Assembly apparatus for shaft assembly

Abstract

The utility model relates to component assembly technical field provides an equipment for the assembly of shaft assembly, including support seat, pressure equipment, torque detection device and drive arrangement. Support seat is used for supporting fixed target component with inner hole, pressure equipment includes pressure equipment part and pressure mechanism, and pressure equipment part is located one side of support seat, and pressure mechanism is used for driving pressure equipment part to be close or far away from support seat along the axis direction of inner hole, torque detection device sets up one side of support seat far away from pressure equipment part, and torque detection device has shell and the input shaft and output shaft that can be fixed axle rotation relative to shell, and shell is opposite fixed with support seat, and the output shaft is used for fixed connection with the end of target axle piece when target axle piece and target component assemble in place, drive arrangement is transmission connection with input shaft, and drive arrangement is used for driving input shaft relative to shell rotation. Such setting, solved the problem that there is in the operation of related art when producing shaft assembly complicated, low efficiency.

Description

Technical Field

[0001] This utility model relates to the field of component assembly technology, and in particular to an assembly device for shaft assemblies. Background Technology

[0002] Some shaft components require assembly with target parts in applications. Specifically, an inner hole needs to be drilled in the target part, and the shaft is pressed into the inner hole of the target part with an interference fit. The assembly of the shaft and target part forms a shaft assembly. A significant radial pressure is generated between the outer surface of the shaft and the inner surface of the target part, resulting in static friction sufficient to transmit the rated operating torque. Under normal operating conditions, this static friction ensures that the shaft and target part remain relatively stationary, reliably transmitting power. However, when the shaft or target part is subjected to external impact or a load torque exceeding the rated operating torque, the contact surface between the shaft and target part breaks free from the static friction, causing relative rotation. This instantly releases the excessive impact energy, providing overload protection and effectively preventing damage to components.

[0003] To ensure the reliability of this overload protection function, the torque value that the assembled shaft assembly can withstand must be precisely controlled within a preset acceptable range. If the actual torque value that the shaft assembly can withstand is too small, unnecessary slippage may occur between the shaft and the target part under normal working load, preventing normal power transmission. Conversely, if the actual torque value that the shaft assembly can withstand is too large, the shaft and the target part will not slip in time during overload, rendering it ineffective in providing protection. Therefore, during the production process, the torque value that the shaft assembly can withstand is 100% precisely tested.

[0004] In related technologies, the production of shaft assemblies is divided into two processes: assembly and inspection. The assembly station and the inspection station are separate. The shaft and the target part must first be assembled together at the assembly station to form a shaft assembly. Then the shaft assembly is removed and transferred and clamped to the inspection process. The operation is complicated and inefficient.

[0005] Therefore, how to solve the problems of cumbersome operation and low efficiency in the production of shaft components in related technologies has become an important technical problem to be solved by those skilled in the art. Utility Model Content

[0006] This invention provides an assembly device for shaft assemblies, which solves the defects of cumbersome operation and low efficiency in the production of shaft assemblies in related technologies.

[0007] This utility model provides an assembly device for a shaft assembly, the shaft assembly including a target shaft and a target component with an inner hole, comprising: Support base, used to support and fix the target component; A pressing device includes a pressing part and a pressing mechanism. The pressing part is located on one side of the support base, and the pressing mechanism is used to drive the pressing part to move closer to or away from the support base along the axial direction of the inner hole. A torque detection device is disposed on the side of the support base away from the pressing part. The torque detection device has a housing and an input shaft and an output shaft that can rotate relative to the housing. The housing is fixed relative to the support base. The output shaft is used to fix the end of the target shaft when the target shaft and the target component are assembled in place. A drive unit is connected to the input shaft for driving the input shaft to rotate relative to the housing.

[0008] According to the present invention, an assembly device for a shaft assembly is provided, wherein the support base includes: The base is provided with mounting holes for the target component to extend into. An anti-rotation mechanism is provided on the base body, and the anti-rotation mechanism is used to restrict the target component from rotating relative to the base body.

