Laser processing machine and workbench device thereof

Abstract

The utility model discloses a laser processing machine and a workbench device thereof. The workbench device comprises a workbench, a centering body, a centering driver and a rotary driver. The workbench is connected with the output end of the rotary driver, an avoiding through hole penetrating up and down is formed in the workbench, and a fixing structure used for fixing a workpiece is arranged on the upper end face of the workbench. An output shaft of the rotary driver is provided with a center shaft hole which penetrates up and down and is opposite to the avoiding through hole up and down, and the center line of the center shaft hole coincides with the center line of the avoiding through hole; the centering body is located in the central shaft hole, or the centering body is located in the central shaft hole and the avoiding through hole; the centering driver is located below the rotary driver and further connected with the centering body. The centering body can be driven by the centering driver to slide upwards to a position higher than the fixed structure or slide downwards to a position lower than the fixed structure; therefore, the positioning precision of the workpiece fixed on the workbench is improved, and the subsequent laser processing precision of the workpiece is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of laser processing, and in particular to a laser processing machine and its worktable device. Background Technology

[0002] As is well known, laser processing is a technology that uses laser beams to process materials and is widely used in cutting, drilling and surface treatment of various parts.

[0003] In the production process of saw blades (especially circular saw blades), the use of laser processing equipment is indispensable. Laser processing equipment is used to cut the saw blades to improve their cutting accuracy and efficiency.

[0004] However, in existing laser processing equipment, the saw blade cannot be positioned before the worktable fixes it, thus failing to ensure the positioning accuracy of the saw blade on the worktable, which affects the subsequent cutting accuracy of the saw blade.

[0005] Furthermore, in existing laser processing equipment, since its worktable moves along the Y-axis and the laser processing device moves along the X-axis, in order to ensure that the worktable has sufficient space to move in the Y-axis direction, the dimensions of the laser processing equipment in the Y-axis direction need to be processed, resulting in the existing laser processing equipment occupying a large space in the Y-axis direction.

[0006] Therefore, there is an urgent need for a laser processing machine and its worktable device to overcome one or more of the above-mentioned defects. Utility Model Content

[0007] One objective of this invention is to provide a worktable device for a laser processing machine, which can improve the positioning accuracy of the workpiece fixed on the worktable to ensure the accuracy of subsequent laser processing of the workpiece, and reduce the space occupied.

[0008] One objective of this invention is to provide a laser processing machine that, on the one hand, improves the positioning accuracy of the workpiece fixed on the worktable to ensure the accuracy of subsequent laser processing of the workpiece, and on the other hand, reduces the space occupied.

[0009] To achieve the above objectives, the worktable device of the laser processing machine of this utility model includes a worktable, a centering body, and a centering driver and a rotary driver located correspondingly below the worktable. The worktable is assembled and connected to the output end of the rotary driver. The worktable has a clearance through hole that extends vertically through the upper and lower end faces of the worktable. A fixing structure is provided on the upper end face of the worktable, located beside the clearance through hole and protruding upward from the upper end face. The fixing structure is configured to fix the workpiece. The output shaft of the rotary driver has a central shaft hole that extends vertically through the worktable and is vertically opposite to the clearance through hole. The center lines of the central shaft hole and the clearance through hole coincide. The centering body is located in the central shaft hole, or the centering body is located in both the central shaft hole and the clearance through hole. The centering driver is located below the rotary driver and is also connected to the centering body. Under the drive of the centering driver, the centering body can slide upward to a position higher than the fixing structure or slide downward to a position lower than the fixing structure.

[0010] Compared with existing technologies, by cooperating with the centering body and the centering actuator, before the workpiece is fixed by the fixing structure, the centering actuator first drives the centering body to slide upward to a position higher than the fixing structure to achieve centering of the workpiece. Then, the centering actuator drives the centering body to slide downward to a position lower than the fixing structure to achieve the fixing of the centered workpiece by the fixing structure. This ensures the positioning accuracy of the workpiece fixed on the worktable and ensures the accuracy of subsequent laser processing of the workpiece. In addition, by assembling and connecting the worktable with the output shaft of the rotary actuator, the rotary actuator drives the worktable to rotate during the laser processing of the workpiece. Therefore, the space required for the rotation of the worktable is small, thereby reducing the space occupied. Furthermore, since the centering body is located in the central shaft hole opened in the output shaft of the rotary actuator, their structure is more compact.

