Cutter machining method and cutter machining device capable of cutting first and then grooving

Abstract

The invention discloses a first-cutting-and-second-grooving cutter machining method and device. The first-cutting-and-second-grooving cutter machining method comprises the following steps that S1, a clamping mechanism clamps a to-be-machined cutter in a material disc and inserts the to-be-machined cutter to a clamping mechanism at a feeding and discharging station; s2, the rotating table rotates by 90 degrees clockwise, then the clamping mechanism at the feeding and discharging station and the cutter are driven to rotate to the edge grinding station together, and then the tip corner of the cutter is ground through the edge grinding mechanism to form a tip edge; s3, the rotating table rotates clockwise by 90 degrees, then the clamping mechanism at the edge grinding station and the cutter are driven to rotate to the grooving station together, and then a spiral groove is formed in the peripheral side of the cutter through machining of a grooving mechanism; and S4, the rotating table rotates clockwise by 90 degrees, then the clamping mechanism at the grooving station and the tool are driven to rotate to the edge cleaning station together, then the edge cleaning mechanism grinds the peripheral side of the tool to form an escape face, and therefore the machining process of the tool is completed. The machining precision of the tool can be improved, and the percent of pass is higher.

Description

Technical Field

[0001] The invention relates to the technical field of tool processing, and in particular to a tool processing method and a tool processing device with a blade first and a groove later. Background Art

[0002] The processing method of the existing tool processing equipment is as follows: the tool rotates counterclockwise on a rotating table, each time it rotates 90°, and the tool to be processed passes through the loading and unloading mechanism, the grooving mechanism, the blade grinding mechanism and the edge cleaning mechanism in sequence to perform the processing steps of loading, grooving, grinding the tip edge and opening the escape surface, thereby completing the tool processing process, and finally the tool returns to the loading and unloading mechanism for the clamping mechanism to clamp the material out. Since the tool is first grooved, that is, the spiral groove is first processed, the tool is no longer the original complete round rod shape, which affects the accuracy and stability of the axial rotation of the tool, resulting in the subsequent grinding of the tip edge, which is easy to affect the processing accuracy of the tip edge. At the same time, when grinding the tip edge, it is also easy to damage the edge of the spiral groove, thereby affecting the overall processing accuracy of the tool, and then affecting the quality of the tool, resulting in a low pass rate of the tool. Summary of the invention

[0003] The present invention aims to provide a tool processing method with an edge first and a groove later, so as to solve the above-mentioned technical problems.

[0004] To achieve the above object, the technical solution of the present invention is: a cutting tool processing method with a cutting edge first and a groove later, comprising the following steps: S1. The clamping mechanism clamps the tool to be processed in the material tray and inserts it into the clamping mechanism at the loading and unloading station; S2. The rotary table rotates 90° clockwise, thereby driving the clamping mechanism and the tool at the loading and unloading station to rotate to the blade grinding station, and then the tip angle of the tool is ground by the blade grinding mechanism to form a tip edge; S3. The rotary table rotates 90° clockwise, thereby driving the clamping mechanism and the tool at the blade grinding station to rotate to the grooving station, and then the grooving mechanism is used to form a spiral groove on the circumference of the tool; S4. The rotary table rotates 90° clockwise, thereby driving the clamping mechanism and the tool at the grooving station to rotate to the edge cleaning station, and then the edge cleaning mechanism is used to grind the circumference of the tool to form an escape surface; S5. The rotary table rotates 90° clockwise, thereby driving the clamping mechanism and the tool at the edge cleaning station to rotate to the loading and unloading station, and then the clamping mechanism is used to clamp the processed tool and place it in the material tray.

[0005] The present invention also provides a tool processing device for realizing the tool processing method of first cutting edge and then groove as described above, the tool processing device comprises a machine platform, on which loading and unloading stations, blade grinding stations, groove cutting stations and edge cleaning stations are arranged in sequence in a clockwise direction, and loading and unloading mechanisms, blade grinding mechanisms, groove cutting mechanisms and edge cleaning mechanisms are installed correspondingly at the loading and unloading stations, blade grinding stations, groove cutting stations and edge cleaning stations, respectively. A rotating table is provided in the middle of the machine platform, and the rotating table is connected to a driving mechanism for driving the rotating table to lift and rotate. Four clamping mechanisms are arranged on the peripheral side of the rotating table, and the angle between two adjacent clamping mechanisms is 90°. The four clamping mechanisms correspond to the loading and unloading mechanisms, blade grinding mechanisms, groove cutting mechanisms and edge cleaning mechanisms, respectively. The loading and unloading mechanisms comprise a conveying mechanism, a material tray arranged on the conveying mechanism and a clamping mechanism installed at one end of the conveying mechanism, and the clamping mechanism is used to clamp the tool to be processed in the material tray and insert it into the clamping mechanism at the loading and unloading stations and / or clamp the processed tool and place it in the material tray.

