Novel clamp for laser welding

Abstract

The utility model relates to the technical field of laser welding, in particular to a novel laser welding clamp which comprises an L-shaped base, a clamping device is arranged in the base and comprises a U-shaped frame, a rotating shaft is connected to the middle of the left end in the U-shaped frame through a bearing, a gear is fixedly connected to the outer wall of the rotating shaft, and a rack is connected to the outer wall of the gear in a meshed mode. The left end face of the rotating shaft is fixedly connected with a driving rod, the upper end and the lower end of the driving rod are movably connected with connecting rods through the rotating shaft, two vertically-distributed sliding grooves are formed in the left end face in the U-shaped frame in a penetrating mode, the starting air cylinder drives the rack to move, the rack moves to drive the gear to rotate, and when the gear rotates, the rotating shaft and the driving rod can be driven to rotate; when the driving rod rotates, the two connecting rods are driven to pull the two supporting bases and the sliding blocks to move relatively, the workpieces are clamped, and therefore the purposes that the clamping device can be matched with clamping and fixing of the rectangular workpieces and the columnar workpieces, the workpieces can be turned over conveniently, and use is convenient are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding, in particular to a novel clamp for laser welding. Background Art

[0002] Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. Laser welding is one of the important aspects of the application of laser material processing technology. The laser welding fixture is a tool used to ensure the position of the weldment, improve assembly accuracy and efficiency, and prevent welding deformation.

[0003] Existing fixing fixtures can only clamp and fix rectangular or cylindrical workpieces. The same fixture is not convenient for clamping and fixing both rectangular and cylindrical workpieces at the same time, and its scope of use is limited. Some fixtures can only clamp workpieces, and it is inconvenient to turn the workpiece over to facilitate welding operations on different parts of the workpiece. Therefore, a new type of laser welding fixture is proposed. Utility Model Content

[0004] The utility model aims to provide a novel laser welding fixture, which can be adapted to clamp and fix two types of workpieces, namely rectangular workpieces and columnar workpieces, is convenient for turning over the workpieces, and is easy to use.

[0005] The utility model aims to provide a new type of laser welding fixture, including an "L"-shaped base, a clamping device is arranged inside the base, and the clamping device includes a U-shaped frame, a rotating shaft is connected to the middle part of the left end of the U-shaped frame through a bearing, a gear is fixedly connected to the outer wall of the rotating shaft, a rack is meshedly connected to the outer wall of the gear, a driving rod is fixedly connected to the left end face of the rotating shaft, and the upper and lower ends of the driving rod are movably connected to connecting rods through a rotating shaft, and two sliding grooves distributed up and down are provided through the left end face of the U-shaped frame, and sliders are slidably connected to the insides of the two sliding grooves, and the left end faces of the two sliders are fixedly connected to an "L"-shaped support seat, and the other ends of the two connecting rods are movably connected to the two support seats through a rotating shaft, and the opposite sides of the two support seats are fixedly connected to the clamping seat, and the opposite sides of the two clamping seats are provided with a card groove.

[0006] In order to conveniently drive the U-shaped frame to rotate, as a preferred new type of laser welding fixture of the utility model, a motor is installed on the right end face of the base, and the output end of the motor passes through the base and is fixedly connected to the U-shaped frame.

[0007] In order to drive the rack to move, as a preferred new laser welding fixture of the utility model, the left end face inside the U-shaped frame is fixedly connected to a fixed plate, the lower end face of the fixed plate is installed with a cylinder, and the output end of the cylinder passes through the fixed plate and is fixedly connected to the rack.

[0008] In order to facilitate the limiting of the columnar workpiece, as a preferred embodiment of the new laser welding fixture of the utility model, the two slots are both set in a V shape.

[0009] In order to prevent the slider from detaching from the slide groove, as a preferred new laser welding fixture of the utility model, limit blocks are installed on the upper and lower end surfaces of the U-shaped frame, and the two limit blocks are respectively located at the open ends of the two slide grooves.

