阅读说明：本技术 一种八沟道六星夹具及加工工艺 (Eight-channel six-star clamp and machining process ) 是由 曾怀念 欧根琴 于 2019-12-11 设计创作，主要内容包括：本发明公开了一种八沟道六星夹具及加工工艺,主要内容为：包括右筒体、中筒体、左喇叭块、螺纹孔和弧形沟道,所述中筒体固定在右筒体的左侧面上且中筒体与右筒体为一体式结构,中筒体的中心轴线与所述右筒体的中心轴线重合,中筒体上沿圆周方向均匀分布有八道弧形沟道,弧形沟道与中筒体的左侧面连通,八道弧形沟道将中筒体均匀分割成八瓣且每瓣的左侧面上都安装有左喇叭块,左喇叭块与中筒体为一体式结构,右筒体的外圆柱面上设有花键,中筒体的外圆柱面上设有螺纹。本发明结构简单,成本低,八道弧形沟道采用直接锻造而出,大大降低了工艺成本,提高了加工效率,而且加工质量稳定可靠。(The invention discloses an eight-channel six-star clamp and a processing technology, which mainly comprise the following steps: including right barrel, well barrel, left horn block, screw hole and arc channel, well barrel is fixed on the left surface of right barrel and well barrel and right barrel formula structure as an organic whole, the central axis of well barrel with the central axis coincidence of right barrel, it has eight arc channels along circumferencial direction evenly distributed on the well barrel, the arc channel communicates with the left surface of well barrel, all installs left horn block on eight lamella and every lamella left surface with well barrel evenly divided into to eight arc channels, left horn block and well barrel formula structure as an organic whole, be equipped with the spline on the outer face of cylinder of right barrel, be equipped with the screw thread on the outer face of cylinder of well barrel. The invention has simple structure and low cost, adopts the direct forging of eight arc-shaped channels, greatly reduces the process cost, improves the processing efficiency and has stable and reliable processing quality.)

1. The utility model provides an eight six star anchor clamps in channel which characterized in that: including right barrel, well barrel, left horn piece, screw hole and arc channel, well barrel is fixed on the left surface of right barrel and well barrel and right barrel formula structure as an organic whole, the central axis of well barrel with the central axis coincidence of right barrel, it has eight arc channels along circumferencial direction evenly distributed on the well barrel, the arc channel communicates with the left surface of well barrel, eight all install left horn piece on the left surface that eight lamellas and every lamella are evenly cut apart into with well barrel to the arc channel, left horn piece and well barrel formula structure as an organic whole, be equipped with the spline on the outer face of cylinder of right barrel, be equipped with the screw thread on the outer face of cylinder of well barrel, be equipped with the screw hole in arc recess and the arc recess on well barrel and the left horn piece.

2. The eight-channel six-star clamp of claim 1, wherein: the surface of the channel is sprayed with a wear-resistant and high-temperature-resistant coating which contains 5.5-6 wt% of silicon dioxide particles with the average particle size of 0.8-1.5 mu m and 2.2-2.5 wt% of titanium carbide particles with the average particle size of 0.5-0.8 mu m and has the thickness of 0.5-0.8 mm; then, a heat treatment process with quenching temperature of 870-890 ℃ and tempering temperature of 180-200 ℃ is carried out.

3. The eight-channel six-star clamp as claimed in claim 3, wherein the left horn block is made of silicon steel, the horn mouth included angle β of the cross section is 35-40 degrees, and the left horn block and the middle cylinder are fixedly connected into a whole by being installed on the middle cylinder after being pressed and cured for 10 hours at 60 ℃ through a threaded hole and adhesive glue.

4. The machining process of the eight-channel six-star clamp according to claim 3, characterized by comprising the following steps of: comprises the following steps:

the method comprises the following steps: forging an eight-channel six-star clamp blank through a forging die, wherein the arc-shaped channels are also forged at the same time;

step two: positioning and clamping are carried out through a center hole of the right barrel and the right side surface of the right barrel, and the outer surfaces of the right barrel and the middle barrel are finely turned by a numerical control lathe;

step three: positioning and clamping are carried out through a center hole and the left side surface of the middle cylinder body, and a hobbing machine is adopted to perform spline hobbing on the outer cylindrical surface of the right cylinder body;

step four: positioning and clamping are carried out through a center hole and the left side surface of the middle cylinder body, and thread rolling is carried out on the outer cylindrical surface of the middle cylinder body;

step five: spraying a wear-resistant high-temperature-resistant coating on the surface of the channel; then quenching the clamp at 870-890 ℃ for 1-1.5 h, and tempering at 180-200 ℃ for 5-6 h;

step six: the left horn block is installed on the middle cylinder body after being pressurized and cured for 6 hours at 80 ℃ through the threaded hole and the adhesive, namely the left horn block and the middle cylinder body are fixedly integrated;

step seven: positioning and clamping are carried out through the central hole of the right cylinder body and the right side surface of the right cylinder body, and fine grinding processing is carried out on the inner spherical surface of the left horn block in the clamp;

step eight: the arc-shaped channel in the clamp is finely ground and processed by positioning and clamping the center hole of the right cylinder and the right side surface of the right cylinder

