Positioning mechanism for laser welding of stainless steel valve seat

Abstract

The utility model discloses a stainless steel valve seat laser welding positioning mechanism which comprises a base, the top of the base is fixedly connected with a supporting plate, one side of the supporting plate is connected with a vertical plate in a sliding mode and located on the top of the base, one side of the vertical plate is connected with a mounting plate in a sliding mode, and the bottom of the mounting plate is fixedly provided with a laser welding machine. A welding head is fixedly connected to the output end of the laser welding machine, a lifting assembly is arranged in the vertical plate and used for driving the welding head to move, two arc-shaped clamping plates are slidably connected to the top of the supporting plate, and a clamping assembly is arranged in the supporting plate and used for clamping the welding head. The clamping assembly is used for driving the two arc-shaped clamping plates to move. The vertical plate is pushed by the electric cylinder to move on the top of the base, so that the welding position corresponding to the welding head is changed according to welding requirements, and multi-point adjustable laser welding work can be conveniently carried out on the positioned stainless steel valve seat according to actual use requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of a positioning mechanism for welding, in particular to a positioning mechanism for laser welding of a stainless steel valve seat. Background Art

[0002] The welding positioning mechanism refers to a device used to help welders fix the position of the workpiece during the welding process. It can ensure the stability and accuracy of the workpiece during the welding process, thereby improving the welding quality and efficiency. The welding positioning mechanism is usually composed of components such as clamps, clamp seats and adjustment devices. By adjusting the position and angle of these components, the workpiece can be accurately positioned and fixed.

[0003] There are various positioning mechanisms for laser welding available at present, but these positioning mechanisms can usually only perform fixed-point welding on the stainless steel valve seat after positioning. It is not convenient to make corresponding position adjustments according to actual usage. This results in the need to reposition the stainless steel valve seat after completing single-point laser welding, which increases the workload of welders. For this reason, we propose a positioning mechanism for laser welding of stainless steel valve seats. Utility Model Content

[0004] The utility model aims to provide a positioning mechanism for laser welding of a stainless steel valve seat to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning mechanism for laser welding of stainless steel valve seats, comprising a base, a support plate fixedly connected to the top of the base, a vertical plate slidably connected to one side of the support plate and located at the top of the base, a mounting plate slidably connected to one side of the vertical plate, a laser welding machine fixedly installed on the bottom of the mounting plate, a welding head fixedly connected to the output end of the laser welding machine, a lifting assembly is arranged inside the vertical plate, the lifting assembly is used to drive the welding head to move, two arc-shaped clamping plates are slidably connected to the top of the support plate, a clamping assembly is arranged inside the support plate, the clamping assembly is used to drive the two arc-shaped clamping plates to move.

[0006] As a further preferred embodiment of the present technical solution, the lifting assembly includes a lifting slot, which is opened on one side of the vertical plate, a threaded rod is rotatably connected between the inner walls of the lifting slot, a lifting block is threadedly connected to the outer side of the threaded rod, and one side of the lifting block is fixedly connected to the mounting plate.

[0007] As a further preferred embodiment of the present technical solution, the clamping assembly includes a limit groove, which is opened on the top of the support plate, and a bidirectional screw rod is rotatably connected between the inner walls of the limit groove, and the outer side of the bidirectional screw rod is threadedly connected to two connecting plates, and one end of the connecting plate extends to the outside of the limit groove and is fixedly connected to the arc-shaped clamping plate.

[0008] As a further preferred embodiment of the present technical solution, a first servo motor is fixedly mounted on the top of the vertical plate, and an output end of the first servo motor extends to the interior of the lifting slot and is fixedly connected to the threaded rod.

[0009] As a further preferred embodiment of the present technical solution, a second servo motor is fixedly mounted on one side of the support plate, and an output end of the second servo motor extends to the inside of the limiting groove and is fixedly connected to the bidirectional lead screw.

[0010] As a further preferred embodiment of the present technical solution, a slide groove is provided on the top of the base, an electric cylinder is fixedly installed on one side of the base, the output end of the electric cylinder extends to the inside of the slide groove and is fixedly connected to a movable plate, and one end of the movable plate extends to the outside of the slide groove and is fixedly connected to the vertical plate.

[0011] As a further preferred embodiment of the present technical solution, rubber pads are fixedly connected to the inner sides of the two arc-shaped clamping plates.

[0012] The utility model provides a positioning mechanism for laser welding of stainless steel valve seats, which has the following beneficial effects:

[0013] (1) The utility model uses an electric cylinder to push the vertical plate to move on the top of the base, so that the welding position corresponding to the welding head can be changed according to welding requirements, thereby facilitating multi-point adjustable laser welding of the stainless steel valve seat after positioning according to actual use requirements.

