Machining shaft cutter handle fixing structure

Abstract

The utility model discloses a machining shaft cutter handle fixing structure, which belongs to the field of cutter handle installation and comprises a machining shaft and a cutter handle, one end of the cutter handle is provided with a cutter handle installation portion, the other end of the cutter handle is provided with a cutter installation portion, and the cutter handle is matched with the machining shaft through the cutter handle installation portion. A connecting part is arranged between the cutter handle mounting part and the cutter mounting part, a positioning key groove is formed in the connecting part, and a groove opening of the positioning key groove faces the position direction of the machining shaft; the milling and turning tool further comprises a positioning disc, the positioning disc is detachably connected to the end of the machining shaft, a positioning key is arranged on the side, away from the machining shaft, of the positioning disc, and when the tool handle is matched with the machining shaft, the positioning key can be clamped into the positioning key groove. And meanwhile, the original use structures of the milling shaft and the turning cutter handle are not influenced.

Description

Technical Field

[0001] The utility model relates to the field of tool handle installation, in particular to a tool handle fixing structure for a machining shaft. Background Art

[0002] At present, the requirements for machine tools in the field of machine tool processing are getting higher and higher, and the processing procedures are further intensive. More and more workpiece processing requires machine tools to have turning and milling functions, while simple milling machines only have milling functions. The processing axis has no positioning and locking, and it is impossible to position the turning tool. Even if the turning tool can be successfully installed, it cannot be guaranteed that the turning tool will not rotate, and the turning function cannot be realized;

[0003] At present, the fixed structure of the machining axis and the tool holder often destroys the original structure of the machining axis, which affects the installation of the milling tool on the machining axis later. Similarly, in order to adapt to the new machining axis positioning structure, the tool holder is often added or changed with related structures, resulting in new restrictions when the turning tool is installed on the original lathe machining axis. The non-universality caused by the current positioning structure increases the processing cost of the enterprise.

[0004] In view of the above problems, the utility model designs and manufactures a machining shaft tool handle fixing structure to overcome the above defects. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the utility model provides a machining shaft and toolholder fixing structure, which can improve the positioning stability of the existing milling machining shaft and turning toolholder without affecting the original use structure of the milling machining shaft and turning toolholder.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a machining shaft and a tool handle fixing structure, comprising a machining shaft and a tool handle, one end of the tool handle is set as a tool handle mounting portion, the other end of the tool handle is set as a tool mounting portion, and the tool handle is matched with the machining shaft through the tool handle mounting portion;

[0007] A connecting portion is provided between the tool handle mounting portion and the tool mounting portion, and a positioning key slot is provided on the connecting portion, wherein the notch of the positioning key slot faces the position direction of the machining axis;

[0008] It also includes a positioning disk, which is detachably connected to the end of the processing shaft. A positioning key is provided on the side of the positioning disk away from the processing shaft. When the tool handle is matched with the processing shaft, the positioning key can be inserted into the positioning key slot.

[0009] Preferably, two sides of the positioning key are arranged as mutually parallel planes, the two planes are parallel to the center line of the positioning disk, and the two planes are symmetrically arranged with the center line of the positioning disk as a reference.

[0010] Preferably, the connecting portion comprises a first boss, and the first boss is arranged at an end of the tool handle mounting portion away from the processing axis;

[0011] A tapered hole is provided at the center of the end of the processing shaft, and the tool handle mounting portion of the tool handle cooperates with the processing shaft through the tapered hole;

[0012] The end of the tapered hole is provided with a second boss, and the second boss protrudes from the end of the processing shaft;

[0013] When the tool handle is matched with the processing shaft, the end of the second boss can abut against the end surface of the first boss.

[0014] Preferably, a circular hole is provided at the center of the positioning plate, and the diameter of the circular hole is larger than the outer diameter of the second boss;

[0015] When the positioning disk is connected to the end of the processing shaft, the second boss protrudes from the end surface of the positioning disk.

