Bearing processing equipment

Abstract

The present invention relates to the technical field of bearing processing, and specifically to a bearing processing equipment. The bearing processing equipment comprises: a workbench, on which a processing position is arranged; a conveyor belt is arranged on the workbench, and a plurality of through holes are arranged in an array in the conveying direction on the conveyor belt. A work frame is fixedly mounted on the workbench. A clamping assembly is mounted on the work frame, and the clamping assembly is used to fix the outer ring of the bearing to be processed. A grinding assembly is mounted on the work frame, and the grinding assembly is used to grind the inner wall of the outer ring of the bearing to be processed; a motor is fixedly mounted on the work frame and connected to the grinding assembly, and the motor is used to drive the grinding assembly to rotate to process the outer ring of the bearing. The present invention can perform continuous grinding processing on the outer ring of the bearing, with a fast processing cycle and high production efficiency. The present invention can perform intelligent processing while also performing intelligent detection and judgment through torque, thereby realizing the integrated operation of intelligent processing and judgment, and having strong operating performance.

Description

Technical Field

[0001] The invention relates to the technical field of bearing processing, and in particular to a bearing processing device. Background Art

[0002] Bearings are an important component in mechanical engineering, mainly used to support and limit rotational torque or motion friction. Its main function is to reduce friction loss, reduce wear, and protect machine parts from damage. There are many types of bearings, which can be divided into many types according to working environment, working principle, material and other factors. Common bearings include ball bearings, deep groove ball bearings, cylindrical roller bearings, self-aligning ball bearings, angular contact ball bearings, thrust ball bearings, needle roller bearings, etc. The main structure of the bearing includes inner ring, outer ring, rolling element, cage and sealing ring. Among them, the rolling element is responsible for bearing and dispersing radial and axial loads; the cage keeps the rolling element on the predetermined track during operation; the sealing ring is used to prevent the leakage of lubricating media and the intrusion of pollutants. The working principle of the bearing is mainly to reduce friction loss by rolling the rolling element. During the rolling process, due to the cooperation between the inner ring and the outer ring, the rolling element will constantly change the trajectory of motion, so that it is always in the best state, thereby achieving the purpose of reducing friction loss. The use of bearings is wide, covering various types of machinery and equipment, such as automobiles, motorcycles, trains, ships, airplanes, machine tools, motors, household appliances, etc.

[0003] The main function of the bearing is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. The general process of bearing processing includes bearing steel raw materials, turning into inner sleeves, outer sleeves, bead blanks, heat treatment, grinding into finished materials (grinding processes include internal grinding, external grinding, and centerless grinding), and assembling finished products. Among the various components of the bearing, the inner wall of the bearing outer ring and the outer wall of the bearing inner ring have high smoothness requirements. During the processing, burrs or roughness will be generated, affecting the use of the bearing. The existing bearing outer ring processing needs to be placed and processed one by one, which cannot achieve continuous processing and has low processing efficiency. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a bearing processing device for grinding the inner wall of the outer ring of the bearing, and the bearing processing device comprises:

[0005] The workbench is used to form a work surface. A processing position is arranged on the workbench. The upper surface of the workbench is a horizontal structure, so as to ensure that the outer ring of the bearing is placed stably during the processing and facilitate the transmission of the outer ring of the bearing. The shape of the workbench can be designed according to the actual use situation. It is generally a rectangular structure, etc. The outer ring of the bearing to be processed can be placed at the designated position of the processing position manually and then processed. In this case, manual operation is generally required and the efficiency is low. Of course, a conveyor belt can also be arranged on the workbench, and the conveyor belt is driven by a transmission drive. The structure of the conveyor belt and the transmission drive is a prior art, and the details are not repeated here. By transmitting the outer ring of the bearing through the conveyor belt, continuous operation of the production line can be realized. At this time, the workbench can be fixedly installed on the ground of the production line, and the workbench can be docked with the production line to realize continuous processing. This requires that the transmission drive is intermittent transmission, and its transmission and stop are consistent with the production line beat.

[0006] The work frame is fixedly installed on the workbench and is used to form the supporting installation body of the components. The work frame can be a gantry structure, a cross-shaped structure, etc., and the details will not be repeated here. Its specific settings can be set according to the actual production line conditions and operating conditions. When the work frame is a gantry structure, the two ends of the bottom of the work frame are fixedly connected to the workbench and are on both sides of the conveyor belt. The plane where the work frame is located can be perpendicular to the conveying direction of the conveyor belt. At this time, the work frame is required to have a certain width to provide space for component installation. When the work frame is a cross-shaped structure, the bottoms of the two opposite sides are fixedly connected to the workbench, and the remaining corresponding two sides provide installation space.

[0007] The clamping assembly is installed on the work frame and is used to fix the outer ring of the bearing to be processed.

[0008] The grinding assembly is installed on the work frame and is used to grind the inner wall of the outer ring of the bearing to be processed. The motor is fixedly installed on the work frame and connected to the grinding assembly, and is used to drive the grinding assembly to rotate to process the outer ring of the bearing. The grinding assembly can include a combination of a lifting drive structure, a telescopic rod and a grinding structure. The specific structure is not described here. This structure is relatively conventional, mainly because the structure is relatively complex, the power output is large, and each power output needs to be intelligently controlled and coordinated.

[0009] Preferably: support legs are fixedly arranged at the four corners of the bottom of the workbench, and the bottom of the support legs can be fixedly connected to the floor of the workshop, and the support legs can be welded to the floor, or fixedly connected to the gasket at the bottom of the support legs, and the gasket is provided with a mounting hole, and the support legs can be fixed to the floor through the mounting holes by mounting bolts, thereby completing the horizontal support installation of the workbench. A plurality of through holes are arranged in an array in the conveying direction on the conveyor belt, and the arrangement of the through holes facilitates the positioning and placement of the outer ring of the bearing, and at the same time leaves space for grinding, thereby avoiding damage to the conveyor belt during the grinding process.

