Clamp for numerical control machining of shaft body

Abstract

The utility model relates to the technical field of clamps, in particular to a clamp for numerical control machining of a shaft body, which comprises a clamp body, and the clamp body comprises a machine base, a positioning device and a clamping device. The positioning device is connected to the upper portion of the machine base, one side of the positioning device is connected with the clamping device, a manual button is arranged outside the machine base, the positioning device comprises a positioning disc, a positioning clamp is arranged outside the positioning disc, a base is arranged in the clamping device, a clamp falling plate is arranged at the top of the base, and a telescopic shaft is arranged at the bottom of the clamp falling plate. Movable clamping plates are arranged on the two sides of the clamp falling plate, clamp pin shafts are arranged in the movable clamping plates, movable shafts are arranged outside the clamp pin shafts, and clamp bolts are arranged at the tops of the movable shafts and matched with the movable shafts. According to the utility model, the positioning clamp is arranged, so that workpieces are positioned more accurately in equipment, the clamp pin shaft and the telescopic shaft are arranged, so that the clamp can be suitable for different workpieces, and the clamp bolt is arranged, so that the clamp is not easy to loosen and has long service life.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a clamp for numerical control machining of a shaft. Background Art

[0002] The main function of the clamp body is to connect positioning elements, clamping devices and other parts, and to facilitate connection with machine tools. The structure and size of the clamp body need to be designed according to the positioning, clamping and other positions. The "top-down" design method is adopted, which is conducive to the determination of the shape and position of the clamp body. When the clamp body rotates, the spindle rotates synchronously, and when the clamp body clamps the outer wall of the oil cylinder, it supports, bears pressure and transmits the pressure of the outer wall of the oil cylinder. The lower part of the clamp body is provided with multiple independent eccentric arc parts protruding radially outward, and a movable limit assembly is provided between the clamp body and the oil cylinder, including a bushing and a roller adjustment hole installed on the bushing. The clamp body plays a vital role in mechanical processing. It not only ensures the stability and accuracy of the workpiece during the processing, but also improves the processing efficiency and quality, while reducing the processing cost.

[0003] A Chinese patent with publication number CN220463564U discloses a mechanical processing fixture, which relates to the field of mechanical processing technology and includes a work table, wherein fixed side plates are symmetrically fixedly installed on both sides of the outer wall at the top of the work table, and an electric push rod is arranged in the middle of the outer wall inside the fixed side plate, and a fixed plate is fixedly installed on the top of the inner side of the electric push rod, and a turntable is arranged on the inner wall of the fixed plate through an adjustment component, and a disassembly component is arranged on the outer wall inside the turntable, and a plurality of groups of triangular plates are equidistantly arranged in the middle of the outer wall of the turntable, and the outer wall on one side of the triangular plate abuts against the inner wall of the fixed plate; the angle of the arc-shaped clamping plate can be adjusted relatively conveniently under the action of the adjustment component, so that when the angle adjustment is required for processing the mechanical parts, the mechanical parts do not need to be removed and then re-clamped, thereby ensuring the convenience of the device during use.

[0004] In the above application, a fixing plate is used to fix the workpiece. The application scope of the fixing device is relatively single, and there are limitations on the workpieces that can be used with the fixture. A detachable arc-shaped clamping plate is suitable for mechanical parts of different shapes. Such parts require the equipment to be stopped when in use, which is time-consuming and labor-intensive. In addition, in addition to stability, the fixture device also requires accuracy in clamping the workpiece to maintain the balance of the equipment when working. Therefore, the fixture needs further improvement in terms of its scope of use and the balance of clamping the workpiece. Utility Model Content

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a fixture for numerical control machining of a shaft body, comprising a clamp body, the clamp body comprising a machine base, a positioning device and a clamping device; the positioning device is connected to the top of the machine base, and one side of the positioning device is connected to the clamping device; a manual button is arranged outside the machine base; the positioning device comprises a positioning plate, a positioning clamp is arranged outside the positioning plate, a positioning fixing nut is installed outside the positioning clamp, the positioning device is connected to the motor through a connecting plate, a bearing is arranged on the top of the motor, a screw is arranged outside the bearing, and a cover is arranged on one side of the bearing;

