Disposable chip milling cutter
By designing the limiting mechanism and spring mechanism in the milling chip tool, the separate disassembly and replacement of the cutting head is achieved, which solves the problem of high replacement cost of traditional milling chip tools, reduces production costs and extends service life.
Patent Information
- Application Number
- CN202420605878.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-03-27
AI Technical Summary
The milling part and clamping part of traditional milling chip tools are designed in one-piece design, resulting in the need to replace the entire tool when the edge of the milling part collapses, wasting materials and increasing production costs.
A discarded milling chip tool is designed. By setting a limiting mechanism between the cutting head and the mounting rod, the fitting of the bolt and the square rod can realize the separate disassembly and replacement of the cutting head, reducing the replacement cost, and maintaining the connection through the spring. stable.
The individual replacement of the tool head is achieved, which reduces the replacement cost, and maintains a stable connection between the tool head and the installation rod, extending the service life of the tool.
Smart Images
Figure CN222133575U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of milling chip tools, in particular to a discard type milling chip tool. Background Art
[0002] A milling cutter is a rotary tool with one or more teeth used for milling. Each tooth sequentially and intermittently removes the workpiece's excess. Milling cutters are primarily used on milling machines to machine planes, steps, grooves, formed surfaces, and cut off workpieces.
[0003] The milling part and clamping part of traditional milling tools are usually designed as an integrated whole. Therefore, when the cutting edge of the milling part breaks, the entire tool needs to be discarded and replaced, which is very wasteful of materials and has high replacement costs, increasing production costs. Utility Model Content
[0004] In view of the above problems existing in the existing milling cutter, the present utility model is proposed.
[0005] Therefore, the purpose of the present invention is to provide a disposable milling tool, which solves the problem that the milling part and the clamping part of the milling tool in the prior art are usually designed as an integrated whole. Therefore, when the blade of the milling part is damaged, the entire tool needs to be discarded and replaced, which is very wasteful of materials and has a high replacement cost, thereby increasing production costs.
[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:
[0007] A disposable milling tool comprises a tool rod and a tool head, the tool head being arranged on one side of the tool rod, a mounting rod being fixedly sleeved on the side of the tool rod close to the tool head, a threaded hole being provided in the middle of one end of the mounting rod close to the tool head, a circular hole being provided in the middle of the tool head, a bolt being sleeved on the internal thread of the circular hole, the other end of the bolt being threadedly connected to the threaded hole, a plurality of grooves being distributed in a cross-shaped array with the circular hole as the axis on one end of the tool head close to the tool rod, a protrusion being fixedly provided at a position corresponding to the plurality of grooves on the end of the mounting rod close to the tool head, the plurality of protrusions being clamped with the corresponding grooves, and a limiting mechanism for limiting the rotation of the bolt is provided inside the threaded hole.
[0008] Preferably, the limiting mechanism includes a fixed shell and a square rod, the fixed shell is fixedly arranged inside the threaded hole, a stopper is slidingly arranged inside the fixed shell, the square rod is fixedly arranged on the side of the stopper close to the threaded rod, one end of the square rod extends to the outside of the fixed shell, a square hole is opened in the middle of the bolt, one end of the outer side of the square rod is plugged into the square hole, a spring is fixedly arranged on the side of the stopper away from the square rod, and the other end of the spring is fixedly connected to the inner wall of the fixed shell.
[0009] Preferably, a chip removal groove is provided on the rod wall at one end of the mounting rod close to the cutter head.
[0010] Preferably, the longitudinal sections of the stopper and the fixing shell are both rectangular.
[0011] Preferably, a hexagonal groove is formed on one end of the bolt away from the mounting rod.
[0012] Preferably, the cutter head is made of tungsten steel.
[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:
[0014] 1. The utility model uses a rod matching the square hole to insert into the square hole, pushes the square rod out of the square hole, and then uses a hexagonal wrench to turn the bolt to separate the bolt from the mounting rod, thereby releasing the limit between the cutter head and the mounting rod, and realizing the separate disassembly and replacement of the cutter head, which can reduce the replacement cost of the cutter.
[0015] 2. The utility model can maintain a stable connection between the cutter head and the mounting rod by inserting the square rod into the square hole under the elastic force of the spring after replacing the cutter head. This prevents the bolt from rotating. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0017] Figure 1 This is a schematic diagram of the structure of the utility model;
[0018] Figure 2 for Figure 1 A three-dimensional view of the middle cutter head;
[0019] Figure 3 for Figure 1 A three-dimensional view of the middle arbor;
[0020] Figure 4 for Figure 1 A front view structural diagram of
[0021] Figure 5 for Figure 1 A right side cross-sectional structural diagram;
[0022] Figure 6 for Figure 5 Schematic diagram of the enlarged structure of part A in the middle.