[0010] In order to increase the stability of the movement of the slider, as a preferred embodiment of a new laser welding fixture of the utility model, the right end surfaces of the two support seats are both in contact with the U-shaped frame.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] When the utility model clamps a rectangular workpiece, the rectangular workpiece is placed between two support seats; when clamping a columnar workpiece, the columnar workpiece is placed between two V-shaped grooves; then the cylinder is started to drive the rack to move, and the rack movement drives the gear to rotate. When the gear rotates, it drives the rotating shaft and the driving rod to rotate. When the driving rod rotates, it drives the two connecting rods to pull the two support seats and the slider to move relative to each other, clamping the workpiece; the motor is started to drive the U-shaped frame to rotate, thereby driving the clamping device and the workpiece to rotate at the same time, so as to flip the workpiece, thereby achieving the purpose of being able to adapt to the clamping and fixation of two types of workpieces, namely rectangular workpieces and columnar workpieces, making it convenient to turn over the workpiece and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the overall structure diagram of the utility model;

[0014] Figure 2 This is a structural diagram of the clamping device of the utility model;

[0015] Figure 3 It is a left-side structural diagram of the utility model;

[0016] Figure 4 It is the main structural diagram of the utility model.

[0017] In the figure: 1. base; 2. motor; 3. U-shaped frame; 4. slide groove; 5. slider; 6. support seat; 7. clamping seat; 8. rotating shaft; 9. driving rod; 10. connecting rod; 11. gear; 12. rack; 13. fixing plate; 14. cylinder; 15. V-shaped slot; 16. limit block. DETAILED DESCRIPTION

[0018] See also Figures 1 to 3A new type of laser welding fixture comprises an L-shaped base 1, a clamping device is arranged inside the base 1, and the clamping device comprises a U-shaped frame 3, a rotating shaft 8 is connected to the middle part of the left end of the U-shaped frame 3 through a bearing, a gear 11 is fixedly connected to the outer wall of the rotating shaft 8, a rack 12 is meshedly connected to the outer wall of the gear 11, a driving rod 9 is fixedly connected to the left end face of the rotating shaft 8, and the upper and lower ends of the driving rod 9 are movably connected to connecting rods 10 through rotating shafts, and two upper and lower distributed slide grooves 4 are provided through the left end face of the U-shaped frame 3, and sliders 5 are slidably connected inside the two slide grooves 4, and the left end faces of the two sliders 5 are fixedly connected to an L-shaped support seat 6, and the other ends of the two connecting rods 10 are movably connected to the two support seats 6 through rotating shafts, and the opposite sides of the two support seats 6 are fixedly connected to the clamping seats 7, and the opposite sides of the two clamping seats 7 are provided with card grooves 15.

[0019] In this embodiment: the rack 12 can be driven to move by the cylinder 14, and the movement of the rack 12 can drive the gear 11 to rotate. When the gear 11 rotates, it will drive the rotating shaft 8 and the driving rod 9 to rotate. When the driving rod 9 rotates, it will drive the two connecting rods 10 to pull the two supporting seats 6 and the slider 5 to move relative to each other. The workpiece can be clamped by the two clamping seats 7. When clamping a rectangular workpiece, the rectangular workpiece is placed between the two supporting seats 6. When clamping a columnar workpiece, the columnar workpiece is placed between the two V-shaped grooves 15.

[0020] As a technical optimization solution of the utility model, a motor 2 is installed on the right end surface of the base 1 , and the output end of the motor 2 passes through the base 1 and is fixedly connected to the U-shaped frame 3 .

[0021] In this embodiment: the U-shaped frame 3 can be driven to rotate by the motor 2.

[0022] As a technical optimization solution of the utility model, a fixing plate 13 is fixedly connected to the left end face inside the U-shaped frame 3, a cylinder 14 is installed on the lower end face of the fixing plate 13, and the output end of the cylinder 14 passes through the fixing plate 13 and is fixedly connected to the rack 12.

