Milling cutter polishing jig of numerical control machine tool
By designing a vertical guide rod and limiting components for a CNC machine tool milling cutter grinding fixture, the problem of complex milling cutter sleeve angle adjustment in the existing technology was solved, achieving efficient and precise angle adjustment for milling cutter grinding.
Patent Information
- Application Number
- CN202422894153.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Existing milling cutter grinding fixtures require repeated rotation of the fastening bolts on the milling cutter collet when changing the grinding surface, which is cumbersome and makes it difficult to control the angle, thus affecting grinding efficiency.
A milling cutter grinding fixture for CNC machine tools was designed. Through the cooperation of a vertical guide rod, a limiting circular plate, and a limiting component, the milling cutter collet can be quickly adjusted in angle, avoiding the process of rotating the milling cutter collet. The combination structure of the limiting pin and the arc-shaped pressure plate simplifies the angle adjustment.
It improves the efficiency and precision of milling cutter grinding, simplifies the operation process, and ensures the accuracy of the milling cutter rotation angle.
Smart Images
Figure CN223506822U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to milling cutter polishing technical field, specifically a kind of milling cutter polishing jig of numerical control machine tool. BACKGROUND
[0002] Numerical control machine tool is the abbreviation of digital control machine tool, it is a kind of automatic machine tool equipped with program control system, it processes the program with control code or other symbolic instruction specification logically by program control system, and it is translated, with code number, it is represented by code number, it is input numerical control device by information carrier, to control machine tool action and process spare part, the rotating milling cutter for metal surface milling and finishing installed on it will appear certain wear in use, the wear will affect milling accuracy, so it needs to be polished and repaired.
[0003] At present, in prior art, the milling cutter fixed by jig contacts with rotating polishing wheel at certain angle, to realize the polishing of milling cutter, and the milling cutter with multiple milling surfaces needs to be polished one by one, the existing jig clamps and fixes milling cutter by milling cutter sleeve, when the polishing surface of milling cutter needs to be changed, the clamping and fixing of milling cutter by milling cutter sleeve needs to be cancelled, and after changing the relative angle, it is restored to clamp and fix, the process of cancelling and restoring the clamping and fixing of milling cutter by milling cutter sleeve needs to rotate fastening bolt on milling cutter sleeve reciprocally, it is more troublesome to operate, at the same time, the rotating angle of milling cutter is not easy to control, which may affect the polishing efficiency of milling surface of milling cutter.
[0004] Therefore, aiming at the above problems, a kind of milling cutter polishing jig of numerical control machine tool is provided. UTILITY MODEL CONTENTS
[0005] In order to make up for the deficiency of prior art, solve the problem that when the polishing surface of milling cutter needs to be changed, the clamping and fixing of milling cutter by milling cutter sleeve needs to be cancelled, and after changing the relative angle, it is restored to clamp and fix, the process of cancelling and restoring the clamping and fixing of milling cutter by milling cutter sleeve needs to rotate fastening bolt on milling cutter sleeve reciprocally, it is more troublesome to operate, at the same time, the rotating angle of milling cutter is not easy to control, which may affect the polishing efficiency of milling surface of milling cutter, a kind of milling cutter polishing jig of numerical control machine tool is provided.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A milling cutter grinding fixture for a CNC machine tool, comprising a support plate, a vertical guide rod symmetrically fixed to the top surface of the support plate, a limiting circular plate fixed to one end of the vertical guide rod, a side rod bracket installed on one side of the top surface of the support plate, a limiting circular groove formed on the outer wall of the shaft of the side rod bracket, the axis of the limiting circular groove being parallel to the axis of the vertical guide rod, a clamping sleeve fitted on the outer wall of the shaft of the side rod bracket, a milling cutter clamping sleeve fixed to one end of the clamping sleeve, a plurality of limiting through holes formed on the outer wall of the clamping sleeve, the plurality of limiting through holes being equally spaced along the circumferential direction of the outer wall of the clamping sleeve, a limiting component provided on the outside of the clamping sleeve, the limiting component comprising a limiting pin, the limiting pin being clamped between the limiting through hole and the limiting circular groove.
[0007] Preferably, one end of the limiting pin is fixedly connected to an arc-shaped pressure plate, and both ends of the arc-shaped pressure plate are fixedly connected to a U-shaped limiting frame. One end of the U-shaped limiting frame is slidably fitted with a vertical guide rod.
[0008] Preferably, a first spring is slidably fitted on the outer wall of the vertical guide rod, and the first spring is located between the end faces of the limiting circular plate and the U-shaped limiting frame.
