Laser welding clamp with accurate positioning function

Abstract

The utility model discloses a laser welding fixture with accurate positioning, which comprises a base, a first clamping component and a second clamping component are arranged on the upper surface of the base, the first clamping component and the second clamping component are arranged at symmetrical positions, the first clamping component and the second clamping component both comprise movable bases, and the movable bases are arranged on the base. A supporting plate is arranged above the movable base, a connecting block is fixedly installed on one side of the supporting plate, and an adaptive shell is arranged on the side, away from the supporting plate, of the connecting block. A plurality of adaptive sliding rods are arranged, the adaptive sliding rods can be matched to form proper shapes according to different surface shapes of workpieces in the clamping process, and therefore the workpiece can be clamped conveniently. The workpiece fixing device can fix a workpiece and has good coping capacity when facing special-shaped workpieces and workpieces with uneven surfaces, the applicability of the device is improved, a clamp does not need to be customized repeatedly, and the cost of an enterprise is reduced.

Description

Technical Field

[0001] The utility model relates to the field of laser welding, in particular to a laser welding fixture with accurate positioning. Background Art

[0002] Advantages of laser welding: It makes up for the shortcomings of traditional gas welding and cold thickening in repairing fine surfaces. It will not cause deformation of the mold or depression around the repaired parts. It can be welded in narrow parts and repaired in deep cavities without damaging the surrounding side walls. It will not burn the edges when repairing fine corners. It can be observed and operated under a special industrial microscope, and small parts can be seen at a glance. Various imported special welding wires are suitable for various mold materials. Mirror polishing and etching can be performed after welding. Special welding wires are used to repair coal quenching molds. The repaired parts can achieve the same hardness as the mold, which can greatly save the cost of materials, manpower and time for mold modification, mold repair or special mining of workpieces.

[0003] For laser welding, traditional fixtures often need to be customized according to the shape of the object being processed. They lack the ability to clamp special-shaped parts, and a large clamping force is required to clamp the workpiece during the clamping process. They cannot provide protection for some easily deformed workpieces.

[0004] Therefore, it is necessary to propose a laser welding fixture with precise positioning to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a laser welding fixture with accurate positioning to solve the above-mentioned problem of lack of ability to cope with special-shaped parts.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a precisely positioned laser welding fixture, comprising a base, a first clamping component and a second clamping component are provided on the upper surface of the base, the first clamping component and the second clamping component are in symmetrical positions, the first clamping component and the second clamping component both comprise a movable base, a support plate is provided above the movable base, a connecting block is fixedly installed on one side of the support plate, an adapting shell is provided on the side of the connecting block away from the support plate, a convex ring is fixedly installed on the side of the adapting shell away from the second slide groove and close to the connecting block, a plurality of clamping plates are provided on the convex ring, the plurality of clamping plates are closely distributed and fill the surface of the convex ring, an adapting slide rod is slidably provided inside the clamping plates, a spring is fixedly installed on one end of the adapting slide rod, and the spring is fixedly installed inside the adapting shell.

[0007] Preferably, symmetrical guide rods are fixedly installed on the upper surface of the mobile base, a hydraulic rod is fixedly installed in the middle of the mobile base, the telescopic end of the hydraulic rod is fixedly installed on the support plate, the guide rods are slidably clamped at both ends of the support plate, and limit blocks are fixedly installed on the guide rods.

[0008] Preferably, a plurality of sliding blocks are fixedly mounted on the lower surface of the movable base, a plurality of first sliding grooves corresponding to the sliding blocks are opened on the upper surface of the base, and the sliding blocks are slidably clamped inside the corresponding first sliding grooves.

[0009] Preferably, a second sliding groove is provided on the connecting block, and a convex ring is fixedly mounted on a side of the adapting housing close to the connecting block, and the convex ring is slidably clamped inside the second sliding groove.

[0010] Preferably, support blocks are fixedly mounted at both ends of one side of the upper surface of the base, and a positive screw rod and a negative screw rod are rotatably mounted at the middle position of the two support blocks.

[0011] Preferably, the positive screw rod and the negative screw rod are integrally formed, and a first gear is fixedly installed at the connection between the positive screw rod and the negative screw rod, a moving block is fixedly installed on one side of the moving base, one of the moving blocks is connected to the positive screw rod through a thread hole, and the other moving block is connected to the moving base through a thread hole, a first motor is fixedly installed on one side of the upper surface of the base, a second gear is fixedly installed on the driving end of the first motor, and the second gear is meshed with the first gear.

[0012] Preferably, a second motor is fixedly mounted in the middle of the support plate, and a driving end of the second motor is fixedly mounted in the middle of the adapter housing.