[0007] The clamping device is provided with a base, a clamp drop plate is provided on the top of the base, a telescopic shaft is provided at the bottom of the clamp drop plate, movable clamps are provided on both sides of the clamp drop plate, a clamp pin is provided inside the movable clamp, a movable shaft is provided outside the clamp pin, a washer is installed on one side of the movable shaft, a clamp bolt is provided on the top of the movable shaft to match it, and a clamping plate is installed on one side of the clamp pin.

[0008] Preferably, the manual buttons are circular, there are two of them, and the button positions are relatively distributed.

[0009] Preferably, a positioning clip is provided on the outside of the positioning plate. The length of the positioning clip is 40 cm, the material is alloy steel, and the number is four.

[0010] Preferably, the clamp pin in the clamping device has a length of 50 cm, is two in number, and is made of alloy steel.

[0011] Preferably, the number of the clamping plates is two, the thickness is 5 cm, and the type is a high-speed steel clamping plate.

[0012] The utility model has the following beneficial effects:

[0013] (1) The utility model: through the positioning clamp of the positioning device, the workpiece is positioned more accurately in the equipment, thereby ensuring the convenience of the equipment during use;

[0014] (2) The utility model: through the operation of the fixture pin and the telescopic shaft, the degree of clamping can be adjusted in real time according to the different sizes and thicknesses of the workpieces, so that the fixture can be suitable for mechanical workpieces of different shapes, further improving the practicality of the device during use;

[0015] (3) The utility model: a motor is provided to realize the work of positioning the workpiece, which can effectively control the direction and pressure, and has a quick response, thereby ensuring the reliability and timeliness of the fixture in use;

[0016] (4) The utility model: by setting the clamp bolts, the connection strength is high, the clamp can withstand greater resistance, is not easy to loosen, has a long service life, is simple and quick to install, improves the efficiency of the preparation work, and further improves the convenience of using the clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the positioning device of the utility model;

[0019] Figure 3 This is a schematic diagram of the motor of the utility model;

[0020] Figure 4 This is a schematic diagram of the clamping device of the utility model;

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] In the figure: 1. base; 2. positioning device; 3. clamping device; 101. manual button; 201. positioning plate; 202. positioning clamp; 203. positioning fixing nut; 204. connecting plate; 205. motor; 206. bearing; 207. screw; 208. cover; 301. base; 302. fixture drop plate; 303. movable clamp; 304. fixture pin; 305. movable shaft; 306. washer; 307. fixture bolt; 308. clamping plate; 309. telescopic shaft. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-Figure 4 As shown, the utility model is a fixture for CNC machining of shafts, comprising a clamp body, the clamp body comprising a machine base 1, a positioning device 2 and a clamping device 3; the positioning device 2 is connected to the upper part of the machine base 1, and one side of the positioning device 2 is connected to the clamping device 3;

[0025] A manual button 101 is provided outside the base 1; the manual button 101 is circular, there are two of them, and the button positions are relatively distributed;

[0026] The positioning device 2 includes a positioning disk 201, and a positioning clamp 202 is arranged outside the positioning disk 201. The length of the positioning clamp 202 is 40 cm, and the material is alloy steel. There are four of them. The physical and chemical properties of alloy steel are relatively stable, not easily changed by heat or corrosion, and have high hardness, plasticity and toughness. A positioning clamp 202 is arranged outside the positioning disk 201. Through the positioning clamp 202 of the positioning device 2, the workpiece is positioned more accurately in the equipment, thereby ensuring the convenience of the equipment during use; a positioning fixing nut 203 is installed outside the positioning clamp 202, and the positioning device 2 is connected to the motor 205 through a connecting plate 204. A bearing 206 is arranged on the top of the motor 205, and a screw 207 is arranged outside the bearing 206. A cover body 208 is arranged on one side of the bearing 206. The motor 205 is arranged to realize the work of positioning the workpiece position, which can effectively control the direction and pressure, and has a quick response, thereby ensuring the reliability and timeliness of the fixture in use;

