CN107755984A - Elastic piston ring Work piece processing method - Google Patents

Abstract

Elastic piston ring Work piece processing method of the present invention is related to field of machining, and in particular to elastic piston ring Work piece processing method, comprises the following steps：It is rough turn, rough turn each portion, Excircle machining at left end 4mm to desired size, do following process and present a theatrical performance as the last item on a programme, remaining each allowance 2mm~3mm；Heat treatment, quenched 225~285HB, it is desirable to even tissue, crystal grain refinement, and eliminate stress；Smart car, each portion of smart car, cylindrical chi is to desired size at car left end 4mm, in case clamping is used during mill endoporus, right-hand member is cylindrical to stay mill amount 0.6mm 0.8mm, tank car is to size, endoporus allowance 0.5mm 0.6mm, back chipping groove, tapered hole stay mill amount 0.6mm 0.8mm, length allowance 0.8mm 1.2mm, and surplus is placed at left end 4mm；Line：Draw hole and the line of rabbet joint；The present invention solves original processing technique and hidden danger of quality caused by operating method, quenching distortion, Machining stress deformation and clamping deformation can be preferably eliminated, so as to ensure that the crudy of part.

Description

Elastic piston ring Work piece processing method

Technical field

The present invention relates to field of machining, and in particular to elastic piston ring Work piece processing method.

Background technology

Elastic expansion ring kind is more, is mainly used to process the parts such as the middle barrel of all kinds of war products, middle cylinder, and it manufactures matter Amount directly affects the crudy and performance of subsequent product.Elastic expansion ring category thin-walled multi-notch element, in cold heat plus fourth process In, due to there is the factor such as various stress and clamping workpiece are improper, making, elastic expansion ring machining deformation is serious, and percent defective is up to 70%~80%.Manufacturer is often using " one " modes of production are protected in throwing five, cause larger economic loss.

The content of the invention

In order to solve the above problems, the present invention provides one kind and solves original processing technique and quality caused by operating method Hidden danger, quenching distortion, Machining stress deformation and clamping deformation can be preferably eliminated, so as to ensure that the crudy of part Elastic piston ring Work piece processing method.

Elastic piston ring Work piece processing method of the present invention, comprises the following steps：

The first step, rough turn, rough turn each portion, the Excircle machining at left end 4mm do following process and presented a theatrical performance as the last item on a programme, remaining is each to desired size Allowance 2mm~3mm；

Second step, heat treatment, quenched 225~285HB, it is desirable to even tissue, crystal grain refinement, and eliminate stress；

3rd step, smart car, each portion of smart car, cylindrical chi is to desired size at car left end 4mm, in case clamping is used during mill endoporus, right-hand member Cylindrical to stay mill amount 0.6mm-0.8mm, tank car to size, endoporus allowance 0.5mm-0.6mm, back chipping groove, tapered hole stays mill amount 0.6mm-0.8mm, length allowance 0.8mm-1.2mm, and surplus is placed at left end 4mm；

4th step, line：Draw hole and the line of rabbet joint；

5th step, machining center, upper dividing head, drilling, and groove milling, pay attention at cut 2mm not millings should being stayed to lead to, remaining milling to chi It is very little, it is desirable to which that hole, groove are concentric, circumference uniform distribution, and morpheme is consistent with dimensional accuracy；

6th step, heat treatment quench 40-45HRC, sandblasting, oxidation, during heat treatment in addition to ensureing technological parameter rationally, simultaneously Answer proper use of quenching accessory；

7th step, heat treatment, artificial aging；

8th step, tool grinder, by notches cut, it is desirable to which notch is symmetrical with notch, while answers intermittent-cutting, anti-overheat；

9th step, pincers, at tin welding notch, be welded, and gently be tapped, and listen whether its sound has echo, if Sha Erwu Echo, it is exactly not weld, it is necessary to reweld；

Tenth step, plain grinding：Check whether welding is firm, after confirmation, grind both ends of the surface, see light；

11st step, inner circle mill, after confirmation welds, endoporus and taper hole are ground, fine grinding amount 0.15mm-0.2mm is stayed, adopts, use floral disc Clamping, technique is presented a theatrical performance as the last item on a programme at pressing plate clamping left end 4mm large cylindricals, the amount of feeding do not answer it is excessive in order to avoid overheating deforming, using mandrel inspection Taper, contact surface should be up to more than 90%；

