Bearing inner ring stop mechanism

Abstract

The utility model discloses a bearing inner race stop mechanism belongs to bearing processing auxiliary equipment technical field, including horizontal movement subassembly, vertical rotation subassembly, work piece placing seat, stop unit and press control unit, vertical rotation subassembly lower end connection horizontal movement subassembly, upper end connection work piece placing seat, stop unit to be located at work piece placing seat top, including pressing plate and elastic reset component, and the pressing plate is pressed tightly bearing inner race through the elastic tension, realizes bearing inner race and work piece placing seat synchronous rotation, and press control unit is used for driving pressing plate to lift to complete work piece feeding and discharging. The mechanism is further provided with a rotation detection module, which can monitor the rotation state and operate in linkage control. The utility model stop stable and reliable, effectively avoid the relative deflection of bearing inner race processing, improve the processing precision and uniformity of the process such as point gum, and the work station is adjustable, the degree of automation is high, and is suitable for batch bearing processing production.

Description

Technical Field

[0001] This utility model relates to the field of bearing processing auxiliary equipment technology, and in particular to a bearing inner ring anti-rotation mechanism. Background Technology

[0002] In bearing assembly and subsequent finishing processes, it is often necessary to perform operations such as applying adhesive, coating a lubricating layer, or trimming the inner wall of the center hole of the bearing inner ring. The inherent structure of the bearing determines that its inner and outer rings can achieve circumferential relative free rotation through rolling elements. When performing the above-mentioned processing on the bearing inner ring, if the inner ring is not circumferentially anti-rotation and limited, the processing force can easily cause the inner ring to deflect circumferentially, resulting in problems such as adhesive application position deviation, uneven coating thickness, and processing dimensional deviations, which directly affect the processing accuracy and assembly quality of the product.

[0003] Currently, in similar processing procedures, the inner ring is often limited by manual hand-held tooling or simple clamping. This method is cumbersome, has low production efficiency, and poor anti-rotation stability. It is difficult to adapt to the continuous operation requirements of automated processing production lines and cannot meet the requirements of large-volume, high-precision bearing processing. Utility Model Content

[0004] The purpose of this utility model is to provide a bearing inner ring anti-rotation mechanism to solve the problems of relative rotation between the inner ring and outer ring during the bearing inner ring processing, resulting in poor processing quality and low operating efficiency. At the same time, it has the characteristics of adjustable work position, high degree of automation, and stable and reliable anti-rotation.

[0005] To achieve the above objectives, this utility model provides a bearing inner ring anti-rotation mechanism, including a horizontal moving component, a vertical rotating component, and a workpiece placement seat. The lower end of the vertical rotating component is connected to the horizontal moving component, and the workpiece placement seat is disposed at the upper end of the vertical rotating component. The top end of the workpiece placement seat is provided with an anti-rotation unit for pressing the bearing inner ring. The anti-rotation unit includes a pressure plate and an elastic reset component. A pressing control unit for driving the pressure plate to release the pressing state is provided on one side of the workpiece placement seat.

[0006] Preferably, the horizontal moving assembly includes a horizontal guide rail, a transmission screw, a drive motor, and a horizontal moving seat; the transmission screw is disposed inside the horizontal guide rail along its length direction, one end of the transmission screw is rotatably connected to the inner wall of one side of the horizontal guide rail via a bearing, and the other end passes through the inner wall of the other side of the horizontal guide rail and is coaxially fixedly connected to the output shaft of the drive motor, the drive motor is fixed to the outer wall of the corresponding side of the horizontal guide rail; the horizontal moving seat is threadedly engaged with the transmission screw, and the cross-section of the horizontal moving seat is a rectangle adapted to the inner cavity of the horizontal guide rail, so as to perform linear reciprocating motion along the horizontal guide rail.

[0007] Preferably, the vertical rotation assembly includes a rotary motor, a support base, and multiple support columns; the rotary motor is vertically arranged, with its lower end fixed vertically to the upper surface of the horizontal moving base, and its upper end of its output shaft passing through the support base and coaxially fixedly connected to the lower surface of the workpiece placement seat; the support base is arranged parallel above the horizontal moving base, and the multiple support columns are distributed in a matrix between the support base and the horizontal moving base, with the upper end of each support column fixed to a corner of the lower surface of the support base and the lower end fixed to the corresponding corner of the upper surface of the horizontal moving base.

