Multi-point adjustable planetary carrier positioning device

Abstract

The utility model discloses a kind of multi-point adjustable planetary carrier positioning devices, including tool base plate, two parallelly fixed first linear positioning mechanism on it, two second linear positioning mechanism slidingly arranged between first linear positioning mechanism, clamp module slidable along second linear positioning mechanism and the magnetic attraction module being arranged below clamp module, first, second linear positioning mechanism respectively includes the guide rail of linear motor module group, each linear motor module group can be independently controlled, drive clamp module is positioned in X and Y plane, magnetic attraction module is electromagnet structure, can be adsorbed fixed on tool base plate, zero point positioning chuck is equipped in clamp module top, built-in pneumatic locking mechanism, magnetic attraction module and clamp module are elastically lifted by sliding axle-sliding cavity structure between, and there is the scraper of quick change for pushing away scrap;The utility model realizes the high-precision, automatic positioning of workpiece, has the advantages of high versatility and being easy to maintain.

Description

Technical Field

[0001] This utility model relates to the technical field of machining fixtures, specifically a multi-point adjustable planetary carrier positioning device. Background Technology

[0002] In the machining process of engineering machinery parts, planetary carriers often require multi-point precise positioning and stable clamping. The currently widely used lead screw module positioning method has significant shortcomings: firstly, the number of positioning points is limited, making it difficult to meet the multi-point clamping requirements of complex workpieces; secondly, it lacks effective tensioning function, resulting in insufficient clamping stability; thirdly, the lead screw structure itself requires protective devices, occupying a large space, limiting the positioning stroke, and the lead screw nut assembly has a complex structure and high maintenance costs; furthermore, existing fixtures have poor versatility, often requiring the redesign and manufacture of specialized tooling for each workpiece change, severely hindering the development of production line automation. Therefore, there is an urgent need for an automated planetary carrier positioning device that can achieve multi-point precise positioning, automatic tensioning, and high versatility to improve machining efficiency and accuracy. Utility Model Content

[0003] The purpose of this invention is to provide a multi-point adjustable planetary carrier positioning device that can be adjusted according to the workpiece size to achieve multi-point positioning and improve machining accuracy and efficiency.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a multi-point adjustable planetary carrier positioning device, including a tooling base plate and two first linear positioning mechanisms that are parallel to each other and fixed on the tooling base plate;

[0005] Two second linear positioning mechanisms are slidably disposed between two first linear positioning mechanisms, and the two second linear positioning mechanisms are arranged in parallel.

[0006] The clamping module is configured to slide along the length of the second linear positioning mechanism;

[0007] A magnetic suction module is disposed below the clamping module and is used to adhere to the tooling base plate, thereby restricting the sliding of the clamping module;

[0008] The first linear positioning mechanism includes a first linear guide rail and two first linear motor modules spliced ​​on the first linear guide rail. The second linear positioning mechanism includes a second linear guide rail and two second linear motor modules spliced ​​on the second linear guide rail. The first linear motor module and the second linear motor module can be controlled independently to drive the fixture module to move and position along the X and Y directions on the tooling base plate.

[0009] By setting up two sets of linear positioning mechanisms, the fixture module can be accurately positioned arbitrarily in the X and Y directions in the plane. The positioning speed is fast and the accuracy is high, laying the foundation for automated processing. The magnetic module can quickly attract and fix the entire module after positioning, ensuring the overall rigidity and stability of the positioning device.

[0010] In a further technical solution, the first linear motor module includes a first linear motor stator and a first linear motor mover. The first linear motor stator is fixed on the first linear guide rail. Two first linear motor stators on the same first linear positioning mechanism are spliced ​​together along the length of the first linear guide rail. The first linear motor mover is slidably mounted on the first linear motor stator, and a slider is fixed on the first linear motor mover.

[0011] By using a structure with a fixed stator and a slider, the second linear positioning mechanism achieves stable and smooth movement along the first direction.

