Clamp tool for prolonging service life of milling cutter
By setting limit blocks and limit protrusion groove structures in the fixture, the problem of unstable milling cutter clamping is solved, thereby improving machining accuracy and the service life of the milling cutter.
Patent Information
- Application Number
- CN202422913114.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Existing fixtures and tooling cannot hold milling cutters stably, resulting in reduced machining accuracy and inaccurate workpiece dimensions, which in turn reduces the service life of the milling cutters and the stability of the installation.
A fixture was designed to achieve stable fixing and limiting of the milling cutter holder by setting limiting blocks, limiting protrusions and limiting grooves on the fixed block and clamping block, so as to prevent the milling cutter from shaking.
It improves the stability and rotation angle accuracy of the milling cutter during operation, ensuring machining accuracy and workpiece size accuracy, and extending the service life of the milling cutter.
Smart Images
Figure CN223544170U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machine tool fixture technology, and in particular to a fixture for improving the life of milling cutters. Background Technology
[0002] A fixture is a device used to clamp workpieces during machining. When machining workpieces on a machine tool, in order to ensure that the surface of the workpiece meets the technical requirements such as the dimensions, geometric shape, and positional accuracy with other surfaces specified in the drawings, the workpiece must be clamped before machining. Fixtures help ensure the machining accuracy of the workpiece, stabilize product quality, improve labor productivity and reduce costs, and also ensure safe production.
[0003] However, existing fixtures and tooling lack stability in holding milling cutters. When the device rotates, the milling cutter will wobble, resulting in reduced machining accuracy, inaccurate workpiece dimensions, reduced milling cutter lifespan, and reduced installation stability. Therefore, to address the problems of reduced machining accuracy and inaccurate workpiece dimensions, a fixture and tooling that improves milling cutter lifespan is needed. Utility Model Content
[0004] To address the problems of reduced machining accuracy and inaccurate workpiece dimensions in existing technologies, this application provides a fixture for improving milling cutter life.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A fixture for improving the life of a milling cutter includes a fixed block, a plurality of movable slots I are provided at the front end of the fixed block, and a plurality of limiting blocks are fixedly connected to the inner wall of the front end of the fixed block. A clamping block is provided at the front end of the fixed block, a plurality of movable slots II are provided on the outer wall of the clamping block, and a limiting circular groove is provided on the outer wall of the front end of the clamping block. A rotating sleeve is provided at the front end of the clamping block, and a milling cutter shank is provided at the front end of the rotating sleeve. Limiting components are provided on the outer wall of the milling cutter shank and the inner wall of the clamping block.
[0007] As a further improvement of this utility model, the limiting component includes a plurality of limiting protrusions fixedly connected to the outer wall of the milling cutter shank and a plurality of limiting grooves opened on the inner wall of the clamping block, and the size of the limiting grooves is adapted to the size of the limiting protrusions.
[0008] As a further improvement of this utility model, the front outer wall of the fixing block is provided with a threaded groove.
[0009] As a further improvement of this utility model, the limiting groove and the moving groove located on the outer wall of the clamping block are staggered.
[0010] As a further improvement of this utility model, the outer diameter of the middle end of the clamping block is larger than the outer diameter of both ends of the clamping block.
[0011] As a further improvement of this utility model, the size of the limiting block is adapted to the circular groove located on the outer wall of the front end of the clamping block.
[0012] As a further improvement of this utility model, the inner wall of the rear end of the rotating sleeve is provided with a second threaded groove that matches the first threaded groove.
[0013] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:
[0014] 1. In this utility model, by setting multiple limiting blocks, the clamping block can be fixed, thereby enabling the front end of the clamping block to retract, so as to achieve the fixing effect of the milling cutter shank, ensuring the stability of the milling cutter during the working process, and preventing the milling cutter from falling off and being damaged during the working process.
[0015] 2. In this utility model, by setting multiple matching limiting protrusions and limiting grooves, the milling cutter holder can be limited to prevent the milling cutter from rotating, thus ensuring the accuracy of the milling cutter rotation angle and improving the accuracy of workpiece machining. Attached Figure Description
[0016] Figure 1 This is a perspective view of a fixture for improving the life of a milling cutter according to the present invention.
[0017] Figure 2 This is a schematic diagram of the fixing block of a fixture for improving the life of a milling cutter, as proposed in this utility model.
[0018] Figure 3 This is a schematic diagram of the clamping block of a fixture for improving the life of milling cutters proposed in this utility model;
[0019] Figure 4 for Figure 3 Enlarged view of point A in the image.
[0020] Legend:
[0021] 1. Fixed block; 2. Rotating sleeve; 3. Clamping block; 4. Milling cutter holder; 5. Limiting protrusion; 6. Limiting groove; 7. Threaded groove one; 8. Limiting block. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.
[0023] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0025] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0026] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.
