Square tube edge sealing laser welding machine tool clamp and laser welding machine

Abstract

The utility model discloses a square tube edge sealing laser welding machine work fixture which comprises a vertical support, an upper clamping cross rod, a lower supporting cross rod and a plurality of clamping stations, the upper clamping cross rod and the lower supporting cross rod are erected on the support, the clamping stations are arranged on the upper clamping cross rod, and fixing corner connectors enabling square tubes to be vertically placed and clamping plates capable of stretching out and drawing back relative to the fixing corner connectors are arranged on the clamping stations. The clamping plates are connected with telescopic devices, and the telescopic devices drive the clamping plates to clamp the square tubes towards the fixing corner connectors. The square tube edge sealing laser welding machine comprises a welding machine base, a sliding rail, a welding arm and a laser welding gun, and further comprises a square tube edge sealing laser welding machine tool clamp, and the laser welding gun is vertically arranged above the clamp. By machining the square tube which is vertically clamped and placed, laser welding can be carried out on one face of the square tube at the same time, a plurality of square tubes can be placed, and therefore the steps of re-clamping and re-debugging can be reduced, and production efficiency and quality are greatly improved. And square pipes with different lengths and thicknesses can be clamped and machined, and the application range of the clamp is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding fixtures, in particular to a square tube edge sealing laser welding machine tooling fixture and a laser welding machine. Background Art

[0002] The fixture of the square tube edge banding laser welding machine is mainly used to clamp and fix the workpiece to be welded during the laser welding process to ensure that the welding process can be carried out stably and efficiently. In specific applications such as square tube edge banding, the accuracy and stability of the fixture have a great influence on the quality of laser welding.

[0003] In recent years, with the rapid development of laser welding technology, domestic research on laser welding fixtures has continued to deepen. Researchers are committed to improving the accuracy, stability and automation of fixtures to meet the high requirements of laser welding quality in different industries. Combined with the rapid development of artificial intelligence robots and automation technology, laser welding fixtures will be more intelligent. By introducing advanced sensors and data analysis algorithms, fixtures can realize automatic welding of part shapes, adjust welding parameters, and automatically correct weld deviations, thereby improving laser welding efficiency and quality.

[0004] The primary task of the square tube edge banding fixture is to ensure that the square tube can maintain a precise position and a stable support state during the laser welding process, which helps to avoid possible displacement during the welding process, thereby ensuring the accuracy and quality of the welding. By using a special fixture, precise control of the welding process can be achieved. The use of fixtures can reduce the chance of reprocessing and improve production efficiency. The design of the fixture also needs to take into account the safety of the operator. By providing stability, reliability and fixation, the risk of the operator in the automatic welding process can be reduced. At the same time, the convenience of the fixture can also improve the efficiency of the operator.

[0005] By comparing with the central control rotating axis square tube clamp on the market, it is necessary to adjust the rotating axis to the next position for each welding of one side, and weld one side at a time, for a total of four sides. After welding one side, it is taken out and welded to the other side, which has low welding efficiency. Laser welding requires very precise positioning of the weldment, and within the focusing range of the laser beam, manual debugging is required for welding each side, which may cause the workpiece to deviate from the welding position, resulting in deviations, welding errors, and poor welding accuracy. Summary of the invention

[0006] In view of this, the purpose of the utility model is to solve the above-mentioned technical problems and provide a square tube edge sealing laser welding machine fixture and a laser welding machine.

[0007] In order to solve the above technical problems, the technical solution of the utility model is: a square tube edge banding laser welding machine tooling fixture, including a bracket erected in front of the laser welding machine, an upper clamping cross bar and a lower supporting cross bar erected on the bracket, and a plurality of clamping stations arranged on the upper clamping cross bar, the clamping station is provided with a fixed angle code for vertically placing the square tube and a clamping plate that can be extended and retracted relative to the fixed angle code, the clamping plate is connected with a telescopic device, and the telescopic device drives the clamping plate to clamp the square tube toward the fixed angle code.

