A kind of transmission shaft fixed end section assembly equipment

Abstract

This invention discloses a drive shaft fixed end section assembly device, including a workbench and a workstation transfer mechanism. A support back plate is vertically arranged on the top plate of the workbench. The workbench is equipped with a star-shaped sleeve positioning mechanism, a cage positioning mechanism, and a steel ball guiding mechanism. A working hole runs vertically through the workbench, and a bell-shaped shell rotating mechanism is also provided on the workbench, aligned vertically with the working hole. The support back plate is equipped with a bell-shaped shell orientation mechanism and a star-shaped sleeve swing mechanism, the extension direction of which is perpendicular to the guiding direction of the steel ball by the steel ball guiding mechanism. This drive shaft fixed end section assembly device can conveniently and efficiently achieve precise assembly of drive shaft fixed end sections, reducing the labor intensity and labor costs for workers.

Description

Technical Field

[0001] This invention relates to the technical field of automotive driveshaft component assembly equipment, and in particular to a driveshaft fixed end section assembly equipment. Background Technology

[0002] The fixed end joint of the driveshaft is used to transmit power and torque during vehicle operation and also enables steering, making it a key component of the automotive driveshaft. With the development of the automotive industry and the continuous increase in vehicle production, the production of fixed end joints for automotive driveshafts is also gradually increasing. Simultaneously, the requirements for production efficiency and product quality control of fixed end joints are becoming increasingly stringent.

[0003] Currently, the fixed end section of the drive shaft is still assembled manually using traditional methods. Operators manually complete the precise fit between components such as the star-shaped sleeve, cage, and bell-shaped housing of the drive shaft. Moreover, each of the above-mentioned fitting components must be assembled at a specific angle. The actual assembly is quite difficult, and the assembly operation is highly dependent on the operator's skill level, resulting in extremely low controllability of the assembly process.

[0004] In addition, the aforementioned traditional manual assembly method results in high labor intensity for operators, low component assembly efficiency, and high labor costs. Furthermore, since the actual assembly operation relies entirely on manual work, it is very easy for incorrect or missing parts to be assembled, leading to a high rework rate. This seriously affects the product assembly effect and overall assembly efficiency of the drive shaft fixed end section.

[0005] In view of this, how to achieve precise assembly of the fixed end section of the drive shaft in a convenient and efficient manner, and reduce the labor intensity and labor costs of workers, is an important technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a drive shaft fixed end section assembly device, which can conveniently and efficiently realize the precision assembly of drive shaft fixed end sections, reducing the labor intensity and labor costs of workers.

[0007] To solve the above technical problems, the present invention provides a transmission shaft fixed end section assembly equipment, including a workbench and a workstation transfer mechanism controlled on the ground. The workbench has a horizontally arranged platform on top, and a support back plate is vertically arranged on the top surface of the platform.

[0008] The platform is equipped with a star-shaped sleeve positioning mechanism that can be adapted to the positioning and disassembly of the star-shaped sleeve, a cage positioning mechanism that can be adapted to the positioning and disassembly of the cage, and a steel ball guiding mechanism that can guide the steel ball to be aligned and installed into the star-shaped sleeve track. The platform has a working hole that runs through it in the vertical direction. The platform is also equipped with a bell-shaped shell rotating mechanism that can drive the bell-shaped shell to rotate. The bell-shaped shell rotating mechanism and the working hole are aligned in the vertical direction.

[0009] The support back plate is provided with a bell-shaped shell orientation mechanism adapted to the bell-shaped shell. The support back plate is also provided with a star-shaped sleeve swing mechanism that can drive the star-shaped sleeve to swing back and forth around a horizontal swing axis. The extension direction of the horizontal swing axis is perpendicular to the guiding direction of the steel ball by the steel ball guiding mechanism.

[0010] Preferably, the workstation transfer mechanism includes a base fixedly installed on the ground, and a robotic arm capable of reciprocating swing and lifting is provided on the base. The working end of the robotic arm is provided with a first gripper fixture capable of clamping a bell-shaped shell and a second gripper fixture capable of clamping a star-shaped fitting retainer.