[0014] (2) The utility model drives the welding head to contact the welding surface of the stainless steel valve seat through the lifting assembly, so that the positioning mechanism can weld stainless steel valve seats of different heights, thereby improving the practicality of the positioning mechanism.

[0015] (3) The utility model uses a clamping assembly to drive two arc-shaped clamping plates to clamp and fix the stainless steel valve seat, and increases the friction between the stainless steel valve seat and the arc-shaped clamping plates through the rubber pads on the inner sides of the arc-shaped clamping plates, making the clamping and fixing of the stainless steel valve seat more stable. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a schematic diagram of the back structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the mounting plate structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the arc-shaped splint structure of the utility model;

[0020] In the figure: 1. base; 2. vertical plate; 3. support plate; 4. mounting plate; 5. slide groove; 6. moving plate; 7. electric cylinder; 8. lifting groove; 9. threaded rod; 10. first servo motor; 11. laser welding machine; 12. welding head; 13. limit groove; 14. bidirectional screw rod; 15. second servo motor; 16. connecting plate; 17. arc clamping plate; 18. lifting block; 19. rubber pad. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] The utility model provides a technical solution: Figure 1-Figure 4 As shown, in this embodiment, the positioning mechanism for laser welding of stainless steel valve seats includes a base 1, a support plate 3 is fixedly connected to the top of the base 1, a vertical plate 2 is slidably connected to one side of the support plate 3 and located at the top of the base 1, a mounting plate 4 is slidably connected to one side of the vertical plate 2, a laser welding machine 11 is fixedly installed at the bottom of the mounting plate 4, a welding head 12 is fixedly connected to the output end of the laser welding machine 11, a lifting assembly is arranged inside the vertical plate 2, the lifting assembly is used to drive the welding head 12 to move, two arc-shaped clamping plates 17 are slidably connected to the top of the support plate 3, a clamping assembly is arranged inside the support plate 3, the clamping assembly is used to drive the two arc-shaped clamping plates 17 to move, a slide groove 5 is opened at the top of the base 1, an electric cylinder 7 is fixedly installed on one side of the base 1, the output end of the electric cylinder 7 extends to the inside of the slide groove 5 and is fixedly connected to a moving plate 6, one end of the moving plate 6 extends to the outside of the slide groove 5 and is fixedly connected to the vertical plate 2, and the inner sides of the two arc-shaped clamping plates 17 are fixedly connected to rubber pads 19.

[0023] When performing laser welding of the stainless steel valve seat, first place the stainless steel valve seat on top of the support plate 3, then use the clamping assembly to clamp and fix the stainless steel valve seat from both sides to complete the welding positioning, then use the lifting assembly to drive the welding head 12 to contact the stainless steel valve seat to complete the laser welding work. When multi-point welding of the stainless steel valve seat is required, according to actual practical needs, the electric cylinder 7 is used to push the vertical plate 2 to move on the top of the base 1, so that the welding head 12 moves to the top of the corresponding welding point, and then the laser welding of the corresponding point is completed under the action of the lifting assembly, thereby improving the flexibility of the positioning mechanism, so that the positioning mechanism is convenient for multi-point adjustable welding of the stainless steel valve seat.

[0024] like Figure 1-Figure 4As shown, the lifting assembly includes a lifting slot 8, which is opened on one side of the vertical plate 2. A threaded rod 9 is rotatably connected between the inner walls of the lifting slot 8. The outer side of the threaded rod 9 is threadedly connected to a lifting block 18. One side of the lifting block 18 is fixedly connected to the mounting plate 4. A first servo motor 10 is fixedly installed on the top of the vertical plate 2. The output end of the first servo motor 10 extends to the interior of the lifting slot 8 and is fixedly connected to the threaded rod 9.

[0025] The first servo motor 10 drives the threaded rod 9 to rotate between the inner walls of the lifting groove 8, so that the lifting block 18 outside the threaded rod 9 drives the mounting plate 4 to move on one side of the vertical plate 2, thereby facilitating the welding of stainless steel valve seats of different heights according to actual usage requirements.

[0026] like Figure 1-Figure 4 As shown, the clamping assembly includes a limit groove 13, which is opened on the top of the support plate 3, and a bidirectional screw rod 14 is rotatably connected between the inner walls of the limit groove 13. The outer side of the bidirectional screw rod 14 is threadedly connected to two connecting plates 16, one end of the connecting plate 16 extends to the outside of the limit groove 13 and is fixedly connected to the arc clamping plate 17, and a second servo motor 15 is fixedly installed on one side of the support plate 3, and the output end of the second servo motor 15 extends to the inside of the limit groove 13 and is fixedly connected to the bidirectional screw rod 14.

