An auxiliary clamping tool for laser welding

Abstract

The utility model provides a kind of auxiliary clamping tool for laser welding, belong to laser welding fixture technical field, including support;It is located in the support top's support ring;Three electric push rods one are axially equidistant and arranged on the outer wall of the one side of support ring;Mobile plate is all arranged in the output end of three electric push rods one;Adjusting screw rod is screwed on the outer side wall of mobile plate;External pressure head is rotated in the one end of adjusting screw rod one;Three connecting frames are axially equidistant and arranged on the outer wall adjacent to electric push rod one one side of support ring;The utility model under the linkage of compression linkage assembly, so that inner pressure head and outer pressure head synchronous relative movement, inner pressure head and outer pressure head respectively simultaneously contact the inner side wall and outer side wall of pipeline, because the same position of pipeline is simultaneously pressed inside and outside, effectively offset the extrusion force of clamping, can avoid the deformation of pipeline wall under pressure, while avoiding pipeline itself structure damage in keeping pipeline clamping firm and stable.

Description

Technical Field

[0001] This utility model belongs to the technical field of laser welding fixtures, specifically relating to an auxiliary clamping fixture for laser welding. Background Technology

[0002] Laser welding is a highly efficient and precise welding method that uses a high-energy-density laser beam as a heat source. Laser welding is one of the important applications of laser material processing technology.

[0003] Laser welding is one of the fixing methods used in pipe connection. Since some pipes have thin walls, clamps are often used to hold the outer wall of the pipe when clamping and fixing it. Because thin-walled pipes have weak resistance to compression, the pipe wall is prone to denting during clamping, causing pipe deformation.

[0004] Therefore, an auxiliary clamping fixture for laser welding is proposed. Summary of the Invention

[0005] This invention provides an auxiliary clamping fixture for laser welding, the purpose of which is to solve the problems mentioned above.

[0006] This utility model provides an auxiliary clamping fixture for laser welding, including a bracket; a support ring disposed on the top of the bracket; three electric push rods axially and equally spaced on one side of the outer wall of the support ring; a movable plate disposed on the output end of each of the three electric push rods; an adjusting screw threaded onto the outer wall of the movable plate; an external pressure head rotatable at one end of the adjusting screw; three connecting frames axially and equally spaced on the outer wall of the support ring adjacent to the electric push rods; a U-shaped frame disposed on the outer wall of each of the three connecting frames; a guide post penetrating one side of the outer wall of the U-shaped frame; an inner pressure head disposed at one end of the guide post; and a pressure linkage assembly disposed on one side of the outer and inner pressure heads.

[0007] Furthermore, the compression linkage assembly includes: an active plate disposed on one side of the movable plate; a toothed plate one disposed on the outer wall of one side of the active plate; a driven plate disposed on the other side of the guide post; a toothed plate two disposed on one side of the driven plate; a support plate disposed on the outer wall of one side of the U-shaped frame; and a gear rotating on the outer wall of one side of the support plate.

[0008] Furthermore, a light rod is provided on one side of the outer wall of the external pressure head near the adjusting screw, and the light rod passes through the moving plate;

[0009] By adopting the above technical solution, the moving plate can be limited by the light rod to prevent the moving plate from rotating during movement.

[0010] Furthermore, the active plate has an L-shaped cross-section;

[0011] By adopting the above technical solution, the L-shaped active plate avoids the U-shaped frame, thus preventing the active plate from contacting the U-shaped frame.

[0012] Furthermore, the first toothed plate and the second toothed plate are horizontal, and both the first toothed plate and the second toothed plate are meshed with gears;

[0013] By adopting the above technical solution, transmission is achieved through meshing connection, with gears as the transmission component, thereby enabling gear plate one and gear plate two to move in opposite directions.