[0011] Preferably, the star-shaped sleeve swing mechanism includes a rear fixed plate fixed to the support back plate, a swing moving plate is provided on the rear fixed plate, and a swing motor, a swing reducer, a swing shaft and a swing fixture are arranged sequentially along the horizontal direction on the swing moving plate. The swing fixture can be aligned and inserted into the inner hole of the star-shaped sleeve.

[0012] Preferably, the bell-shaped shell rotation mechanism includes a horizontally arranged fixed base plate and a vertically arranged fixed plate on one side of the fixed base plate. The fixed base plate is suspended from the bottom of the platform by a fixed column. The fixed base plate is provided with a rotary motor, a rotary reducer and a rotary shaft that are in transmission cooperation. The top of the rotary shaft is coaxially arranged with a bell-shaped shell support fixture that can be adapted to the bell-shaped shell.

[0013] Preferably, a clamping cone sleeve is coaxially sleeved on the outer periphery of the rotating shaft, the outer diameter of the clamping cone sleeve increases from bottom to top, the clamping cone sleeve is provided with a jaw that is aligned and adapted to the rotating shaft to clamp the bell-shaped shell, the outer side of the clamping cone sleeve is provided with a lifting ring that can abut and move with the outer wall of the clamping cone sleeve, and a push cylinder is provided on the fixed base plate that can drive the lifting ring to move back and forth.

[0014] Preferably, the steel ball guiding mechanism includes a small ball screening channel located above the platform, a supporting flange shaft connecting the bottom of the small ball screening channel to the top surface of the platform, and a small ball screening fixture being provided inside the small ball screening channel;

[0015] The top of the small ball screening channel is connected to the large ball screening channel, and the large ball screening channel is equipped with a large ball screening fixture.

[0016] The downstream of both the large ball screening fixture and the small ball screening fixture are connected to a collection box via a material discharge channel.

[0017] Preferably, the bell-shaped shell orientation mechanism includes a bell-shaped shell positioning fixture located at the bottom and a front fixed plate fixedly mounted on the support back plate. An orientation moving plate is vertically mounted on the front fixed plate. An orientation servo motor, an orientation reducer, an orientation shaft, and an orientation fixture are driven on the orientation moving plate. The orientation fixture can be aligned and adapted to the ball track of the bell-shaped shell.

[0018] Preferably, the star-shaped sleeve positioning mechanism includes a star-shaped sleeve positioning base fixed on the table, star-shaped sleeve positioning fixtures coaxially and symmetrically arranged on both sides of the star-shaped sleeve positioning base, and a star-shaped sleeve positioning cylinder capable of driving the two star-shaped sleeve positioning fixtures to move towards or away from each other. The star-shaped sleeve positioning fixtures can be aligned and fitted with the star-shaped sleeve track.

[0019] Preferably, the cage positioning mechanism includes a cage positioning base disposed on a platform, cage positioning fixtures coaxially and symmetrically arranged on both sides of the cage positioning base, and a cage positioning cylinder capable of driving the two cage positioning fixtures to move towards or away from each other. The cage positioning fixtures can be aligned and engaged with the steel ball window of the cage.

[0020] Preferably, the support back plate includes a vertically arranged upright plate and two supports fixedly mounted on the platform. The two supports are symmetrically arranged on both sides of the upright plate, and the bottom of the supports has an adjustment component capable of adjusting the position of the upright plate in the horizontal direction.

[0021] Compared to the aforementioned background technology, the transmission shaft fixed end section assembly equipment provided by this invention, through the coordinated operation of various mechanisms, achieves smooth docking and assembly of components such as the star-shaped sleeve, bell-shaped shell, and steel ball of the transmission shaft fixed end section. All mechanisms are integrated on the platform, making the arrangement of each workstation more compact and orderly. At the same time, the workstation transfer device realizes the picking and placing of various components of the transmission shaft fixed end section, thereby realizing the workstation conversion of each component, greatly reducing the labor intensity and labor costs of the workers, and effectively improving the alignment accuracy and assembly efficiency of each component. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a left-side isometric view of a drive shaft fixed end section assembly device provided in a specific embodiment of the present invention;

