Spinning device and method for box-shaped needle roller thrust bearing assembly

Abstract

The invention discloses a box-shaped needle roller thrust bearing assembly spinning device and method, and relates to the technical field of box-shaped needle roller thrust bearing assemblies. A box-shaped needle roller thrust bearing assembly spinning device comprises a driving mechanism, and the driving mechanism is connected with a rotating shaft and can drive the rotating shaft to rotate and move. The rotating shaft is rotationally connected with a retainer body, a spinning roller is arranged on the retainer body, the retainer body is used for limiting the spinning roller to make contact with the rotating shaft, and the rotating shaft rotates to drive the spinning roller to rotate; a bearing seat is arranged on one side of the retainer body, and the driving mechanism can drive the spinning rollers to move in the axis direction of the rotating shaft and drive the spinning rollers to roll in the circumferential direction of the rotating shaft through the rotating shaft. The invention further provides a spinning method applied to the spinning device for the box-shaped needle roller thrust bearing assembly. The consistency of the tightness state of each position of the flanging forming structure can be improved as much as possible.

Description

Technical Field

[0001] The present application relates to the technical field of box-shaped thrust needle roller bearing assemblies, and in particular to a spinning device and method for box-shaped thrust needle roller bearing assemblies. Background Art

[0002] In the field of mechanical manufacturing, box-type thrust needle roller bearings are widely used in various types of mechanical equipment with high requirements for axial load-bearing capacity. The rationality of the assembly process of its various parts directly affects the overall operating stability and reliability of the equipment.

[0003] Generally, to obtain the box-shaped thrust needle roller bearing factory products, you need to first assemble the box-shaped thrust needle roller bearing assembly, refer to Figure 1 The components of a box-shaped thrust needle roller bearing assembly are cage A box a, cage B box b, and multiple needle rollers c. Both cage A box a and cage B box b have annular grooves, and cage A box a has multiple pockets. During assembly, the needle rollers c are installed in the pockets. Cage A box a is then reversely fastened to cage B box b, positioning cage A box a within the annular grooves to form a semi-finished product. A punch press is then used to stamp the inner wall of cage B box b along its axis, forming a flange. This flange then wraps around cage A box a, ensuring a tight fit between cage A box a and cage B box b, resulting in the finished product.

[0004] A punch press usually includes at least a punch for punching and a guide rail and a slider that slide together to guide the punch. When the punch rivets the retainer B box, due to the matching gap that usually exists between the guide rail and the slider and the large punching force of the punch press, it may be difficult for the punch to complete uniform punching of the retainer B box. The retainer B box may be subjected to uneven force in the circumferential direction, and the tightness of each position of the flange forming structure will be inconsistent, which may cause the retainer A box to be misaligned with respect to the retainer B box and the occurrence of dead pins with poor flexibility, resulting in assembly that does not meet the requirements. Summary of the Invention

[0005] In order to maximize the consistency of the tightness of each position of the flange forming structure and thereby ensure that the assembly of each part of the box-shaped thrust needle roller bearing assembly meets the requirements, the present application provides a box-shaped thrust needle roller bearing assembly spinning device and method.

[0006] The present application provides a spinning device for a box-shaped thrust needle roller bearing assembly, comprising a driving mechanism connected to a rotating shaft and capable of driving the rotating shaft to rotate and move; the rotating shaft is rotatably connected to a retaining frame body, and the retaining frame body is provided with a spinning roller. The retaining frame body is used to limit the spinning roller to contact with the rotating shaft, and the rotation of the rotating shaft can drive the spinning roller to rotate; A bearing seat is provided on one side of the retaining frame, and the driving mechanism can drive the spinning roller to move along the axial direction of the rotating shaft and drive the spinning roller to roll along the circumferential direction of the rotating shaft through the rotating shaft: By adopting the above technical solution, the following actions can be achieved: the semi-finished product is placed on the supporting seat, the driving mechanism is driven to move the rotating shaft until the spinning roller contacts the retaining frame B box of the semi-finished product, and then the driving mechanism is driven again to move and rotate the rotating shaft. At this time, the spinning roller will move along the axial direction of the rotating shaft, pressing the retaining frame B box and at the same time, the spinning roller will be driven by the rotating shaft to rotate and roll on the retaining frame B box. The retaining frame B box will be spun out with a flange. This flanging forming method has a relatively consistent tightness state at each position, and the subsequent various parts of the box-shaped thrust needle roller bearing assembly can also meet the requirements accordingly.