[0010] Preferably: the clamping assembly may include a sliding drive structure and a harpoon structure, the sliding drive structure is used to drive the harpoon structure to slide, the harpoon structure is provided in two groups and is relatively arranged on the work frame, the sliding direction of the two harpoon structures is toward the placement position of the outer ring of the bearing, and the two harpoon structures slide inward to clamp the outer ring of the bearing from both sides. The harpoon structure slides to both sides to release the outer ring of the bearing. The harpoon structure includes at least one structural unit, when there are multiple structural units, each structural unit is fixedly connected and arranged in parallel, each structural unit needs to correspond to the through hole on the conveyor belt, and the conveying rhythm of the conveyor belt at this time needs to be a multiple of the number of structural units.

[0011] Preferably: the grinding assembly may also include a screw, a screw inner sleeve, a mounting frame and a grinding roller. The driving gear is rotatably connected to the output shaft of the motor, and the output shaft of the motor is coaxially fixedly connected with a screw. The screw thread fits and is nested inside the screw inner sleeve. The mounting frame may be a long plate-like structure. At this time, the number of grinding rollers needs to be consistent with the number of structural units and correspond one to one. The mounting frame is rotatably connected to the lower end of the screw inner sleeve, and the grinding roller is rotatably connected to the bottom of the mounting frame and is connected in transmission. The transmission connection may be a pulley and a belt combination, which is specifically a prior art and will not be described in detail here. The lower end of the screw inner sleeve is coaxially fixedly connected to one of the grinding rollers, and the mounting frame may be connected to the working frame through a guide structure. The guide structure is used to limit the rotation of the mounting frame, and the guide structure may be a combination of an optical axis and a linear bearing. The specific operation process can be as follows: driven by the motor, the screw rotates with the output shaft of the motor. Since the mounting frame cannot rotate with the screw inner sleeve due to the restriction of the guide structure, the screw inner sleeve and the mounting frame move downward. When the mounting frame drops to the upper end of the bearing outer ring, the grinding roller is inserted into the inner part of the bearing outer ring. At this time, the screw inner sleeve cannot drop, and the screw continues to rotate. At this time, the screw inner sleeve can drive the grinding roller to rotate, and the rotation of the grinding roller can grind the inner wall of the bearing outer ring. After grinding, the motor can be driven in the reverse direction, and the screw rotates in the reverse direction to lift the mounting frame.

[0012] Preferably: at this time, the clamping assembly may include a driving gear and a transmission gear rod, the driving gear is rotatably connected to the output shaft of the motor, and there is friction between the driving gear and the output shaft of the motor. The transmission gear rod is slidably connected to the working frame, the sliding direction of the transmission gear rod is consistent with the clamping assembly and the number is corresponding, the transmission gear rod is fixedly connected to the clamping assembly, and the clamping assembly at this time may only have a harpoon structure, and the transmission gear rod is meshed with the driving gear. Under the drive of the motor, the screw rotates with the output shaft of the motor, and the driving gear rotates with the output shaft of the motor. The rotation of the driving gear drives the transmission gear rod to slide, so that the clamping assembly can be brought together. Under the limiting effect of the guide structure, the mounting frame cannot rotate with the inner sleeve of the screw rod, so that the inner sleeve of the screw rod and the mounting frame move downward. When the mounting frame descends to the upper end of the outer ring of the bearing, the clamping assemblies on both sides are brought together to complete the clamping of the outer ring of the bearing, and then the grinding roller is inserted into the inner part of the outer ring of the bearing. At this time, the inner sleeve of the screw rod cannot descend, and the screw rod continues to rotate. At this time, the inner sleeve of the screw rod can drive the grinding roller to rotate, and the rotation of the grinding roller can grind the inner wall of the outer ring of the bearing. After grinding, the motor can be driven in the reverse direction. Due to the large friction between the grinding roller and the mounting frame, the screw rod rotates in the reverse direction to lift the mounting frame.

[0013] Preferably: an electromagnetic fixing ring A can be provided on the rotating shaft of the motor, and the electromagnetic fixing ring A is used to lock and unlock the driving gear. The electromagnetic fixing ring A can include an electromagnet, a sliding ring and a limiting hole. The electromagnet is fixedly connected to the output shaft of the motor, and the mass of the electromagnet needs to be evenly distributed circumferentially. The sliding ring can be lifted and nested on the output shaft of the motor. A plurality of limiting rods are fixedly connected below the sliding ring, and the limiting rods need to be evenly distributed. At this time, the driving gear can be rotatably connected with the output shaft of the motor without friction. A plurality of limiting holes are provided on the driving gear, and the number of limiting holes and limiting rods is consistent and the relative position corresponds. When the electromagnetic fixing ring A locks the driving gear, the electromagnet is closed, and the limiting rod of the sliding ring is inserted into the inside of the limiting hole under the action of gravity. At this time, the driving gear can rotate with the motor drive, thereby completing the sliding drive of the clamping assembly to clamp and release. When the electromagnetic fixing ring A unlocks the driving gear, that is, when the assembly needs to be polished after clamping, the electromagnet can be started, and the electromagnet adsorbs the sliding ring to lift the sliding ring, and the limiting rod is separated from the limiting hole, and the driving gear cannot rotate on the output shaft of the motor. An electromagnetic fixing ring B may also be provided between the inner sleeve of the screw and the mounting frame. The electromagnetic fixing ring B has the same structure as the electromagnetic fixing ring A, and the details are not described here. By providing the electromagnetic fixing ring A and the electromagnetic fixing ring B, the friction between the various components can be reduced, equipment wear can be avoided, and the sequence of various actions can be controlled to coordinate operations. At this time, a friction block needs to be provided between the driving gear and the operating frame to limit rotation, and the specific structure will not be described. The specific coordination process can be as follows: when the outer ring of the bearing is in place, the motor is started, and the electromagnetic fixing ring A is closed at this time, and at the same time, the electromagnetic fixing ring B is closed to lock the inner sleeve of the screw and the mounting frame, and the output shaft of the driving gear and the motor is locked. Driven by the motor, the screw and the driving gear rotate with the output shaft of the motor. At this time, the driving gear rotates with the output shaft of the motor. The rotation of the driving gear drives the transmission gear rod to slide, so that the clamping assembly can be brought together to clamp the outer ring of the bearing. Then the electromagnetic fixing ring A is started to unlock the driving gear. The driving gear cannot rotate, which drives the mounting frame to be unable to rotate with the inner sleeve of the screw due to the restriction of the guide structure, so that the inner sleeve of the screw and the mounting frame move downward. When the mounting frame descends to the upper end of the outer ring of the bearing, the clamping assemblies on both sides are brought together to complete the clamping of the outer ring of the bearing. Then the grinding roller is inserted into the inner part of the outer ring of the bearing. At this time, the inner sleeve of the screw cannot descend, and the electromagnetic fixing ring B is unlocked. The screw continues to rotate. At this time, the inner sleeve of the screw can drive the grinding roller to rotate to grind the inner wall of the outer ring of the bearing. After the processing is completed, the motor outputs in the reverse direction, and the inner sleeve of the screw is lifted and separated from the outer ring of the bearing. The electromagnetic fixing ring A locks the driving gear and can release the outer ring of the bearing.