Step nine: positioning and clamping are carried out through a center hole of the right barrel and the right side face of the right barrel, milling grooves are carried out on the middle barrel and the left horn block in the clamp, and threaded holes are drilled after milling;

step ten: cleaning the clamp, checking the size, filling a self-checking card, coating anti-rust oil, and warehousing for storage.

5. The machining process of the eight-channel six-star clamp as claimed in claim 4, wherein: the forging temperature of the blank is 810-830 ℃.

6. The machining process of the eight-channel six-star clamp as claimed in claim 4, wherein: the hardness of the clamp after tempering is HRC 58-62.

7. The machining process of the eight-channel six-star clamp as claimed in claim 4, wherein: the clamp must use a cutting fluid when finishing.

8. The machining process of the eight-channel six-star clamp as claimed in claim 4, wherein: the arc-shaped grooves in the clamp are subjected to fine grinding by using a cutting fluid.

Technical Field

The invention relates to the technical field of automobile part clamps, in particular to an eight-channel six-star clamp and a machining process.

Background

The existing six-star clamp is generally six channels, and the six channels are milled one by adopting a milling machine, so that the process route is greatly prolonged, the process route comprises blank forging, rough turning of outer diameter and inner cavity, finish turning of outer diameter and inner cavity, rough milling of six channels, chamfering of six channels, semi-finish milling of six channels, rolling of splines, rolling of threads, heat treatment, fine milling of inner spherical surface, and finish milling of six channels, the process cost is improved, the processing time is greatly prolonged, the processing efficiency is reduced, the processing quality stability is poor, materials are greatly wasted, and the wear resistance and the limiting strength of the existing eight-channel structure are limited.

Disclosure of Invention

The invention aims to solve the technical problems in the prior art and provides an eight-channel six-star clamp and a machining process, the eight-channel six-star clamp is simple in structure and low in cost, eight arc-shaped channels are directly forged, the process cost is greatly reduced, the machining efficiency is improved, the machining quality is stable and reliable, the wear resistance and the limiting strength are improved, the cost is saved, and the service life is prolonged.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a six star anchor clamps of eight channels, includes right barrel, well barrel, left horn block, screw hole and arc channel, well barrel is fixed on the left surface of right barrel and well barrel and right barrel formula structure as an organic whole, the central axis of well barrel with the central axis coincidence of right barrel, it has eight arc channels along circumferencial direction evenly distributed on the well barrel, the arc channel communicates with the left surface of well barrel, eight all install left horn block on the arc channel will well barrel evenly divided into eight lamellas and every lamella left surface, left horn block and well barrel formula structure as an organic whole, be equipped with the spline on the outer face of cylinder of right barrel, be equipped with the screw thread on the outer face of cylinder of well barrel, be equipped with the screw hole in arc recess and the arc recess on well barrel and the left horn block.

Further, the method comprises the following steps: the surface of the channel is sprayed with a wear-resistant and high-temperature-resistant coating which contains 5.5-6 wt% of silicon dioxide particles with the average particle size of 0.8-1.5 mu m and 2.2-2.5 wt% of titanium carbide particles with the average particle size of 0.5-0.8 mu m and has the thickness of 0.5-0.8 mm; then, a heat treatment process with quenching temperature of 870-890 ℃ and tempering temperature of 180-200 ℃ is carried out.

The mixture of silicon dioxide particles with the average particle size of 0.8-1.5 mu m and titanium carbide particles with the average particle size of 0.5-0.8 mu m has high strength and wear resistance, the particle size is small, the surface smoothness is ensured, and the coating thickness is moderate, so that the coating has certain processing performance after heat treatment and can be bonded with the surface of a channel to permeate into internal tissues by molecular force.

The left horn block is further made of manganese steel, the horn mouth included angle β of the cross section is 35-40 degrees, and the left horn block and the middle cylinder are fixedly connected into a whole after being pressed and cured for 6 hours at 80 ℃ through a threaded hole and adhesive glue.

