Bearing dressing grinding machine
By designing a bearing repair grinder including a workbench, mounting plate and flexible clamping mechanism, the problem that traditional grinder fixture design cannot adapt to bearings of different sizes is solved, achieving higher applicability and machining accuracy.
Patent Information
- Application Number
- CN202422402630.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The fixture design of traditional bearing finishing grinders cannot be suitable for bearings of different sizes or types, resulting in insufficient flexibility of the grinder and uneven clamping force distribution, which affects processing quality and accuracy.
A bearing finishing grinding machine is designed including a workbench, a mounting plate and a clamping mechanism. The clamping mechanism consists of a clamping block, a screw, a slider, a connecting rod and a connecting block. Through the cooperation of the internal threaded ring and a screw, flexible clamping of bearings of different sizes can be achieved.
This design improves the applicability and flexibility of bearing repair and grinding machines, ensures the stability and reliability of bearings during grinding, can effectively adapt to the clamping needs of bearings of different sizes, and improves processing quality and accuracy.
Smart Images
Figure CN223012672U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearing production, in particular to a bearing trimming grinder. Background Technique
[0002] A bearing is an important component in the machinery industry and is widely used in almost all mechanical equipment. Its main functions are to support rotating components, reduce friction during movement, and maintain the relative position of rotation and the shaft. In bearing production, the surface quality of the bearing directly affects its friction performance and service life. The surface of the bearing can be trimmed by a grinder to remove surface defects and non-uniformities, and extend the service life of the bearing;
[0003] The traditional bearing trimming grinder realizes the clamping of the bearing by using a special fixture or clamping jaw. The fixture design is made according to the size and shape of the bearing to ensure that the grinding force will not cause the bearing to deform;
[0004] The traditional bearing trimming grinder has the following problems: The special fixture or clamping jaw may not be applicable to other sizes or types of bearings, which limits the flexibility of the grinder. Moreover, the design of the special fixture or clamping jaw results in non-uniform or unstable clamping, and it is easy to occur that the clamping force is unevenly distributed on the bearing surface, affecting the processing quality and accuracy. For this reason, we propose a bearing trimming grinder. Content of the Utility Model
[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a bearing trimming grinder that can flexibly adapt to the clamping requirements of bearings of different sizes, improve the applicability and flexibility of the trimming work, and can effectively solve the problems in the background technique.
[0006] To achieve the above object, the utility model provides the following technical solution: A bearing trimming grinder, including a workbench and a mounting plate;
[0007] Workbench: A guiding chute is opened in the middle of its upper surface. The left and right ends of the inner wall of the guiding chute are respectively slidably connected with vertical plates. The inner sides of the two vertical plates are respectively rotatably connected with grinding discs through rotating shafts;
[0008] Mounting plate: It is fixedly connected to the rear end of the upper surface of the workbench. A clamping mechanism is arranged on the front side of the mounting plate, and the rear end of the clamping mechanism extends to the outside of the rear side of the mounting plate, ensuring the stability and reliability of the bearing during the grinding process, and being able to flexibly adapt to the clamping requirements of bearings of different sizes, improving the applicability and flexibility of the trimming work.
[0009] Furthermore, it further includes a single-chip microcomputer. The single-chip microcomputer is arranged on the front side of the workbench, and the input end of the single-chip microcomputer is electrically connected to an external power supply, facilitating the control of the operation of each electrical appliance.
[0010] Further, it further includes a first motor, and the first motors are respectively installed on the outer sides of the two vertical plates facing away from each other through bolts. The output shafts of the first motors are fixedly connected to the outer ends of the adjacent rotating shafts, and the input ends of the first motors are electrically connected to the output shafts of the single-chip microcomputer to drive the grinding disc to rotate.
[0011] Further, it further includes electric push rods, and the electric push rods are respectively arranged in the installation grooves at the left and right ends of the workbench. The telescopic ends of the electric push rods are fixedly connected to the outer sides of the adjacent vertical plates, and the input ends of the electric push rods are electrically connected to the output shafts of the single-chip microcomputer to adjust the positions of the vertical plates.