[0013] The technical effect of the utility model is that: by setting a plurality of adaptable slide bars, the adaptable slide bars can adapt to a suitable shape according to the different surface shapes of the workpiece during the clamping process, so as to fix the workpiece, and can also have a good coping ability when facing special-shaped workpieces and workpieces with uneven surfaces, thereby increasing the applicability of the device, eliminating the need for repeated customization of the clamp, and reducing the cost of the enterprise; the device only needs to make the first clamping component and the second clamping component just touch the workpiece, and the plurality of adaptable slide bars will play a supporting and fixing role to prevent the workpiece from rotating or sliding, and does not require excessive clamping force, thereby avoiding the situation where the clamp damages the workpiece, and increasing the fault tolerance of the device; by setting a first motor, a guide rod and a second motor, the device can drive the workpiece to perform various axial movements, wherein the first motor and the second motor both adopt servo motors, so that the rotation angle is accurate, and the use of a laser welding head can provide accurate welding positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the laser welding fixture with precise positioning of the utility model.

[0015] Figure 2 It is a structural schematic diagram of the first clamping component in the utility model from a first viewing angle.

[0016] Figure 3 This is a structural schematic diagram of the first clamping component in the utility model from another perspective.

[0017] In the figure: 1. base; 2. first clamping part; 3. second clamping part; 4. first motor; 5. positive screw; 6. first gear; 11. first slide; 12. support block; 21. mobile base; 22. slider; 23. hydraulic rod; 24. guide rod; 25. support plate; 26. second motor; 27. connecting block; 28. second slide; 29. ​​mobile block; 30. adapter shell; 31. convex ring; 32. card plate; 33. adapter slide; 34. spring; 41. second gear; 51. negative screw. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 1-3 As shown, the utility model provides a precisely positioned laser welding fixture, which includes a base 1, and a first clamping component 2 and a second clamping component 3 are provided on the upper surface of the base 1. The first clamping component 2 and the second clamping component 3 are in symmetrical positions. The first clamping component 2 and the second clamping component 3 both include a movable base 21, and a plurality of sliders 22 are fixedly mounted on the lower surface of the movable base 21. A plurality of first slide grooves 11 corresponding to the sliders 22 are provided on the upper surface of the base 1, and the sliders 22 are slidably clamped in the corresponding first slide grooves 11. The plurality of sliders 22 and the first slide grooves 11 are provided for use in conjunction to make the first clamping component 2 and the second clamping component 3 more stable during movement.

[0020] Support blocks 12 are fixedly installed at both ends of one side of the upper surface of the base 1, and a positive screw rod 5 and a negative screw rod 51 are rotatably installed in the middle position of the two support blocks 12. The positive screw rod 5 and the negative screw rod 51 are integrally formed, and a first gear 6 is fixedly installed at the connection between the positive screw rod 5 and the negative screw rod 51. A moving block 29 is fixedly installed on one side of the mobile base 21, one of the moving blocks 29 is connected to the positive screw rod 5 through a thread hole, and the other moving block 29 is connected to the mobile base 21 through a thread hole. A motor 4, a second gear 41 is fixedly installed on the driving end of the first motor 4, and the second gear 41 is meshed with the first gear 6. During processing, the workpiece is placed in the middle position between the first clamping component 2 and the second clamping component 3, and the first motor 4 is controlled to work. At this time, the first motor 4 drives the second gear 41 and the first gear 6 to rotate, and then drives the positive screw rod 5 and the reverse screw rod 51 to rotate. At this time, the two moving blocks 29 move toward each other, and then drive the first clamping component 2 and the second clamping component 3 to move toward each other, so as to achieve the purpose of clamping the workpiece.

[0021] A support plate 25 is provided above the mobile base 21, and a connecting block 27 is fixedly installed on one side of the support plate 25. An adapter shell 30 is provided on the side of the connecting block 27 away from the support plate 25. A second slide groove 28 is opened on the connecting block 27, and a convex ring 31 is fixedly installed on the side of the adapter shell 30 close to the connecting block 27. The convex ring 31 is slidably clamped in the inside of the second slide groove 28. A second motor 26 is fixedly installed in the middle of the support plate 25, and the driving end of the second motor 26 is fixedly installed in the middle of the adapter shell 30. When laser welding is performed, it is often necessary to process the upper and lower ends of the workpiece, so the second motor 26 is provided to drive the adapter shell 30 to rotate, and then drive the workpiece clamped thereon to rotate. The cooperation between the convex ring 31 and the second slide groove 28 makes the rotation of the adapter shell 30 more stable.

[0022] A symmetrical guide rod 24 is fixedly installed on the upper surface of the mobile base 21, a hydraulic rod 23 is fixedly installed in the middle of the mobile base 21, the telescopic end of the hydraulic rod 23 is fixedly installed on the support plate 25, the guide rod 24 is slidably clamped at both ends of the support plate 25, and a limit block is fixedly installed on the guide rod 24. The provision of the hydraulic rod 23 facilitates the vertical displacement of the workpiece during processing.

[0023] By setting the first motor 4, the guide rod 24 and the second motor 26, the device can drive the workpiece to perform various axial movements, wherein the first motor 4 and the second motor 26 are both servo motors, so that the rotation angle is accurate, and the use of a laser welding head can provide accurate welding positioning.