[0027] The second servo motor 15 drives the bidirectional screw rod 14 to rotate between the inner walls of the limit groove 13, so that the two connecting plates 16 outside the bidirectional screw rod 14 drive the arc clamping plate 17 to move on the top of the support plate 3, thereby facilitating the clamping and positioning of the stainless steel valve seat according to actual usage requirements, and further improving the stability of the stainless steel valve seat during laser welding.

[0028] The utility model provides a positioning mechanism for laser welding of a stainless steel valve seat, and the specific working principle is as follows: when performing laser welding of the stainless steel valve seat, firstly, the stainless steel valve seat is placed above the support plate 3, and then the second servo motor 15 is used to drive the bidirectional screw rod 14 to rotate between the inner walls of the limit groove 13, so that the two connecting plates 16 outside the bidirectional screw rod 14 drive the arc clamping plate 17 to move on the top of the support plate 3, so that the two arc clamping plates 17 clamp and fix the stainless steel valve seat from both sides, so that the welding positioning is completed, and then the first servo motor 10 is used to drive the threaded rod 9 to rotate between the inner walls of the lifting groove 8, so that the lifting block 18 outside the threaded rod 9 drives the mounting plate 4 to move on one side of the vertical plate 2, so that the welding head 12 contacts with the stainless steel valve seat under the action of the mounting plate 4, so that the laser welding work is completed, when it is necessary to perform multi-point welding on the stainless steel valve seat, according to actual practical needs, the electric cylinder 7 is used to push the vertical plate 2 to move on the top of the base 1, so that the welding head 12 moves to the top of the corresponding welding point, and then the threaded rod 9 drives the mounting plate 4 to move to complete the laser welding work of the corresponding point.

[0029] Although 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 positioning mechanism for laser welding of a stainless steel valve seat, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a support plate (3); one side of the support plate (3) and located at the top of the base (1) is slidably connected to a vertical plate (2); one side of the vertical plate (2) is slidably connected to a mounting plate (4); a laser welding machine (11) is fixedly installed at the bottom of the mounting plate (4); an output end of the laser welding machine (11) is fixedly connected to a welding head (12); a lifting assembly is arranged inside the vertical plate (2); the lifting assembly is used to drive the welding head (12) to move; two arc-shaped clamping plates (17) are slidably connected to the top of the support plate (3); a clamping assembly is arranged inside the support plate (3); the clamping assembly is used to drive the two arc-shaped clamping plates (17) to move.

2. The positioning mechanism for laser welding of stainless steel valve seats according to claim 1, characterized in that: The lifting assembly comprises a lifting slot (8), wherein the lifting slot (8) is provided on one side of the vertical plate (2), a threaded rod (9) is rotatably connected between the inner walls of the lifting slot (8), a lifting block (18) is threadedly connected to the outer side of the threaded rod (9), and one side of the lifting block (18) is fixedly connected to the mounting plate (4).

3. The positioning mechanism for laser welding of stainless steel valve seats according to claim 1, characterized in that: The clamping assembly comprises a limiting groove (13), wherein the limiting groove (13) is arranged at the top of the supporting plate (3), a bidirectional screw rod (14) is rotatably connected between the inner walls of the limiting groove (13), the outer side of the bidirectional screw rod (14) is threadedly connected to two connecting plates (16), and one end of the connecting plate (16) extends to the outer side of the limiting groove (13) and is fixedly connected to the arc-shaped clamping plate (17).

4. The positioning mechanism for laser welding of stainless steel valve seats according to claim 2, characterized in that: A first servo motor (10) is fixedly mounted on the top of the vertical plate (2); an output end of the first servo motor (10) extends into the interior of the lifting slot (8) and is fixedly connected to the threaded rod (9).

5. The positioning mechanism for laser welding of stainless steel valve seats according to claim 3, characterized in that: A second servo motor (15) is fixedly mounted on one side of the support plate (3); an output end of the second servo motor (15) extends into the interior of the limiting groove (13) and is fixedly connected to the bidirectional lead screw (14).

6. The positioning mechanism for laser welding of stainless steel valve seats according to claim 1, characterized in that: A slide groove (5) is provided on the top of the base (1); an electric cylinder (7) is fixedly mounted on one side of the base (1); an output end of the electric cylinder (7) extends to the inside of the slide groove (5) and is fixedly connected to a movable plate (6); one end of the movable plate (6) extends to the outside of the slide groove (5) and is fixedly connected to the vertical plate (2).

7. The positioning mechanism for laser welding of stainless steel valve seats according to claim 1, characterized in that: The inner sides of the two arc-shaped clamping plates (17) are fixedly connected with rubber pads (19).

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