CN214923561U - High-pressure water jet lapping processing device for bearing raceway - Google Patents

High-pressure water jet lapping processing device for bearing raceway Download PDF

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Publication number
CN214923561U
CN214923561U CN202022932160.3U CN202022932160U CN214923561U CN 214923561 U CN214923561 U CN 214923561U CN 202022932160 U CN202022932160 U CN 202022932160U CN 214923561 U CN214923561 U CN 214923561U
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box
abrasive
workpiece
pipe
return pipe
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李利莉
谭树范
王明利
孙铁明
张志滨
杨冠男
黄春林
汤志伟
胡静
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Harbin Bearing Group Co ltd
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Harbin Bearing Group Co ltd
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Abstract

The utility model belongs to the technical field of bearing processing, in particular to a bearing raceway high-pressure water jet lapping processing device, in order to solve the problems that in the existing bearing processing, oilstones need to be prepared according to the selection of bearing models, the purchasing and the management are complex, the utilization rate of the oilstones is low, the economic benefit is poor, the oilstones are easy to consume, and the oilstones are not environment-friendly, a workpiece shaft box and a feed box are arranged at the top of a lathe bed, and a gap is reserved between the workpiece shaft box and the feed box to form a working interval; one end of the workpiece shaft box is provided with a workpiece shaft, and the workpiece shaft is arranged in the working area towards the feeding box; the feeding box is connected with the lathe bed in a sliding way through a guide rail, and the moving direction of the feeding box is parallel to the axial direction of the workpiece shaft; the top of the feeding box is connected with the spray head through the feeding pipe, the spray head is arranged in the working area at one side facing the workpiece axle box, and the spraying direction of the spray head is vertical to the axial direction of the workpiece axle, so that compared with the traditional process, the machine tool has the advantages of simple structure, easy manufacture and maintenance, simple operation and lower manufacturing cost; and numerical control machining can be realized.

