CN210307158U - High-precision deep groove ball bearing inner ring groove and inner and outer diameter composite grinding device - Google Patents

High-precision deep groove ball bearing inner ring groove and inner and outer diameter composite grinding device Download PDF

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CN210307158U
CN210307158U CN201921268603.4U CN201921268603U CN210307158U CN 210307158 U CN210307158 U CN 210307158U CN 201921268603 U CN201921268603 U CN 201921268603U CN 210307158 U CN210307158 U CN 210307158U
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grinding wheel
motion control
grinding
workpiece
transverse
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CN201921268603.4U
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朱天胜
刘刚
郭昆峰
孙捷
徐古洛
童楚春
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Shanghai Tieke Bearing Co ltd
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Shanghai Tieke Bearing Co ltd
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Abstract

The utility model relates to a high accuracy deep groove ball bearing inner circle channel and the compound grinding device of inside and outside footpath. The utility model comprises a grinding wheel operating mechanism, a grinding wheel dressing mechanism and a workpiece moving mechanism; the grinding wheel running mechanism controls a grinding wheel to rotate through a grinding wheel controller, the grinding wheel dressing mechanism controls the dresser support to move through the first transverse motion control mechanism and the first longitudinal motion control mechanism, and the first rotating mechanism drives the dressing pen to dress the grinding wheel; the workpiece moving mechanism drives the workpiece clamp to feed the grinding wheel through the second transverse movement control structure, the second longitudinal movement control structure and the second rotating mechanism.

