Step chuck of precision automatic lathe

Abstract

The utility model discloses a step chuck of a precision automatic lathe, which relates to the technical field of chucks, and comprises a chuck, a clamping cavity is arranged at the front end of the chuck, a clamping sleeve is arranged in the clamping cavity at the front end of the chuck, a gasket is arranged at the bottom of the clamping cavity, a spring is transversely and fixedly mounted at the tail end of the clamping sleeve, and the spring is fixedly mounted at the tail end of the clamping sleeve. And the tail end of the spring is fixedly connected with the upper surface of the gasket. According to the step chuck, the clamping sleeve is arranged in the step chuck, so that the step chuck can adapt to the design of bars with different diameters, the universality is higher, the use requirements of various types of precision automatic lathe machining machines can be met, the compatibility problem during chuck replacement is solved, the machining efficiency and the machining quality are improved, the stability of the chuck is enhanced through the arrangement of the clamping sleeve, and the machining cost is reduced. The possibility of abrasion and looseness in the using process is reduced, and the stability of machining precision is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of chucks, in particular to a Swiss-type lathe step chuck. Background Art

[0002] Swiss lathe step chuck is a fixture device for Swiss lathe (sliding lathe). It is mainly used for processing bars with a diameter of 1 to 32 mm. The main function of the Swiss lathe step chuck is to clamp the bar, make it rotate synchronously with the spindle, and perform longitudinal and radial cutting. Swiss lathe step chuck is an indispensable component in the Swiss lathe processing process. It has high precision, high wear resistance and good anti-slip performance, ensuring the processing quality.

[0003] When the existing Swiss lathe step chuck is used to clamp bar materials, bar materials of different sizes require step chucks of corresponding sizes, which results in limited application scope of a single step chuck. Universal step chucks often cannot meet the use requirements of different models of Swiss lathes, resulting in compatibility issues when replacing chucks of Swiss lathes, affecting processing efficiency and quality. During use, the existing step chucks may experience problems such as wear and looseness, resulting in unstable processing accuracy and affecting part quality.

[0004] Therefore, it is necessary to invent a Swiss-type lathe step chuck to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a Swiss-type lathe step chuck to solve the above-mentioned technical deficiencies.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a step chuck of a Swiss-type lathe, comprising a chuck, a chuck having a chuck cavity at the front end thereof, a chuck sleeve arranged inside the chuck cavity at the front end thereof, a gasket arranged at the bottom of the chuck cavity, a spring laterally fixedly installed at the rear end of the chuck sleeve, and the rear end of the spring fixedly connected to the upper surface of the gasket.

[0007] As a preferred solution of the utility model, the outer diameter of the jacket is matched with the inner diameter of the clamp cavity, a notch groove is provided between the outer wall of the jacket and the centering hole, and a plurality of waist-shaped grooves are provided between the outer wall of the jacket and the clamp cavity, and the waist-shaped grooves of the jacket correspond to the notch grooves.

[0008] As a preferred solution of the utility model, a threaded hole is opened in the bottom center of the clamping cavity, a screw is fixedly installed in the bottom center of the gasket, the screw is adapted to the threaded hole and is threadedly connected, and a hexagonal hole is opened in the middle position of the upper surface of the gasket.

[0009] As a preferred solution of the utility model, the jacket is made of rubber material, and the front end of the centering hole of the jacket is designed with an arc chamfer.

[0010] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0011] 1. By installing a collet in the step chuck, the step chuck can be adapted to the design of bars of different diameters, and has stronger versatility. It can meet the use requirements of various types of Swiss-type lathes, reduce the compatibility problem when replacing the chuck, and improve the processing efficiency and quality. In addition, by setting the collet, the stability of the chuck is enhanced, the possibility of wear and loosening during use is reduced, and the stability of the processing accuracy is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0013] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0014] Figure 2 It is an exploded view from the first perspective of the overall structure of the utility model;

[0015] Figure 3 It is an exploded view from a second perspective of the overall structure of the utility model;

[0016] Figure 4 It is a cross-sectional view of the chuck of the utility model.