[0016] Preferably, there is at least one positioning keyway, and a plurality of positioning keyways are evenly distributed around the circumference of the center line of the tool handle;

[0017] The number of the positioning key slots corresponds to the number of the positioning keys.

[0018] Preferably, the positioning key is provided with a guide surface toward the positioning key slot end, and / or the notch of the positioning key slot is provided with a guide surface, and the guide surface is configured as a guide inclined surface or a guide arc surface.

[0019] Preferably, the positioning keyway is arranged on the side wall of the first boss;

[0020] And / or, the positioning keyway passes through the first boss along the axial direction of the shank.

[0021] Preferably, a mounting groove is provided on the side wall of the first boss, a positioning block is detachably connected to the mounting groove, and the positioning key groove is provided on one end of the positioning block facing the tool handle mounting portion.

[0022] Preferably, the connecting portion is provided with a threaded section, a positioning sleeve is threadedly connected to the threaded section, and a fastener is also threadedly connected to the threaded section to press the positioning sleeve;

[0023] A positioning key groove is arranged on the side wall of the positioning sleeve, or a positioning block is arranged on the positioning sleeve, and the positioning key groove is arranged on one end of the positioning block facing the tool handle mounting part.

[0024] Preferably, at least one screw hole is provided on the side wall of the connecting portion, a positioning ring is sleeved on the connecting portion, at least one radial through hole is provided on the positioning ring, and the positioning ring is fixed to the connecting portion by screws;

[0025] A positioning key groove is arranged on the side wall of the positioning ring, or a positioning block is arranged on the positioning ring, and the positioning key groove is arranged on one end of the positioning block facing the tool handle mounting part.

[0026] The utility model is beneficial in that:

[0027] 1. The utility model does not require structural changes to the machining axis. It only needs to connect a positioning plate to the end of the machining axis and set a positioning key on the end face of the positioning plate away from the machining axis, which can cooperate with the positioning key slot on the tool handle to realize the rotation and fixation of the machining axis and the tool handle during processing, so that the milling machine becomes a turning and milling compound, further intensifies the process, and realizes multiple uses of one machine.

[0028] 2. The positioning keyway on the tool handle of the utility model is arranged on the connecting part between the tool handle mounting part and the tool mounting part, so it does not affect the connection between the tool handle and the machining axis and the connection between the tool and the tool handle, retains the original turning connection structure of the tool handle, so that the tool handle can still be connected to the original lathe machining axis.

[0029] 3. When the tool handle of the utility model cooperates with the processing shaft, the end of the second boss can abut against the end surface of the first boss, and the tool handle mounting portion of the tool handle cooperates with the processing shaft through the tapered hole, so that double positioning is achieved between the tool handle and the processing shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the first embodiment of the present utility model;

[0031] Figure 2 This is a schematic diagram of the first embodiment of the utility model without the handle and the positioning key;

[0032] Figure 3 This is a schematic diagram of a positioning plate according to a first embodiment of the present utility model;

[0033] Figure 4 This is a schematic diagram of a knife handle according to a first embodiment of the utility model;

[0034] Figure 5 This is a schematic diagram of the second embodiment of the present utility model;

[0035] Figure 6 This is a schematic diagram of a positioning plate according to a second embodiment of the present utility model;

[0036] Figure 7 This is an exploded view of the knife handle of the second embodiment of the utility model;

[0037] Figure 8 This is an exploded view of the knife handle of the third embodiment of the utility model;

[0038] Fig. 9 This is an exploded view of the knife handle of the fourth embodiment of the utility model.

