Laser welding positioning and pressing device

Abstract

The utility model discloses a kind of laser welding positioning and pressing devices, including workbench, for placing workpiece to be welded;Pressing assembly, two groups are symmetrically arranged, two groups of pressing assembly are symmetrically arranged in the length direction of workbench top two ends, all include pressing part and lifting part, lifting part is used to drive pressing part to lift along vertical direction, pressing part is used to the top surface of workpiece to be welded is pressed;Moving assembly, connected with pressing assembly, for making two groups of pressing assembly mutually close or away;Limiting component, set on pressing assembly, for the limiting of the descending height of pressing part.The utility model can adjust the pressing position of workpiece, so that it can meet the fixing demand of different size workpiece, also can limit the descending height of pressing block, avoid that pressing block is excessively descended and damages workpiece.

Description

Technical Field

[0001] This utility model relates to the field of laser welding equipment technology, and in particular to a laser welding positioning and clamping device. Background Technology

[0002] Laser welding is a highly efficient and precise welding method that uses a high-energy-density laser beam as a heat source.

[0003] The advantages of laser welding include minimizing the amount of heat required, minimizing the range of metallographic changes in the heat-affected zone, and reducing deformation due to heat conduction. It can also reduce the time required for welding thick plates and even eliminate the need for filler metal. Laser welding does not require electrodes, eliminating concerns about electrode contamination or damage. Workpieces welded using laser welding have a beautiful appearance, small weld seams, high welding quality, and significantly improved welding efficiency.

[0004] When welding plate-shaped workpieces, they need to be fixed to prevent them from shaking during the welding process and causing welding deviations. Existing positioning and clamping devices often use screws and pressure blocks to clamp the workpieces. However, the clamping position of the existing positioning and clamping devices is fixed and cannot be adjusted according to the size of the workpiece, so they cannot meet the fixing requirements of different workpieces. Furthermore, the existing positioning and clamping devices cannot limit the height of the pressure block when clamping the workpiece, which can easily lead to the pressure block applying too much clamping force to the workpiece, thereby damaging the workpiece to be welded. Utility Model Content

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a laser welding positioning and clamping device that can adjust the clamping position of the workpiece to meet the fixing requirements of workpieces of different sizes, and can also limit the descent height of the clamping block to avoid excessive descent of the clamping block and damage to the workpiece.

[0006] This utility model provides a laser welding positioning and clamping device, comprising: A workbench, used to place workpieces to be welded; Two sets of clamping assemblies are symmetrically arranged at both ends of the top of the workbench along its length. Each set includes a clamping component and a lifting component. The lifting component is connected to the clamping component and is used to drive the clamping component to move up and down in the vertical direction. The clamping component is used to clamp the top surface of the workpiece to be welded. A movable component, connected to the clamping component, is used to drive the clamping component to reciprocate along the length of the worktable, so that the two sets of clamping components move closer or further apart from each other; A limiting component is disposed on the clamping component and is used to limit the descent height of the clamping component.

[0007] Furthermore, the lifting component includes a mounting frame and a cylinder. The mounting frame includes a mounting horizontal plate and mounting vertical plates fixedly disposed at both ends of the mounting horizontal plate. The cylinder is fixedly disposed on the mounting horizontal plate, and its output end is vertically downward.

[0008] Furthermore, the clamping component includes a pressure plate and segmented pressure blocks. The pressure plate is arranged below the mounting plate along its length direction. The top of the pressure plate is fixedly connected to the output end of the cylinder. Multiple segments of pressure blocks are arranged at intervals along the bottom of the pressure plate along its length direction.

[0009] Furthermore, a slide cylinder is fixedly installed above the segmented pressure block, and a slide rod is slidably sleeved inside the slide cylinder. The other end of the slide rod is fixedly connected to the bottom of the pressure plate, and a spring is sleeved on the outside of the slide rod. One end of the spring is fixedly connected to the pressure plate, and the other end is fixedly connected to the slide cylinder.

[0010] Furthermore, the moving component includes strip guide blocks, with the strip guide blocks symmetrically arranged at both ends of the mounting horizontal plate along its length direction. Both sets of strip guide blocks are fixedly installed on the top of the workbench along its length direction. A sliding groove is formed inside the strip guide block along its length direction. A threaded rod is rotatably arranged inside the sliding groove along its length direction. A translation plate is threaded onto the outside of the threaded rod. One end of the translation plate is slidably connected to the sliding groove, and the other end is fixedly connected to a mounting vertical plate. A driving element is provided at one end of the same side of both sets of threaded rods, and the driving element is used to drive the two sets of threaded rods to rotate synchronously.

