Diamond compact laser chamfering and circumference cutting device

Abstract

This invention discloses a laser chamfering and circumferential cutting device for diamond composite sheets, belonging to the field of laser cutting device technology. The invention includes a device housing, inside which a laser cutting device body is housed. A material-pressing device is located at the bottom of the inner wall of the housing. The material-pressing device includes two linear motors and two elastic telescopic columns fixed to the bottom of the inner wall of the housing. A moving plate is slidably mounted between the tops of the two linear motors. The top of the moving plate has several evenly spaced circular grooves. An inverted geometric rod is fixed between the tops of the telescopic ends of the two elastic telescopic columns, and abutment posts are fixed on both sides of the geometric rod. This invention achieves continuous operation—cutting and immediately dropping the material, and immediately chamfering—by driving the moving plate with linear motors between the cutting position and the material-dropping trigger position, completely eliminating the time wasted on transferring, waiting, and re-clamping workpieces between different devices.

Description

Technical Field

[0001] This invention relates to the field of laser cutting equipment technology, specifically to a laser chamfering and circumferential cutting device for diamond composite sheets. Background Technology

[0002] The diamond composite sheet laser cutting machine is a highly efficient and precise processing equipment. Utilizing laser technology, it achieves chamfering and rounding processes through laser cutting, enabling high-quality chamfering and rounding of diamond composite sheet materials. Its features include high processing accuracy, fast cutting speed, and a small heat-affected zone. It is suitable for industries such as electronics, machinery, and aerospace, improving product surface quality and overall process level.

[0003] Chinese patent CN210306296U discloses a high-precision chamfering device for polycrystalline diamond composite sheets. The device includes a support frame, with pulleys connected to the inner side of the support frame via pins. A diamond composite sheet is placed on the top of the pulleys. A lead screw is screwed to the front of the support frame, and a push plate is mounted on the rear end of the lead screw via a bearing. The inner ring of the bearing is interference-fitted with the lead screw, and the outer ring of the bearing is fixedly connected to the side wall of the push plate. A sliding rod is embedded in the rear inner cavity of the support frame, and a rotating mechanism is provided on the inner side of the sliding rod. This high-precision chamfering device for polycrystalline diamond composite sheets clamps the diamond composite sheet using the support frame and push plate, avoiding traditional external cylindrical clamping. It primarily uses the PCD end face for positioning, thus avoiding chamfering deviations caused by adverse effects from external cylindrical accuracy, height deviation, perpendicularity, and taper. The sliding rod and groove structures allow for laser generator angle adjustment, enabling small-angle processing. The device offers significant advantages and strong applicability.

[0004] However, the current cutting device has the following problems: after the laser cutting of the composite sheet is completed, it is not convenient to simultaneously perform the chamfering operation of the composite sheet. The laser cutting and chamfering operations are not performed on the same equipment, and the workpiece needs to be transferred or waited, which will affect the production efficiency and increase the time cost of the entire processing. Therefore, we have proposed a laser chamfering and circumferential cutting device for diamond composite sheets. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a laser chamfering and circumferential cutting device for diamond composite sheets, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a laser chamfering and circumferential cutting device for diamond composite sheets, comprising a device housing, inside which a laser cutting device body is disposed, and a pressing device is disposed at the bottom of the inner wall of the device housing, the pressing device comprising two linear motors and two elastic telescopic columns fixed to the bottom of the inner wall of the device housing, a movable plate slidably mounted between the tops of the two linear motors, a plurality of circular grooves evenly spaced on the top of the movable plate, an inverted geometric rod fixed between the tops of the telescopic ends of the two elastic telescopic columns, abutting columns fixed on both sides of the geometric rod, a plurality of telescopic pressure rods evenly spaced on the bottom of the geometric rod, and a plurality of L-shaped triangular block rods evenly spaced on both sides of the movable plate.

[0007] According to the above technical solution, an inverted triangular block is fixed on one side of the two L-shaped triangular block rods that are close to each other, and the abutting post is located on the movement trajectory of the inclined surface of the triangular block of the L-shaped triangular block rod.

