Cutter mounting frame

Abstract

The utility model discloses a cutter mounting frame which comprises a base, a cutter handle mounting part is arranged on the base and used for mounting a cutter handle, the cutter handle is provided with a cutter mounting part, and the cutter mounting part is used for mounting a cutter; the adjusting part is arranged on the base and can move in the axis direction of the cutter; and the cutter mounting piece is directly or indirectly connected with the adjusting piece, the cutter mounting piece is provided with a cutter mounting face, the cutter mounting piece can reciprocate along a first preset path in the axis direction of the cutter, and when the cutter mounting piece moves to the tail end of the first preset path, the cutter mounting face abuts against the end face of the cutter or a preset gap is formed between the cutter mounting face and the end face of the cutter. Compared with the prior art, the adjusting piece and the cutter installing piece are arranged, the adjusting piece can adjust the installation height on the base, after the adjusting piece is fixed, the cutter installing piece is moved till the cutter installing piece reaches the tail end of the first preset path, whether the cutter installing face on the cutter installing piece abuts against the end face of the cutter or whether a preset gap exists between the cutter installing face and the end face of the cutter or not is determined; therefore, whether the extension length of the cutter meets requirements is determined.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool parts, in particular to a tool loading rack. Background Art

[0002] The on-site CNC manufacturing process requirements and precision have been increasing year by year. In the related technologies, the tool loading block of the tool loading rack is separated from the tool rack body, resulting in low tool loading precision and cumbersome operations. The traditional tool loading rack can no longer meet the on-site process requirements. Content of the Utility Model

[0003] The purpose of the utility model is to provide a tool loading rack to solve the technical problems in the prior art, and it can quickly and conveniently confirm whether the length of the tool extending out meets the requirements.

[0004] The utility model provides a tool loading rack, including:

[0005] A base, on which a tool holder mounting part is provided, the tool holder mounting part is used for mounting a tool holder, the tool holder has a tool mounting part, and the tool mounting part is used for mounting a tool;

[0006] An adjusting member, arranged on the base, and the adjusting member can move along the axial direction of the tool;

[0007] A tool loading member, directly or indirectly connected to the adjusting member, the tool loading member has a tool loading surface, and in the axial direction of the tool, the tool loading member can reciprocate along a first preset path. When the tool loading member moves to the end of the first preset path, the tool loading surface abuts against the end surface of the tool or has a preset gap.

[0008] As described above, in a tool loading rack, preferably, the tool loading rack further includes a positioning member, the positioning member is connected to the adjusting member, a positioning groove is formed through the positioning member, a positioning surface is formed on the inner surface of the positioning groove, a positioned surface is formed on the outer peripheral surface of the tool, the positioned surface extends along the axial direction and the radial direction of the tool. When the tool passes through the positioning groove, the positioning surface fits or remains parallel to the positioned surface.

[0009] As described above, in a tool loading rack, preferably, the positioning member is movably arranged on the adjusting member along a second preset path. When the positioning member is at the starting end of the second preset path, the positioning member is misaligned with the tool. When the positioning member is at the end of the second preset path, the tool extends into the positioning groove.

[0010] A tool loading rack as described above, wherein, preferably, the tool loading rack further includes a guiding member, the guiding member is directly or indirectly connected to the adjusting member, the guiding member extends along the axial direction of the tool, a guiding hole is provided on the tool loading member, and the guiding hole is in clearance fit with the guiding member to guide the tool loading member to move along the first preset path.

[0011] A tool loading rack as described above, wherein, preferably, one end of the guiding member away from the tool has a limiting surface, and one end of the tool loading member facing the tool has a surface to be limited. When the tool loading member moves to the end of the first preset path, the surface to be limited abuts against the limiting surface.

[0012] A tool loading rack as described above, wherein, preferably, the tool loading member includes a first block, a connecting block and a second block. The connecting block connects the first block and the second block respectively. The first block is closer to the tool than the second block. The guiding hole is provided through the first block. The tool loading surface is formed on one side of the first block close to the tool, and the surface to be limited is formed on one side of the second block close to the tool.

