Tool bit clamping mechanism of numerical control machining center

Abstract

The utility model relates to the technical field of clamping mechanisms, and discloses a tool bit clamping mechanism of a numerical control machining center, the tool bit clamping mechanism of the numerical control machining center comprises a tool body, a mounting assembly is arranged at the end part of the tool body, in order to enable equipment to replace a tool more quickly, the end part of the tool body is clamped into the mounting assembly, and the tool body is clamped into the mounting assembly. The position of a limiting groove corresponds to the position of a placement groove, at the moment, a motor is started to enable a threaded rod to rotate, and a pressing block is limited by the placement groove and moves towards the cutter body, so that an arc-shaped inclined surface arranged at the side part of the pressing block can be in contact with the inner wall of the limiting groove, and the pressing block upwards extrudes the cutter body; and when the tool body is mounted into the mounting piece, the embedding block is clamped into the embedding groove, so that the tool body can be better driven to rotate when the mounting piece rotates.

Description

Technical Field

[0001] This utility model relates to the field of clamping mechanism technology, specifically a tool head clamping mechanism for CNC machining centers. Background Technology

[0002] Machining centers evolved from CNC milling machines. The biggest difference between them and CNC milling machines is that machining centers have the ability to automatically change machining tools. By installing tools for different purposes on the tool magazine, the machining tools on the spindle can be changed in a single setup via an automatic tool changer.

[0003] According to a public notice (No. CN214264684U) of a tool head clamping mechanism for a CNC machining center, the clamping mechanism is aligned with the tool head to be replaced. Then, the cylinder extends, causing the abutment at the end of the cylinder output shaft to slide downward to the lower end of the gap. At this time, multiple clamping plates abut against the spring, causing the jaws to open and inserting the tool head into the jaws. Finally, the cylinder retracts, causing the abutment at the end of the cylinder output shaft to slide upward to the upper end of the gap. At this time, the spring retracts, the multiple clamping plates reset, causing the jaws to retract and clamp the tool head.

[0004] However, in actual use, when the above-mentioned equipment needs to change the cutting head during the processing of the product, the sleeve must be removed first before the cutting tool can be replaced. This replacement method is inefficient and can easily affect the processing speed of the product. In view of this, we propose a cutting head clamping mechanism for CNC machining centers. Utility Model Content

[0005] The purpose of this utility model is to provide a tool holder mechanism for CNC machining centers to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tool head clamping mechanism for a CNC machining center, comprising a tool body, wherein a mounting assembly is provided at the end of the tool body, and the mounting assembly includes:

[0007] The mounting component is sleeved on the end of the tool body, and the inner wall of the mounting component has a placement groove. A motor is fixedly connected to the side of the mounting component.

[0008] A threaded rod is fixedly connected to the output end of the motor, and a pressing block is threadedly connected to the outer surface of the threaded rod. A limit groove is formed on the outer surface of the cutter body.

[0009] Preferably, the pressing block is disposed inside the placement groove, and the side of the pressing block is provided with an inclined arc surface, and a protruding strip is provided on the inclined arc surface, which increases the friction between the pressing block and the limiting groove.

[0010] Preferably, the inner wall of the limiting groove is inclined, and the inclined surface is provided with a groove. The position of the limiting groove corresponds to the position of the pressing block, which allows the pressing block to be well inserted into the limiting groove.

[0011] Preferably, the center of the motor corresponds to the center of the placement slot, and the position of the threaded rod corresponds to the center of the pressing block, which makes the pressing block more evenly stressed.

[0012] Preferably, the inner wall of the mounting component is provided with an auxiliary component, the auxiliary component including an embedding block, the embedding block being fixedly connected to the top of the inner wall of the mounting component, the inner wall of the mounting component having a fixing groove, the outer surface of the tool body having a fixing block fixedly connected near the end, and the end of the tool body having an embedding groove.

[0013] Preferably, the embedding block is arranged in a cross shape, the position of the embedding block corresponds to the position of the embedding groove, and the position of the fixing block corresponds to the position of the fixing groove.

[0014] Compared with the prior art, this utility model provides a tool holder mechanism for CNC machining centers, which has the following advantages:

[0015] 1. The tool holder mechanism of this CNC machining center, in order to enable the equipment to change tools more quickly, inserts the end of the tool body into the mounting part, so that the position of the limiting groove corresponds to the position of the placement groove. At this time, the motor starts and the threaded rod rotates. Then, the pressing block passes the limit of the placement groove and moves towards the tool body. This allows the arc-shaped inclined surface on the side of the pressing block to contact the inner wall of the limiting groove, thereby pressing the tool body upward and enabling the tool body to be quickly limited.

[0016] 2. The tool holder mechanism of this CNC machining center, in order to increase the friction between the tool and the mounting part, has the position of the insert block corresponding to the position of the insert groove when the tool body is installed into the mounting part. In this way, after the tool body is installed into the mounting part, the insert block is locked into the insert groove, so that when the mounting part rotates, it can better drive the tool body to rotate. At the same time, when the insert block is locked into the insert groove, the fixing block is locked into the fixing groove, which further increases the friction between the tool body and the mounting part, allowing the tool body to better process the product. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional left-side structure of this utility model;

[0018] Figure 2 This is an exploded view of the present invention;

[0019] Figure 3This is a cross-sectional view of the mounting component of this utility model;

[0020] Figure 4 This is a schematic diagram of the pressing block structure of this utility model.

