A high-precision turning device for bearing rings

Abstract

The present invention discloses a high-precision turning device for bearing rings, which relates to the technical field of bearing ring turning. It includes a workbench, a rotating disk is rotatably connected to the workbench, four force arms are hinged to the circumferential surface of the rotating disk along the radial direction, a three-jaw chuck is arranged on each force arm, a blanking opening is formed in the workbench, a reset inclined plane is arranged on one side of the workbench, and there are clamping positions, machining positions, unloading positions and reset positions on the rotation stroke of the force arm; it also includes: a fixed ring, the fixed ring is rotatably connected to the middle of the workbench, and the fixed ring includes a semi-circular gear ring and a separation section; a transmission part, which is arranged on the force arm, and the transmission part includes a gear. During the process of the force arm rotating from the clamping position to the machining position, the high-precision turning device for bearing rings provided by the present invention can automatically clamp and position the workpiece to facilitate machining, automatically loosen and unload the workpiece after machining, the machining equipment does not need to stop during the whole process, has good continuity and high machining efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing ring turning, and particularly to a high-precision bearing ring turning device. Background Art

[0002] A bearing is an important component in contemporary mechanical equipment. Its main function is to support the rotating body of the machine, reduce the friction coefficient during its movement, and ensure its rotational accuracy. As a core component of a mountain bike, the bearing is exposed to a complex outdoor environment for a long time. To ensure the sealing performance of the bearing, higher requirements are imposed on its processing accuracy. As is well known, a bearing ring has an inner ring and an outer ring, and rolling elements are arranged between the inner ring and the outer ring. During the production process, the process steps are: forging blank, rough turning, quenching, and finish machining.

[0003] As is well known, during the finish machining of the bearing ring, a CNC device is used to turn the allowance remaining after rough turning to make the accuracy of the bearing ring reach the required level. When the CNC device processes the workpiece, it is necessary to fix the bearing ring. Currently, there are two clamping methods. One is to set a three-jaw chuck at the workbench of the CNC device. After establishing the mechanical coordinate system, the bearing ring can be replaced after each processing by stopping the machine. This kind of fixture has extremely low cost, slow processing speed, and is mostly used for small-batch product trial production. The other is to make a specific tooling, usually by setting multiple uniformly arranged fixing positions on a fixing plate, establishing the workpiece coordinate system according to the fixing positions, and clamping the bearing rings at each fixing position. Without stopping the machine, several bearing rings can be processed at a time, and the efficiency is significantly improved. However, for both of the above two methods, in order to ensure safe production, it is necessary to stop the machine before manually disassembling and assembling the bearing ring, which will inevitably increase the downtime. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-precision bearing ring turning device to solve the deficiencies in the above-mentioned prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A high-precision bearing ring turning device, including a workbench, a rotating disk is rotatably connected to the workbench, four force arms are hinged to the circumferential surface of the rotating disk along the radial direction, a three-jaw chuck is arranged on each force arm, a blanking opening is formed on the workbench, a reset inclined surface is arranged on one side of the workbench, and there are a clamping position, a processing position, a discharging position, and a reset position on the rotation stroke of the force arm;

[0006] It further includes:

[0007] A fixed ring, the fixed ring is rotatably connected to the middle of the workbench, and the fixed ring includes a semi-circular gear ring and a separation section;

[0008] The transmission part is arranged on the force arm. The transmission part includes a gear. During the process of the force arm rotating from the clamping position to the processing position, the transmission part drives the three-jaw chuck to clamp through gear meshing. During the process of the force arm rotating from the processing position to the unloading position, the three-jaw chuck releases the clamp;

[0009] Wherein, after the three-jaw chuck clamps, the transmission part drives the fixed ring to move synchronously.

[0010] Preferably, the transmission part includes a transmission shaft, a fixed block, and a torsion spring. The fixed block is fixedly installed on the force arm. The transmission shaft is rotatably connected to the fixed block. One end of the transmission shaft is connected to the three-jaw chuck, and the other end of the transmission shaft is fixedly connected to the gear. The torsion spring is installed outside the transmission shaft.

[0011] Preferably, during the process of the force arm rotating from the clamping position to the processing position, the gear meshes with the semi-circular gear ring. During the process of the force arm rotating from the processing position to the unloading position, the gear is separated from the semi-circular gear ring.

[0012] Preferably, it includes a reset mechanism. The reset mechanism includes a circular track, a slider, a connecting block, and a spring. The connecting block is fixedly installed on the workbench. The circular track is fixedly installed on the connecting block. The slider is slidably sleeved on the circular track. One side of the slider is fixedly connected to the fixed ring. The spring is slidably sleeved outside the circular track.

