Laser welding clamp

Abstract

The utility model belongs to the technical field of laser welding, and particularly relates to a laser welding clamp which comprises a base. The top end of the base is fixedly connected with a pair of supporting plates. Hollow columns are rotationally connected to the opposite inner walls of the pair of supporting plates, and one ends of the hollow columns penetrate through the supporting plates and are flush with the outer sides of the supporting plates; fixing blocks are fixedly connected to the inner circular walls of the pair of hollow columns; semi-arc placing plates are fixedly connected to the top ends of the pair of fixing blocks; and rotating shafts are rotationally connected to the outer circular walls of the pair of hollow columns correspondingly, and one ends of the rotating shafts penetrate through the hollow columns, so that the defects in the prior art are overcome, and the problems that when some tubular objects are clamped, a clamp cannot be adjusted, only tubular objects of one size can be clamped, and the clamping efficiency is high are solved. And the problem that tubular objects with different sizes cannot be clamped is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser welding, in particular to a laser welding fixture. Background Art

[0002] Laser welding is one of the welding methods. Welding is to weld two identical objects together and connect them from the ports. When welding two objects, it is generally necessary to clamp and fix the two objects in the same way to keep the objects stable during the welding process and improve the welding accuracy.

[0003] In the prior art, general welding fixtures are used to fix some flat objects. When clamping some tubular objects, the fixture cannot be adjusted and can only clamp tubular objects of one size. It is impossible to clamp tubular objects of different sizes. It is necessary to produce welding fixtures of different sizes, which increases the cost and reduces the welding efficiency.

[0004] To this end, the utility model provides a laser welding fixture. Utility Model Content

[0005] In order to make up for the shortcomings of the existing technology and solve the problem that general welding fixtures are used to fix items such as flat plates, when clamping some tubular items, the fixture cannot be adjusted and can only clamp tubular items of one size, but cannot clamp tubular items of different sizes. It is necessary to produce welding fixtures of different sizes, which increases costs and reduces welding efficiency.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a laser welding fixture described in the utility model includes a base; a pair of support plates are fixedly connected to the top of the base; a pair of hollow columns are rotatably connected to the relative inner walls of the support plates, and one end of the hollow columns penetrates the support plates and is flush with the outer side of the support plates; a pair of fixed blocks are fixed to the inner circular walls of the hollow columns; a pair of semi-arc placement plates are fixed to the tops of the fixed blocks; a pair of rotating shafts are rotatably connected to the outer circular walls of the hollow columns, and one end of the rotating shaft penetrates the hollow columns; a pair of screws are screwed inside the rotating shafts The groove is connected with a connecting rod, and one end of the connecting rod passes through the rotating shaft and is fixedly connected with a semi-arc clamping plate; a pair of sliding rods are slidably connected to the outer circular walls of the hollow columns through sliding holes; the bottom ends of the pair of sliding rods are fixedly connected to the top of the semi-arc clamping plate; a pair of first fixing rods are fixedly connected to the outer circular walls of one end of the hollow columns; a pair of first fixing rods are fixedly connected to the top ends; a group of tooth grooves are fixedly connected to the outer circular walls of the pair of rings; a group of supporting legs are fixedly connected to the bottom end of the base; a power piece is provided on the outer side of one of the pair of supporting plates; the power piece is used to drive the rotation of the hollow column.

[0007] Preferably, the power part includes a motor; the motor is fixedly connected to one side of the support plate through a second fixed rod; a rotating rod is rotatably connected between the relative inner walls of a pair of support plates, and both ends of the rotating rod pass through the support plates; the output end of the motor is arranged at one end of the rotating rod; a pair of gears are fixedly connected to the portion of the rotating rod that does not pass through the support plate; the pair of gears are meshed with the tooth grooves on the outer circular walls of a pair of circular rings.

[0008] Preferably, the base is provided with a first groove downwardly; a pair of first through grooves are provided downwardly inside the base; a second groove is provided on one side inside the base; a threaded rod is rotatably connected to the inner wall of the second groove, and one end of the threaded rod passes through the base and extends to the outside of the base; a crossbeam is threadedly connected to the threaded rod, and the other end of the crossbeam is slidably connected to the other side of the base; a brush is fixedly connected to the bottom end of the crossbeam; and a transmission member is provided on one side of the base.

