阅读说明：本技术 一种调心滚子轴承的密封槽车加工工艺 (Sealed groove turning process of self-aligning roller bearing ) 是由 李凤龙 路长 李友成 于 2020-12-31 设计创作，主要内容包括：本发明属于轴承加工领域,尤其是一种调心滚子轴承的密封槽车加工工艺,针对现有调心滚子轴承的密封槽车加工过程中密封槽容易受到径向切削力而发生变形,且在车加工时由于无法及时清理附着的碎屑,加工工艺也存在漏洞,容易造成加工误差,加工失误率较高的问题,现提出如下方案,包括以下步骤：S1：使用提升机将物料送进第一台机床中的上料道中,上料道由机械手把套圈送入夹紧机构中,夹紧机构中预先安装定位筒,套圈安装在定位筒中。本发明的密封槽车加工过程中不易受到径向切削力而发生变形,加工稳定性较好,且在车加工时可以及时清理附着的碎屑,加工过程更加优化,较大程度的避免加工误差,降低了加工难度和失误率。(The invention belongs to the field of bearing machining, in particular to a sealed groove turning machining process of a self-aligning roller bearing, and aims to solve the problems that a sealed groove of the conventional self-aligning roller bearing is easy to deform due to radial cutting force, and the machining process has a leak, easily causes machining errors and has high machining error rate due to the fact that attached chips cannot be cleaned in time during turning, the following scheme is proposed, and the sealed groove turning machining process comprises the following steps: s1: the material is fed into a feeding channel in a first machine tool by using a hoister, the feeding channel is fed into a clamping mechanism by a mechanical handle ferrule, a positioning cylinder is pre-installed in the clamping mechanism, and the ferrule is installed in the positioning cylinder. The sealed groove turning machine is not easy to deform due to radial cutting force in the turning process, has good processing stability, can timely clean attached fragments in the turning process, is more optimized in the processing process, avoids processing errors to a greater extent, and reduces processing difficulty and error rate.)

1. A sealed groove turning process of a self-aligning roller bearing is characterized by comprising the following steps:

s1: feeding the material into a feeding channel in a first machine tool by using a lifter, wherein the feeding channel is fed into a clamping mechanism by a mechanical handle ferrule, a positioning cylinder is pre-installed in the clamping mechanism, the ferrule is installed in the positioning cylinder, and the positioning cylinder, the ferrule and an outer clamping tire are positioned on the same horizontal plane;

s2: a cooling cavity is formed in the positioning cylinder, cooling liquid is injected into the cooling cavity, the opening of the positioning cylinder is sealed after the injection is finished, and the cooling liquid can reduce the overall temperature of the positioning cylinder and the surface temperature of the ferrule;

s3: the small chamfer surface of the ferrule is turned by using the cutter bar and the turning tool, heat generated on the ferrule is quickly absorbed by the positioning barrel in the turning process, and the temperature of the ferrule can be maintained, so that the deformation of the sealing groove caused by the heating of the ferrule can be well prevented, the ferrule is wrapped by the positioning barrel, and the positioning barrel can effectively prevent the deformation of the ferrule after the ferrule and the outer clamping tire are positioned on the same plane;

s4: the cutter bar of S3 is clamped in the cutter holder, and the compression screw is directly screwed, the cutter holder in the cutter holder does not need to extend out of the cutter holder, a notch is formed in the side surface of the cutter holder for compressing and dismounting the turning tool, the cutter point is prevented from being damaged by accidental vibration of the cutter, the normal cutting of the cutter is ensured, and the phenomena that scrap iron winds the cutter and scratches a workpiece are avoided;

s5: the method comprises the following steps of (S3) arranging a through hole on a cutter bar, arranging a cross rod in the through hole, arranging a motor on the cross rod, sleeving a fan blade on an output shaft of the motor, electrifying the motor and driving the fan blade to rotate when a lathe tool carries out lathe machining, driving air to flow by the fan blade, blowing away debris in the lathe machining process, preventing the debris from being accumulated to influence machining accuracy, arranging a collecting box at the bottom of an outer clamping tire, arranging a separation net in the collecting box, arranging a vent hole at the bottom of the collecting box, arranging a fan in the vent hole, adsorbing the blown debris by the fan, filtering and collecting the debris by the separation net, and ensuring a working environment;

s6: after turning, the sleeve ring enters a first middle lifting machine along a blanking channel, the middle lifting machine reversely conveys the sleeve ring to a feeding channel of a second machine tool, the sleeve ring is also conveyed to a clamping mechanism by a mechanical handle to turn a large chamfer surface and a rough turning sealing groove, during rough turning, the size outside the groove is measured by taking the size of the excircle of a step as a reference, the width of the groove is measured by taking the size of the inner hole outside the groove as a reference, wherein a margin of 0.05-0.08mm is reserved during angle turning, then the sleeve ring enters a second middle lifting machine from the blanking channel, the sleeve ring is conveyed to a feeding channel of a third machine tool by the middle lifting machine in the same direction, and then the mechanical handle moves to convey the sleeve ring to the clamping mechanism to finely turn the sealing groove.

