JPH03189032A - Carrying in and away device for work - Google Patents

Abstract

PURPOSE:To efficiently use a machine and to increase freedom in arrangement of a member by providing a clamping arm on a work carrying in station and making the tip of the clamping arm an ejector to push a preceding work to a work carrying away station. CONSTITUTION:When the work W is fed onto a positioning mechanism I the clamping arm 12 sends a already-positioned preceding work W to a work working station at the positioning mechanism I. Further, the ejector 13 on the tip of the clamping arm 12 pushes a worked work in the working station to the work carrying away station. Since a function of carrying away or resetting a preceding or succeeding work from or to a press is given, the machine is used efficiently and freedom is increased in the arrangement of the member constituting the device.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a device for loading and unloading a work into a processing device such as a press.

(Prior Art) As a workpiece conveyance device, one disclosed in Japanese Patent Publication No. 59-14452 and the like is known. That is, conventional conveyance devices generally arrange rails or feed bars along the conveyance direction of the workpiece, and attach sliders to these rails.
A workpiece is placed on this slider and transported.

(Problems to be Solved by the Invention) In the conventional conveyance device described above, when a workpiece processing device is disposed in the middle of the workpiece conveyance path, the workpiece is transported to the processing device and into the processing device. inputting the workpiece,
Because the workpieces are unloaded from the processing equipment and the unloaded workpieces are transported using separate transporting equipment,
A plurality of drive sources are required, and the entire device becomes large and complicated.

(Means for Solving the Problems) In order to solve the above problems, a first invention provides a gripping arm that grips a workpiece positioned at a workpiece loading station on the upstream side of a workpiece processing station and sets it in a processing device. The tip of the arm was used as an ejector to push out the preceding workpiece processed at the processing station to the workpiece delivery station on the downstream side.

In addition, the second invention provides a gripping arm at a workpiece unloading station on the downstream side of the workpiece processing station for gripping the processed workpiece and discharging it out of the processing apparatus, and the rear end of this gripping arm is used to hold the unprocessed workpiece following the workpiece. This is a locking part that can be pulled into the processing equipment.

(Function) Either grip the workpiece and set it in the processing device, or
As the gripping arm moves out of the processing device, a preceding processed workpiece is simultaneously removed from the processing device, or a subsequent unprocessed workpiece is introduced into the processing device.

(Example) Embodiments of the present invention will be described below with reference to the accompanying drawings.

Figure 1 is an overall view of a workpiece processing device to which the workpiece loading/unloading device according to the present invention is applied, Figure 2 is an enlarged view of the workpiece loading station, Figure 3 is a plan view of the workpiece loading station, and Figure 4 is a top view of the workpiece loading station. Fig. 2 is a view taken along arrow A-A in Fig. 2, Fig. 5 is a front view of the workpiece cutting mechanism, Fig. 6 is an enlarged view of the main part of Fig. 5, Fig. 7 is a plan view of the workpiece cutting mechanism, Fig. 8 is an enlarged sectional view taken along line B-B in FIG. 7, FIG. 8 is a sectional view of the workpiece positioning mechanism, FIG. 10 is a plan view of the workpiece positioning mechanism, and FIG. 11 is a front view of the press machine. Figure 12 is the first
1, FIGS. 13 and 14 are views showing the operation of the press machine, and FIG. 15 is a view showing a further upstream portion of the workpiece processing apparatus.

The workpiece processing device is sequentially installed at the workpiece loading station 31 from the upstream side. A workpiece processing station S2 and a workpiece unloading station S3 are arranged, and the structure of each station will be explained below. The work will be explained using a wheel in which a disk portion and a rim portion are welded together as an example.

First, the work loading station S1 is provided with a transport mechanism T1 for the work W, a cutting mechanism K for the work W, and a positioning mechanism for the work W.

The transport mechanism T for the workpiece W includes guide rails 2.2 on the upper member of the frame 1, a gate-shaped shift support 3 is engaged with these guide rails 2.2, and the cylinder unit has one end fixed to the frame 1. The other end of 4 is fixed to the shift support base 3, and the shift support base 3 is moved forward and backward (in the left-right direction in FIG. 1) by the operation of the cylinder unit 4.

