Cutter fixing device of high-precision drilling and tapping center machine tool

Abstract

The utility model relates to the technical field of fixing devices, and discloses a cutter fixing device of a high-precision drilling and tapping center machine tool, which comprises a base, a clamping mechanism assembled inside the base, and a rotating mechanism assembled outside the clamping mechanism. According to the cutter fixing device of the high-precision drilling and tapping center machine tool, through the arrangement of the base, the clamping mechanism and the rotating mechanism, a cutter penetrates through a through hole of the bottom plate to the inner top wall of a conical groove, a threaded cylinder is rotated to drive the bottom plate to ascend, so that an extended spring is reset, and meanwhile the bottom of a T-shaped block is driven to slide in a sliding groove in the surface of the bottom plate and get close to each other; and a limiting block on the surface of a T-shaped block slides in a limiting groove in the inner wall of a conical groove, so that the T-shaped block synchronously moves towards the middle, and after the cutter is clamped and fixed, a threaded cylinder is loosened, a spring always pulls a bottom plate, so that the bottom plate is difficult to rotate or descend, and the cutter fixing stability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of fixing device technology, and in particular to a tool fixing device for a high-precision drilling and tapping center machine tool. Background Technology

[0002] High-precision drilling and tapping center machine tools are high-end CNC machine tools that integrate drilling, milling, tapping and other functions. They are designed for high-efficiency and high-precision machining of light and small metal parts and are generally used in the 3C electronics industry, mold manufacturing, aerospace and automotive fields.

[0003] Currently, the tool fixing devices of high-precision drilling and tapping center machine tools on the market have the following drawbacks: In the tool fixing devices of drilling and tapping center machine tools, threaded fastening is widely used, but under high-speed rotation and complex cutting forces, it is easy to loosen due to vibration or stress concentration, which can lead to axial displacement or even detachment of the tool and affect the machining accuracy. To address this, we have designed a tool fixing device for high-precision drilling and tapping center machine tools. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a tool fixing device for a high-precision drilling and tapping center machine tool that is highly practical, easy to operate, and has a simple structure. This solves the problem that the threaded fastening method mentioned in the background art is widely used, but is prone to loosening due to vibration or stress concentration under high-speed rotation and complex cutting forces.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a tool fixing device for a high-precision drilling and tapping center machine tool, comprising a base and a clamping mechanism assembled inside the base, and a rotating mechanism assembled outside the clamping mechanism.

[0006] The base includes a mounting block and a conical groove formed at the center of one end of the mounting block. The inner wall of the conical groove has a plurality of limiting grooves arranged in a circular array, and one end of the mounting block has a plurality of circular holes arranged in a circular array.

[0007] The clamping mechanism includes several limiting blocks slidably connected inside several limiting grooves and T-shaped blocks fixedly connected to the surfaces of several limiting blocks, as well as a base plate mounted on the bottom of the T-shaped blocks. Several sliding grooves are formed on the surface of the base plate, and sliders are slidably connected inside several sliding grooves. The top of the sliders is fixedly connected to the T-shaped blocks. Several springs are arranged in a circular array on the top circumference of the base plate. One end of several springs is fixedly connected to the inner top wall of a circular hole, and several buffer rods are sleeved inside the several springs.

[0008] Optionally, the rotating mechanism includes a collar rotatably connected to the arc surface of the base plate and a threaded cylinder fixedly connected to the top of the collar, wherein the inner wall of the threaded cylinder is threadedly connected to the surface of the mounting block.

[0009] Optionally, a rubber sleeve is fixedly connected to the surface of the threaded cylinder, and the surface of the rubber sleeve is provided with several grooves.

[0010] Optionally, one side of several of the T-blocks is set as an arc, and the surface of the arc is fitted with a cutting tool.

[0011] Optionally, a through hole is provided at the top center of the base plate, and a cutting tool is movably connected inside the through hole.

