CN213470543U

CN213470543U - Joint bearing grinds machine

Info

Publication number: CN213470543U
Application number: CN202022287546.3U
Authority: CN
Inventors: 周宇锋; 田雨鑫; 都愿国; 周平
Original assignee: Sichuan Aerospace Fenghuo Servo Control Technology Co ltd
Current assignee: Sichuan Aerospace Fenghuo Servo Control Technology Co ltd
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-06-18
Anticipated expiration: 2030-10-14

Abstract

The utility model discloses a joint bearing grinds machine, including frame and rack, the frame is equipped with and is used for the drive rack pivoted gear motor, the rack is equipped with the grinding agent conveyor who is used for carrying the grinding agent to joint bearing and is used for carrying out the grinder that grinds joint bearing under the pivoted effect. The spherical pair of the joint bearing is uniformly contacted and ground with the matching surface, so that the grinding quality of the spherical pair is greatly improved, and the joint bearing grinding machine has remarkable practicability and economical efficiency for reducing the labor intensity and improving the processing efficiency.

Description

Joint bearing grinds machine

Technical Field

The utility model relates to a grind processing technology field, in particular to joint bearing grinds machine.

Background

The joint bearing is a spherical sliding bearing, the sliding contact surface of which is an inner spherical surface and an outer spherical surface, and can rotate and swing at any angle during movement.

The existing spherical pair can be extruded and deformed after the spherical bearing is pressed, the precision of the spherical pair directly influences the motion quality of the spherical bearing, the motion precision of the whole equipment is further influenced, and the machining quality of the spherical pair is very important. The precision of the spherical pair of the current domestic spherical joint bearing after press mounting cannot meet the precision requirement, so that the matching surface of the spherical pair is not fully contacted, and the problem that an oil film is not easy to form and the like is caused; even if the grinding machine is used after grinding, the grinding is also carried out manually, so that the grinding of the matching surface is not uniform, and the grinding machine is time-consuming, labor-consuming and low in working efficiency.

Therefore, how to provide a spherical pair grinding knuckle bearing grinder specially used for knuckle bearings is a technical problem that needs to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a joint bearing grinds machine to the machine grinds and replaces artifical grinding, makes joint bearing's the vice and the even contact grinding of fitting surface, makes the vice grinding quality that grinds of sphere improve greatly, has apparent practicality and economic nature to reducing artifical intensity of labour and improvement machining efficiency.

In order to achieve the above object, the utility model provides a joint bearing grinds machine, including frame and rack, the frame is equipped with and is used for the drive rack pivoted gear motor, the rack is equipped with the grinder that is used for carrying the abrasive conveying device of abrasive and is used for grinding joint bearing under the pivoted effect to joint bearing.

Preferably, the grinding device comprises a servo motor, a grinding head, a sliding block and a piston, the servo motor is arranged on the rack, the servo motor is connected with and drives the sliding block to move, and the sliding block is connected with and drives the grinding head to adjust the grinding position through the piston.

Preferably, the grinding head control device comprises a controller, wherein the servo motor is provided with a torque sensor, the grinding head is provided with a load cell, and the controller is connected with the torque sensor and the load cell to realize closed-loop control.

Preferably, the abrasive conveying device comprises a storage chamber and a conduit, the storage chamber is used for storing the abrasives, the storage chamber is arranged on the rack, the conduit is communicated with the storage chamber and penetrates through the rack, and a pipe outlet of the conduit is used for being arranged towards the joint bearing.

Preferably, the storage chamber is provided with a pressurizing device for ensuring the abrasive to be stably conveyed to the joint bearing through the guide pipe, and the pipe inlet of the guide pipe is provided with an electrically controlled throttle valve for controlling the flow of the abrasive.

Preferably, the grinding bit is removably connected to the piston.

Preferably, the rack includes first rack and the second rack that from top to bottom sets up by layers, the storage chamber is located first rack, servo motor locates the second rack.

Preferably, a clamp is included to clamp the spherical plain bearing.

Preferably, the surface of the clamp is coated with a flexible material.

Preferably, the clamp is a special matched quick-release tool adapted to various joint bearings.

Compared with the prior art, the joint bearing grinding machine provided by the utility model comprises a frame and a rack, wherein the frame is provided with a speed reducing motor, the rack is provided with a grinding agent conveying device and a grinding device, the rack is driven by the speed reducing motor and the grinding agent conveying device and the grinding device arranged on the rack rotate, the grinding agent is conveyed to the joint bearing in the grinding process by the grinding agent conveying device, and the joint bearing is ground by the grinding device in the grinding process; the spherical pair of the spherical bearing is uniformly contacted and ground with the matching surface, so that the grinding quality of the spherical pair is greatly improved, and the spherical pair grinding machine has remarkable practicability and economical efficiency for reducing the labor intensity and improving the processing efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural view of a spherical plain bearing grinding machine according to an embodiment of the present invention.