2. The turning process for the sealing groove of the self-aligning roller bearing according to claim 1, wherein in S3, the turning tool is a carbide insert.

3. The turning process for a sealed groove of a self-aligning roller bearing according to claim 1, wherein in S3, the turning tool has a rake angle of 10.5 ° to 11.5 °.

4. The turning process for a sealed groove of a self-aligning roller bearing according to claim 1, wherein in the step S3, the turning tool has a back angle of 11.5 ° to 12.5 °.

5. The turning process of the sealing groove of the self-aligning roller bearing according to claim 1, wherein in S2, an anti-slip protection washer is mounted on an inner wall of the positioning cylinder, and the anti-slip protection washer contacts with the ferrule.

6. The turning process of the sealing groove of the self-aligning roller bearing according to claim 1, wherein in the step S5, the motor is fixedly connected to the cross bar by bolts.

Technical Field

The invention relates to the technical field of bearing machining, in particular to a machining process of a sealing groove lathe of a self-aligning roller bearing.

Background

The self-aligning roller bearing has double rows of rollers, the outer ring has 1 common spherical raceway, the inner ring has 2 raceways and inclines to form an angle relative to the bearing axis, the ingenious structure enables the self-aligning roller bearing to have automatic self-aligning performance, so the self-aligning roller bearing is not easily influenced by the angle between a shaft and a bearing box seat to an error or shaft bending, and is suitable for occasions with installation errors or shaft bending to cause angle errors;

however, the sealing groove of the existing self-aligning roller bearing is easy to deform due to radial cutting force during turning, and the machining process also has a leak due to the fact that attached chips cannot be cleaned in time during turning, so that machining errors are easily caused, and the machining error rate is high.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a machining process for a sealing groove of a self-aligning roller bearing.

In order to achieve the purpose, the invention adopts the following technical scheme:

a sealed groove turning process of a self-aligning roller bearing comprises the following steps:

s1: feeding the material into a feeding channel in a first machine tool by using a lifter, wherein the feeding channel is fed into a clamping mechanism by a mechanical handle ferrule, a positioning cylinder is pre-installed in the clamping mechanism, the ferrule is installed in the positioning cylinder, and the positioning cylinder, the ferrule and an outer clamping tire are positioned on the same horizontal plane;

s2: a cooling cavity is formed in the positioning cylinder, cooling liquid is injected into the cooling cavity, the opening of the positioning cylinder is sealed after the injection is finished, and the cooling liquid can reduce the overall temperature of the positioning cylinder and the surface temperature of the ferrule;

s3: the small chamfer surface of the ferrule is turned by using the cutter bar and the turning tool, heat generated on the ferrule is quickly absorbed by the positioning barrel in the turning process, and the temperature of the ferrule can be maintained, so that the deformation of the sealing groove caused by the heating of the ferrule can be well prevented, the ferrule is wrapped by the positioning barrel, and the positioning barrel can effectively prevent the deformation of the ferrule after the ferrule and the outer clamping tire are positioned on the same plane;

s4: the cutter bar of S3 is clamped in the cutter holder, and the compression screw is directly screwed, the cutter holder in the cutter holder does not need to extend out of the cutter holder, a notch is formed in the side surface of the cutter holder for compressing and dismounting the turning tool, the cutter point is prevented from being damaged by accidental vibration of the cutter, the normal cutting of the cutter is ensured, and the phenomena that scrap iron winds the cutter and scratches a workpiece are avoided;

s5: the method comprises the following steps of (S3) arranging a through hole on a cutter bar, arranging a cross rod in the through hole, arranging a motor on the cross rod, sleeving a fan blade on an output shaft of the motor, electrifying the motor and driving the fan blade to rotate when a lathe tool carries out lathe machining, driving air to flow by the fan blade, blowing away debris in the lathe machining process, preventing the debris from being accumulated to influence machining accuracy, arranging a collecting box at the bottom of an outer clamping tire, arranging a separation net in the collecting box, arranging a vent hole at the bottom of the collecting box, arranging a fan in the vent hole, adsorbing the blown debris by the fan, filtering and collecting the debris by the separation net, and ensuring a working environment;

s6: after turning, the sleeve ring enters a first middle lifting machine along a blanking channel, the middle lifting machine reversely conveys the sleeve ring to a feeding channel of a second machine tool, the sleeve ring is also conveyed to a clamping mechanism by a mechanical handle to turn a large chamfer surface and a rough turning sealing groove, during rough turning, the size outside the groove is measured by taking the size of the excircle of a step as a reference, the width of the groove is measured by taking the size of the inner hole outside the groove as a reference, wherein a margin of 0.05-0.08mm is reserved during angle turning, then the sleeve ring enters a second middle lifting machine from the blanking channel, the sleeve ring is conveyed to a feeding channel of a third machine tool by the middle lifting machine in the same direction, and then the mechanical handle moves to convey the sleeve ring to the clamping mechanism to finely turn the sealing groove.

