Cutter handle self-repairing method of five-axis tool sharpener

Abstract

The invention discloses a knife handle self-repairing method of a five-axis knife grinder, which relates to the technical field of knife grinders, and comprises the following steps: step 1, confirming a repairing scheme, and measuring a radial run-out value of an inner taper hole of a knife handle of a first axis; secondly, a grinding wheel is installed on the second shaft, and a finishing tool is installed on the first shaft; thirdly, the relative position between the central axis of the first shaft and the central axis of the second shaft is adjusted, the dressing tool abuts against the peripheral wall of the grinding wheel, then the second shaft rotates and moves along the rotating axis of the second shaft, and the radial peripheral wall of the grinding wheel is dressed through the dressing tool; and fourthly, the dressing tool is detached, the outer circumferential wall of the grinding wheel abuts against the inner circumferential wall of the inner taper hole, the first shaft and the second shaft rotate, and the inner circumferential wall of the inner taper hole is dressed through the grinding wheel. The self-repairing process is achieved through the self-positioning precision of the five-axis tool sharpener, it is not needed to wait for accessory replacement or return to a factory for detection and repairing, the maintenance period of the tool holder can be shortened, the maintenance cost is reduced, and the adverse effect on the production schedule due to equipment faults is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of knife sharpeners, and in particular to a knife handle self-repairing method for a five-axis knife sharpener. Background Art

[0002] In the related art, the five-axis tool sharpener will cause the tool handle to wear out after long-term use, or the inner taper hole of the tool handle will be damaged due to collision or impact caused by abnormal operation, which will affect the installation accuracy of the tool handle and reduce the processing accuracy of the equipment. At present, when the inner taper hole of the tool handle is damaged, the worn or deformed tool handle is usually disassembled and replaced, or returned to the factory for inspection and repair. The maintenance cycle is long and the maintenance cost is high. In addition, the equipment needs to be shut down for a long time for repair, which affects the production progress of the product and brings great inconvenience to the enterprise. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a self-repairing method for a tool handle of a five-axis tool grinder, which can be repaired by the tool grinder itself, shorten the maintenance cycle, reduce the maintenance cost, and reduce the adverse impact on the production progress.

[0004] A tool handle self-repairing method for a five-axis tool grinder according to an embodiment of the present invention comprises: Step 1: Confirm the repair plan and measure the radial runout value of the inner tapered hole of the tool holder of the first axis. When the radial runout is between 0.002mm and 0.02mm, adopt the fine repair plan. When the radial runout is greater than 0.02mm, adopt the method of rough grinding followed by fine grinding for repair. Step 2: Install the grinding wheel on the second axis and tighten it, and install the dressing tool on the first axis; Step 3, adjusting the relative position between the central axis of the first shaft and the central axis of the second shaft so that the dressing tool contacts the outer peripheral wall of the grinding wheel, and then rotating the second shaft and moving along its rotation axis to dress the radial outer peripheral wall of the grinding wheel by the dressing tool; Step 4: disassemble the dressing tool, adjust the relative position between the central axis of the first shaft and the central axis of the second shaft, make the outer peripheral wall of the grinding wheel contact the inner peripheral wall of the inner tapered hole, rotate the first shaft and the second shaft, and use the grinding wheel to dress the inner peripheral wall of the inner tapered hole; Step five: check the radial runout value of the inner tapered hole.

[0005] A tool handle self-repair method for a five-axis tool sharpener according to an embodiment of the present invention has at least the following beneficial effects: In this embodiment, the dressing tool is brought into contact with the outer peripheral wall of the grinding wheel, and the second shaft is rotated and moved along its rotation axis, so that the dressing tool dresses the grinding wheel on the second shaft, and then the inner tapered hole of the first shaft is repaired by grinding with the grinding wheel. The self-repair process is achieved by relying on the positioning accuracy of the five-axis grinder itself. There is no need to wait for parts to be replaced or returned to the factory for inspection and repair. The maintenance cycle of the tool holder can be shortened, the maintenance cost can be reduced, and the adverse impact of equipment failure on the production progress can be reduced.

[0006] According to some embodiments of the present invention, a grinding rod is provided on the second shaft, and a grinding wheel is provided at the end of the grinding rod.

