Universal radial welding seam laser welding coaxial jacking mechanism

Abstract

The invention discloses a universal radial weld laser welding coaxial jacking mechanism, which belongs to the technical field of laser welding, and comprises an arch-shaped support frame, a clamping assembly and a jacking assembly, the clamping assembly is movably arranged at one end of the arch-shaped supporting frame, and the jacking assembly is movably arranged at the other end of the arch-shaped supporting frame. The axis of the clamping assembly coincides with the axis of the jacking assembly. One end of the clamping assembly is connected with a three-jaw chuck on the laser machine, the other end of the clamping assembly is connected with a tool for clamping a product to be welded, and the jacking assembly jacks the product to be welded. The clamping assembly and the jacking assembly can be matched with special tools of different welding products, and the special tools are high in assembly precision and reliable in connection; the concentricity of welded products can be effectively guaranteed, circumferential welding of the products can be guaranteed, interference is avoided, and the diversified product welding requirements are met.

Description

Technical Field

[0001] The invention belongs to the technical field of laser welding, and in particular relates to a universal radial weld laser welding coaxial tightening mechanism. Background Art

[0002] Laser welding has been used more and more frequently in the product processing process in recent years, and the products and quantities involved are also increasing. Laser welding has reliable welding quality, fast processing efficiency, and relatively low dependence on operator skills. Therefore, laser welding is widely used in new product designs. However, due to the diversity of products, any welding method may require a large number of special tooling, which greatly affects the production cost and cycle. The relevant clamping mechanism is generally a fixed structure of the equipment, and the concentricity between the top and the chuck is often not ideal; because the three-jaw chuck is a 0-90° flip type, its horizontal position is often not easy to guarantee. Summary of the invention

[0003] The object of the present invention is to provide a universal radial weld laser welding coaxial clamping mechanism to address the above-mentioned deficiencies in the prior art, so as to solve the problem of poor universality of the existing clamping mechanism.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A universal radial weld laser welding coaxial tightening mechanism, comprising an arched support frame, a holding assembly and a tightening assembly; the holding assembly is movably arranged at one end of the arched support frame, and the tightening assembly is movably arranged at the other end of the arched support frame; and the axis of the holding assembly coincides with the axis of the tightening assembly;

[0006] One end of the holding component is connected to the three-jaw chuck on the laser machine, and the other end of the holding component is connected to a tooling clamping the product to be welded, and the clamping component clamps the product to be welded.

[0007] Further, the holding assembly includes a mounting seat, two rolling bearings, a first thrust bearing, a second thrust bearing, a tail handle and a nut;

[0008] One end of the mounting seat is embedded in one end of the arch support frame; the other end of the mounting seat is threadedly connected to the tail handle; a first thrust bearing is provided at one end of the tail handle, the first thrust bearing is located between the tail handle and the arch support frame, and the first thrust bearing is in contact with a side surface of one end of the arch support frame; the arch support frame has two rolling bearings built in, and the two inner rings of the rolling bearings are connected to the shaft on the mounting seat; one side of the second thrust bearing is attached to the other side surface of one end of the arch support frame, and a flange is provided on the other side of the second thrust bearing; the nut is threadedly connected to one end of the mounting seat close to the tail handle.

[0009] Furthermore, the tail handle is clamped on the three-jaw chuck.

[0010] Furthermore, the mounting seat is provided with a positioning hole and a threaded connection hole; tooling of different products is positioned through the positioning hole and fixed to the mounting seat through the threaded connection hole.

[0011] Furthermore, the outer diameters of the two rolling bearings are connected to the inner hole at one end of the arched support frame.

[0012] Furthermore, the inner diameters of the two rolling bearings are connected to the small shaft of the mounting seat, and the second thrust bearing is connected to the large shaft of the mounting seat.

[0013] Furthermore, the tightening assembly includes a seat, an adjusting shaft, a floating head, a third thrust bearing, a clamping nut and a tightening block;

[0014] A guide seat is provided at the other end of the bow-shaped support frame; the guide seat has the adjustment shaft built in, and the adjustment shaft is threadedly connected to the bow-shaped support frame; a floating head is built in one end of the adjustment shaft close to the supporting component, and the third thrust bearing is placed in the inner groove of the floating head through the clamping nut, and the tightening block is connected to the inner hole of the third thrust bearing.

