CN219026521U

CN219026521U - Quick connecting device for welding positioner

Info

Publication number: CN219026521U
Application number: CN202320058641.7U
Authority: CN
Inventors: 谢元立; 张林儒; 郭立明; 张晓峰
Original assignee: CRRC Changchun Railway Vehicles Co Ltd
Current assignee: CRRC Changchun Railway Vehicles Co Ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-05-16
Anticipated expiration: 2033-01-09

Abstract

A quick connecting device for a welding positioner belongs to the field of connecting auxiliary devices for automatic welding robot shifters, and comprises two connecting seat mechanisms, wherein each connecting seat mechanism comprises a chute positioning mechanism, a sliding block connecting seat and two sliding block bolt fasteners; the sliding block connecting seat is fixedly connected with the sliding groove positioning mechanism through two sliding block bolt fasteners. The utility model can realize the rapid fixedly connected assembly of the two connecting seat mechanisms and the clamp; the two slide block connecting seats which are rotationally symmetrically arranged along the geometric center of the clamp can fully utilize the rotational symmetry principle to realize moment balance on the whole layout, thereby reducing stress torque, improving the positioning accuracy of the positioner on the spatial gesture of the workpiece and prolonging the service life of the device. The quick connecting device can remarkably improve the precision and efficiency of centering operation, greatly reduce the labor intensity of installing and dismantling the tool on the positioner, and prolong the service life of the tool.

Description

Quick connecting device for welding positioner

Technical Field

The utility model belongs to the field of connection auxiliary devices for automatic welding robot position changing machines, and particularly relates to a quick connection device for a welding position changing machine.

Background

The workpiece positioner matched with the automatic welding robot can randomly adjust the space arrangement inclination angle and the position of the large weldment according to the gesture given by a program so as to match with a welding gun of the welding robot to weld the weld joints at all positions efficiently.

At present, each workpiece to be welded by the welding robot is connected to the positioner turntable through a clamp of a matched design, however, the existing clamp is usually designed in a one-to-one independent matched mode aiming at different workpiece structures, and the structure differences of the clamps used between different workpieces are large, so that the types of clamps corresponding to different workpieces are various.

On the other hand, the interface of the existing clamp and the workpiece positioner usually adopts a positioning method based on a plurality of screw holes and bolt fasteners, and the traditional positioning connection mode can be completed smoothly only by corresponding all screw holes, so that the centering operation precision is poor, the connection and disassembly are time-consuming and labor-consuming, the efficiency is low, the switching of a plurality of sets of clamps is also unfavorable, and the quick clamping requirement of frequent replacement of weldment product types in the railway passenger car industry cannot be met.

Disclosure of Invention

In order to solve the technical problems that the prior workpiece positioner has a plurality of clamps and the interfaces of the workpiece positioner adopt positioning methods based on a plurality of screw holes and bolt fasteners, the traditional positioning connection mode can be successfully completed only by corresponding all screw holes, the centering operation precision is poor, the connection and disassembly are time-consuming and labor-consuming, the efficiency is low, the switching of a plurality of clamps is not facilitated, and the quick clamping requirement of frequent replacement of weldment product types in the railway passenger car industry cannot be met, the utility model provides a quick connection device for the welding positioner.

The technical scheme adopted for solving the technical problems is as follows:

a quick connecting device for welding positioner, its characterized in that: the device comprises two connecting seat mechanisms, wherein each connecting seat mechanism comprises a chute positioning mechanism, a sliding block connecting seat and two sliding block bolt fasteners; the sliding block connecting seat is fixedly connected with the sliding groove positioning mechanism through two sliding block bolt fasteners.

The chute positioning mechanism comprises a vertical positioner rectangular connecting plate, a horizontal supporting plate and two rectangular bosses which are parallel to each other, and the rear side wall of the supporting plate is vertically and fixedly connected to the horizontal middle line of the positioner rectangular connecting plate; the two rectangular bosses are fixedly connected to the upper end face of the supporting plate, and the three bosses together form a positioning chute, and the slotting direction of the positioning chute is perpendicular to the rectangular connecting plate of the positioner; the upper end face of the rectangular boss is provided with a threaded blind hole.

The angle alpha formed by the connecting line of the threaded blind holes on the two parallel rectangular bosses and the central line of the horizontal supporting plate is 65-80 degrees, and the optimal value of the angle alpha is 72 degrees.

The sliding block connecting seat comprises a base plate and a sliding block which are integrally formed, the sliding block is fixedly connected to the middle of the base plate, the width value of the sliding block is consistent with the groove width value of the positioning sliding groove, and the thickness value of the sliding block is consistent with the depth value of the positioning sliding groove.

The base plate is positioned on the end surfaces of the two sides of the sliding block, a long groove hole is respectively formed in the base plate, and the grooving direction of the long groove hole is perpendicular to the sliding direction of the sliding block; the rectangular connecting plate of the positioner is provided with a bolt hole array matched with the connecting plate of the workpiece positioner.

