Bearing press-fitting tool

Abstract

The utility model relates to bearing installation frock technical field discloses a kind of bearing press-in frock, it includes press-in disc, guide structure and rotary disc;Rotary disc is connected to the bottom surface of press-in disc, and rotary disc can be rotated and positioned relative to rotary disc, and press-in disc has the press-in surface for press machine to apply pressure;Guide structure is located in press-in disc and rotary disc, and multiple abutting pressure pieces are movably installed in guide structure, and abutting pressure piece has the abutting end of abutting pressure bearing end face, and all abutting ends are distributed in same annular region;Rotating rotary disc, and abutting pressure piece moves along the direction of approaching or moving away from the rotation center of rotary disc by guide structure, to make the annular region of multiple abutting ends zoom as target size.The bearing press-in frock of the utility model zooms the size of the annular region where abutting end is located, to adapt to the press-in work of bearing of different sizes, reduce the time and cost waste caused by replacing frock of different sizes.

Description

Technical Field

[0001] This utility model relates to the field of bearing installation tooling technology, and specifically to a bearing press-fit tooling. Background Technology

[0002] During the maintenance of cigarette equipment, worn bearings often need to be replaced. When installing a new bearing, the worker first needs to select an installation fixture 61 that matches the annular surface of the bearing's outer ring or inner ring, such as... Figure 9 As shown, the mounting surface of the mounting fixture 61 is then aligned and fitted with the annular surface of the bearing to be pressed in. The pressure is then transmitted to the bearing through the mounting fixture 61 using a press, thereby slowly pressing the bearing into its mounting position.

[0003] However, because there are numerous bearings of varying sizes in cigarette-making equipment, workers must carry a large number of installation tools of different diameters while inspecting the equipment. Furthermore, installing bearings requires a significant amount of time to select the appropriate tooling, making the entire process labor-intensive and resource-intensive, and reducing maintenance efficiency. Utility Model Content

[0004] The purpose of this invention is to propose a bearing press-fitting fixture with a variable diameter.

[0005] To achieve the above objectives, this utility model provides a bearing press-fitting fixture, which includes a press-fitting disc, a guide structure, and a rotating disc. The rotating disc is connected to one side of the press-fitting disc and can rotate and be positioned relative to the press-fitting disc. The side of the press-fitting disc facing away from the rotating disc is configured as a press-fitting surface for applying pressure by a press. The guide structure is disposed on the press-fitting disc and the rotating disc. Multiple pressing members are movably mounted on the guide structure. Each pressing member has a pressing end facing away from the rotating disc and used to press against the bearing end face. All pressing members are evenly distributed around the rotation center of the press-fitting disc so that all pressing ends are distributed in the same annular area. Based on the rotation of the rotating disc, the multiple pressing members move along the direction close to or away from the rotation center of the rotating disc through the guide structure so that the annular area where the multiple pressing ends are located is scaled to the target size to fit the bearing end face.

[0006] In some embodiments, the guide structure includes a plurality of guide units evenly distributed around the rotation center of the pressing disc, with each pressing member corresponding to one of the guide units. Each guide unit includes an arcuate groove on the pressing disc and a corresponding elongated hole on the rotating disc. The length direction of the elongated hole is consistent with the radial direction of the rotating disc. One end of the pressing member is provided with a shaft, which is movably inserted through its corresponding guide unit, and the end of the shaft facing away from the pressing member is movably installed in the corresponding arcuate groove. The bearing pressing fixture is provided with a limiting mechanism to restrict the axial movement of the shaft. Based on the rotation of the rotating disc, the shaft can move along the corresponding arcuate groove in the corresponding elongated hole to drive the annular area where the pressing end of the pressing member is located to expand or contract.

[0007] In some embodiments, the arcuate groove extends along a predetermined arc, which is an Archimedean spiral, and the trajectory of the shaft moving in the arcuate groove satisfies... ;in The total degree of rotation between the rotating disk and the pressing disk is given by r, which is the distance from the axis of the pressing disk to the axis of the shaft, and a is the Archimedean spiral coefficient.