[0039] In the figure: 1-processing axis, 2-positioning plate, 3-tool handle, 11-tapered hole, 12-second boss, 21-round hole, 22-positioning key, 23-guide surface, 31-tool handle mounting part, 32-first boss, 33-positioning keyway, 34-tool clamping part, 35-tool mounting part, 36-mounting groove, 37-threaded hole, 38-positioning block, 39-connecting hole, 40-positioning sleeve, 41-fastener, 42-screw hole, 43-positioning ring, 44-radial through hole. DETAILED DESCRIPTION

[0040] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0041] like Figures 1 to 9 As shown, a machining shaft tool handle fixing structure includes a machining shaft 1 and a tool handle 3. A tapered hole 11 is provided at the center of the end of the machining shaft 1. One end of the tool handle 3 is provided as a tool handle mounting portion 31. The tool handle mounting portion 31 is in a frustum shape with an inclination of 1:10. The tool handle mounting portion 31 of the tool handle 3 cooperates with the machining shaft 1 through the tapered hole 11. The other end of the tool handle 3 is provided as a tool mounting portion 35. The tool is mounted on the tool handle 3 through the tool mounting portion 35.

[0042] A connecting portion is provided between the tool holder mounting portion 31 and the tool mounting portion 35 of the utility model, and a positioning key slot 33 is provided on the connecting portion, and the notch of the positioning key slot 33 faces the position direction of the machining axis 1. The above structure does not affect the connection between the tool holder 3 and the machining axis 1 and the connection between the tool and the tool holder 3, and retains the original turning connection structure of the tool holder 3, so that the tool holder 3 can still be connected to the original lathe machining axis.

[0043] It also includes a positioning disk 2, which is detachably connected to the end of the processing axis 1. A positioning key 22 is provided on the side of the positioning disk 2 away from the processing axis 1. When the tool handle 3 is matched with the processing axis 1, the positioning key 22 can be inserted into the positioning key groove 33. The vertical surfaces on both sides of the positioning key 22 are planes parallel to each other. The two planes are parallel to the center line of the positioning disk 2 and are symmetrically arranged with the center line of the positioning disk 2 as a reference.

[0044] The connecting portion of the utility model includes a first boss 32, which is a frustum. The diameter of the first boss 32 is greater than the maximum diameter of the tool handle mounting portion 31. The first boss 32 is arranged at the end of the tool handle mounting portion 31 away from the processing shaft 1. The end of the tapered hole 11 of the processing shaft 1 is provided with a second boss 12. The second boss 12 protrudes from the end of the processing shaft 1. When the tool handle 3 is matched with the processing shaft 1, the end of the second boss 12 can abut against the end face of the first boss 32. The tool handle mounting portion 31 of the tool handle 3 is matched with the processing shaft 1 through the tapered hole 11, so that double positioning is achieved between the tool handle 3 and the processing shaft 1.

[0045] A circular hole 21 is provided in the center of the positioning disk 2, and the diameter of the circular hole 21 is larger than the outer diameter of the second boss 12. When the positioning disk 2 is connected to the end of the processing shaft 1, it will be sleeved on the second boss 12 through the circular hole 21, and the second boss 12 protrudes from the end face of the positioning disk 2, ensuring that the end of the second boss 12 can abut against the end face of the first boss 32.

[0046] The utility model has at least one positioning key slot 33, and multiple positioning key slots 33 are evenly distributed around the circumference of the center line of the tool handle 3. The number of positioning key slots 33 corresponds to the number of positioning keys 22. The positioning key 22 is preferably provided with a guide surface 23 toward the end of the positioning key slot 33, and / or the notch of the positioning key slot 33 is provided with a guide surface 23, and the guide surface 23 is set as a guiding inclined surface or a guiding arc surface, so as to ensure that the positioning key 22 can be smoothly inserted into the positioning key slot 33.

[0047] Embodiment 1:

[0048] like Figures 1 to 4 As shown, the positioning keyway 33 is specifically arranged on the first boss 32, and preferably the positioning keyway 33 is arranged on the side wall of the first boss 32; and / or, the positioning keyway 33 passes through the first boss 32 along the axial direction of the shank 3, and the position of the positioning keyway 33 corresponds to the position of the positioning key 22.

