Rotatable assembly tool

By designing a rotatable assembly fixture, the problem of fixed assembly fixture position is solved, which simplifies operation, reduces costs and improves efficiency, and is suitable for the assembly of automotive parts.

CN224169699UActive Publication Date: 2026-04-28TIANJIN YAXING AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN YAXING AUTO PARTS CO LTD
Filing Date
2025-04-25
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The existing assembly fixtures are fixed in position and are not easy to move, which requires operators to repeatedly go back and forth to change work positions, increasing labor intensity and labor costs. In addition, they occupy a lot of space and affect production efficiency.

Method used

Design a rotatable assembly fixture that achieves horizontal rotation and limit control of the upper pallet through a rotating component and a limiting component, simplifying the operation process.

Benefits of technology

It reduces the labor intensity and labor costs of operators, improves production efficiency, reduces space occupation, and enhances the economic benefits of enterprises.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a rotatable assembly tool which comprises an upper supporting plate, a lower supporting plate, a lower supporting plate, a rotating shaft and a rotating shaft. The rotating assembly is arranged between the bottom plate and the upper supporting plate and used for enabling the upper supporting plate to horizontally rotate on the bottom plate; the limiting assembly is arranged on the side of the rotating assembly and used for controlling horizontal rotation of the upper supporting plate. According to the technical scheme, the upper supporting plate is rotatably arranged on the bottom plate, so that the problem that time and labor are wasted in the operation process due to the fact that an operator usually can complete assembly only by relying on repeated turning back, station changing or manpower increasing is solved, and the production efficiency is greatly improved on the basis that the product quality is fully guaranteed in the automobile part production process. The technical effects that the labor intensity of workers is relieved, the assembly operation difficulty of the workers is lowered, time and labor are saved in production, the production efficiency is improved, the labor cost of labor is lowered, and the economic benefits of enterprises are finally improved are achieved.
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Description

Technical Field

[0001] This utility model application belongs to the field of automotive parts assembly tooling technology, specifically relating to a rotatable assembly tooling. Background Technology

[0002] In the automobile production process, a large number of equipment and parts need to be assembled. When assembling some complex equipment or components, such as radiators, heat exchangers, and condensers, operators need to perform assembly and operation at different workstations. Current assembly fixtures are relatively fixed in position and not easily movable. Operators usually have to repeatedly move back and forth between workstations to complete the assembly, which is very time-consuming and labor-intensive. Alternatively, two or more workers may be assigned to work together to complete the assembly, which increases labor costs. Furthermore, when assembling extremely complex equipment, it occupies a considerable amount of workspace, hindering the full utilization of the production workshop.

[0003] Therefore, there is an urgent need to design a new type of assembly tooling to solve the above-mentioned technical problems, so that in the process of automotive parts production, while ensuring product quality, the technical effects of reducing the difficulty of assembly operations for operators and reducing the labor intensity of workers can be achieved. This will realize the goals of saving time and effort, improving production efficiency, and reducing labor costs, and ultimately improve the economic benefits of enterprises and promote economic development. Utility Model Content

[0004] This utility model application discloses a rotatable assembly fixture to solve the problems existing in the prior art.

[0005] To achieve the above objectives, this utility model provides a rotatable assembly fixture, comprising: an upper pallet rotatably mounted on a base plate for placing the product to be assembled; a rotating assembly disposed between the base plate and the upper pallet for enabling the upper pallet to rotate horizontally on the base plate; and a limiting assembly disposed to the side of the rotating assembly for controlling the horizontal rotation of the upper pallet.

[0006] Furthermore, the motion-limiting components include:

[0007] A connecting block is set on the base plate on the side of the rotating assembly. The connecting block has a rectangular structure, and a first insertion hole and a second insertion hole are formed on the symmetrical end face for insertion. Corresponding irregular through holes are formed on the other symmetrical end face. An insertion rod has one end passing through the first insertion hole and the second insertion hole in sequence, and can be inserted into the rotating assembly telescopically. A limiting rod is vertically inserted on the insertion rod, and the two ends of the limiting rod are respectively located in the two irregular through holes for adjusting the telescopic movement of the insertion rod. A compression spring is fitted on the insertion rod, and the diameter of the compression spring is larger than the diameter of the first insertion hole. One end of the compression spring abuts against the inner wall of the first insertion hole, and the other end abuts against the limiting rod.