[0008] In some embodiments, the bearing press-fit fixture further includes a locking mechanism, which includes a locking nut, a connecting column, and an eccentric wheel. The connecting column is fixedly connected to the side of the rotating disk, the eccentric wheel is movably sleeved on the connecting column, the locking nut is threaded onto the connecting column, and the eccentric wheel is located between the locking nut and the rotating disk. By rotating the locking nut, the eccentric wheel can simultaneously press against the side of the rotating disk and the side of the press-fit disk, so that the rotating disk can be positioned relative to the press-fit disk. By rotating the locking nut in the opposite direction, the eccentric wheel can simultaneously move away from the side of the rotating disk and the side of the press-fit disk, so that the rotating disk can rotate relative to the press-fit disk.

[0009] In some embodiments, one side of the pressing disc is attached to one side of the rotating disc, and a rotating shaft is embedded in the middle of the pressing disc and the rotating disc. The top end of the rotating shaft is fixedly connected to the pressing disc, and the bottom end of the rotating shaft is rotatably connected to the rotating disc through a bearing.

[0010] In some embodiments, the limiting mechanism includes a support rod, the two ends of which are respectively connected to the two ends of the elongated hole along its length direction. The support rod passes perpendicularly through the shaft, and the shaft is capable of moving in the elongated hole along the length direction of the support rod.

[0011] In some embodiments, the limiting mechanism further includes a slider and a spring. The slider is slidably sleeved on the support rod, and its two ends are slidably connected to the two sides of the width direction of the elongated hole. The slider has a pressing plane and an arc surface that are relatively distributed along the length direction of the elongated hole. The arc surface fits against the circumferential surface of the support rod, and the pressing plane faces the axis of the rotating disk. The spring is sleeved on the support rod, and one end of the spring presses against the pressing plane. The other end of the spring presses against the end of the elongated hole near the axis of the rotating disk.

[0012] In some embodiments, the guide unit further includes a threaded hole and a through hole, both of which communicate with the elongated hole; the threaded hole is located on the side of the elongated hole closer to the axis of the rotating disk, and the through hole is located on the side of the elongated hole away from the axis of the rotating disk, and the support rod can enter the elongated hole through the through hole and be threadedly connected to the threaded hole.

[0013] In some embodiments, the end of the support rod away from the center of rotation of the rotating disk has a hexagonal groove.

[0014] In some embodiments, the circumferential surface of the pressing disc is provided with calibration lines for calibrating the rotational position, and the circumferential surface of the rotating disc is provided with a plurality of scale lines for identifying the size of the annular region.

[0015] The above-mentioned technical solution of this utility model has the following beneficial effects:

[0016] The pressing disc and the rotating disc are coaxially rotatably connected, allowing them to rotate relative to each other and lock. To ensure uniform force on the bearing end face during installation, the abutment ends that contact the bearing cross-section are positioned within the same annular region at the same time. When the size of the annular region containing the abutment ends needs adjustment, the pressing disc and the rotating disc are allowed to rotate relative to each other, and the operator rotates the rotating disc. During rotation, all abutment components move along the direction of rotation towards or away from the center of rotation of the rotating disc via a guide structure. This movement manifests as synchronized linear motion of all abutment ends relative to the rotating disc in the radial direction. Therefore, during rotation, all abutment ends remain within the same annular region at all times. When the annular region containing the abutment ends is scaled to the target size—that is, when the size of the annular region matches the size of the bearing to be installed—the pressing disc and the rotating disc are locked together, thus pressing the bearing to be installed. During press fitting, the pressing end presses against the end face of the bearing to be installed, and the press presses against the pressing surface of the pressing disc and applies pressure towards the bearing to be installed. Therefore, the bearing press fitting fixture of this invention adapts to the press fitting of bearings of different sizes by scaling the size of the annular area where the pressing end is located, reducing the time and cost waste caused by changing fixtures of different sizes. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the bearing press-fitting fixture of this utility model;