[0049] Embodiment 2:

[0050] like Figures 5 to 7 As shown, a mounting groove 36 is provided on the side wall of the first boss 32, and mutually parallel planes are provided on both sides of the mounting groove 36. The two planes are symmetrical and parallel to the central axis of the first boss 32. A positioning block 38 is detachably connected to the mounting groove 36, and a positioning key groove 33 is provided at one end of the positioning block 38 facing the shank mounting portion 31.

[0051] Specifically, a threaded hole 37 is provided on one side of the mounting groove 36 near the center of the first boss 32, and a connecting hole 39 is provided on the positioning block 38. The positioning block 38 is connected to the mounting groove 36 by bolts. Preferably, at least two threaded holes 37 are provided, and the connection by two bolts helps to improve the stability of the positioning block 38 in the mounting groove 36. Furthermore, the size of the connecting hole 39 can be slightly larger than the size of the bolt, so that the position of the positioning block 38 in the mounting groove 36 can be adjusted.

[0052] Embodiment three:

[0053] like Figure 8As shown, the connection portion is provided with a threaded section, the threaded section is arranged between the first boss 32 and the tool mounting portion 35, the threaded section is threadedly connected with a positioning sleeve 40, and the threaded section is also threadedly connected with a fastener 41, and the fastener 41 can press the positioning sleeve 40. A positioning key groove 33 is provided on the side wall of the positioning sleeve 40, or a positioning block 38 is provided on the positioning sleeve 40, and a positioning key groove 33 is provided on the end of the positioning block 38 facing the tool handle mounting portion 31.

[0054] Embodiment 4:

[0055] like Fig. 9 As shown, at least one screw hole 42 is provided on the side wall of the connection part, and the position of the screw hole 42 is preferably set on the side wall of the first boss 32. A positioning ring 43 is sleeved on the connection part, and at least one radial through hole 44 is provided on the positioning ring 43. The positioning ring 43 is fixed to the connection part by screws. A positioning key groove 33 is provided on the side wall of the positioning ring 43, or a positioning block 38 is provided on the positioning ring 43, and a positioning key groove 33 is provided on the end of the positioning block 38 facing the handle mounting part 31.

[0056] The above embodiments do not require any structural changes to the processing shaft 1. It only requires connecting a positioning plate 2 to the end of the processing shaft 1 and setting a positioning key 22 on the end face of the positioning plate 2 away from the processing shaft 1. This can cooperate with the positioning key slot 33 on the tool handle 3 to achieve rotational fixation of the processing shaft 1 and the tool handle 3 during processing, thereby transforming the milling machine into a combined turning and milling machine, further concentrating the working procedures and achieving multiple uses of one machine.

[0057] As for the positioning keyway 33 on the tool handle 3, it is arranged on the connecting portion between the tool handle mounting portion 31 and the tool mounting portion 35, so it does not affect the connection between the tool handle 3 and the machining axis 1 and the connection between the tool and the tool handle 3, and retains the original turning connection structure of the tool handle 3, so that the tool handle 3 can still be connected to the original lathe machining axis 1.

[0058] In addition, the utility model has the same structure as the existing tool handle 3, and also includes a tool clamping portion 34. The tool clamping portion 34 is also a trapezoidal ring groove structure, which is convenient for the tool clamp to clamp the tool handle 3. Its position is located on the connecting portion. The specific position can be directly set on the first boss 32, or it can be set between the first boss 32 and the tool mounting portion 35, which will not be described in detail here.

[0059] It should be understood that the purpose of these embodiments is only to illustrate the utility model and is not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and / or variations to the utility model, and all of these equivalent forms also fall within the protection scope defined by the claims attached to this application.