[0008] Preferably, the two clamping stations form a pair of clamping working groups, the two clamping stations in a pair of clamping working groups are symmetrically arranged, and one end of the cantilever of the fixed angle code is arranged to abut against each other.

[0009] Preferably, the lower supporting cross bar is provided with a positioning angle code opposite to the fixed angle code of the clamping station.

[0010] Furthermore, the upper clamping cross bar is staggered with the lower supporting cross bar, the upper clamping cross bar contacts the side of the square tube, the lower supporting cross bar contacts the end face of the square tube, the side face of the fixed angle code is connected to the upper clamping cross bar, and the end face of the positioning angle code is connected to the lower supporting cross bar.

[0011] Preferably, a lifting device is arranged between the upper clamping cross bar and the lower supporting cross bar, and the lifting device includes a guide column arranged on the bracket, a motor arranged in the guide column, a screw connected to the motor, and a lifting platform slidably connected to the screw, and the lifting platform is connected to the lower supporting cross bar.

[0012] Furthermore, a first guide rail groove is formed on the guide column, and the lifting platform is slidably connected to the lead screw along the first guide rail groove.

[0013] Furthermore, a second guide rail groove is formed on the guide column, and the upper clamping cross bar is slidably connected to the guide column through the second guide rail groove.

[0014] Preferably, a positioning strip is provided on the inner side surface of one end of the cantilever of the fixed angle bracket, and the positioning strip and the fixed angle bracket form a J-shaped opening.

[0015] The square tube edge banding laser welding machine comprises a welding machine base, a slide rail arranged on the welding machine base, a welding arm connected to the slide rail, and a laser welding gun arranged at the working end of the welding arm. It also includes the above-mentioned square tube edge banding laser welding machine fixture, and the laser welding gun is vertically arranged above the square tube edge banding laser welding machine fixture.

[0016] Preferably, the movement direction of the welding arm and the slide rail is parallel to the arrangement direction of the plurality of clamping stations of the fixture of the square tube edge banding laser welding machine.

[0017] The technical effects of the utility model are mainly reflected in the following aspects: (1) by processing the square tube placed by vertical clamping, one side of the square tube can be laser welded at the same time, and multiple square tubes can be placed, thereby reducing the steps of re-clamping and re-debugging, greatly improving the efficiency and quality of production; (2) by combining the telescopic device and the lifting device with the fixed angle code and the positioning angle code, square tubes of different lengths and thicknesses can be clamped, thereby increasing the scope of application of the clamp and reducing the replacement of the clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the fixture of the utility model Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the fixture of the utility model Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the structure of the fixture of the utility model Figure 3 ;

[0021] Figure 4 This is a schematic diagram of the structure decomposition of the laser welding machine and the fixture of the utility model. DETAILED DESCRIPTION

[0022] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp. Example

[0023] according to Figure 1-3 As shown, a square tube edge-sealing laser welding machine fixture comprises a bracket 1 erected in front of the laser welding machine, an upper clamping crossbar 2 and a lower supporting crossbar 3 erected on the bracket 1, and a plurality of clamping stations 4 arranged on the upper clamping crossbar 2, wherein the clamping stations 4 are provided with a fixed angle code 41 for vertically placing the square tube 7 and a clamping plate 42 that can be extended relative to the fixed angle code 41, wherein the fixed angle code 41 adopts an aluminum profile with an angle of 90 degrees, and the side surface of the fixed angle code 41 is connected to the upper clamping crossbar 2, and the upper clamping crossbar 2 is staggered with the lower supporting crossbar 3. The upper clamping cross bar 2 contacts the side of the square tube 7, the lower supporting cross bar 3 contacts the end face of the square tube 7, the lower end face of the square tube 7 is placed on the lower supporting cross bar 3, and the edge sealing of the square tube 7 is processed on the upper end face. Therefore, after the upper end face of the square tube 7 is placed at the fixed angle code 41, it can be clamped and fixed by the clamping plate 42 for better processing. The clamping plate 42 is connected with a telescopic device 43. The telescopic device 43 can adopt an NT20 cylinder. The cylinder pushes the piston rod through air pressure to drive the clamping plate 42 to clamp the square tube 7 toward the fixed angle code 41.