Description

High-pressure water jet lapping processing device for bearing raceway
Technical Field
The invention belongs to the technical field of bearing processing, and particularly relates to a high-pressure water jet lapping processing device for a bearing raceway.
Background
The existing bearing raceway lapping process comprises the following steps: a professional lapping machine tool is used for clamping a lapping oilstone (abrasive material) and carrying out lapping processing on the surface of a workpiece through pressurization, and the defects of the special lapping machine tool are as follows:
1. the bearing manufacturer needs to prepare oilstones with different shapes, sizes, abrasive materials, abrasive particle sizes and hardness according to the parameters of the bearing such as the type, model, raceway shape and the like, and the purchasing and management processes are complex;
2. because the length of the oilstone is limited and the oilstone is easy to break, the utilization rate is only about 50-70%, and the economy is poor;
3. the stone clamp is easy to wear and consume;
4. special lapping liquid is required to be prepared, and the environment is not environment-friendly enough.
Disclosure of Invention
The purpose of the invention is as follows: in order to solve the problems in the prior art, the invention provides a high-pressure water jet lapping processing device for a bearing raceway.
In order to achieve the purpose, the bearing raceway high-pressure water jet lapping processing device comprises a workpiece axle box, a lathe bed, a workpiece axle, a guide rail, a feeding box and a nozzle;
the workpiece axle box and the feeding box are arranged at the top of the lathe bed, and a gap is reserved between the workpiece axle box and the feeding box to form a working area;
one end of the workpiece shaft box is provided with a workpiece shaft, and the workpiece shaft is arranged in the working area towards the feeding box;
the feeding box is connected with the lathe bed in a sliding mode through a guide rail, and the moving direction of the feeding box is parallel to the axial direction of the workpiece shaft;
the top of the feeding box is connected with a spray head through a feeding pipe, the spray head is arranged in a working area at one side facing a workpiece axle box, and the spraying direction of the spray head is mutually vertical to the axial direction of the workpiece axle.
Further, the feed pipe comprises a water inlet pipe and an abrasive conveying pipe;
the feeding box comprises a high-pressure pressurizing box and a grinding box;
the water inlet pipe is connected with the clear water supply end of the high-pressure pressurizing box,
the abrasive conveying pipe is connected with the abrasive feeding end of the abrasive box.
Still further, the device still includes abrasive recovery mechanism, abrasive recovery mechanism's recovery end sets up in the below of working interval, and abrasive recovery mechanism's feed end is connected with the feed tank.
Furthermore, the abrasive material recovery mechanism comprises a recovery pipe, a liquid collection tank, an abrasive material return pipe, an abrasive material recovery pump, a clear water return pipe and a clear water recovery pump;
the recovery pipe is vertically arranged below the workpiece shaft, penetrates through the bed body from top to bottom and is communicated with a liquid collecting tank arranged at the lower part of the bed body, one end of the grinding material return pipe and one end of the clean water return pipe are both communicated with the liquid collecting tank, the clean water return pipe is arranged above the grinding material return pipe, the other end of the clean water return pipe is connected with a clean water collecting end of the high-pressure pressurizing tank, and the other end of the grinding material return pipe is connected with a grinding material collecting end of the grinding material tank;
the abrasive recovery pump is arranged on the abrasive return pipe, and the clear water recovery pump is arranged on the clear water return pipe.
Still further, the abrasive in the abrasive box is white corundum and silicon carbide.
Has the advantages that:
1. compared with the traditional process, the machine tool has simple structure, easy manufacture and maintenance, simple operation and lower manufacturing cost; and numerical control machining can be realized.
2. The grinding fluid (pure water and abrasive) can be recycled, so that the cost is reduced;
3. only the surface layer treatment is carried out on the processing surface, the processing quality is controllable, and the original precision is not damaged;
4. under the high-speed impact action of the abrasive, the surface of the roller path can be further strengthened, and the product performance is improved;
5. the abrasive material components can be automatically prepared (corundum, carborundum, garnet and the like can be selected according to the situation);
6. the processing process has no spark, no heating, no harmful gas and dust, and environmental protection.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of the present invention;
fig. 2 is a schematic diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In view of the problems of the prior art, the present invention provides a transverse cutting fixing device for a pipe sawing machine, which is described in detail below with reference to the accompanying drawings.
The first embodiment is as follows: bearing raceway high pressure water jet lapping processingequipment, its characterized in that: the device comprises a workpiece axle box 1, a lathe bed 2, a workpiece axle 3, a guide rail 12, a feeding box and a spray head 17;
the workpiece axle box 1 and the feed box are arranged at the top of the lathe bed 2, and a gap is reserved between the workpiece axle box 1 and the feed box to form a working area 5;
one end of the workpiece axle box 1 is provided with a workpiece axle 3, and the workpiece axle 3 is arranged in the working interval 5 towards the feeding box;
the feeding box is connected with the lathe bed 2 in a sliding mode through a guide rail 12, and the moving direction of the feeding box is parallel to the axial direction of the workpiece shaft 3;
the top of the feed box is connected with a spray head 17 through a feed pipe, the spray head 17 is arranged in the working space 5 at one side facing the workpiece axle box 1, and the spraying direction of the spray head 17 is perpendicular to the axial direction of the workpiece axle 3.