[0006] Preferably, the loading and unloading stations, the blade grinding station, the groove cutting station, and the edge cleaning station are also respectively provided with support mechanisms for supporting the tool.

[0007] Preferably, the tool is a drill bit, which includes a coaxially arranged drill shank and a drill needle, and the supporting mechanism includes a fixed seat, a pressure plate and a driving member. The fixed seat is provided with a V-shaped groove for placing the tool, and the driving member is arranged on one side of the fixed seat. The output end of the driving member is connected to the pressure plate, and the driving member drives the pressure plate to swing up and down to loosen or fix the drill shank of the drill bit.

[0008] Preferably, a left and right opposing limit clamp and a blade grinding clamp are also provided on the support mechanism located at the blade grinding station, an elastic buffer is fixedly installed on the top of the blade grinding clamp close to the side of the limit clamp, a V-shaped groove is provided on the top of the limit clamp close to the side of the blade grinding clamp, the opening of the V-shaped groove faces the elastic buffer, the elastic buffer and the V-shaped groove cooperate with each other to achieve clamping and limiting of the drill needle of the drill bit.

[0009] Preferably, the elastic buffer is a rubber buffer, and a surface of the elastic buffer is a vertical plane.

[0010] Preferably, the blade grinding mechanism includes two mechanical axes arranged on the machine platform, each mechanical axis is provided with a motor, and the output ends of the two mechanical axes are respectively connected to a rough grinding wheel and a fine grinding wheel, and the rough grinding wheel and the fine grinding wheel are respectively used for rough grinding and fine grinding of the tip angle of the tool clamped by the corresponding clamping mechanism, thereby forming a tip blade.

[0011] Preferably, the grooving mechanism comprises a grooving electric spindle arranged on the machine platform, the output end of the grooving electric spindle is connected to a grooving grinding wheel, and the grooving grinding wheel is used to form a spiral groove on the circumference of a tool clamped by its corresponding clamping mechanism.

[0012] Preferably, the edge cleaning mechanism includes an edge cleaning electric spindle arranged on the machine table, the output end of the edge cleaning electric spindle is connected to the edge cleaning grinding wheel, the edge cleaning electric spindle drives the edge cleaning grinding wheel to rotate, and drives the edge cleaning grinding wheel to move along the axial and radial directions of the tool on the edge cleaning station, and then grinds the peripheral side of the tool to form an escape surface.

[0013] The present invention has the following beneficial effects: The tool processing method of the present invention with a cutting edge first and a groove second is to perform processing in a clockwise direction in the order of grinding the tip cutting edge, cutting the spiral groove and opening the escape surface, so that when grinding the tip cutting edge, the tool is in the original unprocessed round rod shape, so that the axial rotation accuracy and stability of the tool are higher, thereby ensuring the processing accuracy of the tip cutting edge, and then the spiral groove cutting and escape surface opening steps are performed on the circumference of the tool, thereby avoiding the problem of damage to the edge of the spiral groove when grinding the tip cutting edge in the traditional processing method of groove first and a cutting edge second, thereby improving the overall processing accuracy of the tool, ensuring the quality of the tool, and improving the pass rate of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a top view of the tool processing device according to the embodiment of the present invention.

[0015] Figure 2 It is a schematic diagram of a tool processing device according to an embodiment of the present invention at an angle.

[0016] Figure 3 It is a schematic diagram of the tool processing device of an embodiment of the present invention at another angle.

[0017] Figure 4 It is a structural schematic diagram of the blade grinding mechanism of an embodiment of the present invention.

[0018] Figure 5 It is a schematic diagram of the support mechanism of an embodiment of the present invention at an angle.

[0019] Figure 6 It is a schematic diagram of the support mechanism of an embodiment of the present invention at another angle.

[0020] Figure 7 Schematic diagram of the appearance of a tool to be processed according to an embodiment of the present invention.

[0021] Figure 8 It is a schematic structural diagram of a drill needle of a drill bit after processing according to an embodiment of the present invention.

