Clamping device for robot welding of pipe fittings or rod fittings
By designing a clamping device for pipe fittings or rod parts, the synchronous alignment and stable clamping of parts are achieved by using the driving component and the cylinder system, the problem of insufficient alignment and stability in the prior art is solved and the welding accuracy is improved.
Patent Information
- Application Number
- CN202421198083.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-05-29
AI Technical Summary
In the prior art During the robot welding process, the cylinder clamping method leads to poor alignment and stability of the parts on both sides, affecting the welding quality.
A clamping device is designed to drive the connecting plate movement through the driving component, and synchronously move the push plate and the side clamp to ensure the alignment of the parts; at the same time, the cylinders on the horizontal plate drive the upper clamp and the side clamp to tighten and clamp the parts to improve the stability of the fixing.
High synchronous alignment and stable clamping of parts are achieved, improving welding accuracy and quality.
Smart Images
Figure CN222552652U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of clamps, in particular to a clamping device used for robot welding of pipes or rods. Background Art
[0002] After the production of pipe parts or rod parts, their length is limited for the convenience of transportation or storage. In some special use scenarios, longer pipes or rods are required, so two or more such parts need to be welded. In robot welding, the two pipes or rods need to be aligned, clamped and fixed before welding.
[0003] The prior art generally adopts a cylinder clamping method, specifically using two pairs of cylinders to drive push plates to clamp the tubes or rods on both sides of the welding point. However, after working for a long time, errors may occur in the synchronization of the cylinders on both sides, resulting in poor alignment of the fixed parts on both sides, affecting the processing quality. Moreover, the force points of the prior art clamping are mainly concentrated on both sides of the tube or rod, with poor stability. Once it moves during the welding process, it will affect the processing quality. Utility Model Content
[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a clamping device for robot welding of pipe fittings or rods, which drives the connecting plate to move through a driving assembly, so that the push plates on both sides of the welding point drive the side clamping plates to move simultaneously with good synchronization, thereby ensuring the alignment of the parts on both sides. The cylinder on the horizontal plate drives the upper clamping plate to press the parts, and the side clamping plates clamp the parts, thereby ensuring the stability of the fixation and the welding accuracy.
[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a clamping device for robot welding of pipe fittings or rods, comprising a workbench, a driving assembly, a pair of connecting plates, two pairs of push plates, a pair of cross plates and a pair of vertical clamping assemblies, a processing space opening is opened at the center of the workbench, and the two pairs of push plates are respectively arranged on the workbench on the left and right sides of the processing space opening, each pair of push plates are designed in the same vertical plane and are respectively slidably connected with the upper surface of the workbench in the front and rear directions, the outer ends of the push plates on the left and right sides of the workbench are fixedly connected by connecting plates, and the inner ends are respectively provided with side clamping plates, the driving assembly is arranged on the workbench, and the moving end of the driving assembly can drive the connecting plates on the front and rear sides of the workbench to move toward or away from each other at the same time; a limiting plate is fixedly arranged at the center position of the push plate, and a limiting hole is opened at the same height as the limiting plate and the side clamping plate, and the cross plate slides through the limiting hole, a pair of vertical clamping assemblies are respectively arranged at the center positions of the cross plates on the left and right sides of the workbench, and the vertical clamping assembly can press the pipe fittings or rods on the workbench.
[0006] Preferably, the vertical clamping assembly includes a cylinder and an upper clamping plate, wherein the cylinder is fixedly arranged at the center of the horizontal plate, and the telescopic end penetrates to the bottom of the horizontal plate and is fixedly connected to the upper clamping plate.
[0007] Preferably, a mounting plate is provided on the upper surface of the push plate close to the outer end, and springs are provided between the two ends of the transverse plate and the inner side wall of the mounting plate.
[0008] Preferably, the driving assembly includes a motor with dual output ends, a pair of threaded rods with opposite thread directions, a pair of threaded blocks and a fixed seat, the motor is fixedly arranged at the bottom of the processing space opening of the workbench, the fixed seat is fixedly arranged on the front and rear side walls of the workbench, one end of a pair of threaded rods are respectively connected to the output ends on both sides of the motor, and the other end is rotatably connected to the side walls of the fixed seat, threaded holes are opened on a pair of threaded blocks, and they are respectively screwed onto the threaded rods on both sides through the threaded holes, a fixing plate is fixedly connected to the threaded block, and the fixing plate is fixedly connected to the center position of the connecting plate.