[0008] Preferably, the upper surface of the workpiece placement seat is provided with a placement groove that matches the shape of the bearing workpiece.

[0009] Preferably, the elastic reset assembly includes a hinge seat, a hinge shaft, a fixed shaft, and two reset springs; the hinge seat is fixed in a groove on one side of the outer surface of the workpiece placement seat; the middle part of the pressure plate extends into the inner cavity of the hinge seat; a connecting hole is provided on the upper side of the middle part of the pressure plate, and the axis of the connecting hole is perpendicular to the rotation axis of the workpiece placement seat; the hinge shaft passes through the connecting hole, and both ends of the hinge shaft pass through the two side walls of the hinge seat, allowing the pressure plate to swing around the hinge shaft; convex shafts are symmetrically fixed on the outer surfaces of both sides of the hinge seat, and the axis of the convex shafts... The hinge shaft is parallel to the axis of the hinge shaft, and the convex shaft is located on the side closer to the workpiece placement seat. The convex shaft is located on the side farther away from the workpiece placement seat, and the two are diagonally distributed along the swing plane of the pressure plate. The fixed shaft passes through the lower end of the pressure plate, and the axis of the fixed shaft is parallel to the axis of the hinge shaft. Two return springs are symmetrically distributed on both sides of the hinge shaft seat. One end of the return spring is embedded in the first connecting groove opened at the corresponding end of the hinge shaft, and the other end passes around the outer peripheral surface of the convex shaft on the corresponding side of the hinge shaft seat and is embedded in the second connecting groove opened at the corresponding end of the fixed shaft.

[0010] Preferably, the pressing control unit includes a telescopic cylinder, which is arranged in a horizontal direction. Its fixed end is fixed to the upper surface of the support base by a fixing member, and its moving end is arranged towards the lower surface of the pressure plate.

[0011] Preferably, it also includes a rotation detection module, which is fixed to the upper surface of the support base, and a stop block is fixed to the outer surface of the lower end of the workpiece placement base; the rotation detection module is electrically connected to the rotary motor and the telescopic cylinder respectively, and is used to control the start and stop of the rotary motor and the extension and retraction of the telescopic cylinder.

[0012] Therefore, the present invention employs the above-mentioned bearing inner ring anti-rotation mechanism, which has the following technical effects: (1) This utility model provides a continuous elastic clamping force through the elastic reset component, so that the pressure plate is tightly pressed against the end face of the bearing inner ring, ensuring that the bearing inner ring and the workpiece placement seat rotate synchronously, fundamentally avoiding relative rotation between the inner ring and the outer ring during the processing, and effectively improving the processing uniformity and positional accuracy of processes such as inner ring dispensing and coating.

[0013] (2) This utility model uses a telescopic cylinder as a pressing control unit, which can quickly drive the pressure plate to lift and reset. Combined with the rotation detection module, it realizes real-time monitoring and automatic control of the rotation state. The loading and unloading operation is simple and can be directly connected to the automated processing production line, which greatly improves production efficiency.

[0014] (3) The horizontal moving component of this utility model realizes the horizontal adjustment of the overall work station through the screw drive. Combined with the circumferential rotation function of the vertical rotating component, it can adapt to the processing needs of different processing points and different specifications of bearings, and the equipment has strong versatility.

[0015] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a bearing inner ring anti-rotation mechanism according to this utility model; Figure 2 This is a side view of the overall structure of a bearing inner ring anti-rotation mechanism according to this utility model; Figure 3 This utility model relates to a bearing inner ring anti-rotation mechanism. Figure 2 Enlarged view of point A in the middle.

[0017] Figure Labels 1. Horizontal moving assembly; 11. Horizontal guide rail; 12. Transmission screw; 13. Drive motor; 14. Horizontal moving seat; 2. Vertical rotating assembly; 21. Rotary motor; 22. Support seat; 23. Support column; 3. Workpiece placement seat; 31. Placement slot; 32. Stop block; 4. Anti-rotation unit; 41. Pressure plate; 42. Elastic reset assembly; 421. Hinge seat; 422. Hinge shaft; 423. Protruding shaft; 424. Fixed shaft; 425. Return spring; 5. Pressing control unit; 51. Telescopic cylinder; 52. Fixing component; 6. Rotation detection module. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0019] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] like Figures 1 to 3 As shown, a bearing inner ring anti-rotation mechanism mainly consists of a horizontal moving component 1, a vertical rotating component 2, a workpiece placement seat 3, an anti-rotation unit 4, a pressing control unit 5, and a rotation detection module 6. It is used in the dispensing and coating process of the inner wall of the bearing inner ring to limit the relative rotation of the bearing inner ring and ensure processing accuracy.