[0012] Further, the clamping mechanism includes clamping blocks, a first connecting block, connecting rods, a second connecting block, a screw rod, and a sliding cylinder. The screw rod is rotatably connected to the middle of the mounting plate, and the outer surface of the screw rod is slidably connected with the sliding cylinder. The outer surface of the sliding cylinder is fixedly connected with evenly distributed second connecting blocks. The front and rear ends of the second connecting blocks are respectively rotatably connected with connecting rods through pins. One end of the connecting rod far from the center of the screw rod is rotatably connected with the front and rear ends of the adjacent first connecting block through pins. One end of the first connecting block far from the center of the screw rod is fixedly connected with a clamping block, which contacts the inner ring of the bearing.
[0013] Further, the clamping mechanism further includes a chute and a fixing plate. The fixing plate is fixedly sleeved on the middle of the screw rod, and evenly distributed chutes are formed on the front side surface of the fixing plate. The inner walls of the chutes are slidably connected with the rear ends of the longitudinally adjacent clamping blocks to achieve sliding avoidance.
[0014] Further, the clamping mechanism further includes an internal thread ring and a rotating groove. The rotating groove is formed on the front side surface of the sliding cylinder, and the inner wall of the rotating groove is rotatably connected with the internal thread ring through a bearing. The inner wall of the internal thread ring is threadedly connected with the outer surface of the screw rod to apply appropriate extrusion force.
[0015] Further, the clamping mechanism further includes a second motor. The second motor is installed on the rear side surface of the mounting plate through bolts. The front end of the output shaft of the second motor is fixedly connected to the rear end of the screw rod, and the input end of the second motor is electrically connected to the output end of the single-chip microcomputer to drive the clamping mechanism to rotate.
[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: This bearing trimming grinder has the following advantages:
[0017] Put the bearing to be trimmed on the outer surface of the clamping block, and then rotate the internal thread ring to connect through the external thread on the screw rod, which enables the internal thread ring to move along the axis direction of the screw rod. During the movement, it is connected to the rotating groove on the front side of the sliding cylinder through the bearing, thereby driving the sliding cylinder to slide backward along the outer surface of the screw rod. During this process, the connecting rods at the front and rear ends of the second connecting block rotate around the pin shaft at the connection between them, enabling the connecting rods to rotate around the pin shaft during the movement. The first connecting block is connected to the second connecting block through the connecting rod. When the second connecting block drives the connecting rod to rotate, it also drives the first connecting block and the pin shaft of the connecting rod adjacent to the clamping block to rotate, thereby enabling the clamping block to slide and avoid in the sliding groove. Finally, through the sliding and avoidance of the clamping block, the clamping block can contact the inner ring of the bearing, thereby fixing the position of the bearing. For bearings of different sizes, by appropriately rotating the internal thread ring, the position and direction of the clamping block are adjusted, so that the clamping block contacts the inner ring of the bearing and applies an appropriate extrusion force, thus ensuring the stability and reliability of the bearing during the grinding process, and being able to flexibly adapt to the clamping requirements of bearings of different sizes, improving the applicability and flexibility of the bearing trimming work. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a schematic structural diagram of the present utility model;
[0019] Figure 2 is a schematic structural diagram of the right side cross-section of the present utility model;
[0020] Figure 3 is a schematic enlarged structural diagram at A of the present utility model.
