Laser welding machine tool for disc workpiece
By adopting a combined structure of workbench, base plate, clamp and opening and closing components on the laser welding machine tool, the shaft accuracy and edge curling problems in disk workpiece welding are solved, and the workpiece is firmly fixed and efficient welding is achieved.
Patent Information
- Application Number
- CN202420950204.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-30
AI Technical Summary
In the prior art, it is difficult to ensure the axis accuracy of the workpiece in the welding of disc-type workpieces, and it is prone to edge curling.
A laser welding machine tool for disc workpieces is designed, using a combined structure of workbench, laser welding head, base plate, motor, clamp block, opening and closing assembly, connecting block and abutment member, and synchronously slipped through clamp blocks. The motor drive base plate is rotated to ensure the firm fixation of the workpiece on the fixture and the accuracy of the shaft alignment. It also prevents the laser welding joint from acting directly on the abutment parts through the structures such as fixed rods, deflection rods, rollers, etc., and reduces friction and curling edges.
It effectively ensures the axis alignment accuracy of the workpiece on the fixture, avoids the edge curling phenomenon, and improves the accuracy and efficiency of welding through automatic reset and adjustment mechanisms.
Smart Images
Figure CN222176321U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of laser welding, in particular to a laser welding machine tool for disc workpieces. Background Art
[0002] Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. It can be achieved using a continuous or pulsed laser beam. It is widely used in the automotive, shipbuilding, aerospace and other fields due to its high energy density, high precision, non-contact welding and low loss.
[0003] In the related art, for the welding of disc-like workpieces, most of them are to place one end surface of two circular workpieces together, rely on a clamp to support the center position of the circular workpiece from both sides and rotate it, and the laser welding head welds the edge of the rotating workpiece. However, when the two workpieces are simply fixed together by supporting the center position of the workpiece, it is difficult to ensure the axis alignment accuracy of the workpiece on the clamp, and warping may occur between the workpieces. Utility Model Content
[0004] In order to ensure the axis alignment accuracy of the workpiece on the fixture and avoid the edge warping between the workpieces as much as possible, the present application provides a laser welding machine for disc workpieces.
[0005] The present application provides a laser welding machine tool for disc workpieces, which adopts the following technical solution:
[0006] A laser welding machine for disc workpieces comprises a workbench, a laser welding head is arranged on one side of the workbench, a base disc is rotatably arranged on the workbench, a motor for driving the base disc to rotate is fixedly arranged at the bottom of the workbench, a plurality of clamping blocks are symmetrically and slidably arranged on the end surface of the base disc, an opening and closing assembly for driving the clamping blocks to slide synchronously is arranged on the base disc, a connecting block is arranged on the clamping block, an abutment is arranged on the connecting block, and the abutment is used to tighten the workpiece.
[0007] By adopting the above technical solution, when the workpieces need to be welded, the workpieces are placed on the base plate, and all the clamps are driven to approach synchronously through the opening and closing components. All the clamps fix one of the workpieces in the center of the base plate, and the connecting blocks approach the workpieces together with the clamps. All the abutments abut the edge of the other workpiece end face together, so that the two workpieces are firmly fixed on the base plate, thereby ensuring the axis alignment accuracy of the workpieces on the fixture and avoiding the warping of the workpieces as much as possible. After the workpieces are fixed, the base plate is driven to rotate by the motor, and the edge of the rotating workpiece is welded using the laser welding head.
[0008] Preferably, a fixed rod is provided on the workbench, a deflection rod is rotatably provided on the connecting block, one end of the deflection rod is connected to the abutment member, and the fixed rod can abut against the side of the deflection rod away from the abutment member.
[0009] By adopting the above technical solution, when the welding point of the laser welding head is close to the abutment block, the fixed rod abuts against the deflection rod. As the base plate continues to rotate, the fixed rod abuts against and slides toward the end of the deflection rod away from the abutment block. The deflection rod begins to rotate on the connecting block, and the abutment piece at the other end of the deflection rod moves away from the workpiece, thereby avoiding the laser welding head from acting on the abutment piece.