[0013] Preferably, during the process of the force arm rotating from the processing position to the unloading position, when the force arm rotates to the blanking port, the workpiece is released.

[0014] Preferably, an inclined chute is provided at the reset inclined plane. A sliding trolley is slidably connected in the inclined chute. During the process of the force arm rotating from the reset position to the clamping position, the force arm is lapped on the sliding trolley.

[0015] Preferably, the sliding trolley is provided with balls, and a guiding plate is provided at the end of the reset inclined plane.

[0016] Preferably, it further includes a power unit. The power unit includes a first shaft rod, a driving wheel, and a motor. The first shaft rod is rotatably connected to the workbench. The driving wheel is fixedly installed on the first shaft rod. The driving wheel meshes with the rotating disc.

[0017] Preferably, it further includes a receiving hopper. The receiving hopper is arranged below the unloading position. A strip-shaped hole is provided on the receiving hopper. One end of the receiving hopper is provided with a guiding box. A limiting block is provided at the connection between the guiding box and the receiving hopper. A material leakage port is provided at the bottom of the guiding box. A rubber coating is provided on one side of the bottom of the guiding box.

[0018] Preferably, it further includes a cleaning part, and the cleaning part includes a second shaft rod, an outer sleeve, a rotating plate, a vibrating plate, a pin rod, an elastic part and a stress plate. The second shaft rod is rotatably connected below the material receiving hopper. The outer sleeve is fixedly installed on the second shaft rod. The rotating plate is fixedly installed on the outer sleeve. Helical teeth are provided on both the second shaft rod and the first shaft rod, and the two helical teeth are meshed with each other. One end of the pin rod is fixedly installed at the bottom of the material receiving hopper. The vibrating plate is slidably sleeved outside the pin rod. The elastic part is movably sleeved on the pin rod. The stress plate is arranged on the vibrating plate, and the stress plate extends to the rotation path of the rotating plate.

[0019] In the above technical solution, for a high-precision bearing ring turning device provided by the present invention, during the rotation stroke of the force arm, the workpiece can be automatically clamped and positioned to facilitate machining, automatically loosened and unloaded after machining is completed, and finally recycled to the clamping position to facilitate placing the next workpiece. The machining equipment does not need to stop during the whole process, has good continuity and high machining efficiency. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of a high-precision bearing ring turning device of the present invention;

[0022] Figure 2 It is an enlarged schematic diagram of part A in the attached Figure 1 drawing of a high-precision bearing ring turning device of the present invention;

[0023] Figure 3 It is an enlarged schematic diagram of part B in the attached Figure 1 drawing of a high-precision bearing ring turning device of the present invention;

[0024] Figure 4 It is the front view of a high-precision bearing ring turning device of the present invention;

[0025] Figure 5 It is a schematic diagram of the structures of the first shaft rod and the second shaft rod of a high-precision bearing ring turning device of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the sliding trolley of a high-precision bearing ring turning device of the present invention;

[0027] Figure 7Schematic diagram of the workbench and rotating disk structure of a high-precision bearing ring turning device of the present invention;

[0028] Figure 8 Schematic diagram of the cleaning part structure of a high-precision bearing ring turning device of the present invention.

[0029] Explanation of reference numerals:

[0030] 1. Workbench; 100. Concave surface; 101. Feeding port; 102. Reset inclined plane; 103. Inclined chute; 104. Sliding trolley; 105. Ball; 106. Guide plate; 2. Rotating disk; 3. Lever arm; 4. Transmission part; 41. Transmission shaft; 42. Fixed block; 43. Torsion spring; 44. Gear; 5. Three-jaw chuck; 6. Reset mechanism; 61. Circular track; 62. Slide block; 63. Connecting block; 64. Spring; 65. Protrusion; 66. Fixed ring; 661. Semi-circular gear ring; 662. Separation section; 7. Receiving hopper; 71. Strip-shaped hole; 72. Export box; 73. Limit block; 74. Leakage port; 75. Rubber coating; 8. First shaft rod; 81. Driving wheel; 82. Motor; 83. Helical tooth; 84. Second shaft rod; 9. Cleaning part; 91. Outer sleeve; 92. Rotating plate; 93. Vibration plate; 94. Pin rod; 95. Elastic part; 96. Stress plate. Detailed implementation manners