Description

High-precision deep groove ball bearing inner ring groove and inner and outer diameter composite grinding device
Technical Field
The utility model relates to a high accuracy deep groove ball bearing's grinding device especially discloses a high accuracy deep groove ball bearing inner circle channel and the compound grinding device of inside and outside footpath.
Background
The high-precision deep groove ball bearing is widely applied to various high-speed operation and high-precision equipment use occasions, the precision requirement on the bearing is strict, the processing quality of bearing parts directly influences the service life of the finished bearing, and the mechanical processing of the bearing parts in the bearing industry is different from the traditional mechanical processing industry and has certain particularity and unicity. The geometric accuracy of the inner diameter and the outer diameter of a common deep groove ball bearing does not have special requirements, and the common deep groove ball bearing is usually processed in a dispersing and single mode. For a precise deep groove ball bearing with high precision and high speed operation, the inner diameter and the outer diameter of the bearing inner ring simultaneously play a role in guiding rotation, and the inner diameter and the outer diameter simultaneously serve as references for machining an inner groove and machining the inner diameter, so the geometric precision of the inner diameter and the outer diameter of the inner ring directly influences the machining quality of subsequent procedures.
In the prior art, when the inner diameter and the outer diameter of a high-precision deep groove ball bearing are machined, a grinding wheel needs to be replaced on an outer diameter machine tool, and the grinding wheel is trimmed into a straight surface for grinding machining by a dresser; when the inner groove is machined, the grinding wheel needs to be replaced on an inner groove machine tool, and the grinding wheel is trimmed into an arc R for grinding. Therefore, the inner diameter and the outer diameter of the bearing inner ring and the channel of the bearing inner ring are processed on two machine tools in a dispersing way, the machine tools need to be changed twice, the machine tools need to be adjusted twice, the grinding wheel needs to be changed twice, the grinding wheel is complex to change twice, and the processing efficiency and the processing quality are directly influenced by the repeated positioning of the workpiece. The main reason for the dispersed processing of the inner diameter and the outer diameter of the inner ring and the inner groove is limited by early equipment, the early equipment does not have the simultaneous composite grinding of the inner diameter and the outer diameter and the inner groove, a grinding wheel dressing system is single, and two procedures can be processed separately, so that the processing technology is limited.
Disclosure of Invention
An object of the utility model is to overcome the problem that exists among the prior art, provide one kind can realize through an equipment grinding bearing internal and external diameter and interior ditch simultaneously, improve grinding precision, improve work efficiency, practice thrift the high accuracy deep groove ball bearing inner race channel and the compound grinding device of interior external diameter of energy consumption.
The utility model discloses a realize like this: a high-precision deep groove ball bearing inner ring channel and inner and outer diameter composite grinding device comprises a grinding wheel operating mechanism, a grinding wheel dressing mechanism and a workpiece moving mechanism;
the grinding wheel running mechanism comprises: comprises a grinding wheel and a grinding wheel controller for controlling the rotation of the grinding wheel;
the grinding wheel dressing mechanism comprises: the trimmer comprises a trimmer bracket, a first transverse motion control mechanism, a first longitudinal motion control mechanism and a first rotating mechanism, wherein the first transverse motion control mechanism, the first longitudinal motion control mechanism and the first rotating mechanism are respectively connected with the trimmer bracket; a dressing pen for dressing the grinding wheel is arranged on the first rotating mechanism;
the workpiece moving mechanism is: the device comprises a workpiece support, a second transverse motion control structure, a second longitudinal motion control structure and a second rotating mechanism, wherein the second transverse motion control structure, the second longitudinal motion control structure and the second rotating mechanism are respectively connected with the workpiece support;
the grinding wheel controller controls the grinding wheel to rotate, the dresser support is controlled to move through the first transverse motion control mechanism and the first longitudinal motion control mechanism, and the first rotating mechanism drives the dressing pen to dress the grinding wheel; the workpiece motion mechanism drives the workpiece fixture to move transversely through the second transverse motion control structure, and drives the workpiece fixture to feed the grinding wheel through the second longitudinal motion control structure and the second rotating mechanism.
The grinding wheel controller comprises a grinding wheel frame, an asynchronous motor and a flange plate, the grinding wheel is fixed on the grinding wheel frame through the flange plate, and the grinding wheel frame is connected with the asynchronous motor; the grinding carriage is a dynamic and static pressure system grinding carriage.
The first transverse motion control mechanism comprises a first transverse supporting plate and a first servo motor connected with the first transverse supporting plate; the first longitudinal motion control mechanism comprises a first longitudinal supporting plate and a second servo motor connected with the first longitudinal supporting plate; the first rotating mechanism comprises a first rotating shaft and a third servo motor connected with the first rotating shaft.
The second transverse motion control structure comprises a second transverse supporting plate and a fourth servo motor connected with the second transverse supporting plate; the second longitudinal motion control structure comprises a second longitudinal supporting plate and a fifth servo motor connected with the second longitudinal supporting plate; the second rotating mechanism comprises a workpiece rotating shaft and a sixth servo motor connected with the workpiece rotating shaft, and the workpiece clamp is fixed on the workpiece rotating shaft.
