Laser processing equipment for manufacturing PCD (Poly Crystal Diamond) cutter

Abstract

The utility model relates to the field of laser processing, and discloses laser processing equipment for manufacturing a PCD (Poly Crystal Diamond) cutter. Comprising a lathe bed, an X-axis sliding seat, a Y-axis sliding seat, an A-axis rotary table, a tip sliding seat, a tailstock tip and a vertical seat, wherein the X-axis sliding seat is arranged on the lathe bed in a manner of sliding along an X axis; the Y-axis sliding seat is arranged on the lathe bed in a manner of sliding along a Y axis; the A-axis rotary table is fixed on the Y-axis sliding seat; the Z-axis sliding seat can be vertically arranged on the vertical seat in a sliding mode, the B-axis rotary table is arranged on the Z-axis sliding seat, and the laser assembly is arranged at the output end of the B-axis rotary table. The laser processing equipment provided by the utility model is specially used for multi-axis linkage laser processing of the PCD cutter, meets the processing requirements of the PCD cutters with different lengths and shapes, effectively solves the problem that the tail part of the long-structure PCD cutter deviates in the processing process under the auxiliary support of the tailstock tip, remarkably improves the precision of the processing position, and improves the production efficiency. And the stability of laser cutting is ensured.

Description

Technical Field

[0001] The utility model relates to the field of laser processing, and particularly relates to a laser processing device for manufacturing PCD tools. Background Art

[0002] A PCD tool is a tool made by welding a PCD composite sheet to a tool body of cemented carbide or steel. Since the PCD composite sheet combines the high hardness, wear resistance, low friction coefficient and strength of single crystal diamond with the high flexural strength of tungsten carbide cemented carbide, the tungsten carbide cemented carbide layer of the composite sheet provides mechanical support for the diamond layer, increasing its flexural strength. At the same time, the cemented carbide layer is easy to weld, making it easy to manufacture finished tools, and it is widely used in fields such as automobiles, aerospace, electronics and wood processing.

[0003] Compared with methods such as using a grinding wheel for grinding and electrical discharge machining to process the edge of a PCD tool, laser processing has higher efficiency and lower processing costs. However, there are various types of PCD tools, and there are large differences in the length dimensions of different types of PCD tools, resulting in problems such as difficult clamping and low processing accuracy, and there is a lack of laser processing equipment on the market that can stably process various PCD tools. Summary of the Utility Model

[0004] In view of the deficiencies of the above-mentioned prior art, the purpose of the present utility model is to provide a laser processing device that can stably process various PCD tools.

[0005] In order to achieve the above purpose, the present utility model adopts the following technical solutions:

[0006] A laser processing device for manufacturing PCD tools, including a bed body, an X-axis slide seat slidably arranged on the bed body along the X-axis, a Y-axis slide seat slidably arranged on the bed body along the Y-axis, an A-axis turntable fixed on the Y-axis slide seat, a center slide seat slidably arranged on the Y-axis slide seat along the X-axis, a tailstock center arranged on the center slide seat, an upright seat arranged on the X-axis slide seat, a Z-axis slide seat slidably arranged on the upright seat vertically, a B-axis turntable arranged on the Z-axis slide seat, and a laser assembly arranged on the output end of the B-axis turntable. The X-axis slide seat is located behind the Y-axis slide seat, the tailstock center is coaxially arranged with the A-axis turntable, one end of the PCD tool is clamped on the A-axis turntable through a tool holder, and the other end of the PCD tool can be butted against the tailstock center. The Y-axis slide seat is driven by a Y-axis driving mechanism, the X-axis slide seat is driven by an X-axis driving mechanism, the Z-axis slide seat is driven by a Z-axis driving mechanism, the center slide seat is driven by a center driving mechanism, and the laser assembly is used for laser processing of the PCD tool.

[0007] As a further improvement of the above technical solution, the laser assembly includes a swing plate, a box body arranged on the upper half of the swing plate, and a transmission optical path and a laser processing head arranged on the box body. The lower half of the swing plate is drivingly connected to the output end of the B-axis turntable.

[0008] As a further improvement of the above technical solution, a heat insulation baffle is arranged on the front end face of the lower half of the swing plate.

