JPS6228376Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device for completely deburring a workpiece having a complex shape such as a cam, and having a central hole or slit. Conventionally, various types of buffing equipment, wire brushing equipment, barrel processing equipment, etc. have been used for this type of processing, but these require a lot of manpower and may leave burrs in some areas. There were many cases where too much was taken, resulting in defective products, which hindered efficiency.

However, according to this invention, a processing machine using various rotating tools and a barrel processing machine were used, the processing time required for each process was set constant, and a conveyance device was used to communicate between these machines, so no human intervention was required. Deburring can be performed completely without the need for deburring, which is extremely effective in terms of labor and manpower savings.

Next, the details of the device according to this invention will be explained with reference to the attached drawings. The shape of the workpiece to be deburred by the method of this invention is, for example, the cam shown in FIGS. 7 and 8 or the bearing shown in FIGS. 3. This is to remove burrs from each edge. Deburring in the method and device of this invention involves directly removing burrs formed on the intersection lines of each surface of the workpiece using a rotating tool (for example, deburring using a conical rotating tool described later).
The purpose of this apparatus is that polishing of other surfaces is also necessarily carried out, including means for polishing each surface along the surface and thereby removing burrs created between that surface and the intersecting surfaces. Since this is a deburring device, it will be described below as a deburring device.
Therefore, the configuration of a processing machine according to this invention for deburring such a workpiece is, for example, a processing machine using a rotary tool that swings along the slit for deburring the part of the slit 3, and a center hole. A processing machine using a conical rotary tool to remove burrs from the end face of item 2, an internal polishing machine using a cylindrical rotary tool to polish the inner surface of the center hole and remove burrs from the end face of the center hole, and a polishing machine for polishing the flat surface. At the same time, a flat polishing machine using a rotating tool is required to remove burrs from the end face of the center hole, and a barrel polishing machine is required to deburr and polish the entire workpiece. It consists of a transfer device for feeding in or taking out from the system, and a robot hand for transferring and attaching workpieces that communicates and transfers workpieces between each process.

Examples of the above-mentioned rotary tools include cloth buffs, tools formed by embedding abrasives in plastic (commonly known as non-woven fabric tools), wire brushes, and tools made from fibers embedding abrasives in plastics. Any tool may be used as long as it is flexible or elastic and has abrasive power, but in this case, these tools will be collectively referred to as rotary tools. There are various types of barrel processing machines such as rotary type, vibration type, centrifugal type, reciprocating type, and gyroscope type, but a type that completes machining of the workpiece continuously at regular intervals is suitable. It is inconvenient to use rotary, vibration, centrifugal, or reciprocating methods with attachments, which allow a large number of workpieces to be loaded into a single tank and completed machining at the same time. Adopted. Among these gyroscope systems, for example, JP-A-49-44392 and JP-A-Sho.
The device shown in No. 49-111299 is available. That is, the abrasive material and, if necessary, a compound solution are charged into a cylindrical tank with a vertical central axis, the cylindrical tank is made to stand still or rotates, the workpiece is chucked to the polishing shaft, and a number of polishing shafts are mounted on a turret. The turret is revolved within the abrasive material placed in the cylindrical tank, and the polishing shaft is rotated to polish the surface of the workpiece. At this time, the workpiece attached to the polishing shaft is always polished in the polishing tank, the machined workpiece is removed, and only the polishing shaft, on which the unprocessed workpiece is attached, is raised above the abrasive material to attach and remove the workpiece. A device is used that is configured so that processing of other workpieces continues in the polishing tank even while the workpiece is being attached or removed. In addition, during steady operation, all workpieces are present in each processing device and transport device, and are in the required processing (or stopped mid-transfer) state, and are configured to be sent to the next process once that process is completed. It has been done. In other words, if unprocessed workpieces are inserted one by one or a plurality of workpieces at a time, the same number of processed workpieces as the number of inserted workpieces can be taken out at the same time. For this purpose, in slit deburring equipment, center hole polishing equipment, center hole deburring equipment, and flat polishing machines, the workpiece is sent from the transport device to the processing device during the stop time of intermittent transport, and the workpiece is processed. or take a configuration in which the workpiece is returned to the conveyance device once it has been processed.
While the conveyor is stopped, the workpiece can be fixed using a fixing device and processed.
Also, during this stop time, the workpiece is supplied to the gyroscope processing machine from the conveyance device. The conveyance device after the gyroscope processing machine may be separate from the conveyor device up to the gyroscope machine, but as mentioned above, the unloading of the machined workpiece from the gyroscope processing machine is performed at fixed intervals. This constant time interval is the same as the time interval at which the workpiece is fed from the conveying device to the gyroscope machine. Therefore, the transfer pitch of the conveyor after the gyroscope is the same as that of the conveyor up to the gyroscope. In addition, there is a cleaning device in the middle of the conveyance device after this gyroscope processing machine.
Install rust prevention equipment, air blow equipment, drying equipment, etc. as necessary. The purpose of this invention is to combine a deburring and polishing machine using a rotary tool with the above-mentioned time adjustment and a gyroscope processing machine with a robot hand to perform complete deburring without an operator. It is something to do.

