Anti-deformation supporting tool for thin plate laser welding

Abstract

The utility model relates to the technical field of sheet laser welding tools, in particular to an anti-deformation supporting tool for sheet laser welding, which is characterized in that two mounting frames are arranged in a rack in a bilateral symmetry manner, a spline shaft is arranged in the rack, and the left end and the right end of the spline shaft are fixedly arranged on a left side plate and a right side plate of the rack respectively; the spline sleeve is fixed on the mounting frame in a penetrating manner, the mounting frame movably sleeves the spline shaft through the spline sleeve, the fixed claw is fixedly arranged at the upper end of the mounting frame, the fixed claw is of a U-shaped structure, every two movable claws form a group and are arranged on the mounting frame, and the two movable claws in one group are respectively arranged below two claw heads of the fixed claw; through the clamping jaw structure for jacking and clamping and the stretching and positioning structure, clamping and fixing of thin plates needing laser welding are achieved, so that supporting and aligning of two plates are formed, deformation between the plates is effectively prevented, and the welding quality of the plates is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of laser welding fixtures for sheet metal, specifically to a deformation-resistant support fixture for laser welding of thin sheets. Background Technology

[0002] Laser welding refers to the use of high-energy laser beams of specific frequencies to achieve fusion bonding between materials. Laser welding does not require solder, and the welding position, welding time, and energy output are controllable. Therefore, laser welding is often used for welding thin plates. The difficulty in laser welding thin plates usually lies in the flushing of the plates. Due to the small thickness of the plates, insufficient support can easily lead to deformation errors in the joints during clamping and fixing. This can affect the integrity of the weld or even damage the material. Therefore, it is necessary to design anti-deformation support structures for thin plates. Utility Model Content

[0003] The purpose of this utility model is to address the defects and shortcomings of the existing technology by providing a deformation-resistant support fixture for laser welding of thin plates. It uses a lifting and clamping claw structure and a stretching and positioning structure to clamp and fix the thin plates to be laser welded, thereby forming a support alignment for the two plates and effectively preventing deformation between the plates to ensure the welding quality of the plates.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] It includes a rack and mounting brackets, wherein there are two mounting brackets arranged symmetrically on the left and right sides inside the rack. It also includes:

[0006] The spline shaft is located inside the frame, and its left and right ends are fixedly mounted on the left and right side plates of the frame, respectively.

[0007] The spline sleeve is inserted and fixed on the mounting bracket, and the mounting bracket is movably sleeved on the spline shaft through the spline sleeve;

[0008] The fixing claw is fixedly installed at the upper end of the mounting bracket, and the fixing claw is arranged in a "U" shape.

[0009] The movable claws are arranged in pairs on the mounting frame, and the two movable claws in each pair are respectively positioned below the two claw heads of the fixed claw.

[0010] Preferably, a support frame is fixedly provided at the lower end of the mounting bracket, and a movable frame is provided between the fixed claw and the support frame. A support rod is fixedly provided on the lower side wall of the movable claw, and the support rod is movably inserted through the support frame.

[0011] Preferably, a guide frame is integrally formed on the lower side wall of the support frame, and a guide groove is provided on the side wall of the support rod. The support rod is movably inserted through the guide frame, and the support rod is slidably engaged with the guide frame through the guide groove.

[0012] Preferably, an external threaded sleeve is movably inserted on the support frame, a guide block is fixedly provided on the inner side wall of the external threaded sleeve, the external threaded sleeve is movably sleeved on the support rod, and the guide block on the external threaded sleeve is slidably disposed in the guide groove on the support rod. A support threaded sleeve is sleeved on the external threaded sleeve by threaded connection, and the support threaded sleeve is clamped between the support frame and the guide frame.

[0013] Preferably, a support spring is sleeved on the support rod, with the upper end of the support spring abutting against the lower side wall of the movable claw and the lower end of the support spring abutting against the upper end wall of the external threaded sleeve.

[0014] Preferably, a threaded rod is fixedly provided on the mounting bracket, and the threaded rod is movably inserted through the side plate of the frame. A tension threaded sleeve is provided on the threaded rod through a threaded connection. A limit frame is fixedly provided on the outer side wall of the side plate of the frame. The threaded rod is movably inserted through the limit frame, and the tension threaded sleeve is clamped between the frame and the limit frame.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This solution uses adjustable movable claws to hold the thin plate to be welded against the lower side wall of the fixed claws, and the thin plate is stretched by the cooperation of the mounting brackets on both sides, thereby maintaining the flush support of the upper surface of the two thin plates and thus ensuring the stability of the thin plate welding. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a structural diagram of the mounting bracket, fixed claw, and movable claw in this utility model.

[0019] Figure 3 yes Figure 2 The right-side view.

[0020] Figure 4 This is a structural schematic diagram of the mounting frame, support frame, and guide frame in this utility model.

[0021] Figure 5 This is a structural schematic diagram of the support rod, external threaded sleeve, and support threaded sleeve in this utility model.