Claims

1. A machining shaft tool holder fixing structure, characterized in that: It comprises a processing shaft (1) and a tool handle (3), wherein one end of the tool handle (3) is provided as a tool handle mounting portion (31), and the other end of the tool handle (3) is provided as a tool mounting portion (35), and the tool handle (3) cooperates with the processing shaft (1) via the tool handle mounting portion (31); A connecting portion is provided between the tool handle mounting portion (31) and the tool mounting portion (35), and a positioning keyway (33) is provided on the connecting portion, wherein the notch of the positioning keyway (33) faces the position direction of the machining axis (1); It also comprises a positioning disk (2), wherein the positioning disk (2) is detachably connected to the end of the processing shaft (1), and a positioning key (22) is provided on the side of the positioning disk (2) away from the processing shaft (1), and when the tool handle (3) is matched with the processing shaft (1), the positioning key (22) can be inserted into the positioning key slot (33).

2. A machining shaft tool holder fixing structure according to claim 1, characterized in that: The two sides of the positioning key (22) are arranged as mutually parallel planes, the two planes are parallel to the center line of the positioning disk (2), and the two planes are symmetrically arranged with the center line of the positioning disk (2) as a reference.

3. The machining shaft tool holder fixing structure according to claim 1, characterized in that: The connecting portion comprises a first boss (32), and the first boss (32) is arranged at an end of the tool handle mounting portion (31) away from the processing axis (1); A tapered hole (11) is provided at the center of the end of the processing shaft (1), and a shank mounting portion (31) of the shank (3) cooperates with the processing shaft (1) through the tapered hole (11); A second boss (12) is provided at the end of the tapered hole (11), and the second boss (12) protrudes from the end of the processing shaft (1); When the tool handle (3) is matched with the processing shaft (1), the end of the second boss (12) can abut against the end surface of the first boss (32).

4. A machining shaft tool holder fixing structure according to claim 3, characterized in that: A circular hole (21) is provided at the center of the positioning plate (2), and the diameter of the circular hole (21) is larger than the outer diameter of the second boss (12); When the positioning disk (2) is connected to the end of the processing shaft (1), the second boss (12) protrudes from the end surface of the positioning disk (2).

5. The machining shaft tool holder fixing structure according to claim 1, characterized in that: The positioning key groove (33) is provided with at least one, and a plurality of the positioning key grooves (33) are evenly distributed around the circumference of the center line of the tool handle (3); The number of the positioning key slots (33) corresponds to the number of the positioning keys (22).

6. The machining shaft tool holder fixing structure according to claim 1, characterized in that: The positioning key (22) is provided with a guide surface (23) at the end facing the positioning key slot (33), and / or the notch of the positioning key slot (33) is provided with a guide surface (23), and the guide surface (23) is set as a guide inclined surface or a guide arc surface.

7. The machining shaft tool holder fixing structure according to claim 3, characterized in that: The positioning key groove (33) is arranged on the side wall of the first boss (32); And / or, the positioning keyway (33) passes through the first boss (32) along the axial direction of the tool handle (3).

8. The machining shaft tool holder fixing structure according to claim 3, characterized in that: A mounting groove (36) is provided on the side wall of the first boss (32), a positioning block (38) is detachably connected to the mounting groove (36), and the positioning block (38) is provided with the positioning key groove (33) at one end facing the shank mounting portion (31).

9. The machining shaft tool holder fixing structure according to claim 1, characterized in that: The connecting portion is provided with a threaded section, a positioning sleeve (40) is threadedly connected to the threaded section, and a fastener (41) is also threadedly connected to the threaded section to press the positioning sleeve (40); A positioning keyway (33) is provided on the side wall of the positioning sleeve (40), or a positioning block (38) is provided on the positioning sleeve (40), and the positioning keyway (33) is provided on one end of the positioning block (38) facing the tool handle mounting portion (31).

10. The machining shaft tool holder fixing structure according to claim 1, characterized in that: At least one screw hole (42) is provided on the side wall of the connection part, a positioning ring (43) is sleeved on the connection part, at least one radial through hole (44) is provided on the positioning ring (43), and the positioning ring (43) is fixed on the connection part by screws; A positioning keyway (33) is provided on the side wall of the positioning ring (43), or a positioning block (38) is provided on the positioning ring (43), and the positioning keyway (33) is provided on one end of the positioning block (38) facing the shank mounting portion (31).

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