[0015] Furthermore, the tightening block is press-fittedly connected to the third thrust bearing.

[0016] Furthermore, the floating head is placed on the tightening block, and the floating head performs angular and rotational motions.

[0017] Furthermore, the guide seat is connected to the other end of the arch support frame through screws and cylindrical pins.

[0018] The universal radial weld laser welding coaxial tightening mechanism provided by the present invention has the following beneficial effects:

[0019] 1. The present invention solves the problem of non-concentricity between the laser machine center and the three-jaw chuck. Through the coaxial tightening mechanism, not only can the concentricity be effectively guaranteed, but also the three-jaw chuck can be turned 0-90° for welding products without interference, thus meeting the welding needs of various products.

[0020] 2. The arrangement of the rolling bearing and the thrust bearing of the present invention ensures that the coaxial tightening mechanism supported by the three-jaw chuck has good movement performance, small friction resistance and low wear during movement. The tail handle, mounting seat, special tooling, assembly to be welded, and the tightening block rotate synchronously with the three-jaw chuck, and the bow-shaped support frame, adjusting shaft, guide seat and floating head are relatively still, thereby ensuring circumferential welding of the product.

[0021] 3. The mounting seat of the present invention is provided with positioning holes and threaded connection holes to ensure the assembly accuracy and reliable connection of the special tooling.

[0022] 4. The floating head of the present invention is placed on the tightening block, making the product tightening method more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the universal radial weld laser welding coaxial tightening mechanism of the present invention.

[0024] Figure 2 It is a cross-sectional view of the universal radial weld laser welding coaxial tightening mechanism of the present invention.

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the universal radial weld laser welding coaxial tightening mechanism of the present invention.

[0026] Among them, 1. bow-shaped support frame; 2. floating head; 3. mounting seat; 4. rolling bearing; 5. third thrust bearing; 6. guide seat; 7. tightening block; 8. clamping nut; 9. screw; 10. adjusting shaft; 11. cylindrical pin; 12. nut; 13. tail handle; 14. first thrust bearing; 15. second thrust bearing; 16. three-jaw chuck. DETAILED DESCRIPTION

[0027] The specific implementation modes of the present invention are described below so that those skilled in the art can understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific implementation modes. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, these changes are obvious, and all inventions and creations utilizing the concept of the present invention are protected.

[0028] Example 1

[0029] A universal radial weld laser welding coaxial tightening mechanism of this embodiment, referring to Figure 1 , Figure 2 and Figure 3 It includes a bow-shaped support frame 1, a supporting assembly and a tightening assembly; the supporting assembly is movably arranged at one end of the bow-shaped support frame 1, and the tightening assembly is movably arranged at the other end of the bow-shaped support frame 1; and the axis center of the supporting assembly coincides with the axis center of the tightening assembly.

[0030] During the specific operation, one end of the holding component is connected to the three-jaw chuck 16 on the laser machine, the special tooling for the product to be welded is clamped and positioned on the holding component, and the product is tightened by the tightening component. The three-jaw chuck 16 flips the welding product by 0-90°, which can not only effectively ensure concentricity, but also ensure circumferential welding of the product without interference, thus meeting the diverse product welding needs.

[0031] This embodiment provides a preferred solution for the support assembly to achieve the clamping and positioning of the special tooling for the product to be welded;

[0032] As a preferred embodiment of this embodiment, refer to Figure 1 and Figure 2 The supporting assembly includes a mounting seat 3, two rolling bearings 4, a first thrust bearing 14, a second thrust bearing 15, a tail handle 13 and a nut 12.

[0033] Specifically, one end of the mounting seat 3 is embedded in one end of the bow-shaped support frame 1, and the other end of the mounting seat 3 is threadedly connected to the tail handle 13; a positioning hole and a threaded connection hole are provided on the mounting seat 3, and the tooling of different products is positioned through the positioning hole and fixed to the mounting seat 3 through the threaded connection hole to ensure that the product axis is consistent with the axis of the three-jaw chuck 16.