[0007] Since the retaining frame body is rotatably connected to the rotating shaft and the spinning roller is pressed on the retaining frame B box by the rotating shaft, when the spinning roller spins the retaining frame B box, the retaining frame body only serves to guide the spinning roller. It is used to ensure the reliability of the rolling and pressing action of the spinning roller to ensure that the spinning roller can achieve uniform pressing on the retaining frame B box.

[0008] Preferably, the bearing seat includes a mounting groove at an end portion, and the mounting groove is provided with a bearing ring for supporting the semi-finished product; A mounting seat is slidably connected to the rotating shaft, and a pressure ring opposite to the bearing ring is installed on the end of the mounting seat close to the bearing seat; the rotating shaft is also rotatably connected to a connecting plate, and the connecting plate is located on the side of the mounting seat away from the bearing seat. An elastic member is provided between the connecting plate and the mounting seat, and one end of the elastic member is connected to the connecting plate, and the other end is connected to the mounting seat.

[0009] By adopting the above technical solution, the following actions can be achieved: after the semi-finished product is placed on the carrying ring, the driving mechanism drives the connecting plate to move and thus drives the mounting seat to move. The movement of the mounting seat will drive the pressure ring to move and press the semi-finished product onto the carrying ring. At this time, the pressing force of the pressure ring on the semi-finished product is achieved by the pressure of the elastic part on the mounting seat; then the driving mechanism is driven to drive the rotating shaft to move and rotate to realize the spinning of the retaining frame B box by the spinning roller.

[0010] This solution aims to achieve the following functions: when the spinning roller spins the retainer B box, the pressure ring can continuously and reliably press the semi-finished product; reduce the impact of the rotating action of the rotating shaft on the pressed state of the semi-finished product, that is, the action of the rotating shaft in this application is unlikely to cause the pressure ring to rotate or vibrate, making the pressing unstable.

[0011] Preferably, a guide column is installed on the bearing seat, a guide sleeve is installed on the mounting seat, and the guide column is slidably connected to the guide sleeve; an elastic member is provided between the bearing seat and the guide sleeve, one end of the elastic member is connected to the bearing seat, and the other end is connected to the guide sleeve; The elastic member and the elastic force member are both springs, and the compression force of the elastic force member is smaller than the compression force of the elastic member.

[0012] By adopting the above technical solution, after the pressure ring has pressed the semi-finished product, that is, the spinning is completed, the driving mechanism drives the rotating shaft to move and reset. At this time, the elastic member can assist the mounting seat to quickly reset; the sliding connection between the guide column and the guide sleeve can guide the movement of the mounting seat, thereby ensuring the accuracy of the semi-finished product pressing action.

[0013] Preferably, a limiting column is installed at one end of the mounting seat close to the connecting plate, and the limiting column can abut against the connecting plate to limit the moving distance of the rotating shaft.

[0014] By adopting the above technical solution, the limiting column can limit the movement of the connecting plate, that is, the movement of the rotating shaft. This design is intended to control the spinning depth of the retainer B box by the spinning roller.

[0015] Preferably, a mounting hole is provided on the mounting seat, and the limiting column is threadedly connected to the mounting hole, and the limiting column can be rotated and moved along its own axis.

[0016] By adopting the above technical solution, the limiting post can be rotated and then moved to adjust the distance between the limiting post and the connecting plate and then adjust the spinning depth.

[0017] Preferably, the rotating shaft has a step portion, and a mounting gap is provided between the end of the mounting seat close to the bearing seat and the step portion, and a rotating support is mounted on the step portion within the mounting gap.

[0018] By adopting the above technical solution, due to the instability of the states of the elastic part and the elastic force part, after the spinning is completed, under the action of the elastic part, the high-speed moving rotating shaft, i.e., the step portion, will be reset, and the rotating support will contact the mounting seat. The rotating support is used to reduce the possible friction of the rotating shaft on the mounting seat.

[0019] Preferably, a first connecting hole is opened on the rotating shaft, and the retaining frame body has a second connecting hole. The first connecting hole is detachably connected to a limiting member, and the limiting member is passed through the second connecting hole and limits the position of the retaining frame body in the axial direction of the rotating shaft.

