CN-121973037-A - Inner and outer ring grinding device for bearing machining

CN121973037ACN 121973037 ACN121973037 ACN 121973037ACN-121973037-A

Abstract

The invention discloses an inner ring and outer ring grinding device for bearing machining, which relates to the field of bearing machining and comprises a frame, wherein a driving rack device is fixedly connected to the frame, a positioning fixture device is rotationally connected to a fixing rack of the driving rack device, an outer ring grinding mechanism is vertically and slidingly connected to the fixing rack, outer ring grinding disks are rotationally and symmetrically connected to the outer ring grinding mechanism, a horizontal feeding device is connected to a feeding mechanism, a machining plate device is connected to the horizontal feeding device, a vertical through passage is formed in the machining plate device, two outer ring grinding disks can be inserted into the vertical passage, an inner ring grinding mechanism is slidingly arranged on the right side of the positioning fixture device, an inner ring grinding device is arranged on the inner ring grinding mechanism, and the inner ring grinding device and the positioning fixture device are fixedly clamped with a central axis.

Inventors

LIU YAN
DAI WENHAO
ZHOU CHENGWU
DAI YUKAI
LI MINGHAI

Assignees

蚌埠飞宇轴承有限公司

Dates

Publication Date: 20260505
Application Date: 20260319

Claims (7)

1. The inner and outer ring grinding device for bearing processing comprises a frame, an outer ring grinding mechanism, a feeding mechanism and an inner ring grinding mechanism, wherein a driving rack device is fixedly connected on the frame, the bearing processing device is characterized in that the driving rack device comprises a fixed rack, a first driving shaft is rotationally connected on the fixed rack, the right end of the first driving shaft is connected with a positioning clamp device, the left end of the first driving shaft is in transmission connection with a driving motor, the fixed rack is provided with a chute, a hydraulic cylinder device fixed on the rack is arranged below the chute, the outer ring polishing mechanism comprises a lifting table which is vertically and slidably connected in the chute, the lifting table is in transmission connection with the hydraulic cylinder device through a connecting rod, the lifting table is fixedly connected with symmetrically arranged obliquely upwards arranged fixed wing plates, two fixed wing plates are slidably connected with symmetrically arranged sliding tables, and the sliding tables are provided with outer ring polishing disks; The feeding mechanism comprises a horizontal feeding device, the horizontal feeding device is fixedly arranged on a fixed rack, the right end of the horizontal feeding device is connected with a vertical machining plate device which is arranged downwards, a vertical through channel is formed in the machining plate device, a positioning through groove which penetrates left and right and is coaxial with the first driving shaft is formed in the vertical channel, a side groove which penetrates front and back is formed in the vertical channel, and two outer ring polishing discs can penetrate into the vertical channel through the side groove; The inner ring polishing mechanism comprises a movable rack, the movable rack is slidably mounted on the right side of the driving rack device through a guide rail, the inner ring polishing device is arranged at the upper end of the movable rack, the inner ring polishing device comprises a second driving shaft which is rotatably connected onto the movable rack and is coaxial with the first driving shaft, the left end of the second driving shaft is fixedly connected with a positioning column which is coaxial with the central shaft, and the left end face of the positioning column is fixedly connected with an inner ring polishing disc which is coaxial with the central shaft.
2. The device for grinding inner and outer rings for machining bearings according to claim 1, wherein the upper end of the stationary gantry is provided with a mounting groove, the positioning fixture device comprises a connecting shaft sleeve with a rightward opening, the connecting shaft sleeve is provided with a heat dissipation chip removal hole, the right end face of the connecting shaft sleeve is connected with a limiting ring, and the limiting ring and the positioning through groove are coaxial.
3. The inner and outer ring grinding device for bearing machining according to claim 1, wherein the fixed wing plate is fixedly connected with a first precise cylinder, the output end of the first precise cylinder is in transmission connection with a sliding table, the sliding table is fixedly connected with a first servo motor device, and the outer ring grinding disc is fixedly connected to an output shaft of the first servo motor device.
4. The bearing machining inner and outer ring grinding device according to claim 1, wherein a fixed support is fixedly connected to a frame on the right side of the movable rack, a second precise cylinder connected with the movable rack is arranged on the fixed support, and a second servo motor device is connected to the right end of the second driving shaft in a transmission manner.
5. The grinding device for inner and outer rings for bearing machining according to claim 1, wherein the horizontal feeding device is provided with a left-right penetrating conveying round channel, the left end of the conveying round channel is provided with a horizontal pushing device, the horizontal pushing device comprises a feeding cylinder, and a pushing plate positioned in the conveying round channel is connected to the feeding cylinder.
6. The inner and outer ring grinding device for bearing machining according to claim 5, wherein the right end of the upper end face of the horizontal feeding device is provided with a vertical pushing device, the vertical pushing device comprises a mounting bracket, a positioning cylinder which is vertically arranged is fixedly connected to the mounting bracket, the lower end of the positioning cylinder is connected with a V-shaped positioning block, the V-shaped positioning block is slidably connected with a vertical channel, and the notch of the V-shaped positioning block is downwards arranged.
7. The inner and outer ring grinding device for bearing machining according to claim 1, wherein a material receiving box is arranged under the machining plate device, a material outlet is formed in the lower end of the side wall of the material receiving box, symmetrically arranged suction covers are fixedly connected to the upper ends of the front and rear side walls of the material receiving box, exhaust pipes are communicated with the suction covers, and the outer ring grinding disc is located in the suction covers.