[0017] Description of reference numerals:

[0018] 1. Chuck; 11. Waist-shaped groove; 2. Clamp cavity; 3. Clamp sleeve; 31. Centering hole; 4. Gasket; 41. Screw; 42. Hexagon socket hole; 5. Threaded hole; 6. Spring. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] The utility model provides Figure 1-4A Swiss machine step chuck is shown, including a chuck 1, which serves as a carrier of the entire chuck and is used to clamp the bar stock. A clamping cavity 2 is provided at the front end of the chuck 1, and the clamping cavity 2 is used to accommodate a sleeve 3, and the sleeve 3 can be adjusted according to the diameter of the bar stock. A sleeve 3 is provided inside the clamping cavity 2 at the front end of the chuck 1, and a gasket 4 is provided at the bottom of the clamping cavity 2. A spring 6 is fixed in the clamping cavity 2 by the gasket 4, so as to facilitate the disassembly and removal of the spring 6. A spring 6 is laterally fixedly installed at the tail end of the sleeve 3, and the spring 6 can automatically push out the sleeve 3 through the spring 6, thereby automatically expanding the diameter of the sleeve 3, and the tail end of the spring 6 is fixedly connected to the upper surface of the gasket 4.

[0021] Furthermore, in the above technical scheme, the outer diameter of the jacket 3 is adapted to the inner diameter of the clamp cavity 2, a notch groove is provided between the outer wall of the jacket 3 and the centering hole 31, and a plurality of waist-shaped grooves 11 are provided between the outer wall of the jacket 3 and the clamp cavity 2, and the waist-shaped grooves 11 of the jacket 3 correspond to the notch grooves. The design of the notch grooves and the waist-shaped grooves 11 enables the internal cavity of the jacket 3 and the chuck 1 to have a certain degree of adjustability.

[0022] Furthermore, in the above technical solution, a threaded hole 5 is opened at the bottom center of the clamping cavity 2, and a screw 41 is fixedly installed at the bottom center of the gasket 4. The gasket 4 can be fixed to the bottom of the clamping cavity 2 by the screw 41, so as to achieve the position of the fixed spring 6 inside the clamping cavity 2. The screw 41 is adapted to the threaded hole 5 and is threadedly connected. A hexagonal hole 42 is opened in the middle position of the upper surface of the gasket 4, which facilitates the disassembly of the gasket 4.

[0023] Furthermore, in the above technical solution, the jacket 3 is made of rubber material, and the front end of the centering hole 31 of the jacket 3 is designed with an arc chamfer.

[0024] The working process of the Swiss-type lathe step chuck provided by the utility model when in use is as follows:

[0025] When using the chuck 1, a chuck 1 of a suitable size is selected, and a plurality of sleeves 3 are provided according to the inner diameter of the clamping cavity 2 of the chuck 1. The outer diameters of the plurality of sleeves 3 are adapted to the inner diameter of the clamping cavity 2, but the centering holes 31 inside different sleeves 3 are different, that is, the outer diameters of the plurality of sleeves 3 are the same, but the inner diameters of the centering holes 31 are different, and the centering holes 31 of different sleeves 3 are used to adapt to rods of different sizes.

[0026] The locking cam 3 is then tightened to the locking cam 3, and the locking cam 3 is then tightened to the locking cam 3. The locking cam 3 is then tightened to the locking cam 3, and the locking cam 3 is then tightened to the locking cam 3.

[0027] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A Swiss-type lathe step chuck, comprising a chuck (1), characterized in that: The front end of the chuck (1) is provided with a chuck cavity (2), a chuck sleeve (3) is arranged inside the front end chuck cavity (2) of the chuck (1), a gasket (4) is arranged at the bottom of the chuck cavity (2), a spring (6) is transversely fixedly installed at the rear end of the chuck sleeve (3), and the rear end of the spring (6) is fixedly connected to the upper surface of the gasket (4).

2. The step chuck of Swiss-type lathe according to claim 1, characterized in that: The outer diameter of the jacket (3) is matched with the inner diameter of the clamp cavity (2); a notch groove is provided between the outer wall of the jacket (3) and the centering hole (31); a plurality of waist-shaped grooves (11) are provided between the outer wall of the jacket (3) and the clamp cavity (2); and the waist-shaped grooves (11) of the jacket (3) correspond to the notch grooves.

3. The step chuck of a Swiss lathe according to claim 1, characterized in that: A threaded hole (5) is provided at the center of the bottom of the clamping cavity (2); a screw (41) is fixedly installed at the center of the bottom of the gasket (4); the screw (41) is matched with the threaded hole (5) and is threadedly connected; a hexagonal hole (42) is provided at the middle position of the upper surface of the gasket (4).

4. The step chuck of a Swiss lathe according to claim 1, characterized in that: The jacket (3) is made of rubber material, and the front end of the centering hole (31) of the jacket (3) is designed with an arc chamfer.

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