JPS59147780A - Processing device for work - Google Patents

Abstract

PURPOSE:To reduce the weight in a vertically movable part and to simplify a driving mechanism by making a setting carriage assembled with a work freely movable back and forth between the setting position and a processing position and permitting the processing of the work by moving vertically only the carriage. CONSTITUTION:A setting carriage 1 is returned to a setting position A, and after a work (a) is set atop the carriage, the carriage advances to a forward processing part B along the guide rail 3 on a machine bed 2. A lifting base 5 is moved upward by a driving cylinder 6 and other driving source, then the carriage 1 supported at the bottom end by a supporting arm 5a extending from the base 5 moves upward. The work (a) is subjected to welding and other processing in the up position. The vertically movable part is made light in weight and the driving mechanism is simplified by the above-mentioned mechanism.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention primarily relates to an apparatus for performing welding and other processing on automobile body frames and other large workpieces.

Conventionally, as seen in Japanese Patent Publication No. 56-7475, a conventional device of this type has a set trolley on which a workpiece can be freely assembled, and is moved along a guide rail on the machine platform into a set position at the rear and a processing position at the front. There is a known type in which the cart is prepared so that it can freely move back and forth between the two positions, and is also able to move upwardly at the processing position, and performs welding or other processing on the workpiece at the upward movement position. Generally, the trolley at the position is moved up and down by a link type or other drive mechanism on the lower side via the guide rail on the lower side and the machine base on the lower side. In this case, the members that are moved up and down are large and heavy as a whole, and are complicated and expensive. In addition, it is necessary to provide four parts at a low cost in preparation for installing the drive mechanism, which is troublesome. Accompany.

The purpose of the present invention is to obtain a device that does not have such inconveniences.The present invention is designed to provide a device that does not have such inconveniences.A set trolley, on which one workpiece can be assembled, is installed at a rear set position and a front set position along a guide rail on the machine base. One of the types is a type in which the cart is provided so as to be movable back and forth between the processing position and the cart is movable upwardly at the processing position, and welding or other processing is performed on the workpiece at the upward movement position. A lifting platform having a support arm extending from the lower surface of the cart at the processing position is provided on the machine base at the processing position so that it can be raised and lowered by a drive cylinder or other drive source on the upper side, and the lifting platform is moved up and down by the cart and the lifting table. It is configured such that it is moved to the upward movement position.

An example of implementing the present invention will be explained with reference to the attached drawings.

In the drawing, (1) shows a set trolley to which a workpiece a can be freely assembled via a set jig (1&) on the upper surface, and the trolley (1) is mounted on a pair of left and right guide rails (31) on a machine base (2). (It is provided so that it can freely reciprocate between the set position A at the rear and the processing position B at the front along the line 31. In the illustrated example, a dispensing unit is provided at the front position of the trolley (1) so that it can be freely connected to the set position A at the rear and the processing position B at the front. A trolley (4) is prepared, and according to the reciprocating movement of the trolley (1) described above, this moves back and forth between the processing position B and the delivery position 0 in front of it, and thus the trolley (4) is when the above-mentioned trolley (1) retreats to the set position A and is prepared for setting the next workpiece a. The workpiece a left after being processed at the upper position can be received there, and when the cart (1) moves forward and is guided to the processing position B, it is accompanied by the delivery position in front of it. 0 and 1 so that preparations can be made for discharging the workpiece a.

Although the above is not particularly different from the conventional one, according to the present invention, the cart (1) at the position B is placed on the machine base (2) at the machining position B.
) has a support arm (5&) extending from the underside of the support base (
5) is installed horizontally and is movable up and down by a drive cylinder or other drive source (6) on the upper side, and thus the trolley (1)
) is supported from below by the support arm (5) according to the upward movement of the support stand (5), and the rail (3) (3
) and the machine stand (2) are left in place so that they can be moved upwardly, and welding and other processing can be performed on the workpiece a at the upwardly moving position.

More specifically, the support stand (5) is attached to a pair of left and right support columns (7) (7) on both valve sides, which are fixed on the machine stand (2), on the inner surfaces facing each other. The guide rail (engages with 87t81 and is supported so as to be movable up and down, and the upper left and right 1
Each rod (
9) (Connected via 91 to the driving source +6) t6
), and furthermore, the support stand (5) has a pair of support arms (5a) on the left and right sides extending forward, and in its downward movement position, the above-mentioned guide rail (3
This type is located slightly below 1f3J and has a split connecting rail (3a) (3a) that connects the front and rear parts of the guide rail (31(3)) fixed on its upper surface. shall be.

Further, the pair of left and right columns (7) (7), together with the pair of left and right columns 0ω00 in front thereof, form a generally rectangular machine frame aυ as a whole, and the upper part of the workpiece a is placed on both valve sides in the middle of the machine frame aυ. Welding gun 0 that faces the moving position and performs welding on it
2 are provided in at least one pair on the left and right, and an upper jig αy for holding the work & in the upward moving position or further above the moving position is provided on the intermediate upper side thereof.

In the drawing, I is a cheno for driving the trolley, (151 indicates the front drive sprocket that engages with this, 1 said sprocket)Q
It is assumed that 51 is driven by a drive motor ae on its side.

To explain its operation, set the set trolley (1) at position N.
After returning the workpiece A and setting the workpiece a on its upper surface, move it forward to the machining position B in front of it, and then move the support table (5) upward, and the cart (1) will move up to the support table. Stand (5)
The lower surface is supported by a support arm (5&) extending from the lower surface and moves upward accordingly, and at the upward movement position, welding or other processing is performed on the workpiece a on the upper surface. During this upward movement, the trolley (1) moves along the pair of guide rails (3) (
34 and the lower machine stand (2) remain as they are and are moved up independently, making the structure simpler and the operation easier than when they are involved.

The support stand t5J then moves downward and the set cart f
l) is returned to the initial setting position A and prepared for setting the next workpiece B. In the illustrated example, this beveled workpiece A is moved to the delivery position in front of it via the delivery cart (4). It is guided by O and can be dispensed freely.

In this way, according to the present invention, a support stand having a support arm extending to the lower side of the cart set at the processing position is provided so that it can be raised and lowered by a drive source on the upper side, and only the cart, that is, the lower guide rail or the like, is provided. The groove is formed so that the machine can be moved up quickly while leaving the machine base behind, and has the effect of eliminating the above-mentioned inconveniences of the conventional system that moves the machine up and down with the machine.

[Brief explanation of the drawing]

Fig. 1 is a side view of one example of the device of the present invention, Fig. 2 is a plan view with the cart removed, and Fig. 3 is a rear view of the device. a...Work, 2)...S'17 car f2J.
...Machine base (3) (3)...Guide rail Person...Set position M B...Processing position (5a)...Support arm +51...Support stand (6)...Drive source Patent applicant Honda Motor Co., Ltd.

Claims (1)

[Claims] A set trolley on which a workpiece can be freely assembled is prepared so as to be able to reciprocate along a guide rail on the machine platform between a set position at the rear and a processing position at the front. A type that can be freely prepared and perform welding or other processing on the workpiece at the upward movement position, which has a support arm on the machine base at the processing position and extending from the bottom surface of the trolley at the position. A workpiece processing device comprising a lifting platform that can be raised and lowered by a drive cylinder or other drive source on the upper side, and the cart is moved upward by the lifting platform to the upward movement position.