[0010] Preferably, a torsion spring is provided at the rotational connection between the deflection rod and the connection block, and the torsion spring drives the deflection rod to be parallel to the connection block.
[0011] By adopting the above technical solution, as the base plate rotates, the deflection rod and the fixed rod are separated from the abutment relationship, and the torsion spring drives the deflection rod to be parallel to the connecting block, thereby driving the connecting block to automatically reset.
[0012] Preferably, an I-block is fixedly provided at the bottom end of the fixed rod, and the I-block is slidably provided on the workbench. A locking bolt is threadedly provided on the I-block, and the locking bolt can be abutted against the surface of the workbench.
[0013] By adopting the above technical solution, when clamping disc-like workpieces with different outer diameters, the position of the clamping block on the disc will also change accordingly, and the abutment position of the fixed rod on the deflection rod will also change accordingly, and it may even be out of contact with the deflection rod. At this time, the position of the fixed rod needs to be adjusted. First, slide the I-block to change the position of the fixed rod, and then turn the locking bolt so that the locking bolt is against the surface of the workbench to fix the fixed rod on the workbench.
[0014] Preferably, the abutment member includes a sleeve, a sliding rod, and a connecting rod, the sleeve is fixedly arranged on the side wall of the connecting block, the sliding rod is slidably arranged in the sleeve, the connecting rod is arranged between the sliding rod and the deflection rod, one end of the connecting rod is rotatably connected to the sliding rod, and the other end of the connecting rod is rotatably arranged on the deflection rod.
[0015] By adopting the above technical solution, when the deflection rod rotates, the connecting rod is pulled away from the sleeve by the deflection rod, and the sleeve restricts the sliding rod to slide, so that the sliding rod approaches the rotation center of the deflection rod under the drive of the rotation of the deflection rod. Therefore, when the abutment member abuts or disengages from the workpiece, the abutment member slides radially on the workpiece, thereby minimizing the stroke of the abutment member on the workpiece.
[0016] Preferably, the abutment member further comprises a roller, and the roller is rotatably disposed on the sliding rod.
[0017] By adopting the above technical solution, the roller is used to abut against the workpiece. When the roller enters and leaves the end face of the workpiece, the roller rolls on the end face of the workpiece, thereby reducing the friction acting on the workpiece.
[0018] Preferably, a guide rail is fixedly provided on the clamping block, the connecting block is slidably provided on the guide rail, an adjusting screw is rotatably provided on the guide rail, a knob is fixedly provided on the top of the adjusting screw, the adjusting screw is threadedly connected to the connecting block, and scale lines are provided on the guide rail.
[0019] By adopting the above technical solution, before clamping workpieces of different thicknesses, the knob is turned to adjust the screw and the threaded engagement of the connecting block, and the connecting block slides vertically relative to the clamping block, thereby adjusting the distance between the roller and the base plate, so as to clamp workpieces of different thicknesses.
[0020] Preferably, the opening and closing assembly includes a top cover, a threaded ring, and a lever. The top cover is fixedly arranged on the base. A sliding groove is provided on the top cover. The clamping block is slidably arranged in the sliding groove. The threaded ring is rotatably arranged in the top cover. The thread on the threaded ring is arranged in a mosquito-repellent coil shape on the end face. The clamping block is threadedly connected to the end face of the threaded ring. One end of the lever is fixedly arranged on the threaded ring, and the other end of the lever extends outside the top cover.