[0014] Preferably: a discharge port and a blanking hole are provided at the corresponding position of the processing position, the number of blanking holes is consistent with the number of grinding rollers and corresponds one to one, the blanking hole is arranged vertically, the discharge port is arranged horizontally and passes through the workbench, the discharge port is connected with the blanking hole, the bottom surface of the discharge port can be arranged tilted, and the debris from the grinding of the outer ring of the bearing enters the inside of the discharge port through the blanking hole under the action of gravity for collection, thus avoiding pollution caused by the splash of debris. A support assembly can be fixedly installed inside the blanking hole, and the support assembly is used to provide rotational support for the grinding roller being ground, so that the grinding roller rotates stably, avoiding eccentric grinding caused by eccentric rotation, and the grinding roller and the outer ring of the bearing can be separated and then released through the elastic support of the support assembly, thus ensuring the sequential linkage of the operation.

[0015] Preferably: the grinding roller may also specifically adopt existing grinding parts, but when the grinding roller enters the inner part of the bearing outer ring, there will be axial friction causing difficulty in positioning and insufficient friction pressure. The grinding roller may also include a main frame, a grinding table and a grinding block. The main frame is rotatably connected to the bottom of the mounting frame. The main frame may be a circular structure. A plurality of grinding blocks are provided at the bottom of the main frame and radially slide around the rotation center of the main frame. The grinding blocks may be arc-shaped columnar structures. The plurality of grinding blocks may slide synchronously. The grinding table is rotatably nested inside the grinding block and rotates coaxially through the main frame and is fixedly connected to the inner sleeve of the screw or the transmission structure. A spiral groove is provided on the inclined surface of the grinding table. The inner wall of the grinding block is liftably connected to a sliding rod. The sliding rod is slidably nested inside the spiral groove. When the grinding roller is inserted into the inner part of the bearing outer ring, the grinding table will move along with the screw. The inner sleeve of the rod rotates. Since the grinding block cannot be raised or lowered, it drives the grinding block to slide outward as the grinding table rotates. The sliding of the grinding block makes its outer wall contact with the inner wall of the bearing outer ring. When the grinding block cannot slide outward, the grinding block will grind the inner wall of the bearing outer ring as the grinding table rotates. The grinding pressure of the inner wall of the bearing outer ring can be controlled by different grinding roller rotation speeds. The grinding can be controlled intelligently. When the grinding roller enters the bearing outer ring, the outer diameter of the grinding roller is small. After it is in place, the grinding block moves outward as the grinding table rotates, which can automatically expand and realize the gradual increase of grinding pressure. Excessive pressure will not cause damage to the grinding roller and the bearing outer ring, and the equipment has high safety.

[0016] Preferably: a torque sensor can be installed on the grinding roller to sense the torque borne by the grinding roller. The specific structure and working principle of the torque sensor are prior art and will not be described in detail here.

[0017] The controller can be electrically connected to the transmission drive, the motor, the torque sensor, the electromagnetic fixing ring A and the electromagnetic fixing ring B. The controller is used to control the transmission drive to move the conveyor belt. The moving distance and the rest time of the conveyor belt need to meet the processing rhythm of the outer ring of the bearing. For example, if the number of clamping components is three, the moving distance of the conveyor belt driven by the transmission drive is three times the through hole spacing, and the rest time is the processing time of the outer ring of the bearing. The controller is also used to control the rotation direction and speed of the motor, and control the locking and unlocking of the electromagnetic fixing ring A and the electromagnetic fixing ring B. When the outer ring of the bearing to be processed enters the processing position, the controller controls the motor to drive forward. At this time, the electromagnetic fixing ring A locks the driving gear, and the electromagnetic fixing ring B locks the mounting frame. Under the drive of the motor, the lead screw and the driving gear rotate with the output shaft of the motor. The rotation of the driving gear drives the transmission gear rod to slide, so that the clamping components can be brought together to clamp the outer ring of the bearing, and then the electromagnetic fixing ring A is started to unlock the driving gear, and the driving gear cannot rotate with the output shaft of the motor. The screw rotates to move the screw inner sleeve and the mounting frame downward. When the mounting frame descends to the upper end of the bearing outer ring, the grinding table will rotate with the screw inner sleeve. Since the grinding block cannot be raised or lowered, the grinding table drives the grinding block to slide outward as it rotates. The sliding of the grinding block makes its outer wall contact the inner wall of the bearing outer ring. When the grinding block cannot slide outward, the grinding block will grind the inner wall of the bearing outer ring as the grinding table rotates. The controller searches for a pre-set characteristic-speed information table according to the characteristics of the bearing outer ring, thereby obtaining the speed v of the motor, and then the controller controls the motor to drive at the speed v. The bearing outer ring characteristics can be the material and roughness of the bearing outer ring. The harder the material of the bearing outer ring, the greater the speed required, and the greater the roughness, the greater the speed required. The characteristic-speed information table can be obtained through experiments. At the same time, the grinding performance of the grinding roller needs to be considered. The specific values ​​need to be obtained through specific experiments. The values ​​are not universal and do not affect the implementation of this application, so they are not repeated here. Of course, the speed can also be increased directly at an increasing speed, which is not repeated here. Of course, you can also adjust the speed manually, but I will not go into details here. The controller senses the torque F exerted on the grinding roller through the torque sensor. Then construct a two-dimensional time-force coordinate system, with the horizontal axis being time and the vertical axis being force. Then construct a torque curve using the grinding time t and its corresponding torque F. Then calculate the current grinding fluctuation coefficient R, and determine whether the grinding fluctuation coefficient R is greater than a pre-set standard fluctuation coefficient R mark. If so, continue grinding. If not, determine that the grinding is qualified and end grinding. The grinding fluctuation coefficient Where N is the current time point, T is the evaluation time period, of course, other time periods cannot be excluded, and F' is the grinding torque of the finished product of the current bearing outer ring type, which can be obtained through experiments, and the details will not be repeated here. Since the structure of the grinding roller can maintain a certain grinding pressure between the outer wall of the grinding block and the inner wall of the bearing outer ring through the rotation speed, F' is the theoretical torque after the grinding is completed. By calculating the grinding fluctuation, it is not only necessary to evaluate whether the grinding pressure is met, but also to evaluate the smoothness of the inner wall of the bearing outer ring. The evaluation is more comprehensive. After the grinding is completed, the motor can be driven in the reverse direction, and the grinding table rotates in the reverse direction. Since the grinding block cannot be raised or lowered, the grinding block slides inward and disengages from the bearing outer ring. At this time, the electromagnetic fixing ring B is locked, and the screw rotates in the reverse direction to lift the mounting frame. The grinding roller is disengaged from the inner wall of the bearing outer ring, and the electromagnetic fixing ring A locks the drive gear, which can release the bearing outer ring. The controller controls the transmission drive to drive the conveyor belt for transmission.