[0024] Figure 2 for Figure 1 Axonometric view from the right side;

[0025] Figure 3 for Figure 1 Axonometric drawing of the intermediate workbench;

[0026] Figure 4 for Figure 1 Axonometric view of the central support backplate;

[0027] Figure 5 for Figure 1 Axonometric drawing of the star-shaped sleeve positioning mechanism;

[0028] Figure 6 for Figure 1 Axonometric drawing of the cage positioning mechanism;

[0029] Figure 7 for Figure 1 Isometric drawing of the intermediate workstation transfer mechanism;

[0030] Figure 8 for Figure 1 Axiometric view of the steel ball guiding mechanism in the forward direction;

[0031] Figure 9 for Figure 8 Axonometric projection of the back side;

[0032] Figure 10 for Figure 1 Axonometric view of the bell-shaped shell rotating mechanism;

[0033] Figure 11 for Figure 10 Axonometric drawing viewed from below;

[0034] Figure 12 for Figure 1 Axonometric drawing of the bell-shaped shell orientation mechanism;

[0035] Figure 13 for Figure 1 Axonometric drawing of the central star-shaped sleeve oscillating mechanism;

[0036] Figure 14 This is a sectional view of the assembly structure of the fixed end section of the drive shaft. Detailed Implementation

[0037] The core of this invention is to provide a drive shaft fixed end section assembly device, which can conveniently and efficiently realize the precision assembly of drive shaft fixed end sections, reducing the labor intensity and labor costs of workers.

[0038] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] Please refer to the reference. Figures 1 to 14 .

[0040] In a specific embodiment, the transmission shaft fixed end section assembly equipment provided by the present invention has a star-shaped sleeve positioning mechanism 3 and a cage positioning mechanism 4 installed and fixed on the platform 101 of the workbench 1, which can position the star-shaped sleeve 111 and the cage 112; a bell-shaped shell orientation mechanism 5 is installed and fixed on the support back plate 2, and the bell-shaped shell orientation mechanism 5 can perform lifting and lowering movements; a workstation transfer mechanism 6 is fixed on the ground, which can transport and assemble product workpieces between workstations; a star-shaped sleeve swing mechanism 7 is installed and fixed on the support back plate 2, and the star-shaped sleeve swing mechanism 7 can perform lifting and lowering movements and swaying movements, with its swaying movement center coinciding with the swaying center of the fixed end section; a bell-shaped shell rotation mechanism 8 is installed and fixed under the platform 101 of the workbench 1, and the bell-shaped shell rotation mechanism 8 can perform rotational movements, with its rotation center coinciding with the workpiece axis; and a steel ball guiding mechanism 9 is installed and fixed on the platform 101 of the workbench 1, and the steel ball guiding mechanism 9 can roll and guide the steel ball 114.

[0041] In this solution, the linkage control and coordination of various functional components and action mechanisms are generally achieved by using a PLC (Programmable Logic Controller) controller that can communicate and cooperate with various sensors. Alternatively, depending on the actual working conditions and component adaptation requirements, a computer or other types of control equipment can be selected.

[0042] In the component structure of the workbench 1, the platform 101 is connected and fixed above the square tube welding frame 102, and the square tube welding frame 102 is placed on the ground using feet 103.

[0043] In the component structure supporting the back plate 2, the upright plate 201 is connected and fixed to the sides of two supports 202. The two supports 202 are installed and fixed on the platform 101 of the workbench 1, and their front and rear positions can be adjusted by adjusting blocks 203 to calibrate the working center of the equipment. The position adjustment of the adjusting blocks 203 can be achieved by aligning and sliding the bolts through horizontally arranged elongated holes, by using guide rails, or by other actuating mechanisms that can achieve relative position adjustment.

[0044] In the component structure of the star-shaped sleeve positioning mechanism 3, the star-shaped sleeve positioning base 301 is fixed on the table plate 101 of the workbench 1, and the star-shaped sleeve positioning fixture 303 is installed on both sides of the star-shaped sleeve positioning base 301. It is driven to move forward by the piston rod of the star-shaped sleeve positioning cylinder 302. After the star-shaped sleeve 111 is fed onto the star-shaped sleeve positioning base 301, the piston rods of the star-shaped sleeve positioning cylinders 302 on both sides extend at the same time, causing the star-shaped sleeve positioning fixture 303 to contact the star-shaped sleeve ball track 115 and position the star-shaped sleeve 111.

