Cutting tool clamping mechanism

Abstract

The utility model discloses a cutting tool clamping mechanism which comprises a tool body, a rectangular groove is formed in the bottom of the tool body, a rectangular butt joint block is connected to the inner wall of the rectangular groove in a sliding mode, a positioning hole is formed in the outer wall of the rectangular butt joint block, a through hole is formed in the outer wall of the tool body, and a positioning column is connected to the inner wall of the through hole in a sliding mode. Limiting of the positioning column can be relieved by rotating the blocking piece through the T-shaped block, an old tool bit directly slides out, a new tool bit is installed, the tool body does not need to be disassembled, and tool changing time is remarkably shortened; the tool bit and the tool body are matched through the rectangular butt joint block and the rectangular groove, the positioning column and the blocking piece are combined for limiting, accurate butt joint and stable clamping are achieved, and the assembly process is simplified; the tool bit and the tool body can be replaced independently, overall disassembly of the tool body is avoided, and the machine tool utilization rate is increased; the T-shaped block, the blocking piece and the like are visual in structural design, dependence on special tools is reduced, and the technical requirement for operators is lowered.

Description

TECHNICAL FIELD

[0001] The utility model relates to cutting tool technical field especially relates to a cutting tool clamping mechanism. BACKGROUND

[0002] Cutting tool is the tool used for cutting processing in mechanical manufacturing, its main function is to remove the material on the workpiece through cutting movement to form the shape and size required. Cutting tool is usually made of material harder than the material being processed, such as hard alloy, ceramic, high speed steel, etc. These materials can withstand the high temperature and high pressure generated in the metal cutting process. Cutting tool will be subjected to large cutting force in the processing process, these forces will be transmitted to the clamping positioning surface between the blade and the tool body through the tool tip, so the tool needs to be clamped stably.

[0003] In the prior art, the installation and maintenance process of the tool can be relatively cumbersome. For example, when replacing the tool, the old tool needs to be disassembled and the new tool needs to be installed, which may take a long time, mainly because the tool is installed in multiple components, therefore we propose a cutting tool clamping mechanism to solve the above problems. SUMMARY

[0004] The utility model aims at solving the shortcomings existing in the prior art and proposes a cutting tool clamping mechanism.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A cutting tool clamping mechanism, including the tool body, the bottom of the tool body is provided with a rectangular groove, the inner wall of the rectangular groove is slidably connected with a rectangular butt joint block, the outer wall of the rectangular butt joint block is provided with a positioning hole, the outer wall of the tool body is provided with a through hole, the inner wall of the through hole is slidably connected with a positioning column, the bottom of the rectangular butt joint block is fixedly connected with a tool head, the outer wall of the tool body and the tool head is provided with a flow channel, the outer wall of the tool head is fixedly connected with a T-shaped column, the outer wall of the T-shaped column is rotatably sleeved with a positioning sheet, the outer wall of the positioning sheet is provided with a butt joint hole, the outer wall of the tool head is provided with a tool groove, the inner wall of the tool groove is placed with a tool body, the outer wall of the tool body and the inner wall of the tool groove are provided with a mounting hole, the inner wall of the mounting hole is threadedly connected with a locking bolt, the outer wall of the locking bolt is slidably connected with the inner wall of the butt joint hole, the outer wall of the tool body is provided with a clamping assembly.

[0007] Preferably, the clamping assembly includes two T-shaped blocks, the outer wall of the tool body is provided with two arc grooves, the inner walls of the two arc grooves are respectively fixedly connected with one end of the two T-shaped blocks, the outer walls of the two T-shaped blocks are rotatably sleeved with a baffle, the outer walls of the two T-shaped blocks are sleeved with a torsional spring, the positioning column is positioned at both ends by the clamping assembly, so as to fix the position of the rectangular butt joint block.

[0008] Preferably, the top of the cutter body is provided with a threaded hole, the inner wall of the threaded hole is threadedly connected with a joint, the top of the joint is fixedly connected with a cooling liquid pipe, the cooling liquid pipe is connected with an existing pump body, and the cooling liquid from the outside is delivered to the flow channel through the pump body.

[0009] Preferably, the outer wall of the cutter body is uniformly provided with a plurality of assembly holes.

[0010] Preferably, the outer wall of the positioning column is in contact with the inner wall of the positioning hole, and the rectangular butt joint block is limited in the rectangular groove after the positioning column slides into the positioning hole.