[0018] The technical effects and advantages of the present invention are as follows: The present invention can continuously grind the outer ring of the bearing, with a fast processing cycle and high production efficiency. The present invention can perform intelligent processing and intelligent detection and judgment through torque at the same time, realizing the integrated operation of intelligent processing and judgment, and having strong operating performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional layered structure of a bearing processing equipment proposed by the present invention.

[0020] Figure 2 The figure is a schematic diagram of the top view of the bearing processing equipment proposed by the present invention.

[0021] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of section AA.

[0022] Figure 4 A schematic diagram of the three-dimensional structure of a grinding component in a bearing processing device proposed by the present invention.

[0023] Figure 5 The present invention is a schematic diagram of a top view of the structure of a grinding assembly in a bearing processing device.

[0024] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure of the BB section.

[0025] Figure 7 This is a schematic diagram of the three-dimensional structure of a grinding roller in a bearing processing device proposed by the present invention.

[0026] Figure 8 This is a schematic diagram of the internal structure of a grinding roller in a bearing processing device proposed by the present invention.

[0027] Fig. 9 This is a schematic diagram of the three-dimensional structure of an expansion component in a bearing processing device proposed by the present invention.

[0028] Explanation of the accompanying drawings: workbench 1, conveyor belt 2, work frame 3, transmission gear rod 4, grinding assembly 5, motor 6, clamping assembly 7, through hole 8, transmission drive member 9, discharge port 10, drive gear 11, support assembly 12, blanking hole 13, electromagnet 14, sliding ring 15, limiting rod 16, limiting hole 17, screw 18, screw inner sleeve 19, electromagnetic fixing ring B20, mounting frame 21, grinding roller 22, main frame 23, grinding block 24, grinding round table 25, sliding rod 26, spiral groove 27. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0030] Example 1

[0031] refer to Figure 1-Figure 3 In this embodiment, a bearing processing device is proposed for grinding the inner wall of the outer ring of the bearing. The bearing processing device includes:

[0032] Workbench 1, workbench 1 is used to form a work surface, and a processing position is set on the workbench 1. The upper surface of the workbench 1 is a horizontal structure, so as to ensure that the outer ring of the bearing is placed stably and conveniently during the processing, and to facilitate the transmission of the outer ring of the bearing. The shape of the workbench 1 can be designed according to the actual use situation, generally a rectangular structure, etc., and the outer ring of the bearing to be processed can be placed at the designated position of the processing position manually and then processed. In this case, manual operation is generally required and the efficiency is low. Of course, a conveyor belt 2 can also be set on the workbench 1, and the conveyor belt 2 is driven by a transmission drive 9. The structure of the conveyor belt 2 and the transmission drive 9 is the prior art, and the specific details are not repeated here. By transmitting the outer ring of the bearing through the conveyor belt 2, the continuous operation of the production line can be realized. At this time, the workbench 1 can be fixedly installed on the ground of the production line, and the workbench 1 can be docked with the production line to realize continuous processing. It is required that the transmission drive 9 is intermittently transmitted, and its transmission and stop are consistent with the beat of the production line. The control of the beat is specifically the prior art, and it is not repeated here. Support legs are fixedly arranged at the four corners of the bottom of the workbench 1. The bottom of the support legs can be fixedly connected to the floor of the workshop. The support legs can be welded to the floor, or fixedly connected to the gasket at the bottom of the support legs. The gasket is provided with a mounting hole, and the support legs can be fixed to the floor through the mounting holes by mounting bolts, thereby completing the horizontal support installation of the workbench 1. A plurality of through holes 8 are arranged in an array in the transmission direction on the conveyor belt 2. The arrangement of the through holes 8 facilitates the positioning and placement of the outer ring of the bearing, and at the same time leaves space for grinding, thereby avoiding damage to the conveyor belt 2 during the grinding process.

