A taper end mill

Abstract

The utility model relates to tool technical field discloses a taper end mill, including the tool head, the handle fixedly connected at the top of tool head and be used for handle installation's installation tool holder, both sides of handle all are fixedly connected with the locating strip, the front and back of handle all are set up with fixed groove, the installation tool holder includes the tool holder main part. The utility model discloses through being equipped with fixed assembly control assembly, when installation tool holder drives tool head high -speed rotation and works, makes two counterweight frame to have centrifugal force that moves the movable cavity inner wall close, further increases two moving block mutual close force through the movable plate, then makes fixed insertion block steady and touches in the inboard of fixed groove, increased the stability between locating strip and installation tool holder, avoided the loosening, improved the security, through the mutual cooperation of counterweight frame, movable plate, fixed frame and moving block can realize the reinforcing effect when this milling cutter high -speed rotation.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, and more specifically, to a tapered end mill. Background Technology

[0002] A tapered end mill is a commonly used milling tool with a tapered cutting edge. It is typically used for machining parts with tapered shapes or for precision machining within confined spaces. The cutting edge of a tapered end mill is tapered, and the diameter of the tool gradually decreases along its length. This design makes it particularly suitable for machining workpieces with tapered shapes.

[0003] Tapered end mills generally consist of a shank and a cutter head, and are typically bolted to the tool holder during installation. However, in actual use, the tool holder and cutter head rotate at high speed. Depending on the taper machining position of the workpiece, the cutter head is subjected to compressive forces in different directions from the workpiece surface. After frequent use and stress, the fastening bolts of the tapered end mill are prone to loosening or movement, leading to cutter head wobbling. This affects the taper machining effect, and in the long run, may even pose a safety hazard due to poor installation stability. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a tapered end mill.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tapered end mill, comprising a cutter head, a shank fixedly connected to the top of the cutter head, and a mounting plate for mounting the shank. Positioning strips are fixedly connected to both sides of the shank. Fixing grooves are formed on both the front and back of the shank. The mounting plate includes a plate body, with a mounting groove at the bottom. A movable cavity is formed at the top of the inner wall of the mounting groove. A fixing component is installed in the middle of the inner side of the movable cavity. Control components are installed on both sides inside the movable cavity. The top of the control components... The device is equipped with a thrust assembly. The fixing assembly includes a fixing rod fixedly connected to the inner wall of the movable cavity. Movable blocks are movably sleeved on both the front and back sides of the outer side of the fixing rod. A fixing plate is fixedly connected to the bottom of the movable block. Fixing inserts are fixedly connected to the surfaces of the two fixing plates that are close to each other. The control assembly includes a control rod movably sleeved on both sides of the tool holder body. A counterweight frame is fixedly connected to one end of the control rod located inside the movable cavity. Movable plates are installed on both ends of the counterweight frame on the side away from the control rod. A handle block is fixedly connected to the other end of the control rod.

[0006] As a preferred technical solution of this utility model, positioning grooves are provided on both sides of the inner wall of the mounting groove, the positioning grooves are slidably sleeved with the positioning strip, and the mounting grooves are adapted to the tool holder.

[0007] As a preferred embodiment of this utility model, the fixing groove and the fixing block are adapted to each other, and the fixing block has a chamfered edge on its periphery away from the fixing plate.

[0008] As a preferred embodiment of this utility model, the fixing component further includes a positioning rod fixedly connected to the inside of the movable cavity, and fixing frames are fixedly connected to both sides of the movable block, with the fixing frames movably sleeved with the positioning rod.

[0009] As a preferred technical solution of this utility model, a movable groove is provided on the side of the fixed frame away from the movable block, and a first connecting block is fixedly connected to the inner side of the movable groove. The first connecting block is movably sleeved with the end of the movable plate away from the counterweight frame.

[0010] As a preferred embodiment of this utility model, both ends of the counterweight frame are provided with connecting grooves, and a second connecting block is fixedly connected to the inner side of the connecting groove. The second connecting block is movably sleeved with the movable plate.

[0011] As a preferred technical solution of this utility model, the thrust assembly includes a cylindrical rod fixedly connected to the inner wall of the movable cavity and a movable block fixedly connected to the top of the counterweight frame. The movable block is movably sleeved with the cylindrical rod. A stop block is fixedly sleeved on the outer side of the cylindrical rod. A pressure spring is movably sleeved on the outer side of the cylindrical rod. The pressure spring is located between the stop block and the movable block.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, by providing a fixed component and a control component, when the mounting tool holder drives the cutter head to rotate at high speed for operation, causes the two counterweight frames to have a centrifugal force that moves towards the inner wall of the movable cavity. The movable plate further increases the force that brings the two moving blocks closer to each other, thereby making the fixed insert block stably abut against the inner side of the fixed groove. This increases the stability between the positioning strip and the mounting tool holder, prevents loosening, and improves safety. Through the cooperation of the counterweight frame, movable plate, fixed frame, and moving block, a reinforcement effect can be achieved when the milling cutter rotates at high speed.

