JP2559225Y2 - Pallet jig work attachment / detachment device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet jig attaching / detaching apparatus suitable for clamping a work to a pallet jig and removing the work at a predetermined position.

[0002]

2. Description of the Related Art Generally, as a clamp tool for mounting a work on a pallet jig, a work in which a fastener or the like is brought into contact with the work and the work is manually tightened by the fastener using a bolt or a nut is generally employed. ing. In addition, in order to quickly mount a work, automation of a clamp tool has been promoted, but it is difficult to fully automate the work, and in many cases, manual operation is partially performed. On the other hand, a device that takes out a work clamped on a pallet jig after completion of predetermined processing has been conventionally employed. In order to remove the clamped work, a work dispensing device that unclamps the work and discharges the unclamped work is required. In the prior art, the unclamping device and the work discharging device are separately provided, and are operated by individual driving sources arranged in each device.

[0003]

Manual clamping of a work requires a lot of time, and causes a problem of lowering the machine operation rate. In particular, when a large number of works are successively carried into the machine side and processed continuously, if the work mounting time is long, continuous work is not performed smoothly, and there is a problem that production efficiency is reduced. On the other hand, if the unclamping device and the work dispensing device for taking out the processed work are separately arranged, the equipment cost becomes large, and the installation space becomes large, and the space cannot be saved.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and shortens the work clamping and unloading time, improves the machine operation rate, reduces the equipment cost, and saves space. An object of the present invention is to provide a detachable device.

[0005]

In order to achieve the above objects, the present invention provides a clamp device mounted on a pallet jig side for holding a work, and the pallet jig transferred to a work removing position. And a work take-out device for unclamping and paying out the work, wherein the clamp device includes a clamp head portion detachably coupled to the work, a spring, and a pressing force of the spring. A transmission unit that transmits to the clamp head unit and moves the clamp head unit to the clamp position of the work. The work removal device is detachably engaged with the clamp device to unlock the clamp head unit. An unclamping mechanism that moves in a clamp direction and a wire that detachably engages the work and moves in a direction in which the work is dispensed. And a single driving unit that drives the unclamping mechanism and the work discharging mechanism, and between the driving unit and the unclamping mechanism and the work discharging mechanism. A pallet jig attaching / detaching device having a transmission mechanism for simultaneously moving both mechanisms by a predetermined amount is provided.

[0006]

The work is clamped by the clamp device on the pallet jig and transferred to a work take-out device provided at a predetermined place. By the operation of the single drive source, the unclamping mechanism operates, and at the same time, the work discharging mechanism operates via the transmission mechanism. The workpiece is released from the clamp by the unclamping mechanism, and is discharged in the discharging direction by the workpiece discharging mechanism. The next work is clamped on the pallet from which the work has been removed, and the simultaneous steps are sequentially repeated.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing the entire structure of the present embodiment, FIG. 2 is a plan view showing a part of an unclamping mechanism and a work discharging mechanism as viewed in the direction of arrow A in FIG. 1, and FIG. FIG. 4 is a partial front view showing a connection structure with one drive source. The work attaching / detaching device of the pallet jig includes a clamp device 1 for clamping a work and a work take-out device 2 for taking out a processed work. In this embodiment,
The clamp device 1 is mounted on a pallet jig, clamps the work, and is transferred to the work take-out device 2 disposed at a predetermined position. Further, as shown in FIG. 1, the work take-out device 2 is disposed below the pallet jig. The clamp device 1 includes a transmission unit 3, a spring 4, and a head clamp unit 5. On the other hand, the work take-out device 2 includes an unclamping mechanism 6, a work discharging mechanism 7, and a single drive source 8. A transmission mechanism 9 is interposed between the unclamping mechanism 6 and the work discharging mechanism 7. Hereinafter, those detailed structures will be sequentially described.

As shown in FIG. 1, the transmission unit 3 of the clamp device 1 includes an arm 301 and a pin 30 attached to the arm 301.
2, a push-up bar 305 having one end connected to the link plate 303 by a pin 304, a spring receiving member 306 screwed to the other end, and the like. The arm part 301 has a base end at a pin 307.
Is connected to the stand 11. In addition, push-up rod 3
Reference numeral 05 is provided so as to penetrate the base plate 12 of the pallet jig. The spring 4 is provided between the spring receiving member 306 and the base plate 12, and the spring force at the time of attachment is formed so as to have a pressing force capable of sufficiently clamping the work. Head clamp part 5 is arm part 3
01 is detachably fixed by bolts 501, and at its tip end, there are provided contact portions 502 and 503 which contact the work. Although the detailed structure of the head clamp part 5 is omitted, the head clamp part 5 is formed of a structure that allows the contact parts 502 and 503 to simultaneously press against the work during clamping.

