Welding tool and laser processing equipment

Abstract

The utility model discloses a welding tool and laser machining equipment, the welding tool comprises a mounting base, a heat dissipation piece, a jig and a first locking mechanism, and the heat dissipation piece comprises a base part arranged on the mounting base and a butt joint part arranged on the base part in a protruding mode; the jig is arranged on the mounting seat and used for mounting a workpiece, and the jig is further in butt joint with the butt joint part; the first locking mechanism is arranged on the mounting seat and is used for locking the jig; the multiple cooling channels are arranged in the heat dissipation piece side by side, the heat dissipation efficiency of the heat dissipation piece and the jig can be improved through the multiple cooling channels, the cooling channels are arranged in the length direction of the butt joint part, and it can be guaranteed that heat dissipation of all the positions of the butt joint part is balanced. And the cooling channel is arranged close to the top surface and the side surface of the butt joint part, so that the cooling channel can be further close to the jig, and the heat conduction distance is shortened to accelerate heat dissipation. The cooling channels are sequentially connected in series, it is ensured that cooling media can smoothly flow in the cooling channels, turbulent flow is avoided, and the cooling efficiency of all the positions is kept balanced.

Description

Technical Field

[0001] This application relates to the field of laser processing, and in particular to a welding fixture and laser processing equipment. Background Technology

[0002] In laser processing, the melting of materials under high-power laser beams generates temperatures exceeding 1000 degrees Celsius. This high temperature can cause quality problems such as deformation, cracks, and porosity in the weld area. Therefore, it is necessary to quickly conduct away the high temperatures generated during material melting. Typically, laser welding equipment uses gas cooling, which involves blowing cooling gas (nitrogen or argon) into the welding area to lower the temperature. However, gas cooling is relatively mild and its cooling effect is not ideal. Utility Model Content

[0003] This application proposes a welding fixture and laser processing equipment that can dissipate heat from the workpiece in a balanced and rapid manner with high heat dissipation efficiency.

[0004] This application proposes a welding fixture, comprising:

[0005] Mounting base;

[0006] The heat dissipation component includes a base disposed on the mounting base and a mating portion protruding from the base;

[0007] A fixture is provided on the mounting base for mounting the workpiece, and the fixture is also connected to the docking part;

[0008] A first locking mechanism is provided on the mounting base for locking the fixture;

[0009] Multiple cooling channels are arranged side by side inside the heat sink. The cooling channels are arranged along the length of the docking part. The cooling channels are located near the top surface and side surface of the docking part, and the cooling channels are connected in series.

[0010] In some embodiments, the cooling channel includes a first section extending inward from one side wall of the base, a second section extending vertically upward from one end of the first section into the mating portion, a third section extending along the upper surface of the mating portion from one end of the second section, a fourth section extending vertically downward from one end of the third section into the base, and a fifth section extending from one end of the fourth section towards the other side wall of the base.

[0011] In some embodiments, the base is provided with two docking portions, which are arranged side by side along their own width direction, and two cooling channels in the same row of the two docking portions are connected in series.

[0012] In some embodiments, the first locking mechanism includes rotary pressing cylinders located at both ends of the mounting base.

[0013] In some embodiments, the fixture further includes:

[0014] A fixture base, wherein the fixture base is provided with a mounting cavity for mounting a workpiece;

[0015] The pressure assembly includes a frame that docks with the fixture seat, a pressure member that is movably connected to the frame, and a first elastic member that connects the frame and the pressure member, wherein the elastic force of the first elastic member causes the pressure member to press onto the workpiece.

[0016] In some embodiments, the fixture further includes a positioning component disposed in the fixture base, the positioning component comprising:

[0017] The pusher is floatingly disposed in the fixture seat, and one end of it penetrates the side wall of the mounting cavity;

[0018] The second elastic element connects the pusher and the fixture seat, and the elastic force of the second elastic element causes the pusher to laterally abut against the workpiece.

[0019] In some embodiments, the bottom of the fixture base is further provided with a discharge hole corresponding to the pusher, and the side of the pusher facing the discharge hole is further provided with a docking groove, so that the pusher can move away from the mounting cavity after being held by the docking groove.

[0020] In some embodiments, the fixture further includes a second locking mechanism for connecting the fixture base and the frame.

[0021] In some embodiments, the pressure member is further provided with a machining hole corresponding to the mounting cavity.

[0022] This application also proposes a laser processing device, including the welding fixture described above and a frame for mounting the welding fixture.