[0027] The clamping device 3 is provided with a base 301, a clamp drop plate 302 is provided on the top of the base 301, a telescopic shaft 309 is provided at the bottom of the clamp drop plate 302, movable clamp plates 303 are provided on both sides of the clamp drop plate 302, and a clamp pin 304 is provided inside the movable clamp plate 303. The length of the clamp pin 304 is 50 cm, the number is two, and the material is alloy steel pin. Through the operation of the clamp pin 304 and the telescopic shaft 309, the degree of clamping can be adjusted in real time according to the different sizes and thicknesses of the workpiece, so that the clamp can be suitable for mechanical workpieces of different shapes, further improving In order to improve the practicality of the device during use, a movable shaft 305 is provided on the outside of the clamp pin 304, a washer 306 is installed on one side of the movable shaft 305, and a clamp bolt 307 is provided on the top of the movable shaft 305 to match it. By setting the clamp bolt 307, the connection strength is high, and it can withstand greater resistance, is not easy to loosen, and has a long service life. The installation is simple and quick, which improves the efficiency of the preparation work and further improves the convenience of using the clamp. A clamping plate 308 is installed on one side of the clamp pin 304. The number of clamping plates 308 is two, the thickness is 5 cm, and the type is a high-speed steel clamping plate.

[0028] Working principle: When in use, turn on the power of the external motor 205, the positioning plate 201 in the positioning device 2 cooperates with the positioning clamp 202 to clamp one end of the workpiece and clamp it, the clamp drop plate 302 of the clamping device 3 carries the other end of the workpiece, and the telescopic shaft 309 at the bottom of the clamp drop plate 302 cooperates with the clamp pin 304 to clamp the other end of the current type of workpiece through the clamping plates 308 on both sides. The positioning device 2 and the clamping device 3 cooperate with each other to maintain the balanced state of the clamp clamping the workpiece.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture for CNC machining of a shaft, comprising a clamp body, the clamp body comprising a machine base (1), a positioning device (2) and a clamping device (3); the positioning device (2) is connected to the top of the machine base (1), and one side of the positioning device (2) is connected to the clamping device (3); The base (1) is provided with a manual button (101) on the outside; The positioning device (2) comprises a positioning plate (201), a positioning clamp (202) is provided on the outside of the positioning plate (201), a positioning fixing nut (203) is installed on the outside of the positioning clamp (202), the positioning device (2) is connected to the motor (205) via a connecting plate (204), a bearing (206) is provided on the top of the motor (205), a screw (207) is provided on the outside of the bearing (206), and a cover (208) is provided on one side of the bearing (206); The clamping device (3) is provided with a base (301), a clamp drop plate (302) is provided on the top of the base (301), a telescopic shaft (309) is provided on the bottom of the clamp drop plate (302), movable clamp plates (303) are provided on both sides of the clamp drop plate (302), a clamp pin (304) is provided inside the movable clamp plate (303), a movable shaft (305) is provided outside the clamp pin (304), a washer (306) is installed on one side of the movable shaft (305), a clamp bolt (307) is provided on the top of the movable shaft (305) to match it, and a clamping plate (308) is installed on one side of the clamp pin (304).

2. The fixture for CNC machining of a shaft according to claim 1, characterized in that: The manual buttons (101) are circular in shape, there are two of them, and the button positions are relatively distributed.

3. The fixture for CNC machining of a shaft according to claim 2, characterized in that: The positioning plate (201) is provided with a positioning clip (202) on the outside. The positioning clip (202) is 40 cm long, made of alloy steel, and is four in number.

4. The fixture for CNC machining of a shaft according to claim 3, characterized in that: The clamp pin shaft (304) in the clamping device (3) has a length of 50 cm, is two in number, and is made of alloy steel.

5. The fixture for CNC machining of a shaft according to claim 3, characterized in that: The number of the clamping plates (308) is two, the thickness is 5 cm, and the type is a high-speed steel clamping plate.

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