[0008] According to the above technical solution, the two L-shaped triangular blocks are directly opposite the circular grooves in the same column on the top of the moving plate, and the several telescopic pressure rods are directly opposite the center of the circular grooves of the moving plate.

[0009] According to the above technical solution, a positioning device is provided at the movable plate. The positioning device includes two trapezoidal plates fixed to the bottom of the inner wall of the device housing, and several sliding rods that pass through and slide on both sides of the movable plate. A side plate is fixed between the sides of the several sliding rods away from the movable plate. A spring is provided between the side plate and the outer wall of the movable plate. Several L-shaped rods are evenly and equidistantly fixed on the side of the adjacent sliding rods that are close to each other. The several L-shaped rods are located on both sides of the circular groove of the movable plate. Two elastic telescopic top rods are fixed on the side of two adjacent L-shaped rods that are close to the circular groove of the movable plate.

[0010] According to the above technical solution, the inside of the movable plate is provided with a sliding groove for the displacement of the L-shaped rod, and the inner walls of the circular groove of the movable plate are provided with through grooves for the elastic telescopic top rod to pass through.

[0011] According to the above technical solution, the rear end face of the side plate is semi-circular, and the inclined surface of the trapezoidal plate is located on the semi-circular motion trajectory of the side plate.

[0012] According to the above technical solution, a pushing device is provided at the moving plate. The pushing device includes an electric push rod fixed to the bottom of the moving plate. A connecting plate is fixed to the front side of the telescopic end of the electric push rod. Several transfer plates are fixed to the rear side of the connecting plate. The transfer plates pass through the front side of the moving plate. Several push columns are evenly and equidistantly fixed to the top of the transfer plates. Two of the push columns form a group.

[0013] According to the above technical solution, the inside of the movable plate is provided with a through groove for the push column to move, and the push column and the circular groove of the movable plate are staggered.

[0014] According to the above technical solution, an alternation device is provided at the movable plate. The alternation device includes a U-shaped frame that is horizontally slidably installed on the top of the movable plate and a friction plate that is vertically slidably installed on the front outer wall of the movable plate. The two sides of the friction plate are respectively hinged to the front outer walls of the two side plates through telescopic hinge rods.

[0015] According to the above technical solution, the top of the friction plate and the bottom of the spiral frame are both rough surfaces, and the bottom of the spiral frame is located on the movement trajectory of the friction plate.

[0016] This invention provides a laser chamfering and circumferential cutting device for diamond composite sheets. It has the following beneficial effects: (1) By setting up a pressing device, the present invention enables the linear motor, moving plate, main body of laser cutting device, L-shaped triangular block rod, abutting column, geometric rod and elastic telescopic column to drive the main body of laser cutting device to perform laser chamfering on diamond composite sheet. Thus, the linear motor drives the moving plate to reciprocate between the cutting position and the material dropping trigger position, realizing continuous operation of laser cutting device main body cutting and material dropping, and chamfering, completely eliminating the time waste of workpiece transfer, waiting and secondary clamping between different equipment.

[0017] (2) By setting up a positioning device, the present invention enables the linear motor, moving plate, sliding rod, side plate and trapezoidal plate to work together to drive the elastic telescopic top rod to apply uniform pressure from the side through the L-shaped rod, so as to force the diamond composite sheet to be aligned with the center of the circular groove of the moving plate, thereby ensuring the absolute concentricity of the laser chamfering spot path and the edge of the workpiece, avoiding uneven chamfering or scrap due to positioning deviation, and clamping is completed before the diamond composite sheet is chamfered, providing rigid support for the workpiece, effectively suppressing processing vibration, and ensuring the smoothness and dimensional consistency of the chamfered surface.