[0009] As a further improvement of the above technical solution, an arc-shaped protective shell surrounding the B-axis turntable is arranged on the back of the lower half of the swing plate.

[0010] As a further improvement of the above technical solution, the B-axis turntable is a water-cooled direct drive motor, including a base shaft seat, a stator assembly fixedly sleeved on the base shaft seat, and a rotor assembly arranged outside the stator assembly. A cooling water path is arranged inside the base shaft seat.

[0011] As a further improvement of the above technical solution, two vertically extending Z-axis guide rails are arranged on the vertical seat, and the Z-axis slide seat is slidably connected to the Z-axis guide rails through Z-axis sliders; the Z-axis driving mechanism is a linear motor.

[0012] As a further improvement of the above technical solution, a bracket is arranged on the top of the vertical seat, and a load-reducing cylinder vertically downward is arranged on the bracket. The output end of the load-reducing cylinder is connected to the top of the Z-axis slide seat.

[0013] As a further improvement of the above technical solution, a dust suction housing is arranged between the A-axis turntable and the tailstock center. The dust suction housing is connected to a vacuum cleaner through a dust suction pipe, and a dust suction port facing the PCD tool is arranged on the dust suction housing.

[0014] As a further improvement of the above technical solution, two front-to-back extending Y-axis guide rails are arranged on the bed body, and the Y-axis slide seat is slidably connected to the Y-axis guide rails through Y-axis sliders; the Y-axis driving mechanism is a linear motor.

[0015] As a further improvement of the above technical solution, two left-to-right extending X-axis guide rails are arranged on the bed body, and the X-axis slide seat is slidably connected to the X-axis guide rails through X-axis sliders; the X-axis driving mechanism is a linear motor.

[0016] Advantages of the present utility model: The laser processing equipment provided by the present utility model is dedicated to the multi-axis linkage laser processing of PCD tools. Through a standard-sized tool holder, various structured PCD tools can be compatibly installed on the A-axis turntable for laser processing, thereby meeting the processing requirements of PCD tools with different lengths and shapes, and improving the processing flexibility and versatility. In addition, through the auxiliary support of the tailstock center, the problem of tail offset of long-structured PCD tools during processing is effectively solved, significantly improving the accuracy of the processing position and ensuring the smoothness of laser cutting. Brief Description of the Drawings

[0017] Figure 1 It is a perspective view of the laser processing equipment provided by the present utility model.

[0018] Figure 2 It is Figure 1 The partial enlarged view of area A in

[0019] Figure 3 It is a perspective view of the B-axis turntable.

[0020] Figure 4 It is a sectional view of the B-axis turntable.

[0021] Explanation of the main component symbols: 11 - bed, 12 - Y-axis slide, 13 - A-axis turntable, 14 - center slide, 15 - tailstock center, 16 - Y-axis drive mechanism, 17 - center drive mechanism, 21 - X-axis slide, 22 - vertical seat, 23 - Z-axis slide, 24 - B-axis turntable, 241 - base shaft seat, 242 - stator assembly, 243 - rotor assembly, 244 - cooling water channel, 25 - X-axis drive mechanism, 26 - Z-axis drive mechanism, 27 - bracket, 28 - load-reducing cylinder, 3 - laser assembly, 31 - swing plate, 32 - box body, 33 - laser processing head, 34 - heat insulation baffle, 35 - arc-shaped protective shell, 41 - dust suction housing, 42 - dust suction pipe. Detailed Description of the Specific Embodiment

[0022] The present utility model provides a laser processing equipment for manufacturing PCD tools. To make the purpose, technical solution and effect of the present utility model clearer and more definite, the following further elaborates on the present utility model with reference to the attached drawings and by way of examples. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the protection scope of the present utility model.