[0009] Preferably, the bottom of the upper clamping plate and the workbench are provided with V-shaped grooves along the axial direction of the pipe or rod.
[0010] Preferably, a slide bar is provided at the bottom of the push plate, and a slide groove is provided on the workbench at a position corresponding to the slide bar, and the slide bar is slidably connected to the slide groove.
[0011] Preferably, rubber pads are provided on the bottom of the upper clamping plate and the side walls of the side clamping plates.
[0012] The utility model provides a clamping device for robot welding of pipes or rods, which has the following beneficial effects:
[0013] 1. The utility model drives the connecting plate to move through the driving assembly, so that the push plates on both sides of the welding point drive the side clamping plates to move at the same time, with good synchronization, ensuring the alignment of the parts on both sides. The cylinder on the horizontal plate drives the upper clamping plate to press the parts, and the side clamping plates clamp the parts, ensuring the stability of the fixation and the welding accuracy;
[0014] 2. In the utility model, V-shaped grooves are provided on the bottom of the upper splint and the workbench along the axial direction of the part, which have a certain limit on the part and can increase the contact points with the surface of the part, so that the fixation is more secure. In addition, rubber pads can also be provided on the bottom of the upper splint, the side walls of the side splints and the surface of the workbench, which can increase the friction between the parts on the one hand and avoid scratching the parts when fixing on the other hand. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a top view of a clamping device for robot welding of pipes or bars according to the utility model;
[0016] Figure 2 For this utility model Figure 1 Left side cross-sectional view in ;
[0017] Figure 3 For this utility model Figure 2 Schematic diagram of the local section.
[0018] In the figure: 1. fixed seat; 2. spring; 3. limit plate; 4. side clamp; 5. upper clamp; 6. processing space opening; 7. threaded rod; 8. threaded block; 9. push plate; 10. workbench; 11. parts; 12. cylinder; 13. motor; 14. cross plate; 15. mounting plate; 16. connecting plate; 17. fixed plate; 18. slide bar; 19. slide groove; 20. limit hole; 21. V-groove. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] like Figure 1-3As shown, a clamping device for robot welding of pipe fittings or rods includes a workbench 10, a driving assembly, a pair of connecting plates 16, two pairs of push plates 9, a pair of horizontal plates 14 and a pair of vertical clamping assemblies. A processing space opening 6 is opened at the center of the workbench 10. Two pairs of push plates 9 are respectively arranged on the workbench 10 on the left and right sides of the processing space opening 6. Each pair of push plates 9 is designed to be in the same vertical plane and are respectively slidably connected to the upper surface of the workbench 10 in the front and rear directions. The outer ends of the push plates 9 on the left and right sides of the workbench 10 are fixedly connected by the connecting plate 16, and the inner ends are respectively provided with side clamping plates 4. The assembly is arranged on the workbench 10, and the moving end of the driving assembly can drive the connecting plates 16 on the front and rear sides of the workbench 10 to move toward or away from each other at the same time; a limit plate 3 is fixedly arranged at the center position on the push plate 9, and a limit hole 20 is provided at the same height as the limit plate 3 and the side clamping plate 4, and the cross plate 14 slides through the limit hole 20, and a pair of vertical clamping assemblies are respectively arranged at the center positions of the cross plates 14 on the left and right sides of the workbench 10, and the vertical clamping assemblies can clamp the pipe or rod on the workbench 10; the vertical clamping assembly includes a cylinder 12 and an upper clamping plate 5, and the cylinder 12 is fixedly arranged The center position of the horizontal plate 14, the telescopic end penetrates to the bottom of the horizontal plate 14 and is fixedly connected to the upper clamping plate 5; the upper surface of the push plate 9 near the outer end is provided with a mounting plate 15, and a spring 2 is provided between the two ends of the horizontal plate 14 and the inner wall of the mounting plate 15; the driving assembly includes a motor 13 with double output ends, a pair of threaded rods 7 with opposite thread directions, a pair of threaded blocks 8 and a fixed seat 1, the motor 13 is fixedly set at the bottom of the processing space opening 6 of the workbench 10, the fixed seat 1 is fixedly set at the front and rear side walls of the workbench 10, one end of a pair of threaded rods 7 is respectively connected to the output ends on both sides of the motor 13, and the other end is connected to the output ends on both sides of the motor 13. One end is rotatably connected to the side wall of the fixed seat 1, and a pair of threaded blocks 8 are provided with threaded holes, and are respectively screwed to the threaded rods 7 on both sides through the threaded holes. A fixed plate 17 is fixedly connected to the threaded block 8, and the fixed plate 17 is fixedly connected to the center position of the connecting plate 16; a V-shaped groove 21 is provided at the bottom of the upper clamping plate 5 and the workbench 10 along the axial direction of the pipe or rod; a sliding bar 18 is provided at the bottom of the push plate 9, and a sliding groove 19 is provided at a position corresponding to the sliding bar 18 on the workbench 10, and the sliding bar 18 is slidably connected to the sliding groove 19; rubber pads are provided at the bottom of the upper clamping plate 5 and the side wall of the side clamping plate 4.