[0045] In the component structure of the cage positioning mechanism 4, the cage positioning base 401 is fixed on the table plate 101 of the workbench 1, and the cage positioning fixture 403 is installed on both sides of the cage positioning base 401. It is driven to move forward by the piston rod of the cage positioning cylinder 402. After the cage 112 is fed onto the cage positioning base 401, the cage positioning cylinders 402 on both sides extend at the same time, causing the cage positioning fixture 403 to contact the cage ball window 116 and position the cage 112.

[0046] In the component structure of the bell-shaped shell orientation mechanism 5, a bell-shaped shell positioning fixture 501 is installed at the bottom of the entire component. The bell-shaped shell positioning fixture 501 is fixed on the platform 101 of the workbench 1. A front fixing plate 502 is installed above it. The front fixing plate 502 is fixed on the upright plate 201 of the support back plate 2. A lifting cylinder 503 is installed on the front fixing plate 502. Its piston rod can drive the orientation moving plate 504 to rise and fall. The orientation moving plate 504 and the front fixing plate 502 can move relative to each other through the guide rail 505. An orientation servo motor 506, an orientation reducer 507, an orientation rotating shaft 508 and an orientation fixture 509 are installed on the orientation moving plate 504. The rotation center of each component is consistent with the center of the bell-shaped shell positioning fixture 501 below. During operation, the piston rod of the lifting cylinder 503 extends, causing the directional moving plate 504 to descend, making the directional fixture 509 contact the bell-shaped shell 113. The directional servo motor 506 starts to rotate forward, driving the directional rotating shaft 508 and the directional fixture 509 to rotate through the directional reducer 507. When the directional fixture 509 is aligned with the bell-shaped shell track 117 and enters the bell-shaped shell track 117, the directional servo motor 506 switches to reverse, driving the bell-shaped shell 113 to rotate synchronously in reverse until one of the bell-shaped shell tracks 117 reaches a specific position and stops. The piston rod of the lifting cylinder 503 retracts, driving the directional moving plate 504 back to its original position, completing the orientation operation of the bell-shaped shell 113 and achieving its directional positioning.

[0047] In the component structure of the workstation transfer mechanism 6, the robotic arm 601 is mounted and fixed on the base 602, which is fixed to the ground by expansion bolts. The robotic arm is mounted and fixed to the first gripper 604 and the second gripper 606 via a mounting plate 603. The first gripper 604 has a first clamping fixture 605 mounted at its front end, which can grip the bell-shaped shell 113. After the bell-shaped shell 113 is oriented, the robotic arm 601 drives the first clamping fixture 605 to grip the bell-shaped shell 113 and transport it to the bell-shaped shell rotating mechanism 8. The second gripper 606 has a second clamping fixture 607 mounted at its front end, which can grip the star-shaped sleeve 111 and the retainer 112. After the star-shaped sleeve 111 and the retainer 112 are positioned, the robotic arm 601 drives the second clamping fixture 607 to grip the star-shaped sleeve 111. 1. The star-shaped sleeve 111 is moved to the cage positioning mechanism 4 and precisely inserted into the cage 112 at a specific angle, and the ball track 115 of the star-shaped sleeve is aligned with the steel ball window 116 of the cage. The robotic arm 601 drives the second gripper fixture 607 to simultaneously clamp the star-shaped sleeve 111 and the cage 112, and move them to the bell shell rotating mechanism 8. The star-shaped sleeve 111 and the cage 112 are then precisely inserted into the bell shell 113 at a specific angle, and the ball track 115 of the star-shaped sleeve is aligned with the ball track 117 of the bell shell. During the process of precisely inserting the star-shaped sleeve 111 and the cage 112 into the bell shell 113, the steel ball guiding mechanism 9 sends out a steel ball 114 into the ball track 117 of the bell shell, so that the relative positions of the star-shaped sleeve 111 and the cage 112 and the bell shell 113 are locked.