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] Please refer to Figure 1-8 , a high-precision bearing ring turning device provided by an embodiment of the present invention includes a workbench 1. The workbench 1 is rotatably connected with a rotating disk 2. Four lever arms 3 are hinged on the circumferential surface of the rotating disk 2 along the radial direction. Each lever arm 3 is provided with a three-jaw chuck 5. A feeding port 101 is opened on the workbench 1. A reset inclined plane 102 is arranged on one side of the workbench 1. The rotation stroke of the lever arm 3 has a clamping position, a machining position, a discharging position, and a reset position;

[0033] It further includes:

[0034] A fixed ring 66 is rotatably connected to the middle of the workbench 1. The fixed ring 66 includes a semi-circular gear ring 661 and a separation section 662;

[0035] A transmission part 4 is arranged on the lever arm 3. The transmission part 4 includes a gear 44. During the process of the lever arm 3 rotating from the clamping position to the machining position, the transmission part 4 drives the three-jaw chuck 5 to clamp through the meshing of the gear 44. During the process of the lever arm 3 rotating from the machining position to the discharging position, the three-jaw chuck 5 loosens the clamp;

[0036] Among them, after the three-jaw chuck 5 is clamped, the transmission part 4 drives the fixed ring 66 to move synchronously.

[0037] In an embodiment of the present invention, it includes a workbench 1, and the workbench 1 is rotatably connected with a rotating disk 2. The workbench 1 is stationary, while the rotating disk 2 can rotate relative to the workbench 1. Refer to Figure 7In it, a protruding ring is provided in the middle of the rotating disk 2, which ensures that the rotating disk 2 can only rotate relative to the workbench 1. Since it is a well-known technology and is not marked in the drawings, it will not be elaborated here. For the connection structure between the rotating disk 2 and the workbench 1, four force arms 3 are hinged along the radial direction on the circumferential surface of the rotating disk 2. The included angle between the four force arms 3 is 90 degrees, and each force arm 3 can be flipped independently. A three-jaw chuck 5 is provided on each force arm 3. The three-jaw chuck 5 is a prior art. It is rotated by inserting a handle into its input port. According to the different rotation directions, the locking or expansion of the three-jaw chuck 5 can be controlled. The working principle of the three-jaw chuck 5 belongs to the well-known technology and will not be elaborated here. A blanking port 101 is opened on the workbench 1, and the blanking port 101 is opened on the rotation path of the force arm 3. Since the workbench 1 can support the force arm 3, the force arm 3 can be ensured to be in a horizontal state. When the force arm 3 rotates to the blanking port 101, it loses the support of the workbench 1 and the force arm 3 will flip and turn to a vertical state. A reset inclined plane 102 is provided on one side of the workbench 1, and the reset inclined plane 102 is used to drive the force arm 3 to be lifted from the vertical state to the horizontal state. As the rotating disk 2 rotates, the force arm 3 will be gradually lifted from the vertical state to the horizontal state under the extrusion of the reset inclined plane 102. During use, it needs to be used in cooperation with a CNC device. The CNC device undertakes the cutting task. The CNC device establishes a workpiece coordinate system with the workpiece when it is in the processing position. There are clamping positions, processing positions, unloading positions, and reset positions on the rotation stroke of the force arm 3; it also includes: each force arm 3 sequentially passes through the clamping position, the processing position, the unloading position, and the reset position. When in the clamping position, the force arm 3 is in a horizontal state, and the three-jaw chuck 5 is in a loose clamping state. At this time, it is used for the placement of the workpiece, and the workpiece is placed between the three jaws of the three-jaw chuck 5. In the processing position, the force arm 3 is in a horizontal state, and the three-jaw chuck 5 is in a clamping state. The three-jaw chuck 5 clamps and positions the workpiece. At this time, the machining equipment can machine the workpiece. After the machining is completed, the force arm 3 continues to rotate. A concave surface 100 is provided on the workbench 1. When the force arm 3 moves to the concave surface 100, the concave surface 100 is lower than the tabletop. At this time, the force arm 3 flips under the action of gravity, causing the