[0020] By adopting the above technical solution, the position of the retaining frame is limited by the limiting member while the retaining frame is allowed to rotate relative to the rotation axis.

[0021] Preferably, the retaining frame body includes a base having a plurality of spaced-apart limiting protrusions along its circumferential direction, and an installation window for installing a spinning roller is formed between adjacent limiting protrusions, and the limiting protrusions can confine the spinning roller within the installation window.

[0022] By adopting the above technical solution, the limiting protrusion is used to limit the position of the spinning roller relative to the base and at the same time ensure that the spinning roller rotates reliably.

[0023] Preferably, the driving mechanism includes a frame, a driving member is installed on the frame, the driving member is connected to a spline sleeve and the driving member is used to drive the spline sleeve to rotate, the spline sleeve is rotatably connected to the frame, the spline sleeve is slidably connected to the spline shaft and the spline sleeve can drive the spline shaft to rotate; the frame is also provided with a reciprocating driving member, the reciprocating driving member is connected to a linkage arm, a rotation support member is installed on the spline shaft, the rotation support member is connected to the linkage arm, the linkage arm can drive the linkage arm to move back and forth along the axial direction of the spline shaft through the rotation support member, and the spline shaft can rotate relative to the linkage arm; the spline shaft is connected to the rotating shaft.

[0024] By adopting the above technical solution, the driving driving member can drive the spline sleeve to rotate, thereby driving the spline shaft to rotate and then driving the rotating shaft to rotate; the driving reciprocating driving member can drive the spline shaft to move back and forth through the linkage arm, and the spline shaft will slide on the spline sleeve.

[0025] The present application also provides a spinning method applied to the box-shaped thrust needle roller bearing assembly spinning device, comprising the following steps: S1. Place the semi-finished product on the bearing seat and drive the driving mechanism to move the rotating shaft until the spinning roller contacts the cage B box; S2. The driving mechanism drives the rotating shaft to rotate and move simultaneously, thereby driving the spinning roller to roll on the retainer B box and driving the spinning roller to press the retainer B box to complete the spinning of the retainer B box.

[0026] By adopting the above technical solution, the flanging action of the retainer B box completed by the above action is reliable, the flanging structure is evenly stressed, and the tightness of each position is good.

[0027] In summary, the present invention includes at least one of the following beneficial technical effects: 1. This application can achieve the following actions: the semi-finished product is placed on the bearing seat, the driving mechanism drives the rotating shaft to move until the spinning roller contacts the semi-finished product's retainer B box, and then the driving mechanism is driven again to move and rotate the rotating shaft. At this time, the spinning roller moves along the axis of the rotating shaft, pressing retainer B box. Simultaneously, the spinning roller is driven by the rotating shaft to rotate on retainer B box, and retainer B box is spun to form a flange. This flange forming method achieves a relatively consistent tightness at all positions, and the various components of the subsequent box-shaped thrust needle roller bearing assembly can also meet the corresponding requirements. 2. The present application can also achieve the following actions: after the semi-finished product is placed on the carrier ring, the driving mechanism drives the connecting plate to move, thereby driving the mounting seat to move. The movement of the mounting seat will drive the pressure ring to move and press the semi-finished product against the carrier ring. At this time, the pressing force of the pressure ring on the semi-finished product is achieved by the elastic member pressing the mounting seat. Then, the driving mechanism is driven to drive the rotating shaft to move and rotate to enable the spinning roller to spin the retainer B box. In the present application, when the spinning roller spins the retainer B box, the pressure ring can continuously, reliably and accurately press the semi-finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 2 is a schematic structural diagram of a box-shaped thrust needle roller bearing assembly in an embodiment of the present application; Figure 2 It is a schematic diagram of the overall structure of a box-shaped thrust needle roller bearing assembly spinning device; Figure 3 It is a cross-sectional view of a spinning device for a box-shaped thrust needle roller bearing assembly; Figure 4 It is a schematic diagram used to reflect the structure of the cage body; Figure 5 It is a main cross-sectional view used to reflect the pressure ring and the load-bearing ring; Figure 6 It is a structural diagram of the cage body; Figure 7 It is a cross-sectional view used to reflect the limiter; Figure 8 yes Figure 3 Enlarged view of part A.