[0012] In a further technical solution, the second linear guide rail is fixed between the two sliders, the second linear motor module includes a second linear motor mover and a second linear motor stator, the second linear motor stator is fixed on the second linear guide rail, the two second linear motor stators on the same second linear positioning mechanism are spliced ​​together along the length direction of the second linear guide rail, the second linear motor mover is slidably mounted on the second linear motor stator, and the second linear motor mover is fixed to the clamp module.

[0013] The fixture module achieves independent and precise drive along the second direction. Through a two-stage transmission structure, the control logic is simple, and the coordinated operation enables precise positioning of the plane.

[0014] In a further technical solution, the magnetic suction module is fixedly connected to the clamp module, and a through slot is provided on the magnetic suction module, through which the second linear motor module and the second linear guide rail can pass.

[0015] A through slot is provided on the magnetic module, allowing the second linear guide rail and the second linear motor module to pass through it. This design allows the size of the magnetic module to be made larger without being limited by the width of the guide rail, thus increasing the magnetic area and attraction force, while making the overall structure more compact.

[0016] In a further technical solution, the magnetic module is an electromagnet structure that can be attracted to the tooling base plate after being energized.

[0017] Using an electromagnet as the magnetic attraction module, the attraction and release are controlled by whether or not it is energized, which realizes fast and automatic locking and unlocking without manual intervention, greatly improving the efficiency of changing shapes.

[0018] A further technical solution is that a zero-point positioning chuck is fixed on the top surface of the fixture module, and a locking mechanism is provided inside the zero-point positioning chuck to cooperate with the positioning rivets to fix the workpiece.

[0019] By employing a zero-point positioning chuck in conjunction with a pneumatic locking mechanism, rapid clamping and release of workpieces are achieved. Combined with the rapid adjustment capability of the positioning system, this enables the entire tooling system to quickly change over.

[0020] In a further technical solution, four magnetic modules are provided, and each of the four magnetic modules can be controlled independently.

[0021] Equipped with four independently controllable magnetic suction modules, it provides stable support and is suitable for medium-sized or complex workpieces, offering strong versatility.

[0022] In a further technical solution, a sliding cavity is provided on the bottom surface of the clamp module, a sliding shaft is fixed on the top surface of the magnetic suction module, the sliding shaft is slidably inserted into the sliding cavity, a fixing plate is fixed inside the sliding cavity, a limit plate is fixed at the top of the sliding shaft, and a first spring is provided between the limit plate and the fixing plate.

[0023] The sliding shaft, sliding cavity, and spring form an elastic lifting structure, which creates a gap between the magnetic module and the base plate during movement, avoiding frictional wear; while during adsorption, it can overcome the elastic force to fit tightly, ensuring the reliability of adsorption and extending the life of the equipment.

[0024] In a further technical solution, the magnetic module has a first groove and a second groove on its side. A slide plate is slidably disposed in the second groove, and a scraper is fixed on the slide plate. A positioning pin is disposed in the first groove. The positioning pin can be inserted into the second groove and slidably connected with the slide plate. A second spring is sleeved on the positioning pin. One end of the second spring abuts against the top wall of the second groove, and the other end abuts against the slide plate.

[0025] The scraper structure remains in constant contact with the base plate surface under the action of the spring, effectively removing chips and impurities along the path of the positioning module during its movement. This prevents foreign objects from affecting the final adsorption effect of the magnetic module, thus improving the reliability and stability of the operation.

[0026] In a further technical solution, an elbow is fixed to the top of the positioning pin, and a retaining plate is fixed inside the first sliding groove. The elbow can be rotatably engaged with the bottom of the retaining plate.

[0027] The quick-release structure using locating pins and clamping plates makes it very easy to replace the scraper after it wears out, greatly reducing the difficulty and cost of later maintenance.