[0018] (3) The present invention uses an alternating device to make the friction plate move upward along the outer wall of the moving plate by the cooperation of the circular frame, the moving plate, the side plate and the telescopic hinge rod until the top of the friction plate abuts against the bottom of the circular frame. Under the action of the friction force of the rough surface between the friction plate and the circular frame, the friction plate will lock the position of the circular frame, effectively preventing the material plate from crawling or micro-moving due to laser impact or equipment vibration during the processing, thereby ensuring the processing accuracy of each composite sheet. At the same time, the staff only needs to put the material plate into the circular frame, and the side plate will automatically trigger the locking when it moves forward. There is no need to perform a separate manual locking step, which reduces the manual intervention link, reduces the risk of quality accidents caused by forgetting to lock, and improves the production cycle and the smoothness of automated production. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the entire invention. Figure 1 ; Figure 2 This is a schematic diagram of the entire invention. Figure 2 ; Figure 3 This is a schematic diagram of the feeding device of the present invention; Figure 4 This is a schematic diagram of a partial cross-section of the feeding device of the present invention; Figure 5 This is a schematic diagram of the alternation device of the present invention; Figure 6 This is a schematic diagram of the pressing device of the present invention; Figure 7 This is a schematic diagram of the feeding device of the present invention. Figure 1 ; Figure 8 This is a schematic diagram of the feeding device of the present invention. Figure 2 .

[0020] In the diagram: 1. Device housing; 2. Laser cutting device body; 3. Positioning device; 31. Trapezoidal plate; 32. Side plate; 33. Sliding rod; 34. L-shaped rod; 35. Elastic telescopic top rod; 4. Pressing device; 41. L-shaped triangular block rod; 42. Elastic telescopic column; 43. Abutting column; 44. Z-shaped rod; 45. Telescopic pressure rod; 46. Moving plate; 47. Linear motor; 5. Pushing device; 51. Connecting plate; 52. Transfer plate; 53. Push column; 54. Electric push rod; 6. Alternating device; 61. U-shaped frame; 62. Friction plate; 63. Telescopic hinge rod. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] Please see Figure 1 - Figure 8This invention provides a technical solution: a laser chamfering and circumferential cutting device for diamond composite sheets, comprising a device housing 1, a laser cutting device body 2 disposed inside the device housing 1, and a pressing device 4 disposed at the bottom of the inner wall of the device housing 1. The pressing device 4 includes two linear motors 47 and two elastic telescopic columns 42 fixed to the bottom of the inner wall of the device housing 1. A movable plate 46 is slidably installed between the tops of the two linear motors 47. The top of the movable plate 46 is evenly and equidistantly provided with a plurality of circular grooves. An inverted geometric rod 44 is fixed between the tops of the telescopic ends of the two elastic telescopic columns 42. Abutment columns 43 are fixed on both sides of the geometric rod 44. A plurality of telescopic pressure rods 45 are evenly and equidistantly fixed at the bottom of the geometric rod 44. Several L-shaped triangular blocks 41 are evenly and equidistantly fixed on both sides of the moving plate 46. An inverted triangular block is fixed on the side of two L-shaped triangular blocks 41 that are close to each other. The abutment post 43 is located on the movement trajectory of the inclined surface of the triangular block of the L-shaped triangular block 41. The two L-shaped triangular blocks 41 are directly opposite the circular grooves in the same column at the top of the moving plate 46. Several telescopic pressure rods 45 are directly opposite the center of the circular grooves of the moving plate 46. Through the above structure, the linear motor 47 drives the moving plate 46 to reciprocate between the cutting position and the material dropping trigger position, realizing the continuous operation of the laser cutting device body 2 cutting and dropping, and chamfering, completely eliminating the time wasted in transferring, waiting and secondary clamping of the workpiece between different devices.

[0023] A positioning device 3 is provided at the movable plate 46. The positioning device 3 includes two trapezoidal plates 31 fixed to the bottom of the inner wall of the outer casing 1, and several sliding rods 33 that pass through and slide on both sides of the movable plate 46. A side plate 32 is fixed between the sides of the sliding rods 33 away from the movable plate 46. A spring is provided between the side plate 32 and the outer wall of the movable plate 46. Several L-shaped rods 34 are evenly and equidistantly fixed on the sides of adjacent sliding rods 33 that are close to each other. The L-shaped rods 34 are located on both sides of the circular groove of the movable plate 46. The sides of two adjacent L-shaped rods 34 that are close to the circular groove of the movable plate 46 are evenly and equidistant. Two elastic telescopic top rods 35 are fixed. The interior of the moving plate 46 is provided with a groove for the displacement of the L-shaped rod 34. The inner walls of the circular groove of the moving plate 46 are provided with through grooves for the elastic telescopic top rods 35 to pass through. The rear end face of the side plate 32 is semi-circular. The inclined surface of the trapezoidal plate 31 is located on the semi-circular movement trajectory of the side plate 32. With the above structure, the elastic telescopic top rods 35 apply uniform pressure from the side through the L-shaped rods 34, forcibly correcting the diamond composite sheet to the center of the circular groove of the moving plate 46, thereby ensuring the absolute concentricity of the laser chamfering spot path and the edge of the workpiece.