[0023] Please refer to Figure 1 and Figure 2The utility model provides a laser processing device for manufacturing PCD tools, comprising a bed 11, an X-axis slide 21 slidably arranged on the bed 11 along an X-axis, a Y-axis slide 12 slidably arranged on the bed 11 along a Y-axis, an A-axis turntable 13 fixed on the Y-axis slide 12, a top slide 14 slidably arranged on the Y-axis slide 12 along an X-axis, a tailstock top 15 arranged on the top slide 14, a stand 22 arranged on the X-axis slide 21, a Z-axis slide 23 slidably arranged on the stand 22, a B-axis turntable 24 arranged on the Z-axis slide 23, and a B-axis turntable 25 arranged on the B-axis turntable The laser assembly 3 is on the output end of the table 24, the X-axis slide 21 is located behind the Y-axis slide 12, the tailstock top 15 is coaxially arranged with the A-axis turntable 13, one end of the PCD tool is clamped on the A-axis turntable 13 through the tool holder, and the other end of the PCD tool can be docked with the tailstock top 15, the Y-axis slide 12 is driven by the Y-axis drive mechanism 16, the X-axis slide 21 is driven by the X-axis drive mechanism 25, the Z-axis slide 23 is driven by the Z-axis drive mechanism 26, the top slide 14 is driven by the top drive mechanism 17, and the laser assembly 3 is used for laser processing of the PCD tool.

[0024] During actual processing of the PCD tool, the PCD tool will be pre-installed on the tool holder, and then the clamping end of the tool holder is inserted into the clamping port of the A-axis turntable 13. The clamping system in the A-axis turntable 13 will then tighten and fix the tool holder to ensure that the PCD tool rotates safely and stably. It is understandable that the tool holder in the utility model will adopt a BT50 tool holder, and the clamping port of the A-axis turntable 13 is a BT50 interface. BT50 is a standard international general fixture installation specification, which is widely used in various machining centers and CNC machine tools. The BT50 tool holder is designed with a taper. When used in conjunction with the BT50 interface of the A-axis turntable 13, it can achieve fast and accurate positioning and clamping, reducing the time required for tool replacement and improving production efficiency. The close fit between the BT50 tool holder and the clamping port of the A-axis turntable 13 ensures high-precision positioning of the tool, which is particularly important for PCD tools that require high-precision processing and helps to improve the edge accuracy of the PCD tool.

[0025] If the length of the PCD tool is slightly shorter, the tailstock top 15 does not need to support the tail of the PCD tool, and the PCD tool can still rotate smoothly. If the length of the PCD tool is slightly longer, the tailstock top 15 on the top slide 14 is driven by the top drive mechanism 17 to move toward the A-axis turntable 13, and the tailstock top 15 supports the tail of the PCD tool to assist in supporting the tail of the PCD tool, so as to more accurately realize the axial positioning of the PCD tool and ensure the accuracy of the position processed by the laser component.

[0026] Under the action of the B-axis turntable 24, the Z-axis drive mechanism 26, and the X-axis drive mechanism 25, the laser assembly 3 can not only flexibly adjust its height but also rotate to adjust the processing angle, enabling the laser assembly 3 to be flexibly adjusted in multiple directions, improving the processing flexibility and efficiency, and guiding the laser beam to accurately focus on the cutting edge of the PCD tool. The PCD tool, under the action of the A-axis turntable 13 and the Y-axis drive mechanism 16, can not only move back and forth but also selectively adjust the circumferential position of the PCD tool, thereby realizing high-precision multi-axis laser cutting.

[0027] The laser processing equipment provided by the present utility model is dedicated to the multi-axis linkage laser processing of PCD tools. Through a standard-sized tool holder, PCD tools with various structures can be compatibly installed on the A-axis turntable 13 for laser processing, thus meeting the processing requirements of PCD tools with different lengths and shapes, and improving the processing flexibility and versatility. In addition, through the auxiliary support of the tailstock center 15, the problem of tail offset of long-structured PCD tools during the processing is effectively solved, significantly improving the accuracy of the processing position and ensuring the smoothness of laser cutting.

[0028] Specifically, the laser assembly 3 includes a swing plate 31, a box body 32 provided in the upper half of the swing plate 31, and a transmission optical path and a laser processing head 33 provided on the box body 32. The lower half of the swing plate 31 is drivingly connected to the output end of the B-axis turntable 24. Driven by the B-axis turntable 24, the laser assembly 3 can rotate and swing according to the processing requirements to adjust the laser processing angle.