[0028] In summary, this utility model has the following beneficial effects:

[0029] Automation and high precision: Through the coordinated control of two sets of linear motor modules, the fixture module can be quickly and accurately positioned at any position in the two-dimensional plane, meeting the high requirements of modern automated processing for tooling;

[0030] Quick changeover and high versatility: Combining electromagnetic adsorption locking and zero-point positioning system, it realizes quick switching and clamping of different workpiece tooling. One positioning device can adapt to the production of multiple products, greatly improving equipment utilization and application range.

[0031] Stable structure and high reliability: The elastic lifting structure of the magnetic module ensures smooth and interference-free movement, as well as a rigid connection when locking. The design of the liftable scraper effectively solves the problem of interference from processing debris, ensuring positioning accuracy and long-term stability of operation.

[0032] Easy to maintain: The scraper and other vulnerable parts adopt a quick-release design, which makes maintenance and replacement simple and reduces the total life cycle cost of the equipment. Attached Figure Description

[0033] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0034] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0035] Figure 2 This is a three-dimensional structural diagram of the clamp module and magnetic suction module of this utility model;

[0036] Figure 3 This is a front view of the clamp module and magnetic suction module of this utility model;

[0037] Figure 4 This is a partial cross-sectional view of the clamp module and magnetic suction module in this utility model;

[0038] Figure 5 This is a utility model Figure 4 Enlarged view of point A in the middle;

[0039] Figure 6 This is a utility model Figure 4 Enlarged view of point B in the middle;

[0040] In the diagram: 10. Tooling base plate; 20. First linear positioning mechanism; 21. First linear guide rail; 22. Slider; 30. Second linear positioning mechanism; 31. Second linear guide rail; 40. Sliding shaft; 41. Limiting plate; 42. First spring; 43. Fixing plate; 50. Fixture module; 51. Sliding cavity; 52. Zero-point positioning chuck; 60. Magnetic module; 61. Through groove; 62. Second slide groove; 63. Second spring; 64. Positioning pin; 65. Elbow; 66. Clamping plate; 67. First slide groove; 71. Scraper; 72. Slide plate. Detailed Implementation

[0041] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0042] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0043] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] like Figures 1-6 As shown, a multi-point adjustable planetary carrier positioning device includes a tooling base plate 10. Two first linear positioning mechanisms 20 are symmetrically arranged in parallel on the tooling base plate 10. Two second linear positioning mechanisms 30 are slidably arranged between the two first linear positioning mechanisms 20. The two second linear positioning mechanisms 30 are arranged in parallel and are perpendicular to the first linear positioning mechanisms 20 in the horizontal direction.

[0047] The first linear positioning mechanism 20 includes a first linear guide rail 21 and two first linear motor modules fixedly spliced ​​on the first linear guide rail 21. The second linear positioning mechanism 30 includes a second linear guide rail 31 and two second linear motor modules fixedly spliced ​​on the second linear guide rail 31. Both the two first linear motor modules and the two second linear motor modules can be controlled independently.

[0048] Two first linear guide rails 21 are provided and can be fixedly installed on the top surface of the tooling base plate 10 by bolts. The two first linear guide rails 21 are arranged in parallel on both sides of the top surface of the tooling base plate 10. The first linear motor module includes a primary and a secondary. The primary is the first linear motor stator and the secondary is the first linear motor mover. The first linear motor stator is fixed on the first linear guide rail 21 and spliced ​​together along the length of the first linear guide rail 21. The first linear motor mover is installed on the first linear motor stator and a slider 22 is fixed on the first linear motor mover.

[0049] The two ends of the second linear guide rail 31 are fixed on the two sliders 22. There are two second linear guide rails 31, and the two second linear guide rails 31 are arranged in parallel. Each second linear guide rail 31 is provided with two second linear motor modules fixedly spliced ​​together. The second linear motor module includes a second linear motor mover and a second linear motor stator. The second linear motor stator is fixed on the second linear guide rail 31 and spliced ​​together along the length direction of the second linear guide rail 31. The second linear motor mover is installed on the second linear motor stator. A clamping module 50 is fixed on the second linear motor mover. Through the movement of the first linear motor module and the second linear motor module, the clamping module 50 is positioned in the X and Y directions on the tooling base plate 10.