end of the force arm 3 to tilt up. When it rotates to the blanking port 101, it loses the support of the workbench 1 and the force arm 3 flips and turns into a vertical state, and the machined workpiece will also be separated. When it continues to rotate to the reset position, here, the force arm 3 will abut against the reset inclined plane 102. As the rotating disk 2 continues to rotate, the force arm 3 will be gradually lifted until it is completely lifted to the horizontal state. At this time, the force arm 3 returns to the support station again, and a workpiece machining can be completed. In this process, a fixed ring 66, the fixed ring 66 is rotatably connected to the middle of the workbench 1. The fixed ring 66 can only rotate relative to the workbench 1 and cannot be displaced in other ways. The fixed ring 66 includes a semi-circular gear ring 661 and a separation section 662, the semi-circular gear ring 661,The height in the vertical direction is higher than that of the separation section 662; the transmission part 4 is arranged on the lever arm 3. The transmission part 4 includes a gear 44. The transmission part 4 includes a transmission shaft 41, a fixed block 42, and a torsion spring 43. The fixed block 42 is fixedly installed on the lever arm 3. The fixed block 42 can rotate accordingly with the lever arm 3. The transmission shaft 41 is rotatably connected to the fixed block 42. The transmission shaft 41 can only rotate relative to the fixed block 42. One end of the transmission shaft 41 is connected to the three-jaw chuck 5. One end of the transmission shaft 41 is adapted to the input port of the three-jaw chuck 5. By inserting the transmission shaft 41 into the input port of the three-jaw chuck 5, when the transmission shaft 41 rotates accordingly, the clamping or loosening of the three-jaw chuck 5 can be realized, so that the clamping or loosening of the workpiece can be realized. The other end of the transmission shaft 41 is fixedly connected to the gear 44. The torsion spring 43 is installed outside the transmission shaft 41. The gear 44 and the transmission shaft 41 are fixedly connected. When the gear 44 rotates, the transmission shaft 41 must also rotate accordingly. During the process of the lever arm 3 rotating from the clamping position to the processing position, the transmission part 4 drives the three-jaw chuck 5 to clamp through the meshing of the gear 44. During the process of the lever arm 3 rotating from the clamping position to the processing position, it will drive the transmission shaft 41 to rotate around the workbench 1. In this way, the transmission shaft 41 moves synchronously, so that the gear 44 is connected to the semi-circular gear ring 661. The semi-circular gear ring 661 is arranged in a tooth structure, and the gear 44 can smoothly mesh with the semi-circular gear ring 661. Therefore, during the process of the gear 44 rotating around the workbench 1, due to the meshing action of the teeth, the gear 44 will synchronously perform a self-rotation. During the process of the gear 44 performing self-rotation, the transmission shaft 41 will rotate. In this way, the transmission shaft 41 rotates, so that the three-jaw chuck 5 tightens. During the rotation of the transmission shaft 41, the workpiece placed on the three-jaw chuck 5 can be clamped. During the process of the lever arm 3 rotating from the processing position to the unloading position, the three-jaw chuck 5 loosens. During the rotation of the transmission shaft 41, the torsion spring 43 is gradually twisted. When the lever arm 3 moves from the processing position to the unloading position, the gear 44 reaches the end of the semi-circular gear ring 661. In this way, the gear 44 is separated from the teeth. After separation, since the torsion spring 43 is in a twisted state and has a reset tendency, the torsion spring 43 will drive the transmission shaft 41 to perform a reverse self-rotation. In this way, the transmission shaft 41 will drive the three-jaw chuck 5 in the reverse direction to realize the automatic clamping and loosening of the three-jaw chuck 5. In this way, it is ensured that when the three-jaw chuck 5 moves to the unloading position, the workpiece can fall smoothly. During the rotation stroke of the lever arm 3, the workpiece can be automatically clamped and positioned for convenient machining, automatically loosened and unloaded after processing is completed, and finally recycled to the clamping position to facilitate the placement of the next workpiece. The machining equipment does not need to stop during the whole process, has good continuity, and high processing efficiency. After the three-jaw chuck 5 is clamped, the transmission part 4 drives the fixed ring 66 to move