[0014] 2. This utility model is equipped with a thrust assembly. The pressure spring exerts a thrust on the movable block, causing it to move away from each other. This causes the movable block to drive the two counterweight frames to generate a thrust that moves away from each other, causing the movable plate to rotate in a direction that moves closer to each other. This causes the fixed frame to drive the movable block to move along the outside of the fixed rod in a direction that moves closer to each other, so that the fixed insert block is inserted into the inside of the fixed groove, thereby fixing the knife handle. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the fixing groove structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the main body of the tool holder of this utility model;

[0018] Figure 4 This is a schematic diagram of the fixing component structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the control component structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the thrust assembly structure of this utility model.

[0021] In the diagram: 1. Cutter head; 101. Cutter handle; 102. Positioning strip; 103. Fixing groove; 2. Mounting tool holder; 201. Tool holder body; 202. Mounting groove; 203. Positioning groove; 204. Movable cavity; 3. Fixing assembly; 301. Fixing rod; 302. Moving block; 303. Fixing plate; 304. Fixing insert; 305. Fixing frame; 351. Movable groove; 352. First connecting block; 306. Positioning rod; 4. Control assembly; 401. Counterweight frame; 411. Connecting groove; 412. Second connecting block; 402. Movable plate; 403. Control rod; 404. Handle block; 5. Thrust assembly; 501. Cylindrical rod; 502. Movable block; 503. Stop block; 504. Pressure spring. Detailed Implementation

[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 6As shown, this utility model provides a tapered end mill, including a cutter head 1, a shank 101 fixedly connected to the top of the cutter head 1, and a mounting plate 2 for mounting the shank 101. Positioning strips 102 are fixedly connected to both sides of the shank 101. Fixing grooves 103 are provided on both the front and back of the shank 101. The mounting plate 2 includes a plate body 201. A mounting groove 202 is provided at the bottom of the plate body 201. A movable cavity 204 is provided at the top of the inner wall of the mounting groove 202. A fixing component 3 is installed in the middle of the inner side of the movable cavity 204. Control components 4 are installed on both sides inside the movable cavity 204. A thrust component 5 is installed on the top of the control components 4. The fixing component 3 includes a fixing rod 301 fixedly connected to the inner wall of the movable cavity 204. Moving blocks 302 are movably sleeved on both the front and back of the outer side of the fixing rod 301. The bottom of the moving blocks 302 is fixed. The control assembly 4 includes control rods 403 movably sleeved on both sides of the tool holder body 201. One end of the control rod 403 located inside the movable cavity 204 is fixedly connected to a counterweight frame 401. Movable plates 402 are installed on both ends of the counterweight frame 401 on the side away from the control rod 403. The other end of the control rod 403 is fixedly connected to a handle block 404. The thrust assembly 5 includes a cylindrical rod 501 fixedly connected to the inner wall of the movable cavity 204 and a movable block 502 fixedly connected to the top of the counterweight frame 401. The movable block 502 is movably sleeved with the cylindrical rod 501. A stop block 503 is fixedly sleeved on the outer side of the cylindrical rod 501. A pressure spring 504 is movably sleeved on the outer side of the cylindrical rod 501. The pressure spring 504 is located between the stop block 503 and the movable block 502.

[0024] In this embodiment, the pressure spring 504 exerts a pushing force on the movable block 502 that moves away from each other, thereby causing the movable block 502 to drive the two counterweight frames 401 to generate a pushing force that moves away from each other, causing the movable plate 402 to rotate in a direction that moves closer to each other, thereby causing the fixed frame 305 to drive the moving block 302 to move along the outside of the fixed rod 301 in a direction that moves closer to each other, so that the fixed insert 304 is inserted into the inside of the fixed groove 103, thereby fixing the knife handle 101.

[0025] The mounting groove 202 has positioning grooves 203 on both sides of its inner wall. The positioning grooves 203 are slidably connected to the positioning strip 102, and the mounting groove 202 is compatible with the tool holder 101.

[0026] The positioning bar 102 and the positioning groove 203 work together to position the tool holder 101 and prevent relative rotation between the tool holder 101 and the tool mounting base 2.

[0027] The fixing groove 103 and the fixing block 304 are adapted to each other, and the fixing block 304 has beveled edges on its four sides away from the fixing plate 303.

[0028] The cooperation between the fixing groove 103 and the fixing block 304 can prevent the tool holder 101 from detaching from the inside of the mounting groove 202. The chamfered setting of the fixing block 304 can better insert into the inside of the fixing groove 103.

[0029] The fixing component 3 also includes a positioning rod 306 fixedly connected to the inside of the movable cavity 204, and a fixing frame 305 fixedly connected to both sides of the movable block 302, with the fixing frame 305 movably sleeved with the positioning rod 306.

[0030] The fixed frame 305 and the positioning rod 306 work together to position the moving block 302, preventing it from rotating, and the fixed frame 305 controls the movement of the moving block 302.

