Changeable cutter for groove gear shaping in CVT (continuously variable transmission) master-slave disc

Abstract

The utility model relates to the technical field of gear shaping cutters, in particular to a CVT master-slave disc inner groove gear shaping replaceable cutter which comprises a cutter bar. The rod head is fixedly mounted at one end of the cutter rod; the at least one connecting block is arranged on the outer side of the mounting sleeve, and a tool bit is fixedly mounted at one end of the connecting block; the rotating angle of the mounting sleeve can be adjusted through the adjusting assembly, so that the tool bits can be driven to rotate synchronously, meanwhile, the positions of the tool bits on the periphery of the mounting sleeve are adjusted, all the tool bits are distributed at the needed position angles, the lantern ring is positioned on the periphery of the rod head through the locking piece, and therefore the position angles of the tool bits can be positioned and adjusted through the connecting block; therefore, the turning requirements of the inner grooves at different position angles in the CVT master-slave disc can be met, the adaptation degree of the cutter is effectively improved, the flow step of frequently changing the cutter is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear shaping tools, in particular to a replaceable gear shaping tool for grooves in a CVT master and slave disc. Background Art

[0002] The CVT system mainly includes basic components such as a driving wheel set, a driven wheel set, a metal belt and a hydraulic pump. The master and slave discs need to be provided with internal grooves at the required distribution positions before assembly, and the internal grooves need to be turned by a gear-shaping tool during the processing. In the process of turning the master and slave discs of the CVT, the following problems usually occur. See the patent publication number CN219254367U, which discloses a gear-shaping tool, including a processing equipment output shaft, a gear-shaping tool is sleeved on the bottom of the surface of the processing equipment output shaft, and a mounting block is fixedly connected to the inside of the gear-shaping tool, which is located inside the output shaft of the processing equipment. Although the patent does not require the user to consume more physical strength and time when replacing the gear-shaping tool, which improves the efficiency of replacing the gear-shaping tool, there is still a problem of inconvenient replacement, which affects the processing efficiency. Therefore, in the long-term research and development test process: the gear-shaping tool in the prior art is difficult to meet the turning requirements of the internal grooves at different positions and angles in the master and slave discs of the CVT, so frequent tool changes are required, which greatly improves the problem of work efficiency. Utility Model Content

[0003] In view of this, the purpose of the utility model is to propose a replaceable tool for slotting grooves in the master and slave plates of a CVT, so as to solve the problem that it is difficult to meet the turning requirements of internal grooves at different positions and angles in the master and slave plates of the CVT, thereby reducing work efficiency.

[0004] Based on the above-mentioned purpose, the utility model provides a CVT master-slave plate groove inserting replaceable tool, comprising: a tool rod; also comprising: a rod head, fixedly mounted on one end of the tool rod, a mounting sleeve is provided on the outer peripheral rotating sleeve of the rod head, and an adjustment component for limiting the position angle of the mounting sleeve is provided between the mounting sleeve and the rod head; at least one connecting block is arranged on the outer side of the mounting sleeve, a tool head is fixedly mounted on one end of the connecting block, the tool head is a semi-cylindrical structure, a positioning block is fixedly mounted on the middle part of a side of the tool head close to the mounting sleeve, an annular groove matching the positioning block is provided on the outer periphery of the mounting sleeve, a clamping block is fixedly mounted on one side of the tool head, one side of the clamping block is fitted on the mounting sleeve, a ring is fixedly mounted on one end of the connecting block away from the tool head, the ring is movably sleeved on the outer periphery of the rod head, a locking piece is provided in the middle part of the outer periphery of the rod head, and the position of the locking piece on the rod head is adjusted to limit the position angle of the ring.

[0005] Preferably, the adjustment assembly includes: a positioning ring, fixedly installed at one end of the mounting sleeve; a limiting ring, fixedly installed at the other end of the mounting sleeve; a fastening bolt, threaded through the limiting ring and inserted into the middle of one end of the rod head; wherein the position of the fastening bolt in the rod head is adjusted to limit the position angle between the limiting ring and the rod head.

[0006] Preferably, a thread groove cooperating with the thread of the fastening bolt is opened in the middle of one end of the rod head, a spring is arranged at one end inside the thread groove, a cushion block is fixedly installed at one end of the spring, a gasket is rotatably installed on one side of the cushion block, and one side of the gasket is pressed against the fastening bolt through the spring.

[0007] Preferably, the locking member is a fastening nut threadedly sleeved on the rod head, and the fastening nut is rotated to limit the position angle of the collar on the rod head.

[0008] Preferably, two connecting blocks are provided, and the two connecting blocks are symmetrically arranged around the periphery of the mounting sleeve.

[0009] Preferably, a mounting groove is provided in the middle of the other end of the knife rod, and a thread is provided on the inner wall of the mounting groove.

