Double-station robot welding tool

Abstract

The utility model provides a double-station robot welding tool, which belongs to the field of welding fixtures and comprises a fixture component capable of rotating along with a driving device, and a square supporting tube and a bottom plate can be clamped on the fixture component. The clamp assembly comprises a supporting plate, a vertical plate and a clamping mechanism are vertically arranged on the supporting plate, the clamping mechanism comprises a B angle block capable of moving towards the vertical plate, and a distance-adjustable clamping area is formed between the inner wall of the vertical plate and the outer wall of the B angle block, so that a supporting square pipe is clamped in the clamping area; the clamp assembly comprises a supporting plate, the supporting plate is connected with the supporting plate through a positioning pipe, and a clamping part used for fixing a bottom plate is arranged on the side, facing the supporting plate, of the surface of the supporting plate. The positioning device has the advantages that the positioning device can be linked with a welding robot and is suitable for development of the prior art, the clamp assembly can accurately position the supporting square pipe and the bottom plate, and the consistency of products is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the field of welding fixtures, in particular to a double-station robot welding fixture. Background Art

[0002] The welding of the finished workpiece requires welding the bottom plate on one side of the supporting square tube, welding the cover plate on the other side, and welding a positioning sleeve on the outer wall of the supporting square tube. In the prior art, the operator needs to flip the supporting square tube and weld the welding points one by one by holding a welding gun, but manual welding has the following disadvantages:

[0003] 1. In order to weld different parts of the supporting square tube, the supporting square tube needs to be repeatedly turned over, which increases the operator's physical labor. During the turning process, it is also easy to cause bumps, resulting in damage to the appearance;

[0004] 2. The consistency of the products cannot be guaranteed. The quality of the finished welding products will vary depending on the operator's experience, and is not suitable for large-scale production;

[0005] Moreover, with the development of program control and automation technology, the application of welding robots not only reduces labor costs and improves production efficiency, but also ensures processing quality. In order to be linked with the welding robot, this application proposes a double-station robot welding tooling. Utility Model Content

[0006] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a double-station robot welding tooling that can be linked with a welding robot and is suitable for the development of the prior art. The fixture assembly can accurately position the supporting square tube and the base plate, greatly improving the consistency of the product.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is: a double-station robot welding tool, including a clamp assembly that can rotate with a driving device, and the supporting square tube and the bottom plate can be clamped on the clamp assembly;

[0008] The clamp assembly includes a support plate, on which a vertical plate and a clamping mechanism are erected, and the clamping mechanism includes a B angle block that can move toward the vertical plate, and a clamping area with an adjustable distance is formed between the inner wall of the vertical plate and the outer wall of the B angle block, so that the supporting square tube is clamped in the clamping area;

[0009] The clamp assembly comprises a support plate, the support plate is connected to the pallet through a positioning tube, and a clamping portion for fixing the bottom plate is arranged on a side of the support plate facing the pallet.

[0010] Furthermore, the clamping mechanism includes an angle pressing plate and an angle block A connected to the support plate, and the angle block B is moved by being squeezed by the angle pressing plate.

[0011] Furthermore, the clamping portion includes a retaining plate and a positioning platform protruding outward from the retaining plate, and the positioning platform supports the inner cavity of the bottom plate.

[0012] Furthermore, the clamping portion includes a positioning pin connected to the retaining plate and used to pass through a through hole on the bottom plate, and at least one positioning pin is provided.

[0013] Furthermore, the clamping mechanism includes a fastening assembly for controlling the position of the angle pressure plate, and an inclined force-bearing surface is provided on the same side corresponding to the A angle block and the B angle block, a moving channel is formed between the two force-bearing surfaces, and slopes corresponding to the force-bearing surfaces are provided on both sides of the angle pressure plate.

[0014] Furthermore, the driving device includes a base and two rotating arms arranged relatively on the base, and the clamp assembly can be detached between the two rotating arms.

[0015] Furthermore, an end plate is arranged on the other side of the support plate, and a clamping arm is arranged on one side of the rotating arm, and the clamping arm is linked to the end plate through a double-ear support seat.

[0016] Furthermore, a centering clamping mechanism is provided on the rotating arm on the other side, and the positioning tube is linked to the centering clamping mechanism via a connecting mechanism.