[0018] Figure 2 This is an exploded view of the bearing press-fitting fixture of this utility model;

[0019] Figure 3 This is a schematic diagram showing the correspondence between the pressing disc and the rotating disc of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection between the shaft and the support rod of this utility model;

[0021] Figure 5 This is a schematic diagram of the slider and elongated hole of this utility model;

[0022] Figure 6 This is a schematic diagram showing the positions of the through hole and the threaded hole in this utility model;

[0023] Figure 7 This is a schematic diagram of the annular region corresponding to the end face of the pressing member of this utility model;

[0024] Figure 8 This is a schematic diagram of the bearing press-fitting fixture of this utility model acting on the inner or outer ring of the bearing;

[0025] Figure 9 This is a schematic diagram of the installation tooling applying force to the inner ring of the bearing to be installed in the background art.

[0026] Explanation of reference numerals in the attached figures

[0027] 1. Press-fit disc; 11. Arc groove; 12. Press-fit surface;

[0028] 2. Rotating disk; 21. Elongated hole;

[0029] 3. Locking mechanism; 31. Locking nut; 32. Connecting column; 33. Eccentric wheel;

[0030] 4. Split bearing; 41. Pressing component; 42. Annular area;

[0031] 5. Shaft;

[0032] 6. Rotating shaft; 61. Installation fixture;

[0033] 7. Bearings; 71. Sealing rings;

[0034] 81. Support rod; 82. Slider; 83. Spring; 84. Threaded hole; 85. Through hole; 87. Hexagonal groove;

[0035] 91. Calibration line; 92. Scale line. Detailed Implementation

[0036] The specific embodiments of this utility model are described in detail below. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0037] In this utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the orientation in the assembled and used state. "Inner" and "outer" refer to the inner and outer sides relative to the outline of each component itself.

[0038] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0039] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model provides a bearing press-fitting fixture, which includes a press-fitting disc 1, a guide structure, and a rotating disc 2. The rotating disc 2 is connected to one side of the press-fitting disc 1 and can rotate and be positioned relative to the press-fitting disc 1. The side of the press-fitting disc 1 facing away from the rotating disc 2 is set as a press-fitting surface 12 for applying pressure by a press. The guide structure is disposed on the press-fitting disc 1 and the rotating disc 2. A plurality of pressing members 41 are movably mounted on the guide structure. Each pressing member 41 has a pressing end facing away from the rotating disc 2 and used to press against the bearing end face. All pressing members 41 are evenly distributed around the rotation center of the press-fitting disc 1 so that all pressing ends are distributed in the same annular area 42. Based on the rotation of the rotating disc 2, the plurality of pressing members 41 move along the direction close to or away from the rotation center of the rotating disc 2 through the guide structure so that the annular area 42 where the plurality of pressing ends are located is scaled to the target size to fit the bearing end face.

[0040] Specifically, the pressing disc 1 and the rotating disc 2 are coaxially rotatably connected, allowing them to rotate relative to each other and lock. To ensure uniform force on the bearing end face during installation, the abutment ends contacting the bearing end face are positioned within the same annular region at the same time. When adjusting the size of the annular region containing the abutment ends, the pressing disc 1 and the rotating disc 2 are rotated relative to each other, and the worker rotates the rotating disc 2. During rotation, all abutment components move along the direction of rotation towards or away from the center of rotation of the rotating disc 2 via a guide structure. This movement manifests as synchronized linear motion of all abutment ends relative to the rotating disc 2 in the radial direction. Therefore, during rotation, all abutment ends remain within the same annular region at all times. When the annular region containing the abutment ends is scaled to the target size, i.e., when the size of the annular region matches the size of the bearing to be installed, the pressing disc 1 and the rotating disc 2 are locked together, thus pressing the bearing to be installed. Figure 8 As shown, during press fitting, the pressing end presses against the end face of the bearing to be installed, and the press presses against the pressing surface of the pressing disc 1 and applies pressure towards the bearing to be installed. Therefore, the bearing press fitting fixture of this utility model can adapt to the press fitting of bearings of different sizes by scaling the size of the annular area where the pressing end is located, thus reducing the time and cost waste caused by changing fixtures of different sizes.