12nd step, peripheral milling, after confirmation welds, using mandrel clamping, while cylindrical grinding stays fine grinding amount 0.15mm-0.2mm, folder Holding force can not be too big, and otherwise weld distending deforms；

13rd step, heat treatment, artificial aging；

14th step, plain grinding, check whether welding is firm, after confirmation, grind both ends of the surface, see light；

15th step, inner circle mill, after confirmation welds, endoporus and taper hole are ground, clamping uses floral disc, and it is outer greatly that pressing plate clamps left end 4mm Circle place, the amount of feeding are not answered excessive in order to avoid overheating deforming, and using mandrel inspection taper, contact surface should be up to more than 90%；

16th step, peripheral milling, after confirmation welds, using mandrel clamping, while cylindrical grinding, chucking power can not be too big, otherwise weld Connect place's distending deformation；

17th step, wire cutting, endoporus is corrected, lower end is cut and presents a theatrical performance as the last item on a programme, ensure excircle dimension；

18th step, pincers：To the 17th step, whether inspection welds the step of compounding operation the 9th, if for above process not prison welding, It need in time be rewelded, and be re-worked from the 9th step, to eliminate deformation and error, check peripheral milling weld bond quality, and clear up All corner angle, upper antirust oil are to be installed.

The present invention solves original processing technique and hidden danger of quality caused by operating method, can preferably eliminate quenching and become Shape, Machining stress deformation and clamping deformation, so as to ensure that the crudy of part.

Embodiment

Elastic piston ring Work piece processing method of the present invention, comprises the following steps：

The first step, rough turn, rough turn each portion, the Excircle machining at left end 4mm do following process and presented a theatrical performance as the last item on a programme, remaining is each to desired size Allowance 2mm~3mm；

Second step, heat treatment, quenched 225~285HB, it is desirable to even tissue, crystal grain refinement, and eliminate stress；

3rd step, smart car, each portion of smart car, cylindrical chi is to desired size at car left end 4mm, in case clamping is used during mill endoporus, right-hand member Cylindrical to stay mill amount 0.6mm-0.8mm, tank car to size, endoporus allowance 0.5mm-0.6mm, back chipping groove, tapered hole stays mill amount 0.6mm-0.8mm, length allowance 0.8mm-1.2mm, and surplus is placed at left end 4mm；

4th step, line：Draw hole and the line of rabbet joint；

5th step, machining center, upper dividing head, drilling, and groove milling, pay attention at cut 2mm not millings should being stayed to lead to, remaining milling to chi It is very little, it is desirable to which that hole, groove are concentric, circumference uniform distribution, and morpheme is consistent with dimensional accuracy；

6th step, heat treatment quench 40-45HRC, sandblasting, oxidation, during heat treatment in addition to ensureing technological parameter rationally, simultaneously Answer proper use of quenching accessory；

7th step, heat treatment, artificial aging；

8th step, tool grinder, by notches cut, it is desirable to which notch is symmetrical with notch, while answers intermittent-cutting, anti-overheat；

9th step, pincers, at tin welding notch, be welded, and gently be tapped, and listen whether its sound has echo, if Sha Erwu Echo, it is exactly not weld, it is necessary to reweld；

Tenth step, plain grinding：Check whether welding is firm, after confirmation, grind both ends of the surface, see light；

11st step, inner circle mill, after confirmation welds, endoporus and taper hole are ground, fine grinding amount 0.15mm-0.2mm is stayed, adopts, use floral disc Clamping, technique is presented a theatrical performance as the last item on a programme at pressing plate clamping left end 4mm large cylindricals, the amount of feeding do not answer it is excessive in order to avoid overheating deforming, using mandrel inspection Taper, contact surface should be up to more than 90%；

12nd step, peripheral milling, after confirmation welds, using mandrel clamping, while cylindrical grinding stays fine grinding amount 0.15mm-0.2mm, folder Holding force can not be too big, and otherwise weld distending deforms；

13rd step, heat treatment, artificial aging；

14th step, plain grinding, check whether welding is firm, after confirmation, grind both ends of the surface, see light；

