Combination welding clamp for vertical pipe of wheelchair

Abstract

The utility model discloses a wheelchair stand pipe combination welding clamp which comprises a clamp supporting plate, two propelling mechanisms are installed above the clamp supporting plate, elastic clamping mechanisms are installed at the tail ends of the two propelling mechanisms, and each elastic clamping mechanism comprises a moving block connected with the clamp supporting plate in a sliding mode. The utility model relates to the technical field of welding fixtures, an elastic clamping mechanism is arranged, after vertical pipes are clamped and aligned, a spring is made to be in a compressed state, and therefore under the elastic force effect of the spring, the two vertical pipes tend to be close to each other, and the vertical pipes can be clamped and aligned to be clamped and aligned to be clamped and aligned to be clamped and aligned to be clamped and aligned to be clamped and aligned to be clamped and aligned to be clamped and aligned to be clamped and aligned to be clamped and aligned. Therefore, the two vertical pipes are fully aligned; meanwhile, the problem that an electric telescopic rod is poor in telescopic precision is solved; the elastic clamping mechanism can drive the two vertical pipes to be welded to rotate, so that the positions, which cannot be welded, of the bottoms of the two vertical pipes can be rotated upwards, welding is facilitated, the continuity of a welding gun is guaranteed, and the welding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding fixtures, in particular to a wheelchair riser combined welding fixture. Background Art

[0002] When welding the wheelchair riser, the existing welding fixture can fix the riser, but the riser cannot rotate. When welding with a welding robot, after welding the tops of two aligned risers, it is necessary to adjust the direction of the riser so that the bottom of the riser faces upward, that is, the part of the bottom of the riser that cannot be welded faces upward, and then weld the bottom of the riser. Therefore, the riser cannot be welded continuously, resulting in low welding efficiency. Utility Model Content

[0003] In view of the problems existing in the existing wheelchair riser combined welding fixture, the utility model is proposed.

[0004] Therefore, the purpose of the utility model is to provide a wheelchair riser combination welding fixture, which solves the problem that the existing welding fixture can fix the riser, but the riser cannot be rotated. When welding with a welding robot, after welding the upper parts of two aligned risers, it is necessary to adjust the direction of the riser so that the bottom of the riser faces upward, that is, the part of the bottom of the riser that cannot be welded faces upward, and then the bottom of the riser is welded. Therefore, the riser cannot be continuously welded, resulting in low welding efficiency.

[0005] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0006] A wheelchair riser combined welding fixture comprises a fixture support plate, two propulsion mechanisms are installed above the fixture support plate, and elastic clamping mechanisms are installed at the ends of the two propulsion mechanisms.

[0007] As a preferred solution of a wheelchair riser combination welding fixture described in the utility model, wherein: the elastic clamping mechanism includes a moving block slidably connected to the fixture support plate, a support pin is slidably connected to the moving block, a limiting disk is welded to one end of the support pin, and a motor bracket is fixedly connected to the other end of the support pin, a spring is sleeved on the support pin, a servo motor is installed on the motor bracket, and the output shaft of the servo motor is connected to the clamping assembly.

[0008] As a preferred solution of the wheelchair riser combination welding fixture described in the utility model, the clamping assembly includes a hollow sleeve with an open end, a fastening pin is threadedly connected to the sleeve, and one end of the fastening pin is rotatably connected to an arc-shaped clamping plate.

[0009] As a preferred solution of the wheelchair riser combined welding fixture described in the utility model, a rotating support ring is welded on one end of the arc-shaped clamp close to the fastening pin, and the rotating support ring is rotatably connected to the fastening pin through a bearing.

[0010] As a preferred solution of the wheelchair riser assembly welding fixture described in the utility model, a rotating disk is welded on one end of the fastening pin away from the rotating support ring.

[0011] As a preferred solution of the wheelchair riser combination welding fixture described in the utility model, a slide groove is opened on the fixture support plate, a slider is welded to the bottom end of the moving block, and the inner wall of the slide groove is slidably connected to the slider.

[0012] As a preferred solution of the wheelchair riser combined welding fixture described in the utility model, a support block is installed on the top middle portion of the fixture support plate through bolts, and an arc-shaped notch is opened on the support block.