[0008] Furthermore, both irregularly shaped through holes are horizontal T-shaped structures, symmetrically formed on both sides of the connecting block.

[0009] Furthermore, the limiting rod is a through-thread screw.

[0010] Furthermore, the rotating component includes:

[0011] A bearing sleeve is installed on the base plate. The bearing sleeve contains a bearing and a rotating shaft. The bearing is installed on the base plate, and the rotating shaft is mounted on the bearing. The upper end face of the rotating shaft is coaxially connected to the upper support plate. Both the rotating shaft and the outer edge of the bearing sleeve have limiting holes for inserting the insertion rod.

[0012] Furthermore, the upper support plate has several first connecting holes for fixed connection with the rotating shaft, and the corresponding position on the upper end face of the rotating shaft has threaded holes that match the first connecting holes.

[0013] Furthermore, the first connecting hole is a countersunk hole.

[0014] Furthermore, a second connecting hole for connecting with the rotating shaft and the base plate is provided at the center of the upper support plate, and connecting holes matching the second connecting hole are provided at corresponding positions on the rotating shaft and the base plate.

[0015] Furthermore, the base plate has an annular groove for accommodating and positioning the rotating component, and the annular groove has a first mounting hole for mounting the bearing sleeve. The bottom of the bearing sleeve has a hole that matches the first mounting hole.

[0016] Furthermore, the base plate has a second mounting hole for mounting the connecting block; the bottom of the connecting block has a mounting hole that matches the second mounting hole.

[0017] The advantages and positive effects of this utility model are:

[0018] 1. The rotatable assembly fixture disclosed in this utility model application has a rotating component installed at the bottom of the upper support plate, which allows the upper support plate to be rotatably mounted on the base plate. This solves the problem that operators usually have to rely on repeated back-and-forth movements, changing work positions, or adding manpower to complete the assembly, which is time-consuming and labor-intensive. In the process of automotive parts production, while ensuring product quality, it not only reduces the labor intensity of workers and the difficulty of assembly operations, but also improves production efficiency, saves time and labor, and reduces labor costs. Ultimately, it achieves the goal of improving the economic benefits of enterprises and promoting economic development. Moreover, the fixture has a simple structure, stable performance, and is easy to produce and operate.

[0019] 2. The rotatable assembly fixture disclosed in this utility model application has a telescopic insert rod for rotating components inserted into the connecting block. At the same time, a limiting rod installed on the connecting block is used to adjust the opening or closing of the insert rod, thereby realizing the control of the rotation of the upper pallet.

[0020] 3. The rotatable assembly fixture disclosed in this utility model application has a through-threaded screw as the limiting rod for inserting the plug, which is convenient for operators to operate.

[0021] 4. The rotatable assembly fixture disclosed in this utility model application has a countersunk hole in the first connecting hole on the upper plate, which avoids the bolt heads of the installed connecting bolts from being exposed and thus colliding with the product placed on the upper plate, causing damage to the product. This design optimizes the use effect of the fixture.

[0022] 5. The rotatable assembly fixture disclosed in this utility model application has an annular groove on its base plate for accommodating and positioning the rotating component, which can greatly prevent the fixture from shifting or other accidents during use.

[0023] 6. The rotatable assembly fixture disclosed in this utility model application can be designed with detachable connection methods for components such as base plate, upper support plate, connecting block, insertion rod, limit rod, rotating shaft, and bearing, which avoids the high cost of integral connection and welding, reduces the use cost of the fixture, and facilitates transportation.

[0024] 7. The technical solution disclosed in this utility model application has the advantages of simple structure, detachability, firm connection, stable performance, easy installation / use, easy manufacturing, and safety and reliability. Attached Figure Description

[0025] Figure 1 This is a perspective view of a rotatable assembly tool disclosed in this utility model application;

[0026] Figure 2 yes Figure 1 Exploded view;

[0027] Figure 3 This is a perspective view of the insert rod and the limiting rod in the limiting component of this utility model application;

[0028] Figure 4 This is a perspective view of the first embodiment of the connecting block in the limiting component of this utility model application;

[0029] Figure 5 yes Figure 4 Sectional view along the AA direction;

[0030] Figure 6 This is a planar sectional view of the first embodiment of the connecting block in its usage state;

