Cutting tool stable in radial clamping

Abstract

The utility model discloses a cutting tool with stable radial clamping, which relates to the technical field of cutting tools and comprises a tool handle, a ring sleeve is fixedly mounted on the outer surface of the tool handle, four slots are uniformly distributed on the periphery of the surface of the ring sleeve, and a clamping mechanism is arranged on the outer side of the tool handle. The clamping mechanism comprises a mounting plate arranged above the outer side of the cutter handle in a sleeving mode, a sleeve is rotationally arranged in the middle of the inner surface of the mounting plate in a penetrating mode through a bearing, and guide grooves corresponding in an up-and-down mode are evenly formed in the positions, located on the periphery of the sleeve, of the upper side and the lower side of the outer surface of the mounting plate. Compared with an existing common cutting tool, the cutting tool stably clamped in the radial direction has the advantages that mounting and fixing operation convenience is greatly improved, dismounting and mounting operation can be completed through simple rotation, synchronous and uniform-stress clamping, embedding and fixing are conducted on the radial positions of the four end points of the tool handle, the cutting tool body is more accurately mounted, and the cutting tool is more convenient to use. And the uniformity and quality of cut workpieces are improved, and the using effect and practicability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting tools, in particular to a cutting tool with stable radial clamping. Background Art

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

[0003] For example, the public document with application number 202222363304.7 discloses a cutting tool with stable installation. The utility model realizes the stable installation of the cutting tool, improves the support effect of the tool bar, reduces the occurrence of deformation of the cutting tool under stress, makes the cutting more precise, and significantly improves the use effect. However, the cutting tool still uses bolts to fix a single side of the cutting tool, so that the stress of the other sides of the cutting tool being pushed and fitted by the bolts and the groove body is difficult to ensure high uniformity. When the cutting tool rotates and mills, the different forces on each side will cause the cutting tool to slightly deviate, resulting in a certain cutting error, making it difficult to ensure the stability of the cutting tool and the quality of cutting.

[0004] Therefore, in view of this, the shortcomings of the existing structure are studied and improved, and a cutting tool with radially stable clamping is proposed. Utility Model Content

[0005] The utility model aims to provide a cutting tool with stable radial clamping to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a radially clamped stable cutting tool, comprising a shank, a ring sleeve is fixedly installed on the outer surface of the shank, four slots are evenly distributed around the surface of the ring sleeve, and a clamping mechanism is arranged on the outer side of the shank.

[0007] Preferably, the clamping mechanism includes a mounting plate sleeved on the upper outer side of the knife handle, a sleeve is provided in the middle of the inner surface of the mounting plate and is rotatably penetrated by a bearing, and guide grooves corresponding to each other are evenly distributed in pairs on the upper and lower sides of the outer surface of the mounting plate around the sleeve, a limit rod is slidably penetrated inside the guide groove, an insert plate is rotatably provided in the middle of the opposite end of the limit rod by a rotating shaft, and four limit cavities are evenly distributed on the surface of the sleeve inside the mounting plate, and the insert plate slides through the limit cavity.

[0008] Preferably, the guide groove is in the shape of an arc groove, and the guide groove is inclined from the edge of the mounting plate to the center of the mounting plate.

[0009] Preferably, a cross protrusion is fixedly mounted on the top of the handle, and a recessed groove is provided below the inner surface of the sleeve.

[0010] Preferably, a through cavity is opened above the inner surface of the sleeve, and the shape of the through cavity matches the shape of the cross protrusion.

[0011] Preferably, four connecting ears are evenly distributed and fixedly installed around the outer surface of the mounting plate, and a threaded hole is opened through the middle of the surface of the connecting ear, which is connected to the transmission mounting seat by bolts.

[0012] Preferably, a cutting blade body is provided at the bottom end of the blade handle, and the cutting blade body and the blade handle can be disassembled and replaced.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model is provided with a ring sleeve, a slot, a clamping mechanism, a mounting plate, a sleeve, a guide groove, a limiting rod, a plug plate and a limiting cavity. The tool handle is inserted into the interior of the sleeve, and the outer mounting plate is rotated. Under the limitation of the guide groove and the limiting cavity, the limiting rod is pushed obliquely by the guide groove to slide, thereby gradually pushing the four plug plates to extend toward the middle of the sleeve, so that the plug plates are inserted into the slot of the ring sleeve, and the cutting tool body can be fixed from the radial four end points of the cylindrical tool handle, which greatly improves the convenience of installation and fixing. The disassembly and assembly operation can be completed by simply rotating, and the radial four end points of the tool handle are synchronously clamped, embedded and fixed, so that the cutting tool body is installed more accurately, the uniformity and quality of the cutting workpiece are increased, and the use effect and practicality are improved;