The second embodiment is as follows: the feed pipe comprises a water inlet pipe 15 and an abrasive conveying pipe 16;
the feeding box comprises a high-pressure pressurizing box 13 and a grinding material box 14;
the feeding pipe comprises a water inlet pipe 15 connected with the clean water supply end of the high-pressure pressurizing box 13,
an abrasive delivery tube 16 is connected to the abrasive supply end of the abrasive bin 14.
Other embodiments are the same as the first embodiment.
The third concrete implementation mode: the device well comprises an abrasive material recovery mechanism, wherein the recovery end of the abrasive material recovery mechanism is arranged below the working interval 5, and the supply end of the abrasive material recovery mechanism is connected with the feeding box.
Other embodiments are the same as the second embodiment.
The fourth concrete implementation mode: the abrasive material recovery mechanism comprises a recovery pipe 6, a liquid collection tank 7, an abrasive material return pipe 8, an abrasive material recovery pump 9, a clear water return pipe 10 and a clear water recovery pump 11;
the recovery pipe 6 is vertically arranged below the workpiece shaft 3, penetrates through the lathe bed 2 from top to bottom and is communicated with a liquid collecting tank 7 arranged at the lower part of the lathe bed 2, one end of the grinding material return pipe 8 and one end of the clean water return pipe 10 are both communicated with the liquid collecting tank 7, the clean water return pipe 10 is arranged above the grinding material return pipe 8, the other end of the clean water return pipe 10 is connected with a clean water collecting end of a high-pressure pressurizing tank 13, and the other end of the grinding material return pipe 8 is connected with a grinding material collecting end of a grinding material tank 14;
the abrasive recovery pump 9 is arranged on the abrasive return pipe 8, and the clear water recovery pump 11 is arranged on the clear water return pipe 10.
Other embodiments are the same as the first embodiment.
The fourth concrete implementation mode: the abrasive in the abrasive box 14 is white corundum and silicon carbide.
Other embodiments are the same as the second embodiment.
The operation mode is as follows: the method specifically comprises the following steps:
the method comprises the following steps: injecting abrasive into the abrasive bin 14; injecting clean water into the high-pressure pressurizing box 13;
step two: fixing a workpiece 4 on a workpiece shaft 3 in a working interval 5, and clamping the workpiece 4 by using a clamp;
step three: starting a power supply of the workpiece axle box 1 to enable the workpiece 4 to stably rotate on the workpiece axle 3;
step four: starting a driving device of the feeding box; the work bin moves linearly in a reciprocating way, water in the high-pressure pressurizing box 13 enters the water inlet pipe 15, the grinding materials in the mixed grinding work bin 14 enter the grinding material conveying pipe 16, and the water and the grinding materials are sprayed on the surface of the work piece 4 through the spray head 17 to process the work piece 4;
step five: starting the grinding material recovery pump 9 and the clear water recovery pump 11; the abrasive recovery pump 9 recovers the abrasive to the abrasive tank 14; the clean water recovery pump 11 recovers water to the high-pressure pressurizing tank 13.
The abrasive in the first step comprises white corundum and silicon carbide.
In the first step, the white corundum and the silicon carbide are mixed according to the ratio of 1: 1.
The pressure of the water supplied by the high-pressure booster tank 13 in the fourth step is 80MPa to 150 MPa.
The frequency of the reciprocating linear motion of the feeding box in the third step is 300 times/minute to 600 times/minute.
And the rotation of the workpiece shaft 3 of the workpiece shaft box 1 in the third step and the reciprocating motion of the feeding box in the fourth step are both driven by a speed-regulating driving mode.
The working principle is as follows:
after the workpiece is positioned, the workpiece shaft of the workpiece box 1 (adjustable speed) drives the workpiece to rotate, and the high-pressure pressurizing box 13 (adjustable pressure) outputs high-pressure pure water (without abrasive and added with antirust) to the spray head 17.
The high-pressure high-speed water flow generates negative pressure in the spray head, sucks abrasive materials and sprays the abrasive materials on the processing surface to carry out fine grinding processing.
The high-pressure pressurizing box 13 and the grinding material box 14 are arranged on the guide rail 12 and do reciprocating oscillation motion under the drive of a motor, and the amplitude (adjustable) covers the width of a bearing raceway.
At the moment, the workpiece can complete the process of machining the surface of the bearing raceway under the action of self-rotation and reciprocating oscillation motion.
The grinding water which finishes the work enters a liquid collecting tank 7 through a recovery pipe 6, and a magnetic separation device is arranged in the liquid collecting tank to separate the cuttings of the workpiece. The grinding water is precipitated to separate pure water and grinding materials (mixture of high-concentration grinding materials and water), and the pure water and the grinding materials are respectively conveyed to a high-pressure pressurizing box and a grinding material box through a pump body and recycled.
The grinding material (containing 50% of white corundum and 50% of green silicon carbide) and water are simultaneously injected into a feeding box, high-pressure abrasive water jet (with the pressure of about 80-150 MPa) is injected into the surface of the roller path by using high-pressure water jet, the high-pressure abrasive water jet makes reciprocating linear motion (300-600 times/minute), a workpiece rotates, the traditional oilstone is replaced, and the surface of the bearing roller path is subjected to lapping processing. The surface quality of the bearing raceway is obtained by utilizing liquid mixed with fine abrasives and sprayed from a nozzle pin hole at a high speed to impact the surface to be processed, removing materials (wave crests and wave troughs after grinding) through high-speed collision and shearing action generated by abrasive particles, and adjusting technological parameters such as spraying pressure, time, abrasive components, granularity and the like.