[0013] A tool loading rack as described above, wherein, preferably, a plurality of guiding holes are evenly distributed on the tool loading member, and each guiding hole is in clearance fit with a corresponding guiding member.

[0014] A tool loading rack as described above, wherein, preferably, the tool loading rack further includes an elastic member, the elastic member is connected to the tool loading member, so that the tool loading member can reciprocate elastically along the first preset path.

[0015] A tool loading rack as described above, wherein, preferably, the elastic member is a spring, the spring is sleeved on the guiding member, and when the tool loading member moves towards the direction close to the tool, the spring is compressed.

[0016] A tool loading rack as described above, wherein, preferably, the adjusting member is provided with a first mounting hole and a first locking member. The first mounting hole extends along the axial direction of the tool, and the first locking member cooperates with the first mounting hole to lock the adjusting member on the base or unlock the adjusting member.

[0017] Compared with the prior art, the utility model adjusts the installation height on the base through the setting of the adjusting part and the tool mounting part, so as to adapt to different tools, with a wider adaptability. After fixing the adjusting part, then move the tool mounting part until when the tool mounting surface on the tool mounting part reaches the end of the first preset path, confirm whether the tool mounting surface on the tool mounting part abuts against the end face of the tool or has a preset gap, so as to determine whether the protruding length of the tool meets the requirements. Brief Description of the Drawings

[0018] Figure 1 FIG. 6 is a perspective view of the overall structure of the tool mounting rack provided by the embodiment of the utility model;

[0019] Figure 2 FIG. 10 is a front view of the overall structure of the tool mounting rack provided by the embodiment of the utility model;

[0020] Figure 3 FIG. 14 is a rear view of the overall structure of the tool mounting rack provided by the embodiment of the utility model;

[0021] Figure 4 FIG. 18 is a perspective view of the base of the tool mounting rack provided by the embodiment of the utility model;

[0022] Figure 5 FIG. 22 is a perspective view of the adjusting part of the tool mounting rack provided by the embodiment of the utility model;

[0023] Figure 6 FIG. 26 is a perspective view of the tool mounting part of the tool mounting rack provided by the embodiment of the utility model;

[0024] Figure 7 FIG. 30 is a perspective view of the positioning part of the tool mounting rack provided by the embodiment of the utility model;

[0025] Figure 8 FIG. 34 is a perspective view of the guiding part of the tool mounting rack provided by the embodiment of the utility model;

[0026] Figure 9 FIG. 38 is a perspective view of the tool handle provided by the embodiment of the utility model;

[0027] Figure 10 FIG. 42 is a perspective view of the tool provided by the embodiment of the utility model;

[0028] Figure 11 FIG. 46 is a perspective view of the tool fixed on the tool mounting rack provided by the embodiment of the utility model;

[0029] Figure 12 FIG. 50 is a front view of the tool fixed on the tool mounting rack provided by the embodiment of the utility model.

[0030] Description of the Reference Numerals:

[0031] 10 - Base; 11 - Tool holder mounting part;

[0032] 20 - Tool holder, 21 - Tool mounting part;

[0033] 30 - Tool, 31 - Positioning surface;

[0034] 40 - Adjusting part, 41 - First mounting hole, 42 - First locking part, 43 - Mounting groove, 44 - Limit bolt, 45 - Internal thread hole;

[0035] 50 - Tool loading part, 501 - First block, 502 - Connecting block, 503 - Second block, 51 - Tool loading surface, 52 - Guide hole, 53 - Limited surface;

[0036] 60 - Positioning part, 61 - Positioning groove, 62 - Positioning surface, 63 - Guide groove, 64 - Notch;

[0037] 70 - Guiding part, 71 - Limiting surface.