The horn block plays a limiting role and also bears large force, the manganese steel material can bear severe working conditions such as impact, extrusion, material abrasion and the like, damage is not easy to occur, and the left horn block and the middle cylinder body are fixedly integrated into a whole after being pressurized and cured for 6 hours at 80 ℃ through threads and adhesive glue.

A processing technology of an eight-channel six-star clamp comprises the following steps:

the method comprises the following steps: forging an eight-channel six-star clamp blank through a forging die, wherein the arc-shaped channels are also forged at the same time;

step two: positioning and clamping are carried out through a center hole of the right barrel and the right side surface of the right barrel, and the outer surfaces of the right barrel and the middle barrel are finely turned by a numerical control lathe;

step three: positioning and clamping are carried out through a center hole and the left side surface of the middle cylinder body, and a hobbing machine is adopted to perform spline hobbing on the outer cylindrical surface of the right cylinder body;

step four: positioning and clamping are carried out through a center hole and the left side surface of the middle cylinder body, and thread rolling is carried out on the outer cylindrical surface of the middle cylinder body;

step five: spraying a wear-resistant high-temperature-resistant coating on the surface of the channel; then quenching the clamp at 870-890 ℃ for 1-1.5 h, and tempering at 180-200 ℃ for 5-6 h;

step six: the left horn block is installed on the middle cylinder body after being pressurized and cured for 6 hours at 80 ℃ through the threaded hole and the adhesive, namely the left horn block and the middle cylinder body are fixedly integrated;

step seven: positioning and clamping are carried out through the central hole of the right cylinder body and the right side surface of the right cylinder body, and fine grinding processing is carried out on the inner spherical surface of the left horn block in the clamp;

step eight: positioning and clamping are carried out through the center hole of the right cylinder body and the right side surface of the right cylinder body, and accurate grinding processing is carried out on the arc-shaped channel in the clamp;

step nine: positioning and clamping are carried out through a center hole of the right barrel and the right side face of the right barrel, milling grooves are carried out on the middle barrel and the left horn block in the clamp, and threaded holes are drilled after milling;

step ten: cleaning the clamp, checking the size, filling a self-checking card, coating anti-rust oil, and warehousing for storage.

Further, the method comprises the following steps: the forging temperature of the blank is 810-830 ℃.

Further, the method comprises the following steps: the hardness of the clamp after tempering is HRC 58-62.

Further, the method comprises the following steps: the clamp must use a cutting fluid when finishing.

Further, the method comprises the following steps: the arc-shaped grooves in the clamp are subjected to fine grinding by using a cutting fluid.

In the invention, the clamp is directly forged by adopting the die, and the eight channels are forged by one channel, so that the processing route is greatly shortened, the process cost is greatly reduced, the removal rate of material processing is greatly reduced, the utilization rate of materials is improved, and the materials are saved; the spline on the right barrel facilitates the installation and connection of the spline, and the eight arc-shaped channels on the middle barrel effectively realize the axial fixing effect through radial deformation in the installation work; the left horn block realizes the limiting function of the left end of the middle cylinder body, and the threaded hole realizes the mounting and connecting functions; the clamp greatly improves the performance of the material through quenching and tempering, thereby improving the working performance and prolonging the service life of the clamp. The mixture of silicon dioxide particles with the average particle size of 0.8-1.5 mu m and titanium carbide particles with the average particle size of 0.5-0.8 mu m sprayed in the channel has high strength and wear resistance, the surface smoothness is ensured due to small particle size, and the coating has certain processing performance after heat treatment and ensures that the coating can be bonded with the surface of the channel to permeate into internal tissues by molecular force. The manganese steel material can bear the severe working conditions of impact, extrusion, material abrasion and the like, is not easy to damage, and is fixedly combined with the middle cylinder into a whole after being pressurized and cured for 6 hours at 80 ℃ through threads and adhesive.

The invention has the following beneficial effects: simple structure, it is with low costs, eight arc channels adopt direct forging and go out, greatly reduced processing cost, improved machining efficiency, processingquality is reliable and stable moreover, has promoted wearability and spacing intensity simultaneously, saves cost increase of service life.

Drawings

FIG. 1 is a front view of the structure of one embodiment of the present invention;

fig. 2 is a left side view of the structure of an embodiment of the present invention.

Description of reference numerals:

1: right cylinder, 2: middle cylinder, 3: left horn block, 4: threaded hole, 5: an arcuate channel.

Detailed Description

The following description of the embodiments of the present invention refers to the accompanying drawings and examples: