Clamping tool for laser cladding

Abstract

The utility model relates to the technical field of clamping tools, and discloses a clamping tool for laser cladding, which comprises a turntable and a base, a bracket is upwards formed on one side of the base, and the turntable is arranged on the bracket; the pair of universal chucks are symmetrically arranged on the clamping structures, the pair of clamping structures are arranged on the rotating disc in a mutually perpendicular mode, and one end of a workpiece is clamped and fixed to the center of the rotating disc through the clamping structures and the universal chucks; the clamping structure is arranged on the other side of the base, and after the distance between the clamping structure and the rotary disc is adjusted, the workpiece is clamped and fixed. Compared with the prior art, the clamping device has the advantages that workpieces in irregular shapes can be stably clamped and fixed through the universal chuck and the clamping structure, the clamping range is wider, the applicability is higher, the workpieces can be automatically clamped and fixed to the center of the rotary disc through the clamping structure, and the clamping device is more convenient to use. And the laser cladding gun can perform laser cladding work on the workpiece conveniently, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping tools, in particular to a clamping tool for laser cladding. Background Art

[0002] Laser cladding is an important and advanced surfacing repair technology in current industrial production. It heats the metal powder ejected from the gun head by a laser beam with a high energy density, melts it and covers it on the workpiece to form a uniform and hard coating, which can effectively improve the wear resistance and corrosion resistance of the surface of metal workpieces.

[0003] Most of the existing clamping tools for laser cladding include a turntable, chucks and fasteners. The chucks can only clamp round bars or plates. When the workpiece to be laser-clad is irregularly shaped, workers need to fix it by customizing, which is very time-consuming and complex. Moreover, the workpiece may deviate from the center during rotation, resulting in incorrect laser cladding positions. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the above technical difficulties and provide a clamping tool for laser cladding, which can clamp round bars or plates, and can also clamp and fix irregularly shaped workpieces at the center of the turntable for laser cladding.

[0005] To solve the above technical problems, the technical solution provided by the utility model is as follows:

[0006] A clamping tool for laser cladding, comprising:

[0007] A turntable and a base; a bracket is formed upward on one side of the base, and the turntable is rotatably arranged on the bracket;

[0008] A clamping structure and universal chucks. A pair of universal chucks are symmetrically arranged on the clamping structure, and a pair of clamping structures are arranged perpendicular to each other on the turntable. One end of the workpiece is clamped and fixed at the center of the turntable through the clamping structure and the universal chucks;

[0009] A clamping structure, arranged on the other side of the base. After adjusting the distance from the turntable, the workpiece is clamped and fixed.

[0010] As an improvement, it further includes a front disc, a rotating shaft and a connecting column; the front disc is connected and fixed to the side of the turntable facing away from the bracket through a plurality of connecting columns arranged on the outer edge, and a rotating shaft rotatably connected to the bracket is formed on the other side of the turntable.

[0011] As an improvement, the clamping structure includes a left-right screw rod, a driving motor and a bearing seat; the driving motor and the bearing seat are arranged along the outer edge of the turntable and are both fixed between the front disc and the turntable, and a counterweight adapted to the driving motor is provided on the bearing seat. One end of the left-right screw rod is rotatably connected to the bearing seat, and the other end is connected to the driving end of the driving motor.

[0012] As an improvement, the universal chuck includes a rotating clamping block, a positioning rod and a receiving seat; four strip-shaped chutes are circumferentially arranged on the front disk, the positioning rods are correspondingly arranged and movably fitted in the chutes, and are in threaded fit with the left and right-handed screw rods. The bottom of the receiving seat is fixedly connected to the end of the positioning rod. A limiting baffle is formed on the positioning rod, and the front disk is clamped between the limiting baffle and the receiving seat. The rotating clamping block is rotatably connected to the receiving seat, and an arc-shaped notch is formed in the middle of the clamping surface for fixing the curved surface.

[0013] The advantages of the present utility model compared with the prior art are as follows:

[0014] 1. The present utility model can automatically clamp and fix the workpiece at the center of the turntable through the clamping structure, which is convenient for the laser cladding gun to perform laser cladding work on the workpiece, and is more convenient.

[0015] 2. The present utility model can stably clamp and fix workpieces with irregular shapes through the universal chuck and the clamping structure, with a wider clamping range and stronger applicability. Description of the Drawings

[0016] Figure 1 is the structural schematic diagram of the present utility model Figure 1 。

[0017] Figure 2 is the structural schematic diagram of the present utility model Figure 2 。

[0018] Figure 3 is the cross-sectional schematic diagram of the present utility model.

[0019] Figure 4 is the structural schematic diagram of the clamping structure of the present utility model.