[0024] A pushing device 5 is provided at the moving plate 46. The pushing device 5 includes an electric push rod 54 fixed to the bottom of the moving plate 46. A connecting plate 51 is fixed to the front side of the telescopic end of the electric push rod 54. Several transfer plates 52 are fixed to the rear side of the connecting plate 51. The transfer plates 52 pass through the front side of the moving plate 46. Several push columns 53 are evenly and equidistantly fixed to the top of the transfer plates 52. Two of the push columns 53 form a group. The interior of the moving plate 46 is provided with a through groove for the push columns 53 to move. The push columns 53 and the circular groove of the moving plate 46 are staggered. Through the above structure, the transfer plates 52 and the push columns 53 will drive the laser-beveled diamond composite sheet to move out of the circular groove of the moving plate 46. The top of the moving plate 46 can be prepared for the placement of the material plate. This timing logic ensures that the loading and unloading do not interfere with each other.

[0025] According to the above technical solution, an alternation device 6 is provided at the moving plate 46. The alternation device 6 includes a loop frame 61 that is horizontally slidably installed on the top of the moving plate 46 and a friction plate 62 that is vertically slidably installed on the front outer wall of the moving plate 46. The two sides of the friction plate 62 are respectively hinged to the front outer walls of the two side plates 32 through telescopic hinge rods 63. The top of the friction plate 62 and the bottom of the loop frame 61 are both rough surfaces. The bottom of the loop frame 61 is located on the movement trajectory of the friction plate 62. Through the above structure, the friction plate 62 locks the position of the loop frame 61, effectively preventing the material plate from crawling or micro-moving due to laser impact or equipment vibration during the processing, thereby ensuring the processing accuracy of each composite sheet.

[0026] In use, the material plate is placed on the moving plate 46, and the linear motor 47 is started. The linear motor 47 drives the moving plate 46 to move backward until the moving plate 46 moves to the position below the main body 2 of the laser cutting device. The operator starts the main body 2 of the laser cutting device, which will perform circumferential cutting on the material plate. At this time, the cut diamond composite sheet is in a seamless micro-connection state with the material plate. The linear motor 47 is started again, and the linear motor 47 drives the moving plate 46 to move forward. During this process, the moving plate 46 drives the L-shaped triangular block rod 41 to move along with it. When the L-shaped triangular block rod 41 moves to the position of the abutment post 43, the inclined surface of the triangular block of the L-shaped triangular block rod 41 pushes the abutment post 43, causing the geometric rod 44 to move downward. The geometric rod 44 moves downward against the elastic telescopic post. The telescopic end of 42 is squeezed, and the geometric rod 44 drives the telescopic pressure rod 45 to move downward. The telescopic pressure rod 45 pushes the diamond composite sheet on the material plate downward and separates it from the material plate. The diamond composite sheet falls into the circular groove of the moving plate 46. The linear motor 47 is started again, and the linear motor 47 drives the moving plate 46 to move backward until the moving plate 46 moves to the position below the main body 2 of the laser cutting device. The main body 2 of the laser cutting device will perform laser chamfering on the diamond composite sheet. By driving the moving plate 46 to reciprocate between the cutting position and the material dropping trigger position through the linear motor 47, the continuous operation of the main body 2 of the laser cutting device is realized, which is cutting and dropping, and dropping and chamfering. This completely eliminates the time wasted in transferring, waiting and secondary clamping of the workpiece between different devices.

