CN215747975U

CN215747975U - Double-end-face large-aperture double-control clamping main shaft

Info

Publication number: CN215747975U
Application number: CN202023177545.XU
Authority: CN
Inventors: 顾伟亮
Original assignee: Nanjing Kenmaide Machine Tool Manufacturing Co ltd
Current assignee: Nanjing Kenmaide Machine Tool Manufacturing Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2022-02-08
Anticipated expiration: 2030-12-25

Abstract

The utility model provides a double-end-face large-aperture double-control clamping main shaft which comprises a box body, wherein a main shaft, a right clamping mechanism, a right elastic clamp, a left clamping mechanism, a left elastic clamp and a bearing are arranged in the box body; one end of the main shaft is connected with a left clamping mechanism and a left elastic clamp, and the other end of the main shaft is connected with a right clamping mechanism and a right elastic clamp; the bearing is sleeved with a power distribution ring, the power distribution ring is provided with a plurality of power distribution grooves, and the power distribution grooves are respectively connected with a right clamping power input port, a right loosening power input port, a left clamping power input port, a left loosening power input port and an overflow port. The power part of the utility model pushes the workpiece to generate radial displacement to achieve the purpose of clamping the workpiece, and the workpiece can coaxially rotate along with the main shaft, thereby achieving the purpose of cutting different parts at the two ends and playing an important role in products with uneven thickness and easy deformation.

Description

Double-end-face large-aperture double-control clamping main shaft

Technical Field

The utility model relates to the field of metal cutting, in particular to a double-end-face large-aperture double-control clamping main shaft.

Background

In the existing metal cutting field, the adopted method of the double-end spindle is to shrink the clamp to achieve the purpose of clamping a workpiece in a mode of pulling a radial reducing shaft axially. The radial dimension difference causes axial position instability, and another problem is that the original double-end spindle cannot be applied to the part processing of either one end of a single clamping or two different modes of clamping.

For example, when different parts are machined at two ends, the parts cannot be clamped simultaneously at the left and the right, one center has no two purposes, and for a double-end-face main shaft, coaxial parts are usually machined, and the number of the inner parts of the shaft sleeve is large. This would not leave hundreds of thousands of equipment idle for equipment investors if the two ends were processed identically or differently.

SUMMERY OF THE UTILITY MODEL

The utility model provides a double-end-face large-aperture double-control clamping main shaft for solving the problems in the prior art, wherein a power part pushes the main shaft to generate radial displacement to achieve the purpose of clamping a workpiece, and the main shaft can coaxially rotate along with the main shaft, so that the purpose of cutting different parts by double ends is achieved, and the double-end-face large-aperture double-control clamping main shaft plays an important role in products which are uneven in thickness and easy to deform.

The belt pulley driving device comprises a box body, wherein a main shaft, a right clamping mechanism, a right elastic clamp, a left clamping mechanism, a left elastic clamp and a bearing are arranged in the box body; one end of the main shaft is connected with a left clamping mechanism and a left elastic clamp, and the other end of the main shaft is connected with a right clamping mechanism and a right elastic clamp; the bearing is sleeved with a power distribution ring, the power distribution ring is provided with a plurality of power distribution grooves, the power distribution grooves are respectively connected with a right clamping power input port, a right loosening power input port, a left clamping power input port, a left loosening power input port and an overflow port, and after the right clamping input port is connected with a power source, a right clamping mechanism acts and generates radial displacement to a right elastic clamp until a workpiece is clamped; when power is input into the right loosening input port, the right clamping power input port enables the right elastic clamp to be loosened, and therefore the right elastic clamp is loosened to work; the left clamping power input port inputs power to enable the left elastic clamp to generate radial displacement to clamp a workpiece, and when the left loosening power input port inputs power, the left clamping power input port enables the left elastic clamp to be loosened; when the power source is overloaded, the power source leaks out through the overflow outlet. The maximum clamping diameter of the clamp is less than or equal to 500 mm.

Further improved, the power source is an air source, a hydraulic source or the mixture of the air source and the hydraulic source.