The sliding block is embedded into the positioning sliding groove, and the sliding block and the positioning sliding groove are in sliding connection with each other; each slider bolt fastener penetrates through one long slot hole in one-to-one correspondence and is in threaded connection with one threaded blind hole in one-to-one correspondence.

The beneficial effects of the utility model are as follows: the quick connecting device for the welding positioner is characterized in that chute positioning mechanisms in two connecting seat mechanisms can be respectively and fixedly connected with a left connecting disc and a right connecting disc on the workpiece positioner through bolt hole arrays. The sliding block is positioned in the middle of the base plate and positioned on the central line of the sliding block connecting seat. The two slide block connecting seats are rotationally and symmetrically arranged along the geometric center of the clamp respectively and are welded and fixedly connected to the outer side walls of the left end and the right end of the clamp respectively along the central line of the clamp. The slide block can be embedded into a positioning slide groove arranged in the center of the upper end face of the slide groove positioning mechanism in a matching manner, so that the center line of the clamp, the slide groove positioning mechanism and the left connecting disc and the right connecting disc on the workpiece positioner can be quickly centered. The slider bolt fastener in each connecting seat mechanism passes through the long slot holes corresponding to the slider bolt fastener one by one and is in threaded connection with one threaded blind hole corresponding to the slider bolt fastener one by one, so that the quick fixedly connecting and assembling of the two connecting seat mechanisms and the clamp are realized. The long slot holes can provide a certain gap in the horizontal transverse direction, so that the fault tolerance is improved.

The two threaded blind holes which are arranged in the direction of an included angle of 72 degrees with the central line of the positioning sliding groove are formed in the sliding groove positioning mechanism, the triangle stability principle is fully utilized, the reliability of the sliding groove positioning mechanism when being connected with the sliding block connecting seat is improved, the transverse shaking and abrasion of the sliding block in the positioning sliding groove are reduced, and the positioning precision is improved. The two slide block connecting seats which are rotationally symmetrically arranged along the geometric center of the clamp can fully utilize the rotational symmetry principle to realize moment balance on the whole layout, thereby reducing stress torque, improving the positioning accuracy of the positioner on the spatial gesture of the workpiece and prolonging the service life of the device.

The quick connecting device for the welding positioner is used as a simple and efficient universal connecting device, can obviously improve the accuracy and efficiency of centering operation when being used for connecting the welding positioner and a tool, greatly reduces the labor intensity of installing and dismantling the tool on the positioner, and improves the service life of the tool, so that the quick clamping requirement of frequently replacing the model of a weldment product in the railway passenger car industry can be fully met, the universality and the utilization rate of the old various clamps are improved, and the effective improvement of the production benefit is brought.

In addition, the quick connecting device for the welding positioner has the advantages of simple and practical structure, convenience in operation, low cost, convenience in popularization and the like.

Drawings

FIG. 1 is a perspective view of a quick connect device for a welding positioner of the present utility model;

FIG. 2 is a schematic perspective view of a connector mechanism according to the present utility model;

FIG. 3 is a schematic view of the explosive assembly of FIG. 2;

FIG. 4 is a schematic view of an exploded assembly of the connecting seat mechanism of the present utility model in another flip angle;

FIG. 5 is a top view of the chute positioning mechanism of the present utility model;

FIG. 6 is a top view of the slider attachment of the present utility model;

FIG. 7 is a schematic illustration of an application of the present utility model when two slider attachment bases are attached to a legacy clip, respectively;

FIG. 8 is a schematic illustration of the application of the quick connect device for a welding positioner of the present utility model in connection with an existing fixture;

fig. 9 is a front view of fig. 8.

Fig. 10 is a top view of fig. 8.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings.

As shown in fig. 1 to 6, the quick connecting device for a welding positioner of the present utility model comprises two connecting seat mechanisms a, wherein the connecting seat mechanisms a comprise a chute positioning mechanism 2, a slide block connecting seat 3 and two slide block bolt fasteners 4; the sliding block connecting seat 3 is fixedly connected with the sliding groove positioning mechanism 2 through two sliding block bolt fasteners 4.

The chute positioning mechanism 2 comprises a vertical positioner rectangular connecting plate 2-1, a horizontal supporting plate 2-2 and two rectangular bosses 2-3 which are parallel to each other, wherein the rear side wall of the supporting plate 2-2 is vertically and fixedly connected to the horizontal middle line of the positioner rectangular connecting plate 2-1; the two rectangular bosses 2-3 are fixedly connected to the upper end face of the supporting plate 2-2, and the three form a positioning chute 2-4 together, and the slotting direction of the positioning chute 2-4 is perpendicular to the rectangular connecting plate 2-1 of the positioner; the upper end face of the rectangular boss 2-3 is provided with a threaded blind hole 2-3-1.

The angle alpha formed by the connecting line of the threaded blind holes 2-3-1 on the two parallel rectangular bosses 2-3 and the central line of the horizontal supporting plate 2-2 is 65-80 degrees, and the optimal value is 72 degrees.