[0011] Preferably, the workbench device of this utility model further includes a cover, and a pivot seat is provided on the upper surface of the workbench next to the clearance through hole. One side of the cover is pivotally connected to the pivot seat, and the other side of the cover is used to cover the clearance through hole. When the centering body extends upward into the clearance through hole, the cover opens the clearance through hole, and when the centering body retracts downward into the clearance through hole, the cover covers the clearance through hole.

[0012] Preferably, the upper end of the centering body is a conical structure that is smaller at the top and larger at the bottom.

[0013] Preferably, the fixing structure is a plurality of structures arranged at intervals around the center line of the clearance through hole.

[0014] Preferably, the fixing structure is a magnetic structure.

[0015] Preferably, the output end of the centering driver is aligned vertically with and assembled with the centering body.

[0016] To achieve the above objectives, the laser processing machine of this utility model is suitable for laser processing of saw blades, including a frame, a laser processing device for laser processing the saw blades, a horizontal transfer module assembled between the frame and the laser processing device for driving the laser processing device to move in the horizontal direction, and the aforementioned worktable device. The worktable device is located below the laser processing device, and the centering drive and the rotary drive are each assembled on the frame.

[0017] Compared with existing technologies, by cooperating with the centering body and the centering actuator, before the workpiece is fixed by the fixing structure, the centering actuator first drives the centering body to slide upward to a position higher than the fixing structure to achieve centering of the workpiece. Then, the centering actuator drives the centering body to slide downward to a position lower than the fixing structure to achieve the fixing of the centered workpiece by the fixing structure. This ensures the positioning accuracy of the workpiece fixed on the worktable and ensures the accuracy of subsequent laser processing of the workpiece. In addition, by assembling and connecting the worktable with the output shaft of the rotary actuator, the rotary actuator drives the worktable to rotate during the laser processing of the workpiece. Therefore, the space required for the rotation of the worktable is small, thereby reducing the space occupied. Furthermore, since the centering body is located in the central shaft hole opened in the output shaft of the rotary actuator, their structure is more compact.

[0018] Preferably, the frame includes a horizontal frame and a vertical frame connected together, the horizontal transfer module is mounted on the vertical frame, the worktable is located above the horizontal frame, and the centering drive and the rotary drive are located below the horizontal frame and mounted on the horizontal frame.

[0019] Preferably, the laser processing machine of this utility model further includes a dust collection hood mounted on the horizontal frame from above, the dust collection hood surrounding the worktable from all sides, and the horizontal frame having a through hole that communicates with the internal space of the dust collection hood.

[0020] Preferably, the laser processing machine of this utility model further includes a flange, the horizontal frame has a vertically penetrating channel through which the output shaft of the rotary driver passes upward through the horizontal frame, the flange is embedded in the vertical channel from above the horizontal frame and fixedly connected to the horizontal frame, and the flange is also fitted onto the output shaft of the rotary driver.

[0021] Preferably, the laser processing apparatus includes a laser head and a horizontal transfer module for moving the laser head up and down, wherein the laser head can be moved to directly above the worktable under the drive of the horizontal transfer module. Attached Figure Description

[0022] Figure 1 This is a perspective view of the laser processing machine of this utility model.

[0023] Figure 2 yes Figure 1 The image shows an exploded 3D view of a laser processing machine.

[0024] Figure 3 This is a perspective view of the worktable device and dust hood assembled on the horizontal frame in the laser processing machine of this utility model.

[0025] Figure 4 yes Figure 3 A stereoscopic view from another angle.

[0026] Figure 5 yes Figure 3 A floor plan viewed from top to bottom.

[0027] Figure 6 It is along Figure 5 Internal view of the section cut along the DD line.

[0028] Figure 7 Is Figure 6 Based on this, the diagram shows the state of the centering body on the left when it is driven upward by the centering actuator to slide above the fixed structure. Detailed Implementation

[0029] To explain the technical content and structural features of this utility model in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0030] Please see Figure 1 and Figure 2 The laser processing machine 100 of this invention is suitable for laser processing of saw blades 200, for example, for laser cutting of circular saw blades 200. Obviously, depending on actual needs, the laser processing machine 100 of this invention can also be used for other processing of saw blades 200 besides cutting, and the shape of saw blades 200 is not limited to circular. In addition, the laser processing machine 100 of this invention includes a worktable device 10, a frame 20, a laser processing device 30 for laser processing of saw blades 200, and a horizontal transfer module 40 assembled between the frame 20 and the laser processing device 30 for driving the laser processing device 30 to move in the horizontal direction.