[0029] Markings in the accompanying drawings: a, cage A box; b, cage B box; c, needle roller; 1. Driving mechanism; 11. Frame; 12. Driving member; 13. Spline sleeve; 14. Spline shaft; 15. Reciprocating driving member; 16. Linkage arm; 17. Rotating support member; 2. Rotating shaft; 21. First connecting hole; 22. Step portion; 23. Mounting gap; 24. Rotating support member; 3. Retaining frame; 31. Base; 311. Second connecting hole; 312. Second inclined fitting surface; 32. Limiting protrusion; 33. Mounting window; 4. Spinning roller; 5. Bearing seat; 51. Mounting groove; 52. Bearing ring; 53. Guide column; 6. Limiting member; 61. First inclined fitting surface; 7. Mounting seat; 71. Mounting plate; 72. Mounting ring; 8. Pressing ring; 81. Elastic member; 82. Guide sleeve; 83. Elastic member; 84. Limiting column; 85. Mounting hole; 9. Connecting plate; 91. Nut; 92. Rotating connecting member. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below with reference to the accompanying drawings.

[0031] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0032] The present application discloses a spinning device for a box-shaped thrust needle roller bearing assembly, which is used to perform flanging on a retainer B box and ensure consistency in the tightness of each position of the formed flanging structure, thereby ensuring that the subsequent assembly of various parts of the box-shaped thrust needle roller bearing assembly meets the requirements.

[0033] Reference Figure 2 、 Figure 3 and Figure 4 A box-shaped thrust needle roller bearing assembly spinning device includes a driving mechanism 1, which is connected to a rotating shaft 2 and can drive the rotating shaft 2 to rotate and move up and down. The rotating shaft 2 is vertically arranged; the rotating shaft 2 is rotatably connected to a retaining frame 3, and the retaining frame 3 is provided with a plurality of spinning rollers 4. The spinning rollers 4 are inclined to the horizontal plane. In this embodiment, the angle between the axis of the spinning roller 4 and the horizontal plane is 45°. The plurality of spinning rollers 4 are evenly arranged along the circumferential direction of the rotating shaft 2. The retaining frame 3 is used to limit the spinning rollers 4 to contact with the rotating shaft 2. The rotation of the rotating shaft 2 can drive the plurality of spinning rollers 4 to rotate synchronously.

[0034] Reference Figure 3 、 Figure 4 and Figure 5A bearing seat 5 for placing the semi-finished product is provided below the retainer body 3. The driving mechanism 1 can drive the spinning roller 4 to move along the axis of the rotating shaft 2 and to roll along the circumference of the rotating shaft 2 via the rotating shaft 2. Specifically, the bearing seat 5 includes a mounting groove 51 at the upper end. The mounting groove 51 is mounted with a bearing ring 52 for supporting the semi-finished product. The material of the bearing ring 52 is preferably polyethylene with elastic deformation ability.

[0035] First, place the semi-finished product on the carrying ring 52, and then drive the driving mechanism 1 to drive the rotating shaft 2 to move downward until multiple spinning rollers 4 contact the retaining frame B box b, and then drive the driving mechanism 1 to drive the rotating shaft 2 to move downward and rotate at the same time. At this time, the spinning roller 4 will move downward, that is, press the retaining frame B box b, and at the same time, multiple spinning rollers 4 will be driven by the rotating shaft 2 to rotate and roll on the retaining frame B box b, that is, the motion trajectory of the spinning roller 4 during spinning is a spiral line, and the retaining frame B box b will be spun out with a flange.

[0036] It should be noted that: since the retaining frame body 3 is rotatably connected to the rotating shaft 2 and the spinning roller 4 is pressed on the retaining frame B box b by the rotating shaft 2, the retaining frame body 3 will not be subjected to a large force when the spinning roller 4 spins the retaining frame B box b. At this time, the retaining frame body 3 guides the rolling action of the spinning roller 4 on the retaining frame B box b. It is used to ensure the reliability of the rolling and pressing action of the spinning roller 4 to ensure that the spinning roller 4 can achieve uniform pressing on the retaining frame B box b.

