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High-speed running type air and hydraulic automatic clamping device

An automatic clamping, gas-liquid technology, applied in the direction of positioning device, clamping, support, etc., can solve the problems of the clamping device being difficult to be concentric and parallel, the overall length of the clamping device is long, and it cannot run at high speed, etc., to improve the finished product, simplify the Structure, high reliability effect

Inactive Publication Date: 2012-08-15
施亨庆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned traditional clamping devices are generally used in rotary processing, and adopt a structure that combines the clamping mechanism and the rotary drive mechanism to the structure. However, it is difficult for the traditional clamping device of the machine tool to achieve concentric parallelism and cannot run at high speed. There is also a clamping device Inadequacies such as long overall length and poor clamping force

Method used

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  • High-speed running type air and hydraulic automatic clamping device
  • High-speed running type air and hydraulic automatic clamping device
  • High-speed running type air and hydraulic automatic clamping device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] figure 1 It is a structural schematic diagram of the first structure of the present invention, showing the first specific implementation manner of the present invention.

[0025] This embodiment is a high-speed operation type gas-hydraulic automatic clamping device, see figure 1 As shown, it includes a cylinder 1, a piston 2, a bracket 3 and a chuck assembly 4; the cylinder 1 is provided with a pressure working chamber 11 and a through hole 12 passing through the cylinder 1; the piston 2 includes a The sealing area 21 moving back and forth in the through hole 12 and the annular partition area 22 protruding from the outer wall of the sealing area 21, the partition area 22 is located in the pressure working chamber 11 of the cylinder body 1 and uses the pressure to work The chamber 11 is divided into two power chambers 23, and the center of the piston sealing area 21 is provided with a piston hole 24 concentric with the through hole 12 of the cylinder body 1; the chuck a...

Embodiment 2

[0031] figure 2 with image 3 A second embodiment of the invention is shown, in which figure 2 It is a structural schematic diagram of the second structure of the present invention; image 3 for figure 2 A schematic diagram of the structure of the conveying part in the high-speed operation type gas-hydraulic automatic clamping device shown.

[0032] This embodiment is basically the same as Embodiment 1, except that it also includes a feeding member 6 sleeved between the inner peripheral wall of the sliding hole 31 of the bracket 3 and the outer peripheral wall of the clamping area 25 of the cylinder body 1; The outer peripheral wall of the member 6 is provided with two annular outer grooves 61, and the inner peripheral wall is provided with two annular inner grooves 62, and each outer groove 61 and a corresponding inner groove 62 are arranged on the feeding member 6 The holes 63 in the wall are in communication; each outer groove 61 is also connected to a corresponding ...

Embodiment 3

[0039] Figure 4 It is a structural schematic diagram of the third structure of the present invention, showing the third specific implementation manner of the present invention.

[0040] This embodiment is basically the same as Embodiment 2, except that a pressure bearing ring 8 for supporting the bracket 3 together with the two groups of bearings 5 ​​is provided between the two sets of bearings 5, and the pressure bearing ring 8 in this embodiment The outer diameter of the bearing 5 is the same as that of the bearing 5, and the support 3 is provided with an oil storage cavity 34 under the conveying member 6 and the pressure bearing ring 8.

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Abstract

The invention discloses a high-speed running type air and hydraulic automatic clamping device, which comprises a cylinder, a piston, a support and a chuck component. The cylinder is provided with a pressure working cavity and a through hole penetrating through the cylinder; the piston consists of a tube sealing area and an annular partition board area, the annular partition board area divides the pressure working cavity into two power cavities, and the tube sealing area of the piston is provided with a piston hole concentric with the through hole of the cylinder; the chuck component is arranged in the piston hole; the support is provided with a slide hole and two pressure medium conveying channels, and a conveying opening at one end of each pressure medium conveying channel is positioned on the inner wall of the slide hole; the cylinder is provided with a tubular clamping area rotationally disposed in the slide hole of the support; two crimping medium channels are arranged in a tube of the clamping area, and outer ports of the two crimping medium channels are arranged on the outer peripheral wall of the clamping area; and each of various pressure medium channel outer ports of the clamping area is always communicated with the corresponding conveying opening in the slide hole of the support during rotation. The high-speed running type air and hydraulic automatic clamping device can stably run at a high rotation speed for a long time and is high in reliability.

Description

technical field [0001] The invention belongs to the technical field of gas-liquid clamping equipment, and in particular relates to a high-speed operation type gas-liquid automatic clamping device. Background technique [0002] In the clamping device of traditional machine tools, for the optical shaft parts with small diameter, the collet assembly is generally used for clamping. The inner hole of the collet assembly is used to install the workpiece, and there are several grooves, which can make the collet The component radially produces a small amount of deformation to clamp the workpiece; the outer cone surface of the collet assembly matches the inner cone surface of the jacket, the jacket is fixed on the spindle or the fixed structure of the machine tool, and the inner end of the collet assembly is connected to the pull rod , using the pulling of the pull rod to make the collet assembly move axially relative to the jacket, and due to the effect of the outer cone surface of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q3/12B23Q3/06B23Q16/10
Inventor 施亨庆
Owner 施亨庆