Method for reaming and necking spring seat on a general lathe

Abstract

The application discloses a processing method for reaming and necking spring seat by using a common lathe, and comprises the following steps: S1, reaming processing, S2, necking processing and S3, qualified quality inspection; the step S1, reaming processing, comprises the following steps: S11, equipment debugging, debugging the common lathe, and selecting a limiting punch, an angle punch and an opening bushing; S12, data calculation, obtaining data for reaming according to the size of the spring seat reaming and in combination with the model of the punch; S13, reaming preparation, clamping and fixing the spring seat, then vertically upwardly arranging a cutter tooth, clamping the cutter, making the center of the A shaft and the center of the tailstock center on the same axis and aligning, and sucking the magnetic lever micrometer on the C shaft; the processing method for reaming and necking the spring seat by using the common lathe can solve the problems that the part is deformed due to too large feeding amount when reaming and necking the spring seat into the inward ring groove, the reaming angle is small due to too small feeding amount, and the necking is not in place.

Description

TECHNICAL FIELD

[0001] The present application relates to spring seat processing technical field, specifically to a kind of machining method of spring seat hole expansion necking with ordinary lathe. BACKGROUND

[0002] Spring is the important component in box shell, can to the overall stability of box and the body start time play buffering effect, so the bottom support form of box generally adopts spring support.But the spring seat in the prior art generally adopts integral structure;

[0003] At present, when spring seat is expanded and necked, single punch is generally used to expand and neck spring seat into inner ring groove, at this time, the position size and expansion angle of spring seat cannot meet the technical requirements of product drawing at the same time, the position size of spring seat is qualified, the expansion angle is small or the expansion angle is qualified, and the phenomenon of part deformation occurs, but the machining method of spring seat expansion and necking in the prior art has the problems that when spring seat is expanded and necked into inner ring groove, part deformation is caused due to too large feed amount, too small feed amount causes small expansion angle, and necking is not in place, therefore, a kind of machining method of spring seat hole expansion necking with ordinary lathe is needed to solve the above problems. SUMMARY

[0004] The purpose of the present application is to provide a kind of machining method of spring seat hole expansion necking with ordinary lathe, including the following steps: S1 expansion processing, S2 necking processing and S3 qualified inspection:

[0005] Step S1 expansion processing includes the following steps:

[0006] S11: equipment debugging, ordinary lathe is debugged, and limit punch, angle punch and opening bush are selected;

[0007] S12: data calculation, according to the size of spring seat expansion, the model of punch is combined to obtain data ready for expansion;

[0008] S13: expansion preparation, spring seat is clamped and fixed, then a cutter tooth is vertically upward, then the cutter is clamped, the center of A axis and the center of tailstock center are on the same axis and are aligned, the magnetic force lever micrometer is absorbed on C axis, the table head is explored in the high point of the smooth guide shaft inside the expansion drill front end, X axis is uniformly reciprocated, tailstock is adjusted, table pointer jumps within 0.02mm, tailstock is fastened, then table head is placed at the high point above the smooth guide shaft of expansion drill front end, A axis is uniformly rotated in the same direction, the fastening screw on A axis is adjusted, table pointer jumps within 0.02mm, tailstock fine adjustment knob is tightened, and A axis screw is fastened;

[0009] S14: feeding processing, the guide rod moves along the axis of the positioning hole to the direction away from the reference hole, so that the cutting part of the processing cutter expands the reference hole;

[0010] The step S2 necking processing comprises the following steps:

[0011] S21, pre-forming, using a spring and an open bushing to clamp the part on a general lathe, after clamping, starting the equipment and using a limiting punch to top the spring seat to the position size required by the product drawing;

[0012] S22, secondary forming, expanding and necking the spring seat to the angle required by the product drawing using an angle punch;

[0013] S23, final forming, separating the functions of a punch into a limiting punch and an angle punch, and the limiting size and the angle of the angle punch are consistent with the requirements of the product drawing, using the limiting and angle punches to expand and neck the spring seat can stably realize expanding and necking the spring seat into the inner ring groove and meet the technical requirements of the product drawing;

[0014] The step S3 qualified inspection comprises the following steps:

[0015] S31, deformation inspection, observing whether the shape and hole of the processed spring seat are deformed, if not, the next step can be performed;

[0016] S32, angle inspection, measuring the angle of the spring seat hole that has passed the deformation inspection by using a micrometer and recording the angle data;

[0017] S33, size inspection, detecting the processing size of the spring seat that has passed the angle inspection and recording the data.

