Universal shaft positioning machine tool
By improving the clamping and reduction components of the universal joint machining center, the problems of unstable clamping and insufficient torque were solved, enabling stable clamping and efficient drilling of 10-byte parts, and adapting to processing requirements of different sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI YIWEI SURFACE ENG TECH CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-06-16
AI Technical Summary
The clamping effect of the existing universal joint machining center is not good, and the adjustable range of motor torque is small, which makes the universal joint parts easy to loosen or shift during the machining process, affecting stability and reliability.
The design incorporates a clamping assembly, including a 45° angled clamping block and a reduction gear assembly. The clamping block can fit into the four corners of the ten-byte shape, and the position or angle of the clamping assembly can be adjusted to accommodate different sizes. The reduction gear assembly improves the torque and speed ratio of the drill bit through a planetary gear and sun gear structure, ensuring drilling stability.
It improves the stability and drilling accuracy of decimal parts, reduces jamming or drill breakage caused by insufficient torque, and adapts to the machining needs of decimal parts of different sizes.
Smart Images

Figure CN224359393U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of universal joint machining technology, and in particular to a universal joint positioning machining machine tool. Background Technology
[0002] Universal joint machining is the process of manufacturing universal joints, which involves assembling multiple precision components into a mechanical structure that enables power transmission between different shafts through spherical connections. This process is complex, especially since the machining precision requirements for the universal joint shaft are high. Universal joint machining involves numerous steps, including turning, boring, nitriding, quenching, and grinding, and also requires proper heat treatment to ensure product performance and quality.
[0003] A search revealed a Chinese utility model patent with patent number CN216461893U, which discloses a multi-directional machining tool for universal joints. Compared with existing technologies, this utility model patent with Chinese patent number CN216461893U achieves the following: the extension of the output end of the fourth electric telescopic rod drives two sets of clamping plates to clamp the universal joint part; the setting of the third electric telescopic rod allows the universal joint part to be adjusted vertically to adapt to the drill bit, improving drilling accuracy; and the rotation of two sets of servo motors drives two sets of moving seats on the outer wall of the screw to move relative to each other. The drill bit moves closer and drills into the 10-byte part. The flushing pipe flushes the four journals of the 10-byte part, flushing the drilling waste into the mounting cavity and draining it through the drain valve to prevent the waste from interfering with the drilling. The output end of the fourth electric telescopic rod retracts, while the extension of the output ends of the first and second electric telescopic rods drives the electromagnetic chuck to hold the drilled 10-byte part. The retraction of the output end of the first electric telescopic rod and the de-energization of the electromagnetic chuck allow the 10-byte part to fall into the storage basket.
[0004] However, in actual use, the above-mentioned device has gaps between the two sets of clamping plates and the ten-piece during the clamping process, making it difficult to fit perfectly and reducing the clamping effect. This may cause the ten-piece part to loosen or shift when subjected to force, affecting the overall stability and reliability. At the same time, the drill bit is directly driven by a motor. During use, the adjustable range of motor torque may be small, and the clamping effect of the clamping plates may be poor, which may cause the workpiece to loosen. Therefore, a universal joint positioning machining tool is proposed. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as poor clamping effect of the clamping plate and small adjustable range of motor torque, and to propose a universal joint positioning machining tool.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A universal joint positioning machining tool includes a support plate. The top of the support plate is provided with a clamping assembly of a clamping ten-element, and the bottom of the support plate is fixedly connected to a waste collection box. Multiple second motors are slidably arranged on the support plate. Drills are installed at the output ends of the second motors. A reduction assembly for increasing the torque of the drills is provided on the second motors. Cleaning nozzles are installed on the upper parts of the multiple second motors.
[0008] The above technical solution further includes:
[0009] The supporting sluice plate is equipped with a first motor on each of its two adjacent sides. The output end of the first motor is fixedly connected to a bidirectional lead screw, and the two bidirectional lead screws are rotatably connected to the supporting sluice plate.