[0013] As a preferred solution of a wheelchair riser combination welding fixture described in the utility model, the propulsion mechanism includes a stand block, one end of the stand block is detachably connected to an electric telescopic rod, and the other end of the electric telescopic rod is detachably connected to the moving block.

[0014] As a preferred solution of the wheelchair riser assembly welding fixture described in the utility model, wherein: a first support connection seat is welded on the moving block, the electric telescopic rod is inserted into the inner wall of the first support connection seat, and the electric telescopic rod and the first support connection seat are fixed by bolts;

[0015] A second support connection seat is welded on the vertical block, an electric telescopic rod is inserted into the inner wall of the second support connection seat, and the second support connection seat and the electric telescopic rod are fixed by bolts.

[0016] Compared with existing technologies:

[0017] 1. By setting up an elastic clamping mechanism, after the vertical pipes are clamped and aligned, the spring is compressed, so that under the elastic force of the spring, the two vertical pipes tend to approach each other, thereby ensuring that the two vertical pipes are fully aligned; at the same time, the problem of poor telescopic accuracy of the electric telescopic rod is also solved;

[0018] 2. The elastic clamping mechanism can drive the two welded vertical pipes to rotate, so that the parts of the bottom of the two vertical pipes that cannot be welded can be rotated upwards, which facilitates welding, ensures the continuity of the welding gun, and improves welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure provided by the utility model;

[0020] Figure 2 Figure provided for the utility model;

[0021] Figure 3 Figure provided for the utility model;

[0022] Figure 4 Figure provided for the utility model.

[0023] In the figure: the fixture support plate 1, the vertical block 2, the second support connecting seat 3, the support block 4, the fixed block 41, the arc-shaped notch 42, the slide groove 5, the slider 6, the moving block 7, the electric telescopic rod 8, the first support connecting seat 9, the support pin 10, the limit plate 101, the spring 11, the motor bracket 12, the servo motor 13, the sleeve 14, the rotary disk 15, the fastening pin 16, the arc-shaped clamping plate 17, and the rotating support ring 171. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] The utility model provides a wheelchair riser combined welding fixture, please refer to Figure 1-4 , including a clamp support plate 1, two propulsion mechanisms are installed above the clamp support plate 1, and elastic clamping mechanisms are installed at the ends of the two propulsion mechanisms.

[0026] The elastic clamping mechanism includes a moving block 7 which is slidably connected to the clamp support plate 1. Specifically, a slide groove 5 is opened on the clamp support plate 1, and a slider 6 is welded to the bottom end of the moving block 7. The inner wall of the slide groove 5 is slidably connected to the slider 6, so that the movement of the moving block 7 is smoother and more stable. A support pin 10 is slidably connected to the moving block 7, and a limiting disk 101 is welded to one end of the support pin 10. The other end of the support pin 10 is fixedly connected to a motor bracket 12. A spring 11 is sleeved on the support pin 10, and a servo motor 13 is installed on the motor bracket 12. The output shaft of the servo motor 13 is connected to the clamping assembly.

[0027] The clamping assembly includes a hollow sleeve 14 with an open end, a fastening pin 16 is threadedly connected to the sleeve 14, a rotary disk 15 is welded to the end of the fastening pin 16 away from the rotating support ring 171, and an arc-shaped clamping plate 17 is rotatably connected to one end of the fastening pin 16. The arc-shaped clamping plate 17 is driven to move by tightening the fastening pin 16, thereby clamping the end of the riser to be welded.

[0028] A rotation support ring 171 is welded to one end of the arc-shaped clamping plate 17 close to the fastening pin 16 , and the rotation support ring 171 is rotationally connected to the fastening pin 16 via a bearing.

[0029] A support block 4 is installed at the top of the middle part of the clamp support plate 1 by bolts. An arc-shaped notch 42 is opened on the support block 4. The arc-shaped notch 42 is used to support the welding end of the vertical pipe to be welded, thereby stably supporting the vertical pipe to be welded together with the sleeve 14.