[0011] Furthermore, the driving component includes a timing pulley and a timing belt. The timing pulley is fixedly sleeved at the end of each of the two sets of threaded rods away from the center of the worktable. The two sets of timing pulleys are connected by the timing belt. A rotating handle is fixedly connected to one end of any of the threaded rods.

[0012] Furthermore, the limiting component includes a sliding sleeve and a limiting plate. The sliding sleeve is slidably sleeved on the outside of the mounting vertical plate. Multiple threaded holes are spaced apart along the length of the outer wall of the mounting vertical plate. The sliding sleeve is fixedly connected to the mounting vertical plate by fastening bolts. One end of the limiting plate is fixedly connected to the sliding sleeve, and the other end extends along the direction close to the pressure plate to directly below the end of the pressure plate.

[0013] Furthermore, an anti-slip pad is provided at the bottom of the segmented pressure block.

[0014] Furthermore, it also includes a guide component, which is fixedly disposed on the top of the worktable along the length direction of the worktable. The guide groove is opened towards the clamping component. Several rotating shafts are rotatably disposed in the guide groove, and guide wheels are fixedly sleeved on the outside of the rotating shafts.

[0015] Compared with the prior art, the beneficial effects of this utility model are: (1) When processing the workpiece to be welded, the workpiece to be processed is first placed on the workbench, and then the corresponding clamping component is moved along the length of the workbench by the moving component, so as to adjust the interval distance between the two sets of clamping components. The clamping component can be flexibly adjusted and fixed according to the size of the workpiece, so that it can meet the requirements of various sizes of plate-shaped workpieces to be welded, thus expanding its application range. (2) The present invention drives the pressing component to descend by the lifting component, so that the pressing component presses the top of the workpiece to be welded. The height position of the pressing component when it descends is limited by the limiting component, so as to avoid the pressing component descending too much and damaging the workpiece to be welded.

[0016] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0017] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a top view of the structure of this utility model (protective cover omitted). Figure 2 This is a front structural diagram of the present invention; Figure 3 This is a side view of the clamping and limiting components. Figure 4 This is a top view of the moving component. Figure 5 This is a schematic diagram of the segmented pressing block structure; Figure 6 A top view of the sliding sleeve and mounting plate. Figure 7 A partial structural diagram of the guiding component; The diagram labels are: 1. Worktable; 2. Clamping assembly; 3. Moving assembly; 4. Limiting assembly; 5. Guiding assembly; 21. Clamping components; 22. Lifting components; 31. Strip guide block; 32. Threaded rod; 33. Translation plate; 34. Synchronous pulley; 35. Protective cover; 41. Sliding sleeve; 42. Limiting plate; 51. Guide groove; 52. Guide wheel; 211. Pressure plate; 212. Segmented pressure block; 213. Slide cylinder; 214. Spring; 221. Install the horizontal plate; 222. Install the vertical plate; 223. Cylinder; 2211. Threaded hole. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0019] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] Please refer to Figures 1-7 The present invention provides a laser welding positioning and clamping device, which is installed below the laser welding equipment and used in conjunction with the laser welding machine for positioning and clamping plate-shaped products during welding. The laser welding positioning and clamping device of this application includes: Workbench 1 is used to place the workpiece to be welded; Two sets of clamping components 2 are symmetrically arranged at both ends of the top of the workbench 1 along its length. Each set includes a clamping component 21 and a lifting component 22. The lifting component 22 is connected to the clamping component 21 and is used to drive the clamping component 21 to move up and down in the vertical direction. The clamping component 21 is used to clamp the top surface of the workpiece to be welded. The movable component 3 is connected to the clamping component 2 and is used to drive the clamping component 2 to reciprocate along the length of the worktable 1 so that the two sets of clamping components 2 move closer to or further away from each other. Limiting component 4 is disposed on clamping component 2 and is used to limit the descent height of clamping component 21; In this embodiment, the laser welding head device is positioned above the worktable 1, typically between two sets of clamping components 2, and can be moved and used for welding as needed. When performing laser welding on a plate-shaped workpiece, the workpiece is placed on top of the worktable 1 according to the welding requirements. After the workpiece is placed, the moving component 3 drives the corresponding clamping component 2 to move along the length of the worktable 1, so that the two sets of clamping components 2 move closer to each other. After moving to a suitable position, the lifting component 22 drives the clamping component 21 to descend, so that the clamping component 21 clamps and fixes the top of the workpiece. This application can adjust the interval between the two sets of clamping components 2 according to the size of the workpiece, so that the clamping component 2 can flexibly adjust the fixed position according to the size of the workpiece, thus expanding its application range. Furthermore, during the descent of the clamping member 21, the height position of the clamping member 21 during descent is limited by the limiting component 4, so as to prevent the clamping member 21 from descending excessively and applying too much clamping force to the workpiece to be welded, thereby damaging the workpiece to be welded and improving the safety performance of this application.