[0018] Preferably, the expanded polytetrafluoroethylene material further comprises an extrusion aid.

[0019] Preferably, the ripening comprises: sealing the uniformly mixed raw materials, and ripening at 35-45°C for 18-30h to obtain the ripened mixture;

[0020] The degreasing comprises: removing the extrusion aid at 100-180°C for 2-15min to obtain the degreased sheet;

[0021] The stretching comprises: stretching at 150-300°C, and the stretching multiple is 2-20 times.

[0022] Preferably, the step S2 further comprises:

[0023] S24: batch processing, tool consistency guarantee loosening tailstock fine adjustment, remove the tool, ensure that the same batch clamping position variation is not big, control the consistency and interchangeability of the tool processing, workpiece complete processing.

[0024] Preferably, the step S11 device debugging, the general lathe is CA6140 general lathe, wherein the material of the punch is 45 steel, the hardness is HRC50~55, and the roughness Ra3.2 is not noted.

[0025] Preferably, the step S23, final forming, the outer side of the spring seat blank is machined, the thickness of the partial area cylinder is reduced, and the preformed thick-walled cylinder with a taper mouth is obtained.

[0026] Preferably, in the step S14, a cooling water pipe is arranged at the blind hole at the end position of the installed reaming drill bit, and the cooling water is used for cooling and flushing iron filings when the reaming drill bit reaming advances.

[0027] Preferably, in the step S11, three slag discharge holes with a diameter of 5 mm are arranged on the shell surface on the side of the back of the limiting punch.

[0028] Preferably, in the step S21, the spring seat is jacked to the position size required by the product drawing by using the limiting punch, the feeding depth is divided into three times, and each depth is 2 mm, until the reaming forming.

[0029] Preferably, in the step S21, the spring seat is jacked to the position size required by the product drawing by using the limiting punch, the feeding depth is divided into six times, and each depth is 1 mm, until the reaming forming.

[0030] Preferably, the spring seats after reaming and closing of the same batch are stored.

[0031] Compared with the prior art, the scheme designs a machining method for reaming and closing of a spring seat by using a general lathe, and has the following beneficial effects:

[0032] (1) The machining method can solve the problems of insufficient flaring angle and part deformation when a single punch is used for reaming and closing, the functions of one punch are separated into a limiting punch and an angle punch, the limiting size and the angle of the angle punch are consistent with the requirements of the product drawing, and therefore the reaming and closing of the spring seat to the inner ring groove and the technical requirements of the product drawing can be stably realized by using the limiting and angle punches.

[0033] (2) The machining method can solve the problems of part deformation caused by excessive feeding amount, small reaming angle caused by small feeding amount, and not closed in place when the spring seat is reamed and closed into the inner ring groove. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0035] Embodiment 1

[0036] The present application provides a technical solution: a processing method for reaming and necking spring seat by using a general lathe, characterized by comprising the following steps: S1 reaming processing, S2 necking processing and S3 qualified quality inspection.

[0037] Step S1 reaming processing comprises the following steps:

[0038] S11: equipment debugging, debugging the general lathe, and selecting the limit punch, angle punch and opening bushing;

[0039] S12: data calculation, obtaining data for reaming according to the size of the spring seat reaming and in combination with the model of the punch;

[0040] S13: reaming preparation, clamping and fixing the spring seat, then vertically upward a cutter tooth, then clamping the cutter, making the center of A shaft and the center of tailstock center on the same axis and aligning, absorbing the magnetic lever micrometer on the C shaft, putting the meter head into the high point on the inside of the smooth guide shaft at the front end of the reaming drill, uniformly and uniformly reciprocating the X shaft, adjusting the tailstock to make the meter pointer jump within 0.02mm, tightening the tailstock, then putting the meter head on the high point above the smooth guide shaft at the front end of the reaming drill, rotating the A shaft at a uniform speed in the same direction, adjusting the tightening screw on the A shaft to make the meter pointer jump within 0.02mm, tightening the tailstock fine adjustment knob and the A shaft screw;