[0033] The work frame 3 is fixedly mounted on the workbench 1 and is used to form a supporting installation body for the components. The work frame 3 may be a gantry structure, a cross-shaped structure, etc., which will not be described in detail here. Its specific settings can be set according to the actual production line conditions and operating conditions. When the work frame 3 is a gantry structure, both ends of the bottom of the work frame 3 are fixedly connected to the workbench 1 and are on both sides of the conveyor belt 2. The plane where the work frame 3 is located can be perpendicular to the conveying direction of the conveyor belt 2. At this time, the work frame 3 is required to have a certain width to provide space for component installation. When the work frame 3 is a cross-shaped structure, the bottoms of the two opposite sides are fixedly connected to the workbench 1, and the remaining corresponding two sides provide installation space. The details will not be described here.

[0034] The clamping assembly 7 is installed on the working frame 3 and is used to fix the outer ring of the bearing to be processed. The clamping assembly 7 may include a sliding drive structure and a harpoon structure. The sliding drive structure is used to drive the harpoon structure to slide. The harpoon structure is provided in two groups and is relatively arranged on the working frame 3. The sliding directions of the two harpoon structures are toward the placement position of the outer ring of the bearing. The two harpoon structures slide inward to clamp the outer ring of the bearing from both sides. The harpoon structure slides to both sides to release the outer ring of the bearing. The harpoon structure includes at least one structural unit. When there are multiple structural units, each structural unit is fixedly connected and arranged in parallel. Each structural unit needs to correspond to the through hole 8 on the conveyor belt 2. Generally, the number of structural units is 3-5. At this time, the transmission rhythm of the conveyor belt 2 needs to be a multiple of the number of structural units.