[0031] The workbench device 10 is located below the laser processing device 30 to meet the needs of the laser processing device 30 to perform laser processing on the saw blade 200 carried by the workbench device 10 from above. Simultaneously, combined with... Figures 3 to 6 The worktable device 10 includes a worktable 11, a centering body 12, and a centering driver 13 and a rotary driver 14 located below the worktable 11. The rotary driver 14 and the centering driver 13 are mounted on a frame 20, which provides support for the rotary driver 14 and the centering driver 13. The output end 141 of the rotary driver 14 is also connected to the worktable 11, which provides support for the worktable 11 and meets the need for the rotary driver 14 to drive the worktable 11 to rotate. The output shaft 141 of the rotary driver 14 has a through-hole 142.

[0032] The worktable 11 has a clearance through hole 113 that extends vertically through the upper end face 111 and the lower end face 112 of the worktable 11. The clearance through hole 113 is vertically aligned with the central shaft hole 142. The center lines of the clearance through hole 113 and the central shaft hole 142 are (see...) Figure 6 and Figure 7 The center line of the workbench 11 coincides with the center line of the workbench 11. The upper end face 111 of the workbench 11 is provided with a fixing structure 114 located beside the clearance through hole 113 and protruding upward from the upper end face 111. The fixing structure 114 is configured to fix the saw blade 200. Optionally, as an example, the fixing structure 114 is a magnetic structure, such as a magnet or electromagnet. Obviously, depending on the actual needs, the fixing structure 114 can also be other structures known in the art, so it is not limited thereto.

[0033] The centering body 12 is located in the central shaft hole 142 and the clearance through hole 113. Obviously, depending on actual needs, the centering body 12 can also be located only in the central shaft hole 142, so it is not considered... Figure 6 and Figure 7 The above is a limited list; alternatively, it may be used in [the following context]. Figure 6 and Figure 7 In this example, the upper end of the centering body 12 is a tapered structure 121, which is smaller at the top and larger at the bottom. This tapered structure 121 helps guide the centering body 12 into and out of the center hole 210 of the saw blade 200, making centering the saw blade 200 more convenient. Obviously, depending on actual needs, the upper end of the centering body 12 can also be designed with other structures that facilitate entry and exit from the center hole 210 of the saw blade 200. Therefore, it is not considered... Figure 6 and Figure 7 As shown, this is a limited description. Specifically, at... Figure 6 and Figure 7 In this example, the conical structure 121 is a frustum to facilitate the manufacture of the centering body 12. Obviously, the conical structure 121 can also be other shapes well known in the art, so it is not considered... Figure 6 and Figure 7 The above is the limit.

[0034] The centering actuator 13 is located below the rotary actuator 14, and is also connected to the centering body 12, so that the centering body 12 can slide upward under the drive of the centering actuator 13 to a position higher than the fixed structure 114, as shown in the figure. Figure 7 The centering body 12 on the left, or, it can slide down to a position lower than the fixed structure 114, as shown in the diagram. Figure 7 The centering body 12 on the right side better meets the need for the saw blade 200 to be positioned by the centering body 12 before being fixed by the fixing structure 114; alternatively, it can be located on the right side of the centering body 12. Figure 6 and Figure 7 In this example, the centering actuator 13 is a cylinder. Obviously, depending on actual needs, the centering actuator 13 can also be designed as a hydraulic cylinder or an electric actuator. Therefore, it is not considered as such. Figure 6 and Figure 7 The above is a limited description. More specifically, as follows:

[0035] like Figure 6 and Figure 7 As shown, as an example, the workbench device 10 also includes a cover 15. A pivot seat 115 is provided on the upper end face 111 of the workbench 11, located next to the clearance through-hole 113. One side of the cover 15 is pivotally connected to the pivot seat 115, and the other side of the cover 15 is used to cover the clearance through-hole 113. Therefore, during the process of the centering body 12 extending upwards into the clearance through-hole 113, the centering body 12 causes the cover 15 to open the clearance through-hole 113. During the process of the centering body 12 retracting downwards into the clearance through-hole 113, the cover 15 covers the clearance through-hole 113 to prevent processing waste from falling into the clearance through-hole 113 and damaging the centering body 12, thereby better ensuring the positioning accuracy of the centering body 12 for the saw blade 200. Specifically, in Figure 6 and Figure 7 As an example, during the process of the centering body 12 retracting downwards to avoid the through hole 113, the cover 15 automatically covers the through hole 113 due to the loss of the push from the centering body 12 and under its own weight, thus simplifying the structure of the cover 15 resetting. Obviously, depending on actual needs, a resetting component can also be added between the cover 15 and the pivot seat 115 or between the cover 15 and the worktable 11 to achieve automatic resetting of the cover 15. In addition, the resetting component can be a spring, but is not limited to this.