[0020] Figure 5 is the structural schematic diagram of the universal chuck of the present utility model.

[0021] As shown in the figure: 1. Front disk; 2. Turntable; 3. Connecting column; 4. Chute; 5. Base; 6. Rotating motor; 7. Driving motor; 8. Bearing seat; 9. Left and right-handed screw rod; 10. Fixed plate; 11. Spacing adjustment motor; 12. Clamping rod; 13. Clamping disk; 14. Rotating clamping block; 15. Positioning rod; 16. Receiving seat; 17. Spacing adjustment screw rod; 18. Groove rail; 19. Bracket; 20. Rotating shaft; 21. Counterweight; 22. Limiting baffle. Detailed Embodiment

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more. Additionally, the term "comprising" and any variation thereof are intended to cover non-exclusive inclusion.

[0023] The following further elaborates on the present utility model with reference to the drawings.

[0024] A clamping tooling for laser cladding, as Figure 1 , 2 shown, includes:

[0025] A base 5, with a bracket formed upward on one side and a groove rail 18 formed on the top surface of the other side (the cross-section of the groove rail 18 is an isosceles trapezoid with a smaller upper part and a larger lower part, as Figure 3 shown, and arranged towards the bracket), and a fixing plate 10 (as Figure 2 shown) is a plate body formed on the base and arranged at one end of the groove rail 18 (the end towards the bracket).

[0026] A front disc 1, a turntable 2, a connecting column 3, and a rotating motor 6; four strip-shaped sliding grooves 4 are circumferentially arranged on the front disc 1 (one end of the sliding groove 4 points to the center of the front disc 1), and are fixedly connected to the turntable 2 through four connecting columns 3 arranged on the outer edge (the connecting columns 3 are arranged between two adjacent sliding grooves 4). A rotating shaft 20 is arranged on the turntable 2 and is rotatably connected to the bracket 19. The rotating motor 6 is fixed on the bracket 19, and its driving end is fixedly connected to the rotating shaft 20.

[0027] A clamping structure, as Figure 4As shown in the figure, it includes left - and - right - hand lead screws 9, a driving motor 7, and bearing seats 8. The driving motor 7 and the bearing seats 8 are arranged along the outer edge of the turntable and are both fixed between the front plate 1 and the turntable 2. A counterweight 21 adapted to the driving motor 7 is provided on the bearing seat 8 to maintain balance. The two ends of the left - and - right - hand lead screws 9 have opposite thread directions, and one end is rotatably connected to the bearing seat 8, while the other end is connected to the driving end of the driving motor 7. A pair of clamping structures are arranged perpendicular to the corresponding chutes 4, and the two left - and - right - hand lead screws 9 are arranged in a staggered and crossed manner by different connection positions on the driving motor 7 (one is closer to the front plate 1).

[0028] Universal chuck, such as Figure 5 As shown in the figure, it includes a rotating clamping block 14, a positioning rod 15, a receiving seat 16, and a limit baffle 22. The positioning rods 15 are arranged correspondingly and are movably fitted in the chutes 4, and are thread - fitted with one end of the left - and - right - hand lead screws 9. The receiving seat 16 is a plate - like structure with a support convex block formed on one side of the top and a circular convex column formed on the other side of the top (towards the circular side). The bottom of the receiving seat 16 is fixedly connected to the end of the positioning rod 15. A limit baffle 22 is formed on the positioning rod 15, and the front plate 1 is clamped between the limit baffle 22 and the receiving seat 16 (sharing the stress borne by the left - and - right - hand lead screws 9). The rotating clamping block 14 is movably sleeved on the circular convex column of the receiving seat 16. The clamping surface is a plane with an arc - shaped notch formed in the middle, and the back of the clamping surface is a circular curved surface that is movably fitted with the support convex block (the specific shape is as Figure 5 shown in the figure). After the universal chuck clamps the workpiece, the circular convex column and the support convex block support the rotating clamping block 14 at the same time. Two pairs of universal chucks are symmetrically arranged on the left - and - right - hand lead screws 9 of the two clamping structures respectively.

[0029] Clamping rod 12, clamping disc 13, distance - adjusting screw 17, and distance - adjusting motor 11. The distance - adjusting motor 11 is fixed on the base 5 at the other end of the groove rail 18. One end of the distance - adjusting screw 17 is rotatably connected to the fixing plate 10, and the other end is connected to the driving end of the distance - adjusting motor 11. The bottom end of the clamping rod 12 is movably sleeved in the groove rail 18 and is thread - fitted with the distance - adjusting screw 17. The clamping disc 13 is rotatably connected to the top end of the clamping rod 12 and is arranged corresponding to the center of the front plate 1. After the distance - adjusting motor 11 works, the clamping rod 12 moves towards or away from the front plate 1 along the groove rail 18, and clamps and fixes the workpiece through the clamping disc 13.