[0035] The grinding assembly 5 is mounted on the work frame 3 and is used to grind the inner wall of the outer ring of the bearing to be processed. The motor 6 is fixedly mounted on the work frame 3 and connected to the grinding assembly 5, and is used to drive the grinding assembly 5 to rotate and process the outer ring of the bearing. The grinding assembly 5 may include a combination of a lifting drive structure, a telescopic rod and a grinding structure. The specific structure is not described here. This structure is relatively conventional, mainly because the structure is relatively complex, the power output is large, and each power output requires intelligent control and coordination. Figure 4-Figure 6, the grinding assembly 5 may also include a screw 18, a screw inner sleeve 19, a mounting frame 21 and a grinding roller 22. The driving gear 11 is rotatably connected to the output shaft of the motor 6, and the output shaft of the motor 6 is coaxially fixedly connected with the screw 18, and the screw 18 is threadedly nested in the interior of the screw inner sleeve 19. The mounting frame 21 can be a long plate-like structure. At this time, the number of grinding rollers 22 needs to be consistent with the number of structural units and correspond one to one. The grinding roller 22 is rotatably connected to the bottom of the mounting frame 21 and is connected in transmission. The transmission connection can be a pulley and a belt combination, which is specifically a prior art and will not be described here. The lower end of the screw inner sleeve 19 is coaxially fixedly connected to one of the grinding rollers 22, and the mounting frame 21 can be connected to the working frame 3 through a guide structure, and the guide structure is used to limit the rotation of the mounting frame 21. The guide structure can be a combination of an optical axis and a linear bearing. The specific operation process can be as follows: under the drive of the motor 6, the screw 18 rotates with the output shaft of the motor 6. Since the mounting frame 21 cannot rotate with the screw inner sleeve 19 under the restriction of the guide structure, the screw inner sleeve 19 and the mounting frame 21 move downward. When the mounting frame 21 drops to the upper end of the bearing outer ring, the grinding roller 22 is inserted into the inner part of the bearing outer ring. At this time, the screw inner sleeve 19 cannot drop, and the screw 18 continues to rotate. At this time, the screw inner sleeve 19 can drive the grinding roller 22 to rotate, and the grinding roller 22 can grind the inner wall of the bearing outer ring. After the grinding is completed, the motor 6 can be driven in the reverse direction, and the screw 18 rotates in the reverse direction to lift the mounting frame 21. At this time, the clamping assembly 7 may include a driving gear 11 and a transmission gear rod 4. The driving gear 11 is rotatably connected to the output shaft of the motor 6, and there is friction between the driving gear 11 and the output shaft of the motor 6. The transmission gear rod 4 is slidably connected to the working frame 3, and the sliding direction of the transmission gear rod 4 is consistent with the clamping assembly 7 and the number corresponds. The transmission gear rod 4 is fixedly connected to the clamping assembly 7. At this time, the clamping assembly 7 can only have a harpoon structure, and the transmission gear rod 4 is meshed with the driving gear 11. Under the drive of the motor 6, the screw rod 18 rotates with the output shaft of the motor 6. At this time, the driving gear 11 rotates with the output shaft of the motor 6. The rotation of the driving gear 11 drives the transmission gear rod 4 to slide, so that the clamping assembly 7 can be brought together. Under the restriction of the guide structure, the mounting frame 21 cannot rotate with the screw rod inner sleeve 19, so that the screw rod inner sleeve 19 and the mounting frame 21 move downward. When the mounting frame 21 drops to the upper end of the bearing outer ring, the clamping assemblies 7 on both sides are brought together to complete the clamping of the bearing outer ring. Then the grinding roller 22 is inserted into the inner part of the bearing outer ring. At this time, the screw rod inner sleeve 19 cannot drop, and the screw rod 18 continues to rotate. At this time, the screw rod inner sleeve 19 can drive the grinding roller 22 to rotate. The rotation of the grinding roller 22 can grind the inner wall of the bearing outer ring. After grinding, the motor 6 can be driven in reverse. Due to the large friction between the grinding roller 22 and the mounting frame 21, the screw rod 18 rotates in the reverse direction to lift the mounting frame 21.Of course, at this time, an electromagnetic fixing ring A can be provided on the rotating shaft of the motor 6, and the electromagnetic fixing ring A is used to lock and unlock the driving gear 11. The electromagnetic fixing ring A can include an electromagnet 14, a sliding ring 15 and a limiting hole 17. The electromagnet 14 is fixedly connected to the output shaft of the motor 6, and the mass of the electromagnet 14 needs to be evenly distributed circumferentially. The sliding ring 15 can be lifted and nested on the output shaft of the motor 6. A plurality of limiting rods 16 are fixedly connected below the sliding ring 15, and the limiting rods 16 need to be evenly distributed. At this time, the driving gear 11 can be rotatably connected to the output shaft of the motor 6 without friction. A plurality of limiting holes 17 are provided on the driving gear 11, and the number of limiting holes 17 and the limiting rods 16 are consistent and the relative positions correspond. When the electromagnetic fixing ring A locks the driving gear 11, the electromagnet 14 is closed, and the limiting rod 16 of the sliding ring 15 is inserted into the inside of the limiting hole 17 under the action of gravity. At this time, the driving gear 11 can rotate with the driving of the motor 6, thereby completing the sliding drive of the clamping assembly 7 to clamp and release. When the electromagnetic fixing ring A unlocks the drive gear 11, that is, when the grinding assembly 5 needs to be operated after clamping, the electromagnet 14 can be started, and the electromagnet 14 adsorbs the sliding ring 15, so that the sliding ring 15 is lifted, and the limiting rod 16 is separated from the limiting hole 17, and the drive gear 11 cannot rotate on the output shaft of the motor 6. An electromagnetic fixing ring B20 can also be arranged between the screw inner sleeve 19 and the mounting frame 21. The electromagnetic fixing ring B20 has the same structure as the electromagnetic fixing ring A, and the specific details are not repeated here. By setting the electromagnetic fixing ring A and the electromagnetic fixing ring B20, the friction between the various components can be reduced, the equipment wear can be avoided, and the sequence of various actions can be controlled to cooperate with the operation. At this time, a friction block needs to be set between the drive gear 11 and the operating frame 3 to limit the rotation, and the specific structure is not described. The specific cooperation process can be as follows: when the outer ring of the bearing is in place, the motor 6 is started, and the electromagnetic fixing ring A is closed at this time, and the electromagnetic fixing ring B20 is closed to lock the screw inner sleeve 19 and the mounting frame 21, and the output shaft of the drive gear 11 and the motor 6 is locked. Driven by the motor 6, the screw 18 and the driving gear 11 rotate with the output shaft of the motor 6. At this time, the driving gear 11 rotates with the output shaft of the motor 6. The rotation of the driving gear 11 drives the transmission gear rod 4 to slide, so that the clamping assembly 7 can be brought together to clamp the outer ring of the bearing, and then the electromagnetic fixing ring A is started to unlock the driving gear 11. The driving gear 11 cannot rotate, and the mounting frame 21 cannot rotate with the screw inner sleeve 19 due to the restriction of the guide structure, so that the screw inner sleeve 19 and the mounting frame 21 move downward. When the mounting frame 21 descends to the upper end of the outer ring of the bearing, the clamping assemblies 7 on both sides are brought together to complete the clamping of the outer ring of the bearing, and then the grinding roller 22 is inserted into the inner part of the outer ring of the bearing. At this time, the screw inner sleeve 19 cannot descend, and the electromagnetic fixing ring B20 is unlocked. The screw 18 continues to rotate. At this time, the screw inner sleeve 19 can drive the grinding roller 22 to rotate to grind the inner wall of the outer ring of the bearing.After the processing is completed, the motor 6 outputs in the reverse direction, and the inner sleeve 19 of the screw rod is lifted and separated from the outer ring of the bearing. The electromagnetic fixing ring A locks the driving gear 11 and can release the outer ring of the bearing. At this time, the corresponding position of the processing position is provided with a discharge port 10 and a blanking hole 13. The number of blanking holes 13 is consistent with the number of grinding rollers 22 and corresponds one to one. The blanking hole 13 is arranged vertically, and the discharge port 10 is arranged horizontally and passes through the workbench 1. The discharge port 10 is connected with the blanking hole 13. The bottom surface of the discharge port 10 can be tilted. The debris from the grinding of the outer ring of the bearing enters the inside of the discharge port 10 through the blanking hole 13 under the action of gravity for collection, thereby avoiding pollution caused by splashing debris. The support assembly 12 can be fixedly installed inside the blanking hole 13. The support assembly 12 is used to rotatably support the grinding roller 22 for grinding, so that the grinding roller 22 can rotate stably and avoid eccentric grinding caused by eccentric rotation. When the electromagnetic fixing ring A and the electromagnetic fixing ring B20 are not provided, the elastic support of the support assembly 12 can make the grinding roller 22 and the outer ring of the bearing detach first and then release, thereby ensuring the sequential linkage of the operation. The grinding roller 22 can also specifically adopt the existing grinding parts, but when the grinding roller 22 enters the inner part of the outer ring of the bearing, there will be axial friction that makes it difficult to position, and it will also cause insufficient friction pressure. Reference. Figure 7-Figure 9 The grinding roller 22 may also include a main frame 23, a grinding table 25 and a grinding block 24. The main frame 23 is rotatably connected to the bottom of the mounting frame 21. The main frame 23 may be a circular structure. A plurality of grinding blocks 24 are radially slidably arranged at the bottom of the main frame 23 and about the rotation center of the main frame 23. The grinding blocks 24 may be arc-shaped columnar structures. The plurality of grinding blocks 24 may slide synchronously. The grinding table 25 is rotatably nested inside the grinding block 24 and rotates coaxially through the main frame 23 and is fixedly connected to the inner sleeve 19 of the screw rod or the transmission structure. A spiral groove 27 is provided on the inclined surface of the grinding table 25. The inner wall of the grinding block 24 is liftably connected to a sliding rod 26. The sliding rod 26 is slidably nested inside the spiral groove 27. When the grinding roller 22 is inserted into the inner part of the outer ring of the bearing The grinding table 25 will rotate with the inner sleeve 19 of the screw rod. Since the grinding block 24 cannot be raised or lowered, the grinding table 25 drives the grinding block 24 to slide outward as it rotates. The grinding block 24 slides so that its outer wall contacts the inner wall of the outer ring of the bearing. When the grinding block 24 cannot slide outward, the grinding block 24 will grind the inner wall of the outer ring of the bearing as the grinding table 25 rotates. The grinding pressure of the inner wall of the outer ring of the bearing can be controlled by different rotation speeds of the grinding roller 22. The grinding can be controlled intelligently. When the grinding roller 22 enters the outer ring of the bearing, the outer diameter of the grinding roller 22 is small. After it is in place, the grinding block 24 moves outward as the grinding table 25 rotates, which can automatically expand and realize the gradual increase of the grinding pressure. Excessive pressure will not cause damage to the grinding roller 22 and the outer ring of the bearing, and the equipment has high safety.

