A telescopic chuck for high-end CNC equipment

Abstract

The invention discloses a telescopic chuck of high-end numerical control equipment, comprising a chuck body, a positioning base, a clamp, a driving disk and a flange. The front end of the chuck body is provided with a clamp, and the end of the chuck body away from the clamp is provided with a flange that can be used to connect with a machine tool. A positioning base is provided between the flange and the chuck body, a driving disk is provided inside the flange, and the driving disk is slidably connected to the flange. The flange passes through the positioning base and is transmission-connected with the clamp. The invention is used for processing hollow shafts and can also be used for clamping processing of related similar parts. The processing of outer circles and inner holes can be completed by one clamping, which can effectively improve product precision. At the same time, the processing procedures can be reduced to save costs, reduce manual labor intensity, and improve efficiency.

Description

[Technical field]

[0001] The present invention relates to the technical field of chucks, in particular to the technical field of telescopic chucks. [Background technology]

[0002] The chuck is a mechanical device used to clamp the workpiece on the machine tool. It is a machine tool accessory that uses the radial movement of the movable jaws evenly distributed on the chuck body to clamp and position the workpiece. The chuck is generally composed of three parts: the chuck body, the movable jaws, and the jaw drive mechanism. The diameter of the chuck body is from 65 mm to 1500 mm, with a through hole in the center to allow the workpiece or bar to pass through; the back has a cylindrical or short conical structure, which is directly or through a flange to connect to the end of the machine tool spindle. The chuck is usually installed on lathes, external cylindrical grinders, and internal cylindrical grinders, and can also be used in conjunction with various indexing devices for milling machines and drilling machines. For parts such as hollow shafts and punch heads that require processing of both the outer ring and the inner hole, the traditional processing method is to perform two processes. The traditional fixture requires manual adjustment of the workpiece position after processing the outer ring or inner hole once to facilitate the processing of the other side, resulting in low work efficiency and high labor intensity for workers. In addition, manual secondary clamping is prone to cause differences in clamping positions, affecting processing accuracy and workpiece quality. [Summary of the invention]

[0003] The purpose of the present invention is to solve the problems in the prior art and to propose a telescopic chuck for high-end CNC equipment, which can complete the processing of outer circles and inner holes in one clamping, effectively improve product precision, and at the same time reduce processing steps, save costs, and reduce manual labor intensity.

[0004] To achieve the above-mentioned purpose, the present invention proposes a telescopic chuck for high-end CNC equipment, comprising a chuck body, a positioning base, a clamp, a driving disk, and a flange. The front end of the chuck body is provided with a clamp, and the end of the chuck body away from the clamp is provided with a flange that can be used to connect to a machine tool. A positioning base is provided between the flange and the chuck body, a driving disk is provided in the flange, the driving disk is slidably connected to the flange, and the driving disk passes through the positioning base and is transmission-connected to the clamp.

[0005] Preferably, the clamp comprises a telescopic clamping ring and a plurality of chucks; the telescopic clamping ring is arranged in a chuck body, and the telescopic clamping ring is slidably connected to the chuck body; the telescopic clamping ring is provided with an inner ring conical surface of the clamping ring which can cooperate with the chuck; the chucks are evenly arranged in the telescopic clamping ring; the chucks are provided with an outer conical surface of the clamp which can cooperate with the inner ring conical surface of the clamping ring; the chuck is slidably connected to the telescopic clamping ring through the cooperation between the outer conical surface of the chuck and the inner ring conical surface of the clamping ring.

[0006] Preferably, a pull ring that can cooperate with the positioning base is provided on one end of the chuck close to the positioning base, and a chuck slot that can cooperate with the pull ring is provided on the chuck. The pull ring and the chuck slot are connected by snapping, and a limiting ring that can cooperate with the pull ring is provided at the other end of the positioning base. The pull ring and the limiting ring are fixedly connected by a plurality of first transmission pins, and the first transmission pins are arranged through the positioning base.

[0007] Preferably, the driving disk and the telescopic clamping ring are fixedly connected via a plurality of second transmission pins, and the second transmission pins are arranged through the positioning base disk.

[0008] Preferably, the telescopic clamping ring is provided with a limit key which can cooperate with the inner wall of the telescopic clamping ring.

[0009] Preferably, a limit pin cooperating with the chuck is provided on the telescopic clamping ring toward the chuck side, a pin groove cooperating with the limit pin is provided on the chuck, and one end of the limit pin is arranged in the pin groove.

[0010] Preferably, a sealing ring is provided between the telescopic clamping ring and the chuck body.

[0011] Preferably, a positioning base extending column is provided on one end of the positioning base close to the fixture, and a driving positioning block that can cooperate with the workpiece is provided on the positioning base extending column, and the driving positioning block is arranged toward the center of the fixture.