[0021] In the figure: 1. Tool body; 2. Mounting assembly; 201. Mounting part; 202. Placement slot; 203. Motor; 204. Threaded rod; 205. Pressing block; 206. Limiting slot; 3. Auxiliary assembly; 301. Fixing slot; 302. Embedding block; 303. Fixing block; 304. Embedding slot. Detailed Implementation

[0022] like Figures 1-4 As shown, this utility model provides a technical solution: a tool head clamping mechanism for a CNC machining center, including a tool body 1, with an installation component 2 provided at the end of the tool body 1. The installation component 2 includes an installation part 201, a placement groove 202, a motor 203, a threaded rod 204, a pressing block 205, and a limiting groove 206.

[0023] In this embodiment of the utility model, the mounting member 201 is sleeved on the end of the tool body 1. A placement groove 202 is provided on the inner wall of the mounting member 201. A motor 203 is fixedly connected to the side of the mounting member 201, with the center of the motor 203 corresponding to the center of the placement groove 202. A threaded rod 204 is fixedly connected to the output end of the motor 203, with the position of the threaded rod 204 corresponding to the center of the pressing block 205. This makes the pressing block 205 experience more even force. A pressing rod is threaded onto the outer surface of the threaded rod 204. The pressing block 205 is set inside the placement groove 202. The side of the pressing block 205 is set with an inclined arc surface and a protrusion is provided on the inclined arc surface. This increases the friction between the pressing block 205 and the limiting groove 206. The limiting groove 206 is opened on the outer surface of the tool body 1. The inner wall of the limiting groove 206 is set with an inclined shape and a groove is provided on the inclined surface. The position of the limiting groove 206 corresponds to the position of the pressing block 205, which allows the pressing block 205 to be well inserted into the limiting groove 206.

[0024] Meanwhile, an auxiliary component 3 is provided on the inner wall of the mounting component 201. The auxiliary component 3 includes an insert block 302, which is fixedly connected to the top of the inner wall of the mounting component 201. The insert block 302 is arranged in a cross shape, and its position corresponds to the position of the insert groove 304. A fixing groove 301 is provided on the inner wall of the mounting component 201. A fixing block 303 is fixedly connected to the outer surface of the tool body 1 near the end, and its position corresponds to the position of the fixing groove 301. An insert groove 304 is provided at the end of the tool body 1, so that the tool body 1 can be installed into... When the mounting component 201 is installed inside, the position of the insert block 302 corresponds to the position of the insert groove 304. In this way, after the tool body 1 is installed inside the mounting component 201, the insert block 302 is engaged in the insert groove 304. This allows the mounting component 201 to rotate more effectively, thereby driving the tool body 1 to rotate. At the same time, when the insert block 302 is engaged in the insert groove 304, the fixing block 303 is engaged in the fixing groove 301. This increases the friction between the tool body 1 and the mounting component 201, allowing the tool body 1 to process the product better.

[0025] In this utility model, during use, the end of the tool body 1 is inserted into the mounting part 201, so that the position of the limiting groove 206 corresponds to the position of the placement groove 202. At this time, the motor 203 starts to rotate the threaded rod 204, which causes the pressing block 205 to pass through the limiting of the placement groove 202 and move towards the tool body 1. This allows the arc-shaped inclined surface on the side of the pressing block 205 to contact the inner wall of the limiting groove 206, thereby allowing the pressing block 205 to press the tool body 1 upward, so that the tool body 1 can be quickly limited.

[0026] Furthermore, when the tool body 1 is installed into the mounting component 201, the position of the insert block 302 corresponds to the position of the insert groove 304. In this way, after the tool body 1 is installed into the mounting component 201, the insert block 302 is engaged in the insert groove 304, so that when the mounting component 201 rotates, it can better drive the tool body 1 to rotate. At the same time, when the insert block 302 is engaged in the insert groove 304, the fixing block 303 is engaged in the fixing groove 301, thereby increasing the friction between the tool body 1 and the mounting component 201, allowing the tool body 1 to better process the product.

[0027] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A tool holder mechanism for a CNC machining center, comprising a tool body (1), characterized in that: The tool body (1) is provided with a mounting assembly (2) at its end, the mounting assembly (2) including: Mounting component (201) is sleeved on the end of the tool body (1). The inner wall of the mounting component (201) is provided with a placement groove (202). A motor (203) is fixedly connected to the side of the mounting component (201). A threaded rod (204) is fixedly connected to the output end of a motor (203). A pressing block (205) is threadedly connected to the outer surface of the threaded rod (204). A limit groove (206) is formed on the outer surface of the tool body (1).

2. The tool holder mechanism for a CNC machining center according to claim 1, characterized in that: The pressing block (205) is disposed inside the placement groove (202). The side of the pressing block (205) is arranged with an inclined arc surface, and a protrusion is provided on the inclined arc surface.

3. The tool holder mechanism for a CNC machining center according to claim 1, characterized in that: The inner wall of the limiting groove (206) is inclined, and the inclined surface is provided with a groove. The position of the limiting groove (206) corresponds to the position of the pressing block (205).

4. The tool holder mechanism for a CNC machining center according to claim 1, characterized in that: The center of the motor (203) corresponds to the center of the placement slot (202), and the position of the threaded rod (204) corresponds to the center of the pressing block (205).

5. The tool holder mechanism for a CNC machining center according to claim 1, characterized in that: An auxiliary component (3) is provided on the inner wall of the mounting component (201). The auxiliary component (3) includes an embedding block (302). The embedding block (302) is fixedly connected to the top of the inner wall of the mounting component (201). A fixing groove (301) is provided on the inner wall of the mounting component (201). A fixing block (303) is fixedly connected to the outer surface of the tool body (1) near the end. An embedding groove (304) is provided at the end of the tool body (1).

6. The tool holder mechanism for a CNC machining center according to claim 5, characterized in that: The embedding block (302) is arranged in a cross shape, and the position of the embedding block (302) corresponds to the position of the embedding groove (304). The position of the fixing block (303) corresponds to the position of the fixing groove (301).

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