[0036] The torque sensor can be installed on the grinding roller 22 to detect the torque borne by the grinding roller 2 during operation. The specific structure and working principle of the torque sensor are prior art and will not be described in detail here.

[0037] The controller can be electrically connected to the transmission drive 9, the motor 6, the torque sensor, the electromagnetic fixing ring A and the electromagnetic fixing ring B20. Multiple controllers can be set, and they correspond to each electronic component one by one. Each controller controls the switch of each component and the speed of the motor 6. Of course, the controller can also be a PLC intelligent controller. The controller is used to control the transmission drive 9 to drive the conveyor belt 2, so that the conveyor belt 2 moves. The moving distance and rest time of the conveyor belt 2 need to meet the processing rhythm of the outer ring of the bearing. For example, if the number of clamping components 7 is three, then the transmission drive 9 drives the conveyor belt 2 to move three times the spacing of the through holes 8, and the rest time is the processing time of the outer ring of the bearing. The controller is also used to control the rotation direction and speed of the motor 6, and control the locking and unlocking of the electromagnetic fixing ring A and the electromagnetic fixing ring B20. When the outer ring of the bearing to be processed enters the processing position, the controller controls the motor 6 to drive forward. At this time, the electromagnetic fixing ring A locks the drive gear 11, and the electromagnetic fixing ring B20 locks the mounting frame 21. Driven by the motor 6, the screw rod 18 and the driving gear 11 rotate with the output shaft of the motor 6, and the driving gear 11 rotates to drive the transmission gear rod 4 to slide, so that the clamping assembly 7 can be brought together to clamp the outer ring of the bearing, and then the electromagnetic fixing ring A is started to unlock the driving gear 11, and the driving gear 11 cannot rotate with the output shaft of the motor 6. The screw rod 18 rotates to move the screw rod inner sleeve 19 and the mounting frame 21 downward. When the mounting frame 21 descends to the upper end of the outer ring of the bearing, the grinding table 25 will rotate with the screw rod inner sleeve 19. Since the grinding block 24 cannot be raised or lowered, as the grinding table 25 rotates, it drives the grinding block 24 to slide outward. The sliding of the grinding block 24 makes its outer wall contact with the inner wall of the outer ring of the bearing. When the grinding block 24 cannot slide outward, the grinding block 24 will rotate with the grinding table 25 to grind the inner wall of the outer ring of the bearing. The controller searches for a preset characteristic-speed information table according to the characteristics of the outer ring of the bearing, thereby obtaining the speed v of the motor 6, and then the controller controls the motor 6 to drive at the speed v. The characteristics of the outer ring of the bearing can be the material and roughness of the outer ring of the bearing. The harder the material of the outer ring of the bearing, the greater the speed required, and the greater the roughness, the greater the speed required. The characteristic-speed information table can be obtained through experiments, and the grinding performance of the grinding roller 22 needs to be considered. The specific values ​​need to be obtained through specific experiments. The values ​​are not universal and do not affect the implementation of this application, so they will not be elaborated here. Of course, the speed can also be increased directly at an increasing speed, which will not be elaborated here. Of course, the speed can also be adjusted manually, which will not be elaborated here. The controller senses the torque F exerted on the grinding roller 22 through the torque sensor.Then, a two-dimensional time-force coordinate system is constructed, with the horizontal coordinate being time and the vertical coordinate being force, and then a torque curve is constructed by the grinding time t and its corresponding torque F, and then the current grinding fluctuation coefficient R is calculated, and it is determined whether the grinding fluctuation coefficient R is greater than a preset standard fluctuation coefficient R mark, if yes, then grinding is continued, if not, then it is determined that the grinding is qualified and the grinding can be terminated. The grinding fluctuation coefficient. Where N is the current time point, T is the evaluation time period, which is generally 3-10S, and other time periods cannot be excluded. F' is the grinding torque of the finished product of the current bearing outer ring type, which can be obtained through experiments, and the details are not repeated here. Since the structure of the grinding roller 22 can maintain a certain grinding pressure between the outer wall of the grinding block 24 and the inner wall of the bearing outer ring through the rotation speed, F' is the theoretical torque after the grinding is completed. By calculating the grinding fluctuation, it is not only necessary to evaluate whether the grinding pressure is met, but also to evaluate the smoothness of the inner wall of the bearing outer ring, and the evaluation is relatively comprehensive. After the grinding is completed, the motor 6 can be driven in the reverse direction, and the grinding table 25 rotates in the reverse direction. Since the grinding block 24 cannot be raised or lowered, the grinding block 24 slides inward and disengages from the bearing outer ring. At this time, the electromagnetic fixing ring B20 is locked, and the screw 18 rotates in the reverse direction to lift the mounting frame 21. The grinding roller 22 is disengaged from the inner wall of the bearing outer ring, and the electromagnetic fixing ring A locks the drive gear 11, which can release the bearing outer ring. The controller controls the transmission drive 9 to drive the conveyor belt 2 for transmission. The present invention can continuously grind the outer ring of the bearing, with fast processing cycle and high production efficiency. The present invention can perform intelligent processing and intelligent detection and judgment through torque at the same time, realizing the integrated operation of intelligent processing and judgment, and has strong operating performance.