[0009] According to the present invention, an assembly device for a shaft assembly is provided, wherein the target component includes an external gear, and the anti-rotation mechanism includes: A set of internal teeth is fixedly disposed on the side wall of the mounting hole. The set of internal teeth is distributed circumferentially along the mounting hole, and the set of internal teeth meshes with the external gear.

[0010] The assembly equipment for shaft assemblies provided by this utility model further includes: A connecting mechanism is disposed on the output shaft. The connecting mechanism is switchable between a connected state and a released state. In the connected state, it can at least restrict the rotation of the target shaft relative to the output shaft. In the released state, it can at least allow the target shaft to displace relative to the output shaft along its own axial direction.

[0011] According to the present invention, an assembly device for a shaft assembly is provided, wherein the connecting mechanism includes: A first connecting seat is fixedly disposed on the output shaft. A first connecting hole is provided at one end of the first connecting seat near the support seat. The first connecting hole is used for the end of the target shaft to extend into. The first connecting seat and the target shaft are provided with pin holes that correspond to each other in position. A pin fitting, adapted to the pin fitting hole, is used to pin-connect and fix the target shaft to the first connecting seat.

[0012] According to the present invention, an assembly device for a shaft assembly is provided, wherein the connecting mechanism includes: The second connecting seat is fixedly disposed on the output shaft, and a second connecting hole is provided at one end of the second connecting seat near the support seat; A one-way bearing is disposed in the second connecting hole. The outer ring of the one-way bearing is fixedly connected to the second connecting seat, and the inner hole of the one-way bearing is detachably connected to the target shaft.

[0013] According to the present invention, an assembly device for shaft assemblies is provided, wherein the one-way bearing is a one-way bearing without an inner ring, and the rollers of the one-way bearing directly contact the circumferential surface of the target shaft.

[0014] The assembly equipment for shaft assemblies provided by this utility model further includes: A first pressing trigger and a pressing member, one of which is disposed on the side of the support base near the pressing part, and the other is disposed on the side of the pressing part near the support base. The pressing member is used to generate pressing force on the first pressing trigger when the target shaft and the target component are assembled in place. The control device is electrically connected to both the first pressing trigger and the driving device. The control device is used to control the driving device to drive the input shaft to rotate in the forward direction when the pressing member presses the first pressing trigger.

[0015] The assembly equipment for shaft assemblies provided by this utility model further includes: The second pressing trigger is electrically connected to the control device, and the control device is further configured to control the drive device to drive the input shaft to rotate in the reverse direction when the second pressing trigger is pressed.

[0016] According to the present invention, an assembly device for shaft assemblies is provided, wherein a positioning hole is provided at one end of the pressing part near the support base, and the positioning hole is used for the end of the target shaft to extend into.