[0050] The splicing method of the two first linear motor modules on the first linear guide rail 21 and the splicing method of the two second linear motor modules on the second linear guide rail 31 are as follows:

[0051] The stators of the first linear motors of two first linear motor modules on the same first linear guide rail 21 are fixed in series on the first linear guide rail 21. A guide structure can be fixed on the first linear guide rail 21. The guide structure has a guide groove. A protrusion that can cooperate with the guide groove is set at the bottom of the first linear motor stator. The outline of the protrusion is adapted to the guide groove. The protrusion can be inserted into the guide groove. The guide groove can be T-shaped. One end of the stator of the two first linear motors is inserted into the guide groove respectively for docking. Threaded holes can be set on the guide groove. The same threaded holes are also set on the protrusion. When the protrusion is inserted into the guide groove, the threaded holes on the protrusion coincide with the threaded holes on the guide groove. Then, screws are inserted to fix the protrusion and the guide groove, thereby fixing the two first linear motor stators together.

[0052] The splicing method can also be achieved by interference fit between shaft and hole. For example, a splicing shaft is fixed at the bottom of one end of one of the first linear motor stators, and a splicing hole is fixed at one end of the other first linear motor stator. The two first linear motor stators are spliced ​​together by inserting the splicing shaft into the splicing hole, and then the two first linear motor stators are fixed on the first linear guide 21 by bolts.

[0053] The splicing method can also be a dovetail groove fit. For example, a dovetail groove is opened at the bottom of one end of the first linear motor stator, and a splicing block is set at the bottom of one end of the other first linear motor stator. The two first linear motor stators are fixedly spliced ​​together by inserting the splicing block into the dovetail groove.

[0054] The splicing method of the second linear motor module is the same as that of the first linear motor module.

[0055] In one embodiment, the bottom of the clamp module 50 is provided with a magnetic suction module 60 and the top of the magnetic suction module 60 is provided with a zero-point positioning chuck 52. The magnetic suction module 60 is fixed to the clamp module 50. The magnetic suction module 60 is provided with a through groove 61 so that the second linear motor module and the second linear guide rail 31 can pass through the through groove 61 and pass through the magnetic suction module 60.

[0056] In one implementation, the magnetic module 60 is an electromagnet structure that can be attached to the tooling base plate after being energized.

[0057] In one implementation, the zero-point positioning chuck 52 is equipped with a locking mechanism, which can be a pneumatic locking mechanism. The pneumatic locking mechanism is controlled by an external pneumatic valve and is used in conjunction with the positioning pull stud to fix the workpiece. The zero-point positioning chuck 52 can be selected from various different models according to the actual workpiece processing situation.

[0058] In one embodiment, four magnetic modules 60 are provided, and the four magnetic modules 60 can be controlled independently to achieve four-point independent positioning.

[0059] In one embodiment, the tooling base plate 10 is made of metal and is used in conjunction with the magnetic module 60 to achieve adsorption and fixation.

[0060] In one embodiment, the difference between this embodiment and the above embodiment is that the magnetic suction module 60 is vertically and elliptically mounted at the bottom of the clamping module 50, and four scrapers 71 spliced ​​together are detachably installed on the outer surface of the magnetic suction module 60. The four scrapers 71 surround each other and cover the bottom part of the magnetic suction module 60, so that when the magnetic suction module moves in the four directions of front, back, left and right, the scrapers 71 can push away the processing debris on the tooling base plate 10 and prevent it from getting stuck in the gap between the bottom surface of the magnetic suction module 60 and the tooling base plate.