[0034] The tail handle 13 is clamped on the three-jaw chuck 16, and the three-jaw chuck 16 drives the holding mechanism to make a circular motion. A first thrust bearing 14 is arranged at one end of the tail handle 13, and the first thrust bearing 14 is located between the tail handle 13 and the arch support frame 1, and the first thrust bearing 14 is in contact with a side surface of one end of the arch support frame 1; the arch support frame 1 has two rolling bearings 4 built in, and the inner rings of the two rolling bearings 4 are connected to the shaft on the mounting seat 3; one side of the second thrust bearing 15 is attached to the other side surface of one end of the arch support frame 1, and a flange is arranged on the other side of the second thrust bearing 15; the nut 12 is threadedly connected to one end of the mounting seat 3 close to the tail handle 13.

[0035] In this embodiment, the end face of the second thrust bearing 15 is pressed by the side of the flange, and the mounting seat 3 is locked into a whole by the nut 12, thereby realizing integrated assembly and stable movement of the two parts during the rotation process.

[0036] Among them, the outer diameters of the two rolling bearings 4 are connected to the inner holes at one end of the arch support frame 1, the inner diameters of the two rolling bearings 4 are connected to the small shaft of the mounting seat 3, and the second thrust bearing 15 is connected to the large shaft of the mounting seat 3. The rolling bearings 4 are light in weight, easy to install and disassemble, have strong interchangeability, ensure movement performance, reduce friction during movement, have low wear, and have a long service life, so that when the three-jaw chuck 16 holds the tail handle 13 for rotational movement, the arch support frame 1 does not move relative to the tail handle 13.

[0037] The first thrust bearing 14 and the second thrust bearing 15 have a small friction coefficient, small friction resistance and starting friction torque, good interchangeability, can bear radial and axial loads at the same time, reduce the friction between the mounting seat 3 and the arch support frame 1, so that the arch support frame 1 remains stationary during the movement of the mounting seat 3.

[0038] This embodiment provides a preferred solution for the tightening assembly in order to realize the tightening operation of the product to be welded;

[0039] As a preferred embodiment of this embodiment, refer to Figure 1 and Figure 2The tightening assembly includes a seat, an adjusting shaft 10, a floating head 2, a third thrust bearing 5, a clamping nut 8 and a tightening block 7.

[0040] Specifically, a guide seat 6 is provided at the other end of the bow-shaped support frame 1, and the guide seat 6 is connected to the other end of the bow-shaped support frame 1 through a screw 9 and a cylindrical pin 11. An adjusting shaft 10 is built into the guide seat 6, and the adjusting shaft 10 is threadedly connected to the bow-shaped support frame 1; a floating head 2 is built into one end of the adjusting shaft 10 close to the supporting component, and the third thrust bearing 5 is placed in the inner groove of the floating head 2 through a clamping nut 12, and the tightening block 7 is connected to the inner hole of the third thrust bearing 5. Specifically, the tightening block 7 is press-fitted with the third thrust bearing 5.

[0041] The adjusting shaft 10 can move left and right in the guide seat 6. When the lengths of the installed products are inconsistent, the adjusting shaft 10 can be used to adapt to the length requirements of the products.

[0042] The floating head 2 is placed on the tightening block 7, and the floating head 2 performs angular and rotational motions, so that the product pressing method is more reliable and the coaxiality of the product welding is ensured.

[0043] During use of the present invention, the rotating adjustment shaft 10 moves left and right to adapt to different product appearance requirements. The floating head 2 has a tightening structure, which makes it more reliable for the tightening block 7 to tighten the product and the centering more stable. The third thrust bearing 5 is placed between the tightening block 7 and the floating head 2, so that the tightening block 7 rotates with the product during the rotary welding process, and the floating head 2 remains relatively still.

[0044] In this embodiment, the rolling bearing 4, the first thrust bearing 14, and the second thrust bearing 15 are arranged so that during the movement of the three-jaw chuck 16 holding mechanism, the tail handle 13, the mounting seat 3, the special tooling, the product to be welded, and the clamping block 7 rotate synchronously with the three-jaw chuck 16, and the bow-shaped support frame 1, the adjusting shaft 10, the guide seat 6, and the floating head 2 are relatively stationary, thereby ensuring the circumferential welding of the product.

[0045] The present invention connects the supporting component and the jacking component into one body through the arched support frame 1, thereby ensuring the positioning accuracy of the product and reliable clamping.