[0030] In the specific implementation of this embodiment:

[0031] Place the workpiece between the turntable and the clamping disc 13, then start the driving motor 7 of the clamping structure to make the universal chuck clamp one end of the workpiece to the center of the front plate 1. Then start the distance - adjusting motor 11 to adjust the distance between the clamping disc 13 and the front plate 1, so that both ends of the workpiece are tightly clamped between the front plate 1 and the clamping disc 13. After fixing the laser cladding gun, perform laser cladding on the workpiece that rotates with the turntable.

[0032] Specifically, when the workpiece is a circular rod, the side wall of the end of the workpiece is clamped by the arc-shaped notches of two pairs of universal chucks; when the workpiece is a plate, the plate is fixed by the flat part of the clamping surface of a pair of universal chucks; when the workpiece is an irregular shape, after the two pairs of universal chucks are tightened, they will automatically rotate and adjust the angle of the rotating block 14 according to the direction of the clamping surface, so that the workpiece is fixed at the center of the front disc 1. After the distance-adjusting motor 11 is started, the workpiece is tightly clamped between the front disc 1 and the clamping disc 13.

[0033] The above description has been made on the present invention and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the gist of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A clamping tooling for laser cladding, characterized in that Comprising: A turntable (2) and a base (5); a bracket (19) is formed upward on one side of the base (5), and the turntable (2) is arranged on the bracket (19); A clamping structure and universal chucks. A pair of universal chucks are symmetrically arranged on the clamping structure, and the pair of clamping structures are arranged perpendicular to each other on the turntable (2). One end of the workpiece is clamped and fixed at the center of the turntable (2) through the clamping structure and the universal chucks; A clamping structure, arranged on the other side of the base (5). After adjusting the distance from the turntable (2), the workpiece is clamped and fixed.

2. The clamping tooling for laser cladding according to claim 1, wherein: It further includes a front disc (1), a rotating shaft (20) and a connecting column (3); the front disc (1) and the turntable (2) are connected and fixed together by a plurality of connecting columns (3) arranged on the outer edge, and a rotating shaft (20) rotatably connected to the bracket (19) is formed on the other side of the turntable (2).

3. The clamping tooling for laser cladding according to claim 2, wherein: The clamping structure includes a left - right hand screw rod (9), a driving motor (7) and a bearing seat (8); the driving motor (7) and the bearing seat (8) are arranged along the outer edge of the turntable and are both fixed between the front disc (1) and the turntable (2), and a counterweight (21) adapted to the driving motor (7) is provided on the bearing seat (8). One end of the left - right hand screw rod (9) is rotatably connected to the bearing seat (8), and the other end is connected to the driving end of the driving motor (7).

4. The clamping tooling for laser cladding according to claim 3, wherein: The universal chuck includes a rotating clamping block (14), a positioning rod (15) and a receiving seat (16); four strip - shaped sliding grooves (4) are circumferentially arranged on the front disc (1). The positioning rod (15) is correspondingly arranged and movably fitted in the sliding grooves (4), and is in threaded cooperation with the left - right hand screw rod (9). The bottom of the receiving seat (16) is connected and fixed to the end of the positioning rod (15). A limiting baffle (22) is formed on the positioning rod (15), and the front disc (1) is clamped between the limiting baffle (22) and the receiving seat (16). The rotating clamping block (14) is rotatably connected to the receiving seat (16), and an arc - shaped notch is formed in the middle of the clamping surface.

5. The clamping tooling for laser cladding according to claim 1, characterized in that: The clamping structure includes a clamping rod (12), a clamping disc (13), a groove rail (18), an adjusting screw rod (17), a fixing plate (10) and an adjusting motor (11); the fixing plate (10) and the adjusting motor (11) are both fixed on the base (5). One end of the adjusting screw rod (17) is rotatably connected to the fixing plate (10), and the other end is connected to the driving end of the adjusting motor (11). The groove rail (18) is correspondingly arranged on the base (5) for the adjusting screw rod (17). The bottom end of the clamping rod (12) is movably sleeved in the groove rail (18) and is in threaded cooperation with the adjusting screw rod (17). The clamping disc (13) is rotatably connected to the top end of the clamping rod (12) and is arranged corresponding to the center of the front disc (1).

6. The clamping tooling for laser cladding according to claim 2, wherein: It further includes a rotating motor (6), fixed on the bracket (19), and the driving end is connected to the rotating shaft (20) of the turntable (2).

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