An example of an apparatus for machining the cams shown in FIGS. 7 and 8 is shown in FIGS. 1 to 6. The workpiece loading conveyor 4 serves to align the workpieces and feed them one by one into the device. The workpiece removal conveyor 5 is a conveyor that takes out the workpiece that has been processed out of the processing machine and sends it to the next process.
It has almost the same configuration as the workpiece conveyor 4. Robotic hand for workpiece transportation and installation 6, 7,
Reference numerals 8 and 9 are known devices for transporting a workpiece from one device to the next, changing the posture at the chucking position if necessary, and mounting the workpiece at the chucking position. In these figures, among the various processing devices described above, slit deburring devices 10a and 1 are shown.
0b, a center hole polishing device 11, center hole deburring devices 12a and 12b, and a gyroscope processing machine 47.

Next, the individual processing machines will be explained.

Details of the slit deburring devices 10a and 10b are shown in FIGS. 3 and 4. In other words, the whole is frame 1
A plurality of guide bearings 14a, 14b are fixed on the frame 13, and guide rods 15a, 15b are slidably attached to the bearings. A stand 16 is fixed. Further, a support rod 17 fixed to the support base 16 is connected to the tip of a piston rod 19 of a hydraulic cylinder 18 fixed on the frame 13. Further, a pair of motors 20 are provided above the support base 16.
a, 20b are fixed and rotary tool shafts 22c, 22d rotatably attached to flanges 21a, 21b fixed below the support base 16 can be rotated by rotation mechanisms 23a, 23b such as belts. There is. Rotary tools 22a and 22b are fixed to the rotary tool shafts 22c and 22d, and these rotary tools are attached to the support base 1 by a fluid pressure cylinder 18.
When the slit 6 is lowered, it approaches the workpiece as shown in FIG. 3, and the slit 3 is machined from both sides and deburred from the slit 3. Dogs 24a, 24b are fixed to the tips of the guide rods 15a, and are opposed to proximity switches 25a, 25b, 25c. Slit deburring device 10a, 10
A center hole polishing device 11 and center hole deburring devices 12a and 12b are provided adjacent to the center hole b. Details of the structure of these devices are shown in FIGS. 5 and 6. These devices are constructed using frames 26a and 2 installed on the foundation.
6b, and are completely the same except for the shape of the rotary tool, so they will be explained at the same time.

In FIGS. 5 and 6, the subscript a indicates the center hole polishing device, and the subscripts b and c indicate the center hole deburring device.

For the above-mentioned frames 26a and 26b, the horizontal axis 27
a, 27b, and 27c are fixed, and slides 28a, 28b, and 28c are slidably attached to these horizontal axes. One end of these slides is a hydraulic cylinder 29 fixed to the frames 26a, 26b.
Piston rods 30a, 3 of a, 29b, 29c
It is fixed to the tips of 0b and 30c. That is, by introducing pressurized fluid to the piston side or piston rod side of the hydraulic cylinder, the slide can be moved from side to side in FIG. Slide 2
Rotary tool heads 31 are provided at 8a, 28b, and 28c.
a, 31b, 31c are fixed, and each rotary tool head has a rotary tool 32a, 32b, 3
2c is attached so that it can rotate. Also, motors 33a, 33 for driving this rotary tool
b, 33c are fixed to the rotary tool head. The rotary tool 32a has a cylindrical shape with a diameter slightly larger than the hole diameter of the workpiece, as shown in the lower part of Fig. 5, and 32b and 32c are used for deburring the edge of the center hole 2, as shown in Fig. 5. It is constructed in a conical shape. A stator is provided to prevent the workpiece from moving during deburring with the rotating tool. Its structure is such that a stator support rod 34 is fixed to the foundation, a fluid pressure cylinder 35 is fixed to the upper surface of the stator support rod 34, and the piston rod 3
Stators 37a and 37b are fixed to the tips of 6. The stator mounting plate 38 to which these stators are mounted is guided by a plurality of guide poles 39a and 39b. Dogs 40a and 40b are provided on one side of this guide pole, and a proximity switch 41
It faces a and 41b. In addition, in order to detect the movement of the rotary tool heads 31a, 31b, 31c, shafts 42a, 42 are attached to the slides 28a, 28b, 28c.
2b and 42c are fixed, and the dog 43 is attached to the tip thereof.
a, 43b, 43c 44a, 44b, 44c are fixed, and proximity switches 45a, 45b, 45c, 4
6a, 46b, and 46c. Further, as the loader 48 and unloader 49 for the gyroscope processing machine, for example, a device such as that described in Japanese Patent Application Laid-Open No. 49-83072 can be used.