The sliding block connecting seat 3 comprises a base plate 3-1 and a sliding block 3-2 which are integrally formed, the sliding block is fixedly connected to the middle part of the base plate 3-1, the width value of the sliding block 3-2 is consistent with the groove width value of the positioning sliding groove 2-4, and the thickness value of the sliding block 3-2 is consistent with the depth value of the positioning sliding groove 2-4.

The base plate 3-1 is positioned on the end surfaces of the two sides of the sliding block 3-2, a long slot hole 3-1-1 is respectively arranged, and the slotting direction of the long slot hole 3-1-1 is perpendicular to the sliding direction of the sliding block 3-2; the rectangular connecting plate 2-1 of the positioner is provided with a bolt hole array 2-1-1 matched with the connecting plate of the workpiece positioner.

The sliding block 3-2 is embedded into the positioning sliding groove 2-4 and is in sliding connection with each other; each slider bolt fastener 4 penetrates through one long slot hole 3-1-1 in one-to-one correspondence and is in threaded connection with one threaded blind hole 2-3-1 in one-to-one correspondence.

In particular, when the quick connecting device for a welding positioner is applied, as shown in fig. 7 to 10, for any clamp 1 with old design or new design, a slide block connecting seat 3 is welded on the outer side walls of the left end and the right end of the clamp respectively, so that the central lines of the respective slide blocks of the two slide block connecting seats 3 are respectively overlapped with the inherent central line of the clamp 1, and the two slide block connecting seats 3 are rotationally symmetrically arranged about the geometric center of the clamp 1. Then, the workpiece to be machined can be clamped in the corresponding clamp 1, and the left and right chute positioning mechanisms 2 are correspondingly connected with the left and right connecting discs on the workpiece positioner through the respective bolt hole arrays 2-1-1.

And then, the clamp 1 and the two slide block connecting seats 3 fixedly connected with the clamp are hoisted above the workpiece positioner, so that the slide blocks 3-2 in each connecting seat mechanism A are embedded into the corresponding positioning sliding grooves 2-4, and the slide block bolt fasteners 4 in the connecting seat mechanism A penetrate through the corresponding long slot holes 3-1-1 and are in threaded connection with the corresponding threaded blind holes 2-3-1, and the assembly of the two connecting seat mechanisms A and the clamp 1 can be completed.

Claims

1. A quick connecting device for welding positioner, its characterized in that: the device comprises two connecting seat mechanisms (A), wherein the connecting seat mechanisms (A) comprise a chute positioning mechanism (2), a sliding block connecting seat (3) and two sliding block bolt fasteners (4); the sliding block connecting seat (3) is fixedly connected with the sliding groove positioning mechanism (2) through two sliding block bolt fasteners (4).

2. The quick connect device for a weld fixture as defined in claim 1 wherein: the chute positioning mechanism (2) comprises a vertical positioner rectangular connecting plate (2-1), a horizontal supporting plate (2-2) and two rectangular bosses (2-3) which are parallel to each other, and the rear side wall of the supporting plate (2-2) is vertically and fixedly connected to the horizontal middle line of the positioner rectangular connecting plate (2-1); the two rectangular bosses (2-3) are fixedly connected to the upper end face of the supporting plate (2-2), and the two rectangular bosses form a positioning chute (2-4) together, and the slotting direction of the positioning chute (2-4) is perpendicular to the rectangular connecting plate (2-1) of the positioner; a threaded blind hole (2-3-1) is formed in the upper end face of the rectangular boss (2-3).

3. The quick connect device for a weld fixture as defined in claim 2 wherein: the angle alpha formed by the connecting line of the threaded blind holes (2-3-1) on the two mutually parallel rectangular bosses (2-3) and the central line of the horizontal supporting plate (2-2) is in the range of 65-80 degrees, and the optimal value is 72 degrees.

4. The quick connect device for a weld fixture as defined in claim 2 wherein: the sliding block connecting seat (3) comprises a base plate (3-1) and a sliding block (3-2) which are integrally formed, the sliding block is fixedly connected to the middle part of the base plate (3-1), the width value of the sliding block (3-2) is consistent with the groove width value of the positioning sliding groove (2-4), and the thickness value of the sliding block (3-2) is consistent with the depth value of the positioning sliding groove (2-4).

5. The quick connect device for a weld fixture as defined in claim 4 wherein: the base plate (3-1) is positioned on the end surfaces of the two sides of the sliding block (3-2), a long groove hole (3-1-1) is respectively arranged, and the slotting direction of the long groove hole (3-1-1) is perpendicular to the sliding direction of the sliding block (3-2); the rectangular connecting plate (2-1) of the positioner is provided with a bolt hole array (2-1-1) matched with the connecting plate of the workpiece positioner.

6. The quick connect device for a weld fixture as defined in claim 3 or 5 wherein: the sliding block (3-2) is embedded into the positioning sliding groove (2-4), and the sliding block and the positioning sliding groove are in sliding connection with each other; each slider bolt fastener (4) penetrates through one long slot hole (3-1-1) in one-to-one correspondence and is in threaded connection with one threaded blind hole (2-3-1) in one-to-one correspondence.