[0048] In the component structure of the star-shaped swing mechanism 7, the rear fixed plate 701 is installed and fixed on the upright plate 201 of the support back plate 2, the swing lifting cylinder 702 is installed on the rear fixed plate 701, and its piston rod can drive the swing moving plate 703 to rise and fall. The swing moving plate 703 and the rear fixed plate 701 can move relative to each other through the guide rail 704. The swing moving plate 703 is equipped with a swing servo motor 705, a swing reducer 706, a swing shaft 707 and a swing fixture 708, and its swing motion center is consistent with the swing center of the fixed end section. During operation, the piston rod of the swing lifting cylinder 702 extends, causing the swing moving plate 703 to descend, so that the swing fixture 708 is inserted into the inner hole of the star sleeve 111. The swing servo motor 705 starts to rotate forward, and drives the swing shaft 707 and the swing fixture 708 to rotate through the swing reducer 706. The swing fixture 708 causes the star sleeve 111 and the cage 112 to swing to a specific angle. The steel ball guide mechanism 9 sends out a steel ball 114 through the steel ball window 116 of the cage to cooperate with the ball track 115 of the star sleeve. The swing servo motor 705 switches to reverse, causing the star sleeve 111 and the cage 112 to swing back to their original position. The lower bell-shaped shell rotating mechanism 8 drives the bell-shaped shell to rotate at a specific angle. The swing servo motor 705 starts to rotate forward again, so that the next cage ball window 116 is aligned with the ball outlet of the ball guide mechanism 9. Another ball 114 is loaded into the star-shaped sleeve ball track 115. The swing servo motor 705 switches to reverse again, driving the star-shaped sleeve 111 and the cage 112 to swing back to their original positions. This action is repeated until the assembly is completed. Then the piston rod of the swing lifting cylinder 702 retracts, driving the swing moving plate 703 back to its original position.

[0049] In the component structure of the bell-shaped shell rotating mechanism 8, the fixed base plate 801 and the fixed vertical plate 802 are connected together and fixed to the table plate 101 of the workbench 1 by the fixed column 803. The fixed base plate 801 is equipped with a rotary motor 804 and a rotary reducer 805. The rotary motor 804 outputs rotational torque through the rotary reducer 805, which is then transmitted to the rotating shaft 807 through the synchronous belt 806. The bottom of the rotating shaft 807 is installed on the fixed base plate 801, and the middle part of the rotating shaft 807 is installed in the spindle box 808, which is fixed to the fixed vertical plate 801. The bell-shaped shell support fixture 8 is installed at the center of the upper part of the rotating shaft 807. 09. A clamping cone sleeve 810 is installed on the outer ring of the rotating shaft 807 to support the bell-shaped shell 113. The outer diameter of the clamping cone sleeve 810 increases from bottom to top. Four jaws 811 are installed between the clamping cone sleeve 810 and the rotating shaft 807. The clamping cone sleeve 810 can move up and down to push the jaws 811 to clamp the bell-shaped shell 113, ensuring that the bell-shaped shell 113 can rotate stably. Two push cylinders 812 are installed on the fixed base plate 801. The piston rod of the push cylinder 812 can drive the lifting ring 813 to move up and down. The lifting ring 813 cooperates with the clamping cone sleeve 810 through the roller 814 to provide power for the lifting movement of the clamping cone sleeve 810.

[0050] In the component structure of the steel ball guiding mechanism 9, the lower part of the support flange shaft 901 is fixed on the table plate 101 of the workbench 1, the upper part of the support flange shaft 901 is installed at the bottom of the small ball screening channel 902, the bottom of the large ball screening channel 903 is connected and fixed to the top of the small ball screening channel 902, and the large ball screening fixture 904 and the small ball screening fixture 905 are respectively installed in the large ball screening channel 903 and the small ball screening channel 902. The lower part of the welding support leg 906 is fixedly mounted on the platform 101 of the workbench 1. The upper part of the welding support leg 906 is mounted on the support plate 907. The steel ball dispensing cylinder 908, the steel ball feeding cylinder 909, and the steel ball pushing cylinder 910 are fixedly mounted on the support plate 907. The piston rod of the steel ball dispensing cylinder 908 can drive the steel ball dispensing mechanism 911 to move back and forth. The piston rod of the steel ball feeding cylinder 909 can drive the steel ball feeding mechanism 912 to move back and forth. The piston rod of the steel ball pushing cylinder 910 can drive the steel ball pushing mechanism 913 to slide back and forth in the steel ball channel of the steel ball feeding mechanism 912. The steel ball dispensing mechanism 911 and the steel ball feeding mechanism 912 can move relative to the support plate 907 through the first guide rail 914 and the second guide rail 915, respectively.