[0017] This utility model provides an assembly device for shaft assemblies. The shaft assembly includes a target shaft and a target component. The target component has an inner hole. When assembling the target shaft and the target component to form the shaft assembly, the target shaft needs to extend into the inner hole of the target component, and the relative positions of the target shaft and the target component along the axial direction of the target shaft need to reach a target relative position. The assembly device for shaft assemblies includes a support base, a pressing device, a torque detection device, and a driving device. The support base is used to support and fix the target component. The pressing device includes a pressing part and a pressing mechanism. The pressing part is located on one side of the support base, and the pressing mechanism is used to drive the pressing part to move closer to or away from the support base along the axial direction of the inner hole. After the target component is fixedly placed on the support base, the target shaft is placed on the side of the target component away from the support base, so that the end of the target shaft is aligned with the inner hole of the target component, and the axis of the target shaft coincides with the axis of the inner hole of the target component. By using a pressure-applying mechanism to drive the press-fitting part closer to the support base, controllable circumferential pressure can be applied to the target shaft component. The target shaft component moves relative to the target member along its own axial direction, extending into the inner hole of the target member until the relative position of the target shaft component and the target member along the target shaft component's axial direction meets the requirements, thus achieving physical assembly of the shaft assembly through interference fit. A torque detection device is located on the side of the support base away from the press-fitting part. The torque detection device has a housing, an input shaft, and an output shaft, both of which can rotate relative to the housing. The housing is fixed relative to the support base. When the target shaft component and the target member are assembled in place, that is, when the relative position of the target shaft component and the target member along the target shaft component's axial direction meets the requirements, the output shaft can be fixedly connected to the end of the target shaft component. After assembling the target shaft component and the target member, there is no need to remove the assembled shaft assembly; it can be directly connected to the target shaft component via the output shaft, preparing for torque detection and greatly simplifying the operation process. The drive unit is connected to the input shaft and drives the input shaft to rotate relative to the housing. Through the transmission chain inside the torque detection device, the output shaft can rotate relative to the housing, thus applying torque to the target shaft. The target shaft is fixed relative to the output shaft, and the torque acting on the target shaft is the same as the torque acting on the output shaft. The torque detection device can detect this torque in real time. When the target shaft rotates relative to the target component, the torque detection device can detect the torque value at that time, thereby determining the actual torque value that the shaft assembly can withstand. With this configuration, the assembly equipment for shaft assemblies provided by this invention integrates the pressing device and the torque detection device into the same device. The assembly of shaft assemblies and the detection of the actual torque value that the assembled shaft assembly can withstand can be realized at the same workstation. Assembly and torque detection are seamlessly connected, eliminating the need for secondary transfer and clamping of the shaft assembly. The operation is simple and efficient, solving the problems of cumbersome operation and low efficiency in the production of shaft assemblies in related technologies. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the assembly equipment for shaft assemblies provided by this utility model before press fitting (the pressure application mechanism is not shown).

[0020] Figure 2 This is a partial cross-sectional view of the assembly equipment for shaft assemblies provided by this utility model before press fitting (the pressure application mechanism is not shown).

[0021] Figure 3 This is a partial cross-sectional view (the pressure application mechanism is not shown) of the assembly equipment for shaft assemblies provided by this utility model when the target shaft is pressed into place.

[0022] Figure 4 This is a schematic diagram of the structure of the inner ring-less one-way bearing used in the assembly equipment for shaft assemblies provided by this utility model.

[0023] Figure label: 1. Target shaft; 2. Target component; 3. Support base; 4. Press fitting part; 5. Torque detection device; 6. Housing; 7. Input shaft; 8. Output shaft; 9. Internal gear; 10. Second connecting seat; 11. One-way bearing; 12. First pressing trigger; 13. Pressing element; 14. Second pressing trigger; 15. Positioning hole; 16. Drive motor; 17. Transmission mechanism; 18. Base; 19. Roller; 20. Outer ring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] The following is combined Figures 1 to 4This invention describes an assembly apparatus for shaft assemblies. The shaft assembly includes a target shaft 1 and a target component 2. The target component 2 has an inner hole. When assembling the target shaft 1 and the target component 2 to form the shaft assembly, the target shaft 1 needs to extend into the inner hole of the target component 2, and the relative positions of the target shaft 1 and the target component 2 along the axial direction of the target shaft 1 need to reach a target relative position. The target component 2 can be, but is not limited to, a plastic external gear. In this case, assembling the target shaft 1 and the target component 2 together can form a gear shaft.

[0026] like Figures 1 to 4 As shown, the assembly equipment for shaft assemblies provided in this embodiment of the present invention includes a support base 3, a pressing device, a torque detection device 5, and a driving device.

[0027] Specifically, the support base 3 is used to support and fix the target component 2, providing a stable and reliable reference for the subsequent pressing and torque testing process.

[0028] The pressing device includes a pressing part 4 and a pressing mechanism. The pressing part 4 is located on one side of the support base 3, and the pressing mechanism is used to drive the pressing part 4 to move closer to or away from the support base 3 along the axial direction of the inner hole.