[0027] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0028] Example 1: A fixture for improving milling cutter life includes a fixed block 1. The rear end of the fixed block 1 can be connected to the machining device body, and the inner diameter of the front end of the fixed block 1 is larger than the inner diameter of the rear end of the fixed block 1. The front end of the fixed block 1 is provided with multiple moving grooves. By setting multiple moving grooves, the front end of the fixed block 1 can be divided into multiple area blocks, so that multiple area blocks can be deformed to a certain extent. The inner wall of the front end of the fixed block 1 is fixedly connected with multiple limiting blocks 8. The multiple limiting blocks 8 can slide into the limiting circular groove located on the outer wall of the front end of the clamping block 3, thereby limiting the clamping block 3. The front end of the fixed block 1 is provided with a clamping block 3, and the outer wall of the clamping block 3 is provided with multiple moving grooves. Multiple movable slots divide the front end of clamping block 3 into multiple regions, allowing each region to deform to a certain extent. A limiting circular groove is formed on the outer wall of the front end of clamping block 3. A rotating sleeve 2 is provided at the front end of clamping block 3, with the inner diameter of the front end of rotating sleeve 2 being smaller than the inner diameter of the rear end. By screwing the threaded groove 2 inside rotating sleeve 2 into the threaded groove 7 located on the outer wall of the front end of fixed block 1, rotating sleeve 2 can be connected to fixed block 1, causing multiple regions at the front end of fixed block 1 to deform. This allows multiple limiting blocks 8 to embed into the limiting circular groove, thereby limiting the clamping block 3. A milling cutter shank 4 is provided at the front end of rotating sleeve 2, with the front end of milling cutter shank 4 connected to a milling cutter. The outer wall of the front end of fixed block 1 is provided with threaded groove 7. The outer diameter of the middle part of clamping block 3 is larger than the outer diameters of both ends of clamping block 3. The size of the limiting block 8 is adapted to the circular groove located on the outer wall of the front end of clamping block 3, and the limiting circular groove is used to limit the clamping block 3. The inner wall of the rear end of the rotating sleeve 2 is provided with a second threaded groove that matches the first threaded groove 7.
[0029] Example 2:
[0030] As one of the optimized structural designs for Example 1, such as Figures 1-4 As shown, multiple limiting protrusions 5 are fixedly connected to the outer wall of the milling cutter holder 4, and multiple limiting grooves 6 are opened on the inner wall of the clamping block 3. The dimensions of the limiting grooves 6 and the limiting protrusions 5 are adapted to each other. By setting multiple limiting protrusions 5 on the outer wall of the milling cutter holder 4 and the dimensions of the multiple limiting protrusions 5 are adapted to the dimensions of the multiple limiting grooves 6, the rotation of the milling cutter holder 4 during operation can be prevented, thereby ensuring the stability of the milling cutter during operation. When the front end of the clamping block 3 retracts inward, it can clamp the milling cutter holder 4, so that the multiple limiting protrusions 5 can fit tightly with the multiple limiting grooves 6.
[0031] Working principle: First, insert the rear end of the milling cutter shank 4 into the clamping block 3, and make the multiple limiting protrusions 5 on the outer wall of the milling cutter shank 4 basically located in the limiting grooves 6. Then, place the clamping block 3 on the rear end of the rotating sleeve 2, and align the rear end of the clamping block 3 with the front end of the fixed block 1. Then, screw the rotating sleeve 2 onto the outer wall of the front end of the fixed block 1. During the rotation, the rotating sleeve 2 pushes the clamping block 3 into the front end of the fixed block 1, causing the multiple area blocks at the front end of the fixed block 1 to expand. This causes the multiple limiting blocks 8 on the inner wall of the front end of the fixed block 1 to slide into the limiting circular grooves on the outer wall of the front end of the clamping block 3. Afterward, the multiple area blocks at the front end of the fixed block 1 contract and press the clamping block 3, causing the multiple area blocks at the front end of the clamping block 3 to contract together, thereby clamping the milling cutter shank 4. The multiple limiting protrusions 5 and the multiple limiting grooves 6 fit tightly together, thereby increasing the stability of the milling cutter during operation.
[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A fixture for improving milling cutter life, characterized in that, The device includes a fixed block (1), the front end of which is provided with multiple moving grooves, and the inner wall of the front end of the fixed block (1) is fixedly connected with multiple limiting blocks (8). The front end of the fixed block (1) is provided with a clamping block (3), the outer wall of the clamping block (3) is provided with multiple moving grooves, and the outer wall of the front end of the clamping block (3) is provided with a limiting circular groove. The front end of the clamping block (3) is provided with a rotating sleeve (2), the front end of the rotating sleeve (2) is provided with a milling cutter shank (4), and the outer wall of the milling cutter shank (4) and the inner wall of the clamping block (3) are both provided with limiting components.
2. The fixture for improving milling cutter life according to claim 1, characterized in that: The limiting component includes multiple limiting protrusions (5) fixedly connected to the outer wall of the milling cutter shank (4) and multiple limiting grooves (6) opened on the inner wall of the clamping block (3), and the size of the limiting grooves (6) is adapted to the limiting protrusions (5).
3. The fixture for improving milling cutter life according to claim 1, characterized in that: The front end outer wall of the fixing block (1) is provided with a threaded groove (7).
4. The fixture for improving milling cutter life according to claim 2, characterized in that: The limiting groove (6) and the moving groove located on the outer wall of the clamping block (3) are staggered.
5. A fixture for improving milling cutter life according to claim 1, characterized in that: The outer diameter of the middle end of the clamping block (3) is greater than the outer diameter of both ends of the clamping block (3).
6. The fixture for improving milling cutter life according to claim 1, characterized in that: The size of the limiting block (8) is adapted to the circular groove located on the outer wall of the front end of the clamping block (3).
7. A fixture for improving milling cutter life according to claim 1, characterized in that: The inner wall of the rear end of the rotating sleeve (2) is provided with a second threaded groove that is compatible with the first threaded groove (7).