[0007] According to some embodiments of the present invention, in step one, when measuring the radial runout value of the inner tapered hole, values ​​of three circles are taken at equal intervals along the axial direction of the tool holder at least on the inner wall of the inner tapered hole, which are the first circle, the second circle and the third circle.

[0008] According to some embodiments of the present invention, in step one, when measuring the radial runout value of the inner tapered hole, a distance between the first circle and the second circle is 5 mm, and a distance between the second circle and the third circle is 5 mm on the inner wall of the inner tapered hole along the axial direction of the tool holder.

[0009] According to some embodiments of the present invention, the grinding wheel is cylindrical, and in step four, the axial direction of the grinding wheel is inclined to the axial direction of the tool handle.

[0010] According to some embodiments of the present invention, the radial outer periphery of the grinding wheel has a conical surface, and in step four, the axial direction of the grinding wheel is parallel to the axial direction of the tool handle.

[0011] According to some embodiments of the present invention, the grinding wheel is cylindrical, and the maximum outer diameter of the grinding wheel is smaller than the minimum inner diameter of the inner tapered hole.

[0012] According to some embodiments of the present invention, the radial outer periphery of the grinding wheel has a conical surface, and in step four, the outer peripheral wall of the grinding wheel can match the inner peripheral wall of the inner tapered hole.

[0013] According to some embodiments of the present invention, an extension rod and a grinding rod are provided on the second shaft, the grinding rod is fixed to the second shaft, the extension rod is located at the end of the grinding rod away from the second shaft, and the grinding wheel is installed at the end of the extension rod.

[0014] According to some embodiments of the present invention, the axial length of the grinding wheel is greater than the depth of the inner tapered hole along the axis direction of the tool handle.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 A diagram showing the steps of a self-repairing method for a tool handle of a five-axis tool grinder according to an embodiment of the present invention; Figure 2 is a cross-sectional view of a dressing grinding wheel in an embodiment of the present invention; Figure 3 It is a cross-sectional view of a grinding wheel grinding an inner tapered hole in an embodiment of the present invention; Figure 4 A cross-sectional view of measuring the radial runout of an inner tapered hole in an embodiment of the present invention; Figure 5 It is a cross-sectional view of the first situation of grinding an inner tapered hole when the grinding wheel has a tapered surface in an embodiment of the present invention; Figure 6 It is a cross-sectional view of the second situation of grinding the inner tapered hole when the grinding wheel has a tapered surface in an embodiment of the present invention.

[0017] Reference numerals: First axis 100; tool handle 101; inner tapered hole 102; mounting channel 103; trimming tool 104; tool handle 105; first circle 106; second circle 107; third circle 108; The second shaft 110 ; the grinding wheel 111 ; the grinding rod 112 ; the conical surface 113 ; the extension rod 114 ; and the matching hole 115 . DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying 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 operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0021] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0022] In the related art, the five-axis tool sharpener will cause the tool handle to wear out after long-term use, or the inner taper hole of the tool handle will be damaged due to collision or impact caused by abnormal operation, which will affect the installation accuracy of the tool handle and reduce the processing accuracy of the equipment. At present, when the inner taper hole of the tool handle is damaged, the worn or deformed tool handle is usually disassembled and replaced, or returned to the factory for inspection and repair. The maintenance cycle is long and the maintenance cost is high. In addition, the equipment needs to be shut down for a long time for repair, which affects the production progress of the product and brings great inconvenience to the enterprise.