[0038] 80 - Elastic part;

[0039] 90 - Limiting part. Detailed implementation manner

[0040] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model, and cannot be construed as a limitation to the present utility model.

[0041] As Figures 1 to 12 shown, the embodiments of the present utility model provide a tool loading rack, including a base 10, an adjusting part 40 and a tool loading part 50, wherein:

[0042] Referring to Figure 4 and Figure 9 shown, the base 10 is provided with a tool holder mounting part 11. The tool holder mounting part 11 is used to mount the tool holder 20. The structures of the tool holder mounting part 11 and the tool holder 20 can both refer to the relevant contents in the prior art and will not be elaborated here. Further, referring to Figure 1 and Figure 11As shown, a limiting member 90 can also be provided on the base 10 to limit the rotation and displacement of the tool holder 20. The tool holder 20 has a tool mounting portion 21 for mounting a tool 30. In a feasible implementation manner, the tool mounting portion 21 is a hole structure provided at the top end of the tool holder 20. The tool 30 is initially floatingly mounted in the tool mounting portion 21 and can reciprocate along its own axis direction to adjust the length of the tool 30 protruding from the tool mounting portion 21. After the protruding length of the tool 30 is confirmed to meet the requirements, the tool 30 is then fixed in the tool mounting portion 21.

[0043] The adjusting member 40 is provided on the base 10. The adjusting member 40 is preferably fixed to the base 10 in a detachable fixing manner. The adjusting member 40 can move along the axis direction of the tool 30. The adjusting member 40 serves as the mounting base of the tool loading member 50. Since different tools 30 have different protruding lengths, the distance between the tool loading member 50 and the tool 30 can be adjusted by adjusting the mounting position of the adjusting member 40 on the base 10, so that the tool loading member 50 can be applicable to the detection of the protruding lengths of various types of tools 30. For example, when a certain tool 30 needs to protrude a long distance from the tool mounting portion 21, the adjusting member 40 is moved away from the tool 30 along the axis direction of the tool 30 and then fixed. When another tool 30 needs to protrude a long distance from the tool mounting portion 21, the adjusting member 40 is moved closer to the tool 30 along the axis direction of the tool 30 and then fixed. The moving distance of the adjusting member 40 can be changed specifically according to the different protruding lengths of the tool 30, which is not limited herein.

[0044] In a feasible implementation manner, referring to Figure 3 and Figure 5 As shown, the adjusting member 40 is provided with a first mounting hole 41 and a first locking member 42. The first mounting hole 41 extends along the axis direction of the tool 30. The first locking member 42 cooperates with the first mounting hole 41 to lock or unlock the adjusting member 40 on the base 10. The first locking member 42 is preferably a bolt member. After the bolt member passes through the first mounting hole 41, it forms a threaded fit with a preset threaded hole on the base 10. When it is necessary to adjust the mounting position of the adjusting member 40, only the bolt member needs to be loosened, and the adjusting member 40 can thus move in the axis direction of the tool 30. After the adjusting member 40 reaches the preset position, the bolt member is tightened to fix the adjusting member 40, which is convenient and fast.

[0045] The tool - loading member 50 is directly or indirectly connected to the adjusting member 40. When the adjusting member 40 moves along the axial direction of the tool 30, the distance between the tool - loading member 50 and the tool 30 also changes accordingly, so that the tool - loading member 50 can be applicable to more tools 30. The tool - loading member 50 has a tool - loading surface 51. In the axial direction of the tool 30, the tool - loading member 50 can reciprocally move along a first preset path. The first preset path can be a linear movement path or a curved movement path, which is not limited herein. In the embodiments provided by the present utility model, the first preset path is a linear movement path that reciprocally moves along the axial direction of the tool 30, which can simplify the structure and more intuitively and conveniently determine the position of the tool - loading member 50. Refer to Figure 2 As shown, the tool - loading surface 51 is formed on the side of the tool - loading member 50 facing the tool 30, and the projection of the tool 30 in the axial direction falls on the tool - loading surface 51.