[0023] This application provides a welding fixture and laser processing equipment. The welding fixture includes a mounting base, a heat sink, a jig, and a first locking mechanism. The heat sink includes a base on the mounting base and a mating portion protruding from the base. The jig is mounted on the mounting base and is used to mount the workpiece; the jig also abuts against the mating portion. The first locking mechanism is mounted on the mounting base and is used to lock the jig. Multiple cooling channels are arranged side-by-side within the heat sink. These channels accelerate the heat dissipation efficiency of the heat sink and the jig. The cooling channels are arranged along the length of the mating portion to ensure even heat dissipation throughout the mating portion. The cooling channels are positioned near the top and sides of the mating portion, further bringing them closer to the jig and shortening the heat conduction distance to accelerate heat dissipation. The cooling channels are connected in series to ensure smooth flow of the cooling medium within the channels, avoiding turbulence and maintaining balanced cooling efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the welding fixture in one embodiment of this application;

[0025] Figure 2 This is an exploded view of the welding fixture in one embodiment of this application;

[0026] Figure 3 This is a cross-sectional view of a heat sink and its cooling pipes in one embodiment of this application;

[0027] Figure 4 This is a schematic diagram of the fixture in one embodiment of this application;

[0028] Figure 5 for Figure 4 A cross-sectional view of the fixture in the embodiment;

[0029] Figure 6 for Figure 5 Enlarged view of point A in the embodiment.

[0030] Label Explanation:

[0031] 1. Workpiece; 10. Mounting base; 20. Heat sink; 21. Base; 22. Butt joint; 23. First through hole; 24. Blind hole; 25. Second through hole; 26. Set screw; 30. Fixture; 31. Fixture base; 311. Mounting cavity; 32. Pressing assembly; 321. Mounting component; 322. Guide rod; 323. Pressing component; 324. First elastic component; 325. Machining hole; 33. Frame; 34. Positioning assembly; 341. Pusher component; 342. Butt joint groove; 343. Second elastic component; 35. Second locking mechanism; 351. Positioning hook; 352. Limiting seat; 353. Locking tongue; 40. First locking mechanism;

[0032] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments in this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0034] It should be noted that all directional indications in the embodiments of this application, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0035] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0036] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0037] This application provides a welding fixture, referring to... Figures 1 to 4 The welding fixture includes: a mounting base 10; a heat sink 20, including a base 21 disposed on the mounting base 10 and a mating portion 22 protruding from the base 21; a jig 30 disposed on the mounting base 10 for mounting the workpiece 1, and the jig 30 also mating with the mating portion 22; and a first locking mechanism 40 disposed on the mounting base 10 for locking the jig 30; see reference. Figure 3Multiple cooling channels are arranged side-by-side within the heat sink 20, running along the length of the mating portion 22. These channels are positioned near the top and sides of the mating portion 22 and are connected in series. In this embodiment, the multiple cooling channels accelerate the heat dissipation efficiency of the heat sink 20 and the fixture 30. The arrangement of the cooling channels along the length of the mating portion 22 ensures balanced heat dissipation throughout the mating portion 22. Positioning the cooling channels near the top and sides of the mating portion 22 further brings them closer to the fixture 30, shortening the heat conduction distance and accelerating heat dissipation. The series connection of the cooling channels ensures smooth flow of the cooling medium within the channels, preventing turbulence and maintaining balanced cooling efficiency. The cooling medium can be clean water with a high specific heat capacity.

[0038] Reference Figure 3 The cooling channel includes a first section extending inward from one side wall of the base 21, a second section extending vertically upward from one end of the first section into the docking portion 22, a third section extending along the upper surface of the docking portion 22 from one end of the second section, a fourth section extending vertically downward from one end of the third section into the base 21, and a fifth section extending from one end of the fourth section towards the other side wall of the base 21. In this embodiment, the section located in the docking portion 22 can accelerate heat dissipation from the fixture 30, while the section located in the base 21 is used for overall heat dissipation of the portion of the heat sink 20 away from the fixture 30. Simultaneously, the multiple sections located in the docking portion 22 can increase the contact area between the medium and the docking portion 22, improve heat dissipation efficiency, and ensure balanced heat dissipation across the surface of the docking portion 22.

[0039] Specifically, the base 21 has two mating portions 22, which are arranged side by side along their width. Two cooling channels in the same row of the two mating portions 22 are connected in series. Since some fixtures 30 may have multiple workpieces 1, multiple mating portions 22 corresponding to each workpiece 1 can be provided on the base 21 to achieve balanced heat dissipation for each workpiece 1. It is worth noting that a first through hole 23 can be drilled from the side wall of the base 21, and two vertical blind holes 24 can be drilled from the bottom of the base 21, with the two blind holes 24 located close to the side wall of the mating portion 22. A second through hole 25 can then be drilled from the side wall of the mating portion 22 near its top surface. The first through hole 23, blind holes 24, and second through hole 25 are connected, and set screws 26 are installed at some connection points to seal off certain sections, ultimately forming a U-shaped cooling channel. Adjacent cooling channels are connected in series via connecting pipes. The two docking parts 22 are positioned on a cross-section of the heat sink 20 to form two series cooling channels, which further increases the contact area between the cooling medium and the heat sink 20 and improves the heat dissipation efficiency.