[0021] In the figure: 1 single-chip microcomputer, 2 guiding sliding groove, 3 workbench, 4 electric push rod, 5 motor 1, 6 grinding disc, 7 vertical plate, 8 clamping mechanism, 801 clamping block, 802 first connecting block, 803 connecting rod, 804 second connecting block, 805 internal thread ring, 806 screw rod, 807 rotating groove, 808 sliding cylinder, 809 sliding groove, 810 fixing plate, 811 motor 2, 9 mounting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0023] Please refer to Figures 1-3 , this embodiment provides a technical solution: a bearing trimming grinder, including a workbench 3 and a mounting plate 9;
[0024] Workbench 3: A guiding chute 2 is provided in the middle of its upper surface. The left and right ends of the inner wall of the guiding chute 2 are respectively slidably connected with vertical plates 7. The inner sides of the two vertical plates 7 are respectively rotatably connected with grinding discs 6 through rotating shafts. It further includes a first motor 5, and the first motor 5 is installed on the outer sides of the two vertical plates 7 facing away from each other through bolts. The output shafts of the first motor 5 are respectively fixedly connected with the outer ends of the adjacent rotating shafts. The input ends of the first motor 5 are electrically connected to the output shaft of the single-chip microcomputer 1. It further includes a single-chip microcomputer 1, and the single-chip microcomputer 1 is arranged on the front side of the workbench 3. The input end of the single-chip microcomputer 1 is electrically connected to an external power supply. It further includes electric push rods 4, and the electric push rods 4 are respectively arranged in the installation grooves at the left and right ends of the workbench 3. The telescopic ends of the electric push rods 4 are respectively fixedly connected with the outer sides of the adjacent vertical plates 7. The input ends of the electric push rods 4 are electrically connected to the output shaft of the single-chip microcomputer 1. At the same time, the operation of the electric push rods 4 is regulated by the single-chip microcomputer 1. The telescopic ends of the electric push rods 4 drive the vertical plates 7 to move to appropriate positions through the guiding chute 2 to adjust the positions of the vertical plates 7. Then, the operation of the first motor 5 is regulated by the single-chip microcomputer 1. The output shafts of the first motor 5 drive the rotating shafts to rotate. The rotation of the rotating shafts will drive the grinding discs 6 to rotate together. Finally, through the rotation of the rotating shafts driving the grinding discs 6, the grinding discs 6 on the left and right sides process the bearings to remove the surface unevenness or damage, improving the quality and performance of the bearings;
[0025] Mounting plate 9: It is fixedly connected to the rear end of the upper surface of the workbench 3. A clamping mechanism 8 is provided on the front side of the mounting plate 9. The rear end of the clamping mechanism 8 extends to the outside of the rear side of the mounting plate 9. The clamping mechanism 8 includes clamping blocks 801, connecting block one 802, connecting rods 803, connecting block two 804, screw 806 and sliding cylinder 808. The screw 806 is rotatably connected to the middle of the mounting plate 9. The outer surface of the screw 806 is slidably connected with the sliding cylinder 808. The outer surface of the sliding cylinder 808 is fixedly connected with evenly distributed connecting block two 804. The front and rear ends of the connecting block two 804 are rotatably connected with the connecting rods 803 through pins. One end of the connecting rod 803 far from the center of the screw 806 is rotatably connected with the front and rear ends of the adjacent connecting block one 802 through pins. One end of the connecting block one 802 far from the center of the screw 806 is fixedly connected with the clamping block 801. The clamping mechanism 8 further includes a chute 809 and a fixing plate 810. The fixing plate 810 is fixedly sleeved on the middle of the screw 806. The front side of the fixing plate 810 is provided with evenly distributed chutes 809. The inner walls of the chutes 809 are slidably connected with the rear ends of the longitudinally adjacent clamping blocks 801. The clamping mechanism 8 further includes an internal thread ring 805 and a rotating groove 807. The rotating groove 807 is opened on the front side of the sliding cylinder 808. The inner wall of the rotating groove 807 is rotatably connected with the internal thread ring 805 through a bearing. The inner wall of the internal thread ring 805 is threadedly connected with the outer surface of the screw 806. The clamping mechanism 8 further includes a motor two 811. The motor two 811 is installed on the rear side of the mounting plate 9 through bolts. The front end of the output shaft of