[0038] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A bearing processing equipment, characterized in that: The bearing processing equipment comprises: A workbench, on which a processing position is arranged; a conveyor belt is arranged on the workbench, and a plurality of through holes are arranged in an array in a conveying direction; The work frame is fixedly installed on the workbench; A clamping assembly is installed on the work frame, and is used to fix the outer ring of the bearing to be processed; A grinding assembly is installed on the work stand and is used to grind the inner wall of the outer ring of the bearing to be processed; The motor is fixedly mounted on the work frame and connected to the grinding assembly. The motor is used to drive the grinding assembly to rotate and process the outer ring of the bearing; The grinding assembly also includes a screw, a screw inner sleeve, a mounting frame and a grinding roller; the output shaft of the motor is coaxially fixedly connected with the screw, the screw thread is nested in the screw inner sleeve, the mounting frame is rotatably connected to the lower end of the screw inner sleeve, and the grinding roller is rotatably connected to the bottom of the mounting frame and is transmission-connected; the lower end of the screw inner sleeve is coaxially fixedly connected to one of the grinding rollers, and the mounting frame is connected to the working frame through a guide structure, and the guide structure is used to limit the rotation of the mounting frame; The clamping assembly includes a driving gear and a transmission gear rod, the driving gear is rotatably connected to the output shaft of the motor, and there is friction between the driving gear and the output shaft of the motor; the transmission gear rod is slidably connected to the working frame, the sliding direction of the transmission gear rod is consistent with the clamping assembly and the number of the transmission gear rod is corresponding, the transmission gear rod is fixedly connected to the clamping assembly, and the transmission gear rod is meshed with the driving gear; An electromagnetic fixing ring A is provided on the motor rotating shaft, and the electromagnetic fixing ring A is used to lock and unlock the driving gear; The electromagnetic fixing ring A comprises an electromagnet, a sliding ring and a limiting hole. The electromagnet is fixedly connected to the output shaft of the motor. The sliding ring can be lifted and nested on the output shaft of the motor. A plurality of limiting rods are fixedly connected below the sliding ring. The limiting rods need to be evenly distributed. The driving gear is rotatably connected to the output shaft of the motor. A plurality of limiting holes are opened on the driving gear. The number of limiting holes is consistent with that of the limiting rods and their relative positions correspond. The grinding roller includes a main frame, a grinding table and a grinding block. The main frame is rotatably connected to the bottom of the mounting frame. A plurality of grinding blocks are arranged at the bottom of the main frame and radially slide around the rotation center of the main frame. The grinding table is rotatably nested inside the grinding block and rotates coaxially through the main frame and is fixedly connected to the inner sleeve of the screw rod or the transmission structure. A spiral groove is opened on the inclined surface of the grinding table. The inner wall of the grinding block is liftably connected to a sliding rod, and the sliding rod is slidably nested inside the spiral groove.

2. A bearing processing device according to claim 1, characterized in that: The clamping assembly includes a sliding drive structure and a harpoon structure. The sliding drive structure is used to drive the harpoon structure to slide. The harpoon structure is arranged in two groups and is arranged opposite to each other on the working frame. The sliding directions of the two harpoon structures are toward the placement position of the outer ring of the bearing. The harpoon structure includes at least one structural unit. When there are multiple structural units, each structural unit is fixedly connected and arranged in parallel. Each structural unit needs to correspond to the through hole on the conveyor belt.

3. A bearing processing device according to claim 1, characterized in that: A discharge port and a blanking hole are provided at corresponding positions of the processing position. The blanking hole is arranged vertically, and the discharge port is arranged horizontally and passes through the workbench. The discharge port is communicated with the blanking hole.

4. A bearing processing device according to claim 1, characterized in that: The bearing processing equipment also includes: A torque sensor is installed on the grinding roller and is used to sense the torque borne by the grinding roller; The controller is electrically connected to the transmission drive, the motor, the torque sensor, the electromagnetic fixing ring A and the electromagnetic fixing ring B; when the outer ring of the bearing to be processed enters the processing position, the controller controls the motor to drive in the forward direction, at which time the electromagnetic fixing ring A locks the driving gear, and the electromagnetic fixing ring B locks the mounting frame; under the drive of the motor, the lead screw and the driving gear rotate along with the output shaft of the motor, and the rotation of the driving gear drives the transmission gear rod to slide, so that the clamping assembly moves closer to clamp the outer ring of the bearing; then the electromagnetic fixing ring A is started to unlock the driving gear; the lead screw rotates to move the lead screw inner sleeve and the mounting frame downward, and when the mounting frame descends to the upper end of the outer ring of the bearing, the grinding table will rotate along with the lead screw inner sleeve, and since the grinding block cannot be raised or lowered, as the grinding table rotates, it drives the grinding block to slide outward, and the sliding of the grinding block makes its outer wall contact with the inner wall of the outer ring of the bearing; the grinding block will grind the inner wall of the outer ring of the bearing as the grinding table rotates; the controller The controller obtains the speed v of the motor according to the characteristics of the outer ring of the bearing, and then controls the motor to drive at the speed v; the controller senses the torque F exerted on the grinding roller through the torque sensor; then a two-dimensional coordinate system is constructed, with the horizontal axis being time and the vertical axis being force; then a torque curve is constructed using the grinding time t and its corresponding torque F, and then the current grinding fluctuation coefficient R is calculated, and it is determined whether the grinding fluctuation coefficient R is greater than a preset standard fluctuation coefficient R standard. If so, grinding continues; if not, the grinding is determined to be qualified and the grinding is terminated; after the grinding is completed, the motor is driven in the reverse direction, the grinding table rotates in the reverse direction, and the grinding block slides inward and disengages from the outer ring of the bearing; at this time, the electromagnetic fixing ring B is locked, and the screw rotates in the reverse direction to lift the mounting frame; the grinding roller is disengaged from the inner wall of the outer ring of the bearing, the electromagnetic fixing ring A locks the drive gear, and releases the outer ring of the bearing, and the controller controls the transmission drive member to drive the conveyor belt for transmission.

5. A bearing processing device according to claim 4, characterized in that: The grinding fluctuation coefficient Where N is the current time point, T is the evaluation time period, and F' is the grinding torque of the finished product of the current bearing outer ring type.

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