A radially clamping and stable cutting tool

Abstract

This utility model discloses a radially clamping and stable cutting tool, relating to the field of cutting tool technology. It includes a cutting tool body, a clamping mechanism on the cutting tool, a positioning component, a clamping component rotatably mounted on the positioning component, a limiting component between the positioning component and the clamping component, and an anti-fall component at the lower end of the clamping component. This utility model achieves unidirectional locking and anti-loosening in the clamping state by adding a limiting component composed of a ratchet-pawl pair between the positioning component and the clamping component. This achieves the goal of maintaining a constant radial clamping force during high-speed, intermittent, or heavy-load cutting, and significantly reducing the risk of tool loosening due to vibration.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, specifically a radially clamping and stable cutting tool. Background Technology

[0002] Cutting tools are tools used in mechanical manufacturing for cutting processes. They are any tools used to remove certain materials from a workpiece through shearing deformation. The material of a cutting tool must be harder than the material being cut, and the tool must be able to withstand the heat and force generated during metal cutting. The structure of various tools consists of a clamping part and a working part.

[0003] Patent CN222470757U discloses a radially clamping and stable cutting tool. Compared with existing ordinary cutting tools, this radially clamping and stable cutting tool greatly improves the ease of installation and fixing. The disassembly and assembly operations can be completed by simply rotating it. Moreover, the tool holder is clamped and embedded in the radial direction at the four ends, which is synchronous and uniformly stressed. This makes the installation of the cutting tool body more precise, increases the uniformity and quality of cutting workpieces, and improves the use effect and practicality.

[0004] However, the aforementioned cutting tools still have certain problems in use. On the one hand, the lack of a limiting component between the mounting plate and the sleeve in the clamping mechanism results in insufficient clamping stability of the tool, making it prone to loosening due to vibration during use. On the other hand, the lack of a tool anti-fall component at the lower end of the clamping mechanism may lead to the tool falling during use, posing a significant safety hazard.

[0005] Based on this, a radially clamping and stable cutting tool is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0006] The purpose of this invention is to provide a radially clamping and stable cutting tool to solve the problems in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A radially clamping and stabilizing cutting tool includes a cutting tool body, a clamping mechanism on the cutting tool, a positioning component, a clamping component rotatably mounted on the positioning component, a limiting component between the positioning component and the clamping component, and an anti-fall component at the lower end of the clamping component.

[0009] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0010] In one alternative: the cutting tool body includes a tool holder, the lower end of the tool holder is provided with a tool head, the top end of the tool holder is provided with a cross protrusion, and four slots are symmetrically provided on the tool holder.

[0011] In one alternative: the positioning component includes a sleeve, the top of the sleeve is provided with a positioning groove, the side of the sleeve is symmetrically provided with four slots, and a ratchet is provided above the slots.

[0012] In one alternative embodiment: the clamping assembly includes a rotating seat rotatably connected to the sleeve, the rotating seat having an installation cavity, the installation cavity having four insert blocks, one end of each insert block being slidably installed in a slot, the other end of each insert block having a fixing post, the upper and lower ends of the fixing post being slidably installed in an arc-shaped groove opened on the rotating seat, and the upper end of the rotating seat having four symmetrical connecting seats.

[0013] In one alternative: the positioning groove matches the cross-shaped protrusion, the slot position matches the slot position, and the slot size matches the insert.

[0014] In one alternative: the limiting component includes a mounting groove disposed on a rotating seat, a pawl disposed in the mounting groove, a lever disposed on one side of the pawl, and the pawl being matched with a ratchet.

[0015] In one alternative: the fall arrestor assembly includes a movable cover hinged to the lower end of the rotating seat, the other end of the movable cover being bolted to the rotating seat, the movable cover having a groove, a strip-shaped slot on one side of the groove, and an elastic top block inside the groove.

[0016] In one alternative: the slot is perpendicular to the hinge end of the movable cover, and the width of the slot is greater than the diameter of the cutter head.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model achieves one-way locking and anti-loosening in the clamping state by adding a limiting component composed of a ratchet-pawl pair between the positioning component and the clamping component. This achieves the purpose of maintaining constant radial clamping force and significantly reducing the risk of tool loosening due to vibration during high-speed, intermittent or heavy-load cutting.