[0014] Furthermore, the axes of the outer pressure head and the inner pressure head are on the same plane;

[0015] By adopting the above technical solution, the external pressure head and the internal pressure head can be moved towards each other and contact the same position on the pipeline, thereby avoiding pressure deformation of the pipeline wall.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention, through the linkage of the pressure linkage component, enables the inner and outer pressure heads to move synchronously towards each other. The inner and outer pressure heads simultaneously contact the inner and outer walls of the pipe, respectively. Since the same location on the pipe is simultaneously compressed from both inside and outside, the clamping pressure is effectively offset, preventing deformation of the pipe wall. This ensures a firm and stable clamping of the pipe while preventing damage to the pipe structure. Furthermore, by utilizing the adjustable capability of the outer pressure head before clamping, its position can be adjusted according to the pipe wall thickness and size, so that the outer and inner pressure heads can simultaneously contact the inner and outer walls of the pipe after moving synchronously towards each other, achieving the function of clamping and protection. This invention is suitable for auxiliary clamping of thin-walled pipes before laser welding.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the support structure according to an embodiment of the present utility model;

[0022] Figure 3This is a partial structural schematic diagram of an embodiment of the present utility model;

[0023] Figure 4 This is an embodiment of the present utility model. Figure 2 Enlarged diagram of point A in the diagram;

[0024] Figure 5 This is an embodiment of the present utility model. Figure 3 Enlarged diagram of point B in the diagram;

[0025] Reference numerals in the attached drawings: 1. Bracket; 2. Support ring; 3. Electric push rod one; 4. Moving plate; 5. Adjusting screw; 6. External pressure head; 7. Connecting frame; 8. U-shaped frame; 9. Guide column; 10. Internal pressure head; 11. Pressure linkage assembly; 111. Driving plate; 112. Gear plate one; 113. Driven plate; 114. Gear plate two; 115. Support plate; 116. Gear. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] Reference Figure 1-5 This utility model provides an auxiliary clamping fixture for laser welding, including a bracket 1. A support ring 2 is provided at the top of the bracket 1. Three electric push rods 3 are axially spaced at equal intervals on one side of the outer wall of the support ring 2. Each of the three electric push rods 3 is fixedly connected to a movable plate 4 via its output end. An adjusting screw 5 is threadedly connected to one side of the outer wall of the movable plate 4. One end of the adjusting screw 5 is rotatably connected to an external pressure head 6. A light rod is provided on one side of the outer wall of the external pressure head 6 near the adjusting screw 5. The light rod passes through the movable plate 4, and the moving plate 4 can be adjusted via the light rod. The movable plate 4 is limited to prevent it from rotating during movement. Three connecting frames 7 are axially spaced at equal intervals on the outer wall of the supporting ring 2 adjacent to the electric push rod 3. U-shaped frames 8 are provided on the outer wall of the three connecting frames 7 away from the supporting ring 2. A guide column 9 is provided through one side of the outer wall of the U-shaped frame 8. An inner pressure head 10 is provided at one end of the guide column 9 near the outer pressure head 6. The axes of the outer pressure head 6 and the inner pressure head 10 are on the same plane, which allows the outer pressure head 6 and the inner pressure head 10 to contact the same position of the pipeline after moving towards each other, thereby preventing the pipeline wall from being deformed by pressure.

[0028] One side of the movable plate 4 is provided with an active plate 111 of the pressure linkage assembly 11. The active plate 111 has an L-shaped cross-section. The L-shaped active plate 111 avoids the U-shaped frame 8 and prevents the active plate 111 from contacting the U-shaped frame 8. A toothed plate 112 is provided on one side of the outer wall of the active plate 111. A driven plate 113 is provided on the other end of the guide column 9. A toothed plate 114 is provided on one side of the outer wall of the driven plate 113. A support plate 115 is provided on one side of the outer wall of the U-shaped frame 8. A gear 116 is rotatably connected to one side of the outer wall of the support plate 115. The toothed plate 112 and the toothed plate 114 are horizontal and are meshed with the gear 116. The transmission is achieved through the meshing connection. The gear 116 is used as the transmission component, so that the toothed plate 112 and the toothed plate 114 can move in opposite directions.