[0021] By adopting the above technical solution, when it is necessary to drive all the clamping blocks to slide synchronously, the lever is used to drive the threaded ring to rotate in the top cover, and the sliding groove on the top cover limits the clamping blocks to radial sliding. All the clamping blocks rotate and engage with the mosquito coil-shaped thread to approach or move away from the center of the base disk, thereby driving all the clamping blocks to slide synchronously.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. By setting up a workbench, laser welding head, base plate, motor, clamping block, opening and closing assembly, connecting block, and abutment, the two workpieces are firmly fixed on the base plate, so as to ensure the axis alignment accuracy of the workpieces on the fixture and avoid the edge warping between the workpieces as much as possible;
[0024] 2. By setting a fixed rod, a deflection rod, a sleeve, a sliding rod, a connecting rod and a roller, as the base plate rotates, when the roller approaches the laser welding head, the roller is automatically driven away from the welding position of the workpiece, thereby avoiding the laser from acting on the abutment part;
[0025] 3. By setting the top cover, threaded ring, lever and sliding groove, all the clamping blocks are driven to slide synchronously, so as to ensure the axis alignment accuracy of the workpiece on the base plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1It is a structural schematic diagram of a laser welding machine tool for a disc workpiece provided in an embodiment of the present application.
[0027] Figure 2 yes Figure 1 Enlarged view of part A.
[0028] Figure 3 It is a schematic diagram of the exploded structure of the opening and closing assembly provided in the embodiment of the present application.
[0029] Explanation of the accompanying drawings: 1. workbench; 11. laser welding head; 13. motor; 14. I-block; 141. fixed rod; 142. locking bolt; 2. base plate; 21. clamping block; 22. opening and closing assembly; 23. connecting block; 231. deflection rod; 24. abutment; 241. sleeve; 242. sliding rod; 243. connecting rod; 244. roller; 25. guide rail; 251. scale line; 26. adjusting screw; 261. knob; 27. top cover; 271. threaded ring; 272. lever; 273. sliding groove. DETAILED DESCRIPTION
[0030] The following is combined with Figure 1-3 This application is described in further detail.
[0031] The present application embodiment discloses a laser welding machine tool for a disc workpiece. Figure 1 and Figure 2 , which includes a workbench 1, and a laser welding head 11 with adjustable position is arranged on one side of the workbench 1. A base plate 2 is rotatably arranged on the surface of the workbench 1, and a motor 13 is fixedly arranged inside the workbench 1, and the motor 13 can drive the base plate 2 to rotate. A plurality of clamping blocks 21 are slidably arranged on the end surface of the base plate 2, and all the clamping blocks 21 are symmetrical about the rotation center of the base plate 2, and an opening and closing component 22 for driving the clamping blocks 21 to slide synchronously is arranged on the base plate 2. A connecting block 23 is arranged on the clamping block 21, and an abutment 24 is arranged on the connecting block 23, and the abutment 24 is used to tighten the workpiece. Before welding the workpieces, all the clamping blocks 21 are driven by the opening and closing component 22 to clamp one of the workpieces in the center of the base plate 2 at the same time, and all the abutment 24 abut against the edge of the end face of the other workpiece at the same time, so that the two workpieces are fixed on the base plate 2, so as to ensure the axis alignment accuracy of the workpiece on the fixture and avoid the warping phenomenon between the workpieces as much as possible. After the workpiece is clamped, the motor 13 is started, the motor 13 drives the base plate 2 to rotate, and the laser welding head 11 welds the edge of the workpiece.
[0032] In order to drive all the clamping blocks 21 to slide synchronously, refer to Figure 3The opening and closing assembly 22 includes a top cover 27, a threaded ring 271, and a lever 272. The top cover 27 is fixedly arranged on the base. A sliding groove 273 is provided on the top cover 27. The clamping block 21 is slidingly arranged in the sliding groove 273. The threaded ring 271 is rotatably arranged in the top cover 27. The thread on the threaded ring 271 is arranged in a mosquito coil shape at the end face. The clamping block 21 is threadedly connected with the end face of the threaded ring 271. One end of the lever 272 is fixedly arranged at the bottom of the threaded ring 271, and the other end of the lever 272 extends outside the top cover 27. When the lever 272 is moved, the threaded ring 271 rotates in the top cover 27. All the clamping blocks 21 are meshed with the threaded ring 271 at the same time, and approach or move away from the center of the base plate 2 as the threaded ring 271 rotates, thereby driving all the clamping blocks 21 to slide synchronously.
