CN115258676B

CN115258676B - A loading and unloading device and method for a testing machine.

Info

Publication number: CN115258676B
Application number: CN202210730573.4A
Authority: CN
Inventors: 郑海龙; 肖治祥; 朱涛; 叶坤
Original assignee: Wuhan Jingce Electronic Group Co Ltd; Suzhou Hirose Opto Co Ltd
Current assignee: Wuhan Jingce Electronic Group Co Ltd; Suzhou Hirose Opto Co Ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2026-02-13
Anticipated expiration: 2042-06-24
Also published as: CN115258676A

Abstract

The invention provides loading and unloading equipment for a test machine, which comprises a carrying mechanism, at least four tray frames, a discharging platform for placing a first product and a buffer storage platform for placing a tested product, wherein the at least four tray frames are an empty tray feeding frame, a full tray feeding frame, a qualified product discharging frame and a defective product discharging frame respectively, trays on the tray frames are used for placing a second product, the carrying mechanism is used for mutually transferring the first product among the discharging platform, the buffer storage platform and the test machine, and for mutually transferring the second product and the empty tray among the at least four tray frames, the buffer storage platform and the test machine. The invention also provides a loading and unloading method for stacking the products in the tray and the single-piece products by using the equipment. The loading and unloading equipment for the test machine has high compatibility and reasonable layout, is convenient for loading and unloading stacked trays and large-size products manually, reduces the travel range of a carrying mechanism and the movement travel in work, and improves the working efficiency.

Description

Loading and unloading equipment and loading and unloading method for test machine

Technical Field

The invention belongs to the technical field of electronic product testing equipment, and particularly relates to loading and unloading equipment for a testing machine and a loading and unloading method.

Background

In the production process of electronic components, tens of times or even hundreds of times of detection are needed, for platy electronic component products, such as display panels, circuit boards and the like, various transfer modes are adopted among test stations, generally, small-size products are placed in trays, one or more products possibly are placed in one tray, the trays can be stacked into a plurality of layers so as to manually feed and discharge the trays with a plurality of layers at the same time, large-size products are placed in a larger placing frame in a single-piece manner, and single-piece feeding and discharging are performed manually through single transfer or cart stacking transfer of a conveying belt.

For the test equipment with purification grade requirement, the existing test equipment generally sets corresponding machine stations according to the size of the product, the test machine stations for stacking the tray material can not be used for products for single-chip material loading, otherwise, the test machine stations for single-chip material loading can not be used for small products on the stacking tray, and the compatibility is poor. As is well known, in the appearance test of electronic components, the difference between the test procedures set by the test machine is that the test procedure is selected according to the product during the test, and different test devices are required to be configured due to poor compatibility of the device with the feeding and discharging modes, so that the cost of the device is increased. For test equipment with the functions of sorting, the conveying mechanism needs to shuttle back and forth among the discharging equipment, and the arrangement of the discharging equipment directly influences the stroke and the conveying efficiency of the conveying mechanism. In addition, the test machine generally needs tens of seconds or even minutes for testing a product, in this period, the conveying mechanism for loading and unloading is in a stagnation state, and in the loading and unloading time after the test is completed, the test machine is in a standby state completely, and the longer the standby time is, the lower the working efficiency is.

Therefore, there is a need to provide a loading and unloading device and loading and unloading method for a test machine with high compatibility and high working efficiency.

Disclosure of Invention

The loading and unloading equipment for the test machine provided by the invention has high compatibility, can meet the loading and unloading work of testing products and single-chip products in a tray, and provides a specific loading and unloading method, which can improve the testing frequency, accelerate the testing pace and further improve the testing efficiency.

Other objects and advantages of the present invention will be further appreciated from the technical features disclosed in the present invention.

In order to achieve the above or all or other objects, the loading and unloading device for a test machine provided by the invention comprises a carrying mechanism, at least four tray frames, a loading platform for placing a first product and a buffer platform for placing a tested product, wherein the at least four tray frames are respectively an empty tray loading frame for placing empty trays stacked, a full tray loading frame for placing full trays stacked, a qualified product discharging frame and a defective product discharging frame, the trays on the tray frames are used for placing a second product, the second product is different from the first product in size, the carrying mechanism is positioned at the front side of the test machine, the loading platform is positioned at the front side of the carrying mechanism, the buffer platform is positioned between the carrying mechanism and the test machine, the empty tray loading frame and the full tray loading frame are positioned at the left side of the carrying mechanism, the qualified product discharging frame and the defective product discharging frame are positioned at the right side of the carrying mechanism, the carrying mechanism is used for placing the first product between the loading platform, the carrying platform and the test machine, and the buffer platform are used for mutually carrying the second product, and the fourth tray is positioned between the empty tray and the test machine, and the test machine.

In the production process of circuit boards or panels or other products, small-size products, namely second products, are generally placed in trays for each production and test station, one product may be placed on one tray, two or more products may be placed on the tray, and single-chip transfer is performed on large-size products, namely first products.