Description

Inner and outer ring grinding device for bearing machining Technical Field The invention belongs to the field of bearing machining, and particularly relates to an inner and outer ring grinding device for bearing machining. Background The bearing is used as a core part in the mechanical industry, and the machining precision of the bearing directly determines the running stability and the service life of a host. In the manufacturing process of the bearing, the grinding processing of the inner ring and the outer ring is one of key working procedures, and the processing quality (such as dimensional tolerance, roundness, coaxiality and surface roughness) has decisive influence on the final rotation precision, vibration noise and bearing capacity of the bearing. Along with the development of mechanical equipment to high precision and high rotation speed, the precision requirement of the grinding processing of the bearing inner and outer rings is also increasingly severe. The existing grinding device lacks an accurate positioning scheme which can give consideration to the inner ring and the outer ring of the bearing and is not mutually interfered when the inner ring and the outer ring of the bearing are processed. In actual production, whether the inner ring is machined first and then the outer ring is machined, or the inner ring and the outer ring are machined in the same station in an attempt, the positioning standard of the workpiece is difficult to keep uniform. When grinding one part (such as an inner ring raceway), a strong grinding force is transmitted to other parts of the workpiece through the clamping mechanism, and a small amount of elastic deformation or displacement of a previously machined ring body (such as an outer ring reference surface) can be caused, so that the precision of a machined surface is damaged. The mutual influence in the processing process causes the problems that the coaxiality and roundness of the processed inner ring and outer ring cannot be ensured and the like, and the assembly precision and the rotation flexibility of the finished bearing product are seriously influenced. For example, a processing device for inner and outer rings of a bearing disclosed in chinese patent document CN202320330134.4, which discloses a polishing mechanism for inner and outer rings of a bearing, has the above problems, resulting in poor processing quality. Disclosure of Invention The invention aims at overcoming the defects of the prior art, and provides an inner and outer ring grinding device for bearing machining, which can clamp and fix the inner and outer rings of a bearing with high precision and high stability, effectively avoid the mutual influence of the inner and outer ring machining in the grinding process, and greatly improve the machining precision and the product quality of the bearing. In order to achieve the above purpose, the specific technical scheme of the invention is as follows: The inner ring and outer ring grinding device for bearing machining comprises a frame, an outer ring grinding mechanism, a feeding mechanism and an inner ring grinding mechanism, wherein a driving rack device is fixedly connected to the frame, the driving rack device comprises a fixed rack, a first driving shaft is rotationally connected to the fixed rack, the right end of the first driving shaft is connected with a positioning clamp device, the left end of the first driving shaft is in transmission connection with a driving motor, a chute is formed in the fixed rack, a hydraulic cylinder device fixed to the frame is arranged below the chute, the outer ring grinding mechanism comprises a lifting table which is vertically and slidably connected in the chute, the lifting table is in transmission connection with the hydraulic cylinder device through a connecting rod, fixed wing plates which are symmetrically arranged in an inclined manner are fixedly connected to the lifting table, sliding tables which are symmetrically arranged are connected to the two fixed wing plates, and an outer ring grinding disc is arranged on the sliding table; The feeding mechanism comprises a horizontal feeding device, the horizontal feeding device is fixedly arranged on a fixed rack, the right end of the horizontal feeding device is connected with a vertical machining plate device which is arranged downwards, a vertical through channel is formed in the machining plate device, a positioning through groove which penetrates left and right and is coaxial with the first driving shaft is formed in the vertical channel, a side groove which penetrates front and back is formed in the vertical channel, and two outer ring polishing discs can penetrate into the vertical channel through the side groove; The inner ring polishing mechanism comprises a movable rack, the movable rack is slidably mounted on the right side of the driving rack device through a guide rail, the inner ring polishing device is arranged at the upper end of the movable rac