A vertical guide rail 5 is provided on the front side of the shift support base 3.
A lift table 6 is engaged with the guide rail 5, and the lift table 6 is moved up and down by the operation of a cylinder unit 7 provided on the shift support base 3. A pair of shafts 8.8 are installed spaced apart from each other on the lifting table 6, and one end of the lever 8.8 is fitted onto these shafts 8.8 so as to rotate integrally with the shaft 8. 8. Overlap the other ends of 9 and insert the elevating table θ into the long hole 10 formed in this overlapping part.
The rod tip of the cylinder unit 11 attached to the top surface is engaged, and the base end of a gripping arm 12.12 that holds the workpiece W from left and right sides is rotated integrally with the shaft 8.8. Furthermore, the tip of the gripping arm 12 serves as an ejector 13. Therefore, the cylinder unit 11
gripping arm 12.1 via lever 9 and shaft 8 upon actuation of
2 performs opening and closing movements.

Further, a vertical cylinder unit 14 is attached to the front face of the shift support base 3, and the rod of this cylinder unit 14 is used as a work transfer rod 15.

The action of the transport mechanism T is to stop the work W transported by the self-propelled conveyor 1G at the cutting position,
The work transfer rod 15 is lowered and engaged with the work W, and then the shift support base 3 is moved by the operation of the cylinder unit 4.
is advanced, and the workpiece W is sent out along the slide plate 17 onto the positioning mechanism 1. At this time, the gripping arms 12, l2 are gripping the preceding workpiece W that has already been positioned in the positioning mechanism, and in parallel with the above operation, the gripping arms 12 and l2 are holding the preceding workpiece W at the workpiece processing station S2.
Further, the ejectors 13, 13 at the tip of the gripping arm 12.12 push out the processed workpiece in the processing station S2 to the workpiece unloading station S3.

As shown in FIGS. 5 to 7, the mechanism for cutting out the workpiece W includes columns 21, 22, .
23 and the vertical guide rod 24 are fixedly installed, and the support column 2
A horizontal support shaft 25 is attached to the upper end of the support shaft 25, and a swinging arm 26.2θ is supported at both ends of this support shaft 25 so as to be swingable in the vertical direction. On the left side in the figure) one temporary stop rod 28 is erected on a plate 27 installed between the ends, and a pair of cutting rods 30 and 30 are erected on a plate 29 installed between the downstream ends. . Further, the lower end of the vertical cylinder unit) 31 is rotatably supported on the support column 22, and a link 32 is attached to the rod of this cylinder unit 31, and the link 32 is attached to the shaft between the downstream ends of the swing arms 2θ and 26. The swing arm 26 is made to swing up and down by the operation of the cylinder unit 31, and the - time stop rod 28 and the cutting rod 30 alternately appear and disappear upward from between the self-propelled conveyors 16. , - hour stop rod 28 and cutting rod 3
Only one workpiece W can be inserted between the workpiece 0 and 0.

On the other hand, a swinging arm 35 is supported on the support column 23 via a shaft 34, one end of this swinging arm 35 is connected to the intermediate part of the link 32, and the other end is connected to a guide rod 24 as shown in FIG. It is connected via a roller 38 to a hole 37 of an elevating frame 36 which is slidably engaged with the elevating frame 36, and the elevating frame 36 is moved up and down by the operation of the cylinder unit 31. Further, the lifting frame 36 supports a ball screw 40 that is rotated by a handle 39, and this ball screw 40 has threaded portions in opposite directions on the left and right, and support blocks 41 and 41 are screwed into each threaded portion. On the upper surface of the support block 41141, there are stopper bins 42, 42 that appear and retract from between the self-propelled conveyor 16 and the slide plate 17 as the lifting frame 38 moves up and down.
has been established.

Here, a positioning pin 43 is attached to the outer surface of the support block 41, and a cylinder 44 is rotatably attached to the outer surface of the lifting frame 36, and an axial through hole 45 is formed in the cylinder 44. A plurality of steel balls 4θ are formed spaced apart in the rotational direction, and by pressing a spring-biased steel ball 4θ against a small hole formed inside the radial direction of each through hole 45, the cylinder 44 is moved intermittently with a click feeling. Further, each through hole 45 is equipped with a pin 47 having a different length corresponding to the model of the workpiece W from the outside.