[0046] At the initial end of the first preset path, the tool - loading member 50 is far from the tool 30. After the detection starts, the tool - loading member 50 moves along the first preset path. When the tool - loading member 50 moves to the end of the first preset path, the tool - loading surface 51 abuts against the end face of the tool 30 or has a preset gap, so as to determine that the length of the tool 30 extending out of the tool - mounting portion 21 meets the requirements. If the tool - loading surface 51 does not abut against the end face of the tool 30 or does not have a preset gap, the length of the tool 30 extending out of the tool - mounting portion 21 does not meet the requirements, and the position of the tool 30 in the tool - mounting portion 21 needs to be adjusted before continuing the detection.

[0047] The cutting edge of the tool 30 provided by the present utility model needs to point to a specified direction. To detect whether the cutting - edge orientation of the tool 30 is correct, further, refer to Figure 7 and Figure 12 As shown, the tool - loading rack of the tool also includes a positioning member 60. The positioning member 60 is connected to the adjusting member 40. A positioning groove 61 is formed through the positioning member 60. The positioning groove 61 extends along the axial direction of the tool 30, and a positioning surface 62 is formed on the inner surface of the positioning groove 61. Refer to Figure 10 As shown, a positioned surface 31 is formed on the outer peripheral surface of the tool 30. The positioned surface 31 is a plane extending along the axial direction of the tool 30. The positioned surface 31 extends along the axial direction and the radial direction of the tool 30. When the tool 30 passes through the positioning groove 61, the positioning surface 62 fits or is parallel to the positioned surface 31. At this time, it can be determined that the cutting - edge orientation of the tool 30 is correct. If the positioning surface 62 intersects the positioned surface 31 or the tool 30 cannot pass through the positioning groove 61, it can be determined that the cutting - edge orientation of the tool 30 does not meet the preset requirements, and the fixed posture of the tool 30 needs to be adjusted to meet the preset requirements.

[0048] To avoid interference between the tool 30 and the positioning member 60 during the installation process, which may affect the installation of the tool 30, in the embodiments provided by the present utility model, the positioning member 60 is movably disposed on the adjusting member 40 along a second preset path. The second preset path can be a linear movement path or a curved movement path, which is not limited herein. When the positioning member 60 is located at the starting end of the second preset path, the positioning member 60 is misaligned with the tool 30, and the tool 30 can be normally installed into the tool installation portion 21. The positioning member 60 will not interfere with the installation of the tool 30. After the tool 30 is installed into the tool installation portion 21, the positioning member 60 moves along the second preset path. When the positioning member 60 is located at the end of the second preset path, the tool 30 extends into the positioning groove 61 to use the positioning member 60 to detect whether the cutting edge orientation of the tool 30 is correct.

[0049] In a feasible implementation manner, the second preset path is selected as a linear movement path. Referring to Figure 3 , Figure 5 and Figure 7 as shown, an installation groove 43 is provided through the adjusting member 40. The positioning member 60 is in clearance fit with the installation groove 43. A guiding groove 63 is provided on the positioning member 60. The axial direction of the guiding groove 63 is the extending direction of the second preset path. An internal threaded hole 45 is provided on the surface of the adjusting member 40, and the internal threaded hole 45 extends to communicate with the installation groove 43. A limit bolt 44 is in internal threaded fit with the internal threaded hole 45. When the limit bolt 44 is tightened, the limit bolt 44 moves towards the inside of the installation groove 43 until the limit bolt 44 passes through the guiding groove 63 and abuts against the adjusting member 40. When the adjusting member 40 moves to the starting end and the end of the second preset path, the limit bolt 44 abuts against the end of the guiding groove 63, thereby limiting the moving range of the positioning member 60.