Claims (4)

1. Bearing raceway high pressure water jet lapping processingequipment, its characterized in that: the device comprises a workpiece axle box (1), a lathe bed (2), a workpiece axle (3), a guide rail (12), a feeding box and a spray head (17);
the workpiece axle box (1) and the feeding box are arranged at the top of the lathe bed (2), and a gap is reserved between the workpiece axle box (1) and the feeding box to form a working area (5);
one end of the workpiece axle box (1) is provided with a workpiece axle (3), and the workpiece axle (3) is arranged in the working area (5) towards the feeding box;
the feeding box is connected with the lathe bed (2) in a sliding mode through a guide rail (12), and the moving direction of the feeding box is parallel to the axial direction of the workpiece shaft (3);
the top of the feeding box is connected with a spray head (17) through a feeding pipe, the spray head (17) is arranged in a working area (5) on one side facing a workpiece axle box (1), and the spraying direction of the spray head (17) is perpendicular to the axial direction of a workpiece axle (3).
2. A bearing raceway high pressure water jet lapping machining apparatus according to claim 1, characterized by: the feed pipe comprises a water inlet pipe (15) and an abrasive conveying pipe (16);
the feed tank comprises a high-pressure pressurizing tank (13) and an abrasive tank (14);
the water inlet pipe (15) is connected with the clear water supply end of the high-pressure pressurizing box (13),
the abrasive conveying pipe (16) is connected with the abrasive supplying end of the abrasive box (14).
3. A bearing raceway high pressure water jet lapping machining apparatus according to claim 2, characterized in that: the device also comprises an abrasive material recovery mechanism, wherein the recovery end of the abrasive material recovery mechanism is arranged below the working interval (5), and the supply end of the abrasive material recovery mechanism is connected with the supply box.
4. A bearing raceway high pressure water jet lapping machining apparatus according to claim 3, characterized in that: the abrasive material recovery mechanism comprises a recovery pipe (6), a liquid collection tank (7), an abrasive material return pipe (8), an abrasive material recovery pump (9), a clear water return pipe (10) and a clear water recovery pump (11);
the recovery pipe (6) is vertically arranged below the workpiece shaft (3), penetrates through the lathe bed (2) from top to bottom and is communicated with a liquid collecting tank (7) arranged at the lower part of the lathe bed (2), one end of the abrasive material return pipe (8) and one end of the clean water return pipe (10) are both communicated with the liquid collecting tank (7), the clean water return pipe (10) is arranged above the abrasive material return pipe (8), the other end of the clean water return pipe (10) is connected with the clean water collecting end of the high-pressure pressurizing tank (13), and the other end of the abrasive material return pipe (8) is connected with the abrasive material collecting end of the abrasive material tank (14);
the abrasive recovery pump (9) is arranged on the abrasive return pipe (8), and the clear water recovery pump (11) is arranged on the clear water return pipe (10).
CN202022932160.3U 2020-12-09 2020-12-09 High-pressure water jet lapping processing device for bearing raceway Active CN214923561U (en)

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Application Number Priority Date Filing Date Title
CN202022932160.3U CN214923561U (en) 2020-12-09 2020-12-09 High-pressure water jet lapping processing device for bearing raceway

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Application Number Priority Date Filing Date Title
CN202022932160.3U CN214923561U (en) 2020-12-09 2020-12-09 High-pressure water jet lapping processing device for bearing raceway

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112440214A (en) * 2020-12-09 2021-03-05 哈尔滨轴承集团公司 High-pressure water jet lapping device and method for bearing raceway

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112440214A (en) * 2020-12-09 2021-03-05 哈尔滨轴承集团公司 High-pressure water jet lapping device and method for bearing raceway

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