[0010] The beneficial effects of the utility model are as follows: the rotation angle of the mounting sleeve can be adjusted by adjusting the assembly, thereby driving the cutter head to rotate synchronously, and at the same time adjusting the position of the cutter head on the periphery of the mounting sleeve, so that each cutter head is distributed at the required position angle, and the sleeve ring is positioned on the periphery of the rod head by a locking member, so that the position angle of the cutter head can be adjusted by positioning the connecting block, thereby being able to meet the turning requirements of the internal grooves at different position angles in the CVT master and slave disks, thereby effectively improving the adaptability of the tool, reducing the process steps that require frequent tool changes, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0013] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0014] Figure 3 This is a schematic diagram of the structure of the cutter head of the utility model.

[0015] The markings in the figure are: 1. tool rod; 11. mounting groove; 2. rod head; 21. mounting sleeve; 22. positioning ring; 23. limit ring; 24. fastening bolt; 25. threaded groove; 26. spring; 27. pad; 28. gasket; 3. connecting block; 31. tool head; 32. positioning block; 33. clamping block; 34. collar; 35. fastening nut. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments. Example

[0017] like Figure 1 , Figure 2 and Figure 3 As shown, a CVT master-slave plate inner groove tooth inserting replaceable tool comprises: a tool rod 1, a mounting groove 11 is provided in the middle of the other end of the tool rod 1, and a thread is provided on the inner wall of the mounting groove 11; it also comprises: a rod head 2, which is fixedly mounted on one end of the tool rod 1 by screws, a mounting sleeve 21 is provided on the outer rotatable sleeve of the rod head 2, and an adjustment component for limiting the position angle of the mounting sleeve 21 is provided between the mounting sleeve 21 and the rod head 2; at least one connecting block 3 is arranged on the outer side of the mounting sleeve 21, two connecting blocks 3 are provided, and the two connecting blocks 3 are symmetrically arranged on the outer periphery of the mounting sleeve 21, and a cutter head 31 is fixedly mounted on one end of the connecting block 3 by screws, and the cutter head 31 is a semi-cylindrical structure, and the cutter head 31 is composed of cemented carbide and a physical coating coated on the outer periphery of the cemented carbide, and the radius R of the cutting head 31 is 3.13±0.02mm, and the cutter head 31 is close to the middle of one side of the mounting sleeve 21. A positioning block 32 is fixedly installed by screws, and an annular groove compatible with the positioning block 32 is provided on the periphery of the mounting sleeve 21. The positioning block 32 and the annular groove can further improve the stability of the connecting block 3 on the mounting sleeve 21. A clamping block 33 is fixedly installed on one side of the cutter head 31 by screws, and one side of the clamping block 33 is fitted on the mounting sleeve 21. A collar 34 is fixedly installed on the end of the connecting block 3 away from the cutter head 31 by screws. The collar 34 is movably sleeved on the periphery of the rod head 2. The connecting block 3 can be confined to the periphery of the mounting sleeve 21 by the clamping block 33 and the collar 34 to prevent it from falling off. A locking piece is provided in the middle part of the periphery of the rod head 2. The position of the locking piece on the rod head 2 is adjusted to limit the position angle of the collar 34. The locking piece is a fastening nut 35 threadedly sleeved on the rod head 2. The fastening nut 35 is rotated to limit the position angle of the collar 34 on the rod head 2.

[0018] Among them, the tool rod 1 is installed on a lathe, and the lathe drives the tool rod 1 to drive the cutter head 31 to move back and forth, so as to turn the inner wall of the CVT master and slave disks into three equally divided inner grooves. When it is necessary to adjust the distribution position angle of the inner groove of the processed product, the rotation angle of the mounting sleeve 21 can be adjusted by adjusting the assembly, so that the cutter head 31 can be driven to rotate synchronously, and the turning position angle can be adjusted without disassembling the tool rod 1. At the same time, the position of the cutter head 31 on the periphery of the mounting sleeve 21 is adjusted, so that each cutter head 31 is distributed at the required position angle, and the collar 34 is positioned on the periphery of the rod head 2 by a locking member, so that the position angle of the cutter head 31 can be positioned and adjusted by the connecting block 3, so as to meet the turning requirements of the inner grooves at different position angles in the CVT master and slave disks, effectively improve the adaptability of the tool, reduce the process steps that require frequent tool changes, and reduce the turning cycle from 6 minutes to 4 minutes, thereby improving work efficiency. Example