[0050] Furthermore, referring to Figure 7As shown, the positioning groove 61 forms a notch 64 on the surface of the positioning member 60. During the movement of the positioning member 60, the tool 30 can enter the positioning groove 61 from the notch 64. In the initial state, the positioning member 60 is located at the starting end of the second preset path. The positioning member 60 and the tool 30 are misaligned. The tool 30 can be normally installed in the tool mounting portion 21. The positioning member 60 will not interfere with the installation of the tool 30. After the tool 30 is installed in the tool mounting portion 21, the positioning member 60 moves along the second preset path. The tool 30 moves from the notch 64. After the opening 64 extends into the positioning groove 61, the positioning member 60 reaches the end of the second preset path, so that the positioning member 60 can be used to detect whether the blade orientation of the tool 30 is correct. If the positioning surface 62 is in contact with or remains parallel to the positioned surface 31, it can be determined that the blade orientation of the tool 30 is correct. If the positioning surface 62 intersects with the positioned surface 31 or the tool 30 cannot pass through the positioning groove 61, it can be determined that the blade orientation of the tool 30 does not meet the preset requirements, and the fixed posture of the tool 30 needs to be adjusted to meet the preset requirements.

[0051] In the embodiment provided by the utility model, the tool mounting member 50 is arranged on the positioning member 60 to simplify the overall structure, so that the tool mounting holder is more compact as a whole. Specifically, the tool mounting holder also includes a guide member 70, which is directly or indirectly connected to the adjustment member 40. In a feasible implementation mode, referring to Figure 2 , Figure 3 as well as Figure 8 As shown, the guide member 70 is a rod structure, which is fixed to the end of the positioning member 60 that is away from the tool 30. The guide member 70 extends along the axial direction of the tool 30, and the axial direction of the guide member 70 is parallel to the extension direction of the first preset path. A guide hole 52 is provided on the tool mounting member 50, and the guide hole 52 is loosely fitted on the guide member 70, so that the tool mounting member 50 can be movably arranged on the positioning member 60, and the guide member 70 forms a guiding fit with the guide hole 52 to guide the tool mounting member 50 to move along the first preset path.

[0052] In order to limit the range of the first preset path, the tool holder 50 can only move within a certain range. When the tool holder 50 reaches the end of the first preset path, the tool holder 50 will not be able to continue to move downward. Figure 2 , Figure 6 as well as Figure 8As shown, the end of the guide member 70 away from the tool 30 has a limiting surface 71, and the end of the tool mounting member 50 facing the tool 30 has a limiting surface 53. When the tool mounting member 50 is located at the starting end of the first preset path, the limiting surface 53 is away from the limiting surface 71. In the axial direction of the tool 30, the limiting surface 53 is located above the limiting surface 71. When the tool mounting member 50 moves to the end of the first preset path, the limiting surface 53 abuts against the limiting surface 71, thereby limiting the further movement of the tool mounting member 50. At this time, it can be determined whether the length of the tool 30 extending out of the tool mounting portion 21 meets the requirements by observing whether the tool mounting surface 51 and the end face of the tool 30 abut against each other or have a preset gap.

[0053] In a feasible implementation mode, referring to Figure 6 As shown, the tool mounting member 50 includes a first block 501, a connecting block 502 and a second block 503. The connecting block 502 connects the first block 501 and the second block 503 respectively to form a "I"-shaped structure. The first block 501 is closer to the tool 30 than the second block 503. The guide hole 52 is set through the first block 501. The tool mounting surface 51 is formed on the side of the first block 501 close to the tool 30, and the limited surface 53 is formed on the side of the second block 503 close to the tool 30. When the tool mounting member 50 is located at the starting end of the first preset path, When the limit surface 71 is located in the gap between the first block 501 and the second block 503, there is a certain distance between the limited surface 53 and the limit surface 71, and the limit surface 71 will not block the movement of the tool mounting member 50. When the tool mounting member 50 starts to move, the second block 503 moves downward until the limited surface 53 abuts against the limit surface 71, and the tool mounting member 50 is restricted from further movement. At this time, it can be determined whether the length of the tool 30 extending out of the tool mounting portion 21 meets the requirements by observing whether the tool mounting surface 51 abuts against the end face of the tool 30 or has a preset gap.

