JPS6067041A - Exchange device of jig - Google Patents

Abstract

PURPOSE:To enable the replacement work of a jig main unit to be promptly performed only by the lifting action of lifting frames, by providing a clamping member and a guide member on the lifting frame liftably provided on a jig base, in the case of an exchange device of welding jig or the like. CONSTITUTION:A jig main unit 9, when it is replaced for changing the kind of a work W, is lifted from a jig base 6, under a condition the jig main unit 9 is supported to guide members 16, by lifting lifting frames 14 by lifting cylinders 17 and releasing the jig main unit 9 from its press fixing by clamping members 15 while adapting the guide member 16 on the lifting frame 14 to the bottom face of a tongue piece part 9a. The jig main unit 9, if it is moved upward to a position it is detached from positioning pins 6a, can be moved sideward and easily drawn out to a receiving bed 19 by suitably mounting a metal fitting to a hook 9d, subsequently a different jig main unit 9 is carried in on the guide members 16 through the receiving bed 19 and fixed to the jig base 6 through the clamping members 15 by lowering the lifting frames 14. In such way, the jig can be easily further promptly replaced.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a jig exchange device such as a welding jig, and more specifically, a jig exchange device of a type in which a jig main body attached to a jig pace can be attached and detached. Regarding.

Conventionally, in this type of device, the jig main body is fixed on the meeting cough jig pace by providing a connecting bottle and a locking device and metal fittings on the jig pace to engage the bin. This is a general method in which the locking device is unlocked, and a lifting device such as a crane is used to lift the jig body out of the jig space and take it out to the side. In addition, it is necessary to prepare equipment for lifting, which is an inconvenience that increases equipment costs.

It is an object of the present invention to provide a device which eliminates all such inconveniences, and includes a jig exchange device in which a jig main body that can be seen on a jig base can be detached and replaced.
The jig pace is provided with an entire elevating frame that can be freely raised and lowered toward the jig body, and the elevating frame is engaged with the jig main body by lowering the elevating frame to press and fix it to the jig pace. The present invention is characterized in that it includes a clamp member, a guide member that comes into contact with the jig main body as the elevating frame rises, and supports the jig main body so as to be movable laterally.

Next, the present invention will be explained with reference to the illustrated embodiments.

Fig. 1 shows an automatic welding device using a welding jig (1) equipped with the device of the present invention, in which the cough jig (1) is moved to a rear setting position A by a longitudinally elongated conveying device (2). The jig (11ff:
The jig (
1) Perform tack welding on the upper workpiece W, then attach the jig (1
) The workpiece W on the jig (1) is raised by the lifting device (3) consisting of an X-shaped link mechanism together with the planned transport device (2), and the workpiece W on the jig (1) is transferred to the upper workpiece holder (4) in preparation for the work position B. k
After handing it over, a welding robot (not shown) or the like performs a multiple-light B contact.

Here, the cough jig (1) is connected to a conveyance chain (2a) provided in the conveyance device (2), and the jig base (5) looks into the carriage (5) which is reciprocated on a guide rail (2b). 61
Above are set members (7) such as positioning bins and crane parts for positioning and fixing the workpiece, and welding gun (8).
The jig main body (9) is completely detachable and replaceable, and when changing the model of workpiece W, the jig main body (9)
At all set positions A, the main body of the jig is replaced with another jig body corresponding to the new work wlc.

In addition, in the illustrated example, the jig (1) is
The jig base (6) is rotatably supported on the trolley (5) so that the jig base (6) can be tilted backwards to easily set the workpiece W from the rear. 6)
The cam n (11, 1) of the extractor engages with the guide roller αG protruding circularly at the rear end.The cam plate (b), which does not have two parts, is raised and lowered by the action of the cylinder cl, as shown in Fig. 2. The jig (11) can be installed freely, and the jig (11
The entire set is moved back to the set position A, and the jig base (61) is tilted in the opposite direction together with the jig body (9) by the engagement of the roller αG in the cam groove (lla), and the workpiece W
Furthermore, in the case of machine fJIK, the jig (1) is moved back to the set position with the cam plate (b) laid down, and the jig base (6) is moved to the lock cylinder provided on the trolley (5). The main body (9) of the jig body (9) is changed while being held in a sloppy position.