[0040] Furthermore, the first locking mechanism 40 includes rotary pressing cylinders located at both ends of the mounting base 10. In this embodiment, some positioning pins can be provided on the mounting base 10, and corresponding positioning holes can be provided on the fixture 30. After the two are connected, the mounting base 10 and the fixture 30 can be precisely connected. At the same time, the rotary pressing cylinders located at both ends of the mounting base 10 can apply downward pressure to the fixture 30, thereby locking the fixture 30 and preventing vibration or movement during the processing from affecting the processing accuracy.

[0041] Furthermore, refer to Figures 4 to 6 The fixture 30 further includes: a fixture base 31, on which a mounting cavity 311 for mounting the workpiece 1 is provided; and a pressing assembly 32, including a frame 33 that docks with the fixture base 31, a pressing member 323 movably connected to the frame 33, and a first elastic member 324 connecting the frame 33 and the pressing member 323, the elastic force of the first elastic member 324 causing the pressing member 323 to press against the workpiece 1. In this embodiment, referring to... Figure 6 The frame 33 has a mounting member 321 on its upper side and a guide rod 322 on its lower side. The pressure member 323 is slidably connected to the guide rod 322. The two ends of the first elastic member 324 abut against the pressure member 323 and the mounting member 321, respectively. The end of the pressure member 323 also overlaps with the frame 33. The frame 33 can limit the pressure member 323 to a certain extent, and the pressure member 323 can move between the frame 33 and the mounting member 321. After the fixture seat 31 is connected to the frame 33, the pressure member 323 can connect with the workpiece 1 in the lower mounting cavity 311. The first elastic member 324 causes the pressure member 323 to exert downward pressure on the workpiece 1.

[0042] Furthermore, refer to Figures 4 to 6 The fixture 30 also includes a positioning component 34 disposed in the fixture base 31. The positioning component 34 includes: a pusher 341, which is floatingly disposed in the fixture base 31 and has one end penetrating through the side wall of the mounting cavity 311; and a second elastic member 343, which connects the pusher 341 and the fixture base 31. The elastic force of the second elastic member 343 causes the pusher 341 to laterally abut against the workpiece 1. The first elastic member 324 and the pusher 341 can laterally position the workpiece 1, ensuring that the position of the workpiece 1 in the mounting cavity 311 remains fixed and improving the lateral positioning accuracy of the workpiece 1.

[0043] In addition, the bottom of the fixture base 31 is provided with a ejection hole corresponding to the pusher 341. The side of the pusher 341 facing the ejection hole is also provided with a docking groove 342. The pusher 341 can move away from the mounting cavity 311 after being held by the docking groove 342. In this embodiment, the docking groove 342 is provided to facilitate the unlocking and removal of the workpiece 1. Specifically, the pusher 341 is retracted by pushing the docking groove 342 through the ejection hole, thus completing the unlocking.

[0044] In some embodiments, refer to Figures 4 to 6 The fixture 30 also includes a second locking mechanism 35 for connecting the fixture base 31 and the frame 33. In this embodiment, the second locking mechanism 35 includes a positioning hook 351 on the fixture base 31, a limiting seat 352 on the frame 33, a locking tongue 353 floating in the limiting seat 352, and a spring connecting the locking tongue 353 and the limiting seat 352. The limiting seat 352 is also provided with a mounting hole for accommodating the positioning hook 351. When the positioning hook 351 aligns with the mounting hole, the locking tongue 353 can engage with the positioning hook 351 from one side, thus locking the positioning hook 351 and the frame 33. When unlocking is required, the locking tongue 353 can be pushed away from the positioning hook 351 from below the fixture base 31. The locking and unlocking process of the second locking mechanism 35 is simple and efficient. It ensures that the fixture 30 can be tightly locked, preventing the workpiece 1 from shaking in the mounting cavity 311 and allowing it to disengage from the mounting cavity 311, thereby improving the vertical positioning accuracy of the workpiece 1.

[0045] In addition, the pressure member 323 is also provided with a machining hole 325 corresponding to the mounting cavity 311. The machining hole 325 is used to allow the laser beam to pass through and irradiate the machining area set on the workpiece 1.