[0036] like Figure 2 , Figure 3 and Figure 5As shown, as an example, the fixing structures 114 are multiple structures arranged around the center line of the avoidance through hole 113 to increase the reliability of fixing the saw blade 200. Alternatively, as an example, there are three fixing structures 114, arranged in a circle with equal central angles. Obviously, depending on actual needs, the number of fixing structures 114 can also be four, five, or six, so it is not limited to... Figure 2 , Figure 3 and Figure 5 The above is the limit.

[0037] like Figure 6 and Figure 7 As shown, as an example, the output end 131 of the centering actuator 13 is vertically aligned and assembled with the centering body 12 to ensure uniform force application by the centering actuator 13 to the centering body 12. Alternatively, the rotary actuator 14 can be a direct drive motor, offering advantages such as low speed and high torque, high-precision positioning, high response speed, simple structure, low mechanical loss, low noise, and low maintenance. Obviously, depending on actual needs, the rotary actuator 14 can also be other types of motors, and is not limited thereto.

[0038] like Figure 1 and Figure 2 As shown, as an example, rack 20 includes a horizontal frame 21 and a vertical frame 22 connected together, optionally, in Figure 1 and Figure 2 In this example, the vertical frame 22 is connected to the rear of the horizontal frame 21, a design that provides more installation space for the horizontal frame 21. Obviously, depending on actual needs, the vertical frame 22 can also be connected to other locations on the horizontal frame 21, therefore... Figure 1 and Figure 2 As shown, when the frame 20 includes a horizontal frame 21 and a vertical frame 22, the horizontal transfer module 40 is mounted on the vertical frame 22, the worktable 11 is located above the horizontal frame 21, and the centering drive 13 and the rotary drive 14 are located below the horizontal frame 21. The rotary drive 14 and the centering drive 13 are mounted on the horizontal frame 21. This design makes the structure of the laser processing machine 100 of this utility model more reasonable and compact. Specifically, in Figure 1 and Figure 2As an example, the laser processing machine 100 of this utility model also includes a dust collection hood 50 and a flange 60. The dust collection hood 50 is mounted on the horizontal frame 21 from above, and surrounds the worktable 11 from all sides. The horizontal frame 21 has a through-hole 211 and a through-channel 212 for the output shaft 141 of the rotary drive 14 to pass upward through the horizontal frame 21. The through-hole 211 communicates with the internal space 51 of the dust collection hood 50; flange 60 The flange 60 is embedded in the upper and lower channels 212 above the horizontal frame 21 and fixedly connected to the horizontal frame 21. The flange 60 is also fitted onto the output shaft 141 of the rotary driver 14. Therefore, the flange 60 increases the support strength of the horizontal frame 21 for the output shaft 141 of the rotary driver 14, thereby more effectively ensuring the smooth and reliable rotation of the worktable 11 driven by the rotary driver 14. The dust extraction hood 50 promptly removes waste gas from laser processing, preventing damage to the environment and operators. It should be noted that although... Figure 1 and Figure 2 The illustration shows a laser processing machine 100 of this utility model that includes both a dust extraction hood 50 and a flange 60. Obviously, depending on actual needs, the laser processing machine 100 of this utility model can also include either a dust extraction hood 50 or a flange 60; therefore, it is not considered a separate solution. Figure 1 and Figure 2 The above is the limit.

[0039] For example Figure 1 and Figure 2 As shown, as an example, the horizontal transfer module 40 is a linear motor module. Obviously, depending on actual needs, the horizontal transfer module 40 can also be a structure composed of a rotary motor, a lead screw, and a lead screw nut, or a structure composed of a rotary motor and a belt drive, and is not limited thereto. Furthermore, the laser processing device 30 includes a laser head 31 and a vertical transfer module 32 for moving the laser head 31 up and down, so that the laser head 31 and the saw blade 200 carried by the worktable device 10 are kept in a suitable position by means of the vertical transfer module 32, and the laser head 31 can be moved to directly above the worktable 11 described below under the drive of the horizontal transfer module 40. Specifically, as an example, the vertical transfer module 32 can be a structure composed of a rotary motor, a lead screw, and a lead screw nut; obviously, depending on actual needs, it can also be a structure composed of a rotary motor and a belt drive.