[0051] Steel ball 114 enters from the feed inlet of large ball screening channel 903 and rolls forward along the large ball screening channel 903. When passing through large ball screening fixture 904, if the diameter of steel ball 114 is greater than the maximum allowable diameter of steel ball 114, steel ball 114 continues to roll forward and enters large ball dropping channel 916, and finally enters large ball collection box 917; if the diameter of steel ball 114 is less than or equal to the maximum allowable diameter of steel ball 114, steel ball 114 falls down through the opening of large ball screening fixture 904 into small ball screening channel 902 and rolls forward along small ball screening channel 902. When passing through the ball screening fixture 905, if the diameter of the steel ball 114 is smaller than the minimum allowable diameter, the steel ball 114 falls downward through the opening of the ball screening fixture 905 into the ball feeding channel 918 and finally enters the ball collection box 919; if the diameter of the steel ball 114 is greater than or equal to the minimum allowable diameter, the steel ball 114 continues to roll forward and enters the steel ball distributing mechanism 911. The piston rod of the steel ball distributing cylinder 908 retracts, driving the steel ball distributing mechanism 911 to move backward.

[0052] Each time the steel ball distribution mechanism 911 moves, only one steel ball 114 enters the steel ball distribution mechanism 911. The piston rod of the steel ball feeding cylinder 909 extends, driving the steel ball feeding mechanism 912 to move forward, so that the steel ball channel of the steel ball distribution mechanism 911 is aligned with the steel ball channel of the steel ball feeding mechanism 912. The steel ball 114 enters the steel ball channel of the steel ball feeding mechanism 912 downward. The piston rod of the steel ball pushing cylinder 910 extends, driving the steel ball pushing mechanism 913 to slide forward, pushing out the steel ball 114. The steel ball 114 then passes through the steel ball window 116 of the retainer and engages with the star-shaped ball track 115, completing the assembly of the fixed end section steel ball 114.

[0053] The drive shaft fixed end section assembly equipment features a novel structure, high precision, stable operation, simple operation, and high success rate. It achieves fully automatic orientation and positioning, automatic steel ball screening, and automatic assembly functions with a single loading, effectively reducing reliance on operator experience, greatly reducing operator labor intensity, improving product assembly quality and efficiency, and overcoming the defects of traditional assembly processes. It is a brand-new type of automated equipment.

[0054] The foregoing has provided a detailed description of the drive shaft fixed end section assembly equipment provided by the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A drive shaft fixed end section assembly device, characterized in that, It includes a workbench and a workstation transfer mechanism set on the ground. The workbench has a horizontally arranged platform on top, and a support back plate is vertically arranged on the top surface of the platform. The platform is equipped with a star-shaped sleeve positioning mechanism that can be adapted to the positioning and disassembly of the star-shaped sleeve, a cage positioning mechanism that can be adapted to the positioning and disassembly of the cage, and a steel ball guiding mechanism that can guide the steel ball to be aligned and installed into the star-shaped sleeve track. The platform has a working hole that runs through it in the vertical direction. The platform is also equipped with a bell-shaped shell rotating mechanism that can drive the bell-shaped shell to rotate. The bell-shaped shell rotating mechanism and the working hole are aligned in the vertical direction. The support back plate is provided with a bell-shaped shell orientation mechanism adapted to the bell-shaped shell. The support back plate is also provided with a star-shaped sleeve swing mechanism that can drive the star-shaped sleeve to swing back and forth around a horizontal swing axis. The extension direction of the horizontal swing axis is perpendicular to the guiding direction of the steel ball by the steel ball guiding mechanism. The workstation transfer mechanism includes a base fixedly installed on the ground, and a robotic arm capable of reciprocating swing and lifting is installed on the base. The working end of the robotic arm is equipped with a first gripper fixture capable of clamping a bell-shaped shell and a second gripper fixture capable of clamping a star-shaped sleeve and a cage. The bell-shaped shell orientation mechanism includes a bell-shaped shell positioning fixture located at the bottom and a front fixed plate fixedly mounted on the support back plate. An orientation moving plate is vertically mounted on the front fixed plate. An orientation servo motor, an orientation reducer, an orientation shaft, and an orientation fixture are driven on the orientation moving plate. The orientation fixture can be aligned and adapted to the ball track of the bell-shaped shell.