The operation of the device according to this invention will be explained based on the structure as described above. The unprocessed workpiece is indicated by arrow 5.
Workpiece charging conveyor 4 from the direction 0 (Fig. 2)
supplied to This supply may be done by a separate feeder, or may be done manually. The workpiece conveyed on the conveyor 4 is slit by a slit deburring device 10 by a robot hand 6 for conveying and attaching the workpiece.
It is chucked by a chucking device 10c provided between a and 10b. This chucking can be achieved, for example, by using an intermittent conveying device as the conveying device, and when the workpiece is stopped, the stator is lowered to hold down the upper part of the workpiece as shown in FIG. 6, 37a, thereby fixing the workpiece. Able to achieve purpose. This catching completion signal is detected by a mechanism similar to the dog 40b and proximity switch 41b shown in FIG. As it descends, the motors 20a and 20b are rotated to process both sides of the slit 3 provided in the workpiece and remove burrs.
The machining time is regulated by a timer, and when the specified time ends, the pressurized fluid on the piston side of the fluid pressure cylinder 18 is removed and the pressurized fluid is introduced on the piston rod side, so the rotary tools 22a and 22b rise. do. The workpiece is then passed through a center hole polishing device 11, then a center hole deburring device 12a, 12b.
and sent to the slit deburring devices 10a, 10b.
The center hole is deburred by almost the same operation. When these operations are completed, the workpiece is sent to the front of the gyroscope processing machine 47 by the workpiece conveying robot hand 7, and is mounted on the gyroscope processing machine 47 by the loader 48 and processed. When the machining by the gyroscope processing machine 47 is completed, it is sent onto the conveyor 53 by the unloader 49, and if necessary, it is sent onto the conveyor 5 for removing the workpiece after undergoing processes such as water washing, air blowing, and antirust treatment. It is sent to the next process (in the direction of arrow 51).

The functions of each device have been explained separately above, but during continuous work, workpieces are attached to all workpiece positions, all work is performed simultaneously, and the workpieces are processed continuously at regular intervals, and the workpieces are transferred to the next process. sent to.

Other embodiments of this invention are shown in FIGS. 11 and 12.
A deburring device for a bearing with a circular hole as shown in the figure will be explained. The main body of this deburring device is a gyroscope processing machine, but deburring using various rotary tools is added as a pre-process.
Its structure is shown in FIGS. 9 and 10.