[0012] This utility model provides a tool fixing device for a high-precision drilling and tapping center machine tool, which has the following beneficial effects:

[0013] 1. The tool fixing device of this high-precision drilling and tapping center machine tool, through the setting of a base, clamping mechanism and rotating mechanism, allows the tool to pass through the through hole of the base plate to the inner top wall of the conical groove. Rotating the threaded cylinder drives the base plate to rise, thereby causing the stretched spring to return to its original position. At the same time, it causes the bottom of the T-block to slide on the sliding groove on the surface of the base plate and move closer to each other. Meanwhile, the limiting block on the surface of the T-block slides in the limiting groove on the inner wall of the conical groove, thereby realizing that the T-block moves synchronously towards the center, thus clamping the tool. After the tool is fixed, the threaded cylinder is released. At this time, the spring will continue to pull the base plate, making it difficult to rotate or descend. This increases the stability of the tool fixing device and reduces the vibration generated under the action of rotation and complex cutting, which may cause the threaded cylinder and base plate of the device to loosen. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the overall disassembled structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the T-shaped block structure of this utility model.

[0018] In the diagram: 1. Base; 101. Mounting block; 102. Conical groove; 103. Limiting groove; 104. Circular hole; 2. Clamping mechanism; 201. Limiting block; 202. T-block; 203. Base plate; 204. Slide groove; 205. Slider; 206. Spring; 3. Rotating mechanism; 301. Collar; 302. Threaded cylinder; 4. Rubber sleeve; 5. Cutting tool. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0020] Please see Figures 1 to 4 This utility model provides a technical solution: a tool fixing device for a high-precision drilling and tapping center machine tool, including a base 1, a clamping mechanism 2 assembled inside the base 1, and a rotating mechanism 3 assembled outside the clamping mechanism 2. The base 1 includes a mounting block 101 and a conical groove 102 opened at the center of one end of the mounting block 101. The inner wall of the conical groove 102 has a plurality of limiting grooves 103 arranged in a circular array. One end of the mounting block 101 has a plurality of circular holes 104 arranged in a circular array. Mechanism 2 includes several limiting blocks 201 slidably connected inside several limiting grooves 103 and T-shaped blocks 202 fixedly connected to the surfaces of several limiting blocks 201, and a base plate 203 mounted on the bottom of the T-shaped blocks 202. Several sliding grooves 204 are formed on the surface of the base plate 203. Sliding sliders 205 are slidably connected inside the sliding grooves 204. The top of the sliding sliders 205 is fixedly connected to the T-shaped blocks 202. Several springs 2 are arranged in a circular array around the top of the base plate 203. 06. One end of several springs 206 is fixedly connected to the inner top wall of the circular hole 104. Several buffer rods are sleeved inside the several springs 206. The tool 5 is passed through the through hole of the base plate 203 to the inner top wall of the conical groove 102. The threaded cylinder 302 is rotated to drive the base plate 203 to rise, thereby causing the stretched springs 206 to return to their original position. At the same time, the bottom of the T-block 202 is driven to slide in the sliding groove 204 on the surface of the base plate 203 and move closer to each other. The limiting block 201 on the surface of the T-block 202 slides in the limiting groove 103 on the inner wall of the conical groove 102, thereby realizing that the T-block 202 moves synchronously to the middle, thereby clamping the tool 5. After the tool 5 is fixed, the threaded cylinder 302 is released. At this time, the springs 206 will continue to pull the base plate 203, making it difficult to rotate or descend. This increases the stability of the device in fixing the tool 5 and reduces the vibration caused by rotation and complex cutting to loosen the threaded cylinder 302 and the base plate 203 of the device.

[0021] Furthermore, the rotating mechanism 3 includes a collar 301 rotatably connected to the arc surface of the base plate 203 and a threaded cylinder 302 fixedly connected to the top of the collar 301. The inner wall of the threaded cylinder 302 is threadedly connected to the surface of the mounting block 101. When the threaded cylinder 302 rotates, it can drive the base plate 203 to move up and down.