Preferably, in S3, the turning tool is a cemented carbide insert.

Preferably, in S3, the front angle of the turning tool is 10.5 ° to 11.5 °.

Preferably, in S3, the turning tool has a relief angle of 11.5 ° to 12.5 °.

Preferably, in S2, an anti-slip protection washer is mounted on the inner wall of the positioning cylinder, and the anti-slip protection washer contacts with the ferrule.

Preferably, in S5, the motor is fixedly connected to the cross bar by bolts.

Compared with the prior art, the invention has the beneficial effects that:

the sealed groove turning machine is not easy to deform due to radial cutting force in the turning process, has good processing stability, can timely clean attached fragments in the turning process, is more optimized in the processing process, can avoid processing errors to a greater extent, and reduces the processing difficulty and the error rate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.

Implement one

A sealed groove turning process of a self-aligning roller bearing comprises the following steps:

s1: feeding the material into a feeding channel in a first machine tool by using a lifter, wherein the feeding channel is fed into a clamping mechanism by a mechanical handle ferrule, a positioning cylinder is pre-installed in the clamping mechanism, the ferrule is installed in the positioning cylinder, and the positioning cylinder, the ferrule and an outer clamping tire are positioned on the same horizontal plane;

s2: a cooling cavity is formed in the positioning cylinder, cooling liquid is injected into the cooling cavity, the opening of the positioning cylinder is sealed after the injection is finished, and the cooling liquid can reduce the overall temperature of the positioning cylinder and the surface temperature of the ferrule;

s3: the small chamfer surface of the ferrule is turned by using the cutter bar and the turning tool, heat generated on the ferrule is quickly absorbed by the positioning barrel in the turning process, and the temperature of the ferrule can be maintained, so that the deformation of the sealing groove caused by the heating of the ferrule can be well prevented, the ferrule is wrapped by the positioning barrel, and the positioning barrel can effectively prevent the deformation of the ferrule after the ferrule and the outer clamping tire are positioned on the same plane;

s4: the cutter bar of S3 is clamped in the cutter holder, and the compression screw is directly screwed, the cutter holder in the cutter holder does not need to extend out of the cutter holder, a notch is formed in the side surface of the cutter holder for compressing and dismounting the turning tool, the cutter point is prevented from being damaged by accidental vibration of the cutter, the normal cutting of the cutter is ensured, and the phenomena that scrap iron winds the cutter and scratches a workpiece are avoided;

s5: the method comprises the following steps of (S3) arranging a through hole on a cutter bar, arranging a cross rod in the through hole, arranging a motor on the cross rod, sleeving a fan blade on an output shaft of the motor, electrifying the motor and driving the fan blade to rotate when a lathe tool carries out lathe machining, driving air to flow by the fan blade, blowing away debris in the lathe machining process, preventing the debris from being accumulated to influence machining accuracy, arranging a collecting box at the bottom of an outer clamping tire, arranging a separation net in the collecting box, arranging a vent hole at the bottom of the collecting box, arranging a fan in the vent hole, adsorbing the blown debris by the fan, filtering and collecting the debris by the separation net, and ensuring a working environment;

s6: after turning, the sleeve ring enters a first middle lifting machine along a blanking channel, the middle lifting machine reversely conveys the sleeve ring to a feeding channel of a second machine tool, the sleeve ring is also conveyed to a clamping mechanism by a mechanical handle to turn a large chamfer surface and a rough turning sealing groove, during rough turning, the size outside the groove is measured by taking the size of the excircle of a step as a reference, the width of the groove is measured by taking the size of the inner hole outside the groove as a reference, wherein a margin of 0.05-0.08mm is reserved during angle turning, then the sleeve ring enters a second middle lifting machine from the blanking channel, the sleeve ring is conveyed to a feeding channel of a third machine tool by the middle lifting machine in the same direction, and then the mechanical handle moves to convey the sleeve ring to the clamping mechanism to finely turn the sealing groove.

In this embodiment, in S3, the turning tool is a cemented carbide insert.

In this embodiment, in S3, the rake angle of the turning tool is 10.5 ° to 11.5 °.

In this embodiment, in S3, the turning tool has a relief angle of 11.5 ° to 12.5 °.

In this embodiment, in S2, an anti-slip protection washer is mounted on the inner wall of the positioning cylinder, and the anti-slip protection washer is in contact with the ferrule.