[0033] In order to avoid the laser welding head 11 from damaging the abutment 24, refer to Figure 1 and Figure 2 The clamping block 21 is fixedly provided with a guide rail 25, and the connecting block 23 is slidably provided on the guide rail 25. An adjusting screw 26 is rotatably provided on the guide rail 25, and a knob 261 is fixedly provided on the top of the adjusting screw 26. The adjusting screw 26 is threadedly connected with the connecting block 23, and a scale line 251 is provided on the guide rail 25. According to the thickness of the clamped workpiece, the knob 261 is turned to engage the connecting block 23 through the adjusting screw 26, and the connecting block 23 is referred to the position of the scale line 251 pointed to by the connecting block 23, so as to adjust the connecting block 23 to a suitable height.
[0034] Reference Figure 1 and Figure 2 A guide groove is provided near the laser welding head 11 of the workbench 1. The guide groove is provided along the diameter direction of the base plate 2. The two side walls of the guide groove abut against the center of the I-shaped block 14. The I-shaped block 14 can slide in the guide groove. A fixed rod 141 is fixedly provided on the I-shaped block 14. A locking bolt 142 is threadedly provided on the I-shaped block 14, and the locking bolt 142 can abut against the surface of the workbench 1. According to the different diameters of the clamped workpiece, the distance between the fixed rod 141 and the base plate 2 is changed by sliding the I-shaped block 14 in the guide groove, and the locking bolt 142 abuts against the surface of the workbench 1, thereby adjusting the fixed rod 141 to a suitable position.
[0035] Reference Figure 1 and Figure 2The abutment member 24 includes a sleeve 241, a sliding rod 242, a connecting rod 243, and a roller 244. The sleeve 241 is fixedly arranged on the side wall of the connecting block 23, the sliding rod 242 is slidingly arranged in the sleeve 241, and the end of the sliding rod 242 is rotatably arranged with a roller 244, and the roller 244 can abut against the workpiece. A deflection rod 231 is rotatably arranged on the connecting block 23, one end of the connecting rod 243 is rotatably connected to the end of the deflection rod 231, and one end of the connecting rod 243 is rotatably connected to the end of the sliding rod 242. A torsion spring is arranged at the rotation connection between the deflection rod 231 and the connecting block 23, and the torsion spring drives the deflection rod 231 to be parallel to the connecting block 23. When the welding point of the laser welding head 11 is close to the abutment block, the fixed rod 141 abuts against the deflection rod 231. As the base plate 2 continues to rotate, the fixed rod 141 abuts against and slides toward the end of the deflection rod 231 away from the abutment. The deflection rod 231 pulls the sliding rod 242 away from the workpiece through the connecting rod 243. The roller 244 rolls on the surface of the workpiece until it is separated from the workpiece. After passing the welding point, the torsion spring drives the deflection rod 231 to reset, and the roller 244 abuts the workpiece again. In addition, the adjusting screw 26 engaging the connecting block 23 can also be used to adjust the amount of pressure of the roller 244. The purpose is to adjust the horizontality of the workpiece by adjusting the screw 26 to ensure the horizontal state of the workpiece during welding.
[0036] The implementation principle of a laser welding machine for disc workpieces in the embodiment of the present application is as follows: before welding the workpieces, adjust the connecting block 23 to a suitable height according to the thickness of the clamped workpieces. Adjust the fixed rod 141 to a suitable position according to the diameter of the clamped workpieces. Move the lever 272 to drive all the clamping blocks 21 to slide synchronously, clamping one of the workpieces in the center of the base plate 2. All rollers 244 simultaneously press against the edge of the end face of the other workpiece, thereby fixing the two workpieces on the base plate 2. After the workpieces are clamped, start the motor 13, the motor 13 drives the base plate 2 to rotate, and the laser welding head 11 welds the edges of the workpieces. When the welding point of the laser welding head 11 is close to the abutment block, the fixed rod 141 abuts against the deflection rod 231. As the base plate 2 continues to rotate, the fixed rod 141 abuts against and slides toward the end of the deflection rod 231 away from the abutment block. The deflection rod 231 pulls the sliding rod 242 away from the workpiece through the connecting rod 243. The roller 244 rolls on the surface of the workpiece until it is separated from the workpiece. After passing the welding point, the torsion spring drives the deflection rod 231 to reset, and the roller 244 abuts the workpiece again. This makes it easy to ensure the axis alignment accuracy of the workpiece on the fixture and avoid the edge warping phenomenon between the workpieces as much as possible.