[0041] S14: feeding processing, moving the guide rod along the axis of the positioning hole away from the reference hole, so that the cutting part of the machining tool reams the reference hole;

[0042] Step S2 necking processing comprises the following steps:

[0043] S21, preforming, using the spring clamp and opening bushing clamp parts on the general lathe, clamping, then starting the equipment and using the limit punch to top the spring seat to the position size required by the product drawing;

[0044] S22, secondary forming, using the angle punch to ream and neck the spring seat to the angle required by the product drawing;

[0045] S23, final forming, separating the functions of one punch into a limiting punch and an angle punch, and the limiting size and the angle of the angle punch are consistent with the product drawing requirements, using the limiting and angle punches to expand and close the hole of the spring seat can stably achieve the expansion and closing of the spring seat to the inner ring groove and meet the technical requirements of the product drawing;

[0046] The step S3 qualified quality inspection includes the following steps:

[0047] S31, deformation quality inspection, observing whether the shape and hole of the processed spring seat are deformed, and if not, the next step can be performed;

[0048] S32, angle quality inspection, measuring the angle of the spring seat hole after deformation quality inspection by using a micrometer, and recording the angle data;

[0049] S33, size quality inspection, detecting the processing size of the spring seat after angle quality inspection, and recording the data.

[0050] The step S2 further includes:

[0051] S24: batch processing, ensuring the consistency of the tool, loosening the tail seat fine adjustment, removing the tool, ensuring that the clamping position of the same batch does not change much, controlling the consistency and interchangeability of the tool processing, and completing the workpiece processing.

[0052] The step S11 device debugging, the ordinary lathe is CA6140 ordinary lathe, wherein the material of the punch is 45 steel, the hardness is HRC50~55, and the roughness Ra3.2 is not noted.

[0053] The step S23, final forming, machining the outer side of the spring seat blank, reducing the thickness of the partial area cylinder, and obtaining a preformed thick-walled cylinder with a taper mouth.

[0054] In the step S14, a cooling water pipe is arranged at the blind hole of the end position of the installed reaming drill bit, and the cooling water is cooled and the iron chips are flushed when the reaming drill bit reaming advances.

[0055] In step S11, three slag discharge holes with a diameter of 5mm are arranged on the surface of the shell on the back side of the limiting punch, and the three slag discharge holes are arranged in parallel.

[0056] In the step S21, the spring seat is pushed to the position size required by the product drawing by using the limiting punch, and the feeding depth is divided into three times, each time the depth is 2mm, until the reaming forming is completed.

[0057] The spring seats after reaming and closing of the same batch are stored.

[0058] The present application first clamps the part on a common lathe using a clamping spring and an open bushing, and after clamping, starts the equipment and uses a limiting punch to top the spring seat to the position size required by the product drawing;

[0059] The present application further uses an angle punch to ream and close the spring seat to the angle required by the product drawing, to meet the final technical requirements of the product drawing.

[0060] Compared with the problem of insufficient flaring angle and part deformation when a single punch is used for reaming and closing, the functions of one punch are separated into a limiting punch and an angle punch, and the limiting size and the angle of the angle punch are consistent with the requirements of the product drawing, so that the reaming and closing of the spring seat using the limiting and angle punches can stably achieve the reaming and closing of the spring seat into the inner ring groove and meet the technical requirements of the product drawing.

