Online riveting press for conical bearing inner assembly

Abstract

The invention relates to the field of conical bearing inner assembly riveting, in particular to a conical bearing inner assembly online riveting press which comprises a workbench, a riveting press die and a riveting press device, the riveting press device is installed on the upper portion of the plate face of the workbench, the riveting press die is fixed to the center of the workbench, a forming opening is formed in the riveting press die, and the riveting press die is fixed to the workbench. The riveting device comprises an end face pressing die, the end face pressing die slides up and down above the riveting die, and the forming opening is used for a workpiece to be embedded in. The riveting die is fixed on the workbench, and the end face pressing die sliding up and down and the forming opening in the riveting die are used for cooperating, so that rapid and accurate positioning and automatic riveting of a workpiece (a conical bearing inner assembly) are achieved, and the consistency of the axial lead of the inner assembly and the riveting force direction in the riveting process is effectively guaranteed; therefore, the stability of riveting quality and the qualified rate of products are remarkably improved, and meanwhile the production efficiency is greatly improved.

Description

Technical Field

[0001] This application relates to the field of riveting of internal components of tapered bearings, and in particular to an online riveting machine for internal components of tapered bearings. Background Technology

[0002] Tapered roller bearings are crucial basic components in mechanical equipment, and their performance directly affects the working accuracy, reliability, and lifespan of the host machine. Among the many technical indicators of tapered roller bearings, the axial runout of the internal components is one of the most critical design and control parameters. The magnitude of this parameter determines the bearing's rotational accuracy, operational smoothness, and load-bearing capacity. Excessive runout will cause abnormal vibration and noise in the bearing, accelerating wear; insufficient runout may cause overheating and seizure. Therefore, precisely controlling the axial runout of the internal components within the design tolerance range is key to ensuring high bearing quality.

[0003] The control of internal component movement is mainly achieved through the riveting process of the small end of the cage, which causes the cage to shrink. This process involves precisely positioning the internal component in the riveting die, then applying an axial downward force to the large end face of the cage, causing the small end of the cage to shrink within the riveting die. This, in turn, determines the radial movement of the roller within the cage aperture. A crucial prerequisite for achieving stable and qualified riveting quality is precise and reliable positioning of the internal component within the riveting die. Only when the cage rib surface of the internal component is completely in contact with the rib surface of the riveting die, and no part of the riveting die comes into contact with the roller, can uniform force be guaranteed during riveting, thus achieving precise movement.

[0004] However, under traditional manual riveting methods, the aforementioned precise positioning requirements are difficult to meet effectively. Operators need to manually place the internal components on the riveting machine mold and repeatedly adjust their position to achieve alignment. This process often consumes a significant amount of time, leading to low production efficiency and becoming a bottleneck for capacity expansion. More seriously, the accuracy and consistency of manual positioning are extremely poor, relying heavily on the operator's experience and sense of responsibility; even slight carelessness can lead to positioning deviations. These deviations not only cause excessive movement of the riveted internal components, resulting in batch quality accidents, but also pose a significant risk of damage to the cage or rollers due to misaligned component placement, leading to part scrap and increased production costs. Summary of the Invention

[0005] To improve the riveting efficiency of tapered roller bearings, this application provides an online riveting machine for internal components of tapered roller bearings.

[0006] The online riveting machine for inner components of tapered bearings provided in this application adopts the following technical solution: An online riveting machine for inner components of tapered bearings includes a worktable, a riveting die, and a riveting device. The riveting device is installed on the upper part of the worktable. The riveting die is fixed at the center of the worktable and has a forming opening. The riveting device includes an end face die that slides up and down above the riveting die. The forming opening is used for inserting workpieces.

[0007] By adopting the above technical solution, by fixing the riveting die on the worktable and utilizing the synergistic effect of the sliding end face die and the forming opening on the riveting die, the workpiece (inner component of the tapered bearing) can be quickly and accurately positioned and automatically riveted. This effectively ensures the consistency between the axis of the inner component and the direction of the riveting force during the riveting process, thereby significantly improving the stability of the riveting quality and the product qualification rate, while also greatly increasing production efficiency.