[0009] Preferably, the transmission member includes a first sprocket; the first sprocket is fixedly connected to the other end of the rotating rod; a second sprocket is fixedly connected to one end of the threaded rod; the first sprocket and the second sprocket are connected by chain transmission.

[0010] Preferably, a group of through holes are opened downwardly at the bottom end of the base.

[0011] Preferably, rubber pads are provided at the bottom ends of the supporting legs.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The laser welding fixture described in the utility model is that the staff puts the tubular objects to be welded on the semi-arc placement plate from both sides of the outside of the support plate at the same time, and then pushes the tubular object inward to make the ends of the two objects butt, and then rotates the rotating shaft to make the connecting rod drive the semi-arc clamping plate to move downward, so that the semi-arc clamping plate is attached to the tubular object, and then clamps it to fix it. A pair of sliding rods are set to prevent the semi-arc clamping plate from following the rotation and causing it to be unable to move downward.

[0014] 2. The laser welding fixture described in the utility model drives a rotating rod through a motor so that the rotating rod can rotate in a supporting plate. When the rotating rod rotates, a pair of gears on the rotating rod will drive the meshing teeth to drive the hollow column to rotate, so that the hollow column drives the fixed tubular object to rotate. In this way, welding can be performed while rotating, making laser welding more convenient, faster and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a front cross-sectional view of the utility model;

[0018] Figure 3 It is a side sectional view of the utility model;

[0019] Figure 4 yes Figure 3 A magnified view of middle;

[0020] Figure 5 It is a partial diagram of the utility model;

[0021] In the figure: 1. base; 2. support plate; 4. hollow column; 5. fixed block; 6. semi-arc placement plate; 7. rotating shaft; 8. connecting rod; 9. semi-arc clamping plate; 10. sliding rod; 11. first fixed rod; 12. circular ring; 13. tooth groove; 14. supporting leg; 15. motor; 16. second fixed rod; 17. rotating rod; 18. gear; 19. first groove; 20. second groove; 21. threaded rod; 22. crossbeam; 23. brush; 24. first sprocket; 25. second sprocket; 26. chain; 27. through hole; 28. first through groove. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figures 1 to 5As shown, a laser welding fixture described in an embodiment of the utility model comprises a base 1; a pair of support plates 2 are fixedly connected to the top of the base 1; a pair of hollow columns 4 are rotatably connected to the relative inner walls of the support plates 2, and one end of the hollow columns 4 passes through the support plates 2 and is flush with the outer side of the support plates 2; a pair of fixing blocks 5 are fixedly connected to the inner circular walls of the hollow columns 4; a pair of semi-arc placing plates 6 are fixedly connected to the tops of the fixing blocks 5; a pair of rotating shafts 7 are rotatably connected to the outer circular walls of the hollow columns 4, and one end of the rotating shaft 7 passes through the hollow columns 4; a pair of connecting rods 8 are threadedly connected to the inside of the rotating shafts 7, and one end of the connecting rod 8 passes through the rotating shaft 7 and is fixedly connected to a semi-arc clamping plate 9; a pair of sliding rods 10 are slidably connected to the outer circular walls of the hollow columns 4 through sliding holes; the bottom ends of the pair of sliding rods 10 are fixedly connected to the tops of the semi-arc clamping plates 9; A pair of first fixing rods 11 are fixedly connected to the outer circular wall at one end of the hollow columns 4; a pair of first fixing rods 11 are fixedly connected to the top ends with a circular ring 12; a pair of outer circular walls of the circular rings 12 are fixedly connected with a group of tooth grooves 13; a group of supporting legs 14 are fixedly connected to the bottom end of the base 1; a power piece is provided on the outer side of one of the pair of supporting plates 2; the power piece is used to drive the rotation of the hollow columns 4. During operation, the staff will place the tubular objects to be welded on the semi-arc placing plate 6 from both sides of the outside of the supporting plate 2 at the same time, and then push the tubular object inward to make the ends of the two objects butt joint, and then rotate the rotating shaft 7 to make the connecting rod 8 drive the semi-arc clamping plate 9 to move downward, so that the semi-arc clamping plate 9 is close to the tubular object, and then clamp it to fix it. A pair of sliding rods 10 are provided to prevent the semi-arc clamping plate 9 from following the rotation, which makes it impossible to move downward.

