Unlock instant, AI-driven research and patent intelligence for your innovation.

A processing method for an inner spiral raceway of a screw nut

A screw nut and processing method technology, applied in metal processing equipment, manufacturing tools, surface polishing machine tools, etc., can solve the problems of small amount of grinding removal, low processing efficiency, etc., to remove surface burns, improve use efficiency, Guaranteed consistent effect

Active Publication Date: 2020-09-08
CIXING GROUP
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, in order to ensure that the surface roughness after grinding meets the requirements, the size of the grinding wheel is selected to be small. In the case of avoiding grinding burns, the amount of grinding removal is very small, so the processing efficiency is very low.

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
  • A processing method for an inner spiral raceway of a screw nut
  • A processing method for an inner spiral raceway of a screw nut
  • A processing method for an inner spiral raceway of a screw nut

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Step 1. According to the geometric size and shape of the inner helical raceway, the profile of the grinding wheel is trimmed and the trajectory of the feed is adjusted, and the workpiece is ground to obtain a screw nut with the geometric shape of the inner helical raceway, which has a preliminary inner helical The structure of the screw nut with the shape of the raceway is as follows figure 1 shown.

[0041] Step 2, cleaning the prepared screw nut to remove residual grinding debris and polishing fluid.

[0042] Step 3. Use a device for polishing the inner spiral raceway of a single screw nut. After the screw nut is connected, the abrasive flow flows through the spiral raceway, and the vibration mechanism vibrates the device while the abrasive flow flows through the spiral raceway . The polishing device such as figure 2 and image 3As shown, it includes: a cylindrical central rod 2, the outer diameter of the central rod 2 is consistent with the inner diameter of the...

Embodiment 2

[0051] Step 1. According to the geometric size and shape of the inner helical raceway, the contour of the grinding wheel is trimmed and the trajectory of the feed is adjusted, and the workpiece is ground to obtain a screw nut with the geometric shape of the inner helical raceway.

[0052] Step 2, cleaning the prepared screw nut to remove residual grinding debris and polishing fluid.

[0053] Step 3. Use a device that simultaneously polishes the inner spiral raceway of multiple screw nuts. After connecting the screw nuts, make the abrasive flow flow through the spiral raceway. Apply vibration. Such as Figure 4-8 As shown, the device includes: a central rod 20 is arranged in the inner hole of the screw nut 10, and the central rod 20 is in one-to-one correspondence with the screw nut 10, so that part of the outer surface of the central rod 20 is in contact with the screw nut 10. The spiral raceway forms a grinding pipeline with openings at both ends; the top cover 40 is sleeve...

Embodiment 3

[0070] Step 1 and Step 2 are the same as in Embodiment 1.

[0071] Step 3 differs from Embodiment 1 in that: 1. The abrasive flow is a magnetic fluid. 2. By applying a magnetic field to the polishing device, the magnetic fluid is further controlled to polish the inner spiral raceway.

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 invention relates to a machining method of an inner spiral raceway of a screw nut for an automobile brake system. The machining method comprises the following steps that according to the geometricsize and the morphology of the inner spiral raceway, the outline of a grinding wheel is trimmed, the feeding track is adjusted, a workpiece is ground, and the screw nut with the geometric morphologyof the inner spiral raceway is obtained; then the manufactured screw nut is cleaned, and residual abrasive dust and polishing liquid are removed; and finally, a device with a vibration mechanism and an abrasive flow inlet and outlet channel is adopted to be connected with the cleaned screw nut, abrasive flow flows through the spiral raceway, and the vibration mechanism applies vibration to the device while the abrasive flow flows through the spiral raceway. According to the machining method, the problem that the surface is prone to being burnt due to the fact that only a grinding machining technology is adopted is avoided, machining of the spiral raceway in the screw nut is divided into two relatively independent steps which are connected and matched with each other, and the machining efficiency is high.

Description

technical field [0001] The invention belongs to the field of high-efficiency grinding and ultra-precision polishing, and in particular relates to a processing method for an inner spiral raceway of a screw nut. Background technique [0002] With the development of our industry, various parts with inner cavity structures are more and more widely used in aviation, aerospace, weapons, medical and other industries. For the inner cavity structure with dimensional accuracy and shape accuracy requirements, due to the limitation of processing space, etc., it is difficult to achieve high-efficiency and ultra-precision processing under the premise of ensuring the stability of processing quality. For example, the spiral raceway on the inner surface of the screw nut requires very high shape and dimension accuracy in order to ensure the motion accuracy and service life after assembly, and also has high requirements on the roughness of the raceway surface. [0003] Grinding is a common pr...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B24B1/00B24B1/04B24B31/116C25F3/16
CPCB24B1/005B24B1/04B24B31/116C25F3/16
Inventor 郭宗福赵坤徐林燕
Owner CIXING GROUP