Wherein:

1-speed reduction motor, 2-storage cavity, 3-guide rail groove, 4-servo motor, 5-guide tube, 6-clamp, 7-grinding head, 8-slide block, 9-piston, 10-frame and 11-rack.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a joint bearing grinding machine according to an embodiment of the present invention.

In a first specific embodiment, the present invention provides a joint bearing grinding machine comprising a frame 10 and a gantry 11, wherein the frame 10 is fixed with reference to the ground, and the gantry 11 is rotatable with reference to the frame 10, that is, the frame 10 corresponds to a fixed platform, and the gantry 11 corresponds to a rotating platform.

A speed reducing motor 1 is arranged on a machine frame 10, the speed reducing motor 1 is fixedly arranged on the machine frame 10, and an output shaft of the speed reducing motor 1 penetrates through the machine frame 10 and is connected with a rack 11, so that the speed reducing motor 1 can drive the rack 11 to rotate relative to the machine frame 10.

A grinding agent conveying device and a grinding device are arranged on the bench 11, the grinding agent conveying device can adopt pipe fittings such as a conduit 5 and a nozzle, and the grinding agent conveying device is used for conveying grinding agent to the knuckle bearing during the grinding process of the knuckle bearing; the grinding device may employ a tool such as a grinding head 7 or the like, and the grinding device functions to grind the joint bearing during the grinding of the joint bearing.

In the polishing process of this embodiment, first, the polishing head 7 of the polishing apparatus is inserted into the joint bearing, the polishing head 7 contacts with the joint bearing, then the reduction motor 1 controls the gantry 11 to rotate, the gantry 11 drives the polishing head 7 to rotate, and the polishing head 7 performs circumferential polishing on the joint bearing under the rotating action. Thereafter, the relative positions of the polishing head 7 and the joint bearing are adjusted, and the above steps are repeated to polish the joint bearing in all directions.

The utility model discloses the technical problem that will solve is: the problem that an oil film is not easy to form and the like due to insufficient contact of matching surfaces of the spherical pair can be solved. The spherical pair of the spherical bearing is uniformly contacted and ground with the matching surface, so that the grinding quality of the spherical pair is greatly improved, and the spherical pair grinding machine has remarkable practicability and economical efficiency for reducing the labor intensity and improving the processing efficiency.

In a specific embodiment, the adjustment of the relative position of the grinding head 7 and the spherical plain bearing is realized by adjusting the position of the grinding head 7.

In this embodiment, the grinding device includes servo motor 4, grinding head 7, slider 8 and piston 9, servo motor 4 is installed fixedly on rack 11, rack 11 is provided with guide rail groove 3, servo motor 4's output shaft slider 8, slider 8 reconnection piston 9, piston 9 passes guide rail groove 3 and connects grinding head 7 at the lower extreme, servo motor 4 specifically is high-precision servo motor, high-precision servo motor drives slider 8 and piston 9 in order to drive grinding head 7 motion, and then adjusts the grinding position of grinding head 7 in the joint bearing, and then carries out omnidirectional grinding under the rotary action of gear motor 1.

The sliding block 8 and the piston 9 comprise piston rods, piston cylinders, ball hinges and connecting rods, the grinding force can be adjusted by the high-precision servo motor at 0-20 KN, the control precision is high, the sliding block 8 and the piston 9 are driven to move by the high-precision servo motor, and the swinging angle of a bearing ball body relative to an outer ring is guaranteed to be more than or equal to +/-30 degrees.

Besides, the grinding machine comprises a controller, the controller adopts a PLC upper computer and a PLC lower computer, the servo motor 4 is provided with a torque sensor, the grinding head 7 is provided with a force sensor, the controller is connected with the torque sensor and the force sensor, and the control mode of the controller is closed-loop control.

In this embodiment, the joint bearing grinding machine has a function of pressure acquisition, the pressure acquisition is realized by full closed-loop control of a torque sensor of a high-precision servo motor and a force sensor on the grinding head 7, the AD sampling speed of the system, that is, a controller, to the pressure sensor is 200 times/second, the capture pressure of the force sensor is captured by taking 1Kgf as a unit, the current grinding force and the grinding precision are displayed in real time, and a grinding force curve is uploaded and recorded.

In a specific embodiment, the abrasive-transporting device comprises a storage chamber 2 for storing the abrasive and a conduit 5, the storage chamber 2 may be constructed in the form of a cartridge or the like, the storage chamber 2 is mounted and fixed on a stage 11, a pipe inlet at an upper end of the conduit 5 communicates with the storage chamber 2, a main portion of the conduit 5 passes through the stage 11, and a pipe outlet at a lower end of the conduit 5 faces and is aligned with the joint bearing.