[0027] It should be noted that when the material plate is not being cut and the moving plate 46 moves the material plate to the rear, the telescopic pressure rod 45 moves downward as the geometric rod 44 moves downward. After the telescopic pressure rod 45 comes into contact with the top of the material plate, the telescopic pressure rod 45 will retract adaptively.

[0028] After the diamond composite sheet falls into the circular groove of the moving plate 46, it may experience slight eccentricity or wobbling due to gravity alone. As the linear motor 47 drives the moving plate 46 to move backward, the moving plate 46 moves the side plate 32 along with it via the slide rod 33. When the side plate 32 moves to the position of the trapezoidal plate 31, the inclined surface of the trapezoidal plate 31 pushes the side plate 32 to move the slide rod 33 towards the moving plate 46. The slide rod 33 moves the elastic telescopic top rod 35 along with it via the L-shaped rod 34. The elastic telescopic top rod 35 applies uniform pressure from the side via the L-shaped rod 34, forcibly correcting the diamond composite sheet to the center of the circular groove of the moving plate 46. This ensures the absolute concentricity of the laser chamfering spot path and the workpiece edge, avoiding uneven chamfering or scrap due to positioning deviation. Furthermore, the clamping is completed before the diamond composite sheet is chamfered, providing rigid support for the workpiece, effectively suppressing processing vibration, and ensuring the smoothness and dimensional consistency of the chamfered surface.

[0029] It should be noted that the elastic telescopic top rod 35 is designed to be elastically telescopic, allowing for adaptive positioning of diamond composite sheets of different sizes.

[0030] After the laser chamfering of the diamond composite sheet is completed, the linear motor 47 drives the moving plate 46 to move forward. Then, the operator starts the electric push rod 54. The telescopic end of the electric push rod 54 pushes the connecting plate 51 to move the transfer plate 52 forward. The transfer plate 52 and the push column 53 will move the laser-chamfered diamond composite sheet out of the circular groove of the moving plate 46. The top of the moving plate 46 can be prepared for the placement of the material plate. This timing logic ensures that the loading and unloading do not interfere with each other.

[0031] During the process of placing the material plate on top of the moving plate 46, the material plate is positioned inside the loop frame 61. The operator moves the material plate to the top side of the moving plate 46 via the loop frame 61. As the inclined surface of the trapezoidal plate 31 pushes the side plate 32 towards the moving plate 46, the side plate 32 pushes the telescopic hinge rod 63 to move the friction plate 62 upward along the outer wall of the moving plate 46 until the top of the friction plate 62 abuts against the bottom of the loop frame 61. Under the frictional force of the rough surface between the friction plate 62 and the loop frame 61, the friction plate 62 locks the position of the loop frame 61, effectively preventing the material plate from crawling or micro-moving due to laser impact or equipment vibration during processing. This ensures the processing accuracy of each composite sheet. At the same time, the operator only needs to place the material plate into the loop frame 61, and the side plate 32 will automatically trigger locking as it moves forward. There is no need for a separate manual locking step, reducing manual intervention, lowering the risk of quality accidents caused by forgetting to lock, and improving the production cycle and the smoothness of automated production.

[0032] It should be noted that after the top of the friction plate 62 abuts against the bottom of the loop frame 61, the telescopic hinge rod 63 will adaptively retract as the side plate 32 continues to move.

[0033] It should also be noted that after the worker moves the material plate to the top side of the moving plate 46 via the loop frame 61 and the material plate is laser-cut, when the worker will laser-cut the material plate again, the worker will move the material plate to the other side of the top of the moving plate 46 via the loop frame 61. At this time, the circular hole produced by the first cut on the material plate will be misaligned with the circular groove of the moving plate 46, so that the material plate can be laser-cut again. The loop frame 61 is adapted to the size of the material plate, and the size of the loop frame 61 can be adaptively changed according to the size of the material plate.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A laser chamfering and circumferential cutting device for diamond composite sheets, comprising a device housing (1), characterized in that: The device housing (1) is equipped with a laser cutting device body (2) inside. The inner wall of the device housing (1) is equipped with a pressing device (4). The pressing device (4) includes two linear motors (47) and two elastic telescopic columns (42) fixed to the bottom of the inner wall of the device housing (1). A moving plate (46) is slidably installed between the tops of the two linear motors (47). Several circular grooves are evenly and equidistantly opened on the top of the moving plate (46). An inverted geometric rod (44) is fixed between the tops of the telescopic ends of the two elastic telescopic columns (42). Abutting columns (43) are fixed on both sides of the geometric rod (44). Several telescopic pressure rods (45) are evenly and equidistantly fixed on the bottom of the geometric rod (44). Several L-shaped triangular block rods (41) are evenly and equidistantly fixed on both sides of the moving plate (46).

