Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Electric chuck unit

An electric chuck and chuck technology, applied in the field of machinery, can solve the problems of dynamic balance, complex structure, difficult installation and maintenance, etc., achieve the effect of reducing mass, simple and compact structure of the device, and improving the quality of dynamic balance

Inactive Publication Date: 2006-11-08
CHONGQING UNIV
View PDF1 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention proposes an electric chuck device in order to overcome the deficiencies of the prior art, such as dynamic balance, complex structure, difficult installation and maintenance, etc.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electric chuck unit
  • Electric chuck unit
  • Electric chuck unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] figure 1 In the structure shown, when the chuck clamps (or loosens) the workpiece, the electromagnetic brakes 16, 17, 34 are energized to act and brake, that is, the electromagnet group 16 is energized to attract the brake ring 17, so that the chuck The body shell 10, the chuck end cover 28, the chuck seat 3, and the main shaft 1 are connected as a whole without rotation; at this time, when the chuck motor (not shown) connected with the gear 8 rotates, the external meshing gear pair 7,8 Move according to the transmission ratio, and the gear 7 is used as an input part and transmits the motion to the internal gear 11 through the gear 13 installed on its eccentric shaft; at the same time, the electromagnetic friction clutch assembly 12, 19, 20, 21 is powered by the slip ring 11 , 32, 33 are energized and act, that is, the electromagnet 21 is energized and the pressure ring 20 is pressed against the friction plate group 19, and the coil wire 22 rotates synchronously with th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to universal fixture widely used in machine manufacturing field, and is one kind of electric chuck unit. The electric chuck unit consists of a clamping unit, a power unit, an electromagnetic friction clutch assembly, a casing, an electromagnetic brake assembly, etc. When the electromagnetic brake assembly is powered, the clamping unit is connected to the head stock integrally without rotating; and when the electromagnetic friction clutch assembly is powered, the power unit transfers the rotation to the claws for clamping or unclamping the workpiece. During machining, only the clamping unit rotates with the main shaft. Compared with available technology, the present invention has the advantages of reduced rotating part number and weight, being favorable to raising the dynamic balance quality of the main shaft, etc.

Description

technical field [0001] The invention relates to a general fixture for clamping workpieces widely used in the mechanical field. Background technique [0002] Power chucks are often used on CNC lathes and automatic lathes. In addition to hydraulic power chucks and pneumatic power chucks, electric chucks are also widely used. At present, the structure of most electric chucks is as follows: the chuck body is installed at the front end of the main shaft of the lathe, and the motor is installed at the rear end of the main shaft. Can clamp and loosen the workpiece. Patent WO9951380 discloses an electric chuck device. A harmonic gear reducer is installed in the chuck body at the front end of the main shaft of the lathe, and an electric power unit is installed at the rear end of the main shaft, including a motor and an electromagnetic clutch. connected by a hollow shaft. During the machining process, the chuck body, reducer, hollow shaft, main shaft and motor rotor rotate as a who...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B23B31/28
Inventor 陈小安陈昶
Owner CHONGQING UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com