SU1569158A1 - Arrangement for prewelding orientation and clamping of parts - Google Patents

Abstract

The invention relates to welding, in particular to auxiliary devices for securing parts in the process of assembly and welding. The purpose of the invention is to improve the orientation accuracy and reliability of the clamping of parts with an end wall. When moving the rod of the pneumatic cylinder 21 to the left, the clamping lever 11 with its base plane abuts against the end of the table 4 and stops. Upon further movement of the rod of the pneumatic cylinder 21 to the left, the rocker 13, compressing the spring 14, presses the clamping lever 11 to the table 4, and the intermediate link 17, turning relative to the stationary hinge 18, with its support 20 presses the end wall 25 from above. In this case, the hinge 19 becomes stationary, and the clamping lever 9, turning around it and receiving the force from the rocker arm 13 through the intermediate link 15 with its self-adjusting cam clamp 10, finally clamps the part 24 and the end wall 25. The device is released in reverse order. By pressing the end wall with an intermediate support, more accurate orientation and more reliable clamping of the parts are provided. 3 il.

Description

The invention relates to welding, in particular, to auxiliary devices for fixing parts in the course of assembly and welding operations, and can be used, for example, for welding beams with an end wall.

The purpose of the invention is to improve the accuracy of orientation and increase the reliability of clamping parts from the end wall.

FIG. 1 shows a stand containing a device for orientation and clamping parts for welding; in fig. 2 shows section A-A in FIG. 1, the device is in the sealed state; in fig. 3 - then l -, with clamped state.

The device 1 for orientation and clamping of parts can be used on a stand that contains a frame 2 in which a turntable 4 is mounted on bearings 3. The table is rotated by a drive 5.

On the upper part of the table k there is a fixed bracket 6 and a movable bracket 7, which is driven by a pneumatic cylinder 8.

The device 1 for orientation and clamping of parts is fixed on the table 4

The device has a clamping lever 9 (FIG. 2) with a self-adjusting cam clamp 10, a clamping lever 11 mounted on the same axis 12 with a beam 13 and spring-loaded relative to it by a spring 1 The clamping lever 9 is connected to the beam 13 by means of an intermediate link 15 and hinges 16, and with the clamping lever 11, an intermediate link G / and hinges 18 and 19, while the intermediate link 17 has a stop 20, the drive is from the pneumatic cylinder 21. The stand is assembled for welding parts and the end wall 25.

The stand works as follows.

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Parts 22 and 23 are mounted on a fixed bracket 6 and a movable bracket 7, and part 2k and the end wall 25 are laid on the table k. The pneumatic cylinder 8 is then actuated and the parts 22 and 23 are clamped between the fixed bracket 6 and the movable bracket 7.

Part 2k and end wall 25 are clamped with a device for orientation and clamping.

The device works as follows.

When moving the rod of the pneumatic cylinder 21 to the left (Figures 2 and 3), the clamping lever 11 with its base plane abuts against the end of the table k and stops. In doing so, the hinge 18 becomes fixed. Upon further movement of the pneumatic cylinder rod 21 to the left, the rocker 13, squeezing the spring 5 ik, presses the clamping lever 11 to the table k, and the intermediate link 17, turning relative to the stationary hinge 18, presses the end wall 25 from above with its emphasis 20. In this case, the hinge 19 becomes stationary and the clamping lever 9, turning around it and receiving the force from the rocker arm 13 through the intermediate link 15 with its self-adjusting cam clamp 10 finally clamps the part 2k and the end wall 25. The device is released in reverse order.

Thanks to this device design, a more precise orientation and more reliable clamping of parts with an end wall is ensured by pressing the end wall with the support of the intermediate link.

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Claims (1)

Invention Formula Device for orientation and clamping parts for welding, containing a pivotally mounted on the base an actuator, a clamping lever for the part and a rocker arm pivotally connected to the actuator, a spring, a clamping lever and intermediate links, one of which is pivotally connected to the clamping lever and the rocker, characterized in that Neither the accuracy of orientation and increased reliability of clamping parts with an end wall, the second intermediate element is made with an emphasis for the end wall of the part and is pivotally connected to the clamping and clamping levers, while the spring is placed between the clamping lever and the rocker arm. L 2 6 / 4 22 U L 23 7 1 21 Fig.Z