[0009] Preferably, a clamping circular plate is fixedly connected to the center of the bottom surface of the support plate, a clamping base is provided below the support plate, a lifting rod is vertically fixed to the top surface of the clamping base, and the circular groove of the output end face of the lifting rod engages with the clamping circular plate.
[0010] Preferably, a first toothed ring is fixedly connected to the center of the bottom surface of the support plate.
[0011] Preferably, a limiting ring is fixed to the outer wall of the output end of the lifting rod, and multiple limiting guide rods are vertically fixed to the top surface of the limiting ring. The multiple limiting guide rods are installed at equal angles along the outer periphery of the output end of the lifting rod.
[0012] Preferably, a second toothed ring is fitted around the output end of the lifting rod, the second toothed ring meshes with the first toothed ring, and the top through hole of the second toothed ring slides and fits with the limiting guide rod.
[0013] Preferably, a second spring is fitted on the outer wall of the output end of the lifting rod, and the second spring is located between the adjacent side walls of the limiting ring and the second toothed ring.
[0014] The beneficial effects of this utility model are:
[0015] In this invention, the milling cutter sleeve is secured by the interlocking of the vertical guide rod on the support plate and the clamping sleeve. The limiting component restricts the rotation of the vertical guide rod and the clamping sleeve. When the milling cutter clamped in the milling cutter sleeve needs to change its grinding surface, the limiting pin, the arc-shaped pressure plate, and the U-shaped limiting frame are pulled up to disengage from the limiting groove and the limiting through hole. Then, the clamping sleeve is rotated to rotate the milling cutter and the milling cutter sleeve to the corresponding angle. After the limiting groove passes through the limiting through hole at the corresponding position on the clamping sleeve, the upward pulling force on the limiting pin is released, restoring the rotational positioning function of the milling cutter. This process is simple to operate and does not require the removal of the clamping function between the milling cutter sleeve and the milling cutter. The process of the fixed upper limiting grooves at different angles interlocking with the limiting component replaces the process of rotating the milling cutter, ensuring the rotational accuracy of the milling cutter and increasing the milling efficiency of the device. Attached Figure Description
[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0017] Figure 1 This is a perspective view of the present invention;
[0018] Figure 2 This is a perspective view of the side rod bracket and the clip sleeve disassembled in this utility model;
[0019] Figure 3 This is a perspective view of the limiting component in this utility model;
[0020] Figure 4 This is a perspective view of the support plate in this utility model, viewed from below.
[0021] Figure 5 This is a perspective view of the disassembled clamping base in this utility model;
[0022] Legend:
[0023] 1. Support plate; 11. Vertical guide rod; 12. Limiting circular plate; 2. Side rod bracket; 21. Limiting circular groove; 3. Clamping sleeve; 31. Milling cutter sleeve; 32. Limiting through hole; 4. Limiting assembly; 41. Limiting locking post; 42. Arc-shaped pressure plate; 43. U-shaped limiting frame; 44. First spring; 13. Clamping circular plate; 5. Clamping base; 51. Lifting rod; 14. First toothed ring; 52. Limiting ring; 53. Limiting guide rod; 54. Second toothed ring; 55. Second spring. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0025] Specific implementation examples are given below.
[0026] Please see Figure 1 - Figure 5 This utility model provides a milling cutter grinding fixture for CNC machine tools, including a support plate 1. A vertical guide rod 11 is symmetrically fixed to the top surface of the support plate 1. A limiting circular plate 12 is fixed to one end of the vertical guide rod 11. A side rod bracket 2 is installed on one side of the top surface of the support plate 1. A limiting circular groove 21 is formed on the outer wall of the shaft of the side rod bracket 2. The axis of the limiting circular groove 21 is parallel to the axis of the vertical guide rod 11. A clamping sleeve 3 is fitted on the outer wall of the shaft of the side rod bracket 2. A milling cutter clamping sleeve is fixed to one end of the clamping sleeve 3. 31. The outer wall of the mounting sleeve 3 is provided with multiple limiting through holes 32. The multiple limiting through holes 32 are equally spaced along the circumferential direction of the outer wall of the mounting sleeve 3. A limiting component 4 is provided on the outside of the mounting sleeve 3. The limiting component 4 includes a limiting pin 41. The limiting pin 41 is engaged between the limiting through holes 32 and the limiting circular groove 21. An arc-shaped pressure plate 42 is fixedly connected to one end of the limiting pin 41. U-shaped limiting frames 43 are fixedly connected to both ends of the arc-shaped pressure plate 42. One end of the U-shaped limiting frame 43 has a through hole that is perpendicular to the vertical... The guide rod 11 slides on the support plate 1, and the side rod bracket 2 and the clamping sleeve 3 engage to initially limit the end mill sleeve 31. The limiting component 4, installed with the cooperation of the vertical guide rod 11, the limiting circular plate 12, and the U-shaped limiting bracket 43, uses the limiting pin 41 to pass through the limiting circular groove 21 and the limiting through hole 32 to limit the rotation between the clamping sleeve 3 and the side rod bracket 2. When the end mill, which needs to be clamped in the end mill sleeve 31, needs to adjust its grinding angle, the upward-lifting arc-shaped pressure... After the plate 42 disengages its upper limit locking pin 41 from the limiting groove 21 and the limiting through hole 32, it rotates the entire clamping sleeve 3, causing the milling cutter and the milling cutter clamping sleeve 31 to rotate to the corresponding angle. Then, the limiting groove 21 passes through the limiting through hole 32 at the corresponding position on the clamping sleeve 3, releasing the upward pulling force on the limiting locking pin 41 and restoring the rotational positioning function of the milling cutter. The process of the fixed upper limit groove 21 at different angles engaging with the limiting component 4 replaces the process of rotating the milling cutter, ensuring the rotational accuracy of the milling cutter.