[0030] The propulsion mechanism includes a vertical block 2, one end of the vertical block 2 is detachably connected to the electric telescopic rod 8. Specifically, a second support connecting seat 3 is welded on the vertical block 2, and the electric telescopic rod 8 is inserted into the inner wall of the second support connecting seat 3. Internal threaded holes are provided at corresponding positions of the second support connecting seat 3 and the electric telescopic rod 8. The second support connecting seat 3 and the electric telescopic rod 8 are fixed by bolts. The other end of the electric telescopic rod 8 is detachably connected to the moving block 7. Specifically, a first support connecting seat 9 is welded on the moving block 7, and the electric telescopic rod 8 is inserted into the inner wall of the first support connecting seat 9. Internal threaded holes are provided at corresponding positions of the electric telescopic rod 8 and the first support connecting seat 9, and the electric telescopic rod 8 and the first support connecting seat 9 are fixed by bolts.

[0031] When used specifically;

[0032] Step 1: insert two risers to be welded into the sleeve 14 respectively, and place the risers between two arc-shaped clamping plates 17, and tighten the fastening pin 16 to drive the arc-shaped clamping plates 17 to clamp the risers;

[0033] Step 2: The electric telescopic rod 8 extends to drive the moving block 7 to move until the other end of the vertical tube is located in the arc-shaped notch 42 of the support block 4, and the two electric telescopic rods 8 continue to extend until the two vertical tubes are aligned and the spring 11 is in a compressed state;

[0034] Step 3: A welding robot or a person holding a welding gun welds the upper part of the joint of the two vertical pipes. The servo motor 13 drives the sleeve 14 to rotate, so that the bottom of the vertical pipe faces upward, and then welds the position that cannot be welded at the bottom of the vertical pipe.

[0035] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A wheelchair riser assembly welding fixture, comprising a fixture support plate (1), characterized in that: Two propulsion mechanisms are installed above the clamp support plate (1), and elastic clamping mechanisms are installed at the ends of the two propulsion mechanisms; The elastic clamping mechanism comprises a moving block (7) slidably connected to a clamp support plate (1); a support pin (10) is slidably connected to the moving block (7); a limiting disk (101) is welded to one end of the support pin (10); the other end of the support pin (10) is fixedly connected to a motor bracket (12); a spring (11) is sleeved on the support pin (10); a servo motor (13) is installed on the motor bracket (12); and the output shaft of the servo motor (13) is connected to a clamping assembly.

2. A wheelchair riser combined welding fixture according to claim 1, characterized in that: The clamping assembly comprises a hollow sleeve (14) with an open end, a fastening pin (16) being threadedly connected to the sleeve (14), and an arc-shaped clamping plate (17) being rotatably connected to one end of the fastening pin (16).

3. A wheelchair riser combined welding fixture according to claim 2, characterized in that: A rotating support ring (171) is welded to one end of the arc-shaped clamping plate (17) close to the fastening pin (16), and the rotating support ring (171) is rotatably connected to the fastening pin (16) via a bearing.

4. A wheelchair riser combined welding fixture according to claim 2 or 3, characterized in that: A rotating disk (15) is welded to one end of the fastening pin (16) away from the rotating support ring (171).

5. The wheelchair riser combined welding fixture according to claim 2, characterized in that: The fixture support plate (1) is provided with a slide groove (5), the bottom end of the moving block (7) is welded with a slider (6), and the inner wall of the slide groove (5) is slidably connected to the slider (6).

6. The wheelchair riser assembly welding fixture according to claim 1, characterized in that: A support block (4) is mounted on the top of the middle portion of the clamp support plate (1) via bolts, and an arc-shaped notch (42) is provided on the support block (4).

7. The wheelchair riser assembly welding fixture according to claim 1, characterized in that: The propulsion mechanism comprises a vertical block (2), one end of the vertical block (2) is detachably connected to an electric telescopic rod (8), and the other end of the electric telescopic rod (8) is detachably connected to a moving block (7).

8. A wheelchair riser combined welding fixture according to claim 7, characterized in that: A first supporting connection seat (9) is welded on the moving block (7), the electric telescopic rod (8) is inserted into the inner wall of the first supporting connection seat (9), and the electric telescopic rod (8) and the first supporting connection seat (9) are fixed by bolts; A second supporting connection seat (3) is welded on the upright block (2); an electric telescopic rod (8) is inserted into the inner wall of the second supporting connection seat (3); and the second supporting connection seat (3) and the electric telescopic rod (8) are fixed by bolts.

Images