[0021] The horizontal moving assembly 1 is the horizontal displacement drive unit of the entire mechanism, including a horizontal guide rail 11, a transmission screw 12, a drive motor 13, and a horizontal moving seat 14. The horizontal guide rail 11 is a long, slotted structure, fixedly mounted on the frame of the processing equipment. The transmission screw 12 is arranged along the length of the horizontal guide rail 11 within the guide rail cavity. Its left end is rotatably connected to the left inner wall of the horizontal guide rail 11 via a deep groove ball bearing, and its right end passes through the right side wall of the horizontal guide rail 11 and is coaxially fixed to the output shaft of the drive motor 13 via a coupling. The drive motor 13 is bolted to the right outer wall of the horizontal guide rail 11. The bottom of the horizontal moving seat 14 has a threaded hole that matches the transmission screw 12, forming a screw-nut pair. The cross-section of the horizontal moving seat 14 is rectangular, matching the cross-section of the inner cavity of the horizontal guide rail 11, forming a moving pair, which provides circumferential limiting for the horizontal moving seat 14. When the drive motor 13 drives the transmission screw 12 to rotate in both directions, it can drive the horizontal moving seat 14 to make linear reciprocating motion along the horizontal guide rail 11, thereby realizing the horizontal adjustment of the overall workstation.

[0022] The vertical rotation assembly 2 is installed above the horizontal moving base 14 and includes a rotary motor 21, a support base 22, and four support columns 23. The rotary motor 21 is a vertically arranged servo motor. Its lower end is vertically fixed to the center of the upper surface of the horizontal moving base 14 by bolts. Its output axis extends upward, passes through the central through hole of the support base 22, and is coaxially fixed to the center of the lower surface of the workpiece placement seat 3, driving the workpiece placement seat 3 to rotate circumferentially around the vertical axis. The support base 22 is a rectangular plate structure, arranged parallel to the top of the horizontal moving base 14. The four support columns 23 are distributed in a rectangular matrix at the four corners between the support base 22 and the horizontal moving base 14. The upper end of the support column 23 is bolted to the lower surface of the support base 22, and the lower end is fixed to the corresponding position on the upper surface of the horizontal moving base 14, forming a stable support frame to ensure the structural rigidity during rotation.

[0023] The workpiece placement seat 3 is a circular seat with a circular placement groove 31 on the center of its upper surface that matches the outer ring shape of the bearing workpiece. The bearing workpiece can be embedded in the placement groove 31 to achieve radial positioning and prevent radial displacement during rotation.

[0024] The anti-rotation unit 4 is located on the top side of the workpiece placement seat 3 and is used to press the inner ring of the bearing to prevent rotation. It includes a pressure plate 41 and an elastic reset component 42. The pressure plate 41 is a long strip lever structure, with its middle part hinged to the side of the workpiece placement seat 3 through the elastic reset component 42. Its upper end extends above the placement groove 31, and its lower end extends outward.

[0025] The elastic reset assembly 42 specifically includes a hinge seat 421, a hinge shaft 422, a convex shaft 423, a fixed shaft 424, and two reset springs 425. A recessed mounting groove is formed on one outer surface of the workpiece placement seat 3, and the hinge seat 421 is fixedly installed inside this groove by bolts. The middle part of the pressure plate 41 extends into the inner cavity of the hinge seat 421, and a transverse through-hole is formed at the upper middle position of the pressure plate 41. The axis of the through-hole is perpendicular to the rotation axis of the workpiece placement seat 3. The hinge shaft 422 passes through this through-hole, and both ends of the hinge shaft 422 penetrate the side walls of the hinge seat 421, allowing the pressure plate 41 to swing around the hinge shaft 422 in a vertical plane.

[0026] Symmetrically fixed convex shafts 423 are mounted on the outer walls of the left and right sides of the hinge shaft seat 421. The axis of the convex shaft 423 is parallel to the axis of the hinge shaft 422. In terms of spatial layout, the hinge shaft 422 is arranged on the side closer to the workpiece placement seat 3, and the convex shaft 423 is arranged on the side away from the workpiece placement seat 3. The two are diagonally distributed along the swing plane of the pressure plate 41, forming the fulcrum for the spring. A transverse through mounting hole is provided at the lower end of the pressure plate 41, and the fixed shaft 424 passes through the mounting hole. The axis of the fixed shaft 424 is also parallel to the axis of the hinge shaft 422.