[0017] Furthermore, the fixture assembly is linked to the welding robot.

[0018] The advantages and positive effects of the utility model are:

[0019] 1. Due to the adoption of the above technical solution, linkage with the welding robot can be achieved to replace manual welding and ensure welding quality. The driving device can drive the fixture assembly to flip with the welding robot without manual operation, which reduces manual labor and avoids bumps on the appearance. The double-station setting can process two workpieces at the same time, improve processing efficiency and save labor manufacturing costs.

[0020] 2. The clamping mechanism and the clamping part in the fixture assembly can accurately position the supporting square tube and the base plate, and cooperate with the welding robot to achieve one-step forming of correction and welding;

[0021] The angle pressure plate in the clamping mechanism is pressed down to make the angle block B close to the supporting square tube. The restriction on the angle block B can be released by lifting the angle pressure plate. The through hole on the bottom plate only needs to correspond to the positioning pin in the clamping part, and the inner cavity is placed on the positioning table to complete the positioning of the bottom plate. The overall operation steps are simple and convenient, and the operator's experience requirements are not high. The processing can be completed while ensuring the accuracy of the clamping position.

[0022] 3. The fixture assembly is detachably connected to the rotating arm through the double-ear support seat and the connecting mechanism, so that the fixture assembly is also easy to disassemble. The setting of the pad in the connecting mechanism can prevent the positioning tube and the positioning plate from generating a gap and causing shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 It is the front view of the fixture assembly of the utility model;

[0025] Figure 3 It is a schematic diagram of the support plate of the utility model;

[0026] Figure 4 This is a schematic diagram of the clamping part of the utility model;

[0027] Figure 5 It is a schematic diagram of the finished workpiece of the utility model;

[0028] Figure 6 It is a schematic diagram of a bottom plate in a finished workpiece of the utility model.

[0029] In the figure:

[0030] 1. Base; 2. Rotating arm; 21. Clamping arm; 22. Centering clamping mechanism;

[0031] 3. Driving unit; 31. Connecting unit;

[0032] 4. End plate; 41. Support plate; 42. Stop plate; 421. Positioning platform; 422. Positioning pin;

[0033] 5. Positioning tube;

[0034] 6. Support plate; 61. Vertical plate; 62. Angle block A;

[0035] 7. Angle pressing plate; 71. B angle block; 72. Fastening assembly;

[0036] 8. Positioning plate; 9. Pad;

[0037] 10. Supporting square tube; 101. Bottom plate; 102. Cover plate; 103. Positioning sleeve. DETAILED DESCRIPTION

[0038] The utility model is further described below in conjunction with embodiments and drawings.

[0039] like Figures 1 to 6 As shown, this embodiment provides a dual-station robot welding tool, including a driving device and a fixture assembly rotating with the driving device, and the fixture assembly is linked with an external welding robot;

[0040] The driving device includes a base 1 and two rotating arms 2 arranged relatively on the base 1. The clamp assembly can be disassembled between the two rotating arms 2. The rotating axis of the rotating arm 2 can be driven by a motor. In this embodiment, a motor is provided, and its output end is connected to the rotating axis of the right rotating arm.

[0041] The fixture assembly includes a support plate 41 and a support plate 6 connected by a positioning tube 5. The positioning tube 5 is a square tube and is located at the center of the support plate 41. The support plate 6 is connected to the lower end of the positioning tube 5 so that the supporting square tube 10 located on the support plate 6 is placed in parallel.

[0042] Vertical plates 61 are provided on both sides of the support plate 6, and reinforcing ribs are provided at the junction of the outer wall of the vertical plate 61 and the support plate 6. The inner wall of the vertical plate 61 is used to resist one side of the supporting square tube 10. Two clamping mechanisms are provided on the inner side of the vertical plate 61 along the placement direction of the supporting square tube 10. The clamping mechanism includes a B angle block 71 that can move toward the inner wall of the vertical plate 61. The outer wall of the B angle block 71 is used to resist the other side of the supporting square tube 10. A clamping area with an adjustable distance is formed between the inner wall of the vertical plate 61 and the outer wall of the B angle block 71, so that the supporting square tube 10 is clamped in the clamping area. In the present embodiment, a total of four clamping mechanisms are provided, and the two clamping mechanisms are symmetrically arranged with the positioning tube 5 as the center.