[0010] The top of the supporting plate is slidably provided with multiple threaded bases, which are threadedly connected to the bidirectional lead screw, and are fixedly connected to the second motor.
[0011] The clamping assembly includes a support base threaded to the top of the support slotted plate, a support chuck fixedly connected to the side of the support base away from the support slotted plate, a guide plate fixedly connected to the inner side of the support chuck, a volute groove rotatably connected to the inner side of the support chuck, a gear disk fixedly connected to the bottom of the volute groove, and the gear disk rotatably connected to the support base.
[0012] The top circumference of the guide plate is provided with multiple guide grooves, and guide sliders are slidably arranged inside the guide grooves. Clamping blocks are fixedly connected to the top of each of the multiple guide sliders. A drive slider is fixedly connected to the side of the guide slider near the worm groove, and the drive slider is slidably connected to the worm groove.
[0013] The support base and the support chuck are rotatably connected by a drive bevel gear, which meshes with the gear disk. The outer circumference of the support chuck has a groove, which is slidably connected to the drive slider.
[0014] The speed reduction assembly includes a fixed disk fixedly connected to the side of the second motor near the output end. The fixed disk is rotatably connected to the output end of the second motor. A spur gear is fixedly connected to the output of the second motor, and the spur gear is rotatably connected to the fixed disk.
[0015] The inner side of the fixed disk is connected to multiple planetary gears, and the multiple planetary gears are connected to a sun gear. The sun gear is fixedly connected to the drill bit.
[0016] This utility model has the following beneficial effects:
[0017] In this invention, the clamping block design with a 45° angled clamping angle can better fit the four corners of the ten-byte, ensuring the stability of the ten-byte during drilling and reducing shaking and deviation. At the same time, the clamping block is adjustable to accommodate ten-bytes of different sizes. By adjusting the position or angle of the clamping component, effective clamping of ten-bytes of different specifications can be achieved.
[0018] In this invention, the deceleration component can reduce the rotational speed of the drill bit while increasing its output torque, thus giving the drill bit a stronger cutting ability when drilling. When facing large 10-byte machining operations, it reduces the phenomenon of jamming or drill breakage caused by insufficient torque. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of a universal joint positioning machining tool proposed in this utility model;
[0020] Figure 2 This is a schematic diagram of the first motor and bidirectional lead screw structure in this utility model;
[0021] Figure 3 This is a schematic diagram of the clamping component structure in this utility model;
[0022] Figure 4 This is a schematic diagram of the internal structure of the clamping component in this utility model;
[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the clamping component in this utility model;
[0024] Figure 6 This is a schematic diagram of the overall structure of the second motor in this utility model;
[0025] Figure 7 This is a schematic diagram of the deceleration component in this utility model.
[0026] In the diagram: 1. Support plate; 2. Waste collection box; 3. First motor; 4. Second motor; 5. Support chuck; 6. Two-way lead screw; 7. Threaded base; 8. Cleaning nozzle; 9. Sun gear; 10. Guide plate; 11. Guide groove; 12. Clamping block; 13. Groove; 14. Drive bevel gear; 15. Support base; 16. Guide slider; 17. Drive slider; 18. Spiral groove; 19. Gear disk; 20. Drill bit; 21. Fixed plate; 22. Circular gear; 23. Planetary gear. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Example 1
[0029] like Figures 1-7 As shown, the universal joint positioning machining tool proposed in this utility model includes a support plate 1. The top of the support plate 1 is provided with a clamping assembly of a clamping ten-element, and the bottom of the support plate 1 is fixedly connected with a waste collection box 2. Multiple second motors 4 are slidably arranged on the support plate 1. A drill bit 20 is installed at the output end of the second motor 4. A reduction assembly for increasing the torque of the drill bit 20 is provided on the second motor 4. A cleaning nozzle 8 is installed on the upper part of each of the multiple second motors 4.