[0029] After fixing the target component 2 onto the support base 3, place the target shaft 1 on the side of the target component 2 away from the support base 3, aligning the end of the target shaft 1 with the inner hole of the target component 2, and aligning the axis of the target shaft 1 with the axis of the inner hole of the target component 2. By using a pressure-applying mechanism to drive the pressing part 4 close to the support base 3, controllable axial pressure can be applied to the target shaft 1. The target shaft 1 moves relative to the target component 2 along its own axial direction, causing the target shaft 1 to extend into the inner hole of the target component 2, until the relative positions of the target shaft 1 and the target component 2 along the axial direction of the target shaft 1 reach the target relative position, thus achieving the physical assembly of the shaft assembly by interference fit.

[0030] The torque detection device 5 is located on the side of the support base 3 away from the pressing part 4. The torque detection device 5 has a housing 6, an input shaft 7, and an output shaft 8. The input shaft 7 and the output shaft 8 can rotate relative to the housing 6. The housing 6 is fixed relative to the support base 3. When the target shaft 1 and the target component 2 are assembled in place, that is, when the relative positions of the target shaft 1 and the target component 2 along the axial direction of the target shaft 1 reach the target relative position, the output shaft 8 can be fixedly connected to the end of the target shaft 1. After the target shaft 1 and the target component 2 are assembled together, there is no need to remove the assembled shaft assembly; it can be directly connected to the target shaft 1 through the output shaft 8, preparing for torque detection and greatly simplifying the operation process.

[0031] The drive unit is connected to the input shaft 7 and drives the input shaft 7 to rotate relative to the housing 6. Through the transmission chain inside the torque detection device 5, the output shaft 8 can be driven to rotate relative to the housing 6, thereby applying torque to the target shaft 1. The target shaft 1 and the output shaft 8 are relatively fixed, and the torque acting on the target shaft 1 is the same as the torque acting on the output shaft 8. The torque detection device 5 can detect this torque in real time.

[0032] When the target shaft 1 and the target component 2 rotate relative to each other, the torque detection device 5 can detect the torque value at this time, thereby determining the actual torque value that the shaft assembly can withstand.

[0033] With this configuration, the assembly equipment for shaft assemblies provided in this embodiment integrates the pressing device and the torque detection device 5 into the same device. The assembly of the shaft assembly and the detection of the actual torque value that the assembled shaft assembly can withstand can be realized at the same station. The assembly and torque detection are seamlessly connected, and there is no need for secondary transfer and secondary clamping of the shaft assembly. The operation is simple and efficient, which solves the problems of cumbersome operation and low efficiency in the production of shaft assemblies in related technologies.

[0034] In a specific embodiment, the assembly equipment for the shaft assembly further includes a base 18 for supporting the support seat 3. The support seat 3 is located above the base 18, and there is a certain gap between the support seat 3 and the base 18. The torque detection device 5 is disposed between the support seat 3 and the base 18. The housing 6 of the torque detection device 5 is fixedly connected to the base 18, and the input shaft 7 of the torque detection device 5 is rotatably connected to the base 18 through a bearing.

[0035] The drive unit includes a drive motor 16 and a transmission mechanism 17, which are mounted above the base 18 and located on one side of the torque detection device 5. The housing 6 of the drive motor 16 is fixedly connected to the base 18. The transmission mechanism 17 is located between the drive motor 16 and the input shaft 7 of the torque detection device 5. The output shaft 8 of the drive motor 16 is drivenly connected to the driving end of the transmission mechanism 17, and the driven end of the transmission mechanism 17 is drivenly connected to the input shaft 7 of the torque detection device 5.

[0036] The aforementioned transmission mechanism 17 may, but is not limited to, use a gear transmission group.

[0037] The aforementioned pressure application mechanism can be, but is not limited to, a press, as long as it can drive the pressing part 4 to reciprocate in the vertical direction. Based on the target relative position of the target shaft 1 and the target component 2 along the axis of the target shaft 1, the distance that the pressing part 4 needs to move downward during assembly is determined. By controlling the pressure application mechanism according to this distance, it can be ensured that the target shaft 1 and the target component 2 are assembled in place.

[0038] In this embodiment of the invention, the support base 3 includes a base body and an anti-rotation mechanism. The base body is provided with a mounting hole for the target component 2 to extend into. The mounting hole on the base body provides a stable assembly reference for the target component 2, ensuring the stability of the target component 2 during the press-fitting process and creating conditions for the precise press-fitting of the target shaft 1.