[0037] Reference Figure 3 Specifically, the driving mechanism 1 includes a frame 11, the bearing seat 5 is installed on the frame 11, and a driving member 12 is installed on the frame 11. The driving member 12 is a belt transmission member in the embodiment of the present application. The specific structure of the belt transmission member is the prior art and is not described here. Of course, the driving member 12 can also be other power structures that can output rotational motion; the driving member 12 is connected to a spline sleeve 13, and the driving member 12 is used to drive the spline sleeve 13 to rotate. The spline sleeve 13 is rotatably connected to the frame 11, and the spline sleeve 13 is slidably connected to a spline shaft 14 and the spline sleeve 13 can drive the spline shaft 14 to rotate. The spline shaft 14 and the spline sleeve 13 are both vertically arranged. The frame 11 is also provided with a reciprocating drive member 15, which is a cylinder. The reciprocating drive member 15 is fixedly connected to a linkage arm 16. A rotation support member 17 is installed on the spline shaft 14. The rotation support member 17 is connected to the linkage arm 16. The rotation support member 17 is preferably a bearing. The rotation support member 17 limits the linkage arm 16 to be able to rotate relative to the spline shaft 14 and the linkage arm 16 and the spline shaft 14 can move up and down synchronously. The spline shaft 14 is connected to the rotating shaft 2.

[0038] Driving the reciprocating drive member 15 can drive the linkage arm 16 to move up and down thereby drive the spline shaft 14 to move up and down and then drive the rotating shaft 2 to move up and down. And driving the rotating member 12 can drive the spline sleeve 13 to rotate thereby drive the spline shaft 14 to rotate and then drive the rotating shaft 2 to rotate.

[0039] Reference Figure 4 and Figure 6 The retainer body 3 includes a base 31, which has a plurality of limiting protrusions 32 arranged at intervals along its own circumferential direction. An installation window 33 for installing the spinning roller 4 is formed between adjacent limiting protrusions 32. The number of installation windows 33 is consistent with the number of spinning rollers 4. Any adjacent limiting protrusions 32 can confine the middle spinning roller 4 within the installation window 33. The spinning roller 4 can rotate within the installation window 33 and the spinning roller 4 is difficult to separate from the installation window 33 under normal circumstances. The structural design of the installation window 33 is similar to the window design of the retainer in the bearing field. The specific structure of the installation window 33 is existing technology and will not be repeated here.

[0040] Reference Figure 6 and Figure 7 In order to ensure that the retaining frame 3 reliably guides the movement of the multiple spinning rollers 4, a first connecting hole 21 is formed on the rotating shaft 2. The first connecting hole 21 is a blind hole. The base 31 has a second connecting hole 311. The second connecting hole 311 is a through hole. The first connecting hole 21 is detachably connected to a limit member 6. The limit member 6 is inserted into the second connecting hole 311 and limits the position of the retaining frame 3 along the axial direction of the rotating shaft 2. The limit member 6 and the base 31 are loosely fitted to prevent the above-mentioned limitation from affecting the rotation ability of the retaining frame 3. Specifically, the limit member 6 is a limiting bolt. The limit member 6 has a first inclined mating surface 61. The base 31 has a second inclined mating surface 312. The first inclined mating surface 61 is capable of contacting the second inclined mating surface 312. The first inclined mating surface 61 limits the base 31 between the limit member 6 and the rotating shaft 2 along the axial direction of the rotating shaft 2.

[0041] Of course, the tightness of the fit between the stopper 6, base 31, and rotating shaft 2 can be adjusted by rotating the stopper 6. It should be noted that since the base 31 rotates when the rotating shaft 2 drives the spinning roller 4 to roll, in order to prevent the stopper 6 from being misaligned or even falling out due to friction from the base 31, it is necessary to ensure that the rotation direction of the rotating shaft 2 driving the spinning roller 4 and the retaining frame 3 is the tightening direction of the stopper 6.

[0042] Reference Figure 5 and Figure 8, in order to ensure the reliability and accuracy of the position of the semi-finished product when it is spun. The rotating shaft 2 is slidably connected to the mounting seat 7, and the mounting seat 7 can slide vertically. The mounting seat 7 is close to the end of the bearing seat 5 and is equipped with a pressure ring 8 opposite to the bearing ring 52. The pressure ring 8 is also made of polyethylene material with elastic deformation ability. The pressure ring 8 can press the semi-finished product onto the bearing ring 52. The rotating shaft 2 is also rotatably connected to the connecting plate 9, and the connecting plate 9 is located above the mounting seat 7. Specifically, a nut 91 is connected to the rotating shaft 2, and the nut 91 is detachable. The nut 91 is rotatably connected to the connecting plate 9 through a rotating connector 92. The nut 91 is located above the rotating connector 92, and the rotating connector 92 is preferably a bearing. An elastic member 81 is provided between the connecting plate 9 and the mounting seat 7. The elastic member 81 is a spring. The upper end of the elastic member 81 is connected to the connecting plate 9, and the lower end of the elastic member 81 is connected to the mounting seat 7.