[0031] Figure 7 This is a perspective sectional view of the first embodiment of the connecting block in its usage state;

[0032] Figure 8 This is a planar sectional view of the first embodiment of the connecting block in its non-use state;

[0033] Figure 9 This is a perspective sectional view of the first embodiment of the connecting block in its non-use state;

[0034] Figure 10 This is a usage state diagram of the second embodiment of the connecting block in this utility model application;

[0035] Figure 11 This is a usage state diagram of one side of the third embodiment of the connecting block in this utility model application;

[0036] Figure 12 This is a usage state diagram of the other side of the third embodiment of the connecting block in this utility model application;

[0037] Figure 13 This is a perspective view of the upper support plate in this utility model application;

[0038] Figure 14 This is a perspective view of the base plate in this utility model application.

[0039] Explanation of reference numerals in the attached figures

[0040] 1. Upper support plate; 101. First connecting hole; 102. Second connecting hole; 2. Limiting component; 201. Connecting block; 201a. First insertion hole; 201b. Irregular through hole; 201c. Second insertion hole; 202. Limiting rod; 203. Compression spring; 204. Insert rod; 3. Rotating component; 301. Bearing sleeve; 302. Bearing; 303. Rotating shaft; 4. Base plate; 401. First mounting hole; 402. Annular groove; 403. Second mounting hole; 5. Gasket. Detailed Implementation

[0041] The specific embodiments of this utility model application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this disclosure.

[0042] In the technical solutions disclosed in this utility model application, unless otherwise stated, directional terms such as "upper," "lower," "left," and "right" generally refer to those defined based on the drawing direction of the corresponding figures, while "inner" and "outer" refer to those inside and outside relative to the outline of the component or structure itself. Furthermore, it should be noted that terms such as "first" and "second" are used to distinguish one element from another and do not have sequential or importance implications. Additionally, in the description with reference to the figures, the same reference numerals in different figures denote the same element.

[0043] According to this utility model application, a rotatable assembly fixture is disclosed, such as... Figure 1 As shown, it includes: an upper support plate 1, which is rotatably mounted on a base plate 4 for placing products to be assembled;

[0044] The rotating component 3 is disposed between the base plate 4 and the upper support plate 1, and is used to enable the upper support plate 1 to rotate horizontally on the base plate 4.

[0045] The limiting component 2 is located on the side of the rotating component 3 and is used to control the horizontal rotation of the upper support plate 1.

[0046] In the above technical solution, a rotating assembly 3 is installed between the base plate 4 and the upper support plate 1 above it. The rotating assembly 3 is installed at the bottom end of the upper support plate 1 and the upper surface of the base plate 4, allowing the upper support plate 1 to be rotatably mounted on the base plate 4. The automotive parts or equipment to be assembled are then placed on the upper support plate 1 for assembly. After the operator has assembled the near end of the product closest to them, the upper support plate 1 is rotated 180 degrees to move the unassembled far end of the product closer to them, allowing for continued operation. The movement limiting assembly 2 serves to limit the movement of the upper support plate 1 during assembly, preventing horizontal rotation of the upper support plate 1 and affecting product assembly.

[0047] This design solves the problem that operators usually have to rely on repeated back-and-forth movements, changing workstations, or adding manpower to complete assembly, which is time-consuming and labor-intensive. In the automotive parts production process, while ensuring product quality, it not only reduces the labor intensity and assembly difficulty for workers, but also saves time and effort, increases production efficiency, and reduces labor costs, ultimately improving enterprise economic benefits and promoting economic development. Furthermore, the tooling has a simple structure, stable performance, and is easy to produce and operate. Regarding the specific types of products to be assembled in this design, they can be automotive parts or machinery and equipment used in automobiles, such as radiators, heat exchangers, etc., as long as the product's volume is compatible with the dimensions of the upper pallet 1. This application does not impose specific limitations here.

[0048] In this embodiment, such as Figures 1 to 9 As shown, the motion limiting component 2 includes:

[0049] Combination Figure 1 , Figure 2 , Figure 4 As shown, the connecting block 201 is set on the base plate 4 on the side of the rotating component 3; the connecting block 201 has a rectangular structure, and a first insertion hole 201a and a second insertion hole 201c for insertion are made on the symmetrical end face, and irregular through holes 201b are respectively made on the other symmetrical end face.