[0043] The clamping mechanism includes an angle pressing plate 7 and an A angle block 62 connected to the support plate 6. The A angle block 62 and the B angle block 71 are provided with a force-bearing surface inclined from outside to inside on the same side corresponding to each other, and a moving channel is formed between the two force-bearing surfaces. Both sides of the angle pressing plate 7 are provided with slopes corresponding to the force-bearing surfaces, and the B angle block 71 is moved by pressing down the angle pressing plate 7.

[0044] The clamping mechanism includes a fastening assembly 72 for controlling the position of the angle pressure plate 7. In the present embodiment, the fastening assembly 72 uses a stud bolt and two nuts. The lower end of the stud bolt is connected to the support plate 6 and fixed in position by a nut A. The upper end of the stud bolt passes through the middle of the angle pressure plate 7 and is connected to a nut B. The angle pressure plate 7 is pressed down by tightening the nut B. The nut B uses a shoulder nut.

[0045] A clamping portion for fixing the workpiece base plate 101 is provided on the side of the support plate 41 facing the support plate 6. There are two clamping portions, which are respectively located on the left and right sides of the support plate 41. The clamping portion includes a retaining plate 42 and a positioning platform 421 protruding outward on the retaining plate 42. The positioning platform 421 is used to support the inner cavity of the base plate 101. At least one positioning pin 422 is provided on the retaining plate 42 for passing through the through hole on the base plate 101 to prevent the base plate 101 from deviating and rotating. In the present embodiment, the positioning platform 421 is in a rhombus shape, and the upper and lower ends of the rhombus are both in an arc shape corresponding to the inner diameter of the base plate 101.

[0046] An end plate 4 is arranged on the other side of the support plate 41, and a clamping arm 21 is arranged on the rotating shaft of the left rotating arm. The clamping arm 21 and the end plate 4 are linked through a double-ear support seat. The double-ear support seat includes a driving part 3 and a plug-in part 31. A square through hole is provided in the center of the driving part 3, and conical through grooves are provided on both side ends thereof to cooperate with the clamping parts of the clamping arm 21 that can simultaneously retract inwards. The end plate 4 can be inserted into the plug-in part 31, and a plurality of threaded holes are provided on the part of the plug-in part 31 that intersects with the end plate 4. By tightening the bolts, the end of the bolts clamps the end plate 4. The clamping arm 21 is a prior art and will not be described here.

[0047] A centering clamping mechanism 22 is arranged on the rotating shaft of the right rotating arm, and the positioning tube 5 and the centering clamping mechanism 22 are linked by a connecting mechanism. The connecting mechanism includes a positioning disk 8 that can be sleeved on the end of the positioning tube 5 and a pad 9 that abuts against the end of the positioning tube 5. The positioning disk 8 is "convex" in shape, and a bolt is threadedly connected to the protruding sleeve of the positioning disk 8, and locking is achieved by tightening the bolt. In order to reduce the weight of the positioning disk 8 during installation and the inertia during rotation, a plurality of weight-reducing holes are arranged around the positioning disk 8, and the pad 9 is connected to the groove on the rear side of the positioning disk 8 by bolts, and is connected to the positioning tube 5 by bolts.

[0048] The working process of this example:

[0049] Install the clamp assembly between the two rotating arms 2;

[0050] Insert the end plate 4 into the plug-in portion 31 of the double-ear support seat, tighten the bolts to fasten the connection, align the tapered through grooves at both ends of the driving part 3 with the clamping parts of the clamping arms 21, and retract the clamping parts inward at the same time so that the clamping parts are engaged in the tapered through grooves to complete the connection of one end of the clamp assembly;

[0051] Install the connecting assembly on the rear end of the positioning tube 5, that is, put the positioning plate 8 on the rear end of the positioning tube 5, tighten the connection between the positioning plate 8 and the positioning tube 5 by tightening the bolts, place the pad 9 in the groove at the rear end of the positioning plate 8, and connect it to the positioning plate 8 and the rear end of the positioning tube 5 by bolts, clamp the positioning plate 8 with the centering clamping mechanism 22, and complete the connection at the other end of the clamp assembly.