The workpiece clamp is an electromagnetic centerless clamp.
The shape of the grinding surface after being dressed by the grinding wheel is formed by sequentially connecting a first straight surface, an arc surface and a second straight surface.
The utility model discloses high accuracy deep groove ball bearing inner race channel and the compound grinding process of the compound grinding device of inside and outside footpath, include following step:
(1) fixing the bearing inner ring on a workpiece clamp; starting a second rotating mechanism, wherein the second rotating mechanism drives the workpiece clamp to rotate and drives the bearing inner ring to rotate;
(2) starting the grinding wheel operating mechanism and the grinding wheel dressing mechanism, and controlling the grinding wheel to rotate by the grinding wheel controller; the first transverse motion control mechanism, the first longitudinal motion control mechanism and the first rotating mechanism move in place and enter an initial grinding position;
(3) and (3) grinding wheel shape finishing:
a. dressing the first straight surface of the grinding wheel: the first rotating mechanism drives the dressing pen to rotate by-70 degrees to-50 degrees in the Z-axis direction, and meanwhile, the first transverse motion control mechanism controls the dresser support to move in the X-axis direction, and the first longitudinal motion control mechanism controls the dresser support to move in the Y-axis direction, so that the first straight surface dressing of the grinding wheel is completed;
b. arc surface dressing of the grinding wheel: after finishing the first straight surface, the first rotating mechanism drives the finishing pen to rotate for +50 degrees to +70 degrees in the Z-axis direction, and the circular arc surface of the grinding wheel is finished; in the process, the first transverse motion control mechanism and the first longitudinal motion control mechanism are kept in a static state;
c. second straight surface dressing of the grinding wheel: the trimming pen is located at a position of +50 degrees to +70 degrees in the Z-axis direction, and at the moment, the first transverse motion control mechanism moves along the X axis to finish the trimming of the second straight surface of the grinding wheel;
(4) after the step (3) is finished, the grinding wheel dressing mechanism returns to the original position, and the inner ring of the bearing enters a grinding position under the driving of the workpiece moving mechanism;
adjusting the transverse grinding position through the second transverse motion control structure, and adjusting the transverse grinding position before grinding to ensure that the position of a transverse channel of the bearing inner ring is matched with the central position of the grinding wheel and fasten a transverse carriage;
and when the grinding is started, the workpiece motion mechanism drives the bearing inner ring clamped by the workpiece clamp through the second longitudinal motion control structure and the second rotating mechanism to perform feed motion to the grinding wheel to finish the grinding, and the workpiece motion mechanism resets after the grinding is finished.
In the step (3), the first rotating mechanism drives the dressing pen to rotate at a rotating speed of 0.006 mm/s-0.01 mm/s.
In the step (3), the first transverse motion control mechanism controls the movement speed of the trimmer carriage to be 0.006 mm/s-0.01 mm/s in the X-axis direction; the first longitudinal motion control mechanism controls the moving speed of the trimmer carriage to be 0.5-1 mm/s in the Y-axis direction.
The utility model has the advantages that: the utility model discloses an just can accomplish the interior ditch of deep groove ball bearing inner circle and the compound grinding of inside and outside footpath through an equipment, process twice processes respectively with two current lathes, merge and to be a lathe and can process twice processes simultaneously, avoided twice processes to add the repeated positioning benchmark and the geometric accuracy error of man-hour, guaranteed the quality of product, a tractor serves several purposes has improved work efficiency simultaneously again greatly, has practiced thrift the energy consumption again.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is the structure schematic diagram of the grinding wheel and the bearing inner ring in the grinding process of the utility model.
Wherein: 1. a grinding wheel running mechanism; 101. a grinding wheel; 1011. a first straight surface; 1012. a circular arc surface; 1013. a second straight surface;
102. a grinding carriage; 103. an asynchronous motor; 104. a flange plate;
2. a grinding wheel dressing mechanism; 201. a dresser support; 202. trimming the pen; 203. a first transverse pallet; 204. a first servo motor; 205. a first longitudinal pallet; 206. a second servo motor; 207. a first rotating shaft; 208. a third servo motor;
3. a workpiece movement mechanism; 301. a workpiece holder; 302. a workpiece holder; 303. a second transverse support plate; 304. a fourth servo motor; 305. a second longitudinal support plate; 306. a fifth servo motor; 307. a workpiece rotating shaft; 308. a sixth servo motor;
4. and (4) bearing inner rings.
Detailed Description
According to fig. 1, fig. 2, the utility model discloses high accuracy deep groove ball bearing inner circle channel and the compound grinding device of inside and outside footpath, including emery wheel operation mechanism 1, emery wheel finishing mechanism 2 and work piece motion 3.
The grinding wheel running mechanism 1: comprises a grinding wheel 101 and a grinding wheel controller for controlling the rotation of the grinding wheel 101; the grinding wheel controller comprises a grinding wheel frame 102, an asynchronous motor 103 and a flange 104, the grinding wheel 101 is fixed on the grinding wheel frame 102 through the flange 104, and the grinding wheel frame 102 is connected with the asynchronous motor 103; the grinding carriage 102 is a dynamic and static pressure grinding carriage.