When products in the trays are tested, the carrying mechanism takes the products to be tested from the trays on the full tray feeding frame to carry out feeding, the products to be tested are temporarily placed on the buffer platform after the completion of the testing, the carrying mechanism carries out feeding again, standby time of the testing machine is shortened, then the products on the buffer platform are discharged into the trays on the qualified tray frame or the defective tray frame according to the testing result, after empty trays are filled in the top tray of the tray feeding frame, the empty trays are supplemented to the qualified tray frame or the defective tray frame according to the situation, if the qualified tray frame or the defective tray frame does not need to be supplemented with the empty trays, the carrying mechanism is placed on the empty tray feeding frame, and when the tray on the qualified tray frame or the defective tray frame is full of the tray, the carrying mechanism supplements the trays on the empty tray feeding frame to the qualified tray frame or the defective tray frame of the full tray.

When the single-chip product is tested, the product to be tested is placed on the discharging platform, the conveying mechanism is used for feeding the product by the discharging platform, the product is temporarily placed on the buffer storage platform after the test is completed, the conveying mechanism firstly feeds the product to be tested on the discharging platform, and then the product on the buffer storage platform is discharged on the discharging platform.

The tray frame, the discharging platform, the buffer storage platform and the test machine are all arranged in the grabbing range of the carrying mechanism, the carrying mechanism and the work flow of the test machine are debugged and set according to the actual conditions of products to be tested, so that the equipment can be compatible with the testing of products in different feeding modes, the compatibility and the utilization rate of the test equipment are improved, the equipment cost is saved, the switching machine is avoided, and the working efficiency is improved. Simultaneously handling mechanism is located test bench front side, makes the blowing platform is located handling mechanism front side, the buffer memory platform is located between handling mechanism and the test bench, empty pan feeding frame and full pan feeding frame are located handling mechanism left side, qualified products ejection of compact frame and defective products ejection of compact frame are located handling mechanism right side makes things convenient for the manual work to stacking tray, the last unloading of jumbo size product, reduces handling mechanism stroke scope and the motion stroke in the work, reduces equipment overall dimension, practices thrift operating time. Because the buffer platform is close to the test machine, the carrying mechanism can temporarily place the tested products on the buffer platform during operation, firstly, the products to be tested are fed, and then, the products on the buffer platform are fed, so that the standby time of the test machine is shortened, and the test efficiency is improved.

Because the carrying mechanism needs to absorb large-size products, small-size products and trays, in order to ensure the absorption stability, the carrying mechanism is provided with a first sucker and a second sucker which are parallel, the first sucker and the second sucker are respectively provided with a first suction nozzle, the middle part of the first sucker is provided with a hollow area, and the second sucker is connected with a driving piece and shuttles to the hollow area under the action of the driving piece. The first sucker is used when sucking large-size products, the second sucker is located above the first sucker, the second sucker is used when sucking small-size products, the second sucker shuttles to the position below the first sucker under the action of the driving piece, and when sucking the sucker, the proper sucker is selected according to the size of the sucker.

The tray frame comprises a top tray clamping mechanism, a lifting tray table and a carrying table, wherein the top tray clamping mechanism, the lifting tray table and the carrying table are sequentially arranged from top to bottom, the carrying table is arranged on the frame and used for clamping and carrying the stacking tray on the carrying table, the top tray table ascends and reaches the height of the top tray clamping mechanism, the top tray clamping mechanism is used for clamping and fixing the top tray, and the carrying mechanism is convenient to take and put products. The tray frame has realized the automated operation of tray, after the total test of product in full tray pan feeding frame top layer tray is accomplished, transport mechanism moves empty tray to qualified products ejection of compact frame and defective products ejection of compact frame as required, the lift saddle rises the height of a tray, the top tray fixture centre gripping is fixed new top layer tray, and in the same way, full tray pan feeding frame, qualified products ejection of compact frame and defective products ejection of compact frame rise or descend as required in the course of the work and adjust the stack tray position. When the stacking trays on the qualified product discharging frame and the defective product discharging frame reach a certain number, the lifting tray descends, and the stacking tray is placed on the carrying table, so that discharging is facilitated.

The lifting support comprises two opposite clamping pieces which move oppositely or reversely under the drive of the X-direction movement mechanism and lift under the drive of the Z-direction movement mechanism, the top tray clamping mechanism comprises a bracket and clamping blocks movably connected to the bracket, and the clamping blocks move towards or away from the top tray under the drive of the telescopic pieces so as to clamp or release the stacking tray.

The buffer platform side is equipped with the code reader that is used for reading product information, and during operation, handling mechanism will await measuring the product and transfer to the code reader below and read the code logging information, and the production quality process control of being convenient for, the code reading can be gone on when the test bench detects a slice of last product, and the code reading is put back to original position after the code reading, and when the test bench test like this, handling mechanism has accomplished code reading, unloading work, reasonable arrangement process provides work efficiency.