[0050] Combination Figure 1 , Figure 5 , Figure 6 , Figure 8 As shown, the insertion rod 204 has one end passing through the first insertion hole 201a and the second insertion hole 201c in sequence, and can be retractably inserted into the rotating assembly 3;

[0051] Combination Figure 2 , Figure 6 , Figure 7 , Figure 8 , Figure 9 The limiting rod 202 is vertically inserted into the insertion rod 204, and the two ends of the limiting rod 202 are respectively located in two irregular through holes 201b, which are used to adjust the extension and retraction of the insertion rod 204.

[0052] Combination Figure 6 , Figure 8 As shown, the compression spring 203 is fitted onto the insertion rod 204, and the diameter of the compression spring 203 is larger than the diameter of the first insertion hole 201a. One end of the compression spring 203 abuts against the inner wall of the first insertion hole 201a, and the other end abuts against the limiting rod 202.

[0053] [Working Principle]: See the attached diagram in the instruction manual. Figure 6 To be continued Figure 9This is a state diagram of the limiting component 2. In this solution, after placing the product to be assembled in a suitable position on the upper pallet 1, the limiting rod 202 in the connecting block 201 is adjusted. Using the elastic force released by the compression spring 203, the insertion rod 204 extends and inserts into the rotating component 3. At this time, the insertion rod 204 restricts the rotation of the rotating component 3, and the upper pallet 1 connected to the rotating component 3 cannot rotate horizontally. At this time, the product can be assembled. After the near end of the product is assembled, the limiting rod 202 is adjusted to the corresponding position in the irregular through hole 201b. The compression spring 203 is compressed, and the insertion rod 204 retracts and is pulled out from the rotating component 3. At this time, the insertion rod 204 releases its limiting effect on the rotating component 3, and the rotating component 3 and the upper pallet 1 can rotate freely horizontally. The upper pallet 1 is rotated 180 degrees, and the unassembled far end of the product is moved closer to the operating position to continue the operation. It is worth noting that the diameter of the spring coil of the compression spring 203 is larger than the diameter of the first insertion hole 201a, so as to facilitate the application of external force to the compression spring 203 and cause it to deform. Furthermore, as... Figure 3 As shown, the limiting rod 202 is a through threaded rod, and the corresponding position of the insertion rod 204 has a through threaded hole to facilitate the installation of the two.

[0054] Example (1)

[0055] like Figure 4 , Figure 5 As shown, both irregular through holes 201b are horizontal T-shaped structures, symmetrically formed on both sides of the connecting block 201. The vertical end of the horizontal T-shape is relatively far away from the rotating component 3, while the horizontal end is relatively closer to the rotating component 3.

[0056] Specifically:

[0057] ① Figure 6 , Figure 7 This is a diagram showing the state of the upper support plate 1 being restricted by the motion limiting component 2.

[0058] Adjust the limiting rod 202 inside the connecting block 201 so that its two ends are at the horizontal ends of the two horizontal T-shaped holes, release the elastic force of the compression spring 203, and at the same time the elastic force pushes the insertion rod 204 to extend and insert into the rotating assembly 3. Since the limiting rod 202 is subjected to the elastic force of the compression spring 203, the limiting rod 202 is in a horizontal stationary state. At this time, the insertion rod 204 plays a role in restricting the rotation of the rotating assembly 3, so the upper support plate 1 connected to the rotating assembly 3 cannot rotate horizontally.

[0059] ② Figure 8 , Figure 9 This is a state diagram showing the release of the restriction on the upper support plate 1 by the motion limiting component 2.

[0060] Adjust the limiting rod 202 so that both ends are located at the vertical ends of the two horizontal T-shaped holes. (See reference for details.) Figure 9One end of the limiting rod 202 abuts against the upper part of the vertical end of the horizontal T-shaped hole, and the other end of the limiting rod 202 abuts against the lower part of the vertical end of another horizontal T-shaped hole. Due to the elastic force of the compression spring 203, the limiting rod 202 is kept in an inclined state. At this time, the compression spring 203 is compressed, the insertion rod 204 retracts and is pulled out from the rotating assembly 3, thereby releasing the limiting effect on the rotating assembly 3. Then, the upper support plate 1 is rotated 180 degrees, and the unassembled far end of the product is moved to the operating position to continue the operation.