synchronously. It includes a reset mechanism 6. The reset mechanism 6 includes a circular track 61, a slider 62, a connecting block 63, and a spring 64. The connecting block 63 is fixedly installed on the workbench 1.The circular orbit 61 is fixedly installed on the connecting block 63. The slider 62 is slidably sleeved on the circular orbit 61. One side of the slider 62 is fixedly connected to the fixed ring 66. The spring 64 is slidably sleeved outside the circular orbit 61. The reset mechanism 6 applies a thrust to the fixed ring 66, so that the fixed ring 66 has a rotational tendency opposite to the rotation direction of the rotating disk 2. The rotating disk 2 rotates clockwise, while the reset mechanism 6 applies a thrust in the opposite direction to the fixed ring 66, so that the fixed ring 66 has a tendency to rotate counterclockwise. Since the sizes of the clamped workpieces are different, for some large-sized workpieces, the number of rotation circles of the transmission shaft 41 is less than that of the small-sized workpieces to clamp them. However, the angle between the clamping position and the machining position is fixed. Therefore, when the large workpiece has not reached the machining position, it has already been completely clamped. The continuous displacement of the force arm 3 will cause the deformation of the workpiece. The reset mechanism 6 includes a circular orbit 61, a slider 62, a connecting block 63 and a spring 64. The connecting block 63 is fixedly installed on the workbench 1. The circular orbit 61 is fixedly installed on the connecting block 63. The circular orbit 61 is fixed in the middle of the workbench 1 by the connecting block 63. The circular orbit 61 is concentric with the workbench 1. The slider 62 is slidably sleeved on the circular orbit 61. The slider 62 can be displaced along the circular orbit 61. One side of the slider 62 is fixedly connected to the fixed ring 66, and the slider 62 is also connected to the fixed ring 66. Therefore, when the fixed ring 66 is displaced, it can drive the slider 62 to be displaced synchronously. In this way, the position of the slider 62 on the circular orbit 61 will change accordingly. The spring 64 is slidably sleeved outside the circular orbit 61. One end of the spring 64 is connected to the slider 62 and the other end of the spring 64 is connected to the connecting block 63. In this way, the spring 64 is arranged between the slider 62 and the connecting block 63. The elastic force generated by the spring 64 will apply a thrust to the slider 62, so that the slider 62 has a tendency to move away from the connecting block 63. By the action of the elastic force of the spring 64, a thrust is applied to the slider 62, so that the slider 62 drives the fixed ring 66 to have a tendency to rotate counterclockwise. In this way, during the process of the force arm 3 moving from the clamping position to the machining position, the gear 44 will contact the fixed ring 66. The semi-circular tooth ring 661 is arranged in a tooth structure, and the gear 44 can smoothly mesh with the semi-circular tooth ring 661. As the force arm 3 continues to be displaced, under the action of the meshing force, the gear 44 will rotate correspondingly. During the rotation process, the transmission shaft 41 is synchronously driven to rotate to realize the clamping of the three-jaw chuck 5. During the continuous rotation process, after the workpiece is clamped, the gear 44 cannot continue to rotate by itself, and at this time, it is still in the position displacement process. Therefore, the gear 44 applies a thrust to the fixed ring 66, so that the fixed ring 66 resists the thrust from the spring 64. The fixed ring 66 has a tendency to rotate clockwise. A part of the fixed ring 66 drives the slider 62 to compress the spring 64, so that the spring 64 is compressed. The fixed ring 66 rotates clockwise. In this way, the continuous rotation of the gear 44 is avoided.It causes excessive squeezing force on the three-jaw chuck 5, resulting in workpiece deformation. In this way, it can be adapted to workpieces of different sizes and avoid workpiece deformation caused by excessive clamping force. Since the semi-circular gear ring 661 will move along with the movement under the push of the gear 44, when the force arm 3 moves from the machining position to the unloading position, the semi-circular gear ring 661 and the gear 44 cannot be separated smoothly. There is a concave surface 100 on the workbench 1. When the force arm 3 moves to the concave surface 100, the concave surface 100 is lower than the tabletop. At this time, the force arm 3 flips under the action of gravity, realizing the smooth separation of the semi-circular gear ring 661 and the gear 44.,