[0019] 2. This utility model forms a fall protection cavity that matches the outer diameter of the cutter head by hinged to an openable and closable movable cover at the lower end of the clamping assembly and setting an elastic top block and a strip groove inside the movable cover. This achieves the purpose of eliminating the safety hazards of equipment damage and personal injury caused by the cutter falling, even if the clamping mechanism fails unexpectedly. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the cutting tool body in this utility model.

[0022] Figure 3 This is a schematic diagram of the clamping component in this utility model.

[0023] Figure 4 This is a schematic diagram of the anti-fall component in this utility model.

[0024] Figure reference numerals: 100, Cutting tool body; 101, Tool holder; 102, Tool head; 103, Cross-shaped protrusion; 104, Slot; 200, Clamping mechanism; 300, Positioning assembly; 301, Sleeve; 302, Positioning groove; 303, Slot; 304, Ratchet; 400, Clamping assembly; 401, Rotating seat; 402, Mounting cavity; 403, Insert block; 404, Fixing post; 405, Arc groove; 406, Connecting seat; 500, Limiting assembly; 501, Mounting groove; 502, Pawl; 503, Pulley; 600, Anti-fall assembly; 601, Movable cover; 602, Groove; 603, Strip groove; 604, Elastic top block. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] In one embodiment, such as Figures 1-3 As shown, a radially clamping and stable cutting tool includes a cutting tool body 100, a clamping mechanism 200 on the cutting tool, a positioning component 300, a clamping component 400 rotatably mounted on the positioning component 300, a limiting component 500 between the positioning component 300 and the clamping component 400, and an anti-fall component 600 at the lower end of the clamping component 400. During installation, the cutting tool body 100 is mounted on the positioning component 300, and then the clamping component 400 clamps and fixes the cutting tool body 100, and limits the clamping component 400 to prevent the cutting tool body 100 from loosening during use. At the same time, the anti-fall component 600 prevents the cutting tool body 100 from falling during use.

[0027] In one embodiment, such as Figure 2As shown, the cutting tool body 100 includes a tool holder 101, a tool head 102 at the lower end of the tool holder 101, a cross protrusion 103 at the top end of the tool holder 101, and four slots 104 symmetrically arranged on the tool holder 101. In use, the cutting tool body 100 is positioned by matching the cross protrusion 103 with the positioning component 300, and the cutting tool body 100 is clamped and fixed by matching the clamping component 400 with the slots 104.

[0028] In one embodiment, such as Figure 3 As shown, the positioning component 300 includes a sleeve 301, a positioning groove 302 at the top of the sleeve 301, four symmetrical slots 303 on the side of the sleeve 301, a ratchet 304 above the slots 303, the positioning groove 302 matches the cross protrusion 103, the position of the slot 303 matches the position of the slot 104, and the size of the slot 303 matches the insert block 403. In use, the positioning of the cutting tool body 100 is achieved by matching the positioning groove 302 with the cross protrusion 103.

[0029] In one embodiment, such as Figure 3 As shown, the clamping assembly 400 includes a rotating seat 401 rotatably connected to the sleeve 301. The rotating seat 401 has a mounting cavity 402, and four insert blocks 403 are provided within the mounting cavity 402. One end of each insert block 403 is slidably mounted within a slot 303, and the other end of each insert block 403 has a fixing post 404. The upper and lower ends of the fixing post 404 are slidably mounted within arc-shaped grooves 405 formed on the rotating seat 401. Four connecting seats 406 are symmetrically provided on the upper end of the rotating seat 401. The limiting assembly 500 includes a mounting groove 501 provided on the rotating seat 401, and a pawl 502 is provided within the mounting groove 501. 2. A lever 503 is provided on one side, and a pawl 502 matches a ratchet 304. When in use, first install the handle 101 in the sleeve 301 and match the positioning groove 302 with the cross protrusion 103. Then rotate the rotating seat 401, and drive the insert 403 to slide along the slot 303 through the arc groove 405 and the fixed post 404, so that it is inserted into the slot 104. At the same time, the matching between the pawl 502 and the ratchet 304 realizes the restriction of the rotating seat 401 and prevents the rotating seat 401 from rotating in the opposite direction. When it is necessary to release the restriction, move the lever 503 to make the pawl 502 leave the ratchet 304.