[0022] Figure 6 This is a schematic diagram of the external threaded sleeve in this invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] Frame 1, Mounting bracket 2, Splined shaft 3, Splined sleeve 4, Fixed claw 5, Movable claw 6, Support frame 7, Support rod 8, Guide frame 9, Guide groove 10, External threaded sleeve 11, Guide block 12, Support threaded sleeve 13, Support spring 14, Threaded rod 15, Tension threaded sleeve 16, Limiting frame 17. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] like Figure 1-6 As shown, the specific implementation adopts the following technical solution:

[0027] This specific embodiment includes a frame 1 and a mounting frame 2, wherein there are two mounting frames 2 arranged symmetrically on the left and right sides inside the frame 1;

[0028] Spline shaft 3, the spline shaft 3 is disposed inside the frame 1, and the left and right ends of the spline shaft 3 are respectively fixedly disposed on the inner walls of the left and right side plates of the frame 1.

[0029] Spline sleeve 4, the spline sleeve 4 is inserted and fixed on the mounting bracket 2, and the mounting bracket 2 is movably sleeved on the spline shaft 3 through the spline sleeve 4;

[0030] The fixing claw 5 has a "U" shaped structure and is fixedly installed on the upper wall of the mounting frame 2, and the fixing claws 5 on the left and right mounting frames 2 are symmetrically arranged.

[0031] The support frame 7 is fixedly installed on the lower end wall of the mounting frame 2, and the support frame 7 is arranged in a "U" shape.

[0032] Guide frame 9, which is integrally formed and installed on the lower side wall of support frame 7;

[0033] Support rod 8, the two support rods 8 are arranged in a group and are symmetrically inserted through the two end feet of the guide frame 9, and the support rod 8 passes through the guide frame 9;

[0034] A guide groove 10 is provided on the side wall of the support rod 8, and the guide groove 10 is slidably configured to cooperate with the guide frame 9;

[0035] Movable claw 6, the two movable claws 6 are grouped together and fixedly installed on the upper ends of the two support rods 8 of the group, and the two movable claws 6 of the group are respectively installed below the two claw heads of the fixed claw 5;

[0036] The external threaded sleeve 11 is movably sleeved on the support rod 8 and movably inserted into the support frame 7.

[0037] A guide block 12 is integrally formed on the inner side wall of the external threaded sleeve 11, and the guide block 12 is slidably disposed in the guide groove 10;

[0038] A support threaded sleeve 13 is provided, which is threadedly fitted onto the external threaded sleeve 11 and is sandwiched between the support frame 7 and the guide frame 9.

[0039] The support spring 14 is sleeved on the support rod 8. The upper end of the support spring 14 abuts against the lower side wall of the movable claw 6, and the lower end of the support spring 14 abuts against the upper end wall of the external threaded sleeve 11.

[0040] The threaded rod 15 is fixedly mounted on the mounting bracket 2 and movably passes through the side plate of the frame 1.

[0041] The limiting frame 17 is fixedly installed on the outer wall of the side plate of the frame 1, and the threaded rod 15 is movably inserted through the limiting frame 17.

[0042] The threaded sleeve 16 is threadedly fitted onto the threaded rod 15 and is clamped between the frame 1 and the limiting frame 17.

[0043] When using this device, two thin plates to be welded are clamped and fixed to the movable frame using the fixed claws 5. The left and right ends of one thin plate are clamped by the movable claws 6 on both sides, which engage with the rear claws of the fixed claws 5 on both sides. The left and right ends of the other thin plate are clamped by the movable claws 6 on both sides, which engage with the front claws of the fixed claws 5 on both sides. The adjacent edges of the two thin plates are then aligned and joined. The thin plates are placed between the fixed claws 5 and the movable claws 6. Then, the support threaded sleeve 13 is rotated, which in turn pushes the external threaded sleeve 11 through the support threaded sleeve 13, guided by a guide. The frame 9 guides the support rod 8 vertically, causing the guide rod to move the movable claw 6 only up and down while the support rod 8 does not rotate. The guide groove 10 on the support rod 8 engages with the guide block 12 inside the external threaded sleeve 11, allowing the external threaded sleeve 11 to move only up and down without rotating. Then, the external threaded sleeve 11 moves upward, pushing the movable claw 6 upward via the support spring 14, causing the movable claw 6 to press the thin plate against the fixed claw 5 and tighten it. Next, the support threaded sleeve 13 continues to rotate, pushing the external threaded sleeve 11 upward, thus through the interaction between the external threaded sleeve 11 and the movable claw 6... The claw 6 engages to press the support spring 14, causing the compressed support spring 14 to provide pressure on the movable claw 6. That is, the movable claw 6 presses against the fixed claw 5 via the support spring 14, thereby adjusting the rising distance of the external threaded sleeve 11 to adjust the compression degree of the support spring 14, i.e., adjusting the pressure of the movable claw 6 relative to the fixed claw 5. This achieves the adjustment of the clamping force of the movable claw 6 and the fixed claw 5 on the thin plate. Then, rotating the tension threaded sleeves 16 on both sides pulls the threaded rod 15, which in turn pulls the mounting bracket 2 to move via the spline sleeve. 4. The guide slides on the spline shaft 3, thereby the mounting bracket 2 pulls the thin plate clamped by the fixed claw 5 and the movable claw 6, causing the two ends of the thin plate to be stretched, thereby tightening the thin plate. When the thin plate is stretched, the clamping force of the fixed claw 5 and the movable claw 6 provides friction on the thin plate. When the tension exceeds the friction of the thin plate, the thin plate slides between the fixed claw 5 and the movable claw 6 and is no longer stretched. The lower surfaces of the two fixed claws 5 are flush, thereby the movable claw 6 presses the thin plate upward against the fixed claw 5, that is, the upper surface of the thin plate is flush.