[0022] The accompanying drawings are marked with: 1. loading and unloading mechanism, 11. conveying mechanism, 12. material tray, 13. clamping mechanism, 2. blade grinding mechanism, 21. mechanical axis, 22. motor, 23. rough grinding wheel, 24. fine grinding wheel, 3. grooving mechanism, 31. grooving electric spindle, 32. grooving grinding wheel, 4. edge cleaning mechanism, 41. edge cleaning electric spindle, 42. edge cleaning grinding wheel, 5. supporting mechanism, 51. fixed seat, 511. V-shaped groove, 52. pressure plate, 53. driving part, 54. limiting splint, 541. V-shaped groove, 55. blade grinding splint, 551. elastic buffer, 6. machine table, 7. rotating table, 8. driving mechanism, 9. clamping mechanism, 10. drill bit, 101. drill shank, 102. drill needle, 103. tip blade, 104. spiral groove, 105. escape surface. DETAILED DESCRIPTION

[0023] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0024] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figure 1-8 As shown, as an embodiment of the present invention, a tool processing method with a first edge and a second groove is provided, comprising the following steps: S1, the clamping mechanism 13 clamps the tool to be processed in the material tray 12 and inserts it into the clamping mechanism 9 at the loading and unloading station; S2, the rotating table 7 rotates 90° clockwise, thereby driving the clamping mechanism 9 and the tool at the loading and unloading station to rotate to the blade grinding station, and then the tip angle of the tool is ground by the blade grinding mechanism 2 to form the tip edge 103; S3, the rotating table 7 rotates 90° clockwise, thereby driving the clamping mechanism 9 and the tool at the blade grinding station to rotate to the groove cutting station, and then the groove cutting mechanism 3 is used to grind the tip angle of the tool to form the tip edge 103. The circumference of the tool is processed to form a spiral groove 104; S4, the rotary table 7 rotates 90° clockwise, and then drives the clamping mechanism 9 and the tool at the groove cutting station to rotate to the edge cleaning station, and then the edge cleaning mechanism 4 grinds the circumference of the tool to form an escape surface 105; S5, the rotary table 7 rotates 90° clockwise, and then drives the clamping mechanism 9 and the tool at the edge cleaning station to rotate to the loading and unloading station, and then the clamping mechanism 13 clamps the processed tool and places it in the material tray 12, thereby completing the tool processing process. Among them, the four clamping mechanisms 9 perform the processing work of the corresponding process at the same time, thereby improving the processing efficiency.

[0027] The cutting tool processing method of the present invention is to cut the groove in the clockwise direction (clockwise direction is Figure 1 The top view in the figure is used as a reference datum) and the processing is carried out in the order of grinding the tip edge 103, cutting the spiral groove 104 and opening the escape surface 105. When grinding the tip edge 103, the tool is in the original unprocessed round rod shape, so that the axial rotation accuracy and stability of the tool are higher, thereby ensuring the processing accuracy of the tip edge 103. Then, the spiral groove 104 and the escape surface 105 are processed on the circumferential side of the tool, thereby avoiding the problem of damage to the edge of the spiral groove 104 caused by the traditional processing method of groove first and blade later during the grinding of the tip edge 103, thereby improving the overall processing accuracy of the tool, ensuring the quality of the tool, and improving the qualified rate of the tool.

[0028] The present invention also provides a tool processing device for realizing the tool processing method of cutting edge first and groove later as described in the above-mentioned embodiment, the tool processing device comprises a machine table 6, on which a loading and unloading station, a blade grinding station, a groove cutting station and an edge cleaning station are arranged in sequence in a clockwise direction, and a loading and unloading mechanism 1, a blade grinding mechanism 2, a groove cutting mechanism 3 and an edge cleaning mechanism 4 are installed at the loading and unloading station, the blade grinding station, the groove cutting station and the edge cleaning station, respectively, a rotating table 7 is arranged in the middle of the machine table 6, and the rotating table 7 is connected to a driving mechanism 8 for driving the rotating table 7 to lift and rotate, and a peripheral side of the rotating table 7 is arranged There are 4 clamping mechanisms 9, and the angle between two adjacent clamping mechanisms 9 is 90°. The four clamping mechanisms 9 correspond to the loading and unloading mechanism 1, the blade grinding mechanism 2, the grooving mechanism 3, and the edge cleaning mechanism 4 respectively. The loading and unloading mechanism 1 includes a conveying mechanism 11, a material tray 12 arranged on the conveying mechanism 11, and a clamping mechanism 13 installed at one end of the conveying mechanism 11. The clamping mechanism 13 is specifically a robotic arm. The clamping mechanism 13 is used to clamp the tool to be processed in the material tray 12 and insert it into the clamping mechanism 9 at the loading and unloading station and / or clamp the processed tool and place it in the material tray 12.