[0011] Preferably, one end of the torsion spring is fixedly connected with the outer wall of the T-shaped block, the other end of the torsion spring is fixedly connected with the outer wall of the baffle, and the two baffles are located at the two ends of the positioning column through the elastic force of the two torsion springs.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] The old cutter head can be directly slid out and the new cutter head can be installed without disassembling the cutter body, the cutter head and the cutter body are matched through the rectangular butt joint block and the rectangular groove, the positioning column and the baffle are limited, precise butt joint and stable clamping are realized, and the assembly process is simplified, the cutter head and the cutter body can be independently replaced, the cutter body is avoided from being disassembled as a whole, the utilization rate of the machine tool is improved, the T-shaped block, the baffle and other structures are directly designed, the dependence on special tools is reduced, and the technical requirements for the operator are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the utility model, the following will be briefly introduced the drawings needed to be used in the specific implementation manner, obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled person in the art, other drawings can be obtained according to these drawings without creating the creative labor.

[0015] Figure 1 It is a three-dimensional structure schematic view of the cutting tool clamping mechanism proposed in the utility model;

[0016] Figure 2 It is a sectional structure schematic view of the cutting tool clamping mechanism proposed in the utility model;

[0017] Figure 3 It is a sectional structure schematic view of the cutting tool clamping mechanism proposed in the utility model; Figure 2 A part of the enlarged structure schematic view in the utility model;

[0018] Figure 4 This is a partial cross-sectional structural diagram of a cutting tool clamping mechanism proposed in this utility model.

[0019] In the diagram: 1. Tool body; 2. Connector; 3. Coolant pipe; 4. Flow channel; 5. Assembly hole; 6. Rectangular mating block; 7. Positioning post; 8. Tool head; 9. T-post; 10. Positioning plate; 11. Tool body; 12. Locking bolt; 13. T-block; 14. Torsion spring; 15. Baffle. Detailed Implementation

[0020] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Depend on Figures 1-4 As shown, a cutting tool clamping mechanism is disclosed, including a tool body 1. A threaded hole is provided on the top of the tool body 1, and a connector 2 is threadedly connected to the inner wall of the threaded hole. A coolant pipe 3 is fixedly connected to the top of the connector 2. Multiple assembly holes 5 are evenly provided on the outer wall of the tool body 1, and the tool body 1 is fixed to the spindle of an existing machine tool through the multiple assembly holes 5.

[0022] A rectangular groove is provided at the bottom of the blade body 1. A rectangular mating block 6 is slidably connected to the inner wall of the rectangular groove. The rectangular groove and the rectangular mating block 6 cooperate to limit the blade head 8 on the blade body 1. A positioning hole is provided on the outer wall of the rectangular mating block 6. A through hole is provided on the outer wall of the blade body 1. A positioning post 7 is slidably connected to the inner wall of the through hole. The outer wall of the positioning post 7 contacts the inner wall of the positioning hole. The positioning post 7 prevents the rectangular mating block 6 from moving outward.

[0023] A cutter head 8 is fixedly connected to the bottom of the rectangular docking block 6. Flow channels 4 are opened on the outer walls of both the cutter body 1 and the cutter head 8. A T-shaped post 9 is fixedly connected to the outer wall of the cutter head 8. A positioning piece 10 is rotatably sleeved on the outer wall of the T-shaped post 9. A docking hole is opened on the outer wall of the positioning piece 10. A cutter groove is opened on the outer wall of the cutter head 8. A cutter body 11 is placed on the inner wall of the cutter groove. The cutter groove and the cutter body 11 cooperate. The positioning piece 10 limits the side of the cutter body 11 to prevent it from sliding out of the cutter groove.

[0024] The outer wall of the tool body 11 and the inner wall of the tool groove are both provided with mounting holes. The inner wall of the mounting hole is threaded with a locking bolt 12. The outer wall of the screw head of the locking bolt 12 is slidably connected to the inner wall of the mating hole. The locking bolt 12 fixes the tool body 11 in the tool groove.

[0025] The outer wall of the cutter body 1 is provided with a clamping assembly, the clamping assembly comprises two T-shaped blocks 13, two arc-shaped grooves are formed in the outer wall of the cutter body 1, and the inner walls of the two arc-shaped grooves are fixedly connected with one end of the two T-shaped blocks 13 respectively, the outer walls of the two T-shaped blocks 13 are rotatably sleeved with a baffle 15, the baffle 15 rotates through the T-shaped block 13, the outer walls of the two T-shaped blocks 13 are sleeved with a torsional spring 14, one end of the torsional spring 14 is fixedly connected with the outer wall of the T-shaped block 13, the other end of the torsional spring 14 is fixedly connected with the outer wall of the baffle 15, and the baffle 15 cannot rotate under the elastic force of the torsional spring 14 without external force.