Therefore, the stopper bin 4 is changed in response to the model change of the workpiece W.
2. To adjust the spacing of 42, first remove the locking mechanism 48, turn the handle 39 to move the support blocks 41, 41 inward so that they are closer to each other, and the positioning bins 43
is pulled out from the through hole 45, and then the pin 47 of the length corresponding to the changed model is moved to a position opposite to the positioning pin 43 by rotating the cylinder 44, and then the handle 39 is moved in the opposite direction to that described above. Turn the support block 41.4
1 are moved outwardly away from each other, and the positioning pin 43 is inserted into the through hole 45, and the receiver abuts against the pin 47 to position the support blocks 41 and 41. After this, the locking mechanism is engaged to prevent the stopper bins 42, 42 from moving. In this way, by preparing the bins 47 for a plurality of supports depending on the model in advance, and adjusting the spacing between the stopper bins 42 and 42 by applying a positioning bin to a predetermined receiver, it is easy to respond to model changes. becomes.

As shown in FIGS. 9 and 10, the positioning mechanism for the work W is performed by fixing a guide member 51 to a base 50, and attaching the cylindrical portion 53 of the turntable 52 to the outer periphery of the guide member 51 via a bearing 54. A gear 56 rotatably fitted on the outside and rotated by a motor 55 attached to the lower surface of the base 50 is meshed with a gear 57 extending over the outer periphery of the cylindrical portion 53.

A guide rod 59 is slidably inserted into a vertical guide hole 58 formed in the guide member 51.
A plate 81 is attached to the upper end of the guide rod 59 that protrudes upward from the guide member 51, and the stud bolt of the work W positioned on this plate 61 is connected to the rod of the cylinder unit θ0 attached to the base 50. A positioning pin 62 is provided that engages with the insertion hole W1 from below.

Further, a support 83 is erected on the base 50, one end of the support plate 64 is rotatably supported on the upper end of the support 63, and the lower end of the cylinder unit θ5 is supported pivotally on the lower end of the support 63.
The rod of this cylinder unit 65 is attached to the support plate 64.
The support plate 64 is connected to the intermediate portion of the cylinder unit 85 so that the support plate 64 can be swung up and down by the operation of the cylinder unit 85. Further, a guide bar 66 is provided on the support plate 64, a sensor support arm 67 is engaged with the guide bar 66, and a light emitting element 68 and a light receiving element 69 are installed at the tips of the upper and lower arms of the sensor support arm 67, respectively. Installation, said motor 55
When the light receiving element 68 senses that the light from the light emitting element 88 has passed through the valve hole W2 of the workpiece W on the turntable 52, which is rotated by the The positioning pin 62 provided on the plate θ1 is engaged with the stud bolt insertion hole W1 of the workpiece W from below to complete positioning (phasing). When the positioning is completed, the cylinder unit 65 is compressed and the support plate 64 is rotated downward so that it does not interfere with the work W being carried into the press machine.

Furthermore, an insertion/extraction knob 70 passes through the support plate θ4, and an insertion pin 71 is provided on the back side through which the insertion/extraction knob 70 passes through, via a support plate 74, and the insertion pin 71 is engaged with the support plate 64. Insertion hole 72...
is drilled, and the insertion/removal knob 70 and the sensor support arm 6
A spring 73 is interposed between the spring 7 and the spring 7. Therefore, in order to shift the positions of the light emitting element 68 and the light receiving element 69 in accordance with the model change, the insertion/removal knob 70 must be pressed against the spring 73.
Push in and pull out the insertion bottle 71 from the insertion hole 72, move the sensor support arm θ7 along the guide bar 66,
The insertion pin 71 is fitted into the insertion hole 72 at a predetermined position and adjusted.

The workpiece processing station S2 is equipped with a press machine 8o for correcting the shape of the workpiece after press-fitting.

As shown in FIGS. 11 to 14, this press machine 80 consists of an upper die 81 and a lower die 82. The upper die 81 is attached to a lifting table 83, and the lower die 82 is fixed on a base 84. There are four pillars 85 extending downward from the lower surface of the lifting platform 83.
A pair of workpiece support rails 8θ are installed between the lower ends of these supports. A shaft 88 is rotatably supported by a bearing 87 on the upper surface of the work support rail 86, and a part of the work support rail 86 inside the bearing 87 is cut out 89, and an arm 80 fixed to both ends of the shaft 88 is cut out. A workpiece support claw 91 that fits in the notch 89 is attached, and the workpiece support claw 81 rotates against a spring 92 when pushed up from below, and the arm 90 rotates against force when pushed from above. is in contact with the upper surface of the workpiece support rail 88 to prevent the wire support claw 91 from rotating below the horizontal level.