[0023] To solve the above problems, refer to Figure 1 In an embodiment of the present invention, a tool holder self-repair method for a five-axis tool grinder includes the steps of: confirming a repair scheme, measuring the radial runout value of the inner tapered hole 102 of the tool holder 101 of the first axis 100, adopting a fine repair scheme when the radial runout is between 0.002 mm and 0.02 mm, and adopting a rough grinding followed by fine grinding to repair when the radial runout is greater than 0.02 mm; Step 2: install the grinding wheel 111 on the second shaft 110 and tighten it, and install the dressing tool 104 on the first shaft 100; Step 3: Adjust the relative position between the central axis of the first shaft 100 and the central axis of the second shaft 110 so that the dressing tool 104 contacts the outer peripheral wall of the grinding wheel 111, and then rotate the second shaft 110 and move along its rotation axis to dress the radial outer peripheral wall of the grinding wheel 111 through the dressing tool 104; Step 4: disassemble the dressing tool 104, adjust the relative position between the central axis of the first shaft 100 and the central axis of the second shaft 110, make the outer peripheral wall of the grinding wheel 111 contact the inner peripheral wall of the inner tapered hole 102, rotate the first shaft 100 and the second shaft 110, and use the grinding wheel 111 to dress the inner peripheral wall of the inner tapered hole 102; Step five: detecting the radial runout value of the inner tapered hole 102 .

[0024] It is understandable that the causes of damage to the handle 101 are generally divided into two types. One is wear and tear caused by normal use, which is usually minor and can be repaired; the other is collision or impact caused by abnormal operation, which is often more serious and requires further confirmation of whether it is possible to repair. Therefore, before step 1, it is necessary to confirm the cause of the damage to the handle 101. If it is wear and tear caused by normal use, the above repair steps can be performed; if the handle 101 has experienced a serious impact and has a large deformation or damage, it is necessary to replace the accessories; if the damage to the handle 101 is minor, the repair steps can be performed.

[0025] Specifically, refer to Figure 4 In step 1, when measuring the radial runout value of the inner tapered hole 102, along the axial direction of the tool handle 101, at least three circles are equally spaced on the inner wall of the inner tapered hole 102, namely the first circle 106, the second circle 107 and the third circle 108. Further, the first circle 106, the second circle 107 and the third circle 108 are equally spaced, the spacing between the first circle 106 and the second circle 107 is 5 mm, the spacing between the second circle 107 and the third circle 108 is 5 mm, and the distance between the first circle 106 and the outer end wall of the tool handle 101 and the distance between the third circle 108 and the end of the inner tapered hole 102 are the same, which can reasonably reflect the damage of the hole wall of the inner tapered hole 102.

[0026] It is understandable that during the test, the radial runout values ​​of the first circle 106, the second circle 107 and the third circle 108 are measured and recorded respectively by the micrometer against the inner circumferential wall of the inner tapered hole 102, and the maximum value is taken to determine the repair scheme. When the radial runout is between 0.002mm and 0.02mm, a fine repair scheme is adopted, that is, a high-mesh grinding wheel 111 is used to fine-grind the inner tapered hole 102. In this embodiment, a grinding wheel 111 with a mesh number between 150 and 200 is used for fine grinding; when the radial runout is greater than 0.02mm, a rough grinding and then fine grinding method is used for repair, that is, a low-mesh grinding wheel 111 is used for rough grinding first, and then a high-mesh grinding wheel 111 is used for fine grinding. In this embodiment, a grinding wheel 111 with a mesh number between 80 and 120 is used for rough grinding, and a grinding wheel 111 with a mesh number between 150 and 200 is used for fine grinding.

[0027] Reference Figure 2It is understood that a grinding rod 112 is provided on the second shaft 110, and a grinding wheel 111 is installed at the end of the grinding rod 112. In other embodiments, an extension rod 114 is also provided on the second shaft 110, the grinding rod 112 is fixed to the second shaft 110, the extension rod 114 is located at the end of the grinding rod 112 away from the second shaft 110, and the grinding wheel 111 is installed at the end of the extension rod 114. It is understood that a matching hole 115 is provided on the extension rod 114, the grinding rod 112 is inserted into the matching hole 115, and the positioning installation of the extension rod 114 and the grinding rod 112 is achieved through transitional fit, so that the extension rod 114 and the grinding rod 112 have good precision fit, so that when installing or replacing, the grinding wheel 111 can be replaced by directly disassembling the extension rod 114, ensuring that the good installation precision can be achieved before and after disassembly.