2. The drive shaft fixed end section assembly equipment as described in claim 1, characterized in that, The star-shaped sleeve swing mechanism includes a rear fixed plate fixed to the support back plate. A swing moving plate is raised and lowered on the rear fixed plate. A swing motor, a swing reducer, a swing shaft, and a swing fixture are arranged sequentially along the horizontal direction on the swing moving plate. The swing fixture can be aligned and inserted into the inner hole of the star-shaped sleeve.

3. The drive shaft fixed end section assembly equipment as described in claim 1, characterized in that, The bell-shaped shell rotation mechanism includes a horizontally arranged fixed base plate and a vertically arranged fixed plate on one side of the fixed base plate. The fixed base plate is suspended from the bottom of the platform by a fixed column. The fixed base plate is equipped with a rotary motor, a rotary reducer and a rotary shaft that are in transmission cooperation. The top of the rotary shaft is coaxially arranged with a bell-shaped shell support fixture that can be adapted to the bell-shaped shell.

4. The drive shaft fixed end section assembly equipment as described in claim 3, characterized in that, The outer periphery of the rotating shaft is coaxially fitted with a clamping cone sleeve, the outer diameter of which increases from bottom to top. The clamping cone sleeve is provided with a jaw that is aligned and adapted to the rotating shaft to clamp the bell-shaped shell. The outer side of the clamping cone sleeve is provided with a lifting ring that can abut and move in conjunction with the outer wall of the clamping cone sleeve. The fixed base plate is provided with a push cylinder that can drive the lifting ring to move back and forth.

5. The drive shaft fixed end section assembly equipment as described in claim 1, characterized in that, The steel ball guiding mechanism includes a small ball screening channel located above the platform. A supporting flange shaft is connected between the bottom of the small ball screening channel and the top surface of the platform. A small ball screening fixture is provided inside the small ball screening channel. The top of the small ball screening channel is connected to the large ball screening channel, and the large ball screening channel is equipped with a large ball screening fixture. The downstream of both the large ball screening fixture and the small ball screening fixture are connected to a collection box via a material discharge channel.

6. The drive shaft fixed end section assembly equipment as described in claim 1, characterized in that, The star-shaped sleeve positioning mechanism includes a star-shaped sleeve positioning base fixed on the table, star-shaped sleeve positioning fixtures coaxially and symmetrically arranged on both sides of the star-shaped sleeve positioning base, and a star-shaped sleeve positioning cylinder capable of driving the two star-shaped sleeve positioning fixtures to move towards or away from each other. The star-shaped sleeve positioning fixtures can be aligned and engaged with the star-shaped sleeve track.

7. The drive shaft fixed end section assembly equipment as described in claim 1, characterized in that, The cage positioning mechanism includes a cage positioning base mounted on a platform, cage positioning fixtures coaxially and symmetrically arranged on both sides of the cage positioning base, and a cage positioning cylinder capable of driving the two cage positioning fixtures to move towards or away from each other. The cage positioning fixtures can be aligned and engaged with the steel ball window of the cage.

8. The drive shaft fixed end section assembly equipment as described in claim 1, characterized in that, The support back plate includes a vertically arranged upright plate and two supports fixedly mounted on the platform. The two supports are symmetrically arranged on both sides of the upright plate, and the bottom of the supports has an adjustment component that can adjust the position of the upright plate in the horizontal direction.

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