[0024] A positioning strip 44 is provided on the inner side surface of one end of the cantilever of the fixed angle code 41. The positioning strip 44 and the fixed angle code 41 form a J-shaped opening. The positioning strip 44 makes the size of the J-shaped opening similar to or the same as the size of the square tube 7, so that the square tube 7 can be pre-positioned and clamped.

[0025] In order to better clamp and fix the square tube 7 and balance the pressure on the fixed angle code 41 when the square tube 7 is clamped, the two clamping stations 4 can form a pair of clamping working groups, and the two clamping stations 4 in a pair of clamping working groups are symmetrically arranged, and one end of the cantilever of the fixed angle code 41 is arranged to abut against each other, that is, the two telescopic devices 43 and the clamping plate 42 move relative to each other, so that the clamping forces generated by the two clamping stations 4 in a pair of clamping working groups can offset each other.

[0026] In order to further position and clamp the square tube 7, especially for the long square tube 7, a positioning angle code 5 opposite to the fixed angle code 41 of the clamping station 4 is arranged on the lower supporting cross bar 3, that is, the positioning angle code 5 and the fixed angle code 41 are aligned on the vertical plane, and the opening directions of the two are consistent, and the end face of the positioning angle code 5 is connected to the lower supporting cross bar 3; in the positioning angle code 5 corresponding to a pair of the clamping working groups, the two positioning angle codes 5 are also symmetrically arranged, and one end of the cantilever of the positioning angle code 5 is arranged against each other; the positioning angle code 5 can adopt an aluminum profile with an angle of 90 degrees.

[0027] By replacing the fixed angle code 41 and the positioning angle code 5 of different sizes, as well as the positioning strip 44 on the fixed angle code 41, combined with the clamping of the telescopic device 43, the square tubes 7 of different sizes can be clamped, eliminating the trouble of replacing the clamp.

[0028] When adapting to square tubes 7 of different lengths, in order to keep the upper end of the square tube 7 clamped and fixed in the clamping station 4, a lifting device 6 is provided between the upper clamping crossbar 2 and the lower supporting crossbar 3, and the lifting device 6 includes a guide column 61 provided on the bracket 1, a motor 62 provided in the guide column 61, a lead screw connected to the motor 62, and a lifting platform 63 slidably connected to the lead screw, the lifting platform 63 is connected to the lower supporting crossbar 3, and the motor 62 can be a stepping motor. Specifically, a first guide rail groove 64 is formed on the guide column 61, and the lifting platform 63 is slidably connected to the lead screw along the first guide rail groove 64. The distance between the lower supporting crossbar 3 and the upper clamping crossbar 2 can be adjusted through the lifting platform 63, so as to facilitate the adaptation of square tubes 7 of different lengths. The lifting device 6 can be provided as a pair, which are respectively provided on both sides of the bracket 1, and can simultaneously lift and adjust the lower supporting crossbar 3.

[0029] A second guide rail groove 65 is formed on the guide column 61 , and the upper clamping cross bar 2 and the guide column 61 are slidably connected via the second guide rail groove 65 . The upper clamping cross bar 2 and the guide column 61 can also be finely adjusted and fixed in height.

[0030] like Figure 4 As shown, the square tube edge sealing laser welding machine 8 includes a welding machine base 81, a slide rail 82 arranged on the welding machine base 81, a welding arm 83 connected to the slide rail 82 and a laser welding gun 84 arranged at the working end of the welding arm 83, and also includes the above-mentioned square tube edge sealing laser welding machine fixture, the laser welding gun 84 is vertically arranged above the square tube edge sealing laser welding machine fixture, the movement direction of the welding arm 84 and the slide rail 82 is parallel to the arrangement direction of several clamping stations 4 of the square tube edge sealing laser welding machine fixture, and the laser welding gun 84 can perform laser edge sealing welding on four edges of one face of multiple square tubes 7 at different clamping stations 4 at one time.