[0054] Furthermore, in order to prevent the tool mounting member 50 from being offset during movement, causing the tool mounting surface 51 to tilt, so that the tool mounting surface 51 abuts against the end face of the tool 30 before the tool mounting member 50 reaches the end of the first preset path, thereby affecting the detection effect, in the embodiment provided by the utility model, it is required that the tool mounting surface 51 of the tool mounting member 50 always maintains a horizontal state during movement. Therefore, a plurality of guide holes 52 are evenly distributed on the tool mounting member 50, and the number and distribution of the guide members 70 correspond to the number and distribution of the guide holes 52. Each guide hole 52 is gap-fitted with a corresponding guide member 70, and the plurality of guide members 70 jointly play a guiding role, so that the tool mounting member 50 can maintain a horizontal posture during movement without offset, and the tool mounting surface 51 always remains horizontal. In a feasible implementation manner, referring to Figure 1 as well as Figure 6As shown, the number of guiding holes 52 is two, and the two guiding holes 52 are symmetrically arranged on the first block 501 with the axis of the connecting block 502 as the center line. While playing the role of guiding the stable movement of the tool loading member 50, the structure can be simplified to avoid excessive number of guiding members 70, resulting in increased cost and interference.

[0055] In the embodiment provided by the present utility model, the tool loading rack further includes an elastic member 80, and the elastic member 80 is connected to the tool loading member 50, so that the tool loading member 50 can reciprocally and elastically move along a first preset path. After the operator presses the tool loading member 50, the tool loading member 50 displaces along the first preset path, and the elastic member 80 accumulates elastic restoring force until the tool loading member 50 reaches the end of the first preset path. After detecting the protruding length of the tool 30, the operator cancels pressing the tool loading member 50, and the elastic restoring force of the elastic member 80 is released, driving the tool loading member 50 back to its original position, thereby reducing the working intensity of the operator and avoiding interference with the next process of the tool 30 at the same time.

[0056] In a feasible implementation manner, referring to Figure 2 and Figure 3 As shown, the elastic member 80 is a spring, and the spring is sleeved on the guiding member 70. In the initial state, the spring supports the tool loading member 50, and the spring is pressed down by the tool loading member 50 and has a certain deformation. When the tool loading member 50 moves towards the direction close to the tool 30, the spring is compressed, thereby accumulating elastic restoring force. When the tool loading member 50 reaches the end of the first preset path, the elastic restoring force reaches the maximum value. After the tool loading member 50 is released, the elastic restoring force of the spring pushes the tool loading member 50 back to the starting end of the first preset path.

[0057] Based on the above embodiment, the working process of the tool loading rack provided by the present utility model is as follows:

[0058] According to the model of the tool 30, the fixed position of the adjusting member 40 is adjusted specifically. Only need to loosen the bolt member, and the adjusting member 40 can thus move in the axial direction of the tool 30. After the adjusting member 40 reaches the preset position, tighten the bolt member to fix the adjusting member 40.

[0059] After the tool 30 is initially installed on the tool installation part 21 of the tool handle 20, the tool loading member 50 is at the starting end of the first preset path, and the positioning member 60 is at the starting end of the second preset path. The operator moves the positioning member 60, and the tool 30 extends into the positioning groove 61 from the notch 64. If the positioning surface 62 is in contact with or parallel to the surface to be positioned 31, it can be determined at this time that the cutting edge of the tool 30 faces correctly. If the positioning surface 62 intersects with the surface to be positioned 31 or the tool 30 cannot pass through the positioning groove 61, it can be determined that the cutting edge of the tool 30 does not meet the preset requirements, and the fixed posture of the tool 30 needs to be adjusted to meet the preset requirements.