The utility model has the beneficial effects that:

1. the double-end spindle has the advantages that unnecessary axial clamping errors are not generated any more, damage to the positioner and reduction of service life are not generated due to axial displacement, the clamping force is equal to the clamping force at two ends in the prior art, and clamping deformation is easily generated if one end of the double-end spindle is a thin-wall part.

2. Different parts are respectively clamped, so that the processing flexibility is greatly improved, and the flexibility is embodied by one machine with multiple purposes. The method achieves the aim of reducing investment for enterprises with small part batch and various varieties.

3. The coaxial processing is used for processing the long rod and the sleeve, so that the precision and the reliability are improved.

4. Because the manpower is reduced in the simultaneous processing of the two ends, the electric energy is efficiently used, the emission and the use of cutting fluid are reduced for the present with low carbon requirement, the purpose of environmental protection is achieved, the efficiency of the same machine is one time of that of a common machine tool, the equipment investment is reduced for the simultaneous processing of different parts, and the capital investment is expected to be saved by one third.

5. After the lathe used this main shaft, both can be done coaxial lathe and use, also can do the lathe and use, improved the rate of utilization of equipment, one can do two uses moreover, no matter be the scope of working, still equipment drops into, and the utility model discloses especially outstanding under the main shaft here.

Drawings

FIG. 1 is a side cross-sectional view of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a front view of the present invention;

fig. 4 is an isometric view of the present invention.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

The structure of the utility model is shown in figures 1 to 4, and comprises a box body 1, wherein a main shaft 4, a right clamping mechanism 5, a right elastic clamp 7, a left clamping mechanism 6, a left elastic clamp 8 and a bearing 2 are arranged in the box body 1, a belt pulley 14 drives a rotating shaft to rotate, and the bearing pins the main shaft between the box body and concentrically rotates along with the main shaft; one end of the main shaft is connected with a left clamping mechanism and a left elastic clamp, and the other end of the main shaft is connected with a right clamping mechanism and a right elastic clamp; the bearing is sleeved with a power distribution ring 3, the power distribution ring 3 is provided with a plurality of power distribution grooves, the power distribution grooves are respectively connected with a right clamping power input port 9, a right loosening power input port 10, a left clamping power input port 11, a left loosening power input port 12 and an overflow port 13, and after the right clamping input port is communicated with a power source, a right clamping mechanism acts and radially displaces a right elastic clamp until a workpiece is clamped; when power is input into the right loosening input port, the right clamping power input port enables the right elastic clamp to be loosened, and therefore the right elastic clamp is loosened to work; the left clamping power input port inputs power to enable the left elastic clamp to generate radial displacement to clamp a workpiece, and when the left loosening power input port inputs power, the left clamping power input port enables the left elastic clamp to be loosened; when the power source is overloaded, the power source leaks out through the overflow outlet.

While the utility model has been described in terms of its preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model.

Claims

1. A double-end-face large-aperture double-control clamping main shaft is characterized in that: the belt pulley is used for driving the rotating shaft to rotate, and the main shaft is tightly pinned between the box bodies and concentrically rotates along with the main shaft by the bearing; one end of the main shaft is connected with a left clamping mechanism and a left elastic clamp, and the other end of the main shaft is connected with a right clamping mechanism and a right elastic clamp; the bearing is sleeved with a power distribution ring, the power distribution ring is provided with a plurality of power distribution grooves, the power distribution grooves are respectively connected with a right clamping power input port, a right loosening power input port, a left clamping power input port, a left loosening power input port and an overflow port, and after the right clamping input port is connected with a power source, a right clamping mechanism acts and generates radial displacement to a right elastic clamp until a workpiece is clamped; when power is input into the right loosening input port, the right clamping power input port enables the right elastic clamp to be loosened, and therefore the right elastic clamp is loosened to work; the left clamping power input port inputs power to enable the left elastic clamp to generate radial displacement to clamp a workpiece, and when the left loosening power input port inputs power, the left clamping power input port enables the left elastic clamp to be loosened; when the power source is overloaded, the power source leaks out through the overflow outlet.

2. The double-end-face large-aperture double-control clamping main shaft of claim 1, which is characterized in that: the power source is an air source, a hydraulic source or the mixture of the air source and the hydraulic source.