[0041] It should also be noted that the "annular region" in this application refers to the part or all of the end faces of the bearing end that are used to press against the bearing end face on a plane perpendicular to the axis of the rotating disk 2, which together form an annular region.

[0042] In some embodiments of this utility model, the guide structure includes multiple guide units evenly distributed around the rotation center of the pressing disc 1, and each of the pressing members 41 corresponds to one of the guide units. The guide unit includes an arc-shaped groove 11 provided on the pressing disc 1 and a corresponding elongated hole 21 provided on the rotating disc 2. The length direction of the elongated hole 21 is consistent with the radial direction of the rotating disc 2. One end of the pressing member is provided with a shaft 5, which is movably inserted through its corresponding guide unit. The end of the shaft 5 facing away from the pressing member 41 is movably installed in the corresponding arc-shaped groove 11. The bearing pressing fixture is provided with a limiting mechanism to restrict the axial movement of the shaft 5. Based on the rotation of the rotating disc 2, the shaft 5 can move along the corresponding arc-shaped groove 11 in the corresponding elongated hole 21 to drive the annular area 42 where the pressing end of the pressing member 41 is located to expand and contract.

[0043] Specifically, when the rotating disk 2 is rotated, since the shaft 5 is located in the elongated hole 21 of the rotating disk 2, the shaft 5 will rotate together with it. At this time, the arc-shaped groove 11 of the press-fit disk 1 plays a guiding role for the shaft 5, so that the shaft 5 moves along its arc direction in the arc-shaped groove 11. In order to ensure the consistency of the movement of each part of the shaft 5, the shaft 5 will move radially relative to the rotating disk 2 in the elongated hole 21. That is, the pressing end only moves radially relative to the rotating disk 2, so that the pressing end completes the scaling movement of its annular area relative to the rotating disk 2.

[0044] Of course, the radius of curvature and direction of the arc groove 11 are set to match the radial linear motion of the pressing end. For example, when the rotating disk 2 rotates clockwise, the shaft 5 moves clockwise within the arc groove 11 according to the shape of the arc groove 11, causing the pressing end to move radially toward the axis of the rotating disk 2.

[0045] In some embodiments, the pressing element is a split bearing shell 4 that can be assembled into a single cylinder. The split bearing shell 4 is located below the rotating disk 2, and the bottom surface of all the split bearing shells 4 serves as the pressing end for pressing against the bearing end face. All pressing ends are located in the same annular region 42 and are evenly distributed circumferentially within the annular region 42. For better installation, the split bearing shells 4 are fitted snugly against the rotating disk 2. Figure 7 As shown, the annular region corresponding to the split bearing 4 is illustrated. The annular region 42 can be scaled by rotating the rotating disk.

[0046] In some embodiments of this utility model, the arc-shaped groove 11 extends along a preset arc, which is an Archimedean spiral, and the trajectory of the shaft 5 moving in the arc-shaped groove 11 satisfies ;in The total degree of rotation of the rotating disk 2 relative to the pressing disk 1 is denoted by r, which is the distance from the axis of the pressing disk 1 to the axis of the shaft 5, and a is the Archimedean spiral coefficient.

[0047] Specifically, when the shaft 5 moves along an Archimedean spiral in the arc groove 11, its trajectory can be decomposed into a circular motion about the axis of the press-fitting disk 1 and a linear motion along the length direction of its corresponding elongated hole 21. In the elongated hole 21, the circular motion of the shaft 5 about the axis of the press-fitting disk 1 is equivalent to the amount of rotation of the rotating disk 2 by the worker; therefore, the shaft 5 only performs a linear motion relative to the rotating disk 2 along the length direction of its corresponding elongated hole 21. Since the extension line of the length direction of the elongated hole 21 coincides with the radial direction of the rotating disk 2, all the linear motions of the shaft 5 are radial linear motions along the radius of the rotating disk 2. Therefore, the pressing end connected to the shaft 5 can always remain in the same annular region during the rotation of the rotating disk 2.