[0040] Compared with the prior art, by cooperating with the centering body 12 and the centering actuator 13, before the workpiece (saw blade 200) is fixed by the fixing structure 114, the centering actuator 13 first drives the centering body 12 to slide upward to a position higher than the fixing structure 114 to achieve centering of the workpiece (saw blade 200). Then, the centering actuator 13 drives the centering body 12 to slide downward to a position lower than the fixing structure 114 to achieve the fixed workpiece (saw blade 200) after centering, thereby ensuring that the workpiece (saw blade 200) is fixed by the fixing structure 114. The positioning accuracy fixed on the worktable 11 ensures the subsequent laser processing accuracy of the workpiece (saw blade 200); in addition, the worktable 11 is assembled and connected to the output shaft 141 of the rotary driver 14 so that the rotary driver 14 drives the worktable 11 to rotate during the laser processing of the workpiece (saw blade 200), so the space required for the rotation of the worktable 11 is small, thereby reducing the space occupied; furthermore, since the centering body 12 is located in the central shaft hole 142 opened in the output shaft 141 of the rotary driver 14, their structure is more compact.

[0041] It is worth noting that in the attached figure, arrow A points in the direction from bottom to top of the rack 20, arrow B points in the direction from left to right of the rack 20, and arrow C points in the direction from front to back of the rack 20.

[0042] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall fall within the scope of the present utility model.

Claims

1. A table device of a laser processing machine comprising a table, characterized by, The workbench device further comprises a centering body, a centering driver and a rotating driver located below the workbench, the workbench is connected with the output end of the rotating driver, the workbench is provided with an avoiding through hole penetrating the upper end face and the lower end face of the workbench, the upper end face of the workbench is provided with a fixing structure located beside the avoiding through hole and protruding upward, the fixing structure is configured to fix a workpiece, the output shaft of the rotating driver is provided with a central shaft hole penetrating the output shaft and opposite to the avoiding through hole, the central lines of the central shaft hole and the avoiding through hole are coincident, the centering body is located in the central shaft hole or the central shaft hole and the avoiding through hole, the centering driver is located below the rotating driver and connected with the centering body, the centering body can slide upward to a position higher than the fixing structure or slide downward to a position lower than the fixing structure under the driving of the centering driver.

2. The worktable apparatus according to claim 1, wherein, The workbench is further provided with a cover, the upper end face of the workbench is provided with a pivot seat beside the avoiding through hole, one side of the cover is pivoted with the pivot seat, and the other side of the cover is used to cover the avoiding through hole, the centering body opens the avoiding through hole in the process of extending out of the avoiding through hole, and the cover covers the avoiding through hole in the process of the centering body retracting into the avoiding through hole.

3. The worktable apparatus of claim 1, wherein, The upper end of the centering body is a tapered structure with a small upper end and a large lower end.

4. The workstation apparatus of claim 1, wherein, The fixing structure is a plurality of magnetic structures arranged around the central line of the avoiding through hole.

5. The workstation apparatus of claim 1, wherein, The output end of the centering driver is linearly connected with the centering body and assembled together.

6. A laser processing machine adapted to laser process a saw blade, comprising a frame, a laser processing device for laser processing the saw blade, and a horizontal transfer module assembled between the frame and the laser processing device and used to drive the laser processing device to move in a horizontal direction, characterized in that, The laser processing machine further comprises the workbench device according to any one of claims 1 to 5, the workbench device is located below the laser processing device, and the centering driver and the rotating driver are assembled on the frame.

7. The laser processing machine according to claim 6, characterized by The frame comprises a horizontal frame body and a vertical frame body connected together, the horizontal transfer module is assembled on the vertical frame body, the workbench is located above the horizontal frame body, the centering driver and the rotating driver are located below the horizontal frame body, and the rotating driver and the centering driver are assembled on the horizontal frame body.

8. The laser processing machine according to claim 7, characterized by The horizontal frame body is further provided with a dust cover assembled thereon from above, the dust cover surrounds the workbench from all around, the horizontal frame body is provided with a communication hole penetrating the horizontal frame body, and the communication hole is in communication with the internal space of the dust cover.

9. The laser processing machine according to claim 7, characterized by The horizontal frame body is further provided with a flange, the horizontal frame body is provided with an upper and lower channel penetrating the horizontal frame body for the output shaft of the rotating driver to pass through the horizontal frame body upward, the flange is embedded in the upper and lower channel from above the horizontal frame body and fixedly connected with the horizontal frame body, and the flange is further fitted on the output shaft of the rotating driver.

10. The laser processing machine according to claim 6, characterized by The laser processing device comprises a laser head and an up and down transfer module for moving the laser head up and down, and the laser head can move to the position directly above the workbench under the driving of the horizontal transfer module.

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