[0038] The transmission part 4 includes a transmission shaft 41, a fixed block 42, a torsion spring 43 and a gear 44. The fixed block 42 is fixedly installed on the force arm 3. The transmission shaft 41 is rotatably connected to the fixed block 42. One end of the transmission shaft 41 is connected to the three-jaw chuck 5, the other end of the transmission shaft 41 is fixedly connected to the gear 44, and the torsion spring 43 is installed outside the transmission shaft 41. In another embodiment of the present invention, the fixed block 42 is fixedly installed on the force arm 3, the transmission shaft 41 is rotatably connected to the fixed block 42, the axial direction of the transmission shaft 41 is the same as the length direction of the force arm 3, one end of the transmission shaft 41 is connected to the three-jaw chuck 5, a circular plate is provided at the end of the force arm 3, the three-jaw chuck 5 is detachably installed on the force arm 3, the other end of the transmission shaft 41 is fixedly connected to the gear 44, and the torsion spring 43 is installed outside the transmission shaft 41. One end of the torsion spring 43 is installed on the transmission shaft 41, and the other end of the torsion spring 43 is installed on the fixed block 42. In this way, when the transmission shaft 41 rotates, the torsion spring 43 will be distorted.,

[0039] During the process of the force arm 3 rotating from the clamping position to the machining position, the gear 44 and the semi-circular gear ring 661 are engaged. During the process of the force arm 3 rotating from the machining position to the unloading position, the gear 44 and the semi-circular gear ring 661 are separated. In another embodiment of the present invention, during the process of the force arm 3 rotating from the clamping position to the machining position, the gear 44 and the semi-circular gear ring 661 are engaged. During the process of the force arm 3 rotating from the machining position to the unloading position, the gear 44 and the semi-circular gear ring 661 are separated. The fixed ring 66 is set to be circular, and a semi-circular gear ring 661 and a separation section 662 are respectively arranged along the upper end surface of the fixed ring 66. During the rotation of the gear 44 along with the force arm 3, when the gear 44 moves to the semi-circular gear ring 661, since the semi-circular gear ring 661 is provided with teeth, the gear 44 will be engaged with the semi-circular gear ring 661. In this way, during the continuous displacement of the force arm 3, the gear 44 will rotate along the semi-circular gear ring 661, and only the semi-circular gear ring 661 exists from the clamping position to the machining position. Therefore, during this stroke, the gear 44 will drive the transmission shaft 41 to rotate to realize the clamping of the three-jaw chuck 5.,

[0040] The reset mechanism 6 includes a circular track 61, a slider 62, a connecting block 63 and a spring 64. The connecting block 63 is fixedly installed on the workbench 1, the circular track 61 is fixedly installed on the connecting block 63, the slider 62 is slidably sleeved on the circular track 61, one side of the slider 62 is fixedly connected to the fixed ring 66, and the spring 64 is slidably sleeved outside the circular track 61. In another embodiment of the present invention, a protrusion 65 is provided on the workbench 1, and the protrusion 65 is arranged on the movement path of the slider 62. Under the elastic force of the spring 64, the slider 62 will be driven to rotate counterclockwise. However, due to the limitation of the protrusion 65, the slider 62 cannot rotate counterclockwise, so as to ensure that the initial contact position between the fixed ring 66 and the gear 44 remains the same without other external forces.

[0041] During the process of the force arm 3 rotating from the processing position to the unloading position, when the force arm 3 rotates to the blanking port 101, the force arm 3 will flip into a vertical state and release the workpiece. In another embodiment of the present invention, at the blanking port 101, the force arm 3 loses the support of the workbench 1, and the force arm 3 will naturally flip into a vertical state. Similarly, the workpiece on the three-jaw chuck 5 will also fall.

[0042] An inclined chute 103 is provided at the reset inclined plane 102, and a sliding trolley 104 is slidably connected in the inclined chute 103. During the process of the force arm 3 rotating from the reset position to the clamping position, the force arm 3 is lapped on the sliding trolley 104. The sliding trolley 104 is provided with a ball 105, and a guide plate 106 is provided at the end of the reset inclined plane 102. An inclined chute 103 is provided on the reset inclined plane 102, and the height of the inclined chute 103 gradually increases in the rotation direction of the force arm 3. The sliding trolley 104 stays at the lowest part of the inclined chute 103, and the guide plate 106 is inclined towards the center of the workbench 1. Thus, when the force arm 3 reaches the reset position, the guide plate 106 is located on the back of the force arm 3. As the rotating disk 2 continues to rotate, the force arm 3 gradually transitions to the reset inclined plane 102 along the guide plate 106, and the sliding trolley 104 supports the force arm 3. As the force arm 3 moves, the sliding trolley 104 also displaces along the inclined chute 103. In this way, during the lifting process of the force arm 3, through the setting of the sliding trolley 104, the friction between the force arm 3 and the reset inclined plane 102 is reduced, making the reset of the force arm 3 easier. After the force arm 3 is separated from the sliding trolley 104, the sliding trolley 104 returns to the lowest part of the inclined chute 103 under the action of gravity.

[0043] It further includes a power unit, which includes a first shaft 8, a driving wheel 81, and a motor 82. The first shaft 8 is rotatably connected to the workbench 1, the driving wheel 81 is fixedly installed on the first shaft 8, and the driving wheel 81 meshes with the rotating disc 2. The rotation of the motor 82 can drive the first shaft 8 to rotate. When the first shaft 8 rotates, it will drive the driving wheel 81 to rotate. Since the driving wheel 81 meshes with the inner wall of the rotating disc 2, when the driving wheel 81 rotates, it can smoothly drive the rotating disc 2 to rotate, thereby driving the displacement of the power arm 3.