[0048] In some embodiments of this utility model, the bearing press-fit fixture further includes a locking mechanism 3. The locking mechanism 3 includes a locking nut 31, a connecting column 32, and an eccentric wheel 33. The connecting column 32 is fixedly connected to the side of the rotating disk 2, the eccentric wheel 33 is movably sleeved on the connecting column 32, the locking nut 31 is threaded onto the connecting column, and the eccentric wheel 33 is located between the locking nut 31 and the rotating disk 2. By rotating the locking nut 31, the eccentric wheel 33 can simultaneously press against the side of the rotating disk 2 and the side of the press-fit disk 1, so that the rotating disk 2 can be positioned relative to the press-fit disk 1. By rotating the locking nut 31 in the opposite direction, the eccentric wheel 33 can simultaneously move away from the side of the rotating disk 2 and the side of the press-fit disk 1, so that the rotating disk 2 can rotate relative to the press-fit disk 1. The diameter of the press-fit disk 1 is larger than the diameter of the rotating disk 2; and the thickness of the eccentric wheel 33 gradually increases from the connecting column 32 towards the press-fit disk 1.

[0049] Specifically, when it is necessary to lock the positions of the pressing disc 1 and the rotating disc 2 using the locking mechanism 3, the worker can rotate the thicker part of the eccentric wheel 33 to correspond to the circumference of the pressing disc 1, and then tighten the locking nut 31, so that the eccentric wheel 33 presses against the circumference of the pressing disc 1, thereby fixing the pressing disc 1 and the rotating disc 2. Similarly, when it is necessary to rotate the pressing disc 1 and the rotating disc 2 relative to each other, simply loosen the locking nut 31.

[0050] In some embodiments of this utility model, one side of the pressing disc 1 is attached to one side of the rotating disc 2, and a rotating shaft 6 is embedded in the middle of the pressing disc 1 and the rotating disc 2. The top end of the rotating shaft 6 is fixedly connected to the pressing disc 1, and the bottom end of the rotating shaft 6 is rotatably connected to the rotating disc 2 through a bearing 7.

[0051] Specifically, in order to extend the service life of bearing 7, a sealing ring 71 is provided on the outer periphery of bearing 7.

[0052] In some embodiments of this utility model, the limiting mechanism includes a support rod 81, the two ends of which are respectively connected to the two ends of the elongated hole 21 along its length direction. The support rod 81 is perpendicularly inserted through the shaft 5, and the shaft 5 is able to move in the elongated hole 21 along the length direction of the support rod 81.

[0053] Specifically, the length direction of the support rod 81 is consistent with the length direction of the elongated hole 21. When the rotating disk 2 rotates, the shaft 5 moves linearly along the length direction of the support rod 81, and the support rod 81 can limit the radial displacement of the shaft 5.

[0054] like Figure 4 and Figure 5As shown, in some embodiments of this utility model, the limiting mechanism further includes a slider 82 and a spring 83. The slider 82 is slidably sleeved on the support rod 81. The two ends of the slider 82 are slidably connected to the two sides of the width direction of the elongated hole 21, respectively. The slider 82 has a pressing plane and an arc surface that are relatively distributed along the length direction of the elongated hole 21. The arc surface is in contact with the circumferential surface of the support rod 81, and the pressing plane faces the axis of the rotating disk 2. The spring 83 is sleeved on the support rod 81 and one end of it presses against the pressing plane. The other end of the spring 83 presses against the end of the elongated hole 21 that is close to the axis of the rotating disk 2.

[0055] Specifically, the spring 83 is always in a compressed state, which can automatically adapt to the positional changes of the shaft 5 within the elongated hole 21. When the shaft 5 undergoes radial displacement, the slider 82 can slide accordingly on the support rod 81, and the spring 83 will automatically adjust its compression level to maintain stable positioning of the shaft 5.