According to the present invention, the jig base (6) has an elevating frame αi1 that can be freely raised and lowered toward the jig main body (9), and the elevating frame α4 has an elevating frame αi1 that can be freely raised and lowered toward the jig body (9). A clamp member Q51 that engages with the jig body (9) and presses and fixes it to the jig base (6), and a clamp member Q51 that comes into contact with the jig body (9) by lowering the row/lowering frame α→. A guide member is provided to support the jig body (9) in a movable manner on the side, the details of which are shown in Figures 3 and 4. The tongue piece part (9aFr left uncut and an inverted-shaped concave groove (9b) extending laterally) is formed in one pair in the front and rear, and the lifting frame 0→
are long in the lateral direction, and are arranged in pairs in the front and rear in correspondence with the respective grooves (9b), and each lifting frame 04 is mounted on the jig base (6), respectively, in pairs on the left and right sides. A lifting cylinder (17) (171 is used to freely move up and down. A plurality of bottles (14, 2)' inserted into each groove (9b) are installed in each lifting frame αa, and these bottles (14a ) at the top of the clamp member (Jn''k), which is a horizontally elongated plate facing the upper surface of the tongue piece (9a), and further attaches the tongue piece (9a) to each lifting frame (14). The first guide roller (
16a), and a second guide roller (LEB) that abuts the edge of the tongue portion (9a) on each bin (14a).
The jig main body (G) is pivotally supported by the second guide roller (
16b), it is possible to support the first guide roller (16a) so as to be movable in the horizontal direction while preventing swinging in the front-rear direction.

In addition, the cough jig main body receptacle has a positioning bottle (6a) on the jig base (6) that fits into a positioning hole (9c) on the lower surface of the cough jig main body.
the catch seat (j6) on the jig base j6).
6b).

In the drawing, (9d) is the hook installed on the side surface of the jig body (9), and (g) is the welding gun (8) mounted on the jig base (6).
) transformer, aI indicates a jig or a cradle for replacement.

Next, to explain the operation of the above-described device of the present invention, the lifting cylinder αη and the lifting frame (b) are normally pressurized in the entire downward direction. The jig body (9) is pressed downward by engaging with the jig body (9).
The jig main body (9) is press-fixed to the jig base (6) while being positioned by the positioning pin (6a).

When changing the model of workpiece W and replacing the jig body (9) with another one, use the lifting cylinder (b) to move the lifting frame α.
4) This is to fully raise the jig main body (9), which releases the clamping fixation of the jig main body (9) by the clamp member Of9, and also causes the guide member (to) on the elevating frame α4 to move upward from the tongue portion (
9a), the jig main body (9) is lifted from the jig pace (6) while being supported by the guide member (6), and detached from the positioning bin (6a). Once the jig main body (9) is moved up to the position, the jig main body (9) can be moved laterally.Hook an appropriate metal fitting on the hook (9d) on the side surface of the pl. It can be easily pulled out to one cradle 09, and then another jig body (9) can be easily pulled out to the cradle (6).
into the guide member (A) via the lift frame Q4).
ft- When lowered, the jig main body (9) is pressed and fixed to the jig pace (6) by the clamp member (a) in the same way as above.

As described above, according to the present invention, when the elevating frame prepared for the jig pace is lowered, the jig body is clamped and fixed to the jig pace by the clamp member provided on the elevating frame, and when the elevating frame is raised, the jig main body is clamped and fixed to the jig pace. The jig main body is supported by a guide member installed in the jig so that it can be detached from the jig pace and moved laterally, and the elevating frame can be raised and lowered without using a separate lifting device such as a crane. The whole reversing work of the jig body can be easily and quickly performed by just one operation, improving the cutting efficiency, and has the effect of reliably resolving the above-mentioned disadvantages of the conventional method.

[Brief explanation of the drawing]

Fig. 1 is a side view of an automatic welding device using a welding jig equipped with the device of the present invention, Fig. 2 is a front view of a cam plate provided at the set position of the welding device, and Fig. 3 is a view of the welding jig. The side view, FIG. 4, is a cross-sectional view taken along the line ■-■ in FIG. 3. (6)...Jig pace, (9)...Jig body, Q4
1... Lifting frame, (g)... Clamp member. (G)...Guide member. Patent applicant: Honda Motor Co., Ltd. 12 people

Claims (1)

[Claims] In a jig exchange device in which a jig main body mounted on a jig base is detachable and replaceable, an elevating frame that can be freely raised and lowered toward the jig main body is provided on the jig pace, and the elevating frame is attached to the elevating frame. a clamp member that engages the jig main body as the frame descends to suppress and fix it to the jig pace; and a clamp member that abuts the jig main body and moves it laterally as the elevating frame rises. A jig exchange device characterized by a freely supported guide member and a metal fitting.