[0031] Working principle:

[0032] Place the bracket 1 in the front working part of the laser welding machine 8, assemble the appropriate fixed angle code 41 and the positioning angle code 5, place multiple square tubes 7 in the multiple clamping stations 4, adjust the distance between the lower support crossbar 3 and the upper clamping crossbar 2 to make it suitable for the length of the square tube 7, and start the telescopic device 43 to make the clamping plate 42 clamp the fixed angle code 41 to fix the square tube 7. Use the laser welding machine 8 to perform positioning and debugging before welding, and start the laser welding machine 8 to perform laser edge sealing welding on four edges of one surface of multiple square tubes 7 at a time.

Claims

1. A square tube edge-sealing laser welding machine fixture, characterized by: It includes a bracket erected in front of the laser welding machine, an upper clamping cross bar and a lower supporting cross bar erected on the bracket, and a plurality of clamping stations arranged on the upper clamping cross bar. The clamping stations are provided with fixed angle codes for vertically placing square tubes and clamps that can be extended and retracted relative to the fixed angle codes. The clamps are connected to an extension device, and the extension device drives the clamps to clamp the square tubes toward the fixed angle codes.

2. According to claim 1, a square tube edge-sealing laser welding machine fixture is characterized in that: The two clamping stations form a pair of clamping working groups. The two clamping stations in a pair of clamping working groups are symmetrically arranged, and one end of the cantilever of the fixed angle code is arranged to abut against each other.

3. A square tube edge-sealing laser welding machine fixture according to claim 1 or 2, characterized in that: The lower supporting cross bar is provided with a positioning angle code which is opposite to the fixed angle code of the clamping station.

4. The square tube edge-sealing laser welding machine fixture according to claim 3 is characterized by: The upper clamping cross bar is staggered with the lower supporting cross bar, the upper clamping cross bar contacts the side surface of the square tube, the lower supporting cross bar contacts the end surface of the square tube, the side surface of the fixed angle code is connected to the upper clamping cross bar, and the end surface of the positioning angle code is connected to the lower supporting cross bar.

5. The square tube edge-sealing laser welding machine fixture according to claim 1 is characterized in that: A lifting device is arranged between the upper clamping cross bar and the lower supporting cross bar, and the lifting device includes a guide column arranged on the bracket, a motor arranged in the guide column, a screw connected to the motor, and a lifting platform slidably connected to the screw, and the lifting platform is connected to the lower supporting cross bar.

6. The square tube edge-sealing laser welding machine fixture according to claim 5 is characterized by: A first guide rail groove is formed on the guide column, and the lifting platform is slidably connected with the lead screw along the first guide rail groove.

7. The square tube edge-sealing laser welding machine fixture according to claim 5 is characterized by: A second guide rail groove is formed on the guide column, and the upper clamping cross bar is slidably connected to the guide column through the second guide rail groove.

8. The square tube edge-sealing laser welding machine fixture according to claim 1 is characterized by: A positioning strip is arranged on the inner side surface of one end of the cantilever of the fixed angle bracket, and the positioning strip and the fixed angle bracket form a J-shaped opening.

9. A square tube edge-sealing laser welding machine, comprising a welding machine base, a slide rail arranged on the welding machine base, a welding arm connected to the slide rail, and a laser welding gun arranged at the working end of the welding arm, characterized in that: It also includes the square tube edge sealing laser welding machine fixture as described in any one of claims 1 to 8, and the laser welding gun is vertically arranged above the square tube edge sealing laser welding machine fixture.

10. The square tube edge sealing laser welding machine according to claim 9, characterized in that: The movement direction of the welding arm and the slide rail is parallel to the arrangement direction of a plurality of clamping stations of the square tube edge sealing laser welding machine fixture.

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