[0023] Description of reference numerals:
[0024] 1. Cutter bar; 2. Mounting rod; 3. Cutter head; 4. Bolt; 5. Groove; 6. Bump; 7. Square rod; 8. Fixed shell; 9. Stop block; 10. Spring. DETAILED DESCRIPTION
[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.
[0026] The embodiment of the utility model discloses a discard type milling tool.
[0027] Reference Figure 1-6 The top of described tool shaft 1 is provided with the screw thread of described tool head 3, and the screw thread of described tool head 3 is screwed in the tool holder 3.
[0028] Reference Figure 1-6 A limiting mechanism for limiting the rotation of the bolt 4 is provided inside the threaded hole. The limiting mechanism includes a fixed shell 8 and a square rod 7. The fixed shell 8 is fixedly arranged inside the threaded hole. A stopper 9 is slidingly provided inside the fixed shell 8. The square rod 7 is fixedly arranged on the side of the stopper 9 close to the threaded rod. One end of the square rod 7 extends to the outside of the fixed shell 8. A square hole is provided in the middle of the bolt 4. One end of the outer side of the square rod 7 is plugged into the square hole. A spring 10 is fixedly provided on the side of the stopper 9 away from the square rod 7. The other end of the spring 10 is fixedly connected to the inner wall of the fixed shell 8. The longitudinal sections of the stopper 9 and the fixed shell 8 are both rectangular, so that the stopper 9 cannot rotate, that is, it can slide stably.
[0029] In the present invention, when the cutter head 3 is damaged and needs to be replaced, a rod matching the square hole is used to insert into the square hole, the square rod 7 is pushed out of the square hole, and then the bolt 4 is turned with a hexagonal wrench to separate the bolt 4 from the mounting rod 2, that is, the limit between the cutter head 3 and the mounting rod 2 can be released, that is, the cutter head 3 can be disassembled and replaced separately, which can reduce the replacement cost of the tool. After replacing the new cutter head 3, the square rod 7 is inserted into the square hole under the elastic force of the spring 10, that is, the bolt 4 cannot be rotated, that is, the cutter head 3 and the mounting rod 2 can be kept firmly connected.
[0030] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A discard milling tool, comprising a tool bar (1) and a tool head (3), characterized in that: The cutter head (3) is arranged on one side of the cutter rod (1); a mounting rod (2) is fixedly sleeved inside the side of the cutter rod (1) close to the cutter head (3); a threaded hole is provided in the middle of one end of the mounting rod (2) close to the cutter head (3); a round hole is provided in the middle of the cutter head (3); a bolt (4) is sleeved in the inner thread of the round hole; the other end of the bolt (4) is threadedly connected to the threaded hole; a plurality of grooves (5) are distributed in a cross-shaped array with the round hole as the axis at one end of the cutter head (3) close to the cutter rod (1); a protrusion (6) is fixedly provided at one end of the mounting rod (2) close to the cutter head (3) and at positions corresponding to the plurality of the grooves (5); the plurality of the protrusions (6) are all screwed into the corresponding grooves ( 5) snap-fitting, a limiting mechanism for limiting the rotation of the bolt (4) is arranged inside the threaded hole, the limiting mechanism comprises a fixed shell (8) and a square rod (7), the fixed shell (8) is fixedly arranged inside the threaded hole, a stopper (9) is slidably arranged inside the fixed shell (8), the square rod (7) is fixedly arranged on a side of the stopper (9) close to the threaded rod, one end of the square rod (7) extends to the outside of the fixed shell (8), a square hole is opened in the middle of the bolt (4), one end of the outer side of the square rod (7) is plugged into the square hole, a spring (10) is fixedly arranged on a side of the stopper (9) away from the square rod (7), and the other end of the spring (10) is fixedly connected to the inner wall of the fixed shell (8).
2. The throw-away milling tool according to claim 1, characterized in that: A chip removal groove is provided on a rod wall at one end of the mounting rod (2) close to the cutter head (3).
3. The throw-away milling tool according to claim 1, characterized in that: The longitudinal sections of the stopper (9) and the fixed shell (8) are both rectangular.
4. The throw-away milling tool according to claim 1, characterized in that: A hexagonal groove is formed at one end of the bolt (4) away from the mounting rod (2).
5. The throw-away milling tool according to claim 1, characterized in that: The cutter head (3) is made of tungsten steel material.