the motor two 811 is fixedly connected with the rear end of the screw 806. The input end of the motor two 811 is electrically connected to the output end of the single-chip microcomputer 1. First, put the bearing to be trimmed on the outer surface of the clamping block 801. Then rotate the internal thread ring 805 through the external thread connection on the screw 806, which enables the internal thread ring 805 to move along the axis direction of the screw 806. When moving, it is connected to the rotating groove 807 on the front side of the sliding cylinder 808 through a bearing, thereby driving the sliding cylinder 808 to slide backward along the outer surface of the screw 806. In the process, the connecting rods 803 at the front and rear ends of the connecting block two 804 rotate around the pins at the connection points between them, so that the connecting rods 803 can rotate around the pins during the movement. The connecting block one 802 is connected to the connecting block two through the connecting rod 803. When the connecting block two 804 drives the connecting rod to rotate, it also drives the connecting block one 802 and the connecting rod 803 adjacent to the clamping block 801 to rotate around the pins, thereby enabling the clamping block 801 to slide and avoid in the chute 809. Finally, through the sliding and avoidance of the clamping block 801, the clamping block 801 can contact the inner ring of the bearing, thereby fixing the position of the bearing. For bearings of different sizes, by appropriately rotating the internal thread ring 805, the position and direction of the clamping block 801 are adjusted, so that the clamping block 801 contacts the inner ring of the bearing and applies an appropriate extrusion force. After the fixing is completed, before trimming, the single-chip microcomputer 1 controls the operation of the motor two 811. The output shaft of the motor two 811 drives the screw 806 to rotate.The rotation of the screw 806 is transmitted to the bearing fixed on the clamping mechanism 8, causing the bearing to rotate accordingly.
[0026] The working principle of a bearing trimming grinder provided by the present utility model is as follows: First, the bearing to be trimmed is sleeved on the outer surface of the clamping block 801, and then the inner threaded ring 805 is rotated to be connected through the external thread on the screw 806, which enables the inner threaded ring 805 to move along the axis direction of the screw 806. During the movement, the bearing is connected to the rotating groove 807 on the front side of the sliding cylinder 808, thereby driving the sliding cylinder 808 to slide backward along the outer surface of the screw 806. During this process, the connecting rods 803 at the front and rear ends of the second connecting block 804 rotate around the pin shaft at the connection between them, enabling the connecting rods 803 to rotate around the pin shaft during the movement. The first connecting block 802 is connected to the second connecting block through the connecting rod 803. When the second connecting block 804 drives the connecting rod to rotate, it also drives the first connecting block 802 and the pin shaft of the connecting rod 803 adjacent to the clamping block 801 to rotate, thereby enabling the clamping block 801 to slide and avoid in the sliding groove 809. Finally, through the sliding and avoidance of the clamping block 801, the clamping block 801 can contact the inner ring of the bearing, thereby fixing the position of the bearing. For bearings of different sizes, by appropriately rotating the inner threaded ring 805, the position and direction of the clamping block 801 are adjusted, so that the clamping block 801 contacts the inner ring of the bearing and applies an appropriate extrusion force. After the fixation is completed and before trimming, the operation of the second motor 811 is controlled by the single-chip microcomputer 1. The output shaft of the second motor 811 drives the screw 806 to rotate, and the rotation of the screw 806 is transmitted to the bearing fixed on the clamping mechanism 8, causing the bearing to rotate accordingly. At the same time, the operation of the electric push rod 4 is controlled by the single-chip microcomputer 1. The telescopic end of the electric push rod 4 drives the vertical plate 7 to move to a suitable position through the guiding sliding groove 2 to adjust the position of the vertical plate 7. Then, the operation of the first motor 5 is controlled by the single-chip microcomputer 1. The output shaft of the first motor 5 drives the rotating shaft to rotate, and the rotation of the rotating shaft drives the grinding disc 6 to rotate together. Finally, through the rotation of the rotating shaft driving the grinding disc 6, the grinding discs 6 on both left and right sides process the bearing to remove the surface unevenness or damage, improving the quality and performance of the bearing.