A jig base 13 is placed on a base plate 12 of a pallet jig, and a stand 11 and a stopper 14 are fixed on the jig base 13 respectively. The work 10 is positioned with its one surface in contact with the jig stand 13 and the other surface in contact with the stopper 14. In the present embodiment, the case where two sets of the clamp devices 1 are mounted on the base plate 12 is illustrated, but is not limited to this. In addition,
As described later, in FIG. 1, the left side shows a state where the work 10 is clamped, and the right side shows a state where the work 10 is taken out. It is clamped and taken out at the same time.

Next, the unclamping mechanism 6 of the work take-out device 2 will be described. The unclamping mechanism section 6 performs unclamping of the work 10 and is shown in FIGS.
As shown in FIG.
2. A pair of pushers 60 whose axis length is adjustable so as to be adjustable
3, 603 and the pusher 6
03 guide rod 604 disposed along the axial direction of
And so on. The guide rod 604 is slidably supported in the axial direction by a guide bush 16 fixed to the fixed side 15 of the apparatus.

As shown in FIGS. 1 to 3, the work dispensing mechanism 7 includes a support 701, push rods 703 and 703 connected to the support 701 by a nut 702, and a nut 704 in a hollow portion of the support 701. It comprises an operating rod 705 to be connected, and a pair of guide rods 707, 707 and the like connected to both ends of the support base 701 by nuts 706. The pushing rod 703 and the operating rod 705
The guide bar 707 is provided along with the pusher 603. The elongated guide bar 707 is slidably supported by a guide bush 708 mounted on the push-up table 601, and a spring receiving seat 709 is screwed to a lower end side of the figure. A spring 710 is interposed between the spring receiving seat 709 and the guide bush 708, and urges the push rod 703 so as to press it downward in the drawing.

Next, the single driving source 8 will be described. As shown in FIGS. 1 and 3, the single drive source 8 includes a cylinder 801 to which the base 17 on the fixed side 15 is fixed, and a piston rod 802 of the cylinder 801 is connected to the push-up table 601, and the push-up table 601 is moved up and down. Move. The cylinder 801 is connected to a drive source operation controller (not shown) via a pipe (not shown).

Next, the transmission mechanism 9 interposed between the unclamping mechanism 6 and the workpiece discharging mechanism 7 and the single drive source 8 will be described. The transmission mechanism 9 includes a link 9 for connecting one end side of the push-up table 601 with the pin 901.
02, a link 904 where the other end of the link 902 is connected by a pin 903, and one end of the link 904 is a pin 90
5 and an adjusting device 906 connected via the control unit 5. The other end of the link 904 is connected to the base 1 by a pin 907.
It is connected to a bracket 18 fixed to the 7 side. The adjusting device 906 is detachably fixed to the operating rod 705.
Locking tools 908, 909,
By adjusting the engagement position between the actuator rod 9 and the operating rod 705, the relative positional relationship between the link 904 connected via the pin 905 and the operating rod 705 is adjusted.

Guide rod 60 of unclamping mechanism 6
4 has a dog 19 screwed therein.
Are engaged with the limit switches 20 and 21 disposed at the same time.
The limit switches 20 and 21 are for detecting the movement position of the unclamping mechanism 6 and the like.

Next, the operation of each device of this embodiment will be described. First, the operation of the clamp device 1 will be described. Since the head clamp unit 5 is pressed against the jig table 13 by the pressing force of the spring 4, the head clamp unit 5 is pushed up manually or the like, and the work 10 is inserted. The work 10 abuts on the jig base 13 and the stopper 14 and is positioned, and the abutment portions 502 and 503 of the head clamp unit 5.
Is fixed by Thus, the work 10 is clamped on the pallet jig. The work 10 and the clamped pallet jig are transferred onto the work take-out device 2 at a predetermined position.