[0043] Reference Figure 5 The bearing seat 5 is equipped with a plurality of guide posts 53, which are arranged vertically. The mounting seat 7 is equipped with a plurality of guide sleeves 82, and the guide posts 53 are slidably connected to the guide sleeves 82. An elastic member 83 is provided between the bearing seat 5 and the guide sleeves 82. The elastic member 83 is also a spring. The lower end of the elastic member 83 is connected to the bearing seat 5, and the upper end of the elastic member 83 is connected to the guide sleeve 82. In addition, under normal conditions, the compression force of the elastic member 83 is less than the compression force of the elastic member 81, and the elastic member 83 is more easily compressed than the elastic member 81.

[0044] During the downward movement of the rotating shaft 2, since the compression force of the elastic member 83 is smaller than the compression force of the elastic member 81, the distance between the supporting seat 5 and the mounting seat 7 will first be greatly reduced compared to the distance between the connecting plate 9 and the mounting seat 7, and the elastic member 83 will be greatly compressed compared to the elastic member 83. The mounting seat 7 will drive the pressure ring 8 to move to press the semi-finished product on the supporting ring 52. At this time, the pressing force of the pressure ring 8 on the semi-finished product is achieved by the elastic member 81 pressing the mounting seat 7 and then transmitting it to the pressure ring 8; then continue to move the rotating shaft 2 downward and rotate to realize the spinning of the retaining frame B box b by the spinning roller 4. When the spinning roller 4 is spinning, the pressure ring 8 presses the semi-finished product on the supporting ring 52, the distance between the connecting plate 9 and the mounting seat 7 will become smaller, and the elastic member 81 is greatly compressed.

[0045] In this embodiment, the pressure ring 8 and the supporting ring 52 both have elastic deformation capabilities. When the pressure ring 8 presses the semi-finished product onto the supporting ring 52, although the retainer A box a, the retainer B box b and the multiple needle rollers c are pressed at the same time, the multiple needle rollers c are mainly pressed to ensure that the multiple needle rollers c are difficult to move. The relative positions of the retainer A box a and the retainer B box b are limited based on the limitation of the needle rollers c. Focusing on pressing the needle rollers c can avoid the retainer A box a being misaligned with the retainer B box b due to the force, which may lead to subsequent assembly failures. Compared with the prior art that directly presses the retainer B box b during riveting, the pressing method of the present application not only has fewer dead needles and higher flexibility of the needle rollers c after the spinning is completed, but also makes the tightness of the retainer A box a and the retainer B box b more uniform.

[0046] Reference Figure 4 and Figure 5 In order to control the spinning depth of the spinning roller 4, that is, to control the downward movement distance of the rotating shaft 2, a limiting column 84 is installed on the upper end of the mounting seat 7. The limiting column 84 can abut against the connecting plate 9 to limit the moving distance of the rotating shaft 2. Figure 8 Specifically, a mounting hole 85 is opened on the mounting seat 7, and a limiting column 84 is threadedly connected to the mounting hole 85. The limiting column 84 can be rotated and moved along its own axis, that is, moved up and down. Rotating the limiting column 84 can adjust the distance between the limiting column 84 and the connecting plate 9, thereby adjusting the spinning depth. Figure 3 In addition, a travel switch can also be installed on the mounting seat 7 to coordinate with the stroke of the reciprocating drive member 15 output.

[0047] Reference Figure 8 In order to prevent the rotating shaft 2 from wearing the mounting seat 7, the rotating shaft 2 has a step portion 22, and an installation gap 23 is provided between the end of the mounting seat 7 close to the bearing seat 5 and the step portion 22. A rotating support 24 is installed on the step portion 22 within the installation gap 23, and the rotating support 24 is preferably a bearing.