[0019] The difference from the previous embodiment is that the adjustment component includes: a positioning ring 22, which is fixedly installed at one end of the installation sleeve 21 by screws; a limiting ring 23, which is fixedly installed at the other end of the installation sleeve 21 by screws, and the installation sleeve 21 can be limited to the periphery of the rod head 2 by the positioning ring 22 and the limiting ring 23; a fastening bolt 24, which passes through the limiting ring 23 and is threadedly inserted in the middle of one end of the rod head 2; wherein, the position of the fastening bolt 24 in the rod head 2 is adjusted to limit the position angle of the limiting ring 23 and the rod head 2, so that the installation sleeve 21 after rotation adjustment can be positioned again at the periphery of the rod head 2 to achieve the effect of preventing rotation, and a fastening bolt 24 is provided in the middle of one end of the rod head 2 to be fastened to the fastening bolt 24 A threaded groove 25 with threaded mating, a spring 26 is provided at one end of the threaded groove 25, a cushion block 27 is fixedly installed at one end of the spring 26 by a screw, a gasket 28 is rotatably installed on one side of the cushion block 27, and one side of the gasket 28 is pressed against the fastening bolt 24 through the spring 26; when the fastening bolt 24 is rotated so that the end of the fastening bolt 24 inserted into the rod head 2 can fit with the gasket 28, the elastic restoring force of the spring 26 can confine the fastening bolt 24 in the rod head 2 to prevent the fastening bolt 24 from loosening, thereby further limiting the position angle of the mounting sleeve 21 after rotation adjustment, thereby making the processing accuracy of the inner groove in the CVT master and slave plates higher.

[0020] Working principle: When in use, the rotation angle of the mounting sleeve 21 can be adjusted by adjusting the assembly, thereby driving the cutter head 31 to rotate synchronously, and then the turning position angle can be adjusted without disassembling the tool rod 1. At the same time, the position of the cutter head 31 on the periphery of the mounting sleeve 21 is adjusted so that each cutter head 31 is distributed at the desired position angle, and the collar 34 is positioned on the periphery of the rod head 2 by a locking member, so that the position angle of the cutter head 31 can be positioned and adjusted by the connecting block 3, thereby meeting the turning requirements of the inner grooves at different positions and angles in the CVT master and slave plates.

Claims

1. A CVT master and slave plate inner groove gear inserting replaceable tool, comprising: The knife bar (1) is characterized in that it also comprises: a rod head (2) fixedly mounted on one end of the knife bar (1), a mounting sleeve (21) being provided on the outer peripheral rotating sleeve of the rod head (2), an adjusting component for limiting the position angle of the mounting sleeve (21) being provided between the mounting sleeve (21) and the rod head (2); at least one connecting block (3) being arranged on the outside of the mounting sleeve (21), a knife head (31) being fixedly mounted on one end of the connecting block (3), the knife head (31) being a semi-cylindrical structure, the knife head (31) being fixed at the middle of one side close to the mounting sleeve (21) A positioning block (32) is installed, and an annular groove matching the positioning block (32) is provided on the periphery of the installation sleeve (21). A clamping block (33) is fixedly installed on one side of the cutter head (31), and one side of the clamping block (33) is fitted on the installation sleeve (21). A collar (34) is fixedly installed on one end of the connection block (3) away from the cutter head (31), and the collar (34) is movably sleeved on the periphery of the rod head (2). A locking piece is provided in the middle of the periphery of the rod head (2), and the position of the locking piece on the rod head (2) is adjusted to limit the position angle of the collar (34).

2. A CVT master-slave disc internal groove gear-shaping replaceable tool according to claim 1, characterized in that: The adjustment component comprises: a positioning ring (22) fixedly mounted at one end of the mounting sleeve (21); a limiting ring (23) fixedly mounted at the other end of the mounting sleeve (21); and a fastening bolt (24) passing through the limiting ring (23) and being threadedly inserted into the middle of one end of the rod head (2); wherein the position of the fastening bolt (24) in the rod head (2) is adjusted to limit the position angle between the limiting ring (23) and the rod head (2).

3. A CVT master-slave disc internal groove gear-shaping replaceable tool according to claim 2, characterized in that: A thread groove (25) is provided in the middle of one end of the rod head (2) and is threadably matched with the fastening bolt (24). A spring (26) is provided at one end of the thread groove (25). A cushion block (27) is fixedly mounted on one end of the spring (26). A washer (28) is rotatably mounted on one side of the cushion block (27). One side of the washer (28) is pressed against the fastening bolt (24) via the spring (26).

4. A CVT master-slave disc internal groove gear-shaping replaceable tool according to claim 1, characterized in that: The locking member is a fastening nut (35) threadedly sleeved on the rod head (2), and the fastening nut (35) is rotated to limit the position angle of the collar (34) on the rod head (2).

5. A CVT master-slave disc internal groove gear-shaping replaceable tool according to claim 1, characterized in that: Two connecting blocks (3) are provided, and the two connecting blocks (3) are symmetrically arranged on the periphery of the mounting sleeve (21).

6. A CVT master-slave disc internal groove gear-shaping replaceable tool according to claim 1, characterized in that: A mounting groove (11) is provided in the middle of the other end of the knife rod (1), and a thread is provided on the inner wall of the mounting groove (11).

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