[0056] like Figure 6 As shown, in some embodiments of this utility model, the guide unit further includes a threaded hole 84 and a through hole 85, both of which are connected to the elongated hole 21; the threaded hole 84 is located on the side of the elongated hole 21 close to the axis of the rotating disk 2, and the through hole 85 is located on the side of the elongated hole 21 away from the axis of the rotating disk 2; the support rod 81 can enter the elongated hole 21 through the through hole 85 and be threadedly connected to the threaded hole 84.

[0057] Specifically, the support rod 81 can enter the elongated hole 21 through the through hole 85, then pass through the through hole provided for it in the slider 82, and be threadedly connected to the threaded hole 84.

[0058] In some embodiments of this utility model, the end of the support rod 81 away from the rotation center of the rotating disk 2 has a hexagonal groove 87, the size of which is adapted to the size of existing wrenches to facilitate the disassembly and installation of the support rod 81.

[0059] In some embodiments of this utility model, the circumferential surface of the press-fit disc 1 is provided with calibration lines 91 for calibrating the rotation position, and the circumferential surface of the rotating disc 2 is provided with multiple scale lines 92 for marking the size of the annular area.

[0060] Specifically, when the rotating disk 2 is rotated, the worker can determine the size of the annular region where the pressing end is currently located based on the position of the scale line 92 corresponding to the calibration line 91. The specific arrangement of the scale line 92 is determined according to the parameters of the arc groove 11. For example, by setting different Archimedean spiral coefficients 'a', the speed of size adjustment of the annular region can be set, that is, the change in diameter of the annular region when the rotating disk 2 rotates by a unit angle can be set. By setting the Archimedean spiral coefficient 'a', production of different bearing pressing fixtures required for coarse and fine adjustments can be achieved. In addition, for the Archimedean spiral, it ensures that the diameter of the annular region is proportional to the rotation angle, so the scale lines 92 are equidistantly arranged. When the pressing end is a split bearing 4, the minimum diameter of the annular region is equivalent to the diameter of the cylinder formed by the split bearing 4 when they are joined together, and the maximum diameter is the diameter of the annular region corresponding to the extreme position of the shaft 5 when it is far from the rotation center of the arc groove 11. In addition, the determination of the extreme position of the arc groove 11 away from the center of rotation must ensure that the press-fit disc 1 has the required compressive strength.

[0061] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0062] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0063] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A bearing press-fitting fixture, characterized in that, It includes a press-fit disc (1), a guide structure, and a rotating disc (2); The rotating disk (2) is connected to one side of the pressing disk (1), and the rotating disk (2) can rotate and be positioned relative to the pressing disk (1). The side of the pressing disk (1) facing away from the rotating disk (2) is set as a pressing surface (12) for the press to apply pressure. The guide structure is disposed on the press-fit disc (1) and the rotating disc (2). A plurality of pressing members (41) are movably mounted on the guide structure. Each pressing member (41) has a pressing end facing away from the rotating disc (2) and used to press against the bearing end face. All the pressing members (41) are evenly distributed around the rotation center of the press-fit disc (1) so that all the pressing ends are distributed in the same annular area (42). Based on the rotation of the rotating disk (2), multiple pressing members (41) move along the direction close to or away from the rotation center of the rotating disk (2) through the guide structure, so that the annular area (42) where the multiple pressing ends are located is scaled to the target size to fit the bearing end face.

2. The bearing press-fitting fixture according to claim 1, characterized in that, The guide structure includes multiple guide units evenly distributed around the rotation center of the press-fit disc (1), and each of the pressing members (41) corresponds to one of the guide units. The guide unit includes an arc-shaped groove (11) on the press-fit disc (1) and a corresponding elongated hole (21) on the rotating disc (2). The length direction of the elongated hole (21) is consistent with the radial direction of the rotating disc (2). One end of the pressing member (41) is provided with a shaft (5). The shaft (5) is movably inserted into the guide unit, and the end of the shaft (5) facing away from the pressing member (41) is movably installed in the corresponding arc-shaped groove (11). The bearing press-fit fixture is provided with a limiting mechanism to restrict the axial movement of the shaft (5). Based on the rotation of the rotating disk (2), the shaft (5) can move along the corresponding arc groove (11) in the corresponding elongated hole (21) to drive the annular area (42) where the pressing end of the pressing member (41) is located to scale.