In order to adapt to the cache placement of the first product and the second product, the cache platform is provided with adsorption areas with different sizes, the adsorption areas are formed by continuous air grooves connected end to end, air holes for connecting air pipes are formed in the air grooves, and the proper adsorption areas are selected according to the sizes of the products during operation.

The automatic feeding device is characterized in that the feeding platform is provided with a leaning boss for improving the product placement position precision and an inductor for detecting whether the product is placed in place, for large-size testing, the testing machine allows a small amount of position errors, the leaning boss and the inductor are utilized to ensure the large-size product to be in the position precision on the feeding platform, feedback and calculation work of image acquisition are avoided, equipment cost is saved under the condition of meeting the use requirement, and the working efficiency is improved.

The automatic feeding device is characterized in that an image acquisition device is arranged above the full tray feeding frame and used for acquiring position information of a product to be detected in a full tray at the top layer and detecting the appearance of the product, the image acquisition device is used for photographing the product to be detected, so that the position information of the product to be detected is acquired, a carrying mechanism can conveniently carry out position compensation to take the product, the appearance of the product can be detected, namely, whether the product has defects such as cracks, fragments and unfilled corners or not is judged according to photographed images, when judging that the defects exist, the device alarms, personnel manually exclude the defects and do not continue feeding, and for feeding single-piece products, the defects such as the cracks, the fragments and the unfilled corners are judged by manual visual observation.

The method for loading and unloading the products in the stacking tray by using the loading and unloading equipment of the test machine comprises the following steps:

S1, the image acquisition device shoots and positions the products to be detected in the uppermost tray on the full tray feeding frame, and detects the appearance of the products;

S2, the carrying mechanism takes the product to be detected according to the product position information, moves to the lower part of the code reader to read the code, and returns to the original position in the uppermost full tray after the code reading is completed;

s3, after the product in the test machine is tested, the carrying mechanism takes out the tested product and places the tested product on the cache platform;

S4, the carrying mechanism takes out the products after code reading from the uppermost full tray and places the products into a test machine for loading;

S5, the carrying mechanism discharges the products on the cache platform into the tray on the tray frame of the qualified products or the defective products according to the detection result.

The method for loading and unloading the single-chip product by using the loading and unloading equipment of the test machine comprises the following steps:

s1, manually placing a product to be detected on a discharging platform, enabling an inductor to sense the product, and visually detecting the appearance of the product;

s2, the carrying mechanism takes the product to be detected, moves to the lower part of the code reader for code reading, and returns to the discharging platform after the code reading is completed;

S4, placing the products to be tested after the code reading on the discharging platform by the carrying mechanism into a testing machine for feeding;

s5, the carrying mechanism transfers the products on the buffer platform to the discharging platform;

S6, manually blanking the products on the blanking platform according to the test result.

Compared with the prior art, the invention has the beneficial effects that:

1. According to the loading and unloading equipment for the test machine, the tray frame and the unloading platform are integrated, so that the loading and unloading work of the test in the loading mode of products and single-piece products in the tray can be met, the compatibility and the utilization rate of the test machine are improved, the equipment cost is saved, the machine is prevented from being switched, and the working efficiency is improved;

2. According to the loading and unloading equipment for the test machine, the unloading platform is positioned at the front side of the carrying mechanism, the buffer storage platform is positioned between the carrying mechanism and the test machine, the empty tray feeding frame and the full tray feeding frame are positioned at the left side of the carrying mechanism, and the qualified product discharging frame and the defective product discharging frame are positioned at the right side of the carrying mechanism, so that the loading and unloading of stacking trays and large-size products can be conveniently carried out manually, the travel range of the carrying mechanism and the movement travel in working can be reduced, the overall size of the equipment can be reduced, and the operation time can be saved;

3. according to the loading and unloading equipment for the test machine, the first sucker and the second sucker which are parallel are arranged on the carrying mechanism, and the second sucker can be lifted and shuttled to the hollowed-out area of the first sucker, so that the proper sucker can be selected and used according to the size of a sucked object, and the sucking stability is ensured;

4. According to the loading and unloading equipment and the loading and unloading method for the test machine, the buffer platform is arranged, so that the manipulator can finish the code reading work of the next product to be tested and the unloading work of the last product to be tested while the test machine is tested, the working procedures are reasonably arranged, and the working efficiency is improved.

The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments, as illustrated in the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of specific embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.