[0012] Preferably, the flange is provided with a top screw which can cooperate with the positioning base.

[0013] The beneficial effects of the telescopic chuck of high-end CNC equipment of the present invention are as follows: the present invention is used for processing hollow shafts, and can also be used for clamping processing of related similar parts. The processing of the outer circle and the inner hole can be completed in one clamping, which can effectively improve the product precision, and at the same time can reduce the processing procedures to save costs, reduce manual labor intensity, and improve efficiency.

[0014] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

Brief Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the fixture state structure when the telescopic chuck of a high-end CNC equipment of the present invention processes an outer circle;

[0016] Figure 2 The present invention is a schematic diagram of the clamp state structure when the telescopic chuck of a high-end numerical control equipment is used to process an inner hole.

[0017] In the figure: 1-chuck body, 2-positioning base, 3-clamp, 4-driving disk, 5-top screw, 6-flange, 7-pull ring, 8-limiting ring, 9-first transmission pin, 10-second transmission pin, 11-driving positioning block, 12-limiting key, 13-limiting pin, 14-sealing ring, 21-positioning base extension column, 31-telescopic clamping ring, 32-chuck, 311-inner cone of clamping ring, 321-outer cone of chuck, 322-pin groove. [Specific implementation method]

[0018] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the scope of the present invention. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0019] See also Figure 1 , Figure 2The present invention discloses a telescopic chuck for high-end numerical control equipment, comprising a chuck body 1, a positioning base plate 2, a fixture 3, a driving disk 4, and a flange plate 6. The front end of the chuck body 1 is provided with a fixture 3, and the end of the chuck body 1 away from the fixture 3 is provided with a flange plate 6 that can be used to connect with a machine tool. A positioning base plate 2 is provided between the flange plate 6 and the chuck body 1, and a driving disk 4 is provided inside the flange plate 6. The driving disk 4 is slidably connected with the flange plate 6. The driving disk 4 penetrates the positioning base plate 2 and is transmission-connected with the fixture 3. The fixture 3 comprises a telescopic clamping ring 31 and a plurality of chucks 32. The telescopic clamping ring 31 is arranged in the chuck body 1, and the telescopic clamping ring 31 is slidably connected with the chuck body 1. The telescopic clamping ring 31 is provided with a clamping ring inner ring cone 311 that can cooperate with the clamping head 32. The clamping head 32 is evenly arranged in the telescopic clamping ring 31. The clamping head 32 is provided with a clamping head outer cone 321 that can cooperate with the clamping ring inner ring cone 311. The clamping head 32 is slidably connected with the telescopic clamping ring 31 through the cooperation of the clamping head outer cone 321 and the clamping ring inner ring cone 311. The clamping head 32 is provided with a clamping ring inner ring cone 311 that can cooperate with the clamping ring inner ring cone 311 at one end close to the positioning base 2. The pull ring 7, the chuck 32 is provided with a chuck slot 323 that can cooperate with the pull ring 7, the pull ring 7 is connected with the chuck slot 323 by snapping, the other end of the positioning base 2 is provided with a limit ring 8 that can cooperate with the pull ring 7, the pull ring 7 and the limit ring 8 are fixedly connected by a plurality of first transmission pins 9, the first transmission pins 9 are set through the positioning base 2, the driving disk 4 and the telescopic clamping ring 31 are fixedly connected by a plurality of second transmission pins 10, the second transmission pins 10 are set through the positioning base 2, and the telescopic clamping ring 31 is provided with a plurality of second transmission pins 10 that can cooperate with the telescopic clamping ring 3 1, a limit key 12 that cooperates with the inner wall of the chuck 32 is provided on the telescopic clamping ring 31 toward the side of the chuck 32 and can cooperate with the chuck 32, a pin groove 322 that can cooperate with the limit pin 13 is provided on the chuck 32, one end of the limit pin 13 is arranged in the pin groove 322, a sealing ring 14 is provided between the telescopic clamping ring 31 and the chuck body 1, a positioning base plate extending column 21 is provided on the end of the positioning base plate 2 close to the clamp 3, a driving positioning block 11 that can cooperate with the workpiece is provided on the positioning base plate extending column 21, and the driving positioning block 11 is arranged toward the center of the clamp 3.