[0024] The power part includes a motor 15; the motor 15 is fixedly connected to one side of the support plate 2 through a second fixed rod 16; a pair of rotating rods 17 are rotatably connected between the relative inner walls of a pair of support plates 2, and both ends of the rotating rods 17 pass through the support plate 2; the output end of the motor 15 is arranged at one end of the rotating rod 17; a pair of gears 18 are fixedly connected to the part where the rotating rod 17 does not pass through the support plate 2; a pair of the gears 18 are meshed with the tooth grooves 13 on the outer circular walls of a pair of circular rings 12. When working, the rotating rod 17 is driven by the motor 15 so that the rotating rod 17 can rotate in the support plate 2. When the rotating rod 17 rotates, the pair of gears 18 on the rotating rod 17 will drive the meshing tooth grooves 13, thereby driving the hollow column 4 to rotate, so that the hollow column 4 drives the fixed tubular object to rotate, so that welding is performed while rotating, making laser welding more convenient, faster and more efficient.

[0025] The base 1 is provided with a first groove 19 downward; a pair of first through grooves 28 are provided downward inside the base 1; a second groove 20 is provided on one side inside the base 1; a threaded rod 21 is rotatably connected to the inner wall of the second groove 20, and one end of the threaded rod 21 passes through the base 1 and extends to the outside of the base 1; a crossbeam 22 is threadedly connected to the threaded rod 21, and the other end of the crossbeam 22 is slidably connected to the other side of the base 1; a brush 23 is fixedly connected to the bottom end of the crossbeam 22; a transmission member is provided on one side of the base 1, and when working, the threaded rod 21 is driven by the transmission member to rotate, and when the threaded rod 21 rotates, the crossbeam 22 can move back and forth on the threaded rod 21, so that the brush 23 at the bottom end of the crossbeam 22 can clean the residue dropped due to welding, and clean the residue into the first through groove 28.

[0026] The transmission member includes a first sprocket 24; the first sprocket 24 is fixedly connected to the other end of the rotating rod 17; a second sprocket 25 is fixedly connected to one end of the threaded rod 21; the first sprocket 24 and the second sprocket 25 are connected by a chain 26. When working, the first sprocket 24 on the rotating rod 17 drives the second sprocket 25 to drive the threaded rod 21 to drive the crossbeam 22 to move normally.

[0027] A group of through holes 27 are opened downward at the bottom of the base 1. During operation, when welding residues dropped during welding fall into the base 1, part of the residues will directly fall from the drop holes to the outside of the device.

[0028] The bottom ends of the supporting legs 14 are all provided with rubber pads. When working, the rubber pads at the bottom can reduce vibration of the machine to avoid loosening of the fixing device due to some vibration, causing welding problems and insufficient welding density.

[0029] Working principle: the staff will place the tubular objects to be welded on the semi-arc placement plate 6 from both sides of the outside of the support plate 2 at the same time, and then push the tubular object inward to make the ends of the two objects butt, and then rotate the rotating shaft 7 to make the connecting rod 8 drive the semi-arc clamping plate 9 to move downward, so that the semi-arc clamping plate 9 is close to the tubular object, and then clamp it to fix it. In order to prevent the semi-arc clamping plate 9 from following the rotation and causing it to be unable to move downward, a pair of sliding rods 10 are provided to drive the rotating rod 17 through the motor 15 so that the rotating rod 17 can rotate in the support plate 2. When the rotating rod 17 rotates, a pair of gears 18 on the rotating rod 17 will drive the meshing tooth grooves 13 to drive the hollow column 4 to rotate, so that the hollow column 4 drives the fixed tubular object to rotate, so that welding is carried out while rotating. The laser welding is more convenient, faster and more efficient. The threaded rod 21 is driven by the transmission part to rotate. When the threaded rod 21 rotates, the cross beam 22 can move back and forth on the threaded rod 21, so that the brush 23 at the bottom of the cross beam 22 can clean the residue dropped due to welding, and clean the residue into the first through groove 28. The second sprocket 25 is driven by the first sprocket 24 on the rotating rod 17. When the welding residue dropped during welding falls into the inside of the base 1, a part of the residue may directly fall from the drop hole to the outside of the device. The rubber pad at the bottom can reduce the vibration of the machine to avoid loosening of the fixing device due to some vibration reasons, which may cause problems in welding and insufficient welding density.