[0030] During use, the clamping assembly is first adjusted to clamp the chuck according to the size of the decant. After clamping, the second motor 4 drives the drill bit 20 to drill the decant through the reduction assembly. At the same time, the cleaning nozzle 8 cleans the waste chips after drilling and cools the decant.
[0031] A first motor 3 is installed on both sides of the supporting drain plate 1. The output end of the first motor 3 is fixedly connected to a bidirectional lead screw 6. The two bidirectional lead screws 6 are rotatably connected to the supporting drain plate 1.
[0032] First, the first motor 3 set on both sides is driven. During the rotation of the first motor 3, the bidirectional lead screw 6 fixed to it rotates. At the same time, the support plate 1 supports the bidirectional lead screw 6.
[0033] Multiple threaded bases 7 are slidably provided on the top of the supporting plate 1. The threaded bases 7 are threadedly connected to the bidirectional lead screw 6, and the threaded bases 7 are fixedly connected to the second motor 4.
[0034] Immediately afterwards, during the rotation of the bidirectional lead screw 6, under the constraint of the support plate 1, the bidirectional lead screw 6 drives the threaded base 7 with symmetrical threads above to move in a guiding manner. At the same time, the threaded base 7 moves in opposite directions on the bidirectional lead screw 6, either moving closer to each other or moving further away from each other. The threaded base 7 drives the second motor 4 to move synchronously.
[0035] The clamping assembly includes a support base 15 threaded to the top of the support plate 1, a support chuck 5 fixedly connected to the side of the support base 15 away from the support plate 1, a guide plate 10 fixedly connected to the inner side of the support chuck 5, a volute groove 18 rotatably connected to the inner side of the support chuck 5, a gear plate 19 fixedly connected to the bottom of the volute groove 18, and a rotatable connection between the gear plate 19 and the support base 15.
[0036] When installing the clamping assembly, a positioning post is provided on the support plate 1, and the support base 15 is threadedly connected to the positioning post. At the same time, the support chuck 5 serves to support the guide plate 10 and the worm groove 18. The guide plate 10 is used to restrict the movement of the guide clamping block 12, the worm groove 18 is used to drive the clamping block 12 to move, and the gear plate 19 is used to drive the worm groove 18 to rotate around the center line.
[0037] The top circumference of the guide plate 10 is provided with multiple guide grooves 11. A guide slider 16 is slidably arranged inside the guide groove 11. A clamping block 12 is fixedly connected to the top of each guide slider 16. A drive slider 17 is fixedly connected to the side of the guide slider 16 near the worm groove 18. The drive slider 17 is slidably connected to the worm groove 18.
[0038] The support base 15 and the support chuck 5 are rotatably connected by a drive bevel gear 14, which meshes with the gear disk 19. The outer circumference of the support chuck 5 is provided with a groove 13, which is slidably connected to the drive slider 17.
[0039] In the above process, the rotation of the bevel gear 14 drives the gear disk 19 to rotate. At the same time, the gear disk 19 is fixed to the worm groove 18. Therefore, the rotation of the gear disk 19 drives the worm groove 18 to rotate synchronously. The worm groove 18 drives the slider 17 to perform arc motion. However, it is guided by the guide slider 16 and the guide groove 11. The guide groove 11 is designed with a 45° angle so that the clamping block 12 can fit with the four right angles of the cross, improving the clamping effect.
[0040] In this embodiment, the clamping block 12 is first moved 45° by the driving bevel gear 14 of the clamping component to clamp the ten-pieces of different sizes. Then, the first motor 3 on both sides drives the bidirectional lead screw 6 to drive the multiple drill bits 20 driven by the second motor 4 through the reduction assembly to drill holes in the ten-pieces.
[0041] Example 2
[0042] like Figures 1-7As shown, based on Embodiment 1, the deceleration assembly includes a fixed disk 21 fixedly connected to the side of the second motor 4 near the output end. The fixed disk 21 is rotatably connected to the output end of the second motor 4. A spur gear 22 is fixedly connected to the output of the second motor 4. The spur gear 22 is rotatably connected to the fixed disk 21.