The grinding wheel dressing mechanism 2: the trimmer comprises a trimmer bracket 201, a first transverse motion control mechanism, a first longitudinal motion control mechanism and a first rotating mechanism, wherein the first transverse motion control mechanism, the first longitudinal motion control mechanism and the first rotating mechanism are respectively connected with the trimmer bracket 201; and a dressing pen 202 for dressing the grinding wheel 101 is arranged on the first rotating mechanism. The grooming pen 202 is preferably a diamond grooming pen.
The first lateral motion control mechanism includes a first lateral support plate 203 and a first servo motor 204 connected to the first lateral support plate 203. The first longitudinal motion control mechanism includes a first longitudinal support plate 205 and a second servo motor 206 coupled to the first longitudinal support plate 205. The first rotating mechanism includes a first rotating shaft 207 and a third servo motor 208 connected to the first rotating shaft 207.
The workpiece moving mechanism 3: the device comprises a workpiece support 301, a second transverse motion control structure, a second longitudinal motion control structure and a second rotating mechanism, wherein the second transverse motion control structure, the second longitudinal motion control structure and the second rotating mechanism are respectively connected with the workpiece support 301, and a workpiece clamp 302 is arranged on the second rotating mechanism; the work holder 302 is an electromagnetic centerless holder.
The second lateral motion control structure includes a second lateral support plate 303 and a fourth servo motor 304 connected to the second lateral support plate 303. The second longitudinal motion control structure comprises a second longitudinal support plate 305 and a fifth servo motor 306 connected with the second longitudinal support plate 305; the second rotating mechanism comprises a workpiece rotating shaft 307 and a sixth servo motor 308 connected with the workpiece rotating shaft 307, and the workpiece clamp 302 is fixed on the workpiece rotating shaft 307.
The grinding wheel controller controls the grinding wheel to rotate, the grinding wheel dressing mechanism controls the dresser support to move through the first transverse motion control mechanism and the first longitudinal motion control mechanism, and the first rotating mechanism drives the dressing pen to dress the grinding wheel; the workpiece motion mechanism drives the workpiece fixture to move transversely through the second transverse motion control structure, and drives the workpiece fixture to feed the grinding wheel through the second longitudinal motion control structure and the second rotating mechanism.
The shape of the ground surface finished by the grinding wheel 101 is formed by connecting a first straight surface 1011, a circular arc surface 1012 and a second straight surface 1013 in this order.
The utility model discloses high accuracy deep groove ball bearing inner race channel and the compound grinding process of the compound grinding device of inside and outside footpath, include following step:
(1) fixing the bearing inner ring 4 on a workpiece clamp; starting a second rotating mechanism, wherein the second rotating mechanism drives the workpiece clamp to rotate and drives the bearing inner ring to rotate;
(2) starting the grinding wheel operating mechanism and the grinding wheel dressing mechanism, and controlling the grinding wheel to rotate by the grinding wheel controller; the first transverse motion control mechanism, the first longitudinal motion control mechanism and the first rotating mechanism move in place and enter an initial grinding position;
(3) and (3) grinding wheel shape finishing:
a. dressing the first straight surface of the grinding wheel: the first rotating mechanism drives the dressing pen to rotate by-70 degrees to-50 degrees, preferably by-60 degrees, in the Z-axis direction, and meanwhile, the first transverse motion control mechanism controls the dresser support to move in the X-axis direction, and the first longitudinal motion control mechanism controls the dresser support to move in the Y-axis direction, so that the dressing of the first straight surface of the grinding wheel is completed;
wherein, the first rotary mechanism drives the rotational speed of the trimming pen to be 0.006 mm/s-0.01 mm/s, preferably 0.008 mm/s. The rotating speed determines the dressing thickness of the grinding wheel. The first transverse motion control mechanism controls the moving speed of the trimmer bracket to move in the X-axis direction to be 0.006 mm/s-0.01 mm/s, preferably 0.008 mm/s; the first longitudinal motion control mechanism controls the moving speed of the trimmer support to be 0.5-1 mm/s, preferably 0.5mm/s, in the Y-axis direction.
b. Arc surface dressing of the grinding wheel: after finishing the first straight surface, the first rotating mechanism drives the finishing pen to rotate for +50 to +70 degrees in the Z-axis direction, preferably +60 degrees, and the arc surface of the grinding wheel is finished; at this time, the first lateral-motion control mechanism and the first longitudinal-motion control mechanism remain stationary.
c. Second straight surface dressing of the grinding wheel: the trimming pen is located at a position of +50 degrees to +70 degrees, preferably +60 degrees in the Z-axis direction, and at the moment, the first transverse motion control mechanism moves along the X axis to finish the trimming of the second straight surface of the grinding wheel;
(4) grinding: after the step (3) is finished, the grinding wheel dressing mechanism returns to the original position, and the inner ring of the bearing enters a grinding position under the driving of the workpiece moving mechanism;
adjusting the transverse grinding position through the second transverse motion control structure, and adjusting the transverse grinding position before grinding to ensure that the position of a transverse channel of the bearing inner ring is matched with the central position of the grinding wheel and fasten a transverse carriage;
and when the grinding is started, the workpiece motion mechanism drives the bearing inner ring clamped by the workpiece clamp through the second longitudinal motion control structure and the second rotating mechanism to perform feed motion to the grinding wheel to finish the grinding, and the workpiece motion mechanism resets after the grinding is finished.