[0029] The specific implementation method is as follows: Before welding the pipe (not shown in the figure), the pipe needs to be clamped and one end of the pipe is horizontally inserted into the support ring 2. At this time, the pipe is inserted between the outer pressure head 6 and the inner pressure head 10. Under the action of the pipe's own weight, the top of the inner wall of the pipe abuts against the uppermost inner pressure head 10. The inner pressure head 10 supports the pipe. The distance between the outer pressure head 6 and the inner pressure head 10 is adjusted according to the wall thickness and size of the pipe so that the outer pressure head 6 and the inner pressure head 10 move towards each other synchronously and contact the inner and outer walls of the pipe at the same time.

[0030] Rotating the adjusting screw 5, through the screw connection between the adjusting screw 5 and the moving plate 4, one end of the adjusting screw 5 pushes the outer pressure head 6 to move linearly, and the distance between the outer pressure head 6 and the inner pressure head 10 is adjusted. When performing the pipe clamping operation, the electric push rod 3 controls the moving plate 4 to move downward through its output end on one side. During the movement, the moving plate 4 pulls the active plate 111 to move synchronously, and the toothed plate 112 on the active plate 111 moves synchronously. Under the meshing transmission of the gear 116, the toothed plate 114 moves in the opposite direction to the moving direction of the toothed plate 112. At this time, the toothed plate 114 pulls the driven plate 113 to move. Under the connection of the guide column 9, the inner pressure head 10 moves toward the outer pressure head 6.

[0031] The inner pressure head 10 and the outer pressure head 6 simultaneously contact the inner and outer walls of the pipe. Since the pipe is compressed at the same location, the pipe wall can be prevented from deforming under pressure, thus keeping the pipe firmly and stably clamped while avoiding damage to the pipe's own structure.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An auxiliary clamping fixture for laser welding, characterized in that: Includes a support (1); A support ring (2) is provided at the top of the bracket (1); Three electric push rods (3) are axially spaced at equal intervals on the outer wall of one side of the support ring (2); The movable plate (4) is located at the output end of the three electric push rods (3); Adjustment screws (5) are threaded onto the outer wall of the movable plate (4); An external pressure head (6) rotates at one end of the adjusting screw (5); Three connecting frames (7) are axially spaced at equal intervals on the outer wall of the supporting ring (2) adjacent to the electric push rod (3); U-shaped frames (8) are all provided on the outer side walls of the three connecting frames (7); A guide post (9) runs through the outer wall of one side of the U-shaped frame (8); An internal pressure head (10) is provided at one end of the guide post (9); A pressure linkage assembly (11) is provided on one side of the outer pressure head (6) and the inner pressure head (10).

2. The auxiliary clamping fixture for laser welding according to claim 1, characterized in that: The compression linkage component (11) includes: An active plate (111) is provided at one end of the movable plate (4); A toothed plate (112) is provided on the outer wall of one side of the active plate (111); A driven plate (113) is provided at the other end of the guide post (9); A toothed plate (114) is provided on one side of the driven plate (113); A support plate (115) is provided on one side of the outer wall of the U-shaped frame (8); A gear (116) that rotates on the outer wall of one side of the support plate (115).

3. The auxiliary clamping fixture for laser welding according to claim 1, characterized in that: A light rod is provided on one side of the outer wall of the external pressure head (6) near the adjusting screw (5), and the light rod passes through the moving plate (4).

4. The auxiliary clamping fixture for laser welding according to claim 2, characterized in that: The active plate (111) has an L-shaped cross-section.

5. The auxiliary clamping fixture for laser welding according to claim 2, characterized in that: The first toothed plate (112) and the second toothed plate (114) are horizontal, and both the first toothed plate (112) and the second toothed plate (114) are meshed with the gear (116).

6. The auxiliary clamping fixture for laser welding according to claim 1, characterized in that: The axes of the external pressure head (6) and the internal pressure head (10) are on the same plane.

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