[0008] Preferably, the riveting device further includes a fixed plate, a column, a booster cylinder, a threaded sleeve, and an adjusting screw. The fixed plate is fixedly connected to the upper end of the workbench via the column. The fixed plate is provided with a clearance hole. The cylinder body of the booster cylinder is fixedly connected to the fixed plate. The piston rod of the booster cylinder passes through the clearance hole and is fixedly connected to the threaded sleeve. The adjusting screw is threadedly connected to the internal thread of the threaded sleeve. The lower end of the adjusting screw is coaxially fixedly connected to the end face pressing mold.

[0009] By adopting the above technical solution, a stable and powerful riveting force is provided by a booster cylinder, and a precision threaded pair consisting of a screw sleeve and an adjusting screw is used to achieve fine adjustment and locking of the final stroke position of the end face die. This allows for precise control of the riveting depth and force, ensuring the consistency of riveting quality for each product and effectively meeting the high-precision control requirements of the tapered bearing internal components for axial movement.

[0010] Preferably, it also includes a transfer component, which includes a transverse cylinder, a connecting frame, a clamping cylinder, and a clamping block. The cylinder body of the transverse cylinder is fixedly connected to the upper end of the worktable, and the slider of the transverse cylinder is fixedly connected to the connecting frame. The transverse cylinder is used to control the horizontal sliding of the connecting frame. The cylinder body of the clamping cylinder is fixedly connected to the connecting frame, and the piston rod of the clamping cylinder is fixedly connected to the clamping block.

[0011] By adopting the above technical solution, the horizontal reciprocating motion of the connecting frame and clamping mechanism is realized by the transverse cylinder, which accurately moves the workpiece to be placed directly above the riveting die. The clamping block driven by the clamping cylinder can reliably clamp and release the workpiece, thereby realizing the fully automatic and precise transfer of the workpiece, replacing manual operation. This not only greatly improves the production cycle and efficiency, but also fundamentally avoids the positioning inaccuracies and safety risks caused by manual intervention.

[0012] Preferably, the transfer component further includes a positioning mold, which is disposed between two clamping blocks. There are two positioning molds, and each positioning mold is corresponding to one of the clamping blocks. The positioning mold is fixedly connected to the clamping blocks. The end of the positioning mold facing away from the clamping blocks is provided with an abutment surface. The abutment surface includes a mounting surface and an arc surface. The arc surface is located on the side of the mounting surface near the cylinder body of the clamping cylinder. The arc surface and the mounting surface are smoothly transitioned. The mounting surface is provided with a positioning groove for the inner component roller to be embedded. The arc surface is used for the inner component roller to abut.

[0013] By adopting the above technical solution, the contact surface of the positioning mold is optimized into a composite surface consisting of a mounting surface with a positioning groove and a smoothly transitioning arc surface. During the clamping process, the rollers of the inner components can first contact the arc surface and slide into the guide along it, and finally accurately embed into the positioning groove of the mounting surface. This achieves progressive guidance and precise positioning of the rollers, effectively avoiding damage to the roller surface caused by hard impacts. At the same time, it ensures the consistency of the position of all rollers in the circumferential and radial directions, providing a stable and reliable positioning reference for the subsequent riveting process, and greatly improving the processing quality and pass rate of the product.

[0014] Preferably, there are multiple positioning grooves, which are evenly spaced along the extension direction of the mounting surface and are circumferentially distributed.

[0015] By adopting the above technical solution, and by setting multiple positioning grooves at uniform intervals around the mounting surface, a precision positioning array that perfectly matches the distribution of the inner component's rollers is constructed. This ensures that all the rollers of the inner component are evenly embedded in their respective positioning grooves, thereby achieving precise constraint and synchronous positioning of the entire inner component around the circumference. This effectively prevents misalignment or uneven force on individual rollers, greatly improves the posture stability and positioning consistency of the inner component during riveting, and fundamentally guarantees the processing accuracy and product quality of riveting shrinkage.

[0016] Preferably, when the two positioning molds clamp the inner component, the diameter of the circle at the bottom of the positioning groove is equal to the diameter of the circle at the large end of the inner component's roller - a first preset value.

[0017] By adopting the above technical solution, the diameter of the circle at the bottom of the positioning groove is set to be slightly smaller than the diameter of the circle at the large end of the inner component roller, so that a precise micro-interference fit is formed between the positioning groove and the roller. This ensures that when clamping, all rollers are uniformly subjected to a small pre-tightening force in the circumference, thereby achieving strong circumferential constraint and precise centering of the inner component. This effectively eliminates the fit gap between the roller and the positioning groove, and prevents the inner component from slight rotation or displacement that may occur before and during riveting. This provides extremely high angular certainty and radial stability for the final riveting shrinkage process.

[0018] Preferably, when the two positioning molds clamp the inner component, the diameter of the circle containing the mounting surface is equal to the outer diameter of the large end of the inner component retainer plus a second preset value.

[0019] By adopting the above technical solution, the diameter of the circle containing the two mounting surfaces in the clamping state is set to be slightly larger than the outer diameter of the large end of the inner component cage. This forms a precise radial positioning gap between the mounting surface of the positioning mold and the outer wall of the cage, achieving non-contact radial positioning of the cage. This ensures that the clamping force is directly and effectively transmitted to the core force-bearing part of the inner ring through the rollers, avoiding deformation or damage to the cage due to direct pressure. It also provides room for thermal expansion or minor manufacturing tolerances of the cage during the clamping process. Thus, while achieving precise positioning, it perfectly protects the cage, a delicate and fragile component.

[0020] Preferably, it also includes a conveying component, which includes a conveyor belt. The conveying direction of the conveyor belt is horizontal and perpendicular to the sliding direction of the clamping block. The conveyor belt is used to convey the inner component to the inner component roller abutting arc surface.

[0021] By adopting the above technical solution, the inner component can be automatically and continuously conveyed to the predetermined position, ensuring that its rollers can accurately abut against the guide arc surface of the positioning mold. The conveyor belt gives the inner component a forward force, and the clamping action of the clamping cylinder gives the inner component a backward force. Under the action of the front and rear forces, the inner component rollers roll into the positioning groove along the edge of the arc surface, close to the arc surface, thus completing the positioning. This achieves full automation from feeding and guiding to initial positioning, completely replacing manual placement. It not only greatly improves production efficiency, but also eliminates the uncertainty of human operation through the repeatability accuracy of mechanical positioning, providing a stable and reliable guarantee for subsequent precise clamping and riveting.

[0022] Preferably, the transfer component further includes a buffer damper, and multiple buffer dampers are provided, with the multiple buffer dampers respectively located on both sides of the connecting frame, and the buffer dampers are used to abut against the connecting frame.

[0023] By adopting the above technical solution and setting multiple buffer dampers on both sides of the connecting frame's movement path, the inertial kinetic energy of the connecting frame can be effectively absorbed and dissipated through non-rigid contact when the transverse cylinder drives the connecting frame to the end of its stroke, achieving smooth and shock-free deceleration and stopping. This not only significantly reduces equipment operating noise and vibration and avoids workpiece displacement or damage due to sudden stops, but also greatly extends the service life of key moving parts such as transverse cylinders and guide rails.

[0024] Preferably, it also includes a control component, which includes a controller, a bracket, and a material proximity switch. The upper end of the worktable is provided with a feeding area. The transfer component is used to transfer the workpiece in the feeding area to the top of the riveting die. The bracket is fixedly connected to the upper end of the worktable. The material proximity switch is fixedly connected to the bracket. The material proximity switch is located directly above the feeding area. The material proximity switch is electrically connected to the controller and the clamping cylinder.

[0025] By adopting the above technical solution, a material proximity switch electrically connected to the controller is installed on the bracket above the material area, which can automatically detect whether there are workpieces to be processed in the material area. When material is detected, the controller will send a command to the clamping cylinder to execute the automatic clamping and subsequent transfer process. Otherwise, the equipment will be put into standby mode, thereby realizing the fully automated intelligent control of the entire process from material detection to gripping and transfer. This effectively avoids the equipment from idling or malfunctioning, and further improves the automation level and operational reliability of the whole machine.

[0026] In summary, this application includes at least one of the following beneficial technical effects: By fixing the riveting die on the worktable and utilizing the synergistic effect of the sliding end face die and the forming opening on the riveting die, the workpiece (inner component of the tapered bearing) can be quickly and accurately positioned and automatically riveted. This effectively ensures the consistency between the axis of the inner component and the direction of the riveting force during the riveting process, thereby significantly improving the stability of the riveting quality and the product qualification rate, while also greatly increasing production efficiency. The horizontal reciprocating motion of the connecting frame and clamping mechanism is achieved by the transverse cylinder, which accurately moves the workpiece to be placed directly above the riveting die. The clamping block driven by the clamping cylinder can reliably clamp and release the workpiece, thereby realizing the fully automatic and precise transfer of the workpiece, replacing manual operation. This not only greatly improves the production cycle and efficiency, but also fundamentally avoids the positioning inaccuracies and safety risks caused by manual intervention. By optimizing the contact surface of the positioning mold into a composite surface consisting of a mounting surface with a positioning groove and a smoothly transitioning arc surface, the rollers of the inner components can first contact the arc surface and slide into the guide during the clamping process, and finally accurately embed into the positioning groove of the mounting surface. This achieves progressive guidance and precise positioning of the rollers, effectively avoiding damage to the roller surface caused by hard impacts, while ensuring the positional consistency of all rollers in the circumferential and radial directions. This provides a stable and reliable positioning reference for subsequent riveting processes, greatly improving the processing quality and pass rate of the products. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an online riveting machine for the internal components of a tapered bearing.

[0028] Figure 2It is a sectional view of the workbench, riveting die, riveting device, feeding assembly, and unloading assembly.

[0029] Figure 3 This is a schematic diagram of the overall structure of the workbench, riveting die, feeding assembly, and unloading assembly.

[0030] Figure 4 This is a schematic diagram of the overall structure of the transfer component.

[0031] Figure 5 This is a schematic diagram of the overall structure of the clamping cylinder, clamping block, and positioning mold.

[0032] Figure 6 It is a schematic diagram of the overall structure of the workbench, riveting die, riveting device, feeding assembly, unloading assembly and control assembly.

[0033] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Lower frame; 111. Frame body; 112. Support leg; 113. Foot pad; 12. Upper cover; 2. Workbench; 21. Mounting slot; 22. Conveying port; 23. Top material port; 3. Riveting mold; 31. Forming port; 4. Riveting device; 41. Fixing plate; 4111. Clearance hole; 4112. Guide port; 412. Column; 42. Pressure booster cylinder; 43. Screw sleeve; 44. Guide rod; 45. Support plate; 451. Fixing port; 46. Adjusting screw; 47. End face pressing mold; 5. Feeding assembly; 51. Conveying component; 511. Conveying roller; 512. Conveying belt; 513. Conveying motor; 514. 52. Material guide plate; 52. Transfer component; 521. Lateral movement cylinder; 522. Guide rail; 523. Connecting frame; 5231. Slide groove; 524. Clamping cylinder; 525. Clamping block; 526. Positioning mold; 5261. Abutment surface; 5262. Mounting surface; 5263. Arc surface; 5264. Positioning groove; 527. Buffer damper; 6. Unloading assembly; 61. Unloading cylinder; 62. Unloading mold; 7. Control assembly; 71. Control box; 711. Controller; 72. Bracket; 73. Material proximity switch; 74. First proximity switch; 75. Detection plate; 76. Upright pole; 77. Second proximity switch; 78. Third proximity switch. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0035] This application discloses an online riveting machine for the inner components of a tapered bearing. (Refer to...) Figure 1 and Figure 2 An online riveting machine for inner components of tapered bearings includes a frame 1, a worktable 2, a riveting die 3, a riveting device 4, a feeding assembly 5, a stripping assembly 6, and a control assembly 7.

[0036] The frame 1 includes a lower frame 11 and an upper cover 12. The lower frame 11 includes a frame 111, legs 112, and feet 113. The upper ends of the legs 112 are fixedly connected to the lower ends of the frame 111, and the lower ends of the legs 112 are fixedly connected to the feet 113. The lower ends of the feet 113 abut against the ground. There are four legs 112, which are located near the four corners of the frame 111. There are also four feet 113, which are arranged one-to-one with the legs 112. The worktable 2 is fixedly connected to the upper end of the frame 111, and the upper cover 12 is fixedly connected to the upper end of the worktable 2. The upper end of the worktable 2 is provided with a mounting groove 21. The riveting mold 3 is fixedly connected to the bottom of the mounting groove 21 by screws. The riveting mold 3 is provided with a forming opening 31, which penetrates the riveting mold 3 and is used for inserting workpieces.

[0037] Reference Figure 2 The riveting device 4 includes a fixed plate 41, a column 412, a booster cylinder 42, a threaded sleeve 43, a guide rod 44, a support plate 45, an adjusting screw 46, and an end face pressing mold 47. The upper end of the column 412 is fixedly connected to the fixed plate 41, and the lower end of the column 412 is fixedly connected to the worktable 2. There are four columns 412, which are respectively located near the four corners of the fixed plate 41. The fixed plate 41 is provided with a clearance hole 4111. The cylinder body of the booster cylinder 42 is fixedly connected to the upper end of the fixed plate 41, and the piston rod of the booster cylinder 42 passes through the clearance hole 4111 and is fixedly connected to one end of the threaded sleeve 43. The fixing plate 41 is provided with a guide opening 4112. The guide rod 44 is slidably connected to the inner wall of the guide opening 4112. There are two guide openings 4112, which are respectively located on both sides of the clearance hole 4111. The distances from the two guide openings 4112 to the clearance hole 4111 are equal. The lower end of the guide rod 44 is fixedly connected to the support plate 45. The support plate 45 is provided with a fixing opening 451. The threaded sleeve 43 is coaxially fixedly connected to the inner wall of the fixing opening 451. The adjusting screw 46 is threadedly connected to the inner wall of the threaded sleeve 43. The lower end of the adjusting screw 46 is coaxially fixedly connected to the end face pressing mold 47. The end face pressing mold 47 is located directly above the riveting mold 3.

[0038] Reference Figure 3The feeding assembly 5 includes a conveyor 51 and a transfer component 52. The conveyor 51 is located near the edge of the workbench 2, and the upper end of the workbench 2 has a feeding area. The conveyor 51 is used to transport workpieces to the feeding area. The conveyor 51 includes a conveyor roller 511, a conveyor belt 512, a conveyor motor 513, and a feed channel plate 514. The upper end of the workbench 2 has a conveying port 22. The conveyor roller 511 is rotatably connected to the inner wall of the conveying port 22 around its own axis. There are two conveyor rollers 511, which are respectively located at both ends of the length direction of the conveying port 22. The rotation axis of the conveyor roller 511 is horizontal and perpendicular to the length direction of the conveying port 22. The conveyor belt 512 is sleeved on the outer circumference of the two conveyor rollers 511. The motor housing of the conveyor motor 513 is fixedly connected to the outer wall of the workbench 2, and the motor shaft of the conveyor motor 513 is coaxially fixedly connected to one of the conveyor rollers 511. There are two material guide plates 514, which are respectively located on both sides of the conveyor belt 512. One end of the material guide plate 514 is fixedly connected to the upper end of the workbench 2 by bolts, and the other end of the material guide plate 514 is located above the conveyor belt 512. The two material guide plates 514 are used to limit the conveying of the workpiece.

[0039] Reference Figure 3 and Figure 4 The transfer component 52 is used to transfer the workpieces on the loading area to the top of the riveting mold 3. The transfer component 52 includes a transverse cylinder 521, a guide rail 522, a connecting frame 523, a clamping cylinder 524, a clamping block 525, a positioning mold 526, and a buffer damper 527. The guide rail 522 and the transverse cylinder 521 are respectively located on both sides of the mounting groove 21. The cylinder body of the transverse cylinder 521 is fixedly connected to the upper end of the worktable 2, and the slider of the transverse cylinder 521 is fixedly connected to the connecting frame 523. The guide rail 522 is fixedly connected to the top of the worktable 2. The lower end of the connecting frame 523 is provided with a sliding groove 5231. The guide rail 522 is slidably connected to the groove wall of the sliding groove 5231. The length direction of the guide rail 522 is parallel to the length direction of the transverse cylinder 521 and parallel to the length direction of the conveyor belt 512.

[0040] Reference Figure 4 and Figure 5The clamping cylinder 524 is a pneumatic gripper. The cylinder body of the clamping cylinder 524 is fixedly connected to the connecting frame 523. The piston rod of the clamping cylinder 524 is fixedly connected to the clamping block 525. There are two clamping blocks 525. The positioning mold 526 is located between the two clamping blocks 525. There are two positioning molds 526, and each positioning mold 526 corresponds to one of the clamping blocks 525. The positioning mold 526 is fixedly connected to the clamping block 525 and is positioned away from the clamping block 525. One end of the holding block 525 is designated as an abutment surface 5261. The abutment surface 5261 includes a mounting surface 5262 and an arc surface 5263. The arc surface 5263 is located on the side of the mounting surface 5262 near the cylinder body of the clamping cylinder 524. The arc surface 5263 and the mounting surface 5262 transition smoothly. The mounting surface 5262 is provided with positioning grooves 5264. The positioning grooves 5264 are used for the inner component rollers to be embedded, and the arc surface 5263 is used for the inner component rollers to abut. Multiple positioning grooves 5264 are provided, and the multiple positioning grooves 5264 are evenly spaced along the extension direction of the mounting surface 5262 and are circumferentially distributed.

[0041] Reference Figure 5 When the two positioning molds 526 clamp the inner component, the diameter of the circle at the bottom of the positioning groove 5264 is equal to the diameter of the circle at the large end of the inner component roller - X1, where X1 is the first preset value; the diameter of the circle at the mounting surface 5262 is equal to the outer diameter of the large end of the inner component retainer + X2, where X2 is the second preset value; the radius of the arc surface 5263 is equal to one-third of the diameter of the circle at the bottom of the positioning groove 5264 ± X3, where X3 is the third preset value; the radius of the positioning groove 5264 is equal to the width of the window hole of the inner component retainer + X4, where X4 is the fourth preset value; the value range of X1 is 0.1-0.6mm, the value range of X2 is 0.1-0.6mm, the value range of X3 is 0.1-0.6mm, and the value range of X4 is 1-3mm. The values ​​of X1, X2, and X3 can be equal or unequal.

[0042] Reference Figure 4 There are four buffer dampers 527. All four buffer dampers 527 are located on the outer periphery of the connecting frame 523. The four buffer dampers 527 are located on both sides of the connecting frame 523. The two buffer dampers 527 located on the same side are located close to the two ends of the connecting frame 523 in the length direction. The buffer dampers 527 are used to abut against the two ends of the connecting frame 523 in the width direction.

[0043] Reference Figure 2 The stripping assembly 6 includes a stripping cylinder 61 and a stripping mold 62. The lower end of the worktable 2 is provided with a top material port 23, which is connected to the forming port 31. The stripping mold 62 is slidably connected to the inner wall of the top material port 23. The cylinder of the stripping cylinder 61 is fixedly connected to the lower end of the worktable 2, and the piston rod of the stripping cylinder 61 is fixedly connected to the stripping mold 62.

[0044] Reference Figure 1 and Figure 6 The control assembly 7 includes a control box 71, a bracket 72, a material proximity switch 73, a first proximity switch 74, a detection plate 75, a pole 76, a second proximity switch 77, and a third proximity switch 78. The control box 71 is fixedly connected to the upper cover 12. The control box 71 contains a controller 711. The outer wall of the control box 71 is provided with a state transition button, a start button, a stop button, and a reset button. The state transition button, start button, stop button, and reset button are all electrically connected to the controller 711.

[0045] The controller 711 is electrically connected to the booster cylinder 42, the conveyor motor 513, the transverse cylinder 521, the drive cylinder 5241, the unloading cylinder 61, the material proximity switch 73, the first proximity switch 74, the second proximity switch 77, and the third proximity switch 78. The bracket 72 is located on one side of the conveyor belt 512 and is fixedly connected to the upper end of the workbench 2. The material proximity switch 73 is fixedly connected to the bracket 72 and is located directly above the loading area. The first proximity switch 74 is located on the side of the guide rail 522 away from the transverse cylinder 521. The first proximity switch 74 is detachably connected to the upper end of the workbench 2 by screws. There are two first proximity switches 74, one near each end of the guide rail 522. The first proximity switches 74 are used to detect the position of the connecting frame 523. The detection plate 75 is fixedly connected to the outer wall of the guide rod 44, the upright rod 76 is fixedly connected to the upper end of the fixed plate 41, and the second proximity switch 77 and the third proximity switch 78 are both fixedly connected to the upright rod 76. The height of the third proximity switch 78 is greater than the height of the second proximity switch 77. The second proximity switch 77 and the third proximity switch 78 are used to detect the position of the detection plate 75.

[0046] The implementation principle of the online riveting machine for inner components of tapered bearings in this application embodiment is as follows: When the first proximity switch 74 detects that the lateral movement cylinder 521 drives the connecting frame 523 to move above the riveting die 3, the clamping cylinder 524 is released, allowing the workpiece to fall onto the riveting die 3. Then, the stripping cylinder 61 controls the stripping die 62 to move downwards, and the lateral movement cylinder 521 drives the clamping cylinder 524 to return to its original position. After the lateral movement cylinder 521 returns to its original position, the booster cylinder 42 starts working, driving the end face die 47 to move downwards. The end face die 47 presses the workpiece into the forming opening 31. After the end face die 47 moves to its position, the second proximity switch 77 lights up and transmits a signal to the controller 711. The controller 711 then sends a signal to the booster cylinder 42. 2. Issue a command to stop the pressing operation and instruct the booster cylinder 42 to return to its original position. The third proximity switch 78 lights up. At this time, the riveting and tightening operation of the inner component retainer is completed. After the booster cylinder 42 returns to its original position, the controller 711 issues a command to the stripping cylinder 61. The stripping cylinder 61 works and drives the stripping die 62 to rise. The stripping die 62 rises against the small end of the workpiece, and the workpiece is removed from the riveting die 3. The workpiece is removed from the riveting die 3 after riveting. The conveyor belt 512 transports the workpiece to the loading area. When the material proximity switch 73 detects that the workpiece has arrived at the loading area, the conveyor motor 513 stops transporting, the clamping cylinder 524 clamps the workpiece, and the transverse cylinder 521 drives the workpiece to move upwards towards the riveting die 3.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An online riveting machine for inner components of tapered bearings, characterized in that: The device includes a workbench (2), a riveting die (3), and a riveting device (4). The riveting device (4) is installed on the upper part of the workbench (2). The riveting die (3) is fixed at the center of the workbench (2). The riveting die (3) is provided with a forming opening (31). The riveting device (4) includes an end face die (47). The end face die (47) slides up and down above the riveting die (3). The forming opening (31) is used for embedding the workpiece.

2. The online riveting machine for inner components of a tapered bearing according to claim 1, characterized in that: The riveting device (4) further includes a fixed plate (41), a column (412), a booster cylinder (42), a screw sleeve (43), and an adjusting screw (46). The fixed plate (41) is fixedly connected to the upper end of the workbench (2) through the column (412). The fixed plate (41) is provided with a clearance hole (4111). The cylinder body of the booster cylinder (42) is fixedly connected to the fixed plate (41). The piston rod of the booster cylinder (42) passes through the clearance hole (4111) and is fixedly connected to the screw sleeve (43). The adjusting screw (46) is threadedly connected to the internal thread of the screw sleeve (43). The lower end of the adjusting screw (46) is coaxially fixedly connected to the end face pressing mold (47).

3. The online riveting machine for inner components of a tapered bearing according to claim 1, characterized in that: It also includes a transfer component (52), which includes a transverse cylinder (521), a connecting frame (523), a clamping cylinder (524), and a clamping block (525). The cylinder body of the transverse cylinder (521) is fixedly connected to the upper end of the worktable (2), and the slider of the transverse cylinder (521) is fixedly connected to the connecting frame (523). The transverse cylinder (521) is used to control the horizontal sliding of the connecting frame (523). The cylinder body of the clamping cylinder (524) is fixedly connected to the connecting frame (523), and the piston rod of the clamping cylinder (524) is fixedly connected to the clamping block (525).

4. The online riveting machine for inner components of a tapered bearing according to claim 3, characterized in that: The transfer component (52) further includes a positioning mold (526), ​​which is disposed between two clamping blocks (525). Two positioning molds (526) are provided, each corresponding to one of the clamping blocks (525). The positioning mold (526) is fixedly connected to the clamping block (525). One end of the positioning mold (526) facing away from the clamping block (525) has an abutment surface (5261). 1) Includes a mounting surface (5262) ​​and an arc surface (5263). The arc surface (5263) is located on the side of the mounting surface (5262) ​​near the cylinder body of the clamping cylinder (524). The arc surface (5263) and the mounting surface (5262) ​​are smoothly transitioned. The mounting surface (5262) ​​is provided with a positioning groove (5264). The positioning groove (5264) is used for the inner component roller to be embedded. The arc surface (5263) is used for the inner component roller to abut.

5. The online riveting machine for inner components of a tapered bearing according to claim 4, characterized in that: The positioning groove (5264) is provided in multiple ways. The multiple positioning grooves (5264) are evenly spaced along the extension direction of the mounting surface (5262) ​​and are circumferentially distributed.

6. The online riveting machine for inner components of a tapered bearing according to claim 5, characterized in that: When the two positioning molds (526) clamp the inner component, the diameter of the circle at the bottom of the positioning groove (5264) is equal to the diameter of the circle at the large end of the inner component roller - the first preset value.

7. The online riveting machine for inner components of a tapered bearing according to claim 6, characterized in that: When the two positioning molds (526) clamp the inner component, the diameter of the circle containing the mounting surface (5262) ​​is equal to the outer diameter of the large end of the inner component retainer plus a second preset value.

8. The online riveting machine for inner components of a tapered bearing according to claim 5, characterized in that: It also includes a conveyor (51), which includes a conveyor belt (512) whose conveying direction is horizontal and perpendicular to the sliding direction of the clamping block (525). The conveyor belt (512) is used to convey the inner component to the inner component roller abutting arc surface (5263).

9. The online riveting machine for inner components of a tapered bearing according to claim 3, characterized in that: The transfer component (52) also includes a buffer damper (527), and there are multiple buffer dampers (527). The multiple buffer dampers (527) are respectively located on both sides of the connecting frame (523). The buffer dampers (527) are used to abut against the connecting frame (523).

10. An online riveting machine for inner components of a tapered bearing according to claim 3, characterized in that: It also includes a control component (7), which includes a controller (711), a bracket (72) and a material proximity switch (73). The upper end of the workbench (2) is provided with a feeding area. The transfer component (52) is used to transfer the workpiece in the feeding area to the riveting mold (3). The bracket (72) is fixedly connected to the upper end of the workbench (2). The material proximity switch (73) is fixedly connected to the bracket (72). The material proximity switch (73) is located directly above the feeding area. The material proximity switch (73) is electrically connected to the controller (711) and the clamping cylinder (524).

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