A kind of transmission shaft assembly positioning assembly tool

Abstract

The application discloses a transmission shaft assembly positioning and assembling tool and relates to the technical field of soil layer exploitation. The application drives the transmission plate to move vertically by rotating the screw rod, drives the push rod to move by the vertical movement of the transmission plate, drives the fixing block to move and embed into the fixing groove of the fixing base for preliminary fixing by the movement of the push rod, drives the piston piece plate body to move vertically by the vertical movement of the transmission plate, inputs the filling liquid into the expansion rubber pad of the fixing block, and fixes the transmission shaft again through the expansion rubber pad, so that the stability of the transmission shaft after fixing is ensured, and the technical problems that the transmission shaft needs to be frequently replaced according to the geological conditions and the bolt dismounting process is complicated are solved.

Description

Technical Field

[0001] This invention relates to the field of soil mining technology, specifically to a positioning and assembly fixture for a drive shaft assembly. Background Technology

[0002] With the continuous advancement of infrastructure construction, the increasing intensity of mineral resource development, and the rapid development of urban underground space utilization and geotechnical engineering, various soil-related projects based on low-carbon mining, such as earthwork engineering, open-pit topsoil mining, underground soil sampling, and foundation pit advanced drilling, have fully entered the stage of large-scale, intensive, and high-standard construction. Earthwork engineering covers multiple scenarios such as high-standard farmland construction, large-scale site leveling, water conservancy hub foundation pit excavation, and transportation trunk roadbed treatment. Among them, the soil mining process requires the use of positioning and assembly tools to assemble the drive shaft assembly.

[0003] Existing low-carbon mining equipment uses drive shaft positioning and assembly fixtures, all of which employ multiple sets of bolts for fixing. Since the drive shaft needs to be frequently replaced due to changes in geological conditions, the bolt disassembly and assembly process is cumbersome and time-consuming, extending the equipment's non-operational downtime, disrupting the continuity of mining operations, and directly affecting the overall mining progress and operational efficiency. On the other hand, the continuous high-frequency vibration of the drive shaft during mining operations can easily cause the connecting bolts to loosen or strip, leading to inaccurate positioning and misalignment of the drive shaft. This not only affects mining accuracy but also poses a risk of equipment damage. Summary of the Invention

[0004] This invention overcomes the shortcomings of the prior art and proposes a positioning and assembly fixture for a drive shaft assembly; it solves the technical problem that the drive shaft needs to be frequently replaced due to changes in geological conditions and that the bolt disassembly and assembly process is cumbersome.

[0005] This invention is achieved through the following technical solution: A positioning and assembly fixture for a drive shaft assembly includes a mating frame, a connecting cylinder connected to the inner side of the mating frame, a screw rotatably connected to the mating frame, a drive plate threadedly connected to the screw, the drive plate being located inside the mating frame and slidably connected to the connecting cylinder, a connecting spring connected to the drive plate, and a push rod connected to the end of the connecting spring away from the drive plate, a sliding frame connected to the bottom of the drive plate, and the sliding frame slidably connected to the push rod, the bottom of the push rod being hinged to one end of a main connecting rod, and a fixing block hinged to the other end of the main connecting rod, the fixing block being provided with an expansion joint. A rubber pad is connected to a fixing frame via a docking frame, and the fixing frame is slidably connected to a fixing block. A bottom block is connected inside the fixing frame, and the bottom block is connected to the fixing block via a hose. A transmission plate is rotatably connected to a transmission rod, and the transmission rod has a rotating groove. The transmission rod is threadedly connected to a transmission block. A liquid storage tank is connected to the docking frame, and the liquid storage tank is connected to the bottom block via a hose. A piston is provided inside the liquid storage tank. The piston consists of a plate and a rod. The plate of the piston is slidably connected to the liquid storage tank, and the top of the rod of the piston is in contact with the transmission block.

[0006] Furthermore, it also includes a stabilizing component, which includes a stabilizing frame disposed on the outside of the docking frame, a large magnetic ring installed on the inside of the stabilizing frame, a docking ring disposed on the outside of the docking frame, and a docking groove opened in the stabilizing frame, and the docking ring of the docking frame is embedded in the docking groove of the stabilizing frame. A mounting block is slidably connected to the docking frame, and a small magnetic ring is installed on the mounting block on the outside side of the docking frame, with the magnetic poles of the large magnetic ring and the small magnetic ring being opposite.