[0046] During the specific operation of the present invention, the tail handle 13 is assembled to the three-jaw chuck 16 of the laser machine, and the welding tools dedicated to different products are connected to the internal threads of the mounting seat 3 through external threads, and the corresponding components are installed in sequence. The rotating adjustment shaft 10 drives the floating head 2 and the clamping block 7 to clamp the component (product) to be welded; during the welding process, the tail handle 13, the mounting seat 3, the special tooling, the component to be welded, and the clamping block 7 rotate synchronously with the three-jaw chuck 16, and the bow-shaped support frame 1, the adjustment shaft 10, and the floating head 2 remain relatively still by their own gravity and the action of the end bearing, and do not rotate with the three-jaw card to interfere with the laser beam, thereby completing the laser welding of the radial circumferential weld.

[0047] Although the specific implementation of the invention is described in detail in conjunction with the drawings, it should not be understood as limiting the scope of protection of this patent. Within the scope described in the claims, various modifications and variations that can be made by those skilled in the art without creative work still fall within the scope of protection of this patent.

Claims

1. A universal radial weld laser welding coaxial clamping mechanism, characterized in that: It includes an arched support frame, a supporting assembly and a tightening assembly; the supporting assembly is movably arranged at one end of the arched support frame, and the tightening assembly is movably arranged at the other end of the arched support frame; and the axis of the supporting assembly coincides with the axis of the tightening assembly; One end of the holding component is connected to the three-jaw chuck on the laser machine, and the other end of the holding component is connected to a tooling clamping the product to be welded, and the clamping component clamps the product to be welded.

2. The universal radial weld laser welding coaxial clamping mechanism according to claim 1 is characterized in that: The holding assembly includes a mounting seat, two rolling bearings, a first thrust bearing, a second thrust bearing, a tail handle and a nut; One end of the mounting seat is embedded in one end of the arch support frame; the other end of the mounting seat is threadedly connected to the tail handle; a first thrust bearing is provided at one end of the tail handle, the first thrust bearing is located between the tail handle and the arch support frame, and the first thrust bearing is in contact with a side surface of one end of the arch support frame; the arch support frame has two rolling bearings built in, and the two inner rings of the rolling bearings are connected to the shaft on the mounting seat; one side of the second thrust bearing is attached to the other side surface of one end of the arch support frame, and a flange is provided on the other side of the second thrust bearing; the nut is threadedly connected to one end of the mounting seat close to the tail handle.

3. The universal radial weld laser welding coaxial clamping mechanism according to claim 2 is characterized in that: The tail handle is clamped on the three-jaw chuck.

4. The universal radial weld laser welding coaxial clamping mechanism according to claim 2 is characterized in that: The mounting seat is provided with a positioning hole and a threaded connection hole; tooling for different products is positioned through the positioning hole and fixed to the mounting seat through the threaded connection hole.

5. The universal radial weld laser welding coaxial clamping mechanism according to claim 2 is characterized in that: The outer diameters of the two rolling bearings are connected to the inner hole at one end of the arched support frame.

6. The universal radial weld laser welding coaxial clamping mechanism according to claim 2 is characterized in that: The inner diameters of the two rolling bearings are connected to the small shaft of the mounting seat, and the second thrust bearing is connected to the large shaft of the mounting seat.

7. The universal radial weld laser welding coaxial clamping mechanism according to claim 1, characterized in that: The tightening assembly comprises a seat, an adjusting shaft, a floating head, a third thrust bearing, a pressing nut and a tightening block; A guide seat is provided at the other end of the bow-shaped support frame; the guide seat has the adjustment shaft built in, and the adjustment shaft is threadedly connected to the bow-shaped support frame; a floating head is built in one end of the adjustment shaft close to the supporting component, and the third thrust bearing is placed in the inner groove of the floating head through the clamping nut, and the tightening block is connected to the inner hole of the third thrust bearing.

8. The universal radial weld laser welding coaxial clamping mechanism according to claim 7 is characterized in that: The tightening block is press-fittedly connected to the third thrust bearing.

9. The universal radial weld laser welding coaxial clamping mechanism according to claim 7, characterized in that: The floating head is placed on the tightening block, and the floating head performs angular and rotational motions.

10. The universal radial weld laser welding coaxial clamping mechanism according to claim 7, characterized in that: The guide seat is connected to the other end of the arch support frame through screws and cylindrical pins.

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