[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A laser welding machine for disc workpieces, characterized in that: The invention comprises a workbench (1), a laser welding head (11) is arranged on one side of the workbench (1), a base plate (2) is rotatably arranged on the workbench (1), a motor (13) for driving the base plate (2) to rotate is fixedly arranged at the bottom of the workbench (1), a plurality of clamping blocks (21) are symmetrically and slidably arranged on the end surface of the base plate (2), an opening and closing assembly (22) for driving the clamping blocks (21) to slide synchronously is arranged on the base plate (2), a connecting block (23) is arranged on the clamping block (21), and an abutment (24) is arranged on the connecting block (23), and the abutment (24) is used to press against a workpiece.
2. A laser welding machine tool for disc workpieces according to claim 1, characterized in that: The workbench (1) is provided with a fixed rod (141), the connecting block (23) is rotatably provided with a deflection rod (231), one end of the deflection rod (231) is connected to the abutment member (24), and the fixed rod (141) can abut against a side of the deflection rod (231) away from the abutment member (24).
3. A laser welding machine tool for disc workpieces according to claim 2, characterized in that: A torsion spring is provided at the rotation connection between the deflection rod (231) and the connection block (23), and the torsion spring drives the deflection rod (231) to be parallel to the connection block (23).
4. A laser welding machine tool for disc workpieces according to claim 2, characterized in that: An I-shaped block (14) is fixedly arranged at the bottom end of the fixed rod (141), and the I-shaped block (14) is slidably arranged on the workbench (1). A locking bolt (142) is threadedly arranged on the I-shaped block (14), and the locking bolt (142) can be abutted against the surface of the workbench (1).
5. A laser welding machine tool for disc workpieces according to claim 2, characterized in that: The abutment member (24) comprises a sleeve (241), a sliding rod (242), and a connecting rod (243); the sleeve (241) is fixedly arranged on a side wall of the connecting block (23); the sliding rod (242) is slidingly arranged in the sleeve (241); the connecting rod (243) is arranged between the sliding rod (242) and the deflection rod (231); one end of the connecting rod (243) is rotatably connected to the sliding rod (242); and the other end of the connecting rod (243) is rotatably connected to the deflection rod (231).
6. A laser welding machine tool for disc workpieces according to claim 5, characterized in that: The abutment member (24) further comprises a roller (244), and the roller (244) is rotatably disposed on the sliding rod (242).
7. The laser welding machine tool for disc workpieces according to claim 2, characterized in that: A guide rail (25) is fixedly arranged on the clamping block (21), the connecting block (23) is slidably arranged on the guide rail (25), an adjusting screw (26) is rotatably arranged on the guide rail (25), a knob (261) is fixedly arranged on the top of the adjusting screw (26), the adjusting screw (26) is threadedly connected to the connecting block (23), and a scale line (251) is arranged on the guide rail (25).
8. The laser welding machine tool for disc workpieces according to claim 1, characterized in that: The opening and closing assembly (22) comprises a top cover (27), a threaded ring (271), and a lever (272); the top cover (27) is fixedly arranged on a base; a sliding groove (273) is provided on the top cover (27); the clamping block (21) is slidingly arranged in the sliding groove (273); the threaded ring (271) is rotatably arranged in the top cover (27); the thread on the threaded ring (271) is arranged in a mosquito coil shape at the end surface; the clamping block (21) is threadedly connected to the end surface of the threaded ring (271); one end of the lever (272) is fixedly arranged on the threaded ring (271); and the other end of the lever (272) extends outside the top cover (27).