[0007] Furthermore, multiple sets of small magnetic rings are provided, and the magnetic poles of all sets of small magnetic rings are opposite to those of the large magnetic ring.

[0008] Furthermore, it also includes an adjustment assembly located inside the docking frame; the adjustment assembly includes a threaded ring threaded to the outside of the connecting cylinder, a connecting ring rotatably connected to the bottom of the threaded ring, an adjustment plate connected to the bottom of the connecting ring, a secondary connecting rod hinged to the bottom of the adjustment plate, and the end of the secondary connecting rod away from the adjustment plate hinged to the mounting block, the adjustment plate having a through hole, and a circular protrusion provided inside the through hole, and the circular protrusion of the adjustment plate being embedded in the rotating groove of the transmission rod.

[0009] Furthermore, a limiting rod is connected to the inner side of the docking frame, and the limiting rod is slidably connected to the adjusting plate.

[0010] Furthermore, a guide rod is connected to the bottom of the transmission plate, and the guide rod passes through the hole formed in the center of the connecting spring and is slidably connected to the push rod.

[0011] Furthermore, a return spring is connected above the liquid storage tank, and the return spring is connected to the piston rod.

[0012] Furthermore, the fixing block is located inside the bottom block and connected to an anti-detachment rod, and the anti-detachment rod is slidably connected to the bottom block.

[0013] Furthermore, a sliding rod is connected to the bottom of the transmission plate, and the sliding rod is slidably connected to the transmission block.

[0014] The beneficial effects of this invention compared to the prior art are as follows: 1. This invention uses a rotating screw to drive a transmission plate to move vertically. The vertical movement of the transmission plate drives a push rod to move, which in turn drives a fixed block to move and embed into the fixing groove of the fixing seat for initial fixation. The vertical movement of the transmission plate also causes the piston to move vertically, injecting filling fluid into the expansion rubber pad of the fixing block. The expansion rubber pad then achieves secondary fixation, ensuring the stability of the transmission shaft after fixation. The operation process is simple and easy for workers to disassemble or install, thus improving the efficiency of low-carbon mining.

[0015] 2. This invention uses the repulsive force between the large and small magnetic rings to limit the overall positioning of the docking frame, thereby improving the stability of the docking frame during rotation, and further improving the stability of the transmission shaft during rotation, reducing the occurrence of rotational deviation of the rotating rod.

[0016] 3. This invention can drive the connecting ring to move vertically by rotating the threaded ring. The vertical movement of the connecting ring drives the adjusting plate to move vertically. The vertical movement of the adjusting plate can adjust the unfolding range of the small magnetic ring, and thus adjust it according to the rotation of the transmission shaft. In addition, the vertical movement of the adjusting plate will adjust the number of rotations of the transmission rod, and thus adjust the fixing force of the transmission shaft, which is convenient for the staff to adjust according to the length of the transmission shaft. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is one of the schematic diagrams of the internal structure of the docking frame of the present invention; Figure 3 This is a second schematic diagram of the internal structure of the docking frame of the present invention; Figure 4 This is a schematic diagram of the adjustment component structure of the present invention; Figure 5 This is a schematic diagram of the fixed frame and liquid storage tank structure of the present invention; Figure 6 This is a schematic diagram of the transmission rod and piston structure of the present invention; Figure 7 This is a schematic diagram of the transmission rod and adjusting plate structure of the present invention; Figure 8 This is a schematic diagram of the top surface structure of the docking frame of the present invention; Figure 9 This is a schematic diagram of the bottom structure of the docking frame of the present invention; Figure 10 This is a schematic diagram showing the separation of the docking frame and the fixing seat according to the present invention; Figure 11 This is a schematic diagram of the docking frame and the fixed base of the present invention.

