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Reset cylinder mechanism of electric spindle cam tool loosening system

An electric spindle and cylinder technology, applied in positioning devices, metal processing mechanical parts, clamping and other directions, can solve the problems of reduced durability, breaking, large volume, etc., and achieve the effect of expanding the scope of application

Inactive Publication Date: 2015-05-20
GUANGZHOU HAOZHI ELECTROMECHANICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. Due to the unreasonable structure, the spindle is stuck due to impurities entering the sliding surface or the friction environment of the sliding surface deteriorates during the service life of the spindle.
[0006] 2. Because the restoring force components mostly use gas-liquid and other media to provide power to complete the reset, resulting in large structural volume and increased installation space.
[0007] 3. The structure of the restoring force part is unreasonable: it is more common when the elastic element is selected as the automatic restoration power, because the structure and the selection of the elastic element are unreasonable or the conditions for using the elastic element are unreasonable
For example, low-life elastic elements are selected regardless of the working conditions within the service life of the spindle, and for example, the spring is directly exposed to the external environment without protection and the design of the counterbore and guide pin that cooperates with the spring is unreasonable, and even the spring guide condition is not set, resulting in spring failure. Longitudinal and transverse bending occurs, resulting in localized high stress, resulting in reduced durability and eventual fracture

Method used

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  • Reset cylinder mechanism of electric spindle cam tool loosening system
  • Reset cylinder mechanism of electric spindle cam tool loosening system
  • Reset cylinder mechanism of electric spindle cam tool loosening system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 The reset cylinder mechanism of the cam tool loosening system of the electric spindle shown includes: the electric spindle top cover 1, the cylinder body 2, the piston 3 and the reset device 4, wherein: the electric spindle top cover 1 is used to seal the electric spindle The top of the spindle body 100 is used to close the pull rod mechanism 200 in the electric spindle body 100; the cylinder body 2 is fixedly connected to the electric spindle top cover 1; the piston 3 is slidingly fitted with the cylinder body 2, including the piston head 31 and the The bottom end of 31 is the piston rod 32 protruding toward the electric spindle top cover 1, and the piston rod 32 slides through the electric spindle top cover 1; the reset device 4 is used to provide the piston head 31 with a distance away from the electric spindle top cover 1. Driving force, the reset device 4 is installed on the cylinder body 2 .

[0031] The piston 3 is used as the force transmission...

Embodiment 2

[0039] Such as figure 2 Shown is the second embodiment of the reset cylinder mechanism of the electric spindle cam tool release system of the present invention. The difference between this embodiment two and the first embodiment is:

[0040] A cutter head 8 is added, and the cylinder body 2 is optimized to prevent impurities from entering the sliding mating surface between the piston 3 and the cylinder body 2 to hinder the sliding movement of the piston 3. At the same time, a reset device 4 is provided to reset the piston 3. The cylinder body 2 is enclosed by the top wall 201, the bottom wall 202 and the surrounding wall 203. The piston head 31 is built between the top wall 201 and the bottom wall 202 and slides with the inner wall of the surrounding wall 203. The piston rod 32 slides through the bottom wall. 202 ; the cutter head 8 is slidably fitted on the peripheral wall 203 , and a positioning post 81 protrudes downward from the middle of the cutter head 8 , and the pisto...

Embodiment 3

[0046] Such as image 3 Shown is the third embodiment of the reset cylinder mechanism of the electric spindle cam tool loosening system of the present invention. The difference between the third embodiment and the second embodiment is:

[0047] The reset device 4 of this example is different from the second embodiment. The reset device 4 of this example includes a vent hole 204 opened on the peripheral wall 203 and an annular air groove 205 opened on the upper surface of the bottom wall 202. The annular air groove 205 It communicates with the air hole 204 .

[0048] Through the vent hole 204 and the annular air groove 205, compressed air can be passed through the inner cavity between the cutter head 8 and the top wall 201 to provide an initial thrust for calibration when the piston head 31 is reset, effectively increasing the reset speed. And the reset device 4 is equivalent to the cylinder reset structure, which can avoid the problem of using elastic elements as the automati...

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PUM

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Abstract

The invention discloses a reset cylinder mechanism of an electric spindle cam tool loosening system. The reset cylinder mechanism comprises an electric spindle top cover, a cylinder body, a piston and a reset device, wherein the electric spindle top cover is used for covering the top of an external electric spindle body; the cylinder body is fixedly connected to the electric spindle top cover; the piston is in slide fit with the cylinder body and comprises a piston head and a piston column, the piston column extends towards the electric spindle top cover from the bottom end of the piston head, and the piston column slidably penetrates the electric spindle top cover; the reset device is used for providing drive force to the piston head, the drive force allows the piston head to move away from the electric spindle top cover, and the reset device is mounted on the cylinder body. The reset cylinder mechanism has the advantages that the axial force of a tool loosening cam can be reliably transmitted to a pull rod mechanism, and a simple and effective reset function is provided.

Description

technical field [0001] The invention relates to a reset cylinder body mechanism of an electric spindle cam tool release system. Background technique [0002] At present, the main shaft loosening mechanism of domestic machining center and drilling center can be divided into two categories: piston cylinder type loosening system (subdivided into cylinder type, oil cylinder type, composite oil cylinder type) and cam type tool loosening system. Due to the rapid replacement of products in the 3C industry, the processing speed of various medium and small molds and precision parts, which are typical of the drilling and tapping of electronic products in the 3C industry and the processing of parts in the automotive industry, requires the entire process of tool exchange (including spindle loosening). The two actions of changing the tool and the tool magazine) put forward a faster requirement. The traditional piston-cylinder type tool release system and the tool change action of the to...

Claims

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Application Information

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IPC IPC(8): B23Q3/157
CPCB23Q3/157
Inventor 汤秀清韩守磊丰坤郑绍坚
Owner GUANGZHOU HAOZHI ELECTROMECHANICAL