In this embodiment, in S5, the motor is fixedly connected to the cross bar by bolts.

Example two

A sealed groove turning process of a self-aligning roller bearing comprises the following steps:

s1: feeding the material into a feeding channel in a first machine tool by using a lifter, wherein the feeding channel is fed into a clamping mechanism by a mechanical handle ferrule, a positioning cylinder is pre-installed in the clamping mechanism, the ferrule is installed in the positioning cylinder, and the positioning cylinder, the ferrule and an outer clamping tire are positioned on the same horizontal plane;

s2: a cooling cavity is formed in the positioning cylinder, cooling liquid is injected into the cooling cavity, the opening of the positioning cylinder is sealed after the injection is finished, and the cooling liquid can reduce the overall temperature of the positioning cylinder and the surface temperature of the ferrule;

s3: the small chamfer surface of the ferrule is turned by using the cutter bar and the turning tool, heat generated on the ferrule is quickly absorbed by the positioning barrel in the turning process, and the temperature of the ferrule can be maintained, so that the deformation of the sealing groove caused by the heating of the ferrule can be well prevented, the ferrule is wrapped by the positioning barrel, and the positioning barrel can effectively prevent the deformation of the ferrule after the ferrule and the outer clamping tire are positioned on the same plane;

s4: the cutter bar of S3 is clamped in the cutter holder, and the compression screw is directly screwed, the cutter holder in the cutter holder does not need to extend out of the cutter holder, a notch is formed in the side surface of the cutter holder for compressing and dismounting the turning tool, the cutter point is prevented from being damaged by accidental vibration of the cutter, the normal cutting of the cutter is ensured, and the phenomena that scrap iron winds the cutter and scratches a workpiece are avoided;

s5: the method comprises the following steps of (S3) arranging a through hole on a cutter bar, arranging a cross rod in the through hole, arranging a motor on the cross rod, sleeving a fan blade on an output shaft of the motor, electrifying the motor and driving the fan blade to rotate when a lathe tool carries out lathe machining, driving air to flow by the fan blade, blowing away debris in the lathe machining process, preventing the debris from being accumulated to influence machining accuracy, arranging a collecting box at the bottom of an outer clamping tire, arranging a separation net in the collecting box, arranging a vent hole at the bottom of the collecting box, arranging a fan in the vent hole, adsorbing the blown debris by the fan, filtering and collecting the debris by the separation net, and ensuring a working environment;

s6: after turning, the sleeve ring enters a first middle lifting machine along a blanking channel, the middle lifting machine reversely conveys the sleeve ring to a feeding channel of a second machine tool, the sleeve ring is also conveyed to a clamping mechanism by a mechanical handle to turn a large chamfer surface and a rough turning sealing groove, during rough turning, the size outside the groove is measured by taking the size of the excircle of a step as a reference, the groove width is measured by taking the size of the inner hole outside the groove as a reference, wherein, the allowance of 0.07mm is reserved during angle turning, then the sleeve ring enters a second middle lifting machine from the blanking channel, the sleeve ring is conveyed to a feeding channel of a third machine tool by the middle lifting machine in the same direction, and then the mechanical handle sends the sleeve ring to the clamping mechanism to finely turn the sealing groove.

In this embodiment, in S3, the turning tool is a cemented carbide insert.

In this embodiment, in S3, the rake angle of the turning tool is 11 °.

In this embodiment, in S3, the cutting tool has a relief angle of 12 °.

In this embodiment, in S2, an anti-slip protection washer is mounted on the inner wall of the positioning cylinder, and the anti-slip protection washer is in contact with the ferrule.

In this embodiment, in S5, the motor is fixedly connected to the cross bar by bolts.

The plurality of sealing grooves manufactured by the embodiment are measured with the original size, and the measurement result is calculated and recorded:

serial number	Amount of deformation before improvement	Status of state	Improved post-deformation	Status of state
					1	7.8	Fail to be qualified	0.02	Qualified
2	6.5	Fail to be qualified	0.02	Qualified
					3	6.8	Fail to be qualified	0.02	Qualified
4	7.3	Fail to be qualified	0.01	Qualified
					5	7.1	Fail to be qualified	0.02	Qualified

The result shows that the whole outer diameter is protected by the pressure of the outer clamping tire and the positioning cylinder by improving the clamping mode, so that the outer sealing groove is only slightly expanded even if being subjected to larger radial cutting force during lathing, and the product quality is ensured.

Compared with the prior art, the invention has the technical progress that: the sealed groove turning machine is not easy to deform due to radial cutting force in the turning process, has good processing stability, can timely clean attached fragments in the turning process, is more optimized in the processing process, can avoid processing errors to a greater extent, and reduces the processing difficulty and the error rate.