[0024] A convex ring 31 is fixedly installed on the side of the adapter shell 30 away from the second slide groove 28 and close to the connecting block 27. A plurality of clamping plates 32 are opened on the convex ring 31. The plurality of clamping plates 32 are closely distributed and fill the surface of the convex ring 31. The interior of the clamping plates 32 is slidably clamped with an adapter slide bar 33. A spring 34 is fixedly installed at one end of the adapter slide bar 33. The spring 34 is fixedly installed inside the adapter shell 30. When in use, the workpiece is placed in the middle position of the first clamping component 2 and the second clamping component 3, and the first motor 4 is controlled to move the first clamping component 2 and the second clamping component 3 toward each other. At this time, the plurality of adapter slide bars 33 will contact the surface of the workpiece, and the adapter slide bars 33 will shrink according to the shape of the clamped object. The adapter slide bars 33 that are not squeezed will remain in their original state, and then the adapter slide bars 33 as a whole will depict the shape of the workpiece.

[0025] Traditional clamps often need to be customized according to the shape of the object being processed during use. They lack the ability to clamp special-shaped parts, and a large clamping force is required to clamp the workpiece during the clamping process. They cannot provide protection for some easily deformed workpieces. Therefore, by providing multiple adaptable slide bars 33, the adaptable slide bars 33 can adapt to a suitable shape according to the surface shape of the workpiece during the clamping process, and can fix the workpiece. They can also have good coping capabilities when facing special-shaped workpieces and workpieces with uneven surfaces, thereby increasing the applicability of the device, eliminating the need for repeated customization of clamps, and reducing enterprise costs.

[0026] Furthermore, the device only needs to make the first clamping component 2 and the second clamping component 3 just contact the workpiece, and multiple adaptive slide rods 33 will play a supporting and fixing role to prevent the workpiece from rotating or sliding. Excessive clamping force is not required to avoid the situation where the fixture damages the workpiece, thereby increasing the fault tolerance of the device.

Claims

1. A laser welding fixture with precise positioning, characterized by: The invention comprises a base (1), wherein a first clamping component (2) and a second clamping component (3) are provided on the upper surface of the base (1), wherein the first clamping component (2) and the second clamping component (3) are in symmetrical positions, and the first clamping component (2) and the second clamping component (3) both comprise a movable base (21), wherein a support plate (25) is provided above the movable base (21), a connecting block (27) is fixedly mounted on one side of the supporting plate (25), and an adaptor is provided on a side of the connecting block (27) away from the supporting plate (25). A housing (30), a convex ring (31) is fixedly installed on one side of the adapter housing (30) away from the second slide groove (28) and close to the connecting block (27), a plurality of clamping plates (32) are opened on the convex ring (31), the plurality of clamping plates (32) are closely distributed and fill the surface of the convex ring (31), and an adapter slide rod (33) is slidably clamped inside the clamping plates (32), a spring (34) is fixedly installed at one end of the adapter slide rod (33), and the spring (34) is fixedly installed inside the adapter housing (30).

2. The laser welding fixture with precise positioning according to claim 1, characterized in that: Symmetrical guide rods (24) are fixedly mounted on the upper surface of the mobile base (21), a hydraulic rod (23) is fixedly mounted in the middle of the mobile base (21), the telescopic end of the hydraulic rod (23) is fixedly mounted on a support plate (25), the guide rods (24) are slidably clamped at both ends of the support plate (25), and a limit block is fixedly mounted on the guide rods (24).

3. The laser welding fixture with precise positioning according to claim 1, characterized in that: A plurality of sliding blocks (22) are fixedly mounted on the lower surface of the movable base (21), a plurality of first sliding grooves (11) corresponding to the sliding blocks (22) are provided on the upper surface of the base (1), and the sliding blocks (22) are slidably mounted inside the corresponding first sliding grooves (11).

4. The laser welding fixture with precise positioning according to claim 1, characterized in that: The connecting block (27) is provided with a second sliding groove (28), and a convex ring (31) is fixedly mounted on one side of the adapting housing (30) close to the connecting block (27), and the convex ring (31) is slidably clamped inside the second sliding groove (28).

5. The laser welding fixture with precise positioning according to claim 1, characterized in that: Support blocks (12) are fixedly mounted at both ends of one side of the upper surface of the base (1), and a positive screw rod (5) and a negative screw rod (51) are rotatably mounted in the middle of the two support blocks (12).

6. The laser welding fixture with accurate positioning according to claim 5, characterized in that: The positive screw rod (5) and the negative screw rod (51) are integrally formed, and a first gear (6) is fixedly installed at the connection between the positive screw rod (5) and the negative screw rod (51). A moving block (29) is fixedly installed on one side of the moving base (21), one of the moving blocks (29) is connected to the positive screw rod (5) through a threaded hole, and the other moving block (29) is connected to the moving base (21) through a threaded hole. A first motor (4) is fixedly installed on one side of the upper surface of the base (1), and a second gear (41) is fixedly installed on the driving end of the first motor (4), and the second gear (41) is meshed with the first gear (6).

7. The laser welding fixture with precise positioning according to claim 1, characterized in that: A second motor (26) is fixedly mounted in the middle of the support plate (25), and a driving end of the second motor (26) is fixedly mounted in the middle of the adapter housing (30).

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