However, this figure only shows the deburring device using a rotary tool as a pre-process, and the subsequent gyroscope processing machine is omitted because it is the same as that shown in Japanese Patent Application No. 51-153122. Figure 9, 1st
In FIG. 0, the transport device 60 is installed on a base 61. The conveying device is a known one that conveys the workpiece 62 in stages at intervals of p. As for the processing device, at the pilot hole deburring position A, a fluid pressure cylinder 64 is fixed to a mounting frame 63 fixed to a base 61 with the piston rod facing downward, and a stator 65 is fixed to the lower end of the fluid pressure cylinder 64. . Below the stator 65, a slide support 66 is installed on the base 6.
1, and a slide 67 is slidably mounted inside the slide support 66.
A rotary tool shaft 68 is rotatably mounted inside the slide 67, and a rotary tool 69 is fixed above the rotary tool shaft 68. rotary tool 69
are rotary tools 75a, 75b, 81a, which will be described later.
As with the devices 81b, 81c, and 81d, any elastic and abrasive material such as a buff, wire, plastic cloth, or plastic wire can be used as in the devices shown in FIGS. 1 to 6. The rotary tool 69 has a motor 7 fixed to the slide 67.
Rotated by 0. The slide 67 and therefore the rotary tool 69 are raised and lowered by a hydraulic cylinder 94 fixed to the base 61. At the upper hole deburring position B, a slide 72 is slidably attached to a slide support 71 that is fixed upright to a base 61. Two sets of bearings 73a and 73b are fixed to the slide 72, and rotating tool shafts 74a and 74b are rotatably attached to each of them, and the distance between the shafts is set equal to the pitch p. Rotary tool shaft 74
Rotary tools 75a, 75b are fixed to the lower ends of a, 74b. The diameters of the rotary tools 75a and 75b are slightly larger than the center hole of the workpiece, and one (75a in the figure) is a tapered tool, and the other (75b in the figure) is a straight tool. Rotary tool shaft 74
Pulleys 76a, 76b are fixed to the upper ends of a, 74b, and rotary tools 75a, 75b are driven by motors 77a, 77b fixed to the slide 72.
It is designed to be able to rotate. The slide 72 carries these devices on the hydraulic cylinder 9.
7, it can be raised and lowered. At the front-back surface deburring position C, the slide 79 can slide on a slide support 78 fixed to the base 61 by the action of a fluid pressure cylinder 83a, and two slides are mounted on the slide 79. Motors 80a, 80b are fixed, and cylindrical rotary tools 81a, 81b are rotatably mounted below the slide with their shafts parallel to the axial direction of the motors 80a, 80b. It is rotated by pulleys 82a and 82b fixed to the tip of the shaft, and is designed to polish the surface of the workpiece on the circumferential surface of the cylinder, remove burrs from the center hole and the outer edge, and polish the surface. It's summery. At this time, the direction of rotation of the rotary tool shaft is reversed so that the holes and edges are evenly deburred. At the left-right surface deburring position D, polishing is performed in a direction perpendicular to the front-back surface deburring position C to remove burrs in the center hole and the edge of the workpiece, and the structure is similar to the device at position C. Since it is only moved in the direction perpendicular to this, D has the same function as the part at position C.
The explanations will be omitted by adding subscripts c and d to the parts at the positions. The rotary tool is therefore 8
It is labeled as 1c, 81d. In addition, B, C, D
A pair of bearings 85a and 85b are fixed on a mounting plate 84 fixed to the base 61 as a support for the workpiece in position, and shafts 86a and 86b slide inside the mounting plate 84. A fixing plate 87 is attached to the shafts 86a and 86b.
are fixed, and the fixed plate 87 has fixed rods 88a, 88b, 88c, corresponding to the positions B, C, and D.
88d is fixed. The tips of these fixing rods form V-shaped grooves, which are suitable for holding circular workpieces. The tip of a piston rod 96 of a fluid pressure cylinder 93 fixed to the mounting plate 84 is fixed to the fixed plate 87.

The operation of the device of this invention will be explained based on the above configuration. The workpiece is fed manually or automatically in the direction of arrow 92, and is fed by a pitch p by a separate intermittent conveyor. That is, during continuous work, 95a, 95b, 95c...9
Workpieces are present at positions 5x, 95y, and 95z, and are sent one by one to the right. Also motors 70, 77a, 77b, 80a, 80b, 80
c, 80d, etc. are assumed to be constantly rotating during operation of this device. Pressurized fluid is introduced into the piston sides of the hydraulic cylinders 64 and 93 at position A in response to a conveyance completion signal from the conveyance device, so that the stator 65 moves the workpiece at position A. Fixed rods 88a, 88b, 88c, 88d
fixes the workpieces at positions B, C, and D. Fixation of these workpieces is detected when the dock 91b attached to the dock plate 90 approaches the proximity switch 89b, and pressurized fluid is introduced alternately into the piston side and the piston rod side of the hydraulic cylinder 94. Therefore, the rotary tool 69 is moved up and down to polish the inner surface of the center hole and remove the burrs on the lower peripheral edge of the center hole. At the same time, at the B station, the hydraulic cylinder 97 is operated to raise and lower the rotary tools 75a and 75b to polish the inner surface of the center hole from above and remove burrs on the edge of the upper surface of the center hole. At positions C and D, two sets of rotating tools 81a, 81b, 81c, and 81d rotating in opposite directions are used to polish the upper surface of the workpiece and deburr the periphery of the center hole. The workpiece that completed the above process is 95z
The workpiece is sent to the next process from the workpiece position.