FIG. 1 is a schematic structural diagram of a loading and unloading device for a test machine according to a first embodiment of the present invention;

FIG. 2 is a schematic diagram of a structure of the test bench of FIG. 1 with a loading and unloading device removed from the cabinet;

FIG. 3 is a schematic view of the track range and the tray rack taking and placing directions of the handling mechanism in FIG. 1;

FIG. 4 is a schematic view of the track range of the carrying mechanism and the feeding direction of the pallet rack when the pallet rack, the feeding platform and the buffer platform are arranged on one side of the carrying mechanism in a straight line;

FIG. 5 is a schematic view of the track range of the carrying mechanism and the feeding and discharging direction of the pallet frame when the pallet frame, the discharging platform and the buffer storage platform are circumferentially and uniformly distributed around the carrying mechanism;

FIG. 6 is a schematic view of the handling mechanism of FIG. 1;

FIG. 7 is an enlarged view of FIG. 6 at A;

FIG. 8 is a schematic view of the tray rack of FIG. 1;

FIG. 9 is an enlarged view at B in FIG. 8;

FIG. 10 is a schematic structural view of the discharging platform in FIG. 1;

FIG. 11 is a schematic view of the structure of the buffer platform of FIG. 2;

FIG. 12 is a top view of the cushioning platform of FIG. 11;

FIG. 13 is a loading and unloading method of a test machine according to a second embodiment of the present invention;

fig. 14 is a loading and unloading method of a test machine according to a third embodiment of the present invention.

The image acquisition device comprises a 1-frame, a 2-carrying mechanism, a 20-mounting plate, a 21-first sucking disc, a 22-second sucking disc, a 23-driving part, a 24-first sucking nozzle, a 25-sliding block, a3 a-empty disc feeding frame, a3 b-full disc feeding frame, a3 c-qualified product discharging frame, a3 d-defective product discharging frame, a 31-top disc clamping mechanism, a 310-bracket, a 311-clamping block, a 3110-telescopic part, a 312-leaning block, a 313-adjusting mechanism, a 3131-mounting table, a 3132-sliding rail, a 3133-strip groove, a 3134-bolt mounting hole, a 3135-graduated scale, a 32-lifting supporting table, a 321-X-direction moving mechanism, a 322-Z-direction moving mechanism, a 33-supporting table, a 331-handle, a 332-limiting block, a 4-discharging platform, a 41-leaning boss, a 42-sensor, a 43-second sucking nozzle, a 44-notch, a 5-caching platform, a 51-dividing valve, a 52-first air groove, a 521-first air hole, a 53-second air groove, a 531, a 6-reading device and a 7-reader.

Detailed Description

The foregoing and other features, aspects, and advantages of the present invention will become more apparent from the following detailed description of a preferred embodiment, which proceeds with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or rear, etc., are only referring to the directions of the attached drawings. Thus, the directional terminology is used for purposes of illustration and is not intended to be limiting of the invention.

Embodiment one:

The loading and unloading equipment for the test machine table of the embodiment shown in combination with fig. 1 and 2 comprises a carrying mechanism 2, four tray frames 3a,3b,3c and 3d, a discharging platform 4 for placing a first product and a buffer platform 5 for placing tested products, wherein the four tray frames 3a,3b,3c and 3d are respectively an empty tray feeding frame 3a for placing empty trays, a full tray feeding frame 3b for placing full trays, a qualified product discharging frame 3c and a defective product discharging frame 3d, the trays on the tray frames are used for placing second products, the second products are different from the first products in size, the carrying mechanism 2 is located at the front side of the test machine table, the discharging platform 4 is located at the front side of the carrying mechanism 2, the buffer platform 5 is located between the carrying mechanism 2 and the test machine table, the empty tray feeding frame 3a and the full tray feeding frame 3b are located at the left side of the carrying mechanism 2, the qualified product discharging frame 3c and the defective product discharging frame 3d are located at the right side of the carrying mechanism 2, the trays on the first tray frames are used for placing second products, and the buffer platform 4 and the buffer platform 5 are located between the first tray frames 3a, the test machine table 3b and the buffer platform 5 are located between the second products and the test machine table. The number of pallet racks may also be increased for additional use, as space permits in other embodiments.

In the present embodiment, the conveying mechanism 2 is a manipulator, and in other embodiments, the conveying mechanism may be an integrated device such as another linear motion mechanism, a turntable, and a suction cup. Because the conveying mechanism 2 is more in material taking at the full tray feeding frame 3b, the material is discharged to the qualified product discharging frame 3c, and in order to further save the movement stroke of the conveying mechanism 2, the full tray feeding frame 3b and the qualified product discharging frame 3c are close to the position of the test machine. One side of the buffer platform 5, which is close to the test machine, is provided with a code reader 7 for reading product information.

As shown in fig. 3, the arc line shows the track range of the conveying mechanism 2, and the arrow indicates the picking and placing direction of the tray frames 3a,3b,3c,3 d.

Fig. 4 shows a state diagram of tray frames 3a,3b,3c,3d, a discharging platform 4 and a buffer platform 5 arranged on one side of a carrying mechanism 2 in a straight line, and it can be seen that the equipment wastes a large space and has low space utilization rate under the arrangement, the spreading arm of the carrying mechanism 2 needs to be lengthened, the track is longer, the time required for loading and unloading is correspondingly increased, compared with the situation, the embodiment has the advantages of small space size of the equipment, saving loading and unloading time and improving working efficiency.