[0030] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A laser welding fixture, characterized in that: The invention comprises a base (1); a pair of support plates (2) are fixedly connected to the top of the base (1); a pair of hollow columns (4) are rotatably connected to the inner walls of the pair of support plates (2), and one end of the hollow columns (4) passes through the support plates (2) and is flush with the outer side of the support plates (2); a pair of fixed blocks (5) are fixedly connected to the inner circular walls of the pair of hollow columns (4); a pair of semi-arc-shaped placement plates (6) are fixedly connected to the tops of the pair of fixed blocks (5); a pair of rotating shafts (7) are rotatably connected to the outer circular walls of the pair of hollow columns (4), and one end of the rotating shaft (7) passes through the hollow columns (4); a pair of connecting rods (8) are threadedly connected to the inside of the pair of rotating shafts (7), and one end of the connecting rod (8) passes through the rotating shafts (7), and is fixedly connected with a semi-arc clamping plate (9); a pair of the outer circular walls of the hollow columns (4) are slidably connected with sliding rods (10) through sliding holes; the bottom ends of the pair of sliding rods (10) are fixedly connected to the top of the semi-arc clamping plate (9); a pair of first fixing rods (11) are fixedly connected to the outer circular walls of one end of the hollow columns (4); a pair of the top ends of the first fixing rods (11) are fixedly connected with a circular ring (12); a pair of the outer circular walls of the circular rings (12) are fixedly connected with a group of tooth grooves (13); a group of supporting legs (14) are fixedly connected to the bottom end of the base (1); a power piece is provided on the outer side of one of the pair of support plates (2); the power piece is used to drive the rotation of the hollow column (4).

2. A laser welding fixture according to claim 1, characterized in that: The power component comprises a motor (15); the motor (15) is fixedly connected to one side of the support plate (2) via a second fixing rod (16); a pair of relative inner walls of the support plates (2) are rotatably connected with a rotating rod (17), and both ends of the rotating rod (17) penetrate the support plate (2); the output end of the motor (15) is arranged at one end of the rotating rod (17); a pair of gears (18) are fixedly connected to the portion of the rotating rod (17) that does not penetrate the support plate (2); the pair of gears (18) are meshed with tooth grooves (13) on the outer circular walls of a pair of circular rings (12).

3. A laser welding fixture according to claim 2, characterized in that: The base (1) is provided with a first groove (19) downward; a pair of first through grooves (28) are provided downward inside the base (1); a second groove (20) is provided on one side inside the base (1); a threaded rod (21) is rotatably connected to the inner wall of the second groove (20), and one end of the threaded rod (21) passes through the base (1) and extends to the outside of the base (1); a crossbeam (22) is threadedly connected to the threaded rod (21), and the other end of the crossbeam (22) is slidably connected to the other side of the base (1); a brush (23) is fixedly connected to the bottom end of the crossbeam (22); and a transmission member is provided on one side of the base (1).

4. A laser welding fixture according to claim 3, characterized in that: The transmission member comprises a first sprocket (24); the first sprocket (24) is fixedly connected to the other end of the rotating rod (17); a second sprocket (25) is fixedly connected to one end of the threaded rod (21); the first sprocket (24) and the second sprocket (25) are connected by a chain (26).

5. A laser welding fixture according to claim 4, characterized in that: A group of through holes (27) are formed downwardly at the bottom of the base (1).

6. A laser welding fixture according to claim 5, characterized in that: The bottom ends of the supporting legs (14) are each provided with a rubber pad.

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