[0029] Since a large amount of heat radiation is generated during the laser processing, it is easy to cause thermal expansion of the adjacent B-axis turntable 24, thereby affecting the processing accuracy. Therefore, a heat insulation baffle 34 is provided on the front end face of the lower half of the swing plate 31. The presence of the heat insulation baffle 34 effectively isolates the high temperature generated during the laser processing from directly transferring to the swing plate 31 and its adjacent components, especially the B-axis turntable 24, reducing the influence of heat conduction and heat radiation on precision components, and further protecting the B-axis turntable 24 from accuracy loss caused by thermal expansion.

[0030] Furthermore, an arc-shaped protective shell 35 surrounding the B-axis turntable 24 is provided on the back of the lower half of the swing plate 31. The arc-shaped protective shell 35 and the heat insulation baffle 34 together form a double thermal barrier, effectively controlling the diffusion path of heat energy and reducing the influence of heat radiation on the B-axis turntable 24 and its nearby areas. At the same time, the arc-shaped design is conducive to forming natural ventilation, which helps with heat exchange and heat dissipation inside the system.

[0031] In this embodiment, see Figure 3 and Figure 4As shown, the B-axis turntable 24 is a water-cooled direct drive motor, including a base shaft housing 241, a stator assembly 242 fixedly sleeved on the base shaft housing 241, and a rotor assembly 243 arranged outside the stator assembly 242. A cooling water channel 244 is provided inside the base shaft housing 241. The cooling water channel 244 is directly integrated inside the base shaft housing 241, which can quickly and effectively take away the heat generated during the operation of the motor, prevent performance degradation or damage caused by overheating, and also quickly take away a large amount of heat radiation generated during the laser processing, preventing the machining accuracy from decreasing due to thermal expansion. Especially during long-term continuous operation, it can maintain the thermal stability of the system.

[0032] Preferably, two vertically extending Z-axis guide rails are provided on the vertical seat 22, and the Z-axis slide 23 is slidably connected to the Z-axis guide rails through Z-axis sliders to ensure smooth and stable movement of the Z-axis slide 23; the Z-axis drive mechanism 26 is a linear motor, which has the advantages of thin and light structure, high transmission efficiency, safety and reliability, and long service life. The stator of the linear motor is fixed on the vertical seat 22, and the mover of the linear motor is connected to the back surface of the Z-axis slide 23.

[0033] Furthermore, a bracket 27 is provided at the top of the vertical seat 22, and a load-reducing cylinder 28 is provided vertically downward on the bracket 27. The output end of the load-reducing cylinder 28 is connected to the top of the Z-axis slide 23. The load-reducing cylinder 28 can provide a corresponding reverse force when the Z-axis slide 23 moves up and down, thereby reducing the load on the linear motor that drives the Z-axis slide 23 to move up and down, reducing the power requirement of the linear motor, and increasing the service life of the linear motor.

[0034] Preferably, a dust suction housing 41 is provided between the A-axis turntable 13 and the tailstock center 15. The dust suction housing 41 is connected to a dust collector through a dust suction pipe 42, and a dust suction port facing the PCD tool is provided on the dust suction housing 41. The dust suction housing 41 can directly capture and collect the dust and debris generated during the processing of the PCD tool, and convey them to the dust collector through the dust suction pipe 42, effectively preventing the dust from spreading into the working environment and keeping the working area clean.

[0035] In this embodiment, two Y-axis guide rails extending forward and backward are provided on the bed body 11, and the Y-axis slide 12 is slidably connected to the Y-axis guide rails through Y-axis sliders to ensure smooth and stable movement of the Y-axis slide 12; the Y-axis drive mechanism 16 is a linear motor, the stator of which is fixed on the bed body 11, and the mover of the linear motor is connected to the bottom surface of the Y-axis slide 12.

[0036] In this embodiment, two X-axis guide rails extending left and right are provided on the bed body 11 to ensure the smooth and stable movement of the X-axis slide 21. The X-axis slide 21 is slidably connected to the X-axis guide rails through X-axis sliders; the X-axis driving mechanism 25 is a linear motor, the stator of which is fixed on the bed body 11, and the mover of the linear motor is connected to the bottom surface of the X-axis slide 21.