[0061] Embodiment 2

[0062] A machining method for reaming and closing a spring seat on a common lathe, comprising the following steps: S1 reaming processing, S2 closing processing and S3 qualified quality inspection:

[0063] Step S1 reaming processing comprises the following steps:

[0064] S11: equipment debugging, debugging the common lathe, and selecting a limiting punch, an angle punch and an open bushing;

[0065] S12: data calculation, according to the size of the spring seat reaming, combined with the model of the punch, to obtain the data ready for reaming;

[0066] S13: reaming preparation, clamping and fixing the spring seat, then vertically upward to one cutter tooth, then clamping the cutter, making the center of A shaft and the center of tailstock center on the same axis and aligning, absorbing the magnetic lever micrometer on the C shaft, putting the meter head into the high point on the inner side of the smooth guide shaft at the front end of the reaming drill, uniformly and uniformly reciprocating the X shaft, adjusting the tailstock to make the meter pointer jump within 0.02mm, tightening the tailstock, then putting the meter head above the high point of the smooth guide shaft at the front end of the reaming drill, rotating the A shaft in the same direction at a uniform speed, adjusting the tightening screw on the A shaft to make the meter pointer jump within 0.02mm, adjusting the tailstock fine tuning knob and tightening the A shaft screw;

[0067] S14: feed processing, the guide rod moves along the axis of the positioning hole away from the reference hole, so that the cutting part of the machining cutter reams the reference hole;

[0068] Step S2 closing processing comprises the following steps:

[0069] S21, preforming, clamping the part on a common lathe using a clamping spring and an open bushing, clamping, starting the equipment and using a limiting punch to top the spring seat to the position size required by the product drawing;

[0070] S22, secondary forming, reusing the angle punch to expand and close the hole of the spring seat to the angle required by the product drawing;

[0071] S23, final forming, separating the functions of one punch into a limiting punch and an angle punch, and the limiting size and the angle of the angle punch are consistent with the requirements of the product drawing, using the limiting and angle punches to expand and close the hole of the spring seat can stably achieve the expansion and closing of the hole of the spring seat into the inner ring groove and meet the technical requirements of the product drawing;

[0072] Step S3 qualified inspection includes the following steps:

[0073] S31, deformation inspection, observing whether the shape and hole of the processed spring seat are deformed, and if not, the next step can be performed;

[0074] S32, angle inspection, measuring the angle of the spring seat hole after deformation inspection by using a micrometer, and recording the angle data;

[0075] S33, size inspection, detecting the processing size of the spring seat after angle inspection, and recording the data.

[0076] Step S2 further includes:

[0077] S24: batch processing, ensuring the consistency of the tool, loosening the tail seat fine adjustment, removing the tool, ensuring that the clamping position of the same batch does not change much, controlling the consistency and interchangeability of the tool processing, and completing the processing of the workpiece.

[0078] The step S11 device debugging, the ordinary lathe is CA6140 ordinary lathe, wherein the material of the punch is 45 steel, the hardness is HRC50~55, and the roughness Ra3.2 is not noted.

[0079] The step S23, final forming, machining the outer side of the spring seat blank to reduce the thickness of the partial area cylinder, and obtaining a precast thick-walled cylinder with a taper.

[0080] In the step S14, a cooling water pipe is arranged at the blind hole at the end position of the installed reaming drill bit, and the cooling water is used for cooling and flushing iron chips when the reaming drill bit reams.

[0081] In step S11, three slag discharge holes with a diameter of 5mm are arranged on the surface of the shell on the back side of the limiting punch, and the three slag discharge holes are arranged in parallel.

[0082] In the step S21, the spring seat is pushed to the position size required by the product drawing by using the limiting punch, and the feeding depth is six times, and the depth is 1mm each time until the expansion forming.

[0083] The spring seats after the same batch of hole expansion and closing are stored.

[0084] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the present application can be implemented in other particular forms without departing from the spirit or essential characteristics thereof. The presently disclosed embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

[0085] Furthermore, it should be understood that although the description herein is made on the basis of the embodiments, not every embodiment contains only one independent technical solution, and the description herein is made in this way only for the sake of clarity, and those skilled in the art should consider the description as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments which can be understood by those skilled in the art.