[0021] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process, which are as follows:
[0022] According to the instruction manual Figure 1-3It can be seen that when the present invention is used, personnel insert two pipe fittings or rods (hereinafter referred to as parts 11) from the center positions on both sides of the workbench 10 until the two joints are abutted, and try to make them in the middle position above the processing space opening 6 of the workbench 10, so as to facilitate the subsequent robot welding. The processing space opening 6 is to leave enough space for the robot operation; after the part 11 is inserted, the drive assembly is started to drive the connecting plates 16 on the front and rear sides of the workbench 10 to move inward at the same time, thereby driving the push plate 9 and the side clamping plate 4 at the inner end of the push plate 9 to clamp the front and rear positions of the part 11 at the same time, and then the part 11 is clamped by the vertical clamping assembly at the center position on the cross plate 14. The cross plate 14 can slide in the limiting holes 20 of the limiting plate 3 and the side clamping plate 4 on the push plate 9, so the horizontal position of the vertical clamping assembly can be adjusted to ensure that it is directly above the part 11 and accurately clamps it. Compared with the prior art, the utility model drives the connecting plates 16 on the front and rear sides of the workbench 10 to move simultaneously through the driving assembly, and the two connecting plates 16 drive the push plates 9 and the side clamping plates 4 on the left and right sides of the workbench 10 to move simultaneously, and clamp the parts 11 at the same time, with good synchronization, ensuring the alignment of the two parts 11, the vertical clamping assembly on the cross plate 14 can clamp the parts 11, and cooperate with the side clamping plates 4 to clamp the parts 11, and tighten and fix the parts 11 at multiple angles to ensure the stability of the fixation, thereby ensuring the welding accuracy.
[0023] The vertical clamping assembly includes a cylinder 12 and an upper clamping plate 5. The cylinder 12 is fixedly arranged at the center of the horizontal plate 14, and the telescopic end penetrates the bottom of the horizontal plate 14 and is fixedly connected to the upper clamping plate 5. During operation, a person can slide the horizontal plate 14 in the forward and backward directions to align the upper clamping plate 5 directly above the part 11, and start the cylinder 12. The telescopic end of the cylinder 12 extends to allow the upper clamping plate 5 to clamp and fix the part 11.
[0024] Among them, a mounting plate 15 is provided on the upper surface of the push plate 9 near the outer end, and a spring 2 is provided between the two ends of the horizontal plate 14 and the inner wall of the mounting plate 15. The principle of this design is to allow the vertical clamping assembly to be in the center position under the action of the springs 2 on both sides. Of course, when it is in a static state, the design of the spring 2 must have sufficient displacement to ensure that it will not affect the movement of the push plate 9.
[0025] The driving assembly includes a motor 13 with dual output ends, a pair of threaded rods 7 with opposite thread directions, a pair of threaded blocks 8 and a fixed seat 1. The motor 13 is fixedly arranged at the bottom of the processing space opening 6 of the workbench 10, and the fixed seat 1 is fixedly arranged at the front and rear side walls of the workbench 10. One end of the pair of threaded rods 7 is respectively connected to the output ends on both sides of the motor 13, and the other end is rotatably connected to the side wall of the fixed seat 1. During operation, the output end of the motor 13 rotates to drive the threaded rod 7 to rotate. Since the thread directions are opposite, the threaded blocks 8 are respectively screwed to the threaded rods 7 on both sides through threaded holes, and the threaded blocks 8 are fixedly connected through the fixing plate 17 and the connecting plate 16, and will not rotate. Therefore, the rotation of the threaded rod 7 can make the threaded blocks 8 move inward or outward at the same time, thereby driving the connecting plate 16, the push plate 9 and the side clamping plate 4 to move, and clamp the part 11. This method has strong synchronization and simple structure.