For better technical effect, the storage chamber 2 is provided with a pressurizing device for ensuring the abrasive to be stably conveyed to the knuckle bearing through the conduit 5, the inlet of the conduit 5 is provided with an electrically controlled throttle valve for controlling the flow rate of the abrasive, and the pressurizing device and the electrically controlled throttle valve can be connected to the controller.

The grinding head 7 is detachably connected with the piston 9, and the corresponding grinding head 7 can be replaced according to different inner diameters of the joint bearings so as to adapt to the joint bearings of different types and specifications.

Particularly, rack 11 includes two-layer support body, and the first rack and the second rack that are from top to bottom layering setting are respectively, and first rack is located to storage chamber 2, and servo motor 4 locates the second rack, and gear motor 1 can only connect and drive the motion of second rack this moment to ensure the motion of grinding head 7, first rack can connect and be fixed with frame 10, make pipe 5 motionless.

Besides, the fixture 6 is included for clamping the joint bearing.

For better technical effect, the surface of the clamp 6 is coated with a flexible material.

Particularly, the clamp 6 is a matched quick-release special tool adapted to various joint bearings.

The supporting special frock of quick detach is adopted in joint bearing's work piece clamping in this embodiment, convenient operation, and labour saving and time saving adapts to multiple joint bearing product and grinds the needs, and considers the design as the pallet as far as possible. The surface of the clamp 6 is coated with flexible materials to ensure that the surface of the part is not damaged by clamping, and the clamping time of the workpiece is less than or equal to 30 s.

When a user operates, the knuckle bearing is clamped on a special clamp as a workpiece, so that the special clamp is suitable for the grinding requirements of various knuckle bearing products and has strong universality; the carriage 10 and the stage 11 are moved so that the grinding head 7 is inserted into the inner hole of the joint bearing, and grinding is started. The system also means that the controller is connected to the high-precision servo motor through the feedback signal of the force sensor to form closed-loop control, the grinding angle, the position, the grinding time and the flow of the grinding agent are dynamically adjusted, the grinding uniformity of the bearing ball body is guaranteed, and the working efficiency is greatly improved. When the system monitors that the grinding is finished, a prompt is sent, and an operator takes down the workpiece to finish the grinding.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The knuckle bearing grinding machine provided by the utility model is described in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The oscillating bearing grinding machine is characterized by comprising a machine frame (10) and a rack (11), wherein the machine frame (10) is provided with a speed reduction motor (1) for driving the rack (11) to rotate, and the rack (11) is provided with a grinding agent conveying device for conveying grinding agents to an oscillating bearing and a grinding device for grinding the oscillating bearing under the action of rotation.

2. The oscillating bearing grinding machine according to claim 1, characterized in that the grinding device comprises a servo motor (4), a grinding head (7), a slide block (8) and a piston (9), the servo motor (4) is arranged on the rack (11), the servo motor (4) is connected with and drives the slide block (8) to move, and the slide block (8) is connected with and drives the grinding head (7) to adjust the grinding position through the piston (9).

3. A joint bearing grinding machine according to claim 2, characterized by comprising a controller, the servo motor (4) being provided with a torque sensor, the grinding head (7) being provided with a load cell, the controller being connected to the torque sensor and the load cell for closed loop control.

4. A spherical plain bearing grinding machine according to claim 3, wherein the abrasive delivery means comprises a storage chamber (2) for storing abrasive and a conduit (5), the storage chamber (2) being provided in the table (11), the conduit (5) communicating with the storage chamber (2) and passing through the table (11), the conduit (5) having a tube outlet for being disposed toward the spherical plain bearing.

5. A joint bearing grinding machine according to claim 4, characterized in that the storage chamber (2) is provided with a pressure boosting device for ensuring a stable transport of the grinding agent to the joint bearing through the conduit (5), and the pipe inlet of the conduit (5) is provided with an electrically controlled throttle valve for controlling the flow of grinding agent.

6. Joint bearing grinding machine according to claim 2, characterized in that the grinding head (7) is detachably connected to the piston (9).

7. A spherical plain bearing grinding machine according to claim 4, characterized in that the stand (11) comprises a first stand and a second stand arranged in layers from top to bottom, the storage chamber (2) being provided in the first stand and the servomotor (4) being provided in the second stand.

8. A spherical plain bearing grinding machine according to any of claims 1 to 7, characterized by comprising a gripper (6) for gripping the spherical plain bearing.

9. Joint bearing grinding machine according to claim 8, characterized in that the surface of the clamp (6) is coated with a flexible material.

10. A spherical plain bearing grinding machine according to claim 9, characterized in that the fixture (6) is embodied as a tool dedicated for quick release adapted to a variety of spherical plain bearings.