[0061] Specifically, the bottom surface of the clamp module 50 has four evenly distributed sliding cavities 51, and the top surface of the magnetic module 60 has four evenly distributed sliding shafts 40. The sliding shafts 40 are slidably inserted into the sliding cavities 51, and a fixing plate 43 is fixed inside the sliding cavity 51. The fixing plate 43 is fixedly connected to the clamp module 50. Specifically, after the sliding shaft 40 is inserted into the sliding cavity 51, the fixing plate 43 can be welded to the clamp module 50 by post-welding. A limiting plate 41 is fixed on the top surface of the sliding shaft 40. The limiting plate 41 and... A first spring 42 is installed between the fixing plates 43. When the clamping module 50 and the magnetic module 60 are assembled together, and the magnetic module 60 is not powered, the magnetic module 60 moves upward toward the clamping module 50 under the elastic force of the first spring 42. There is a small distance, for example, 0.2mm, between the bottom surface of the magnetic module 60 and the top surface of the tooling base plate 10. When the magnetic module 60 is powered, the limiting plate 41 presses on the fixing plate 43, and the magnetic module 60 is attracted to the tooling base plate 10, so that the clamping module 50 and the magnetic module 60 are fixed on the tooling base plate 10.

[0062] A first sliding groove 67 is provided on each of the four sides of the magnetic suction module 60. A second sliding groove 62 is provided on the lower side of each first sliding groove 67. A sliding plate 72 is slidably disposed in the second sliding groove 62. The sliding plate 72 is fixed to the scraper 71. A positioning pin 64 is provided in the first sliding groove 67 and can extend downward and be inserted into the second sliding groove 62. The positioning pin 64 can slide and be inserted into the sliding plate 72. A second spring 63 is provided on the outer periphery of the part of the positioning pin 64 located in the second sliding groove 62. One end of the second spring 63 abuts against the top wall of the second sliding groove 62, and the other end abuts against the top surface of the sliding plate 72. An elbow 65 is fixed at the top of the positioning pin 64. A locking plate 66 is fixed in the first sliding groove 67. The elbow 65 can rotate to lock the locking plate 66 and restrict the up and down movement of the positioning pin 64.

[0063] In one embodiment, the bottom of the scraper 71 may be densely arranged high-temperature resistant bristles to facilitate the pushing away of processing debris.

[0064] A method for using a multi-point adjustable planetary carrier positioning device:

[0065] Position adjustment: Control the first linear motor module to work, adjust the two second linear guide rails 31 to move to the target position, and then control the second linear motor module to work, drive the clamp module 50 and the magnetic suction module 60 to move to the target position, thereby adjusting the position of the four clamp modules 50;

[0066] Then the workpiece is installed on the zero-point positioning chuck 52 and locked. At the same time, the four magnetic modules 60 are powered on and attached to the tooling base plate 10.

[0067] When adjusting the position of the clamping module 50, the elastic force of the first spring 42 will cause the limiting plate 41 to spring upward, creating a gap between the bottom surface of the magnetic module 60 and the top surface of the tooling base plate 10, reducing friction during sliding. At the same time, due to the action of the second spring 63, the scraper 71 is pressed downward, causing the scraper 71 to stick to the surface of the tooling base plate 10. When adjusting the position of the clamping module 50, the machining debris on the tooling base plate 10 is pushed away, preventing the machining debris from entering the gap between the magnetic module 60 and the tooling base plate 10, causing unstable adsorption.

[0068] After the scraper 71 has been used for a period of time, the clamping plate 66 can be removed from the elbow 65 by rotating the elbow 65, and the positioning pin 64 can be pulled upward to disengage the positioning pin 64 from the second slide groove 62, so that the scraper 71 can be replaced.