[0022] Furthermore, a rubber sleeve 4 is fixedly connected to the surface of the threaded cylinder 302. Several grooves are formed on the surface of the rubber sleeve 4. The grooves formed on the surface of the rubber sleeve 4 can increase the friction when the threaded cylinder 302 is rotated.

[0023] Furthermore, one side of several T-blocks 202 is set as an arc, and the surface of the arc is attached to the tool 5. The arc on one side of the T-block 202 can better fit the surface of the tool 5.

[0024] Furthermore, a through hole is provided at the top center of the base plate 203, and a cutting tool 5 is movably connected inside the through hole, which facilitates the installation of the cutting tool 5.

[0025] In this invention, the working steps of the device are as follows:

[0026] First step: Pass the cutter 5 through the through hole of the base plate 203 to the inner top wall of the conical groove 102, rotate the threaded cylinder 302 to drive the base plate 203 to rise, thereby resetting the stretched spring 206, and at the same time driving the bottom of the T-block 202 to slide in the sliding groove 204 on the surface of the base plate 203 and move closer to each other, while the limiting block 201 on the surface of the T-block 202 slides in the limiting groove 103 on the inner wall of the conical groove 102, thereby realizing that the T-block 202 moves synchronously towards the middle;

[0027] The second step involves clamping the tool 5 and securing it. After securing the tool 5, the threaded cylinder 302 is released. At this point, the spring 206 will continuously pull the base plate 203, making it difficult for it to rotate or descend. It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of the utility model. The technical details of the device's power mechanism, power supply system, and control system are not fully described. However, those skilled in the art, understanding the principle of the above utility model, can clearly understand the specifics of its power mechanism, power supply system, and control system. The control method described in the application document is automatic control via a controller, and the controller's control circuit can be implemented through simple programming by those skilled in the art.

[0028] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0029] 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 tool fixing device for a high-precision drilling and tapping center machine tool, characterized in that: The system includes a base (1) and a clamping mechanism (2) assembled inside the base (1), and a rotating mechanism (3) assembled outside the clamping mechanism (2); the base (1) includes a mounting block (101) and a conical groove (102) opened at the center of one end of the mounting block (101), the inner wall of the conical groove (102) has a plurality of limiting grooves (103) arranged in a circular array, and one end of the mounting block (101) has a plurality of circular holes (104) arranged in a circular array; The clamping mechanism (2) includes several limiting blocks (201) slidably connected inside several limiting grooves (103) and T-shaped blocks (202) fixedly connected to the surface of several limiting blocks (201), and a base plate (203) mounted on the bottom of the T-shaped blocks (202). Several sliding grooves (204) are opened on the surface of the base plate (203). Sliding blocks (205) are slidably connected inside several sliding grooves (204). The top of the sliding blocks (205) is fixedly connected to the T-shaped blocks (202). Several springs (206) are arranged in a circular array on the top circumference of the base plate (203). One end of several springs (206) is fixedly connected to the inner top wall of the circular hole (104). Several buffer rods are sleeved inside several springs (206).

2. The tool fixing device for a high-precision drilling and tapping center machine tool according to claim 1, characterized in that: The rotating mechanism (3) includes a collar (301) rotatably connected to the arc surface of the base plate (203) and a threaded cylinder (302) fixedly connected to the top of the collar (301). The inner wall of the threaded cylinder (302) is threadedly connected to the surface of the mounting block (101).

3. The tool fixing device for a high-precision drilling and tapping center machine tool according to claim 2, characterized in that: A rubber sleeve (4) is fixedly connected to the surface of the threaded cylinder (302), and the surface of the rubber sleeve (4) has several grooves.

4. The tool fixing device for a high-precision drilling and tapping center machine tool according to claim 1, characterized in that: One side of several of the T-blocks (202) is set as an arc, and the surface of the arc is fitted with a cutting tool (5).

5. The tool fixing device for a high-precision drilling and tapping center machine tool according to claim 1, characterized in that: A through hole is provided at the top center of the base plate (203), and a cutting tool (5) is movably connected inside the through hole.

Images