Fig. 5 shows a state diagram of the tray frames 3a,3b,3c,3d, the discharging platform 4 and the buffer platform 5 being circumferentially and uniformly distributed around the carrying mechanism 2, it can be seen that the floor space of the spreading arms and the equipment of the carrying mechanism 2 needs to be increased slightly under the arrangement, meanwhile, the directions of the tray frames 3a,3b,3c,3d are different, and the tray frames are inconvenient for operators to take and place.

In this embodiment, the test machine is used for testing a circuit board, in order to prevent external interference, the frame 1 is sealed by a black aluminum plastic plate, and safety gates which are convenient for loading and unloading are arranged on both sides and the front side of the frame 1.

For small-size products, namely second products, are generally transported through trays, during testing, the carrying mechanism 2 takes materials from the full tray feeding frame 3b to the testing machine, the materials are temporarily placed on the buffer platform 5 after detection is completed, the carrying mechanism 2 firstly carries out re-feeding, standby time of the testing machine is shortened, then products on the buffer platform 5 are discharged to the qualified product discharging frame 3c or the defective product discharging frame 3d according to detection results, and when the trays on the qualified product discharging frame 3c or the defective product discharging frame 3d are filled with products, the carrying mechanism 2 supplements empty trays on the empty tray feeding frame 3 a. After the top-layer product test of the full tray feeding frame 3b is completed, the empty tray is supplemented to the qualified product discharging frame 3c or the defective product discharging frame 3d according to the requirement, or is temporarily placed on the empty tray feeding frame 3 a.

For large-size products, namely first products, the large-size products are generally fed manually, during testing, the products are manually placed on the discharging platform 4, the carrying mechanism 2 is fed from the discharging platform 4 to the testing machine, the products are temporarily placed on the buffer storage platform 5 after detection is completed, the carrying mechanism 2 firstly carries out feeding of the products to be tested on the discharging platform 4, then the products on the buffer storage platform 5 are fed onto the discharging platform 4, and personnel feed to the designated positions according to detection results and the like.

The transporting mechanism 2 is required to complete the transportation of large-size products, small-size products and trays, in order to ensure the stable absorption of objects with different sizes, a first sucker 21 and a second sucker 22 which are parallel are arranged on the transporting mechanism 2, a first suction nozzle 24 is arranged on each of the first sucker 21 and the second sucker 22, a hollow area is arranged in the middle of the first sucker 21, and the second sucker 22 is connected with a driving piece 23 and shuttles to the hollow area under the action of the driving piece 23. In the present embodiment, the driving member 23 is a cylinder, and in other embodiments, it may be another linear motion mechanism or a telescopic mechanism. The first suction nozzle 24 is respectively installed at the corners of the first suction cup 21 and the second suction cup 22, when sucking large-size products, the first suction cup 21 is used, the second suction cup 22 is driven by the air cylinder to be positioned above the first suction cup 21, when sucking small-size products, the second suction cup 22 is driven by the air cylinder to move downwards to pass through the through hole and be positioned below the first suction cup 21, and when sucking trays, the first suction cup 21 or the second suction cup 22 is selected to be used according to the sizes of the trays.

In the present embodiment, the first suction nozzles 24 are provided at the four corners of the first suction cup 21, and since the second suction cup 22 is small in size, the first suction nozzles 24 are provided only at the two corners, and in other embodiments, may be provided as needed according to the size of the sucked object.

As shown in fig. 7, the first suction cup 21 and the second suction cup 22 are both provided with a chute, the first suction nozzle 24 is mounted on the slide block 25, the slide block 25 is slidably connected in the chute, in actual production, the mounting position of the first suction nozzle 24 is adjusted before testing according to the specific size of a product, the suction firmness is further ensured, and the edge of the chute is provided with a graduated scale along the sliding direction of the slide block 25, so that the adjustment distance is conveniently and intuitively observed.

In order to realize automatic loading and unloading of small-size products, as shown in fig. 8, the tray rack comprises a top tray clamping mechanism 31, a lifting tray table 32 and a carrying table 33 for placing stacked trays, wherein the top tray clamping mechanism 31, the lifting tray table 32 and the carrying table 33 are sequentially arranged from top to bottom, the carrying table 33 is arranged on the frame 1, the lifting tray table 32 is used for supporting the stacked trays from the bottom of the bottommost tray and driving the stacked trays to ascend, the top tray reaches the height of the top tray clamping mechanism 31, and the top tray clamping mechanism 31 is used for clamping and fixing the top tray.