[0027] Two return springs 425 are symmetrically arranged on the left and right sides of the hinge seat 421. One end of the return spring 425 is embedded in the first connecting groove opened at the corresponding end of the hinge 422, and the other end is bent downward and embedded in the second connecting groove opened at the corresponding end of the fixed shaft 424 after passing outward around the outer circumferential surface of the corresponding side convex shaft 423. In the natural state, the return spring 425 is in a stretched state, and its elastic tension pulls the lower end of the pressure plate 41 to swing away from the workpiece placement seat 3 through the fixed shaft 424. Based on the lever principle, the pressure plate 41 rotates around the hinge 422, and its upper end presses downward and tightly abuts against the upper end surface of the bearing inner ring, thereby fixing the bearing inner ring and the workpiece placement seat 3 relative to each other and ensuring that the two rotate synchronously.

[0028] The pressing control unit 5 is located on one side of the lower end of the pressure plate 41 and is used to drive the pressure plate 41 to release the pressing state, facilitating the loading and unloading of workpieces. The pressing control unit 5 includes a telescopic cylinder 51 and a fixing component 52. The telescopic cylinder 51 is arranged horizontally, and its cylinder body fixed end is fixed to the upper surface of the support base 22 by bolts through the L-shaped fixing component 52. Its piston rod moving end is set towards the lower end surface of the pressure plate 41. When the piston rod of the telescopic cylinder 51 extends, it can push the lower end of the pressure plate 41 to swing towards the workpiece placement seat 3, overcoming the tension of the return spring 425, so that the upper end of the pressure plate 41 is lifted upward, releasing the pressing on the inner ring of the bearing. At this time, the workpiece can be picked up and placed. When the piston rod retracts, the pressure plate 41 automatically resets and presses under the action of the return spring 425.

[0029] The rotation detection module 6 employs a photoelectric sensor, which is fixedly mounted on the upper surface of the support base 22, located on the lower side of the workpiece placement base 3. A stop block 32 is fixedly installed at a corresponding position on the lower outer surface of the workpiece placement base 3, and the stop block 32 rotates synchronously with the workpiece placement base 3. When the stop block 32 rotates past the detection groove of the rotation detection module 6, the sensor is triggered and outputs a detection signal to monitor the number of rotations, angle, and rotational speed of the workpiece placement base 3. The rotation detection module 6 is electrically connected to the control systems of the rotary motor 21 and the telescopic cylinder 51, respectively. It can control the start / stop and speed of the rotary motor 21 and the extension / retraction of the telescopic cylinder 51 according to the detection signals, thereby realizing automated control of the processing process.

[0030] Working principle: In the initial state, the piston rod of the telescopic cylinder 51 is extended, pushing against the lower end of the pressure plate 41, causing the upper end of the pressure plate 41 to lift up, and it is in a ready-to-load state. After the bearing workpiece to be processed is placed into the placement groove 31 of the workpiece placement seat 3 for positioning, the control system controls the piston rod of the telescopic cylinder 51 to retract, and the elastic tension of the return spring 425 drives the pressure plate 41 to rotate around the hinge shaft 422. The upper end of the pressure plate 41 presses down to the upper end face of the bearing inner ring, completing the inner ring anti-rotation limit.

[0031] Subsequently, the rotary motor 21 starts, driving the workpiece placement seat 3 and the bearing workpiece to rotate circumferentially at a uniform speed. Due to the pressing action of the pressure plate 41, the inner and outer rings of the bearing rotate synchronously with the workpiece placement seat 3, and there is no relative rotation between them. At this time, the dispensing device can perform dispensing operation on the inner wall of the center hole of the bearing inner ring. The dispensing position is uniform and stable, and there will be no deviation due to the inner ring deflection.