Claims

1. A method for reaming and facing a spring seat on a lathe, characterized in that: It comprises the following steps: S1 reaming, S2 necking and S3 qualified inspection: Step S1 reaming comprises the following steps: S11: equipment debugging, debugging the ordinary lathe, and selecting the limit punch, angle punch and open bushing; S12: data calculation, according to the size of the spring seat reaming, combined with the model of the punch, get the data ready to ream; S13: reaming preparation, clamping and fixing the spring seat, then vertically upward a cutter tooth, then clamp the cutter, make the center of A axis and the center of tailstock center on the same axis and find the right, the magnetic force lever micrometer is absorbed on the C axis, the table head is explored in the smooth guide shaft of the reaming drill front end, the X axis is uniformly reciprocating, the tailstock is adjusted, the table pointer is made to jump within 0.02mm, the tailstock is tightened, then the table head is placed on the smooth guide shaft above the reaming drill front end, the A axis is rotated in the same direction, the tightening screw on the A axis is adjusted, the table pointer is made to jump within 0.02mm, the tailstock fine adjustment knob is tightened, and the A axis screw is tightened; S14: feeding processing, the guide rod moves along the axis of the positioning hole to the direction away from the reference hole, so that the cutting part of the machining tool reams the reference hole; Step S2 necking comprises the following steps: S21, preforming, using spring clamp and open bushing to clamp the part on the ordinary lathe, after clamping, starting the equipment and using the limit punch to top the spring seat to the position size required by the product drawing; S22, secondary forming, using the angle punch to ream and neck the spring seat to the angle required by the product drawing; S23, final forming, separating the functions of one punch into limit punch and angle punch, and the limit size and the angle of the angle punch are consistent with the product drawing, using the limit and angle two punches to ream and neck the spring seat can stably realize reaming and necking the spring seat into the inner ring groove and meet the technical requirements of the product drawing; Step S3 qualified inspection comprises the following steps: S31, deformation inspection, observing whether the shape and hole of the processed spring seat are deformed, if not, the next step can be performed; S32, angle inspection, measuring the angle of the spring seat hole through the micrometer after deformation inspection, and recording the angle data; S33, size inspection, detecting the processing size of the spring seat after angle inspection, and recording the data.

2. The method of claim 1, wherein the method is characterized in that: Step S2 further comprises: S24: batch processing, loosening the tailstock fine adjustment to ensure that the clamping position of the same batch does not change much, controlling the consistency and interchangeability of the cutter processing, and completing the processing of the workpiece.

3. The method of claim 1, wherein the method further comprises: drilling a hole in the spring seat; and reaming the hole in the spring seat. The step S11 equipment debugging, the ordinary lathe is CA6140 ordinary lathe, the material of the punch is 45 steel, the hardness is HRC50~55, and the roughness Ra3.2 is not noted. ​ 4. The method of claim 1, wherein the method further comprises: performing a roughing operation on the spring seat; and performing a finishing operation on the spring seat. In the step S14, a cooling water pipe is arranged at the blind hole of the end of the installed reaming drill bit, which is cooled and flushed by the cooling water during reaming feeding.

5. The method of claim 1, wherein the method further comprises: performing a roughing operation on the spring seat; and performing a finishing operation on the spring seat. In the step S14, a cooling water pipe is arranged at the blind hole of the end of the installed reaming drill bit, which is cooled and flushed by the cooling water during reaming feeding.

6. The method of claim 1, wherein the method further comprises: using a common lathe to bore and neck the spring seat. Three slagging holes with a diameter of 5 mm are arranged on the surface of the shell on the side of the blade of the limiting punch in step S11.

7. The method of claim 1, wherein the method further comprises: drilling a hole in the spring seat; and reaming the hole in the spring seat. In step S21, the spring seat is positioned to the position size required by the product drawing by using the limiting punch, and the feeding depth is divided into three times, each time with a depth of 2 mm, until the hole expansion forming.

8. The method of claim 1, wherein the method further comprises: using a lathe to bore and neck the spring seat. In step S21, the spring seat is positioned to the position size required by the product drawing by using the limiting punch, and the feeding depth is divided into six times, each time with a depth of 1 mm, until the hole expansion forming.

9. The method of claim 1, wherein the method further comprises: using a lathe to bore and neck the spring seat. The spring seats after hole expansion and closing of the same batch are stored.