[0031] The fixed frame 305 has a movable groove 351 on the side away from the movable block 302. A first connecting block 352 is fixedly connected to the inner side of the movable groove 351. The first connecting block 352 is movably sleeved with the end of the movable plate 402 away from the counterweight frame 401. Both ends of the counterweight frame 401 have connecting grooves 411. A second connecting block 412 is fixedly connected to the inner side of the connecting groove 411. The second connecting block 412 is movably sleeved with the movable plate 402.

[0032] Under the action of centrifugal force and the elastic force of the pressure spring 504, the counterweight frame 401 generates a force away from the fixed frame 305, so that the movable plate 402 has a pulling force on the two fixed frames 305 to bring them closer together, so that the fixed insert 304 is stably abutting against the inside of the fixed groove 103.

[0033] Working principle and usage process of this utility model:

[0034] The pressure spring 504 exerts a pushing force on the movable block 502, causing the movable block 502 to drive the two counterweight frames 401 to generate a pushing force that moves them away from each other. This causes the movable plate 402 to rotate in a direction that brings it closer to each other. Consequently, the fixed frame 305 drives the moving block 302 to move along the outside of the fixed rod 301 in a direction that brings them closer to each other, allowing the fixed insert block 304 to be inserted into the inside of the fixed slot 103, thus fixing the tool holder 101. Furthermore, when the mounting tool holder 2 drives the tool head 1 to rotate at high speed for operation, the two... The counterweight frame 401 has a centrifugal force that moves towards the inner wall of the movable cavity 204. The movable plate 402 further increases the force that brings the two moving blocks 302 closer to each other, thereby making the fixed insert 304 stably abut against the inner side of the fixed groove 103. This increases the stability between the positioning strip 102 and the mounting tool holder 2, prevents loosening, and improves safety. The counterweight frame 401, movable plate 402, fixed frame 305, and moving block 302 work together to achieve reinforcement when the milling cutter rotates at high speed.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tapered end mill, comprising a cutter head (1), a tool holder (101) fixedly connected to the top of the cutter head (1), and a mounting plate (2) for mounting the tool holder (101), characterized in that: Positioning strips (102) are fixedly connected to both sides of the handle (101). Fixing grooves (103) are provided on both the front and back of the handle (101). The mounting base (2) includes a base body (201). The bottom of the base body (201) has a mounting groove (202). The top of the inner wall of the mounting groove (202) has a movable cavity (204). A fixing component (3) is installed in the middle of the inner side of the movable cavity (204). Control components (4) are installed on both sides inside the movable cavity (204). A thrust component (5) is installed on the top of the control component (4). The fixing component (3) includes a fixing rod (301) fixedly connected to the inner wall of the movable cavity (204). The front and back sides of the outer side of the fixed rod (301) are movably fitted with movable blocks (302). The bottom of the movable block (302) is fixedly connected with a fixed plate (303). The surfaces of the two fixed plates (303) that are close to each other are fixedly connected with fixed inserts (304). The control component (4) includes control rods (403) movably fitted on both sides of the tool holder body (201). One end of the control rod (403) located inside the movable cavity (204) is fixedly connected with a counterweight frame (401). Movable plates (402) are installed on both ends of the counterweight frame (401) on the side away from the control rod (403). The other end of the control rod (403) is fixedly connected with a handle block (404).

2. The tapered end mill according to claim 1, characterized in that: The mounting groove (202) has positioning grooves (203) on both sides of its inner wall. The positioning grooves (203) are slidably connected to the positioning strip (102). The mounting groove (202) is compatible with the tool holder (101).

3. A tapered end mill according to claim 1, characterized in that: The fixing groove (103) and the fixing block (304) are adapted to each other, and the fixing block (304) has a chamfered edge on its four sides away from the fixing plate (303).

4. A tapered end mill according to claim 1, characterized in that: The fixing component (3) also includes a positioning rod (306) fixedly connected to the inside of the movable cavity (204). Both sides of the movable block (302) are fixedly connected to a fixing frame (305), and the fixing frame (305) is movably sleeved with the positioning rod (306).

5. A tapered end mill according to claim 4, characterized in that: The fixed frame (305) has a movable groove (351) on the side away from the movable block (302). A first connecting block (352) is fixedly connected to the inner side of the movable groove (351). The first connecting block (352) is movably connected to the end of the movable plate (402) away from the counterweight frame (401).

6. A tapered end mill according to claim 1, characterized in that: Both ends of the counterweight frame (401) are provided with connecting grooves (411), and a second connecting block (412) is fixedly connected to the inner side of the connecting groove (411). The second connecting block (412) is movably sleeved with the movable plate (402).

7. A tapered end mill according to claim 1, characterized in that: The thrust assembly (5) includes a cylindrical rod (501) fixedly connected to the inner wall of the movable cavity (204) and a movable block (502) fixedly connected to the top of the counterweight frame (401). The movable block (502) is movably sleeved with the cylindrical rod (501). A stop block (503) is fixedly sleeved on the outer side of the cylindrical rod (501). A pressure spring (504) is movably sleeved on the outer side of the cylindrical rod (501). The pressure spring (504) is located between the stop block (503) and the movable block (502).

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