[0044] It further includes a receiving hopper 7, which is arranged below the discharging position. A strip-shaped hole 71 is formed in the receiving hopper 7. One end of the receiving hopper 7 is provided with a guiding box 72. A limiting block 73 is arranged at the connection between the guiding box 72 and the receiving hopper 7. A material leakage opening 74 is formed at the bottom of the guiding box 72, and a rubber coating 75 is arranged on one side of the bottom of the guiding box 72. In another embodiment of the present invention, the receiving hopper 7 is used to receive workpieces. The workpieces falling at the discharging position will enter the receiving hopper 7. Among them, the chips generated by machining will be discharged through the strip-shaped hole 71. The bottom surface of the receiving hopper 7 is set as an inclined surface, and the workpieces will move towards the guiding box 72. Due to the arrangement of the limiting block 73, the workpieces must face downwards to smoothly pass through the limiting block 73 and enter the guiding box 72. A large-area material leakage opening 74 is formed in the middle of the guiding box 72 to further reduce chip residue. By arranging a rubber coating 75 on one side of the guiding box 72, when the workpieces move along the guiding box 72, due to the large unilateral friction force, certain rotation will occur during the downward movement. In this way, the chips generated at the contact positions between the workpieces and the two sides of the guiding box 72 will flip towards the material leakage opening 74, further reducing chip residue.

[0045] The cleaning unit 9 includes a second shaft rod 84, an outer sleeve 91, a rotating plate 92, a vibrating plate 93, a pin rod 94, an elastic member 95 and a force-bearing plate 96. The second shaft rod 84 is rotatably connected below the material receiving hopper 7. The outer sleeve 91 is fixedly installed on the second shaft rod 84. The rotating plate 92 is fixedly installed on the outer sleeve 91. Helical gears 83 are provided on both the second shaft rod 84 and the first shaft rod 8, and a pair of helical gears 83 mesh with each other. One end of the pin rod 94 is fixedly installed at the bottom of the material receiving hopper 7. The vibrating plate 93 is slidably sleeved outside the pin rod 94. The elastic member 95 is movably sleeved on the pin rod 94. The force-bearing plate 96 is provided on the vibrating plate 93, and the force-bearing plate 96 extends to the rotation path of the rotating plate 92. In another embodiment of the present invention, the second shaft rod 84 is rotatably connected below the material receiving hopper 7. The second shaft rod 84 can only rotate and cannot displace in other ways. The outer sleeve 91 is fixedly installed on the second shaft rod 84. When the second shaft rod 84 rotates, it can drive the outer sleeve 91 to rotate correspondingly. The rotating plate 92 is fixedly installed on the outer sleeve 91. When the outer sleeve 91 rotates, the rotating plate 92 will rotate around the second shaft rod 84 as the center. Helical gears 83 are provided on both the second shaft rod 84 and the first shaft rod 8, and a pair of helical gears 83 mesh with each other. While the first shaft rod 8 drives the rotating disk 2 to rotate, due to the transmission of the helical gears 83, the second shaft rod 84 will synchronously rotate correspondingly. One end of the pin rod 94 is fixedly installed at the bottom of the material receiving hopper 7. The pin rod 94 is arranged in a T shape. The vibrating plate 93 is slidably sleeved outside the pin rod 94. The elastic member 95 is movably sleeved on the pin rod 94. By respectively abutting the two ends of the elastic member 95 against the end of the pin rod 94 and the vibrating plate 93, through the extrusion of the elastic member 95, the vibrating plate 93 is attached to the bottom surface of the material receiving hopper 7. The force-bearing plate 96 is provided on the vibrating plate 93, and the force-bearing plate 96 extends to the rotation path of the rotating plate 92. When the rotating plate 92 rotates, a thrust will be applied to the force-bearing plate 96. The force-bearing plate 96 will drive the vibrating plate 93 to displace against the elastic force of the elastic member 95. The vibrating plate 93 will separate from the material receiving hopper 7. After the rotating plate 92 continuously moves to the limit position, the rotating plate 92 and the force-bearing plate 96 are separated. In this way, under the elastic force of the elastic member 95, the vibrating plate 93 impacts the material receiving hopper 7, and the generated vibration is transmitted to the material receiving hopper 7. This helps the workpiece to displace in the material receiving hopper 7 and helps the debris to be discharged from the material receiving hopper 7, having a good cleaning effect.