[0018] In the diagram: 1. Docking frame; 2. Connecting cylinder; 3. Screw; 4. Transmission plate; 5. Connecting spring; 6. Push rod; 7. Sliding frame; 8. Fixed frame; 9. Main connecting rod; 10. Fixed block; 11. Base block; 12. Transmission rod; 13. Transmission block; 14. Piston; 15. Liquid storage tank; 16. Stabilizing assembly; 161. Stabilizing frame; 162. Large magnetic ring; 163. Mounting block; 164. Small magnetic ring; 17. Adjusting assembly; 171. Threaded ring; 172. Connecting ring; 173. Adjusting plate; 174. Secondary connecting rod. Detailed Implementation

[0019] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solutions of this invention are described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0020] Please see Figures 1 to 11 This invention provides a technical solution: a positioning and assembly fixture for a drive shaft assembly, including a docking frame 1, a connecting cylinder 2 connected to the inner side of the docking frame 1, a screw 3 rotatably connected to the docking frame 1, a drive plate 4 threadedly connected to the screw 3, the drive plate 4 being located inside the docking frame 1 and slidably connected to the connecting cylinder 2, a connecting spring 5 connected to the drive plate 4, and a push rod 6 connected to the end of the connecting spring 5 away from the drive plate 4, a sliding frame 7 connected to the bottom of the drive plate 4, and the sliding frame 7 slidably connected to the push rod 6, the bottom of the push rod 6 being connected to the main connecting cylinder 2. One end of the rod 9 is hinged, and the other end of the main connecting rod 9 is hinged to a fixing block 10, and the fixing block 10 is provided with an expansion rubber pad. The docking frame 1 is connected to a fixing frame 8, and the fixing frame 8 is slidably connected to the fixing block 10. The fixing frame 8 is connected to a bottom block 11 inside, and the bottom block 11 is connected to the fixing block 10 through a hose. The transmission rod 4 is rotatably connected to the transmission rod 12 through a bearing. The rotatable connection achieved by the bearing is a publicly available technology. Therefore, the transmission rod 4 can drive the transmission rod 12 to move vertically without affecting the rotation of the transmission rod 12. Furthermore, the transmission rod 12 has a rotating groove, and the transmission rod 12 is threadedly connected to the transmission block 13. The docking frame 1 is connected to the liquid storage tank 15, which is connected to the bottom block 11 via a hose. A piston 14 is provided inside the liquid storage tank 15. The piston 14 consists of a plate and a rod. The plate is connected to the bottom of the rod, and the plate of the piston 14 is slidably connected to the liquid storage tank 15. The top of the rod of the piston 14 is in contact with the transmission block 13. A fixed seat and a transmission shaft are sequentially provided at the bottom of the docking frame 1. The transmission shaft is installed through the bottom of the fixed seat, and the top surface of the fixed seat has a groove that connects with the fixed block 13. The fixed groove is matched with the screw 3; the screw 3 drives the transmission plate 4 to move vertically, the transmission plate 4 drives the push rod 6 to move, and the push rod 6 drives the fixed block 10 to move through the main connecting rod 9, so that the fixed block 10 is embedded into the fixed groove of the fixed seat for initial fixation. The vertical movement of the transmission plate 4 also causes the plate of the piston 14 to move vertically, thereby inputting the filling liquid into the expansion rubber pad of the fixed block 10. The expansion rubber pad then provides secondary fixation, thereby ensuring the stability of the transmission shaft after fixation. The operation process is simple and convenient for workers to disassemble or install.

[0021] The drive shaft assembly positioning and assembly fixture also includes a stabilizing component 16 and an adjusting component 17. The stabilizing component 16 is located on the outside of the docking frame 1, and the adjusting component 17 is located on the inside of the docking frame 1.

[0022] In one embodiment of the present invention, the stabilizing component 16 includes a stabilizing frame 161 disposed on the outside of the docking frame 1. A large magnetic ring 162 is installed on the inner side of the stabilizing frame 161, and a docking ring is disposed on the outer side of the docking frame 1. The stabilizing frame 161 has a docking groove, and the docking ring of the docking frame 1 is embedded in the docking groove of the stabilizing frame 161. The docking frame 1 is slidably connected to a mounting block 163. A small magnetic ring 164 is installed on the outer side of the mounting block 163. Since the magnetic poles of the large magnetic ring 162 and the small magnetic ring 164 are opposite, the large magnetic ring 162 and the small magnetic ring 164 will generate a repulsive force. The repulsive force between the large magnetic ring 162 and the small magnetic ring 164 limits the overall positioning of the docking frame 1, improves the stability of the docking frame 1 during rotation, and thus improves the stability of the transmission shaft during rotation, reducing the occurrence of rotational deviation of the rotating rod.