[0015] 2. The utility model provides a cross protrusion, a recessed groove, a through cavity and a connecting ear, and through the matching insertion of the cross protrusion and the through cavity, so that when the tool handle is inserted into the recessed groove, the slot can be quickly and accurately aligned with the position of the plug plate, without the need for manual rotation to correct the insertion position, thereby further improving the convenience of the installation operation. At the same time, after installation, the connecting ear and the bolt are screwed and fixed to the transmission mechanism component of the milling device, so that the position of the mounting plate can be fixed, and the internal tool handle and sleeve can be synchronously fixed in the position through the restriction of the plug plate passing through the limit cavity, that is, the mounting plate and the sleeve can be synchronously fixed in position, so that the cutting tool body can be stably transmitted during the rotating cutting operation, and the mounting plate is fixed and cannot be rotated a second time, so that the plug plate can be stably inserted into the slot, that is, the tool handle is stably clamped and fixed, effectively preventing the tool handle from loosening and falling off, and greatly improving the firmness of the installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall installation structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the disassembly structure of the tool handle of the clamping mechanism of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the mounting plate of the utility model viewed from above;

[0019] Figure 4 It is a schematic diagram of the front cross-sectional structure of the mounting plate of the utility model.

[0020] In the figure: 1, tool handle; 2, ring sleeve; 3, slot; 4, clamping mechanism; 401, mounting plate; 402, sleeve; 403, guide groove; 404, limit rod; 405, plug plate; 406, limit cavity; 5, cross protrusion; 6, sink groove; 7, through cavity; 8, connecting ear; 9, cutting tool body. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-Figure 4 As shown, a radially clamping stable cutting tool comprises a tool handle 1, a ring sleeve 2 is fixedly mounted on the outer surface of the tool handle 1, four slots 3 are evenly distributed around the surface of the ring sleeve 2, a clamping mechanism 4 is arranged on the outer side of the tool handle 1, the clamping mechanism 4 comprises a mounting plate 401 sleeved on the upper outer side of the tool handle 1, a sleeve 402 is rotatably penetrated through the middle of the inner surface of the mounting plate 401 through a bearing, guide grooves 403 corresponding to each other are evenly distributed in pairs on the upper and lower sides of the outer surface of the mounting plate 401 around the sleeve 402, a limiting rod 404 is slidably penetrated inside the guide groove 403, a plug plate 405 is rotatably arranged in the middle of the opposite end of the limiting rod 404 through a rotating shaft, and the surface of the sleeve 402 is evenly distributed inside the mounting plate 401. Four limiting cavities 406, and the insert plate 405 slides through the limiting cavity 406, the shape of the guide groove 403 is set as an arc groove, and the guide groove 403 is set obliquely from the edge of the mounting plate 401 to the center of the mounting plate 401, the top of the handle 1 is fixedly installed with a cross protrusion 5, and a sink groove 6 is set below the inner surface of the sleeve 402, and a through cavity 7 is set above the inner surface of the sleeve 402, and the shape of the through cavity 7 matches the shape of the cross protrusion 5. Four connecting ears 8 are evenly distributed and fixedly installed around the outer surface of the mounting plate 401, and a threaded hole is set through the middle of the surface of the connecting ear 8, which is connected to the transmission mounting seat by bolts, and a cutting tool body 9 is set at the bottom of the handle 1, and the cutting tool body 9 and the handle 1 can be disassembled and replaced. 。

[0023] Furthermore, the cross protrusion 5 matches the shape of the through cavity 7, so that when the handle 1 is inserted, the slot 3 can be quickly and accurately aligned with the insert plate 405 without manual rotation to correct the insertion position.

[0024] Furthermore, the opening space of the sink groove 6 matches the size of the ring sleeve 2 , ensuring that the shank 1 can fit the sink groove 6 and be stably inserted into the sink groove 6 .

[0025] Furthermore, the length, width and height of the plug board 405 match the slot 3. When the plug board 405 is inserted into the slot 3, it can fit the inner surface of the slot 3 without leaving any gap, thereby making the installation error gap smaller and the installation more precise.