[0052] Clamp the workpieces on the fixture assemblies respectively;

[0053] Align the through hole on the base plate 101 with the positioning pin 422, insert the inner cavity of the base plate 101 into the positioning platform 421, place the supporting square tube 10 on the support plate 6, and make its end close to the base plate 101, the inner wall of the vertical plate 61 abuts against the side wall of the supporting square tube 10, rotate the B nut in the fastening assembly 72, so that the angle pressure plate 7 presses the B angle block 71 downward, so that the B angle block 71 abuts against the other side wall of the supporting square tube 10, and the supporting square tube 10 is clamped.

[0054] The supporting square tube 10 is riveted to the bottom plate 101 , and a positioning sleeve 103 is riveted to the side wall of the supporting square tube 10 , and a cover plate 102 is riveted to the other end of the supporting square tube 10 .

[0055] Then, the external welding robot is linked with the fixture assembly on the driving device to weld the required welding points of the workpiece, namely, the intersection of the supporting square tube 10 and the base plate 101, the intersection of the supporting square tube 10 and the positioning sleeve 103, and the intersection of the supporting square tube 10 and the cover plate 102.

[0056] The above describes one or more embodiments of the utility model in detail, but the above contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model shall still fall within the scope of the patent coverage of the utility model.

Claims

1. A dual-station robot welding tool, characterized in that: It comprises a clamp assembly that can rotate with the driving device, and the supporting square tube (10) and the bottom plate (101) can be clamped on the clamp assembly; The clamp assembly comprises a support plate (6), on which a vertical plate (61) and a clamping mechanism are erected, wherein the clamping mechanism comprises a B angle block (71) movable toward the vertical plate (61), and a clamping area with an adjustable distance is formed between the inner wall of the vertical plate (61) and the outer wall of the B angle block (71), so that the supporting square tube (10) is clamped in the clamping area; The clamp assembly comprises a support plate (41), the support plate (41) being connected to the support plate (6) via a positioning tube (5), and a clamping portion for fixing the bottom plate (101) is provided on a side of the support plate (41) facing the support plate (6).

2. A dual-station robot welding tool according to claim 1, characterized in that: The clamping mechanism comprises an angle pressing plate (7) and an A angle block (62) connected to the support plate (6), and the B angle block (71) is moved by being squeezed by the angle pressing plate (7).

3. A dual-station robot welding tool according to claim 1, characterized in that: The clamping portion comprises a retaining plate (42) and a positioning platform (421) protruding outward from the retaining plate (42), and the positioning platform (421) supports the inner cavity of the bottom plate (101).

4. A dual-station robot welding tool according to claim 3, characterized in that: The clamping portion comprises a positioning pin (422) connected to the retaining plate (42) and used to pass through a through hole on the bottom plate (101), and at least one positioning pin (422) is provided.

5. The dual-station robot welding tool according to claim 2, characterized in that: The clamping mechanism comprises a fastening assembly (72) for controlling the position of the angle pressure plate (7), an inclined force-bearing surface is provided on the same side corresponding to the A angle block (62) and the B angle block (71), a moving channel is formed between the two force-bearing surfaces, and slopes corresponding to the force-bearing surfaces are provided on both sides of the angle pressure plate (7).

6. The dual-station robot welding tool according to claim 1, characterized in that: The driving device comprises a base (1) and two rotating arms (2) arranged relatively on the base (1), and the clamp assembly can be detached between the two rotating arms (2).

7. A dual-station robot welding tool according to claim 6, characterized in that: An end plate (4) is arranged on the other side of the support plate (41), and a clamping arm (21) is arranged on one side of the rotating arm (2). The clamping arm (21) and the end plate (4) are linked via a double-ear support seat.

8. The dual-station robot welding tool according to claim 7, characterized in that: A centering clamping mechanism (22) is provided on the rotating arm (2) on the other side, and the positioning tube (5) and the centering clamping mechanism (22) are linked via a connecting mechanism.

9. A dual-station robot welding tool according to any one of claims 1 to 8, characterized in that: The fixture assembly is linked with the welding robot.

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