[0069] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0070] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0071] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A multi-point adjustable planetary carrier positioning device, comprising a tooling base plate (10), characterized in that, Two first linear positioning mechanisms (20) are parallel to each other and fixed on the tooling base plate (10); two second linear positioning mechanisms (30) are slidably disposed between the two first linear positioning mechanisms (20) and the two second linear positioning mechanisms (30) are arranged in parallel. The clamp module (50) is configured to slide along the length direction of the second linear positioning mechanism (30); A magnetic suction module (60) is disposed below the clamping module (50) and is used to adhere to the tooling base plate (10) to restrict the sliding of the clamping module (50); The first linear positioning mechanism (20) includes a first linear guide rail (21) and two first linear motor modules spliced ​​on the first linear guide rail (21). The second linear positioning mechanism (30) includes a second linear guide rail (31) and two second linear motor modules spliced ​​on the second linear guide rail (31). The first linear motor module and the second linear motor module can be controlled independently to drive the fixture module (50) to move and position along the X and Y directions on the tooling base plate (10).

2. The multi-point adjustable planetary carrier positioning device according to claim 1, characterized in that, The first linear motor module includes a first linear motor stator and a first linear motor mover. The first linear motor stator is fixed on the first linear guide rail (21). Two first linear motor stators on the same first linear positioning mechanism (20) are spliced ​​together along the length of the first linear guide rail (21). The first linear motor mover is slidably mounted on the first linear motor stator. A slider (22) is fixed on the first linear motor mover.

3. The multi-point adjustable planetary carrier positioning device according to claim 2, characterized in that, The second linear guide rail (31) is fixed between the two sliders (22). The second linear motor module includes a second linear motor mover and a second linear motor stator. The second linear motor stator is fixed on the second linear guide rail (31). The two second linear motor stators on the same second linear positioning mechanism (30) are spliced ​​together along the length direction of the second linear guide rail (31). The second linear motor mover is slidably mounted on the second linear motor stator. The second linear motor mover is fixed to the clamp module (50).

4. The multi-point adjustable planetary carrier positioning device according to claim 1, characterized in that, The magnetic suction module (60) is fixedly connected to the clamp module (50). The magnetic suction module (60) has a through slot (61) through which the second linear motor module and the second linear guide rail (31) can pass through the through slot (61).

5. The multi-point adjustable planetary carrier positioning device according to claim 1, characterized in that, The magnetic module (60) is an electromagnet structure that can be attracted to the tooling base plate (10) after being energized.

6. The multi-point adjustable planetary carrier positioning device according to claim 1, characterized in that, The top surface of the clamp module (50) is fixed with a zero-point positioning chuck (52), and the zero-point positioning chuck (52) is provided with a locking mechanism to cooperate with the positioning rivet to fix the workpiece.

7. The multi-point adjustable planetary carrier positioning device according to claim 1, characterized in that, The magnetic attraction module (60) is provided in four parts, and the four magnetic attraction modules (60) can be controlled independently.

8. The multi-point adjustable planetary carrier positioning device according to claim 1, characterized in that, The clamp module (50) has a sliding cavity (51) on its bottom surface, and the magnetic suction module (60) has a sliding shaft (40) fixed on its top surface. The sliding shaft (40) is slidably inserted into the sliding cavity (51). A fixing plate (43) is fixed inside the sliding cavity (51). A limiting plate (41) is fixed at the top of the sliding shaft (40). A first spring (42) is provided between the limiting plate (41) and the fixing plate (43).

9. The multi-point adjustable planetary carrier positioning device according to claim 1, characterized in that, The magnetic module (60) has a first groove (67) and a second groove (62) on its side. A slide plate (72) is slidably disposed in the second groove (62). A scraper (71) is fixed on the slide plate (72). A positioning pin (64) is disposed in the first groove (67). The positioning pin (64) can be inserted into the second groove (62) and slidably connected with the slide plate (72). A second spring (63) is sleeved on the positioning pin (64). One end of the second spring (63) abuts against the top wall of the second groove (62), and the other end abuts against the slide plate (72).

10. The multi-point adjustable planetary carrier positioning device according to claim 9, characterized in that, The top of the positioning pin (64) is fixed with an elbow (65), and a retaining plate (66) is fixed in the first slide groove (67). The elbow (65) can be rotated and engaged under the retaining plate (66).

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