[0043] Multiple planetary gears 23 are meshed on the inner side of the fixed disk 21, and a sun gear 9 is meshed among the multiple planetary gears 23. The sun gear 9 is fixedly connected to the drill bit 20.
[0044] In the aforementioned deceleration process, the output end of the second motor 4 drives the spur gear 22 to rotate inside the fixed disk 21. At the same time, during the rotation of the spur gear 22, it drives the multiple planetary gears 23 to rotate and move in a circular motion. Meanwhile, the relative motion of the multiple planetary gears 23 drives the sun gear 9 to rotate, thereby achieving deceleration and realizing low speed and high torque between the drill bits 20.
[0045] In this embodiment, the second motor 4 drives the reduction assembly to achieve low speed and high torque between the drill bits 20, while the cleaning nozzle 8 cleans the waste chips after drilling and cools the ten-inch tube.
[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A universal joint positioning machining tool, comprising a support plate (1), characterized in that, The top of the support plate (1) is provided with a clamping assembly for clamping ten-byte components. The bottom of the support plate (1) is fixedly connected with a waste collection box (2). Multiple second motors (4) are slidably arranged on the support plate (1). A drill bit (20) is installed at the output end of the second motor (4). A deceleration assembly for increasing the torque of the drill bit (20) is provided on the second motor (4). A cleaning nozzle (8) is installed on the upper part of each of the multiple second motors (4).
2. The universal joint positioning machining tool according to claim 1, characterized in that, The supporting sluice plate (1) is equipped with a first motor (3) on both adjacent sides. The output end of the first motor (3) is fixedly connected to a bidirectional lead screw (6). The two bidirectional lead screws (6) are rotatably connected to the supporting sluice plate (1).
3. The universal joint positioning machining tool according to claim 1, characterized in that, The top of the support plate (1) is slidably provided with multiple threaded bases (7), the threaded bases (7) are threadedly connected to the bidirectional lead screw (6), and the threaded bases (7) are fixedly connected to the second motor (4).
4. The universal joint positioning machining tool according to claim 1, characterized in that, The clamping assembly includes a support base (15) threaded to the top of the support plate (1), a support chuck (5) fixedly connected to the side of the support base (15) away from the support plate (1), a guide plate (10) fixedly connected to the inner side of the support chuck (5), a volute groove (18) rotatably connected to the inner side of the support chuck (5), a gear plate (19) fixedly connected to the bottom of the volute groove (18), and the gear plate (19) rotatably connected to the support base (15).
5. A universal joint positioning machining tool according to claim 4, characterized in that, The top circumference of the guide plate (10) is provided with multiple guide grooves (11), and guide sliders (16) are slidably arranged inside the guide grooves (11). Clamping blocks (12) are fixedly connected to the top of each of the multiple guide sliders (16). A drive slider (17) is fixedly connected to the side of the guide slider (16) near the worm groove (18). The drive slider (17) is slidably connected to the worm groove (18).
6. A universal joint positioning machining tool according to claim 5, characterized in that, The support base (15) and the support chuck (5) are rotatably connected by a drive bevel gear (14), which meshes with the gear disk (19). The outer circumference of the support chuck (5) is provided with a groove (13), which is slidably connected with the drive slider (17).
7. A universal joint positioning machining tool according to claim 1, characterized in that, The deceleration assembly includes a fixed disk (21) fixedly connected to the side of the second motor (4) near the output end. The fixed disk (21) is rotatably connected to the output end of the second motor (4). A spur gear (22) is fixedly connected to the output of the second motor (4). The spur gear (22) is rotatably connected to the fixed disk (21).
8. A universal joint positioning machining tool according to claim 7, characterized in that, The inner side of the fixed disk (21) is connected to a plurality of planetary gears (23), and the plurality of planetary gears (23) are connected to a sun gear (9), which is fixedly connected to the drill bit (20).