[0030] In one embodiment, such as Figure 4As shown, the anti-fall component 600 includes a movable cover 601 hinged to the lower end of the rotating seat 401. The other end of the movable cover 601 is bolted to the rotating seat 401. The movable cover 601 has a groove 602, and a strip-shaped slot 603 is provided on one side of the groove 602. An elastic top block 604 is provided in the groove 602. The strip-shaped slot 603 is perpendicular to the hinged end of the movable cover 601. The width of the strip-shaped slot 603 is greater than the diameter of the cutting head 102. In use, the movable cover 601 is rotated to bolt the movable cover 601 to the rotating seat 401, and the elastic top block 604 presses the cutting handle 101, thereby improving the installation stability of the cutting tool body 100 and playing an anti-fall role.

[0031] The above embodiment discloses a radially clamping and stable cutting tool. In use, the tool holder 101 is first installed in the sleeve 301, and the positioning groove 302 is matched with the cross protrusion 103. Then, the rotating seat 401 is rotated, and the insert block 403 is driven to slide along the slot 303 through the arc groove 405 and the fixing post 404, so that it is inserted into the slot 104. At the same time, the matching between the pawl 502 and the ratchet 304 realizes the restriction effect on the rotating seat 401, preventing the rotating seat 401 from rotating in the opposite direction. Then, the movable cover 601 is rotated and bolted to the rotating seat 401, and the tool holder 101 is pressed by the elastic top block 604, thereby improving the installation stability of the cutting tool body 100.

[0032] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A radially clamping and stable cutting tool, comprising a cutting tool body (100), wherein the cutting tool is provided with a clamping mechanism (200), characterized in that, The clamping mechanism (200) includes a positioning component (300), on which a clamping component (400) is rotatably mounted. A limiting component (500) is provided between the positioning component (300) and the clamping component (400), and a fall protection component (600) is provided at the lower end of the clamping component (400).

2. The radially clamping and stable cutting tool according to claim 1, characterized in that, The cutting tool body (100) includes a tool holder (101), a tool head (102) is provided at the lower end of the tool holder (101), a cross protrusion (103) is provided at the top end of the tool holder (101), and four slots (104) are symmetrically provided on the tool holder (101).

3. A radially clamping and stable cutting tool according to claim 1, characterized in that, The positioning component (300) includes a sleeve (301), the top of the sleeve (301) is provided with a positioning groove (302), the sleeve (301) is provided with four symmetrical slots (303) on its side, and a ratchet (304) is provided above the slots (303).

4. A radially clamping and stable cutting tool according to claim 1, characterized in that, The clamping assembly (400) includes a rotating seat (401) rotatably connected to the sleeve (301). The rotating seat (401) has an installation cavity (402) and four insert blocks (403) in the installation cavity (402). One end of each insert block (403) is slidably installed in a slot (303), and the other end of each insert block (403) has a fixing post (404). The upper and lower ends of the fixing post (404) are slidably installed in an arc-shaped groove (405) opened on the rotating seat (401). Four connecting seats (406) are symmetrically provided on the upper end of the rotating seat (401).

5. A radially clamping and stable cutting tool according to claim 3, characterized in that, The positioning groove (302) matches the cross protrusion (103), the position of the slot (303) matches the position of the slot (104), and the size of the slot (303) matches the size of the insert (403).

6. A radially clamping and stable cutting tool according to claim 1, characterized in that, The limiting component (500) includes a mounting groove (501) provided on the rotating seat (401), a pawl (502) is provided in the mounting groove (501), a lever (503) is provided on one side of the pawl (502), and the pawl (502) matches the ratchet (304).

7. A radially clamping and stable cutting tool according to claim 1, characterized in that, The fall arrestor assembly (600) includes a movable cover (601) hinged to the lower end of the rotating seat (401), the other end of the movable cover (601) being bolted to the rotating seat (401), the movable cover (601) having a groove (602), a strip-shaped slot (603) on one side of the groove (602), and an elastic top block (604) inside the groove (602).

8. A radially clamping and stable cutting tool according to claim 7, characterized in that, The strip groove (603) is perpendicular to the hinge end of the movable cover (601), and the width of the strip groove (603) is greater than the diameter of the cutter head (102).

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