[0028] It is understandable that a trimming tool 104 is mounted on the tool handle 101 of the first shaft 100, and the first shaft 100 further includes a tool handle 105, the trimming tool 104 is mounted and fixed on the tool handle 105, and the tool handle 105 is inserted and installed in the inner tapered hole 102. At the same time, the tool handle 101 is provided with a mounting channel 103, and the end of the tool handle 105 away from the trimming tool 104 is inserted in the mounting channel 103, and the mounting channel 103 is connected to the inner tapered hole 102. It is understandable that the outer peripheral wall of the tool handle 105 has a tapered surface that can cooperate with the inner tapered hole 102, and the center positioning of the trimming tool 104 on the tool handle 101 can be achieved.

[0029] Reference Figure 2It can be understood that in step 3, the relative position between the central axis of the first shaft 100 and the central axis of the second shaft 110 is adjusted so that the dressing tool 104 contacts the outer peripheral wall of the grinding wheel 111, and then the second shaft 110 is rotated and moved along its rotation axis, and the radial outer peripheral wall of the grinding wheel 111 is dressed by the dressing tool 104. In this embodiment, by moving the first shaft 100 so that its central axis is perpendicular to the central axis of the second shaft 110, and then making the dressing tool 104 contact the outer peripheral wall of the grinding wheel 111, and then making the second shaft 110 rotate while the first shaft 100 does not rotate, the dressing tool 104 cuts the outer peripheral wall of the grinding wheel 111, and the dressing of the grinding wheel 111 is achieved, thereby ensuring that the outer peripheral wall of the grinding wheel 111 has good shape and position accuracy. It is understandable that in this step, since the handle 101 has not been repaired, the first shaft 100 does not rotate, and the installation error of the dressing tool 104 will not be transmitted to the grinding wheel 111. In the process of dressing the grinding wheel 111, the accuracy of the outer peripheral wall of the grinding wheel 111 is determined only by the relative positioning accuracy of the first shaft 100 and the second shaft 110, thereby ensuring that the dressed grinding wheel 111 has good behavior accuracy. In other embodiments, the first shaft 100 is moved so that its central axis and the central axis of the second shaft 110 form an angle that is not equal to 90° or not equal to 180°, and the dressing tool 104 is made to contact the outer peripheral wall of the grinding wheel 111, so as to achieve the dressing of the outer peripheral wall of the grinding wheel 111.

[0030] It can be understood that when the radial run-out of the inner tapered hole 102 measured in step one is between 0.002mm and 0.02mm, the fine grinding wheel 111 with a mesh number between 150 and 200 is first trimmed, and then the grinding wheel 111 is used to fine-grind the inner tapered hole 102; when the radial run-out in step one is greater than 0.02mm, the dressing tool 104 is first used to trim the rough grinding wheel 111 with a mesh number between 80 and 120, and then the trimmed rough grinding wheel 111 is disassembled, and then the fine grinding wheel 111 with a mesh number between 150 and 200 is installed on the second shaft 110 and trimmed, and then the trimmed fine grinding wheel 111 is disassembled, and the trimmed rough grinding wheel 111 is installed on the second shaft 110 to rough-grind the inner tapered hole 102; after the rough grinding is completed, the trimmed fine grinding wheel 111 is installed on the second shaft 110 to fine-grind the inner tapered hole 102.

[0031] Reference Figure 3It can be understood that in step 4, the tool handle 105 and the dressing tool 104 are disassembled, and then the relative position between the central axis of the first shaft 100 and the central axis of the second shaft 110 is adjusted, so that the outer peripheral wall of the grinding wheel 111 contacts the inner peripheral wall of the inner tapered hole 102, and the first shaft 100 and the second shaft 110 are rotated, and the inner peripheral wall of the inner tapered hole 102 is trimmed by the grinding wheel 111. In this embodiment, the grinding wheel 111 is cylindrical, and the maximum outer diameter of the grinding wheel 111 is smaller than the minimum inner diameter of the inner tapered hole 102. By moving the first shaft 100 and making its central axis and the central axis of the second shaft 110 form an angle, and the angle is equal to the angle of the cone angle of the inner tapered hole 102, so that the outer peripheral wall of the grinding wheel 111 contacts the inner peripheral wall of the inner tapered hole 102, the first shaft 100 and the second shaft 110 rotate simultaneously to achieve the grinding process of the inner tapered hole 102. Furthermore, the axial length of the grinding wheel 111 is greater than the depth of the inner tapered hole 102 along the axial direction of the tool handle 101, so that when the grinding wheel 111 rotates, the first shaft 100 rotates one circle, and the inner peripheral wall of the inner tapered hole 102 can be polished, which is beneficial to improving the polishing efficiency. It can be understood that during polishing, the first shaft 100 and the second shaft 110 rotate in the same direction and there is a large speed difference between the grinding wheel 111 and the tool handle 101, or the first shaft 100 and the second shaft 110 rotate in opposite directions at the same time, so that the inner tapered hole 102 can be polished.