Then, the workpiece W is set on the lower die 82 for pressing, and then the lifting table 83 is lowered and the workpiece support rail 8θ is lowered together with the upper die, so that the workpiece W is placed on the outer periphery of the upper surface of the workpiece W. The support claw 81 comes into contact with the workpiece support claw 8
1 rotates upward, and the workpiece support claw 91 descends to the recessed portion of the rim, as shown in FIG. After the work W is straightened between the upper mold 81 and the lower mold 82 in this state, the lifting table 83 is raised. Then, as shown in FIG. 14, the workpiece support claw 91 comes into contact with the lower surface of the rim of the workpiece from below, but as described above, the workpiece support claw 91 has a structure that does not rotate below the horizontal direction. Since the workpiece W is attached, it is picked up from the lower die. This workpiece W is then pushed out to the workpiece unloading station S3 by the ejector 13 described above.

A tilted chute 83 is provided at the workpiece unloading station S3.
and a self-propelled roller 94 are arranged.

FIG. 15 shows a setting station S4 for the workpiece W on the upstream side of the workpiece processing apparatus of the present application, and a jig 104 for temporarily press-fitting the rim 100 and disk 101 that constitute the workpiece W is arranged at this setting station S4. A lifter 102 is provided above the jig 104 to lift the workpiece W temporarily press-fitted by the cylinder unit 103.

This lifter 102 is equipped with a work support rail 105 similar to the work support rail 86, and when going down, it goes below the work, and when going up, it goes down below the work W.
is lifted from the set table 106. Then, the workpiece W supported by the workpiece support rail 105
The conveyor 11 is connected to the conveyor 11 by a pull-out member having a claw 108 that is rotatable only in the direction of the arrow in the figure about a shaft 107.
It is pulled out above 0.

The overall operation of the workpiece processing apparatus having the above configuration will be described below.

First, the workpiece W temporarily press-fitted at the workpiece setting station S4 is transferred to the self-propelled conveyor 1 through the main press-fitting device to the workpiece loading station S1 of the workpiece processing device of the present invention.
6, so it is sent. The workpiece W sent into the workpiece loading station Sl is temporarily stopped on the self-propelled conveyor 16 by a temporary stop rod 28 in the cutout mechanism.

Next, the temporary stop rod 28 is retracted by the extension movement of the cylinder unit 31 in the cutting mechanism, and the cutting rod 30
protrudes from between the self-propelled conveyors 16, and the workpiece W advances to the position of the cutting rod 30.

Thereafter, when the processing of the preceding workpiece W is completed, the cutting rod 30 is retracted by the compression movement of the cylinder unit 31, and the workpiece W is transported to the position of the positioning bin 42. When the workpiece W reaches the position of the positioning bin 42 and stops, the workpiece transfer rod 15 is lowered by the operation of the cylinder unit 14 of the transfer mechanism T and engages with the workpiece W from above.
Next, the shift support base 3 is advanced by the extension movement of the cylinder unit 4, and the workpiece W is transferred by the workpiece transfer rod 15 along the slide plate 17 onto the turntable 52 of the positioning mechanism I.

Next, in the positioning mechanism (2), the phase of the workpiece W is determined using the hole W2 as a reference for pulp attachment.

During this time, the shift support stand 3 of the transport mechanism T retreats to its original position in preparation for transporting the subsequent workpiece.

When the phasing of the workpiece W is completed, the cylinder unit 11 is compressed, the arms 12 and 12 are closed, and the workpiece W for which the phasing has been completed is gripped.

Thereafter, the cylinder unit 7 is operated to pull up the lifting table 6 to lift the workpiece W from the turntable 52, and the shift support table 3 is moved forward again to transfer the following workpiece W onto the turntable 52 and onto the arm 12.12. The workpiece W that has been gripped and has undergone phase adjustment is carried into the press machine 80 of the workpiece machining station S2.
12 is opened, the shift support stand 3 is moved backward, and the shape of the workpiece W is corrected between it and the upper die 81.