[0061] Example (2)

[0062] like Figure 10 As shown, both irregular through holes 201b are horizontal H-shaped structures, symmetrically formed on both sides of the connecting block 201.

[0063] In this embodiment, the operation of the limiting rod 202 is generally the same as in embodiment (1). However, it should be noted that when the insertion rod 204 is in the limiting position, one end of the limiting rod 202 is adjusted to the upper slot of the vertical end of the H-shaped hole (not shown in the accompanying drawings), and the other end of the limiting rod 202 is adjusted to the lower slot of the vertical end of another H-shaped hole (e.g., ...). Figure 10 As shown, due to the elastic force of the compression spring 203, the limit rod 202 can still be tilted as a whole. This design can make the limiting effect of the limiting component 2 better and more stable.

[0064] Example (3)

[0065] like Figure 11 , Figure 12 As shown, both irregular through holes 201b are L-shaped structures, centrally symmetrically formed on both sides of the connecting block 201. That is, one side is L-shaped, and the other side is an inverted L-shape. The vertical ends of both the L-shaped and inverted L-shaped holes are relatively far away from the rotating component 3, and the horizontal ends are relatively close to the rotating component 3. In this embodiment, the operation mode of the limiting rod 202 is generally the same as that in embodiment (1), and will not be described again here.

[0066] In some implementations, such as Figure 2 As shown, the rotating assembly 3 includes: a bearing sleeve 301, which is mounted on the base plate 4; the bearing sleeve 301 is provided with a bearing 302 and a rotating shaft 303. The bearing 302 is mounted on the base plate 4, and the rotating shaft 303 is mounted on the bearing 302. The upper end face of the rotating shaft 303 is coaxially connected to the upper support plate 1, and both the rotating shaft 303 and the outer edge of the bearing sleeve 301 are provided with limiting holes for the insertion of the insertion rod 204.

[0067] In other implementations, such as Figure 1 , Figure 2 , Figure 13As shown, the upper support plate 1 has several first connecting holes 101 for fixed connection with the rotating shaft 303, and the upper end face of the rotating shaft 303 has corresponding threaded holes that match the first connecting holes 101. Furthermore, the first connecting holes 101 are countersunk holes. This design prevents the bolt heads of the connecting bolts from colliding with the product placed on the upper support plate 1, thus avoiding damage to the product and optimizing the performance of this tooling.

[0068] There are also other implementation methods, such as Figure 2 , Figure 13 , Figure 14 As shown, a second connecting hole 102 for connecting with the rotating shaft 303 and the base plate 4 is provided at the center of the upper support plate 1. Connecting holes matching the second connecting hole 102 are provided at the corresponding positions of the rotating shaft 303 and the base plate 4.

[0069] In some other specific implementations, such as Figure 2 , Figure 14 As shown, the base plate 4 has a second mounting hole 403 for mounting the connecting block 201; the bottom of the connecting block 201 has a mounting hole that matches the second mounting hole 403.

[0070] In the above embodiments, the base plate 4, upper support plate 1, connecting block 201, insertion rod 204, limiting rod 202, rotating shaft 303, bearing 302 and other components are all designed to be detachable, which avoids the high cost of integral connection and welding, reduces the use cost of the tooling, and facilitates transportation.

[0071] In some other implementations, such as Figure 2 , Figure 14 As shown, the base plate 4 has an annular groove 402 for accommodating and positioning the rotating component 3. The annular groove 402 contains a first mounting hole 401 for mounting the bearing sleeve 301. The bottom of the bearing sleeve 301 has a hole that matches the first mounting hole 401. The annular groove 402 on the base plate 4 for accommodating and positioning the rotating component 3 greatly prevents the tooling from shifting or other accidents during use.

[0072] This utility model application exemplarily describes the steps for using this assembly tooling, as follows:

[0073] S1. First, place the automotive parts or equipment to be assembled on the upper pallet 1;

[0074] S2. Adjust the limiting rod 202 so that the insertion rod 204 is inserted into the bearing sleeve 301 and the rotating shaft 303;

[0075] S3. Perform assembly. After the operator has finished assembling the near end of the product, adjust the limit rod 202 to release the movement restriction, rotate the upper pallet 1 180 degrees, and move the unassembled far end of the product to the operating position.

[0076] S4. Adjust the limit rod 202 again so that the insertion rod 204 is inserted into the bearing sleeve 301 and the rotating shaft 303, and continue the operation;

[0077] S5. After the operation is completed, the product is transported out and the next product is assembled.