2. The laser chamfering and circumferential cutting device for diamond composite sheets according to claim 1, characterized in that: An inverted triangular block is fixed on one side of the two L-shaped triangular block rods (41) that are close to each other, and the abutting post (43) is located on the movement trajectory of the inclined surface of the triangular block of the L-shaped triangular block rod (41).

3. The laser chamfering and circumferential cutting device for diamond composite sheets according to claim 1, characterized in that: The two L-shaped triangular blocks (41) face the same row of circular grooves on the top of the moving plate (46), and the several telescopic pressure rods (45) face the center of the circular grooves of the moving plate (46).

4. The laser chamfering and circumferential cutting device for diamond composite sheets according to claim 1, characterized in that: A positioning device (3) is provided at the movable plate (46). The positioning device (3) includes two trapezoidal plates (31) fixed to the bottom of the inner wall of the device housing (1) and several sliding rods (33) that pass through and slide on both sides of the movable plate (46). A side plate (32) is fixed between the sides of the several sliding rods (33) away from the movable plate (46). A spring is provided between the side plate (32) and the outer wall of the movable plate (46). Several L-shaped rods (34) are evenly and equidistantly fixed on the side of the adjacent sliding rods (33) that are close to each other. Several L-shaped rods (34) are located on both sides of the circular groove of the movable plate (46). Two elastic telescopic top rods (35) are fixed on the side of the adjacent two L-shaped rods (34) that are close to the circular groove of the movable plate (46).

5. The laser chamfering and circumferential cutting device for diamond composite sheets according to claim 4, characterized in that: The movable plate (46) has a sliding groove inside for the L-shaped rod (34) to move, and the inner walls of the circular groove of the movable plate (46) have through grooves on both sides for the elastic telescopic top rod (35) to pass through.

6. The laser chamfering and circumferential cutting device for diamond composite sheets according to claim 4, characterized in that: The rear end face of the side plate (32) is semi-circular, and the inclined surface of the trapezoidal plate (31) is located on the semi-circular motion trajectory of the side plate (32).

7. The laser chamfering and circumferential cutting device for diamond composite sheets according to claim 1, characterized in that: A pushing device (5) is provided at the moving plate (46). The pushing device (5) includes an electric push rod (54) fixed at the bottom of the moving plate (46). A connecting plate (51) is fixed to the front side of the telescopic end of the electric push rod (54). Several transfer plates (52) are fixed to the rear side of the connecting plate (51). The transfer plates (52) penetrate the front side of the moving plate (46). Several push columns (53) are evenly and equidistantly fixed to the top of the transfer plates (52). Two of the push columns (53) form a group.

8. The laser chamfering and circumferential cutting device for diamond composite sheets according to claim 1, characterized in that: The movable plate (46) has a through groove for the push column (53) to move inside, and the push column (53) and the circular groove of the movable plate (46) are staggered.

9. The laser chamfering and circumferential cutting device for diamond composite sheets according to claim 4, characterized in that: An alternation device (6) is provided at the movable plate (46). The alternation device (6) includes a loop frame (61) that is horizontally slidably installed on the top of the movable plate (46) and a friction plate (62) that is vertically slidably installed on the front outer wall of the movable plate (46). The two sides of the friction plate (62) are respectively hinged to the front outer walls of the two side plates (32) by telescopic hinge rods (63).

10. The laser chamfering and circumferential cutting device for diamond composite sheets according to claim 9, characterized in that: The top of the friction plate (62) and the bottom of the spiral frame (61) are both rough surfaces, and the bottom of the spiral frame (61) is located on the movement trajectory of the friction plate (62).

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