[0060] After the fixed posture of the cutting tool 30 meets the preset requirements, the operator presses the tool loading member 50, and the tool loading member 50 moves downward until the limiting surface 53 abuts against the limiting surface 71. At this time, it can be determined whether the length of the cutting tool 30 extending out of the tool mounting portion 21 meets the requirements by observing whether the tool loading surface 51 abuts against the end surface of the cutting tool 30 or has a preset gap.

[0061] After the detection is completed, the tool loading member 50 is released, and the elastic restoring force of the elastic member 80 pushes the tool loading member 50 back to its original position.

[0062] The structure, features and effects of the present utility model have been described in detail based on the embodiments shown in the drawings. The above are only the preferred embodiments of the present utility model, but the present utility model is not limited to the scope defined by the drawings. Any changes made according to the concept of the present utility model, or equivalent embodiments modified into equivalent changes, still within the spirit covered by the description and the drawings, shall be within the protection scope of the present utility model.

Claims

1. A tool holder, characterized in that: include: A base, wherein the base is provided with a handle mounting portion, wherein the handle mounting portion is used to mount the handle, and the handle has a tool mounting portion, wherein the tool mounting portion is used to mount the tool; An adjusting member, disposed on the base, and movable along the axis direction of the tool; A tool-mounting member is directly or indirectly connected to the adjusting member, and has a tool-mounting surface. In the axial direction of the tool, the tool-mounting member can reciprocate along a first preset path. When the tool-mounting member moves to the end of the first preset path, the tool-mounting surface abuts against the end face of the tool or has a preset gap.

2. The tool holder according to claim 1, characterized in that: The tool holder also includes a positioning member, which is connected to the adjusting member. A positioning groove is provided on the positioning member. A positioning surface is formed on the inner surface of the positioning groove. A positioned surface is formed on the outer peripheral surface of the tool. The positioned surface extends along the axial direction and radial direction of the tool. When the tool passes through the positioning groove, the positioning surface is in contact with or remains parallel to the positioned surface.

3. The tool holder according to claim 2, characterized in that: The positioning member is movably arranged on the adjusting member along a second preset path. When the positioning member is located at the starting end of the second preset path, the positioning member and the tool are misaligned. When the positioning member is located at the end of the second preset path, the tool extends into the positioning groove.

4. The tool holder according to claim 1, characterized in that: The tool mounting holder also includes a guide member, which is directly or indirectly connected to the adjusting member, and extends along the axial direction of the tool. A guide hole is provided on the tool mounting member, and the guide hole is gap-fitted on the guide member to guide the tool mounting member to move along the first preset path.

5. The tool holder according to claim 4, characterized in that: The end of the guide member away from the tool has a limiting surface, and the end of the tool mounting member facing the tool has a limited surface. When the tool mounting member moves to the end of the first preset path, the limited surface abuts against the limiting surface.

6. The tool holder according to claim 5, characterized in that: The tool mounting part includes a first block, a connecting block and a second block, the connecting block respectively connects the first block and the second block, the first block is closer to the tool than the second block, the guide hole is penetrated through the first block, the tool mounting surface is formed on a side of the first block close to the tool, and the limited surface is formed on a side of the second block close to the tool.

7. The tool holder according to claim 4, characterized in that: A plurality of guide holes are evenly distributed on the tool mounting member, and each of the guide holes is gap-fitted with a corresponding guide member.

8. The tool holder according to claim 4, characterized in that: The tool mounting bracket further comprises an elastic member, wherein the elastic member is connected to the tool mounting member so that the tool mounting member can elastically move back and forth along the first preset path.

9. The tool holder according to claim 8, characterized in that: The elastic member is a spring, and the spring is sleeved on the guide member. When the tool mounting member moves toward a direction close to the tool, the spring is compressed.

10. The tool holder according to claim 1, characterized in that: The adjusting member is provided with a first mounting hole and a first locking member, wherein the first mounting hole extends along the axial direction of the tool, and the first locking member cooperates with the first mounting hole to lock the adjusting member on the base or unlock the adjusting member.

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