[0021] In a preferred embodiment, such as Figure 3 As shown, the lifting component 22 includes a mounting frame and a cylinder 223. The mounting frame includes a mounting horizontal plate 221 and mounting vertical plates 222 fixedly installed at both ends of the mounting horizontal plate 221. The cylinder 223 is fixedly installed on the mounting horizontal plate 221, and its output end is vertically downward.

[0022] Preferred, such as Figure 3 and Figure 5 As shown, the clamping component 21 includes a pressure plate 211 and segmented pressure blocks 212. The pressure plate 211 is arranged below the mounting plate 221 along its length direction. The top of the pressure plate 211 is fixedly connected to the output end of the cylinder 223. Multiple segments of pressure blocks 212 are arranged at intervals along the bottom of the pressure plate 211 along its length direction.

[0023] In this embodiment, the mounting plate 221 is a longitudinal plate structure, and its length direction is consistent with the width direction of the workbench 1. The cylinder 223 is mounted on the mounting plate 221 through the cylinder mounting bracket, and its output end is fixedly connected to the pressure plate 211 to drive the pressure plate 211 to rise and fall in the vertical direction.

[0024] When it is necessary to press the workpiece to be welded, the cylinder 223 is activated. The output end of the cylinder 223 extends downward, causing the pressure plate 211 to descend, so that the segmented pressure block 212 presses the top surface of the workpiece to be welded. Setting multiple segmented pressure blocks 212 can make the pressing force more evenly distributed and improve the pressing effect.

[0025] In a preferred embodiment, such as Figure 3 and Figure 5As shown, a slide cylinder 213 is fixedly installed above the segmented pressure block 212. A slide rod is slidably sleeved inside the slide cylinder 213. The other end of the slide rod is fixedly connected to the bottom of the pressure plate 211. A spring 214 is sleeved on the outside of the slide rod. One end of the spring 214 is fixedly connected to the pressure plate 211, and the other end is fixedly connected to the slide cylinder 213.

[0026] In this embodiment, the descent of the pressure plate 211 can drive multiple segmented pressure blocks 212 to descend synchronously, applying a clamping force to the top surface of the workpiece to be welded. When the top surface of the plate-shaped workpiece to be welded is uneven, the spring 214 can apply a uniform clamping force to the plate-shaped workpiece with an uneven top surface.

[0027] In a preferred embodiment, such as Figure 5 As shown, an anti-slip pad is provided at the bottom of the segmented pressure block 212. Specifically, the anti-slip pad is made of rubber material. The anti-slip pad can increase the friction between the segmented pressure block 212 and the top surface of the workpiece to be welded, improve the stability of the workpiece, and at the same time protect the surface of the workpiece to be welded, avoiding scratches caused by improper contact.

[0028] In a preferred embodiment, such as Figure 1 , Figure 3 and Figure 4 As shown, the moving component 3 includes strip guide blocks 31. The strip guide blocks 31 are symmetrically arranged at both ends of the mounting plate 221 along its length direction. Both sets of strip guide blocks 31 are fixedly arranged on the top of the workbench 1 along its length direction. A sliding groove is opened in the strip guide block 31 along its length direction. A threaded rod 32 is rotatably arranged in the sliding groove along its length direction. A translation plate 33 is threaded on the outside of the threaded rod 32. One end of the translation plate 33 is slidably connected to the sliding groove, and the other end is fixedly connected to the mounting plate 222. A driving component is provided at one end of the same side of the two sets of threaded rods 32. The driving component is used to drive the two sets of threaded rods 32 to rotate synchronously.

[0029] In this embodiment, two sets of moving components 3 are also symmetrically arranged, each corresponding to a set of pressing components 2; Each set of moving components 3 includes two sets of strip guide blocks 31. The two sets of strip guide blocks 31 are symmetrically provided with grooves on their sides that are close to each other. Threaded rods 31 are installed in the grooves, which provide the mounting base for the threaded rods 31. The two sets of threaded rods 31 have the same structure, and the two sets of translation plates 33 also have the same structure. The two sets of threaded rods 31 can be driven to rotate synchronously by the driving component, thereby driving the mounting frame to move along the length of the worktable 1, so as to realize the position adjustment of the two sets of clamping components 21 in the horizontal plane.