Specifically, the carrier 33 is of a drawer type structure, a handle 331 for pushing and pulling is arranged, a limiting block 332 is arranged on the upper surface of the carrier 33, the stacked trays can be conveniently placed at a fixed position, and a sensor is arranged at the other end of the limiting block 332. The lifting support 32 comprises two opposite clamping pieces which are driven by the X-direction movement mechanism 321 to move in opposite directions or in opposite directions, and driven by the Z-direction movement mechanism 322 to perform lifting movement. The top tray clamping mechanism 31 comprises a bracket 310 and a clamping block 311 movably connected to the bracket 310, wherein the clamping block 311 moves towards or away from the top tray under the drive of a telescopic piece 3110. At least one side of the clamping blocks 311 on one group of adjacent sides of the support 310 is provided with a leaning block 312, in this embodiment two sides, and the clamping blocks 311 on the other group of adjacent sides of the support 310 are provided with an adjusting mechanism 313 for adjusting the initial installation position. The leaning block 312 may have a square structure or a cylindrical structure, and in this embodiment, two adjacent sides use a square structure and a cylindrical structure, respectively.

As shown in fig. 9, the adjusting mechanism 313 includes a slide rail 3132 mounted on the bracket 310, a mounting block 3131 that moves along the slide rail 3132, and a bolt (not shown in the figure) for fixing the mounting position of the mounting block 3131, and the telescopic member 3130, which is an air cylinder in this embodiment, is mounted on the mounting block 3131 below the bracket 310. The mounting plate 310 is provided with a bar-shaped groove 3133, and a bolt mounting hole 3134 is provided at a position corresponding to the mounting block 3131. A scale 3135 is arranged on one side of the sliding rail 3132, the scale 3135 marks according to the adjusted product size, and the product size is convenient to adjust directly without calculation. During adjustment, the mounting block 3131 is moved along the slide rail 3132 by loosening the screw.

In operation, for the full tray feeding frame 3b, the handle 331 is pulled to disengage from the carrying platform 33, the stacking tray is placed on the carrying platform 33, and the stacking tray is positioned by the limiting block 332, so that the inductor can sense the stacking tray. When the product detection on the lifting tray table 32 is completed, after the carrying mechanism 2 takes out the last empty tray, the lifting tray table 32 descends, the stacking tray on the carrying table 33 is lifted, the top tray reaches the height of the top tray clamping mechanism 31 and contacts with the leaning block 312, the clamping block 311 clamps the top tray under the driving of the telescopic piece 3110, the full tray feeding is completed, after the product detection in the top tray is completed, the clamping block 311 is loosened, the carrying mechanism 2 takes out the empty tray, the lifting tray table 32 ascends by one tray height, and the clamping block 311 clamps again.

The empty tray feeding rack 3a and the full tray feeding rack 3b work in the same way.

For the qualified product discharging frame 3c, the qualified product is placed on the top tray by the carrying mechanism 2, when the top tray is full, the lifting tray 32 descends by the height of one tray, the carrying mechanism 2 is supplemented to the qualified product discharging frame 3c by taking empty trays on the empty tray feeding frame 3a, after the set stacking layer number is reached, the lifting tray 32 descends to place the stacking tray on the carrying platform 33 and then ascends, and the carrying mechanism 2 is supplemented to the top tray clamping mechanism 31 by taking empty trays on the full tray feeding frame 3 b.

The defective product discharging frame 3d and the qualified product discharging frame 3c have the same working mode.

As shown in fig. 2, an image acquisition device 6 is arranged above the full tray feeding frame 3b and is used for photographing the products in the full tray, acquiring the position information of the products to be detected and detecting the appearance of the products. In this embodiment, the image capturing device 6 is mounted on the frame 1 on top of the full tray feeding rack 3b for space saving, but may be mounted at other positions in other embodiments. The image acquisition device 6 mainly detects whether the product has defects such as cracks, fragments and unfilled corners, and in addition, the carrying mechanism 2 performs position compensation according to the fed-back position information, so that the carrying mechanism 2 can put the product into the testing machine to determine the position, and the detection is accurate and efficient.

For large-size products, as shown in fig. 10, a positioning boss 41 for improving the accuracy of the placement position of the product and an inductor 42 for detecting whether the product is placed in place are provided on the discharging platform 4. The leaning boss 41 is L-shaped, positioning is performed by taking one corner of a product as a reference, and the two ends of the two sides of the leaning boss 41 are respectively provided with an inductor 42, so that the product is prevented from being biased, and the position accuracy of the carrying mechanism 2 for feeding the product to the testing machine is ensured. A second suction nozzle 43 is arranged on the discharging platform 4 and is used for adsorbing and fixing products and preventing accidental collision and damage. According to different sizes of large-size products, different adsorption areas formed by second suction nozzles 43 are arranged on the discharging platform 4, and a gas dividing valve is arranged to control the second suction nozzles 43 in the adsorption areas to generate negative pressure according to requirements. A notch 44 is also arranged on the discharging disc platform 4, so that the product can be conveniently taken down manually.

Because the large-size product is fed and discharged manually, whether the large-size product has appearance defects such as cracks, fragments, unfilled corners and the like is detected by manual visual inspection. In other embodiments, an image acquisition device may be added as needed to complete the appearance detection.