Claims (6)

1. The utility model provides a high accuracy deep groove ball bearing inner circle channel and compound grinding device of inside and outside footpath which characterized in that: the grinding wheel dressing mechanism comprises a grinding wheel operating mechanism, a grinding wheel dressing mechanism and a workpiece moving mechanism;
the grinding wheel running mechanism comprises: comprises a grinding wheel and a grinding wheel controller for controlling the rotation of the grinding wheel;
the grinding wheel dressing mechanism comprises: the trimmer comprises a trimmer bracket, a first transverse motion control mechanism, a first longitudinal motion control mechanism and a first rotating mechanism, wherein the first transverse motion control mechanism, the first longitudinal motion control mechanism and the first rotating mechanism are respectively connected with the trimmer bracket; a dressing pen for dressing the grinding wheel is arranged on the first rotating mechanism;
the workpiece moving mechanism is: the device comprises a workpiece support, a second transverse motion control structure, a second longitudinal motion control structure and a second rotating mechanism, wherein the second transverse motion control structure, the second longitudinal motion control structure and the second rotating mechanism are respectively connected with the workpiece support;
the grinding wheel controller controls the grinding wheel to rotate, the dresser support is controlled to move through the first transverse motion control mechanism and the first longitudinal motion control mechanism, and the first rotating mechanism drives the dressing pen to dress the grinding wheel; the workpiece motion mechanism drives the workpiece fixture to move transversely through the second transverse motion control structure, and drives the workpiece fixture to feed the grinding wheel through the second longitudinal motion control structure and the second rotating mechanism.
2. The high-precision deep groove ball bearing inner ring channel and inner and outer diameter composite grinding device of claim 1, is characterized in that: the grinding wheel controller comprises a grinding wheel frame, an asynchronous motor and a flange plate, the grinding wheel is fixed on the grinding wheel frame through the flange plate, and the grinding wheel frame is connected with the asynchronous motor; the grinding carriage is a dynamic and static pressure system grinding carriage.
3. The high-precision deep groove ball bearing inner ring channel and inner and outer diameter composite grinding device of claim 1, is characterized in that: the first transverse motion control mechanism comprises a first transverse supporting plate and a first servo motor connected with the first transverse supporting plate; the first longitudinal motion control mechanism comprises a first longitudinal supporting plate and a second servo motor connected with the first longitudinal supporting plate; the first rotating mechanism comprises a first rotating shaft and a third servo motor connected with the first rotating shaft.
4. The high-precision deep groove ball bearing inner ring channel and inner and outer diameter composite grinding device of claim 1, is characterized in that: the second transverse motion control structure comprises a second transverse supporting plate and a fourth servo motor connected with the second transverse supporting plate; the second longitudinal motion control structure comprises a second longitudinal supporting plate and a fifth servo motor connected with the second longitudinal supporting plate; the second rotating mechanism comprises a workpiece rotating shaft and a sixth servo motor connected with the workpiece rotating shaft, and the workpiece clamp is fixed on the workpiece rotating shaft.
5. The high-precision deep groove ball bearing inner ring channel and inner and outer diameter composite grinding device as claimed in claim 1 or 4, wherein: the workpiece clamp is an electromagnetic centerless clamp.
6. The high-precision deep groove ball bearing inner ring channel and inner and outer diameter composite grinding device of claim 1, is characterized in that: the shape of the grinding surface after being dressed by the grinding wheel is formed by sequentially connecting a first straight surface, an arc surface and a second straight surface.
CN201921268603.4U 2019-08-07 2019-08-07 High-precision deep groove ball bearing inner ring groove and inner and outer diameter composite grinding device Active CN210307158U (en)

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Application Number Priority Date Filing Date Title
CN201921268603.4U CN210307158U (en) 2019-08-07 2019-08-07 High-precision deep groove ball bearing inner ring groove and inner and outer diameter composite grinding device

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Application Number Priority Date Filing Date Title
CN201921268603.4U CN210307158U (en) 2019-08-07 2019-08-07 High-precision deep groove ball bearing inner ring groove and inner and outer diameter composite grinding device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110340774A (en) * 2019-08-07 2019-10-18 上海特安一凯轴承有限公司 High-precision deep groove ball bearing bear inner ring grooved railway and internal-and external diameter composite grinding device and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110340774A (en) * 2019-08-07 2019-10-18 上海特安一凯轴承有限公司 High-precision deep groove ball bearing bear inner ring grooved railway and internal-and external diameter composite grinding device and method

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