[0046] Only some exemplary embodiments of the present invention have been described by way of illustration above. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A high-precision bearing ring turning device, comprising a workbench (1), the workbench (1) is rotationally connected with a rotating disk (2), four force arms (3) are hinged to the circumferential surface of the rotating disk (2) along the radial direction, a three-jaw chuck (5) is arranged on each force arm (3), a blanking port (101) is formed in the workbench (1), and a reset inclined plane (102) is arranged on one side of the workbench (1), characterized in that, It has a clamping position, a machining position, a discharging position and a reset position on the rotation stroke of the lever arm (3); It further includes: A fixed ring (66), the fixed ring (66) is rotatably connected to the middle of the workbench (1), and the fixed ring (66) includes a semi-circular gear ring (661) and a separation section (662); A transmission part (4), which is arranged on the lever arm (3), the transmission part (4) includes a gear (44), and during the rotation of the lever arm (3) from the clamping position to the machining position, the transmission part (4) drives the three-jaw chuck (5) to clamp through the gear (44), and during the rotation of the lever arm (3) from the machining position to the discharging position, the three-jaw chuck (5) is loosened; Wherein, after the three-jaw chuck (5) is clamped, the transmission part (4) drives the fixed ring (66) to move synchronously; The transmission part (4) includes a transmission shaft (41), a fixed block (42), and a torsion spring (43), the fixed block (42) is fixedly installed on the lever arm (3), the transmission shaft (41) is rotatably connected to the fixed block (42), one end of the transmission shaft (41) is connected to the three-jaw chuck (5), the other end of the transmission shaft (41) is fixedly connected to the gear (44), and the torsion spring (43) is installed outside the transmission shaft (41); During the rotation of the lever arm (3) from the clamping position to the machining position, the gear (44) meshes with the semi-circular gear ring (661), and during the rotation of the lever arm (3) from the machining position to the discharging position, the gear (44) is separated from the semi-circular gear ring (661); It includes a reset mechanism (6), the reset mechanism (6) includes a circular track (61), a slider (62), a connecting block (63) and a spring (64), the connecting block (63) is fixedly installed on the workbench (1), the circular track (61) is fixedly installed on the connecting block (63), the slider (62) is slidably sleeved on the circular track (61), one side of the slider (62) is fixedly connected to the fixed ring (66), and the spring (64) is slidably sleeved outside the circular track (61).

2. The high-precision bearing ring turning device according to claim 1, wherein During the rotation of the lever arm (3) from the machining position to the discharging position, when the lever arm (3) rotates to the blanking port (101), the lever arm (3) will be flipped from a horizontal state to a vertical state and release the workpiece.

3. A high-precision bearing ring turning device according to claim 2, characterized in that An inclined chute (103) is provided at the reset inclined plane (102), and a sliding trolley (104) is slidably connected in the inclined chute (103). During the rotation of the lever arm (3) from the reset position to the clamping position, the lever arm (3) is lapped on the sliding trolley (104).

4. A high-precision bearing ring turning device according to claim 3, characterized in that, The sliding trolley (104) is provided with balls (105), and a guide plate (106) is provided at the end of the reset inclined plane (102).

5. The high-precision bearing ring turning device according to claim 1, characterized in that, It further includes a power unit, and the power unit includes a first shaft rod (8), a driving wheel (81), and a motor (82). The first shaft rod (8) is rotatably connected to the workbench (1), the driving wheel (81) is fixedly installed on the first shaft rod (8), and the driving wheel (81) meshes with the rotating disk (2).

6. The high-precision bearing ring turning device according to claim 5, characterized in that, It further includes a material receiving hopper (7). The material receiving hopper (7) is arranged below the discharging position. A strip-shaped hole (71) is formed in the material receiving hopper (7). One end of the material receiving hopper (7) is provided with a guiding box (72). A limiting block (73) is arranged at the connection between the guiding box (72) and the material receiving hopper (7). A material leakage port (74) is formed at the bottom of the guiding box (72). A rubber coating (75) is arranged on one side of the bottom of the guiding box (72).

7. The high-precision bearing ring turning device according to claim 6, characterized in that, It further includes a cleaning part (9). The cleaning part (9) includes a second shaft rod (84), an outer sleeve (91), a rotating plate (92), a vibrating plate (93), a pin rod (94), an elastic member (95), and a stress plate (96). The second shaft rod (84) is rotatably connected below the material receiving hopper (7). The outer sleeve (91) is fixedly installed on the second shaft rod (84). The rotating plate (92) is fixedly installed on the outer sleeve (91). Helical teeth (83) are arranged on both the second shaft rod (84) and the first shaft rod (8), and the two helical teeth (83) mesh with each other. One end of the pin rod (94) is fixedly installed at the bottom of the material receiving hopper (7). The vibrating plate (93) is slidably sleeved outside the pin rod (94). The elastic member (95) is movably sleeved on the pin rod (94). The stress plate (96) is arranged on the vibrating plate (93), and the stress plate (96) extends to the rotation path of the rotating plate (92).

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