[0037] In this embodiment, the center driving mechanism 17 is a linear module. The transmission slider on the linear module is fixedly connected to the bottom surface of the center slide 14. The linear module has a high integration level, excellent linear motion accuracy and repeat positioning accuracy, which can ensure the precise movement of the tailstock center 15 in the X-axis direction, thereby realizing the precise support for the tail of the PCD tool and improving the positioning accuracy during the machining process.

[0038] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0039] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection or can communicate with each other; it can be a direct connection, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solutions and the inventive concept of the present invention, and all such changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A laser processing device for manufacturing PCD tools, characterized in that: The invention comprises a bed, an X-axis slide slidably arranged on the bed along the X-axis, a Y-axis slide slidably arranged on the bed along the Y-axis, an A-axis turntable fixed on the Y-axis slide, a top slide slidably arranged on the Y-axis slide along the X-axis, a tailstock top arranged on the top slide, a stand arranged on the X-axis slide, a Z-axis slide slidably arranged on the stand, a B-axis turntable arranged on the Z-axis slide, and a laser assembly arranged on the output end of the B-axis turntable, wherein the X-axis slide is located behind the Y-axis slide, the tailstock top is coaxially arranged with the A-axis turntable, one end of the PCD tool is clamped on the A-axis turntable through a tool holder, and the other end of the PCD tool can be docked with the tailstock top, the Y-axis slide is driven by a Y-axis drive mechanism, the X-axis slide is driven by an X-axis drive mechanism, the Z-axis slide is driven by a Z-axis drive mechanism, the top slide is driven by a top drive mechanism, and the laser assembly is used for laser processing of the PCD tool.

2. The laser processing equipment for manufacturing PCD tools according to claim 1, characterized in that: The laser assembly includes a swing plate, a box body arranged on the upper half of the swing plate, and a transmission optical path and a laser processing head arranged on the box body. The lower half of the swing plate is drivingly connected to the output end of the B-axis turntable.

3. The laser processing equipment for manufacturing PCD tools according to claim 2, characterized in that: A heat insulation baffle is provided on the front end surface of the lower half of the swing plate.

4. The laser processing equipment for manufacturing PCD cutting tools according to claim 2, characterized in that: An arc-shaped protective shell surrounding the B-axis turntable is provided on the back side of the lower half of the swing plate.

5. The laser processing equipment for manufacturing PCD cutting tools according to claim 1, characterized in that: The B-axis turntable is a water-cooled direct-drive motor, comprising a base shaft base, a stator assembly fixedly sleeved on the base shaft base, and a rotor assembly arranged outside the stator assembly. A cooling water circuit is arranged inside the base shaft base.

6. The laser processing equipment for manufacturing PCD cutting tools according to claim 1, characterized in that: The stand is provided with two vertically extending Z-axis guide rails, and the Z-axis slide is slidably connected to the Z-axis guide rails via a Z-axis slider; the Z-axis driving mechanism is a linear motor.

7. The laser processing equipment for manufacturing PCD cutting tools according to claim 6, characterized in that: A bracket is provided on the top of the stand, and a load-reducing cylinder is provided on the bracket and is vertically downwardly directed. The output end of the load-reducing cylinder is connected to the top of the Z-axis slide.

8. The laser processing equipment for manufacturing PCD cutting tools according to claim 1, characterized in that: A dust suction shell is arranged between the A-axis turntable and the tailstock top, the dust suction shell is connected with the dust collector through a dust suction pipe, and a dust suction port facing the PCD tool is opened on the dust suction shell.

9. The laser processing equipment for manufacturing PCD cutting tools according to claim 1, characterized in that: The bed is provided with two Y-axis guide rails extending forward and backward, and the Y-axis slide is slidably connected with the Y-axis guide rails via a Y-axis slider; the Y-axis driving mechanism is a linear motor.

10. The laser processing equipment for manufacturing PCD cutting tools according to claim 1, characterized in that: The bed is provided with two X-axis guide rails extending left and right, and the X-axis slide is slidably connected with the X-axis guide rails through an X-axis slider; the X-axis driving mechanism is a linear motor.

Images