[0030] In a preferred embodiment, such as Figure 1 and Figure 4As shown, the driving component includes a synchronous pulley 34 and a synchronous belt. The ends of the two sets of threaded rods 32 away from the center of the worktable 1 are fixedly fitted with synchronous pulleys. The two sets of synchronous pulleys are connected by a synchronous belt 35. One end of any threaded rod 32 is fixedly connected to a rotating handle.

[0031] In this embodiment, the two sets of threaded rods 32 are synchronously driven through the transmission connection of synchronous pulley and synchronous belt 35. The operator can drive the two sets of threaded rods 32 to rotate synchronously by turning the rotating handle, thereby causing the translation plate 33 to move synchronously along its length direction and adjust its position in the horizontal plane. This allows the clamping member 22 connected to it to adjust its horizontal fixed position according to the size of the workpiece.

[0032] It should be noted that, as Figure 2 and Figure 4 As shown, a protective cover 35 is provided on the outside of the drive component. The protective cover 35 can be fixedly installed at both ends of the workbench 1 by bolts to protect the drive component and prevent damage from external forces.

[0033] Furthermore, the rotating handle can be replaced with a drive motor, which drives the threaded rod 32 to rotate.

[0034] In a preferred embodiment, such as Figure 3 and Figure 6 As shown, the limiting component 4 includes a sliding sleeve 41 and a limiting plate 42. The sliding sleeve 41 is slidably sleeved on the outside of the mounting vertical plate 221. Multiple threaded holes 2211 are spaced apart along the length of the outer wall of the mounting vertical plate 221. The sliding sleeve 41 is fixedly connected to the mounting vertical plate 221 by fastening bolts. One end of the limiting plate 42 is fixedly connected to the sliding sleeve 41, and the other end extends along the direction close to the pressure plate 211 to directly below the end of the pressure plate 211.

[0035] In this embodiment, when it is necessary to press the workpiece to be welded, the lowering position of the limiting plate 42 can be adjusted according to the thickness of the workpiece. First, remove the fastening bolts and let the sliding sleeve 41 slide along the height direction of the mounting vertical plate 221. After sliding to a suitable position, tighten the fastening bolts into the corresponding threaded holes 2211 to fix the sliding sleeve 41. When the pressure plate 211 descends, the bottom of the segmented pressure block 212 applies a certain pressing force to the top surface of the workpiece to be welded. The bottom ends of the pressure plate 211 contact the top of the limiting plate 42 to avoid the cylinder 223 descending too much and causing the segmented pressure block 212 to apply too much pressure to the workpiece, which would damage the workpiece.

[0036] It should be noted that threaded holes 2211 are provided on the symmetrical outer walls of the mounting plate 222, and the number of fastening bolts can be multiple and the number is not limited, which improves the stability of the sliding sleeve 41 after it is fixed.

[0037] In addition, a scale can be set on the outer wall of the mounting plate 222 to visually observe the descent position of the limit plate 42.

[0038] In a preferred embodiment, such as Figure 1 , Figure 3 and Figure 7 As shown, it also includes a guide component 5, which is fixedly installed on the top of the workbench 1 along the length direction of the workbench 1 in a guide groove 51. The guide groove 51 is opened towards the clamping component 2. Several rotating shafts are rotatably installed inside the guide groove 51, and guide wheels 52 are fixedly sleeved on the outside of the rotating shafts.

[0039] In this embodiment, the guide groove 51 is a longitudinally elongated structure, and the length direction of the guide groove 51 is consistent with the length direction of the worktable 1. Several rotating shafts in the guide groove 51 are arranged along the length direction of the guide groove, and the outer surface of the guide wheel 52 inside it protrudes to a part of the outside of the guide groove 51 for contact with the workpiece to be welded. Before welding the workpiece, one side of the plate-shaped workpiece to be welded is brought into contact with the outer surface of the guide wheel 52. The workpiece is then driven to move against the guide wheel 52 using a conventional drive device, or manually pushed to move against the guide wheel 52, guiding the workpiece to the position to be welded. The guide wheel 52 guides the movement of the workpiece, preventing it from skewing during movement and thus avoiding welding errors.