[0029] In this embodiment, the loading and unloading stations, the blade grinding station, the groove cutting station, and the edge cleaning station are respectively provided with support mechanisms 5 for supporting the tool.

[0030] In this embodiment, the tool is a drill bit 10, which includes a coaxially arranged drill shank 101 and a drill needle 102. The support mechanism 5 includes a fixed seat 51, a pressure plate 52 and a driving member 53. The driving member 53 is specifically a cylinder. The fixed seat 51 is provided with a V-shaped groove 511 for placing the tool. The driving member 53 is arranged on one side of the fixed seat 51. The output end of the driving member 53 is connected to the pressure plate 52. The driving member 53 drives the pressure plate 52 to swing up and down to loosen or fix the drill shank 101 of the drill bit 10.

[0031] In this embodiment, the support mechanism 5 at the blade grinding station is further provided with a left-right opposite limit clamp 54 and a blade grinding clamp 55, and an elastic buffer 551 is fixedly installed on the top of the blade grinding clamp 55 near the limit clamp 54, and a V-shaped groove 541 is provided on the top of the limit clamp 54 near the blade grinding clamp 55, and the opening of the V-shaped groove 541 faces the elastic buffer 551, and the elastic buffer 551 cooperates with the V-shaped groove 541 to clamp and limit the drill needle 102 of the drill bit 10. Specifically, the elastic buffer 551 is a rubber buffer, and its surface is a vertical plane. Since the existing all-metal blade grinding clamp 55 has a relatively high rigidity and hardness, the blade grinding clamp 55 is easy to damage the drill bit 10 when the drill bit 10 rotates. Therefore, the present invention provides a rubber buffer on the blade grinding clamp 55, which can have a good shock-absorbing and buffering effect on the drill needle 102, reduce the degree of wear on the drill needle 102, and ensure the processing accuracy of the drill needle 102. In addition, the limit clamp 54 and the blade grinding clamp 55 are both installed on the support seat in an adjustable height, so as to facilitate the height adjustment of the drill needle 102 according to different drill bits 10.

[0032] In this embodiment, the blade grinding mechanism 2 includes two mechanical axes 21 arranged on the machine table 6, each mechanical axis 21 is provided with a motor 22, and the output ends of the two mechanical axes 21 are respectively connected to a rough grinding wheel 23 and a fine grinding wheel 24, and the rough grinding wheel 23 and the fine grinding wheel 24 are respectively used to perform rough grinding and fine grinding on the tip angle of the tool clamped by the corresponding clamping mechanism 9, thereby forming a tip blade 103; specifically, during processing, the mechanical axis 21 drives the rough grinding wheel 23 to rotate, and drives the rough grinding wheel 23 to move along the axial direction of the tool clamped by the clamping mechanism 9, rough grinding the tip angle on the tool, and then fine grinding the tip angle on the tool through the fine grinding wheel 24, thereby forming a sharp tip blade 103.

[0033] In this embodiment, the grooving mechanism 3 includes a grooving electric spindle 31 arranged on the machine table 6, and the output end of the grooving electric spindle 31 is connected to the grooving grinding wheel 32. The grooving grinding wheel 32 is used to process and form a spiral groove 104 on the circumferential side of the tool clamped by its corresponding clamping mechanism 9 to ensure smooth chip removal of the drill bit 102 during the drilling process.

[0034] In this embodiment, the edge cleaning mechanism 4 includes an edge cleaning electric spindle 41 arranged on the machine table 6. The output end of the edge cleaning electric spindle 41 is connected to the edge cleaning grinding wheel 42. The edge cleaning electric spindle 41 drives the edge cleaning grinding wheel 42 to rotate, and drives the edge cleaning grinding wheel 42 to move along the axial and radial directions of the tool on the edge cleaning station, thereby grinding the peripheral side of the tool to form a sharp escape surface 105.

[0035] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes in form and details made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims will fall within the scope of protection of the present invention.