3. The bearing press-fitting fixture according to claim 2, characterized in that, The arc-shaped groove (11) extends along a preset arc, which is an Archimedean spiral. The trajectory of the shaft (5) moving in the arc-shaped groove (11) satisfies... ;in The total degree of rotation of the rotating disk (2) relative to the pressing disk (1) is r, which is the distance from the axis of the pressing disk (1) to the axis of the shaft (5), and a is the Archimedean spiral coefficient.

4. The bearing press-fitting fixture according to claim 3, characterized in that, The bearing press-fit fixture also includes a locking mechanism (3), which includes a locking nut (31), a connecting column (32), and an eccentric wheel (33). The connecting column (32) is fixedly connected to the side of the rotating disk (2), the eccentric wheel (33) is movably sleeved on the connecting column (32), the locking nut (31) is threaded onto the connecting column (32), and the eccentric wheel (33) is located between the locking nut (31) and the rotating disk (2). By rotating the locking nut (31), the eccentric wheel (33) can simultaneously press against the side of the rotating disk (2) and the side of the pressing disk (1), so that the rotating disk (2) can be positioned relative to the pressing disk (1); by rotating the locking nut (31) in the opposite direction, the eccentric wheel (33) can simultaneously move away from the side of the rotating disk (2) and the side of the pressing disk (1), so that the rotating disk (2) can rotate relative to the pressing disk (1).

5. The bearing press-fitting fixture according to claim 2, characterized in that, One side of the pressing disc (1) is attached to one side of the rotating disc (2). A rotating shaft (6) is embedded in the middle of the pressing disc (1) and the rotating disc (2). The top end of the rotating shaft (6) is fixedly connected to the pressing disc (1), and the bottom end of the rotating shaft (6) is rotatably connected to the rotating disc (2) through a bearing (7).

6. The bearing press-fitting fixture according to claim 2, characterized in that, The limiting mechanism includes a support rod (81), the two ends of which are respectively connected to the two ends of the elongated hole (21) along its length direction. The support rod (81) passes vertically through the shaft (5), and the shaft (5) is able to move in the elongated hole (21) along the length direction of the support rod (81).

7. The bearing press-fitting fixture according to claim 6, characterized in that, The limiting mechanism also includes a slider (82) and a spring (83). The slider (82) is slidably sleeved on the support rod (81). The two ends of the slider (82) are slidably connected to the two sides of the width direction of the elongated hole (21). The slider (82) has a pressing plane and an arc surface that are relatively distributed along the length direction of the elongated hole (21). The arc surface is in contact with the circumferential surface of the support rod (81). The pressing plane faces the axis of the rotating disk (2). The spring (83) is sleeved on the support rod (81) and one end of it presses against the pressing plane. The other end of the spring (83) presses against the end of the elongated hole (21) near the axis of the rotating disk (2).

8. The bearing press-fitting fixture according to claim 7, characterized in that, The guide unit also includes a threaded hole (84) and a through hole (85), both of which are connected to the elongated hole (21); The threaded hole (84) is located on the side of the elongated hole (21) close to the axis of the rotating disk (2), and the through hole (85) is located on the side of the elongated hole (21) away from the axis of the rotating disk (2). The support rod (81) can enter the elongated hole (21) through the through hole (85) and be threaded to the threaded hole (84).

9. The bearing press-fitting fixture according to claim 8, characterized in that, The end of the support rod (81) away from the rotation center of the rotating disk (2) has a hexagonal groove (87).

10. The bearing press-fitting fixture according to claim 3, characterized in that, The circumferential surface of the press-fit disc (1) is provided with calibration lines (91) for calibrating the rotation position, and the circumferential surface of the rotating disc (2) is provided with multiple scale lines (92) for marking the size of the annular area (42).

Images