As described above, according to the device of this invention, the circumferential surface of a rotary tool formed in a cylindrical shape or a cylindrical shape formed by bundling fibers is rotated by applying it to the slit surface, and the deburring tool is rotated along the slit. Deburring device, deburring device around a hole that rotates by abutting the conical surface of a rotary tool made of a conical shape or a conical shape formed by bundling together a cylindrical shape or a cylindrical shape formed by bundling a cylindrical shape A deburring device that polishes the inner surface of a hole and removes burrs from the periphery of the hole by inserting a rotary tool shaped slightly larger than the inner diameter of the hole into the hole while rotating. The cylindrical rotary tools are rotated in opposite directions, and the cylindrical surfaces are pressed against the plane where the hole is located, and rotated and slid back and forth to polish the top surface of the workpiece and polish the open edge of the hole. The loose abrasive material is charged into the tank together with a deburring device using one or more types of rotating tools such as a deburring device, or a combination device for deburring and polishing, and if necessary, rotational movement is applied to the tank. The workpiece, which has been deburred and polished by the rotary tool, is chucked around the shaft and charged into the workpiece, and the workpiece is given an autorotational motion around the chucked shaft, and a plurality of chucked shafts are attached to the workpiece. Since it was used in conjunction with a gyroscope machine that rotates the turret to remove burrs from each part of the workpiece, round the edges, polish the surface, etc., it is not only possible to completely remove burrs, but also to polish the surface and round the edges. In addition to being ideal for seasoning, it can also be unmanned by installing a conveyor-type conveyor, a robot hand for conveying and attaching workpieces, a loader and unloader of workpieces to gyroscope processing machines, etc. This method has the advantage of being able to completely remove burrs.

Furthermore, since a gyroscope machine and a rotary tool are used together, it is possible to easily and reliably remove burrs from the center hole or slit of the workpiece.

In particular, since gyroscope machining is performed using a gyroscope processing machine, it is possible to smoothly deburr workpieces that are continuously conveyed at regular intervals, and prevent interruptions in conveyance or pooling of workpieces. It is not necessary and is very effective in continuous operation.

[Brief explanation of the drawing]

Fig. 1 is a front view of a deburring device according to an embodiment of this invention, Fig. 2 is a plan view thereof, Fig. 3 is a front view of a part of a slit deburring device, and Fig. 4 is a front view of a part of a slit deburring device. Side view of deburring device, fifth
The figures also show a side view of the center hole polishing device and the deburring device, Fig. 6 is a front view, Fig. 7 is a front view of the workpiece, Fig. 8 is a side view of the workpiece, and Fig. 9 is a side view of the workpiece. FIG. 10 is a front view of the deburring device in front of the gyroscope processing machine of the embodiment, FIG. 10 is a plan view thereof, FIG. 11 is a plan view of the workpiece, and FIG. 12 is a side view of the workpiece. 1, 1a, 1b...workpiece, 2,2a...center hole (workpiece), 3...slit, 4...conveyor for loading the workpiece, 5...conveyor for removing the workpiece,
6, 7, 8, 9,... Robot hand for conveying and mounting workpieces, 10a, 10b... Slit burr removal device, 10c... Chucking device, 11... Center hole polishing device, 12a, 12b... Center hole burr. Removing device, 18...Fluid pressure cylinder, 19...
...Piston rod, 22a, 22b...Rotary tool, 22c, 22d...Rotary tool shaft, 23a, 2
3b...Rotating mechanism, 29a, 29b, 29c...
Fluid pressure cylinder, 30a, 30b, 30c...
Piston rod, 31a, 31b, 31c...Rotary tool head, 32a, 32b, 32c...Rotary tool, 33a, 33b, 33c...Motor, 3
4... Stator support rod, 35... Fluid pressure cylinder, 36... Piston rod, 41a, 41b,
... Proximity switch, 47 ... Gyroscope processing machine, 4
8...Loader, 49...Unloader, 52...
... Center hole deburring position checking device, 53,
61...Transfer device, 62...Workpiece, 63...Mounting frame, 64...Fluid pressure cylinder, 69...Rotary tool, 71...Slide support base, 72...Slide, 83a, 83c...Fluid pressure cylinder, 93
...Fluid pressure cylinder, 94...Fluid pressure cylinder, 96...Piston rod, 97...Fluid pressure cylinder, A...Lower hole deburring position, B...Upper hole deburring position, C...Front-back direction surface burr Removal position, D... Left and right surface deburring position.

Claims (1)

[Scope of utility model registration request] A conveying device that intermittently conveys the workpiece is installed in front of a gyroscope processing machine that processes the surface of the workpiece by rotating the workpiece attached to the processing shaft in a cylindrical tank containing abrasive material, and A robot hand is installed between the transfer device and the gyroscope processing machine to move the workpiece from the transfer device to the gyroscope processing machine or from the gyroscope processing machine to the transfer device, and the workpiece is intermittently transferred to the transfer device. A fixing device is attached for fixing the workpiece that has been transferred, and a rotary tool for deburring the center hole, slit, etc. of the workpiece fixed on the transfer device is installed in the vicinity of the transfer device. A deburring device characterized by being installed so that it can be rotated and reciprocated.