Claims

1. A cutting tool processing method with an edge first and a groove later, characterized in that: The following steps are involved: S1. The clamping mechanism clamps the tool to be processed in the material tray and inserts it into the clamping mechanism at the loading and unloading station; S2. The rotary table rotates 90° clockwise, thereby driving the clamping mechanism and the tool at the loading and unloading station to rotate to the blade grinding station, and then the tip angle of the tool is ground by the blade grinding mechanism to form a tip edge; S3. The rotary table rotates 90° clockwise, thereby driving the clamping mechanism and the tool at the blade grinding station to rotate to the grooving station, and then the grooving mechanism is used to form a spiral groove on the circumference of the tool; S4. The rotary table rotates 90° clockwise, thereby driving the clamping mechanism and the tool at the grooving station to rotate to the edge cleaning station, and then the edge cleaning mechanism is used to grind the circumference of the tool to form an escape surface; S5. The rotary table rotates 90° clockwise, thereby driving the clamping mechanism and the tool at the edge cleaning station to rotate to the loading and unloading station, and then the clamping mechanism is used to clamp the processed tool and place it in the material tray.

2. A tool processing device, characterized in that: A tool processing method for realizing the blade-first-groove-later method described in claim 1, wherein the tool processing device comprises a machine platform, on which loading and unloading stations, a blade grinding station, a groove cutting station, and an edge cleaning station are arranged in sequence in a clockwise direction, and loading and unloading mechanisms, a blade grinding mechanism, a groove cutting mechanism, and an edge cleaning mechanism are installed correspondingly at the loading and unloading stations, the blade grinding station, the groove cutting station, and the edge cleaning station, respectively. A rotating table is provided in the middle of the machine platform, and the rotating table is connected to a driving mechanism for driving the rotating table to lift and rotate. Four clamping mechanisms are arranged on the circumference of the rotating table, and the angle between two adjacent clamping mechanisms is 90°. The four clamping mechanisms correspond to the loading and unloading mechanisms, the blade grinding mechanism, the groove cutting mechanism, and the edge cleaning mechanism, respectively. The loading and unloading mechanisms comprise a conveying mechanism, a material tray arranged on the conveying mechanism, and a clamping mechanism installed at one end of the conveying mechanism, and the clamping mechanism is used to clamp the tool to be processed in the material tray and insert it into the clamping mechanism at the loading and unloading stations and / or to clamp the processed tool and place it in the material tray.

3. The tool processing device according to claim 2, characterized in that: The loading and unloading stations, the blade grinding station, the groove cutting station and the edge cleaning station are also respectively provided with supporting mechanisms for supporting the tool.

4. The tool processing device according to claim 3, characterized in that: The tool is a drill bit, which includes a coaxially arranged drill shank and a drill needle. The supporting mechanism includes a fixed seat, a pressure plate and a driving member. The fixed seat is provided with a V-shaped groove for placing the tool. The driving member is arranged on one side of the fixed seat. The output end of the driving member is connected to the pressure plate. The driving member drives the pressure plate to swing up and down to loosen or fix the drill shank of the drill bit.

5. The tool processing device according to claim 4, characterized in that: The support mechanism located at the blade grinding station is also provided with a limit clamp and a blade grinding clamp opposite to each other on the left and right. An elastic buffer is fixedly installed on the top of the blade grinding clamp close to the side of the limit clamp. A V-shaped groove is provided on the top of the limit clamp close to the side of the blade grinding clamp. The opening of the V-shaped groove faces the elastic buffer. The elastic buffer and the V-shaped groove cooperate with each other to achieve clamping and limiting of the drill needle of the drill bit.

6. The tool processing device according to claim 5, characterized in that: The elastic buffer is a rubber buffer, and its surface is a vertical plane.

7. The tool processing device according to claim 2, characterized in that: The blade grinding mechanism includes two mechanical axes arranged on the machine platform, each of which is provided with a motor, and the output ends of the two mechanical axes are respectively connected to a coarse grinding wheel and a fine grinding wheel. The coarse grinding wheel and the fine grinding wheel are respectively used to coarsely grind and finely grind the tip angle of the tool clamped by the corresponding clamping mechanism, thereby forming a tip blade.

8. The tool processing device according to claim 2, characterized in that: The groove cutting mechanism comprises a groove cutting electric spindle arranged on the machine platform, the output end of the groove cutting electric spindle is connected to the groove cutting grinding wheel, and the groove cutting grinding wheel is used for processing and forming spiral grooves on the peripheral side of the tool clamped by its corresponding clamping mechanism.

9. The tool processing device according to claim 2, characterized in that: The edge cleaning mechanism includes an edge cleaning electric spindle arranged on the machine table. The output end of the edge cleaning electric spindle is connected to the edge cleaning grinding wheel. The edge cleaning electric spindle drives the edge cleaning grinding wheel to rotate and drives the edge cleaning grinding wheel to move along the axial and radial directions of the tool on the edge cleaning station, thereby grinding the circumferential side of the tool to form an escape surface.

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