[0048] When the rotating shaft 2 is running at high speed, it may be difficult to quickly stop the rotating shaft 2 after the spinning roller 4 completes the spinning. In order to ensure the working rhythm, the rotating shaft 2 needs to be quickly reset when the rotating shaft 2 is rotating. The rotating support 24 separates the rotating shaft 2 from the mounting seat 7 to reduce structural wear. In addition, in continuous production, the rotation of the rotating shaft 2 can be continued to perform continuous operation.

[0049] Reference Figure 8 In order to facilitate the replacement or cleaning of the pressure ring 8, the mounting seat 7 includes a mounting plate 71 connected to the guide sleeve 82 and a mounting ring 72. The pressure ring 8 is installed at the lower end of the mounting ring 72, and the mounting ring 72 is connected to the mounting plate 71 by a countersunk screw.

[0050] For flanging processing of other types of bearings, since the spinning roller 4 is set at an angle, it can adapt to bearings of most sizes, so generally only the spinning depth, that is, the position of the limit column 84, needs to be adjusted. Of course, the retaining frame 3 and the spinning roller 4 can also be disassembled and replaced.

[0051] The implementation principle of a box-shaped thrust needle roller bearing assembly spinning device in the embodiment of the present application is as follows: First, the semi-finished product is placed on the carrier ring 52, and then the reciprocating drive member 15 is driven to move the spline shaft 14 downward, thereby driving the rotating shaft 2 downward. During the downward movement of the rotating shaft 2, the elastic member 83 is greatly compressed, and the mounting seat 7 drives the pressure ring 8 to move to press the semi-finished product onto the carrier ring 52. Then, the elastic member 81 is compressed, and the multiple spinning rollers 4 contact the cage B box b; The driving member 12 drives the spline sleeve 13 to rotate, thereby driving the spline shaft 14 to rotate, and at the same time drives the reciprocating driving member 15 to drive the spline shaft 14 to move downward. At this time, the elastic member 81 is greatly compressed, and the multiple spinning rollers 4 will spin the cage B box b; After the spinning is completed, the reciprocating drive member 15 is driven to reset the rotating shaft 2.

[0052] The present application also provides a spinning method applied to a box-shaped thrust needle roller bearing assembly spinning device, comprising the following steps: S1. Place the semi-finished product on the bearing seat 5, drive the reciprocating drive member 15 to slowly move the rotating shaft 2 downward, the pressing ring 8 will first press the semi-finished product onto the bearing ring 52, and then the spinning roller 4 will move to contact the cage B box b; In addition, the driving member 12 can be directly started to drive the rotating shaft 2 to rotate so as to drive the spinning roller 4 to rotate.

[0053] S2, drive the reciprocating drive member 15 and the rotating member 12 to drive the rotating shaft 2 to rotate and move at the same time, thereby driving the spinning roller 4 to roll on the retaining frame B box b and driving the spinning roller 4 to press the retaining frame B box b. The spinning action continues until the connecting plate 9 stops at the limit column 84. At this time, the retaining frame B box b will be spun out with a 45° flange, and the spinning of the retaining frame B box b is completed.

[0054] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A box-shaped thrust needle roller bearing assembly spinning device, characterized in that: The invention comprises a driving mechanism (1), wherein the driving mechanism (1) is connected to a rotating shaft (2) and can drive the rotating shaft (2) to rotate and move; the rotating shaft (2) is rotatably connected to a retaining frame (3), and a spinning roller (4) is provided on the retaining frame (3); the retaining frame (3) is used to limit the spinning roller (4) to contact with the rotating shaft (2); and the rotation of the rotating shaft (2) can drive the spinning roller (4) to rotate; A bearing seat (5) is provided on one side of the retaining frame body (3), and the driving mechanism (1) can drive the spinning roller (4) to move along the axial direction of the rotating shaft (2) and drive the spinning roller (4) to roll along the circumferential direction of the rotating shaft (2) through the rotating shaft (2).

2. The box-shaped thrust needle roller bearing assembly spinning device according to claim 1, characterized in that: The bearing seat (5) comprises a mounting groove (51) at an end portion, wherein the mounting groove (51) is provided with a bearing ring (52) for supporting the semi-finished product; The rotating shaft (2) is slidably connected to a mounting seat (7), and a pressure ring (8) opposite to the bearing ring (52) is installed on one end of the mounting seat (7) close to the bearing seat (5); the rotating shaft (2) is also rotatably connected to a connecting plate (9), and the connecting plate (9) is located on a side of the mounting seat (7) away from the bearing seat (5). An elastic member (81) is provided between the connecting plate (9) and the mounting seat (7), and one end of the elastic member (81) is connected to the connecting plate (9), and the other end is connected to the mounting seat (7).