[0078] The preferred embodiments of this utility model application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the specific details of the above embodiments. Within the scope of the disclosed technical concept, various simple modifications can be made to the technical solution of this utility model application, and these simple modifications all fall within the protection scope of this application. For example, such as Figure 1 , Figure 2 As shown, the connecting blocks 201 of the limiting component 2 on the side of the rotating component 3 can be changed from two to four.

[0079] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction, such as adding a gasket 5 between the base plate 4 and the connecting block 201. To avoid unnecessary repetition, this application will not describe the various possible combinations separately.

[0080] Furthermore, various different embodiments of this utility model application can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this utility model application.

Claims

1. A rotatable assembly fixture, comprising a base plate (4), characterized in that, Also includes: The upper support plate (1) is rotatably mounted on the base plate (4) and is used to place the product to be assembled; A rotating component (3) is disposed between the base plate (4) and the upper support plate (1) to enable the upper support plate (1) to rotate horizontally on the base plate (4); A motion limiting component (2) is disposed on the side of the rotating component (3) for controlling the horizontal rotation of the upper support plate (1).

2. The rotatable assembly fixture according to claim 1, characterized in that, The motion limiting component (2) includes: A connecting block (201) is disposed on the base plate (4) on the side of the rotating component (3); the connecting block (201) is a rectangular structure, and a first insertion hole (201a) and a second insertion hole (201c) for insertion are made on the symmetrical end face, and a corresponding irregular through hole (201b) is made on the other symmetrical end face. The insertion rod (204) has one end passing through the first insertion hole (201a) and the second insertion hole (201c) in sequence, and can be telescopically inserted into the rotating assembly (3); A limiting rod (202) is vertically inserted into the insert rod (204), and the two ends of the limiting rod (202) are respectively located in the two irregular through holes (201b) for adjusting the extension and retraction of the insert rod (204); A compression spring (203) is fitted onto the insertion rod (204), and the diameter of the compression spring (203) is larger than the diameter of the first insertion hole (201a). One end of the compression spring (203) abuts against the inner wall of the first insertion hole (201a), and the other end abuts against the limiting rod (202).

3. The rotatable assembly fixture according to claim 2, characterized in that: Both of the irregular through holes (201b) are horizontal T-shaped structures, symmetrically formed on both sides of the connecting block (201).

4. The rotatable assembly fixture according to claim 2, characterized in that: The limiting rod (202) is a through thread screw.

5. The rotatable assembly fixture according to any one of claims 2 to 4, characterized in that, The rotating component (3) includes: A bearing sleeve (301) is installed on the base plate (4); the bearing sleeve (301) is provided with a bearing (302) and a rotating shaft (303). The bearing (302) is installed on the base plate (4), and the rotating shaft (303) is installed on the bearing (302). The upper end face of the rotating shaft (303) is coaxially connected to the upper support plate (1), and the outer edges of the rotating shaft (303) and the bearing sleeve (301) are both provided with limiting holes for the insertion rod (204).

6. The rotatable assembly fixture according to claim 5, characterized in that: The upper support plate (1) has a plurality of first connecting holes (101) for fixed connection with the rotating shaft (303), and the upper end face of the rotating shaft (303) has a threaded hole that matches the first connecting hole (101) at the corresponding position.

7. The rotatable assembly fixture according to claim 6, characterized in that: The first connecting hole (101) is a countersunk hole.

8. The rotatable assembly fixture according to claim 5, characterized in that: The upper support plate (1) has a second connecting hole (102) at its center for connecting with the rotating shaft (303) and the base plate (4). The rotating shaft (303) and the base plate (4) each have connecting holes that match the second connecting hole (102) at their respective positions.

9. The rotatable assembly fixture according to claim 5, characterized in that: The base plate (4) has an annular groove (402) for accommodating and positioning the rotating component (3). The annular groove (402) has a first mounting hole (401) for mounting the bearing sleeve (301). The bottom of the bearing sleeve (301) has a hole that matches the first mounting hole (401).

10. The rotatable assembly fixture according to claim 2, characterized in that: The base plate (4) has a second mounting hole (403) for mounting the connecting block (201); the bottom of the connecting block (201) has a mounting hole that matches the second mounting hole (403).