[0032] Reference Figure 5 In other embodiments, the radial periphery of the grinding wheel 111 has a conical surface 113, and the maximum outer diameter of the grinding wheel 111 is smaller than the minimum inner diameter of the inner tapered hole 102. In step 4, the axial direction of the grinding wheel 111 is parallel to the axial direction of the tool handle 101. It can be understood that the taper of the conical surface 113 on the outer periphery of the grinding wheel 111 is equal to the taper of the inner tapered hole 102, so when the axial direction of the grinding wheel 111 is parallel to the axial direction of the tool handle 101, the outer peripheral wall of the grinding wheel 111 can completely contact the inner peripheral wall of the inner tapered hole 102. Further, the axial length of the grinding wheel 111 is greater than the depth of the inner tapered hole 102 along the axial direction of the tool handle 101, so that when the grinding wheel 111 rotates, the first shaft 100 rotates one circle, that is, the inner peripheral wall of the inner tapered hole 102 can be polished, which is conducive to improving the polishing efficiency. It is understandable that during grinding, the first shaft 100 and the second shaft 110 rotate in the same direction and there is a large speed difference between the grinding wheel 111 and the tool handle 101, or the first shaft 100 and the second shaft 110 rotate in opposite directions at the same time, so that the inner tapered hole 102 can be ground.

[0033] Reference Figure 6In other embodiments, the radial periphery of the grinding wheel 111 has a conical surface 113, and the maximum outer diameter of the grinding wheel 111 is larger than the maximum inner diameter of the inner tapered hole 102. In step 4, the outer peripheral wall of the grinding wheel 111 can match the inner peripheral wall of the inner tapered hole 102, so that the outer peripheral wall of the grinding wheel 111 can completely contact the inner peripheral wall of the inner tapered hole 102, and in step 4, the axial direction of the grinding wheel 111 is parallel to the axial direction of the tool handle 101, so that the grinding process of the inner tapered hole 102 can be achieved only by rotating the grinding wheel 111 and the first shaft 100 does not rotate, which is conducive to improving the grinding efficiency. Of course, the first shaft 100 and the second shaft 110 can both rotate in the same direction, and when the first shaft 100 and the second shaft 110 rotate in the same direction, there is a large speed difference between the tool handle 101 and the grinding wheel 111, or the first shaft 100 and the second shaft 110 rotate in opposite directions, which can effectively grind the inner tapered hole 102.

[0034] It is understood that a cylindrical grinding wheel 111 blank can be used to be trimmed by a trimming tool 104 to obtain a tapered surface 113 on the outer peripheral wall of the grinding wheel 111. In this processing process, when the second shaft rotates and moves along its axis, the first shaft moves along the radial direction of the second shaft, thereby cutting out the tapered surface 113. In other embodiments, a frustum-shaped grinding wheel 111 blank can be used to trim the outer peripheral wall by a trimming tool 104, and then the inner tapered hole 102 is ground. It is understood that the outer peripheral wall of the frustum-shaped grinding wheel 111 blank used is a tapered surface, and its taper is the same as the taper of the inner tapered hole 102.