[0026] Furthermore, the guide groove 403 is inclined from the edge of the mounting plate 401 toward the center, and the guide groove 403 is an arc groove. When the mounting plate 401 rotates, the arc slope is used to gradually move the center of the mounting plate 401 through the limit rod 404 to push the plug plate 405, or rotate in the opposite direction to pull the plug plate 405, so as to control the fixation or loosening of the tool handle 1.

[0027] Furthermore, the mounting plate 401 and the sleeve 402 rotate with the aid of a bearing, and when the mounting plate 401 rotates the control plug plate 405 , the internal sleeve 402 and the shank 1 are not affected.

[0028] Furthermore, after the connecting ear 8 is assembled with the transmission seat by means of bolts, the position of the mounting plate 401 is fixed and cannot be rotated further, thereby fixing the position of the plug plate 405 so that the connection between the plug plate 405 and the slot 3 will not become loose.

[0029] Working principle: When using the radially clamped stable cutting tool, first, after selecting the required cutting tool body 9 and the tool handle 1 for assembly, the tool handle 1 is inserted into the sink groove 6, and the cross protrusion 5 is inserted into the position corresponding to the through cavity 7, and then the corresponding positions of the slot 3 and the insert plate 405 are automatically calibrated, and then the mounting plate 401 is rotated, and under the oblique arc pushing of the guide groove 403, the limit rod 404 will drive the insert plate 405 to move to the middle of the sleeve 402, insert it into the slot 3, and then fix the tool handle 1, and radially clamp and fix the cutting tool body 9 and the tool handle 1 as a whole. Then, the bolts are screwed through the connecting ears 8 to fix them with the equipment transmission mounting seat, so that the position of the mounting plate 401 is fixed, so that the mounting plate 401 cannot be rotated for a second time to adjust the position of the plug plate 405, and the tool handle 1 is firmly fixed. The internal sleeve 402 uses the position of the plug plate 405 to penetrate the limit cavity 406 at this time to maintain transmission unity with the mounting plate 401, ensuring the uniformity and stability of the rotational kinetic energy transmission of the entire cutting tool body 9, and then completing the stable rotation cutting work. This is the working principle of the radially clamped stable cutting tool.

Claims

1. A radially clamped stable cutting tool, comprising a tool holder (1), characterized in that: The outer surface of the knife handle (1) is fixedly mounted with a ring sleeve (2), and the surface of the ring sleeve (2) is evenly distributed with four slots (3). The outer side of the knife handle (1) is provided with a clamping mechanism (4), and the clamping mechanism (4) comprises a mounting plate (401) sleeved on the upper outer side of the knife handle (1), a sleeve (402) is rotatably penetrated through the middle of the inner surface of the mounting plate (401) via a bearing, and upper and lower sides of the outer surface of the mounting plate (401) are evenly distributed around the sleeve (402) with upper and lower corresponding guide grooves (403) A limit rod (404) is slidably provided inside the guide groove (403), and a plug plate (405) is rotatably provided at the middle of the opposite end of the limit rod (404) through a rotating shaft. The surface of the sleeve (402) is located inside the mounting plate (401) and is provided with four limit cavities (406) evenly distributed, and the plug plate (405) slides through the limit cavities (406). The shape of the guide groove (403) is an arc groove, and the guide groove (403) is obliquely opened from the edge of the mounting plate (401) to the center of the mounting plate (401).

2. A radially clamped stable cutting tool according to claim 1, characterized in that: A cross protrusion (5) is fixedly mounted on the top of the knife handle (1), and a recessed groove (6) is provided below the inner surface of the sleeve (402).

3. A radially clamped stable cutting tool according to claim 1, characterized in that: A through cavity (7) is provided above the inner surface of the sleeve (402), and the shape of the through cavity (7) matches the shape of the cross protrusion (5).

4. A radially clamped stable cutting tool according to claim 1, characterized in that: Four connecting ears (8) are evenly distributed and fixedly installed around the outer surface of the mounting plate (401), and a threaded hole is opened through the middle of the surface of the connecting ear (8) to connect with the transmission mounting seat by bolts.

5. A radially clamped stable cutting tool according to claim 1, characterized in that: A cutting blade body (9) is provided at the bottom end of the blade handle (1), and the cutting blade body (9) and the blade handle (1) can be disassembled and replaced.

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