[0026] Working principle: in use, the cutter body 1 is fixed on the existing machine tool spindle through the plurality of assembly holes 5, and when the tool bit 8 is replaced, the two baffles 15 are only needed to be rotated through the T-shaped block 13, the positioning column 7 is exposed after the two baffles 15 are rotated outward, the positioning column 7 is then ejected from the positioning hole, the position fixing of the rectangular butt joint block 6 is released, the tool bit 8 is then slid out of the cutter body 1, the cutter body 1 does not need to be disassembled from the machine tool spindle, the new tool bit 8 and the tool body 11 are inserted into the rectangular groove through the rectangular butt joint block 6, the positioning column 7 is inserted into the positioning hole, the two baffles 15 are rotated to limit the two ends of the positioning column 7, and the clamping and limiting of the rectangular butt joint block 6 are completed; when the old tool body 11 is replaced subsequently, the tool body 11 and the positioning piece 10 are released from the position fixing by rotating the locking bolt 12, the positioning piece 10 is rotated through the T-shaped column 9 and is rotated outward, the tool body 11 is no longer limited from the side, and the tool body 11 is taken out of the tool groove.

[0027] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt the conventional types in the prior art, the circuit connection adopts the conventional connection mode in the prior art, and details are not described herein, and the components known by the person skilled in the art are known or obtained through conventional experimental methods.

[0028] Although the embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the above-described embodiments, since the above-described embodiments can be modified in various ways, and substituted and changed, without departing from the spirit and scope of the application. The scope of the application is defined by the appended claims and their equivalents.

Claims

1. A cutting tool clamping mechanism comprising a tool body (1), characterized in that, The bottom of the cutter body (1) is provided with a rectangular recess, and the inner wall of the rectangular recess is slidably connected with a rectangular butt joint block (6). The outer wall of the rectangular butt joint block (6) is provided with a positioning hole. The outer wall of the cutter body (1) is provided with a through hole, and the inner wall of the through hole is slidably connected with a positioning column (7). The bottom of the rectangular butt joint block (6) is fixedly connected with a tool bit (8). The outer walls of the cutter body (1) and the tool bit (8) are both provided with flow channels (4). The outer wall of the tool bit (8) is fixedly connected with a T-shaped column (9). The outer wall of the T-shaped column (9) is rotatably sleeved with a positioning sheet (10). The outer wall of the positioning sheet (10) is provided with a butt joint hole. The outer wall of the tool bit (8) is provided with a tool groove. The inner wall of the tool groove is placed with a tool body (11). The outer wall of the tool body (11) and the inner wall of the tool groove are both provided with mounting holes. The inner wall of the mounting hole is threadedly connected with a locking bolt (12). The outer wall of the locking bolt (12) is slidably connected with the inner wall of the butt joint hole. The outer wall of the cutter body (1) is provided with a clamping assembly.

2. A cutting tool holder according to claim 1, c h a r a c t e r i z e d in that The clamping assembly comprises two T-shaped blocks (13). The outer wall of the cutter body (1) is provided with two arc-shaped recesses. The inner walls of the two arc-shaped recesses are respectively fixedly connected with one end of the two T-shaped blocks (13). The outer walls of the two T-shaped blocks (13) are both rotatably sleeved with a baffle (15). The outer walls of the two T-shaped blocks (13) are both sleeved with a torsional spring (14).

3. A cutting tool holder according to Claim 1, wherein The top of the cutter body (1) is provided with a threaded hole. The inner wall of the threaded hole is threadedly connected with a connector (2). The top of the connector (2) is fixedly connected with a cooling liquid pipe (3).

4. A cutting tool holder according to Claim 1, wherein The outer wall of the cutter body (1) is uniformly provided with a plurality of assembly holes (5).

5. A cutting tool holder according to Claim 1, wherein The outer wall of the positioning column (7) is in contact with the inner wall of the positioning hole.

6. A cutting tool holder according to Claim 2, wherein One end of the torsional spring (14) is fixedly connected with the outer wall of the T-shaped block (13). The other end of the torsional spring (14) is fixedly connected with the outer wall of the baffle (15).

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