[0035] It can be understood that in step 5, when measuring the radial runout value of the inner tapered hole 102, along the axial direction of the tool holder 101, at least three circles are taken at equal intervals on the inner wall of the inner tapered hole 102, and the distance between two adjacent circles is 5 mm (e.g. Figure 4 ), and take the maximum radial runout value. When the maximum radial runout value is less than 0.002mm, the radial runout value of the inner tapered hole 102 meets the precision requirement and the grinding is completed. It can be understood that when the radial runout is between 0.002mm and 0.02mm, it means that the inner tapered hole 102 still needs to be further polished using a finishing solution, that is, a high-mesh grinding wheel 111 is used to fine-grind the inner tapered hole 102. When the radial runout is greater than 0.02mm, it means that the inner tapered hole 102 still has a large dimensional error, and it is necessary to repair it by rough grinding first and then fine grinding, that is, first use a low-mesh grinding wheel 111 for rough grinding, and then use a high-mesh grinding wheel 111 for fine grinding. After the grinding steps are completed, measure the radial runout value of the inner tapered hole 102. When the maximum radial runout value is less than 0.002mm, it means that the grinding is completed, otherwise it is necessary to further determine the further grinding solution based on the maximum radial runout value.

[0036] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A self-repairing method for a tool handle of a five-axis tool grinder, characterized in that: include: Step 1: confirm the repair plan, measure the radial runout value of the inner tapered hole of the tool holder of the first axis, and adopt the fine repair plan when the radial runout value is between 0.002mm and 0.02mm; and adopt the method of rough grinding followed by fine grinding for repair when the radial runout value is greater than 0.02mm; Step 2: installing a grinding wheel on the second shaft and fastening it, and installing a dressing tool on the first shaft; Step 3, adjusting the relative position between the central axis of the first shaft and the central axis of the second shaft so that the dressing tool contacts the outer peripheral wall of the grinding wheel, and then rotating the second shaft and moving along its rotation axis to dress the radial outer peripheral wall of the grinding wheel by the dressing tool; Step 4, disassembling the dressing tool, adjusting the relative position between the central axis of the first shaft and the central axis of the second shaft, so that the outer peripheral wall of the grinding wheel contacts the inner peripheral wall of the inner tapered hole, rotating the first shaft and the second shaft, and dressing the inner peripheral wall of the inner tapered hole by the grinding wheel; Step five: detecting the radial runout value of the inner tapered hole.

2. The tool handle self-repair method of a five-axis tool grinder according to claim 1, characterized in that: A grinding rod is arranged on the second shaft, and the grinding wheel is arranged at the end of the grinding rod.

3. The tool handle self-repair method of a five-axis tool grinder according to claim 1, characterized in that: In step one, when measuring the radial runout value of the inner tapered hole, along the axial direction of the tool handle, at least three circles with equal spacing are taken on the inner wall of the inner tapered hole, namely the first circle, the second circle and the third circle.

4. The self-repairing method for a tool handle of a five-axis tool grinder according to claim 3, characterized in that: In the step one, when measuring the radial runout value of the inner tapered hole, a distance between the first circle and the second circle is 5 mm, and a distance between the second circle and the third circle is 5 mm on the inner wall of the inner tapered hole along the axial direction of the tool holder.

5. The tool handle self-repairing method of a five-axis tool sharpener according to claim 1, characterized in that: The grinding wheel is cylindrical, and in the step four, the axial direction of the grinding wheel is inclined to the axial direction of the tool handle.

6. The tool handle self-repairing method of a five-axis tool grinder according to claim 1, characterized in that: The radial outer periphery of the grinding wheel has a conical surface, and in the step four, the axial direction of the grinding wheel is parallel to the axial direction of the tool handle.

7. The tool handle self-repair method of a five-axis tool sharpener according to claim 1, characterized in that: The grinding wheel is cylindrical, and the maximum outer diameter of the grinding wheel is smaller than the minimum inner diameter of the inner tapered hole.

8. The self-repairing method for a tool handle of a five-axis tool grinder according to claim 1, characterized in that: The radial outer periphery of the grinding wheel has a conical surface, and in the step four, the outer peripheral wall of the grinding wheel can match the inner peripheral wall of the inner tapered hole.

9. The tool handle self-repairing method of a five-axis tool sharpener according to claim 1, characterized in that: The second shaft is provided with an extension rod and a grinding rod, the grinding rod is fixed to the second shaft, the extension rod is located at the end of the grinding rod away from the second shaft, and the grinding wheel is installed at the end of the extension rod.

10. The tool handle self-repair method of a five-axis tool grinder according to claim 1, characterized in that: The axial length of the grinding wheel is greater than the depth of the inner tapered hole along the axial direction of the tool handle.

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