As shown in fig. 11 and 12, the buffer platform 5 is also provided with adsorption areas with different sizes, the adsorption areas are formed by continuous air tanks connected end to end, and air holes for connecting air pipes are arranged in the air tanks. Specifically, the large adsorption area is formed by a first air tank 52, a first air hole 521 connected with an air pipe is arranged in the first air tank 52, the small adsorption area is formed by a second air tank 53, a second air hole 531 connected with the air pipe is arranged in the second air tank 53, and the air dividing valve 51 controls the first air tank 52 or the second air tank 53 to generate negative pressure according to the size of a product to be placed. In order to save space, the second air groove 53 is located inside the enclosed area of the first air groove 52 in the present embodiment.

Embodiment two:

As shown in fig. 13, the embodiment provides a method for loading and unloading products in a tray by using the loading and unloading equipment for a test machine, which includes the following steps:

S1, the image acquisition device 6 photographs and positions the product to be detected in the uppermost full tray, detects the appearance of the product, judges whether the product has defects such as cracks, fragments, unfilled corners and the like, and when judging that the defects exist, the equipment alarms and personnel manually exclude the defects and do not continue feeding;

s2, the carrying mechanism 2 takes a product to be detected according to the product position information, moves to the lower part of the code reader 7 for code reading, and returns to the original position in the uppermost full tray after the code reading is finished, and the image code marking the product information is positioned at one corner of the product;

S3, after the product in the test machine is tested, the carrying mechanism 2 takes out the tested product and places the tested product on the buffer platform 5, and the buffer platform 5 is positioned between the carrying mechanism 2 and the test machine, so that the time spent in the step is less;

S4, the carrying mechanism 2 takes out the products after code reading from the uppermost full tray and places the products into the test machine for feeding, and because the carrying mechanism 2 compensates according to the position information when taking the products for code reading, when the products are put back to the original position, the placing angle of the products is adjusted to the placing angle required by the test, and therefore photographing is not needed before the step is carried out to obtain the position information;

s5, the carrying mechanism 2 discharges the products on the buffer platform 5 into the tray on the tray frame of the qualified products or the defective products according to the detection result.

In the method, the carrying mechanism 2 temporarily places the tested product on the buffer platform 5, immediately feeds the next product to be tested, saves the standby time of the test machine, and when the test machine tests, the carrying mechanism 2 carries out the code reading work of the next product to be tested and the blanking work of the last tested finished product, thereby reasonably utilizing the test time, improving the test frequency, accelerating the test pace and further improving the test efficiency.

Embodiment III:

As shown in fig. 14, the embodiment provides a method for loading and unloading large-size products of a single-chip product by using the loading and unloading device for a test machine, which comprises the following steps:

s1, manually placing a product to be tested on a discharging platform 4, enabling an inductor 42 to sense the product, visually detecting the appearance of the product, judging whether the product has defects such as cracks, fragments, unfilled corners and the like, and automatically eliminating personnel when the defects exist, and not continuing to feed;

S2, the carrying mechanism 2 takes the product to be detected, moves to the lower part of the code reader 7 for code reading, and returns the product to the discharging platform 4 after the code reading is completed;

S3, after the product in the test machine is tested, the carrying mechanism 2 takes out the tested product and places the tested product on the cache platform 5;

S4, the carrying mechanism 2 is used for placing the products to be tested after the code reading on the discharging platform 4 into the test machine for feeding, and the positioning boss 41 and the sensor 42 are arranged on the discharging platform 4, so that the product placement accuracy is high, and meanwhile, the test machine allows a small amount of position errors for the test of large-size products, so that the position alignment is not needed;

s5, the carrying mechanism 2 transfers the products on the buffer platform 5 to the discharging platform 4;

S6, manually blanking the product on the blanking platform 4 according to the test result.

In the method, the product appearance is detected manually and visually by utilizing the advantages of manual feeding and discharging, the equipment cost is saved, the equipment volume is reduced, and meanwhile, the method has the advantages of reasonably utilizing the test time, improving the test frequency and accelerating the test pace, which are the same as those of the embodiment, so that the test efficiency is improved.

The loading and unloading equipment and the loading and unloading method for the test machine provided by the invention are described in detail, and the structure, the method and the working principle of the invention are described only by applying specific examples, and the description of the above embodiments is only used for helping to understand the method and the core idea of the invention. It should be noted that it will be apparent to those skilled in the art that various improvements and modifications can be made to the present invention without departing from the principles of the invention, and such improvements and modifications fall within the scope of the appended claims.