Next, the operation of the work take-out device 2 will be described. When the processing of the work 10 on the pallet jig transferred to the predetermined position is completed, when the single drive source 8 is operated, the piston rod 802 moves upward in FIG. The lifting table 601 and the pusher 603 of the part 6 move upward. The pusher 603 is the spring holder 30 of the clamp device 1.
When the pusher 603 is further pushed up, the spring 4 contracts as shown on the right side of FIG. 1 and the push-up bar 305 moves upward. Accordingly, the link plate 303 moves, and the arm portion 301 rotates counterclockwise about the pin 307. As a result, the head clamp 5
Moves away from the work 10, and the work 10 is unclamped. On the other hand, the link 902 of the transmission mechanism 9 connected to the push-up table 601 moves with the rise of the push-up table 601, and the link 90
The link 904 to which the two 2 are connected rotates about the pin 907. Since the distal end of the link 904 is connected to the adjusting device 906 via the pin 905, the adjusting device 906 moves. The adjusting device 906 is provided with the operating rod 705 of the workpiece discharging mechanism 7.
Since the operating rod 705 is connected to the support, the support 701 and the pushing rod 703 are raised. Push rod 703 on the base plate of pallet jig
The push rod 703 penetrates the base plate 12 and comes into contact with the work 10 because the through hole 22 through which the through hole 22 can penetrate is formed. Since the work 10 is unclamped by the unclamping mechanism 6 as described above, the work 10 moves upward and is discharged by the lifting of the pushing rod 703.
Thus, the work 10 is dispensed while being unclamped. The link 902 of the transmission mechanism 9 is a link 904
, The support table 701 moves more than the push-up table 601. Therefore, the interval between the guide bush 708 fitted on the push-up table 601 side and the guide bar 707 fixed on the support table 701, that is, the spring 710 contracts, and the push-out rod 703 receives a pressing force in the downward direction. The dog 19 fixed to the guide rod 604 and the limit switches 20 and 21 confirm that the workpiece 10 is unclamped and discharged by the movement of the lifting table 601. At that point, a single drive source 8
Is stopped, the spring 4 and the spring 7
Due to the reaction force of 10, the unclamping mechanism 6 and the work discharging mechanism 7 descend through the transmission mechanism 9 and return to the original position. The discharged pallet jig of the work 10 returns to the original position, and again clamps and circulates a new work 10.

In this embodiment, the clamp device on the pallet jig is shown in the figure, but the detailed structure is not limited to that shown. In addition, the transmission mechanism 9 includes a single drive source 8.
, Which has a function of synchronously moving the unclamping mechanism 6 and the workpiece discharging mechanism 7 that move by moving the pusher 603 and the push-up rod 703 to abut and synchronize with the workpiece 10. Is not limited to

[0018]

According to the present invention, the following effects can be obtained. (1) The work clamp is performed by a simple operation of pushing up the head clamp portion of the clamp device, inserting the work, and releasing the hand from the head clamp portion, thereby shortening the clamp operation time. (2) The unclamping and unloading of the work are performed simultaneously by the operation of a single drive source, so that the work time can be shortened and the machine operation rate can be improved. (3) The unclamping mechanism and the work dispensing mechanism are compactly arranged via the transmission mechanism, thereby saving space. (4) Since a single drive source is used, equipment costs are reduced.

[Brief description of the drawings]

FIG. 1 is a front view showing an entire structure of an embodiment of the present invention.

FIG. 2 is a partial plan view as viewed in the direction of arrow A in FIG. 1;

FIG. 3 is a partial front view showing a connection structure between an unclamping mechanism and a single drive source according to the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Clamp device 2 Work take-out device 3 Transmission part 4 Spring 5 Head clamp part 6 Unclamp mechanism part 7 Work discharge mechanism part 8 Single drive source 9 Transmission mechanism part 10 Work 11 Stand 12 Base plate 13 Jig stand 14 Stopper 15 Fixed side 16 Guide bush 17 Base stand 18 Bracket 19 Dog 20 Limit switch 21 Limit switch 301 Arm part 302 Pin 303 Link plate 304 Pin 305 Push-up bar 306 Spring receiver 307 Pin 501 Bolt 502 Contact part 503 Contact part 601 Push-up table 602 Nut 603 Pusher 604 Guide rod 701 Support 702 Nut 703 Extruded rod 704 Nut 705 Operating rod 706 Nut 707 Guide rod 708 Guide bush 709 Pulling seat 710 spring 801 cylinder 802 piston rod 901 pin 902 link 903 pin 904 link 905 pin 906 adjuster 907 pin 908 locking tool 909 locking tool

Claims (1)

(57) [Scope of request for utility model registration] 1. A clamp device mounted on a pallet jig side for holding a work, and a work pick-up engaged with the pallet jig transferred to a work removal position to unclamp and discharge the work. A clamp head, which is detachably coupled to the work, a spring, and a pressing force of the spring is transmitted to the clamp head to move the clamp head to a clamp position of the work. The work take-out device is detachably engaged with the clamp device to move the clamp head in the unclamping direction, and is detachable from the work. , A workpiece payout mechanism that moves in the direction in which the workpiece is paid out, the unclamping mechanism, and a workpiece A single driving unit for driving the dispensing mechanism, and a transmission mechanism for moving the two mechanisms simultaneously by a predetermined amount between the driving unit and the unclamping mechanism and the work dispensing mechanism. A pallet jig attaching / detaching device, characterized in that a pallet jig is interposed.