[0032] During processing, the horizontal moving component 1 can move the horizontal moving seat 14 horizontally via the drive motor 13 according to processing requirements, adjusting the overall processing position to adapt to different processing positions. The rotation detection module 6 detects the rotation status of the workpiece in real time. When the set number of rotations is reached, it controls the rotary motor 21 to stop rotating and controls the telescopic cylinder 51 to extend, lifting the pressure plate 41, so that the processed workpiece can be taken out, completing one processing cycle.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A bearing inner race rotation stopping mechanism characterized by: The device includes a horizontal moving component, a vertical rotating component, and a workpiece placement seat. The lower end of the vertical rotating component is connected to the horizontal moving component, and the workpiece placement seat is located at the upper end of the vertical rotating component. The top end of the workpiece placement seat is provided with an anti-rotation unit for pressing the inner ring of a bearing. The anti-rotation unit includes a pressure plate and an elastic reset component. The elastic reset component is used to control the pressure plate to perform a reset rotational movement along its axis. The elastic reset component includes a hinge seat, a hinge shaft, a fixed shaft, and two reset springs. A pressing control unit for driving the pressure plate to release its pressing state is provided on one side of the workpiece placement seat.

2. A bearing inner race rotation stopping mechanism according to claim 1, characterized in that: The horizontal moving assembly includes a horizontal guide rail, a transmission screw, a drive motor, and a horizontal moving seat. The transmission screw is disposed inside the horizontal guide rail along its length. One end of the transmission screw is rotatably connected to the inner wall of one side of the horizontal guide rail via a bearing, and the other end passes through the inner wall of the other side of the horizontal guide rail and is coaxially and fixedly connected to the output shaft of the drive motor. The drive motor is fixed to the outer wall of the corresponding side of the horizontal guide rail. The horizontal moving seat is threadedly engaged with the transmission screw, and the cross-section of the horizontal moving seat is a rectangle adapted to the inner cavity of the horizontal guide rail.

3. A bearing inner race rotation stopping mechanism according to claim 2, characterized in that: The vertical rotation assembly includes a rotary motor, a support base, and multiple support columns. The rotary motor is vertically arranged, with its lower end fixed vertically to the upper surface of the horizontal moving base. The upper end of its output shaft passes through the support base and is coaxially and fixedly connected to the lower surface of the workpiece placement seat. The support base is arranged parallel above the horizontal moving base, and the multiple support columns are distributed in a matrix between the support base and the horizontal moving base. The upper end of each support column is fixed to a corner of the lower surface of the support base, and the lower end is fixed to the corresponding corner of the upper surface of the horizontal moving base.

4. A bearing inner race rotation stopping mechanism according to claim 3, characterized in that: The upper surface of the workpiece placement seat is provided with a placement groove that matches the shape of the bearing workpiece.

5. A bearing inner race rotation stopping mechanism according to claim 4, characterized in that: The hinge seat is fixed in a groove on one side of the outer surface of the workpiece placement seat. The middle part of the pressure plate extends into the inner cavity of the hinge seat. A connecting hole is provided on the upper side of the middle part of the pressure plate. The axis of the connecting hole is perpendicular to the rotation axis of the workpiece placement seat. The hinge shaft passes through the connecting hole, and both ends of the hinge shaft pass through the two side walls of the hinge seat, allowing the pressure plate to swing around the hinge shaft. A convex shaft is symmetrically fixed on the outer surfaces of both sides of the hinge seat. The axis of the convex shaft is parallel to the axis of the hinge shaft. The convex shaft is located on the side closer to the workpiece placement seat, and the convex shaft is located on the side farther away from the workpiece placement seat. The two are diagonally distributed along the swing plane of the pressure plate. The fixed shaft passes through the lower end of the pressure plate, and the axis of the fixed shaft is parallel to the axis of the hinge shaft. Two return springs are symmetrically distributed on both sides of the hinge shaft seat. One end of the return spring is embedded in the first connecting groove opened at the corresponding end of the hinge shaft, and the other end passes around the outer circumferential surface of the convex shaft on the corresponding side of the hinge shaft seat and is embedded in the second connecting groove opened at the corresponding end of the fixed shaft.

6. A bearing inner race rotation stopping mechanism according to claim 5, characterized in that: The pressing control unit includes a telescopic cylinder, which is arranged in a horizontal direction. Its fixed end is fixed to the upper surface of the support base by a fixing member, and its moving end is arranged towards the lower surface of the pressure plate.

7. A bearing inner race rotation stopping mechanism according to claim 6, characterized in that: It also includes a rotation detection module, which is fixed to the upper surface of the support base, and a stop block is fixed to the outer surface of the lower end of the workpiece placement base; the rotation detection module is electrically connected to the rotary motor and the telescopic cylinder respectively, and is used to control the start and stop of the rotary motor and the extension and retraction of the telescopic cylinder.

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