15th step, inner circle mill, after confirmation welds, endoporus and taper hole are ground, clamping uses floral disc, and it is outer greatly that pressing plate clamps left end 4mm Circle place, the amount of feeding are not answered excessive in order to avoid overheating deforming, and using mandrel inspection taper, contact surface should be up to more than 90%；

16th step, peripheral milling, after confirmation welds, using mandrel clamping, while cylindrical grinding, chucking power can not be too big, otherwise weld Connect place's distending deformation；

17th step, wire cutting, endoporus is corrected, lower end is cut and presents a theatrical performance as the last item on a programme, ensure excircle dimension；

18th step, pincers：To the 17th step, whether inspection welds the step of compounding operation the 9th, if for above process not prison welding, It need in time be rewelded, and be re-worked from the 9th step, to eliminate deformation and error, check peripheral milling weld bond quality, and clear up All corner angle, upper antirust oil are to be installed.

Claims (1)

1. a kind of elastic piston ring Work piece processing method, it is characterised in that comprise the following steps：

The first step, rough turn, rough turn each portion, the Excircle machining at left end 4mm do following process and presented a theatrical performance as the last item on a programme, remaining is each to desired size Allowance 2mm~3mm；

Second step, heat treatment, quenched 225~285HB, it is desirable to even tissue, crystal grain refinement, and eliminate stress；

3rd step, smart car, each portion of smart car, cylindrical chi is to desired size at car left end 4mm, in case clamping is used during mill endoporus, right-hand member Cylindrical to stay mill amount 0.6mm-0.8mm, tank car to size, endoporus allowance 0.5mm-0.6mm, back chipping groove, tapered hole stays mill amount 0.6mm-0.8mm, length allowance 0.8mm-1.2mm, and surplus is placed at left end 4mm；

4th step, line：Draw hole and the line of rabbet joint；

5th step, machining center, upper dividing head, drilling, and groove milling, pay attention at cut 2mm not millings should being stayed to lead to, remaining milling to chi It is very little, it is desirable to which that hole, groove are concentric, circumference uniform distribution, and morpheme is consistent with dimensional accuracy；

6th step, heat treatment quench 40-45HRC, sandblasting, oxidation, during heat treatment in addition to ensureing technological parameter rationally, simultaneously Answer proper use of quenching accessory；

7th step, heat treatment, artificial aging；

8th step, tool grinder, by notches cut, it is desirable to which notch is symmetrical with notch, while answers intermittent-cutting, anti-overheat；

9th step, pincers, at tin welding notch, be welded, and gently be tapped, and listen whether its sound has echo, if Sha Erwu Echo, it is exactly not weld, it is necessary to reweld；

Tenth step, plain grinding：Check whether welding is firm, after confirmation, grind both ends of the surface, see light；

11st step, inner circle mill, after confirmation welds, endoporus and taper hole are ground, fine grinding amount 0.15mm-0.2mm is stayed, adopts, use floral disc Clamping, technique is presented a theatrical performance as the last item on a programme at pressing plate clamping left end 4mm large cylindricals, the amount of feeding do not answer it is excessive in order to avoid overheating deforming, using mandrel inspection Taper, contact surface should be up to more than 90%；

12nd step, peripheral milling, after confirmation welds, using mandrel clamping, while cylindrical grinding stays fine grinding amount 0.15mm-0.2mm, folder Holding force can not be too big, and otherwise weld distending deforms；

13rd step, heat treatment, artificial aging；

14th step, plain grinding, check whether welding is firm, after confirmation, grind both ends of the surface, see light；

15th step, inner circle mill, after confirmation welds, endoporus and taper hole are ground, clamping uses floral disc, and it is outer greatly that pressing plate clamps left end 4mm Circle place, the amount of feeding are not answered excessive in order to avoid overheating deforming, and using mandrel inspection taper, contact surface should be up to more than 90%；

16th step, peripheral milling, after confirmation welds, using mandrel clamping, while cylindrical grinding, chucking power can not be too big, otherwise weld Connect place's distending deformation；

17th step, wire cutting, endoporus is corrected, lower end is cut and presents a theatrical performance as the last item on a programme, ensure excircle dimension；

18th step, pincers：To the 17th step, whether inspection welds the step of compounding operation the 9th, if for above process not prison welding, It need in time be rewelded, and be re-worked from the 9th step, to eliminate deformation and error, check peripheral milling weld bond quality, and clear up All corner angle, upper antirust oil are to be installed.