[0039] An anti-rotation mechanism is installed on the base body to limit the rotation of the target component 2 relative to the base body. When the torque detection device 5 applies torque to the target shaft 1, it effectively fixes the target component 2, preventing it from rotating. This ensures that the applied torque can fully act on the mating surfaces of the target shaft 1 and the target component 2, guaranteeing that the torque detection device 5 can accurately measure the actual torque value when the two rotate relative to each other, thus ensuring the accuracy and reliability of the detection.

[0040] In a specific embodiment, the target component 2 includes an external gear, and the anti-rotation mechanism includes a set of internal teeth 9. The set of internal teeth 9 is fixedly disposed on the side wall of the mounting hole. The set of internal teeth 9 is distributed at intervals along the circumference of the mounting hole, and the set of internal teeth 9 meshes with the external gear.

[0041] The target component 2 is circumferentially limited by the meshing of gear teeth. The structure is simple and the positioning is reliable. When the torque of the assembled shaft assembly is detected, the target component 2 can be effectively prevented from rotating together with the target shaft 1.

[0042] In this embodiment of the invention, the assembly equipment for the shaft assembly further includes a connecting mechanism disposed on the output shaft 8. The connecting mechanism is capable of switching between a connected state and a released state.

[0043] When the connecting mechanism switches to the connected state, it can at least restrict the rotation of the target shaft 1 relative to the output shaft 8, thereby ensuring that the torque can be reliably transmitted to the target shaft 1, which guarantees the accuracy of torque detection.

[0044] When the connecting mechanism is switched to the release state, the connecting mechanism can at least allow the target shaft 1 to be displaced relative to the output shaft 8 along its own axis, so as to remove the assembled shaft assembly from the support 3 and facilitate the placement of the next target component 2 to be assembled on the support 3, effectively shortening the single operation cycle time and improving the overall production efficiency.

[0045] By rapidly switching the state of the connecting mechanism, quick connection during torque detection and quick part removal after torque detection are achieved, making operation more convenient and more automated.

[0046] In some embodiments of this utility model, the connecting mechanism includes a first connecting seat and a pin.

[0047] The first connecting seat is fixedly mounted on the output shaft 8, and the torque of the output shaft 8 can be stably and reliably transmitted to the first connecting seat, providing a solid foundation for the connection with the target shaft 1 and the application of torque.

[0048] The connection between the first connecting seat and the output shaft 8 can be made by, but is not limited to, pin connection, interference fit, riveting, welding, etc. The connection between the first connecting seat and the output shaft 8 does not require repeated disassembly; it is sufficient to ensure that the first connecting seat and the output shaft 8 are securely connected together and can withstand a sufficiently large torque.

[0049] The first connecting seat has a first connecting hole at one end near the support seat 3, which is used for the end of the target shaft 1 to extend into. The first connecting hole not only provides a space for the target shaft 1 to be received, but also plays a preliminary guiding and centering role, so that the target shaft 1 can be quickly and accurately aligned with the first connecting seat, simplifying the connection operation.

[0050] The first connecting seat and the target shaft 1 are provided with corresponding pin holes. The pin is adapted to the pin hole and is used to pin-fix the target shaft 1 to the first connecting seat. By using the pin to pin-fix the target shaft 1 to the first connecting seat, a rigid connection is formed, which can effectively transmit torque. During torque detection, it can prevent relative rotation between the first connecting seat and the target shaft 1, thereby ensuring the accuracy of the torque detection results.

[0051] In addition, the pin connection is very easy to insert and remove, enabling quick connection and separation between the target shaft 1 and the output shaft 8, which greatly shortens the time required to clamp and remove the target shaft 1.

[0052] In some other embodiments of this utility model, the connecting mechanism includes a second connecting seat 10 and a one-way bearing 11.

[0053] The second connecting seat 10 is fixedly mounted on the output shaft 8. The second connecting seat 10 has a second connecting hole at one end near the support seat 3 for accommodating the one-way bearing 11.

[0054] The connection between the second connecting seat 10 and the output shaft 8 can be made by, but is not limited to, pin connection, interference fit, riveting, welding, etc. The connection between the second connecting seat 10 and the output shaft 8 does not require repeated disassembly; it is sufficient that the second connecting seat 10 and the output shaft 8 can be securely connected together and can withstand a sufficiently large torque.

[0055] One-way bearing 11 is disposed in the second connecting hole. The outer ring of one-way bearing 11 is fixedly connected to the second connecting seat 10. The inner hole of one-way bearing 11 is detachably connected to the target shaft 1.

[0056] In some embodiments, the one-way bearing 11 can be as follows: Figure 4The one-way bearing shown has a ringless design. The inner bore of the one-way bearing 11 has a protruding, movable roller 19 that can directly contact the circumferential surface of the target shaft 1.

[0057] The end of the target shaft 1 is located within the inner bore of the one-way bearing 11. When a positive torque is applied to the outer ring 20 of the one-way bearing 11 relative to the target shaft 1, the rollers 19 of the one-way bearing 11 are locked to the target shaft 1, and the outer ring 20, rollers 19, and target shaft 1 of the one-way bearing 11 cannot rotate relative to each other. When a negative torque is applied to the outer ring 20 of the one-way bearing 11 relative to the target shaft 1, the rollers 19 of the one-way bearing 11 are released from the target shaft 1, and the outer ring 20, rollers 19, and target shaft 1 of the one-way bearing 11 can rotate relative to each other.

[0058] The inner ringless one-way bearing has no special requirements for the end structure of the target shaft 1. It is sufficient that the circumferential surface of the target shaft 1 can contact the roller 19 of the inner ringless one-way bearing. There is no need to set a mating structure at the end of the target shaft 1; the cylindrical surface of the target shaft 1 can mate with the inner ringless one-way bearing.

[0059] During torque detection, the drive unit drives the output shaft 8 of the torque detection device 5 to rotate in the forward direction, which locks the target shaft 1 and the output shaft of the torque detection device 5 together, thereby accurately transmitting torque and ensuring the accuracy of torque detection.

[0060] In this case, after the torque detection is completed, the drive device drives the output shaft 8 of the torque detection device 5 to rotate in the opposite direction, so that the roller of the one-way bearing 11 and the target shaft 1 are released, thereby the target shaft 1 can be easily removed from the inner hole of the one-way bearing 11. This realizes the quick and automatic connection and separation of the target shaft 1 and the output shaft 8 without the need for additional manual operation or complex mechanical structure, which greatly simplifies the operation steps and improves the automation level and overall efficiency of assembly and testing.

[0061] In other embodiments, the one-way bearing 11 may also be a one-way bearing with an inner ring, the inner ring of which serves as the inner hole of the one-way bearing 11 for connecting the target shaft 1.

[0062] When a positive torque is applied to the outer ring of the one-way bearing 11 relative to the inner ring, the inner and outer rings of the one-way bearing 11 are locked, and they cannot rotate relative to each other. When a negative torque is applied to the outer ring of the one-way bearing 11 relative to the inner ring, the inner and outer rings of the one-way bearing 11 are released, and they can rotate relative to each other.

[0063] During torque detection, the drive unit drives the output shaft 8 of the torque detection device 5 to rotate in the forward direction, which locks the target shaft 1 and the output shaft 8 of the torque detection device 5 into one unit, thereby accurately transmitting torque and ensuring the accuracy of torque detection.

[0064] Since the inner ring of the one-way bearing locks the inner and outer rings, the inner ring will not undergo structural shape changes; that is, the fit between the inner ring and the target shaft 1 will not change. In this case, after the torque detection is completed, the target shaft 1 can be removed from the inner ring of the one-way bearing 11 without the need for the drive device to drive the output shaft 8 of the torque detection device 5 to rotate in the opposite direction.

[0065] For the mating connection structure between the target shaft 1 and the inner ring of the one-way bearing 11, the end of the target shaft 1 is interference-fitted with the inner ring of the one-way bearing 11, or the end of the target shaft 1 is keyed to the inner ring of the one-way bearing 11.

[0066] The end of the target shaft 1 is interference-fitted with the inner ring of the one-way bearing 11. The structure is simple and has high coaxiality. The torque is reliably transmitted through the friction force generated by radial pressure, thereby ensuring that the torque applied by the drive device can be transmitted to the target shaft 1 without loss or gap during the torque detection process, thus ensuring the accuracy of the torque detection results.

[0067] The end of the target shaft 1 is keyed to the inner ring of the one-way bearing 11. Through the meshing of the key, a circumferential rigid connection is formed, which can transmit a large torque and is reliable, ensuring the accuracy and stability of torque detection. Moreover, this connection method is easy to assemble and disassemble, which helps to improve the efficiency of automated assembly and inspection.

[0068] Some target shaft parts 1 originally have keyways or splines at their ends. In this case, a one-way bearing 11 with a keyway or spline on the inner ring can be selected.

[0069] Some target shaft parts 1 have only a standard cylindrical surface at the end. In this case, the end of the target shaft part 1 can be interference-fitted with the inner ring of the one-way bearing 11. If opening a keyway at the end of the target shaft part 1 does not affect the later use and installation of the target shaft part 1, and can ensure the structural strength of the target shaft part 1, then the target shaft part 1 can be keyed to the inner ring of the one-way bearing 11.

[0070] In a further embodiment, the assembly equipment for the shaft assembly also includes a first pressing trigger 12, a pressing member 13, and a control device.

[0071] One of the first pressing trigger 12 and the pressing member 13 is disposed on the side of the support base 3 near the pressing part 4, and the other is disposed on the side of the pressing part 4 near the support base 3. The pressing member 13 is used to generate pressing force on the first pressing trigger 12 when the target shaft 1 and the target component 2 are assembled in place.

[0072] The subsequent testing process is triggered by the end of the pressing action. The structure is simple and the signal triggering is stable and reliable.

[0073] The first pressing trigger 12 can be positioned on the side of the support base 3 near the pressing part 4, and the pressing part 13 can be positioned on the side of the pressing part 4 near the support base 3; alternatively, the first pressing trigger 12 can be positioned on the side of the pressing part 4 near the support base 3, and the pressing part 13 can be positioned on the side of the support base 3 near the pressing part 4. As long as the pressing part 4 presses the target shaft 1 into place, the pressing part 13 can trigger the first pressing trigger 12.

[0074] Both the first pressing trigger 12 and the drive device are electrically connected to the control device. The control device is used to control the drive device to drive the input shaft 7 to rotate in the forward direction when the pressing member 13 presses the first pressing trigger 12, so as to drive the output shaft 8 to rotate in the forward direction. The one-way bearing 11 locks the output shaft 8 with the target shaft member 1.

[0075] When the target shaft 1 and target component 2 are assembled in place, the first pressing trigger 12 is triggered, which automatically and seamlessly starts the drive device to perform the torque detection process. Through automated control, the assembly and torque detection processes can be completed continuously at the same station without the need for secondary handling and clamping of the assembled shaft assembly, which greatly simplifies the operation process and significantly improves production efficiency.

[0076] The first press trigger 12 mentioned above can be, but is not limited to, a button or key.

[0077] The aforementioned pressing element 13 can be configured as a rigid columnar structure.

[0078] In a further embodiment, when an inner ring-less one-way bearing is selected as the one-way bearing 11, the assembly equipment for the shaft assembly further includes a second pressing trigger 14. The second pressing trigger 14 is electrically connected to the control device. The control device is also used to control the drive device to drive the input shaft 7 to rotate in the opposite direction when the second pressing trigger 14 is pressed, so as to drive the output shaft 8 to rotate in the opposite direction, and the one-way bearing 11 releases the target shaft 1.