[0046] This application also proposes a laser processing device, which includes the aforementioned welding fixture and a frame for mounting the welding fixture.

[0047] In this embodiment, the working principle of the welding fixture and laser processing equipment is as follows: The welding fixture includes a mounting base 10, a heat sink 20, a fixture 30, and a first locking mechanism 40. The heat sink 20 includes a base 21 on the mounting base 10 and a mating portion 22 protruding from the base 21. The fixture 30 is mounted on the mounting base 10 and is used to mount the workpiece. The fixture 30 also docks with the mating portion 22. The first locking mechanism 40 is mounted on the mounting base 10 and is used to lock the fixture 30. Multiple cooling channels are arranged side by side inside the heat sink 20. These multiple cooling channels can accelerate the heat dissipation efficiency of the heat sink 20 and the fixture 30. The cooling channels are arranged along the length of the mating portion 22 to ensure balanced heat dissipation at all points of the mating portion 22. The cooling channels are located near the top and sides of the mating portion 22, which further brings the cooling channels closer to the fixture 30, shortening the heat conduction distance and accelerating heat dissipation. The cooling channels are connected in series to ensure that the cooling medium can flow smoothly in the cooling channels, avoiding turbulence and maintaining balanced cooling efficiency at all points.

[0048] The workpiece and heat sink 20 are brought into close contact by a rotating clamping cylinder clamping fixture 30 and heat sink 20. The heat sink 20 can be a copper block, with copper having a thermal conductivity of 386.4 W / m·K. Heat from the workpiece can be quickly conducted to the copper block. Simultaneously, the special design of the copper block's flow channels allows cold water to flow closer to the workpiece. Cold water, with its high specific heat capacity and thermal conductivity, carries away heat as it flows over the copper block. This solves some of the heat dissipation problems in high-power welding applications.

[0049] The above are only some or preferred embodiments of this application. Neither the text nor the drawings should limit the scope of protection of this application. All equivalent structural transformations made using the content of this application's specification and drawings under the overall concept of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A welding fixture, characterized in that, include: Mounting base; The heat dissipation component includes a base disposed on the mounting base and a mating portion protruding from the base; A fixture is provided on the mounting base for mounting the workpiece, and the fixture is also connected to the docking part; A first locking mechanism is provided on the mounting base for locking the fixture; Multiple cooling channels are arranged side by side inside the heat sink. The cooling channels are arranged along the length of the docking part. The cooling channels are located near the top surface and side surface of the docking part, and the cooling channels are connected in series.

2. The welding fixture according to claim 1, characterized in that, The cooling channel includes a first section extending inward from one side wall of the base, a second section extending vertically upward from one end of the first section into the docking portion, a third section extending along the upper surface of the docking portion from one end of the second section, a fourth section extending vertically downward from one end of the third section into the base, and a fifth section extending from one end of the fourth section towards the other side wall of the base.

3. The welding fixture according to claim 1, characterized in that, The base is provided with two docking parts, which are arranged side by side along their own width direction, and two cooling channels in the same row of the two docking parts are connected in series.

4. The welding fixture according to claim 1, characterized in that, The first locking mechanism includes rotary pressing cylinders located at both ends of the mounting base.

5. The welding fixture according to claim 1, characterized in that, The fixture also includes: A fixture base, wherein the fixture base is provided with a mounting cavity for mounting a workpiece; The pressure assembly includes a frame capable of docking with the fixture seat, a pressure member movably connected to the frame, and a first elastic member connecting the frame and the pressure member, the elastic force of the first elastic member causing the pressure member to press onto the workpiece.

6. The welding fixture according to claim 5, characterized in that, The fixture further includes a positioning component disposed in the fixture base, the positioning component comprising: The pusher is floatingly disposed in the fixture seat, and one end of it penetrates the side wall of the mounting cavity; The second elastic element connects the pusher and the fixture seat, and the elastic force of the second elastic element causes the pusher to laterally abut against the workpiece.

7. The welding fixture according to claim 6, characterized in that, The bottom of the fixture base is also provided with a material ejection hole corresponding to the pusher. The side of the pusher facing the material ejection hole is also provided with a docking groove. The pusher can move away from the mounting cavity after being held by the docking groove.

8. The welding fixture according to claim 5, characterized in that, The fixture also includes a second locking mechanism for connecting the fixture base and the frame.

9. The welding fixture according to claim 5, characterized in that, The pressure component is also provided with machining holes corresponding to the mounting cavity.

10. A laser processing device, characterized in that, It includes the welding fixture according to any one of claims 1 to 9 and the frame for mounting the welding fixture.

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