Claims

1. The loading and unloading equipment for the test machine is characterized by comprising a carrying mechanism (2), at least four tray frames (3 a,3b,3c and 3 d), a discharging platform (4) for placing a first product and a caching platform (5) for placing the tested product, wherein the at least four tray frames (3 a,3b,3c and 3 d) are respectively an empty tray feeding frame (3 a) for placing a stacked empty tray, a full tray feeding frame (3 b) for placing a stacked full tray, a qualified product discharging frame (3 c) and a defective product discharging frame (3 d), the trays on the tray frames are used for placing a second product, the second product is different from the first product in size, and the first product in size is larger than the second product; the handling mechanism (2) is located at the front side of the testing machine, the discharging platform (4) is located at the front side of the handling mechanism (2), the buffer platform (5) is located between the handling mechanism (2) and the testing machine and is used for temporarily storing finished tested products during testing, the empty tray feeding frame (3 a) and the full tray feeding frame (3 b) are located at the left side of the handling mechanism (2), the qualified product discharging frame (3 c) and the defective product discharging frame (3 d) are located at the right side of the handling mechanism (2), the handling mechanism (2) is used for transferring the first products among the discharging platform (4), the buffer platform (5) and the testing machine, and for transferring the second products and the empty trays among the at least four tray frames (3 a,3b,3c,3 d), the buffer platform (5) and the test machine are mutually transported;

The side surface of the cache platform (5) is provided with a code reader (7) for reading product information;

an image acquisition device (6) is arranged above the full tray feeding frame (3 b) and used for acquiring position information of products to be detected in the top full tray and detecting the appearance of the products.

2. The loading and unloading device for the test machine according to claim 1, wherein the carrying mechanism (2) is provided with a first sucker (21) and a second sucker (22) which are parallel, the first sucker (21) and the second sucker (22) are provided with a first suction nozzle (24), the middle part of the first sucker (21) is provided with a hollow area, and the second sucker (22) is connected with a driving piece (23) and shuttles to the hollow area under the action of the driving piece (23).

3. The loading and unloading device for the test machine according to claim 1, wherein the tray frame (3 a,3b,3c,3 d) comprises a top tray clamping mechanism (31), a lifting tray table (32) and a carrying table (33) for placing the stacked trays, which are sequentially arranged from top to bottom, the carrying table (33) is mounted on the frame (1), the lifting tray table (32) is used for clamping and carrying the stacked trays on the carrying table (33) to lift, the top tray reaches the height of the top tray clamping mechanism (31), and the top tray clamping mechanism (31) is used for clamping and fixing the top tray.

4. The loading and unloading equipment for the test machine according to claim 3, wherein the carrying platform (33) is of a drawer type structure, a handle (331) for pushing and pulling is arranged on the upper surface of the carrying platform (33), the lifting supporting platform (32) comprises two opposite clamping pieces, the clamping pieces move oppositely or oppositely under the driving of the X-direction moving mechanism (321), the lifting movement is carried out under the driving of the Z-direction moving mechanism, the top disc clamping mechanism (31) comprises a support (310) and a clamping block (311) movably connected to the support (310), and the clamping block (311) moves towards or away from a top tray under the driving of a telescopic piece (3110).

5. The loading and unloading device for the test machine according to claim 1, wherein the buffer platform (5) is provided with adsorption areas with different sizes, the adsorption areas are formed by continuous gas tanks connected end to end, and gas holes for connecting gas pipes are arranged in the gas tanks.

6. The loading and unloading equipment for the test machine according to claim 1, wherein a leaning boss (41) for improving the precision of the product placement position and an inductor (42) for detecting whether the product is placed in place are arranged on the unloading platform (4).

7. A loading and unloading method for loading and unloading equipment for a test machine table is characterized by comprising the following steps of S1, shooting and positioning products to be tested in the uppermost tray on a full tray feeding frame (3 b) by an image acquisition device (6), detecting the appearance of the products, S2, taking the products to be tested according to product position information by a carrying mechanism (2), moving the products to the lower part of a code reader (7) for code reading, and returning the products to the original position in the uppermost tray after code reading, S3, taking out the products to be tested by the carrying mechanism (2) after the products in the test machine table are tested, and placing the products to be tested on a buffer platform (5), S4, placing the products to be tested after code reading in the uppermost tray from the uppermost tray into the test machine table by the carrying mechanism (2), and S5, unloading the products on the buffer platform (5) to the tray on the tray frame (3) of the qualified products or defective products according to detection results.

8. A loading and unloading method for loading and unloading equipment for a test machine according to claim 1 is characterized by comprising the following steps of S1, manually placing a product to be tested on a loading platform (4) to enable an inductor (42) to sense the product and visually detect the appearance of the product, S2, taking the product to be tested, moving the product to the lower portion of a code reader (7) to read codes, putting the product to be tested back on the loading platform (4), S3, taking out the product to be tested by the conveying mechanism (2) and placing the product to be tested on a buffer platform (5) after the product to be tested in the test machine is tested, S4, placing the product to be tested on the buffer platform (4) by the conveying mechanism (2) to be tested, loading the product to be tested on the buffer platform (4), S5, conveying the product to be tested on the buffer platform (5) to be tested by the conveying mechanism (2), and unloading the product on the buffer platform (4) according to test results by S6.