[0079] In this embodiment of the invention, a positioning hole 15 is provided at one end of the pressing part 4 near the support base 3. The positioning hole 15 is used for the end of the target shaft 1 to extend into. By guiding and limiting the end of the target shaft 1 through the positioning hole 15, it can be ensured that the axis of the target shaft 1 and the axis of the inner hole of the target component 2 remain coaxial during the pressing process, thereby avoiding the target shaft 1 from being misaligned and improving the stability and success rate of the pressing.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An assembly apparatus for a shaft assembly, the shaft assembly comprising a target shaft and a target member having an inner hole, characterized in that, include: Support base, used to support and fix the target component; A pressing device includes a pressing part and a pressing mechanism. The pressing part is located on one side of the support base, and the pressing mechanism is used to drive the pressing part to move closer to or away from the support base along the axial direction of the inner hole. A torque detection device is disposed on the side of the support base away from the pressing part. The torque detection device has a housing and an input shaft and an output shaft that can rotate relative to the housing. The housing is fixed relative to the support base. The output shaft is used to fix the end of the target shaft when the target shaft and the target component are assembled in place. A drive unit is connected to the input shaft for driving the input shaft to rotate relative to the housing.

2. The assembly equipment for shaft assemblies according to claim 1, characterized in that, The support base includes: The base is provided with mounting holes for the target component to extend into. An anti-rotation mechanism is provided on the base body, and the anti-rotation mechanism is used to restrict the target component from rotating relative to the base body.

3. The assembly equipment for shaft assemblies according to claim 2, characterized in that, The target component includes an external gear, and the anti-rotation mechanism includes: A set of internal teeth is fixedly disposed on the side wall of the mounting hole. The set of internal teeth is distributed circumferentially along the mounting hole, and the set of internal teeth meshes with the external gear.

4. The assembly equipment for shaft assemblies according to claim 1, characterized in that, Also includes: A connecting mechanism is disposed on the output shaft. The connecting mechanism is switchable between a connected state and a released state. In the connected state, it can at least restrict the rotation of the target shaft relative to the output shaft. In the released state, it can at least allow the target shaft to displace relative to the output shaft along its own axial direction.

5. The assembly equipment for shaft assemblies according to claim 4, characterized in that, The connecting mechanism includes: A first connecting seat is fixedly disposed on the output shaft. A first connecting hole is provided at one end of the first connecting seat near the support seat. The first connecting hole is used for the end of the target shaft to extend into. The first connecting seat and the target shaft are provided with pin holes that correspond to each other in position. A pin fitting, adapted to the pin fitting hole, is used to pin-connect and fix the target shaft to the first connecting seat.

6. The assembly equipment for shaft assemblies according to claim 4, characterized in that, The connecting mechanism includes: The second connecting seat is fixedly disposed on the output shaft, and a second connecting hole is provided at one end of the second connecting seat near the support seat; A one-way bearing is disposed in the second connecting hole. The outer ring of the one-way bearing is fixedly connected to the second connecting seat, and the inner hole of the one-way bearing is detachably connected to the target shaft.

7. The assembly equipment for shaft assemblies according to claim 6, characterized in that, The one-way bearing is a one-way bearing without an inner ring, and the rollers of the one-way bearing directly contact the circumferential surface of the target shaft.

8. The assembly equipment for shaft assemblies according to claim 6, characterized in that, Also includes: A first pressing trigger and a pressing member, one of which is disposed on the side of the support base near the pressing part, and the other is disposed on the side of the pressing part near the support base. The pressing member is used to generate pressing force on the first pressing trigger when the target shaft and the target component are assembled in place. The control device is electrically connected to both the first pressing trigger and the driving device. The control device is used to control the driving device to drive the input shaft to rotate in the forward direction when the pressing member presses the first pressing trigger.

9. The assembly equipment for shaft assemblies according to claim 8, characterized in that, Also includes: The second pressing trigger is electrically connected to the control device, and the control device is further configured to control the drive device to drive the input shaft to rotate in the reverse direction when the second pressing trigger is pressed.

10. The assembly equipment for shaft assemblies according to claim 1, characterized in that, The press-fitting part has a positioning hole at one end near the support base, which is used for the end of the target shaft to extend into.

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