[0027] like Figure 3As shown, a first spring 44 is slidably fitted on the outer wall of the vertical guide rod 11. The first spring 44 is located between the end faces of the limiting circular plate 12 and the U-shaped limiting frame 43. The first spring 44 provides elastic compressive force for the mutual engagement between the limiting pin 41, the limiting circular groove 21, and the limiting through hole 32.
[0028] like Figure 2 , Figure 4 and Figure 5 As shown, a clamping circular plate 13 is fixedly connected to the center of the bottom surface of the support plate 1. A clamping base 5 is provided below the support plate 1. A lifting rod 51 is vertically fixed to the top surface of the clamping base 5. The circular groove of the output end face of the lifting rod 51 engages with the clamping circular plate 13. The clamping base 5 supports the support plate 1 through the lifting rod 51, so that the relative height of the support plate 1 can be changed within a certain range. The interlocking method between the lifting rod 51 and the clamping circular plate 13 allows the relative angle between the support plate 1 and the clamping base 5 to be changed, so as to adapt to the change of relative grinding angle and height of the milling cutter to be ground on the support plate 1. The lifting rod 51 can only be actively extended and retracted.
[0029] like Figure 2 , Figure 4 and Figure 5 As shown, a first toothed ring 14 is fixedly connected to the center of the bottom surface of the support plate 1. A limiting ring 52 is fixedly connected to the outer wall of the output end of the lifting rod 51. Multiple limiting guide rods 53 are vertically fixed to the top surface of the limiting ring 52. The multiple limiting guide rods 53 are installed at equal angles along the outer periphery of the output end of the lifting rod 51. A second toothed ring 54 is fitted around the output end of the lifting rod 51. The second toothed ring 54 meshes with the first toothed ring 14. The through hole on the top surface of the second toothed ring 54 slides with the limiting guide rod 53. A second spring 55 is fitted around the outer wall of the output end of the lifting rod 51. The second spring 55 is located between the limiting ring 52 and the second toothed ring 54. Between the adjacent sidewalls of the toothed ring 54, the limiting ring 52 fixed to the outer wall of the output end of the lifting rod 51 engages with the second toothed ring 54 through the limiting guide rod 53, so that the relative distance between the second toothed ring 54 and the first toothed ring 14 can be adjusted within a certain range, but they cannot rotate relative to each other. When the second toothed ring 54 and the first toothed ring 14 are engaged, the support plate 1 as a whole cannot rotate relative to each other, thus preventing the milling angle of the milling cutter from changing. When it is necessary to adjust the angle, the second toothed ring 54 needs to be pressed down to overcome the elastic force of the second spring 55, so that it disengages from the first toothed ring 14.