3. The box-shaped thrust needle roller bearing assembly spinning device according to claim 2, characterized in that: A guide column (53) is installed on the bearing seat (5), a guide sleeve (82) is installed on the mounting seat (7), and the guide column (53) is slidably connected to the guide sleeve (82); an elastic member (83) is provided between the bearing seat (5) and the guide sleeve (82), one end of the elastic member (83) is connected to the bearing seat (5), and the other end is connected to the guide sleeve (82); The elastic member (81) and the elastic member (83) are both springs, and the compression force of the elastic member (83) is smaller than the compression force of the elastic member (81).

4. The box-shaped thrust needle roller bearing assembly spinning device according to claim 2, characterized in that: A limiting column (84) is installed at one end of the mounting seat (7) close to the connecting plate (9), and the limiting column (84) can abut against the connecting plate (9) to limit the moving distance of the rotating shaft (2).

5. The box-shaped thrust needle roller bearing assembly spinning device according to claim 4, characterized in that: The mounting seat (7) is provided with a mounting hole (85), the limiting column (84) is threadedly connected to the mounting hole (85), and the limiting column (84) can be rotated and moved along its own axis direction.

6. The box-shaped thrust needle roller bearing assembly spinning device according to claim 2, characterized in that: The rotating shaft (2) has a step portion (22), an installation gap (23) is provided between the end of the mounting seat (7) close to the bearing seat (5) and the step portion (22), and a rotating support member (24) is installed on the step portion (22) in the installation gap (23).

7. The box-shaped thrust needle roller bearing assembly spinning device according to any one of claims 1 to 6, characterized in that: The rotating shaft (2) is provided with a first connecting hole (21), the retaining frame body (3) has a second connecting hole (311), the first connecting hole (21) is detachably connected to a limiting member (6), the limiting member (6) is passed through the second connecting hole (311), and the limiting member (6) limits the position of the retaining frame body (3) in the axial direction of the rotating shaft (2).

8. The box-shaped thrust needle roller bearing assembly spinning device according to any one of claims 1 to 6, characterized in that: The retaining frame body (3) includes a base (31), and the base (31) has a plurality of spaced limiting protrusions (32) arranged along its own circumferential direction. An installation window (33) for installing a spinning roller (4) is formed between adjacent limiting protrusions (32). The limiting protrusions (32) can confine the spinning roller (4) within the installation window (33).

9. The box-shaped thrust needle roller bearing assembly spinning device according to any one of claims 1 to 6, characterized in that: The driving mechanism (1) comprises a frame (11), a driving member (12) is mounted on the frame (11), the driving member (12) is connected to a spline sleeve (13), and the driving member (12) is used to drive the spline sleeve (13) to rotate, the spline sleeve (13) is rotatably connected to the frame (11), the spline sleeve (13) is slidably connected to a spline shaft (14), and the spline sleeve (13) can drive the spline shaft (14) to rotate; the frame (11) is also provided with a reciprocating driving member (15), the reciprocating driving member (15) is connected to a linkage arm (16), a rotation support member (17) is installed on the spline shaft (14), the rotation support member (17) is connected to the linkage arm (16), the linkage arm (16) can drive the linkage arm (16) to reciprocate along the axial direction of the spline shaft (14) through the rotation support member (17), and the spline shaft (14) can rotate relative to the linkage arm (16); the spline shaft (14) is connected to the rotating shaft (2).

10. A spinning method applied to the spinning device for a box-shaped thrust needle roller bearing assembly according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1. Place the semi-finished product on the bearing seat (5), and drive the driving mechanism (1) to move the rotating shaft (2) until the spinning roller (4) abuts against the retainer B box (b); S2. The driving mechanism (1) drives the rotating shaft (2) to rotate and move simultaneously, thereby driving the spinning roller (4) to roll on the retaining frame B box (b) and driving the spinning roller (4) to press the retaining frame B box (b) to complete the spinning of the retaining frame B box (b).

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