[0044] Compared with the prior art, the beneficial effects of this utility model are:

[0045] 1. This device clamps the thin plate by cooperating with the adjustable movable claw 6 and the fixed claw 5. By pressing the thin plate against the lower surface of the fixed claw 5, the upper surface of the thin plate is aligned and aligned.

[0046] 2. This device sets the movable claw 6 and the fixed claw 5 on the horizontally movable mounting frame 2, so that the thin plate being clamped can be tensioned by the movement of the mounting frame 2, that is, the thin plate can be supported and prevented from deformation.

[0047] 3. This device adjusts the clamping force of the movable claw 6 and the fixed claw 5 on the thin plate, thereby adjusting the static friction force provided by the two when clamping the thin plate. This allows the thin plate to slide between the fixed claw 5 and the movable claw 6 and stop being stretched when the tension is greater than the static friction force during the tensioning of the thin plate by the mounting bracket 2.

[0048] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A deformation-resistant support fixture for laser welding of thin plates, comprising a frame (1) and mounting brackets (2), wherein there are two mounting brackets (2) arranged symmetrically inside the frame (1); characterized in that, It also includes: Spline shaft (3), the spline shaft (3) is set inside the frame (1), and the left and right ends of the spline shaft (3) are respectively fixed on the left and right side plates of the frame (1); Spline sleeve (4), the spline sleeve (4) is inserted and fixed on the mounting bracket (2), and the mounting bracket (2) is movably sleeved on the spline shaft (3) through the spline sleeve (4); The fixing claw (5) is fixedly installed on the upper end of the mounting bracket (2), and the fixing claw (5) is arranged in a "U" shape. Movable claws (6), the two movable claws (6) are set on the mounting frame (2) in groups of two, and the two movable claws (6) in a group are respectively set below the two claw heads of the fixed claws (5).

2. The anti-deformation support fixture for thin plate laser welding according to claim 1, characterized in that: The mounting bracket (2) is fixedly provided with a support frame (7) at its lower end. The movable frame is provided between the fixed claw (5) and the support frame (7). A support rod (8) is fixedly provided on the lower side wall of the movable claw (6). The support rod (8) is movably inserted through the support frame (7).

3. The anti-deformation support fixture for laser welding of thin plates according to claim 2, characterized in that: The lower side wall of the support frame (7) is integrally formed with a guide frame (9), and the side wall of the support rod (8) is provided with a guide groove (10). The support rod (8) is movably inserted on the guide frame (9), and the support rod (8) is slidably engaged with the guide frame (9) through the guide groove (10).

4. The anti-deformation support fixture for thin plate laser welding according to claim 3, characterized in that: The support frame (7) is movably fitted with an external threaded sleeve (11), and a guide block (12) is fixedly installed on the inner side wall of the external threaded sleeve (11). The external threaded sleeve (11) is movably fitted on the support rod (8), and the guide block (12) on the external threaded sleeve (11) is slidably installed in the guide groove (10) on the support rod (8). A support threaded sleeve (13) is fitted on the external threaded sleeve (11) by threaded connection, and the support threaded sleeve (13) is clamped between the support frame (7) and the guide frame (9).

5. The anti-deformation support fixture for laser welding of thin plates according to claim 4, characterized in that: A support spring (14) is sleeved on the support rod (8). The upper end of the support spring (14) abuts against the lower side wall of the movable claw (6), and the lower end of the support spring (14) abuts against the upper end wall of the external threaded sleeve (11).

6. The anti-deformation support fixture for laser welding of thin plates according to claim 1, characterized in that: A threaded rod (15) is fixedly installed on the mounting bracket (2), and the threaded rod (15) is movably inserted through the side plate of the frame (1). A tension threaded sleeve (16) is provided on the threaded rod (15) through a threaded connection. A limit frame (17) is fixedly installed on the outer side wall of the side plate of the frame (1). The threaded rod (15) is movably inserted through the limit frame (17), and the tension threaded sleeve (16) is clamped between the frame (1) and the limit frame (17).

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