When the shape correction is completed, the upper mold 81 is raised and the mold is opened. At this time, the workpiece W is lifted from the lower mold 82 while being hooked from below by the support claws 91 of the workpiece support rail 8θ. When the arm 12.12 moves forward to carry the subsequent workpiece into the press machine 80, the workpiece W, which has already undergone shape correction and is supported on the workpiece support rail 8e, is placed at the tip of the arm 12. It is ejected onto the chute 93 of the workpiece unloading station S3 by the provided ejector 13.13.

In this way, while the shift support table 3 of the transport mechanism T returns one time, the workpiece W whose phase adjustment has been completed is loaded into the press machine.
The subsequent workpiece W is set in the positioning mechanism I and the preceding workpiece W is discharged at the same time.

In the above illustrated example, the workpiece gripping arm is arranged at the carry-in station S1, but the workpiece gripping arm may be arranged at the carry-out station S2. In this case, in parallel with the workpiece gripping arm discharging the processed workpiece from the press machine, a stop part (similar in shape to the ejector shown in the example) provided at the rear end of the workpiece gripping arm , so that the positioned unprocessed workpiece is drawn into the press machine along the slide rail.

(Effects) As explained above, according to the present invention, the arm that grips a workpiece and carries it into or out of a press machine, etc. has the function of discharging or setting a preceding workpiece or a following workpiece from a press machine. Therefore, there is no mechanical waste, and the degree of freedom in arranging the members constituting the device increases.

[Brief explanation of drawings]

Figure 1 is an overall view of a workpiece processing device to which the workpiece loading/unloading device according to the present invention is applied, Figure 2 is an enlarged view of the workpiece loading station, Figure 3 is a plan view of the workpiece loading station, and Figure 4 is a top view of the workpiece loading station. Fig. 2 is a view taken along arrow A-A in Fig. 2, Fig. 5 is a front view of the workpiece cutting mechanism, Fig. 6 is an enlarged view of the main part of Fig. 5, Fig. 7 is a plan view of the workpiece cutting mechanism, Fig. 8 is an enlarged sectional view taken along line B-B in FIG. 7, FIG. 8 is a sectional view of the workpiece positioning mechanism, FIG. 10 is a plan view of the workpiece positioning mechanism, and FIG. 11 is a front view of the press machine. Figure 12 is the first
1, FIGS. 13 and 14 are views showing the operation of the press machine, and FIG. 15 is a view showing a further upstream portion of the workpiece processing apparatus. In the drawing, 3 is a shift support stand, θ is a lifting table, 12 is an arm, 13 is an ejector, 15 is a work transfer rod, and 17
2 is a slide plate, 2 is a temporary stop rod, 30 is a cutting rod, 42 is a positioning rod, 52 is a turntable, 80 is a press machine, 86 is a work support rail, 9
1 is a workpiece support claw, ■ is a positioning mechanism, K is a cutting mechanism, T is a transport mechanism, SL is a workpiece loading station, S
2 is a workpiece processing station, S3 is a workpiece unloading station, and W is a workpiece. Patent applicant: Honda Motor Co., Ltd. Agent
Person Patent Attorney 2 1) Yong - Immediate question
Patent Attorney Kuni Ohashi
Patent Attorney Yu Koyama Figure 14

Claims (2)

[Claims] (1) In a workpiece loading/unloading device in which a workpiece loading station is arranged upstream of a workpiece processing station and a workpiece unloading station is arranged downstream, the workpiece loading station grips a positioned workpiece and sets it in the processing device. A workpiece loading/unloading device comprising a gripping arm, and a tip of the gripping arm serving as an ejector for pushing out a preceding workpiece processed at a processing station to a downstream workpiece unloading station. (2) In a workpiece loading/unloading device in which a workpiece loading station is arranged upstream of a workpiece processing station and a workpiece unloading station is arranged downstream, the workpiece unloading station grasps the processed workpiece and carries it out of the processing device. A workpiece loading/unloading device characterized by being provided with a gripping arm for dispensing, and a rear end of the gripping arm serving as a locking portion for pulling a subsequent unprocessed workpiece into the processing device.