[0027] It should be noted that the specific model of the single-chip microcomputer 1 disclosed in the above embodiments is S7-200. It is recommended to select the SM-38STG-1000N for the electric push rod 4, the D180M-0160030B-E can be selected for the first motor 5, and the YEJ20.55KW-4P can be selected for the second motor 811. The single-chip microcomputer 1 controls the operation of the electric push rod 4, the first motor 5, and the second motor 811 by using the commonly used methods in the prior art.
[0028] The above are only embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present utility model.
Claims
1. A bearing dressing and grinding machine, characterized in that: It comprises a workbench (3) and a mounting plate (9); A workbench (3): a guide groove (2) is provided in the middle of its upper surface, and vertical plates (7) are slidably connected to the left and right ends of the inner wall of the guide groove (2), and the inner sides of the two vertical plates (7) are rotatably connected to the grinding discs (6) via rotating shafts; A mounting plate (9) is fixedly connected to the rear end of the upper surface of the workbench (3); a clamping mechanism (8) is provided on the front side of the mounting plate (9); and a rear end of the clamping mechanism (8) extends to the outside of the rear side of the mounting plate (9); It also comprises a single-chip microcomputer (1), wherein the single-chip microcomputer (1) is arranged on the front side of the workbench (3), and an input end of the single-chip microcomputer (1) is electrically connected to an external power supply; The clamping mechanism (8) comprises a clamping block (801), a connecting block 1 (802), a connecting rod (803), a connecting block 2 (804), a screw (806) and a slide cylinder (808), wherein the screw (806) is rotatably connected to the middle part of the mounting plate (9), the outer surface of the screw (806) is slidably connected to the slide cylinder (808), the outer surface of the slide cylinder (808) is fixedly connected to the evenly distributed connecting block 2 (804), the front and rear ends of the connecting block 2 (804) are rotatably connected to the connecting rod (803) via a pin, the end of the connecting rod (803) away from the center of the screw (806) is rotatably connected to the front and rear ends of the adjacent connecting block 1 (802) via a pin, and the end of the connecting block 1 (802) away from the center of the screw (806) is fixedly connected to the clamping block (801); The clamping mechanism (8) further comprises a slide groove (809) and a fixed plate (810), wherein the fixed plate (810) is fixedly sleeved on the middle part of the screw rod (806), and the front side surface of the fixed plate (810) is provided with evenly distributed slide grooves (809), and the inner walls of the slide grooves (809) are slidably connected to the rear ends of the longitudinally adjacent clamping blocks (801); The clamping mechanism (8) further comprises an internal thread ring (805) and a rotation groove (807), wherein the rotation groove (807) is provided on the front side of the slide cylinder (808), the inner wall of the rotation groove (807) is rotatably connected to the internal thread ring (805) via a bearing, and the inner wall of the internal thread ring (805) is threadedly connected to the outer surface of the screw rod (806); The clamping mechanism (8) further comprises a second motor (811), wherein the second motor (811) is mounted on the rear side of the mounting plate (9) by means of bolts, the front end of the output shaft of the second motor (811) is fixedly connected to the rear end of the screw rod (806), and the input end of the second motor (811) is electrically connected to the output end of the single chip computer (1).
2. A bearing dressing and grinding machine according to claim 1, characterized in that: It also includes a motor 1 (5), which is mounted on the opposite outer sides of the two vertical plates (7) by bolts, the output shaft of the motor 1 (5) is fixedly connected to the outer end of the adjacent rotating shaft, and the input end of the motor 1 (5) is electrically connected to the output shaft of the single-chip computer (1).
3. A bearing dressing and grinding machine according to claim 1, characterized in that: It also includes an electric push rod (4), which is respectively arranged in the installation grooves at the left and right ends of the workbench (3), the telescopic ends of the electric push rod (4) are fixedly connected to the outer side surface of the adjacent vertical plate (7), and the input ends of the electric push rod (4) are electrically connected to the output shaft of the single-chip computer (1).