[0026] Among them, the bottom of the upper clamping plate 5 and the workbench 10 are provided with a V-shaped groove 21 along the axial direction of the pipe or rod. The V-shaped groove 21 has a certain limit on the part 11 and can increase the contact points with the surface of the part 11, so that the fixation is more firm. In addition, rubber pads can also be provided on the bottom of the upper clamping plate 5, the side wall of the side clamping plate 4 and the surface of the workbench 10, on the one hand, to increase the friction between the part 11 and on the other hand, to avoid scratching the part 11 during fixation.
[0027] Among them, a slide bar 18 is opened at the bottom of the push plate 9, and a slide groove 19 is opened on the workbench 10 at a position corresponding to the slide bar 18. The slide bar 18 and the slide groove 19 are slidably connected to ensure the sliding stability of the push plate 9 during work.
[0028] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A clamping device for robot welding of pipes or bars, characterized in that: The invention comprises a workbench (10), a driving assembly, a pair of connecting plates (16), two pairs of push plates (9), a pair of transverse plates (14) and a pair of vertical clamping assemblies. A processing space opening (6) is opened at the center of the workbench (10). The two pairs of push plates (9) are respectively arranged on the workbench (10) on the left and right sides of the processing space opening (6). Each pair of push plates (9) is designed in the same vertical plane and is respectively connected to the upper surface of the workbench (10) in a sliding manner in the front-rear direction. The outer ends of the push plates (9) on the left and right sides of the workbench (10) are fixedly connected by the connecting plates (16), and the inner ends are respectively provided with side clamps (4 ), the driving component is arranged on the workbench (10), and the moving end of the driving component can drive the connecting plates (16) on the front and rear sides of the workbench (10) to move towards or away from each other at the same time; a limit plate (3) is fixedly arranged at the center position on the push plate (9), and a limit hole (20) is provided at the same height as the limit plate (3) and the side clamping plate (4), and the cross plate (14) slides through the limit hole (20), and a pair of vertical clamping components are respectively arranged at the center positions of the cross plates (14) on the left and right sides of the workbench (10), and the vertical clamping components can clamp the pipe or rod on the workbench (10).
2. A clamping device for robot welding of pipes or bars according to claim 1, characterized in that: The vertical clamping assembly comprises a cylinder (12) and an upper clamping plate (5); the cylinder (12) is fixedly arranged at the center of the transverse plate (14); the telescopic end penetrates to the bottom of the transverse plate (14) and is fixedly connected to the upper clamping plate (5).
3. A clamping device for robot welding of pipes or bars according to claim 1, characterized in that: A mounting plate (15) is provided on the upper surface of the push plate (9) close to the outer end, and a spring (2) is provided between the two ends of the transverse plate (14) and the inner wall of the mounting plate (15).
4. A clamping device for robot welding of pipes or bars according to claim 1, characterized in that: The driving assembly comprises a motor (13) with dual output ends, a pair of threaded rods (7) with opposite thread directions, a pair of threaded blocks (8) and a fixed seat (1); the motor (13) is fixedly arranged at the bottom of a processing space opening (6) of a workbench (10); the fixed seat (1) is fixedly arranged on the front and rear side walls of the workbench (10); one end of the pair of threaded rods (7) is respectively connected to the output ends on both sides of the motor (13); the other end is rotatably connected to the side wall of the fixed seat (1); threaded holes are provided on the pair of threaded blocks (8) and are respectively screwed to the threaded rods (7) on both sides through the threaded holes; a fixing plate (17) is fixedly connected to the threaded block (8); and the fixing plate (17) is fixedly connected to the center position of the connecting plate (16).
5. A clamping device for robot welding of pipes or bars according to claim 2, characterized in that: The bottom of the upper clamping plate (5) and the workbench (10) are provided with a V-shaped groove (21) along the axial direction of the pipe or rod.
6. A clamping device for robot welding of pipes or bars according to claim 1, characterized in that: A slide bar (18) is provided at the bottom of the push plate (9), and a slide groove (19) is provided on the workbench (10) at a position corresponding to the slide bar (18), and the slide bar (18) is slidably connected to the slide groove (19).
7. A clamping device for robot welding of pipes or bars according to claim 2, characterized in that: The bottom of the upper clamping plate (5) and the side walls of the side clamping plates (4) are provided with rubber pads.