[0023] In this embodiment, the rack 12 can be driven to move by the cylinder 14 .

[0024] As a technical optimization solution of the present utility model, the two slots 15 are both arranged in a V shape.

[0025] In this embodiment, the V-shaped slot 15 can be used to conveniently limit the position of the columnar workpiece.

[0026] As a technical optimization solution of the present invention, limit blocks 16 are installed on both upper and lower end surfaces of the U-shaped frame 3 , and the two limit blocks 16 are respectively located at the open ends of the two slide grooves 4 .

[0027] In this embodiment, the two limit blocks 16 can prevent the slider 5 from being separated from the slide groove 4.

[0028] As a technical optimization solution of the present invention, the right end surfaces of the two support seats 6 are both in contact with the U-shaped frame 3 .

[0029] In this embodiment, by making the right end surfaces of the two support seats 6 abut against the U-shaped frame 3, the stability of the movement of the slider 5 can be increased.

[0030] Working principle: When clamping a rectangular workpiece, place the rectangular workpiece between the two support seats 6; when clamping a columnar workpiece, place the columnar workpiece between the two V-shaped grooves 15; then the cylinder 14 can drive the rack 12 to move; the movement of the rack 12 can drive the gear 11 to rotate; when the gear 11 rotates, it will drive the rotating shaft 8 and the driving rod 9 to rotate; when the driving rod 9 rotates, it will drive the two connecting rods 10 to pull the two support seats 6 and the slider 5 to move relative to each other; the workpiece can be clamped by the two clamping seats 7; then the motor 2 drives the U-shaped frame 3, the clamping device and the workpiece to rotate, so as to turn the workpiece over.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel laser welding fixture, comprising an L-shaped base (1), characterized in that: A clamping device is provided inside the base (1), and the clamping device comprises a U-shaped frame (3). A rotating shaft (8) is connected to the middle of the left end of the U-shaped frame (3) via a bearing. A gear (11) is fixedly connected to the outer wall of the rotating shaft (8). A rack (12) is meshedly connected to the outer wall of the gear (11). A driving rod (9) is fixedly connected to the left end surface of the rotating shaft (8). Both upper and lower ends of the driving rod (9) are movably connected to connecting rods (10) via rotating shafts. The U-shaped frame (3) is provided with a plurality of connecting rods (10) and a plurality of connecting rods (10) arranged on the upper and lower ends of the driving rods (9). 3) The left end surface of the interior is provided with two slide grooves (4) distributed up and down, the interiors of the two slide grooves (4) are slidably connected with sliders (5), the left end surfaces of the two sliders (5) are fixedly connected with "L"-shaped support seats (6), the other ends of the two connecting rods (10) are movably connected with the two support seats (6) through a rotating shaft, the opposite sides of the two support seats (6) are fixedly connected with a clamping seat (7), and the opposite sides of the two clamping seats (7) are provided with a clamping groove (15).

2. A new laser welding fixture according to claim 1, characterized in that: A motor (2) is installed on the right end surface of the base (1), and an output end of the motor (2) passes through the base (1) and is fixedly connected to the U-shaped frame (3).

3. The novel laser welding fixture according to claim 1 is characterized in that: A fixing plate (13) is fixedly connected to the left end surface inside the U-shaped frame (3), a cylinder (14) is installed on the lower end surface of the fixing plate (13), and an output end of the cylinder (14) passes through the fixing plate (13) and is fixedly connected to the rack (12).

4. The novel laser welding fixture according to claim 1 is characterized in that: The two card slots (15) are both arranged in a V shape.

5. The novel laser welding fixture according to claim 1 is characterized in that: Limit blocks (16) are installed on both upper and lower end surfaces of the U-shaped frame (3), and the two limit blocks (16) are respectively located at the open ends of the two slide grooves (4).

6. The novel laser welding fixture according to claim 1 is characterized in that: The right end surfaces of the two support seats (6) are both in contact with the U-shaped frame (3).

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