[0030] Working principle: The milling cutter sleeve 31 is initially limited by the interlocking of the side rod bracket 2 and the clamping sleeve 3 on the support plate 1. The limiting component 4, installed with the cooperation of the vertical guide rod 11, the limiting circular plate 12, and the U-shaped limiting frame 43, limits the rotation between the clamping sleeve 3 and the side rod bracket 2 through the limiting pin 41 passing through the limiting circular groove 21 and the limiting through hole 32. When the milling cutter, which needs to be clamped in the milling cutter sleeve 31, needs to adjust its grinding angle, the arc-shaped pressure plate 42 is lifted to limit the upper limit pin 41. After disengaging from the limiting groove 21 and limiting through hole 32, the entire clamping sleeve 3 is rotated, causing the milling cutter and milling cutter clamping sleeve 31 to rotate to the corresponding angle. Then, the limiting groove 21 passes through the corresponding limiting through hole 32 on the clamping sleeve 3, releasing the upward pull on the limiting pin 41 and restoring the rotational positioning function of the milling cutter. The process of fixing the limiting groove 21 at different angles and engaging with the limiting component 4 replaces the process of rotating the milling cutter. The clamping base 5 supports the support plate 1 via the lifting rod 51, causing the support plate 1 to be in a relatively stable position. The height can be changed within a certain range. The first spring 44 provides elastic compressive force for the mutual engagement between the limiting pin 41, the limiting groove 21, and the limiting through hole 32. The mutual engagement between the lifting rod 51 and the clamping plate 13 allows the relative angle between the support plate 1 and the clamping base 5 to change, so as to accommodate the changes in the relative grinding angle and height of the milling cutter to be ground on the support plate 1. Moreover, the lifting rod 51 can only be actively extended and retracted. The limiting ring 52 fixed to the outer wall of the output end of the lifting rod 51... By engaging the limiting guide rod 53 with the second toothed ring 54, the relative distance between the second toothed ring 54 and the first toothed ring 14 can be adjusted within a certain range, but they cannot rotate relative to each other. When the second toothed ring 54 and the first toothed ring 14 are engaged, the support plate 1 as a whole cannot rotate relative to each other, thus preventing the milling angle of the milling cutter from changing. When it is necessary to adjust the angle, the second toothed ring 54 needs to be pressed down to overcome the elastic force of the second spring 55, causing it to disengage from the first toothed ring 14.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A milling cutter grinding fixture for a CNC machine tool, comprising a support plate (1), characterized in that: A vertical guide rod (11) is symmetrically fixed to the top surface of the support plate (1). One end of the vertical guide rod (11) is fixed to a limiting circular plate (12). A side rod bracket (2) is installed on one side of the top surface of the support plate (1). A limiting circular groove (21) is formed on the outer wall of the shaft of the side rod bracket (2). The axis of the limiting circular groove (21) is parallel to the axis of the vertical guide rod (11). A clamping sleeve (3) is fitted on the outer wall of the shaft of the side rod bracket (2). One end of the clamping sleeve (3) is fixedly connected to a milling cutter sleeve (31). The outer wall of the clamping sleeve (3) is provided with multiple limiting through holes (32). The multiple limiting through holes (32) are opened at equal angles along the circumferential direction of the outer wall of the clamping sleeve (3). The outside of the clamping sleeve (3) is provided with a limiting component (4). The limiting component (4) includes a limiting pin (41). The limiting pin (41) is clamped between the limiting through hole (32) and the limiting groove (21).
2. The milling cutter grinding fixture for a CNC machine tool according to claim 1, characterized in that: One end of the limiting pin (41) is fixedly connected to an arc-shaped pressure plate (42), and both ends of the arc-shaped pressure plate (42) are fixedly connected to a U-shaped limiting frame (43). One end of the U-shaped limiting frame (43) is slidably fitted with a vertical guide rod (11).
3. A milling cutter grinding fixture for a CNC machine tool according to claim 2, characterized in that: The outer wall of the vertical guide rod (11) is fitted with a first spring (44), which is located between the end faces of the limiting circular plate (12) and the U-shaped limiting frame (43).
4. A milling cutter grinding fixture for a CNC machine tool according to claim 1, characterized in that: A clamping circular plate (13) is fixedly connected to the center of the bottom surface of the support plate (1). A clamping base (5) is provided below the support plate (1). A lifting rod (51) is vertically fixed to the top surface of the clamping base (5). The circular groove on the output end face of the lifting rod (51) engages with the clamping circular plate (13).
5. A milling cutter grinding fixture for a CNC machine tool according to claim 1, characterized in that: A first toothed ring (14) is fixed at the center of the bottom surface of the support plate (1).
6. A milling cutter grinding fixture for a CNC machine tool according to claim 4, characterized in that: A limiting ring (52) is fixedly connected to the outer wall of the output end of the lifting rod (51). A plurality of limiting guide rods (53) are vertically fixed to the top surface of the limiting ring (52). The plurality of limiting guide rods (53) are installed at equal angles along the outer periphery of the output end of the lifting rod (51).
7. A milling cutter grinding fixture for a CNC machine tool according to claim 6, characterized in that: The output end of the lifting rod (51) is fitted with a second toothed ring (54), which meshes with the first toothed ring (14). The top through hole of the second toothed ring (54) is slidably fitted with the limiting guide rod (53).
8. A milling cutter grinding fixture for a CNC machine tool according to claim 7, characterized in that: The outer wall of the output end of the lifting rod (51) is fitted with a second spring (55), which is located between the adjacent side walls of the limiting ring (52) and the second toothed ring (54).