[0020] Working process of the present invention:

[0021] In the working process of the telescopic chuck of high-end numerical control equipment of the present invention, the flange 6 is connected to the machine tool by fixing bolts, the positioning base 2 is installed on the chuck body 1, the chuck body 1 and the positioning base 2 are installed on the flange 6 together by bolts, the coaxiality of the flange 6 and the chuck body 1 is ensured by adjusting the top screw 5 to ensure the dynamic balance under high-speed rotation, the driving positioning block 11 is installed on the positioning base 2, the driving disk 4 is connected to the machine tool pull rod, the driving disk 4 is connected to the telescopic clamping ring 31 through the second transmission pin 10, the telescopic clamping ring 31 and the chuck body 1 are limited by the key 12, and are sealed by the sealing ring 14, the limiting ring 8 is connected to the pull ring 7 through the first transmission pin 9, the pull ring 7 is in contact with the chuck 32 to provide a tensioning force, the chuck 32 and the telescopic clamping ring 31 are limited by the limiting pin 13, and the conical surfaces contact and move with each other to provide a clamping force; Figure 1 As shown, the workpiece is placed on the driving positioning block 11, and the tailstock top of the lathe supports the workpiece and rotates with the chuck to process the outer circle of the part. After processing, the driving disk 4 drives the telescopic clamping ring 31, the chuck 32 and other components to move to the right. When the limit ring 8 contacts the positioning base plate 2, the chuck 32 stops moving to the right. At this time, the telescopic clamping ring 31 moves to the right again to produce relative motion with the chuck, forcing the chuck 32 to clamp the workpiece. After the chuck clamps the workpiece, the tailstock top retreats, and the end face and inner hole of the part can be processed.

[0022] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. A telescopic chuck for high-end CNC equipment, characterized in that: The invention comprises a chuck body (1), a positioning base plate (2), a fixture (3), a driving plate (4), and a flange plate (6). The front end of the chuck body (1) is provided with a fixture (3). The end of the chuck body (1) away from the fixture (3) is provided with a flange plate (6) that can be used to connect to a machine tool. A positioning base plate (2) is provided between the flange plate (6) and the chuck body (1). A driving plate (4) is provided inside the flange plate (6). The driving plate (4) and the flange plate (6) are slidably connected to each other. The driving disk (4) passes through the positioning base disk (2) and is transmission-connected with the clamp (3); the clamp (3) comprises a telescopic clamping ring (31) and a plurality of clamping heads (32); the telescopic clamping ring (31) is arranged in the chuck body (1); the telescopic clamping ring (31) and the chuck body (1) are slidably connected; the telescopic clamping ring (31) is provided with a clamping ring inner ring conical surface (311) that can cooperate with the clamping head (32); the clamping heads (32) are evenly arranged in the telescopic clamping ring (31). The chuck (32) is provided with a chuck outer conical surface (321) that can cooperate with the inner conical surface (311) of the clamping ring. The chuck (32) is slidably connected to the telescopic clamping ring (31) through the cooperation between the chuck outer conical surface (321) and the inner conical surface (311) of the clamping ring. The chuck (32) is provided with a pull ring (7) that can cooperate with the positioning base (2) at one end thereof close to the positioning base (2). The chuck (32) is provided with a chuck slot (323) that can cooperate with the pull ring (7). The pull ring ( 7) is snap-connected with the chuck slot (323); the other end of the positioning base plate (2) is provided with a limit ring (8) that can cooperate with the pull ring (7); the pull ring (7) and the limit ring (8) are fixedly connected via a plurality of first transmission pins (9); the first transmission pins (9) are arranged through the positioning base plate (2); the driving plate (4) and the telescopic clamping ring (31) are fixedly connected via a plurality of second transmission pins (10); the second transmission pins (10) are arranged through the positioning base plate (2).

2. A telescopic chuck for high-end CNC equipment as claimed in claim 1, characterized in that: The telescopic clamping ring (31) is provided with a limit key (12) that can cooperate with the inner wall of the telescopic clamping ring (31).

3. A telescopic chuck for high-end CNC equipment as claimed in claim 1, characterized in that: A limit pin (13) capable of cooperating with the chuck (32) is provided on the telescopic clamping ring (31) on the side facing the chuck (32), and a pin groove (322) capable of cooperating with the limit pin (13) is provided on the chuck (32), and one end of the limit pin (13) is disposed in the pin groove (322).

4. A telescopic chuck for high-end CNC equipment as claimed in claim 1, characterized in that: A sealing ring (14) is provided between the telescopic clamping ring (31) and the chuck body (1).

5. A telescopic chuck for high-end CNC equipment as claimed in claim 1, characterized in that: A positioning base extension column (21) is provided on one end of the positioning base (2) close to the fixture (3), and a driving positioning block (11) capable of cooperating with a workpiece is provided on the positioning base extension column (21), and the driving positioning block (11) is arranged toward the center of the fixture (3).

6. A telescopic chuck for high-end CNC equipment as claimed in claim 1, characterized in that: The flange (6) is provided with a top screw (5) that can cooperate with the positioning base (2).

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