[0040] Working principle: Before welding the workpiece, one side of the plate-shaped workpiece is brought into contact with the outer surface of the guide wheel 52, and the workpiece is moved to the desired welding position. Then, the moving component 3 drives the two sets of clamping components 2 to move closer to each other and stop at the appropriate position. The lifting component 22 drives the clamping component 21 to descend, so that the clamping component 21 clamps and fixes the top of the workpiece. This application can flexibly adjust the fixed position of the clamping component 2 according to the size of the workpiece, thus expanding its application range. Furthermore, during the descent of the clamping member 21, the height position of the clamping member 21 during descent is limited by the limiting component 4, so as to prevent the clamping member 21 from descending excessively and applying too much clamping force to the workpiece to be welded, thereby damaging the workpiece to be welded and improving the safety performance of this application.

[0041] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0042] In the description of this specification, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A laser welding positioning and clamping device, characterized in that, include: A workbench, used to place workpieces to be welded; Two sets of clamping assemblies are symmetrically arranged at both ends of the top of the workbench along its length. Each set includes a clamping component and a lifting component. The lifting component is connected to the clamping component and is used to drive the clamping component to move up and down in the vertical direction. The clamping component is used to clamp the top surface of the workpiece to be welded. A movable component, connected to the clamping component, is used to drive the clamping component to reciprocate along the length of the worktable, so that the two sets of clamping components move closer or further apart from each other; A limiting component is disposed on the clamping component and is used to limit the descent height of the clamping component.

2. The laser welding positioning and clamping device according to claim 1, characterized in that, The lifting component includes a mounting frame and a cylinder. The mounting frame includes a mounting horizontal plate and mounting vertical plates fixedly disposed at both ends of the mounting horizontal plate. The cylinder is fixedly disposed on the mounting horizontal plate, and its output end is vertically downward.

3. The laser welding positioning and clamping device according to claim 2, characterized in that, The clamping component includes a pressure plate and segmented pressure blocks. The pressure plate is arranged below the mounting plate along its length. The top of the pressure plate is fixedly connected to the output end of the cylinder. Multiple segments of pressure blocks are arranged at intervals along the bottom of the pressure plate along its length.

4. The laser welding positioning and clamping device according to claim 3, characterized in that, A slide cylinder is fixedly installed above the segmented pressure block. A slide rod is slidably sleeved inside the slide cylinder. The other end of the slide rod is fixedly connected to the bottom of the pressure plate. A spring is sleeved on the outside of the slide rod. One end of the spring is fixedly connected to the pressure plate, and the other end is fixedly connected to the slide cylinder.

5. The laser welding positioning and clamping device according to claim 2, characterized in that, The moving component includes strip guide blocks. The strip guide blocks are symmetrically arranged at both ends of the mounting horizontal plate along its length direction. Both sets of strip guide blocks are fixedly arranged on the top of the workbench along its length direction. A sliding groove is formed in the strip guide block along its length direction. A threaded rod is rotatably arranged in the sliding groove along its length direction. A translation plate is threaded on the outside of the threaded rod. One end of the translation plate is slidably connected to the sliding groove, and the other end is fixedly connected to the mounting vertical plate. A driving element is provided at one end of the same side of both sets of threaded rods, and the driving element is used to drive the two sets of threaded rods to rotate synchronously.

6. The laser welding positioning and clamping device according to claim 5, characterized in that, The driving component includes a timing pulley and a timing belt. The timing pulley is fixedly sleeved at the end of each of the two sets of threaded rods away from the center of the worktable. The two sets of timing pulleys are connected by the timing belt. A rotating handle is fixedly connected to one end of any of the threaded rods.

7. The laser welding positioning and clamping device according to claim 3, characterized in that, The limiting component includes a sliding sleeve and a limiting plate. The sliding sleeve is slidably sleeved on the outside of the mounting vertical plate. Multiple threaded holes are spaced apart along the length of the outer wall of the mounting vertical plate. The sliding sleeve is fixedly connected to the mounting vertical plate by fastening bolts. One end of the limiting plate is fixedly connected to the sliding sleeve, and the other end extends along the direction close to the pressure plate to directly below the end of the pressure plate.

8. The laser welding positioning and clamping device according to claim 3, characterized in that, The bottom of the segmented pressure block is provided with an anti-slip pad.

9. A laser welding positioning and clamping device according to claim 1, characterized in that, It also includes a guide component, which is fixedly disposed on the top of the workbench along the length direction of the workbench. The guide groove is opened towards the clamping component. Several rotating shafts are rotatably disposed in the guide groove, and guide wheels are fixedly sleeved on the outside of the rotating shafts.

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