[0023] In one embodiment of the present invention, the adjusting assembly 17 includes a threaded ring 171 threadedly connected to the outside of the connecting cylinder 2. A connecting ring 172 is rotatably connected to the bottom of the threaded ring 171. An adjusting plate 173 is connected to the bottom of the connecting ring 172. A secondary connecting rod 174 is hinged to the bottom of the adjusting plate 173, and the end of the secondary connecting rod 174 away from the adjusting plate 173 is hinged to the mounting block 163. The adjusting plate 173 has a through hole, and a circular protrusion is provided inside the through hole. The circular protrusion of the adjusting plate 173 is embedded in the rotating groove of the transmission rod 12. By rotating the threaded ring 171, the connecting ring 172 can be pushed to move vertically. The vertical movement of the connecting ring 172 drives the adjusting plate 173 to move vertically. The vertical movement of the adjusting plate 173 can adjust the unfolding range of the small magnetic ring 164, and thus adjust it according to the rotation of the transmission shaft. The vertical movement of the adjusting plate 173 will also adjust the number of rotations of the transmission rod 12, and thus adjust the fixing force of the transmission shaft, making it convenient for the operator to adjust according to the length of the transmission shaft.

[0024] In one embodiment of the present invention, a guide rod is connected to the bottom of the transmission plate 4, and the guide rod passes through the hole formed in the center of the connecting spring 5 and is slidably connected to the push rod 6. By setting the guide rod to limit the connecting spring 5, the deformation and misalignment of the connecting spring 5 are reduced, and by limiting the push rod 6 by the guide rod, the stability of the push rod 6 during vertical movement is improved.

[0025] When the transmission plate 4 moves downward, it will first push the connecting spring 5 downward. The downward movement of the connecting spring 5 drives the push rod 6 downward. The movement of the push rod 6, under the action of 9, causes 10 to move. After 10 moves and unfolds, the push rod 6 can no longer move downward. Because there is a gap between the transmission plate 4 and the push rod 6, the transmission plate 4 can still move downward. During the downward movement of the transmission plate 4, the transmission block 13 contacts the piston 14 and then pushes 14 downward. Please refer to the instruction manual. Figure 5 , Figure 5 The diagram shows the state when the fixed block 10 is unfolded and the transmission block 13 and piston 14 are just in contact. The main function of the connecting spring 5 is to create a gap between the transmission plate 4 and the push rod 66. This allows the fixed block 10 to be unfolded first for initial fixation when the transmission plate 4 moves downward. After the fixed block 10 is unfolded, the piston 14 then moves downward to fill the expansion rubber pad of the fixed block 10, achieving secondary fixation. This ensures that unfolding and filling are performed sequentially, avoiding the situation where unfolding and filling occur simultaneously and prevent 10 from unfolding. Furthermore, in the subsequent unfixing operation, the connecting spring 5 can push 6 downward to restore the distance between it and 4 to the initial value, thus facilitating the subsequent refixing operation.

[0026] In one embodiment of the present invention, a return spring is connected above the liquid storage tank 15, and the return spring is connected to the rod of the piston 14. By providing a return spring, the piston 14 can be pushed back to its initial height, which is convenient and quick.

[0027] In one embodiment of the present invention, six sets of small magnetic rings 164 are provided, and the magnetic poles of the six sets of small magnetic rings 164 are opposite to those of the large magnetic ring 162. By providing six sets of small magnetic rings 164, the drill pipe assembly can be better limited during rotation, thereby improving the stability of the drill pipe assembly during rotation.

[0028] In one embodiment of the present invention, a limiting rod is connected to the inner side of the docking frame 1, and the limiting rod is slidably connected to the adjusting plate 173. By setting the limiting rod, the adjusting plate 173 can be limited, thereby improving the stability of the adjusting plate 173 during its movement.

[0029] In one embodiment of the present invention, the fixing block 10 is connected to an anti-detachment rod on one side inside the bottom block 11, and the anti-detachment rod is slidably connected to the bottom block 11. The fixing block 10 is limited by the anti-detachment rod, thereby improving the stability of the fixing block 10 during movement.

[0030] In one embodiment of the present invention, a sliding rod is connected to the bottom of the transmission plate 4, and the sliding rod is slidably connected to the transmission block 13. The sliding rod can limit the transmission block 13 and improve the stability of the transmission block 13 during vertical movement.

[0031] Working principle: First, when it is necessary to release the drive shaft, rotate screw 3 in the reverse direction. Since screw 3 is threadedly connected to drive plate 4 and drive plate 4 is slidably connected to connecting cylinder 2, the rotation of screw 3 will drive drive plate 4 to move upward. The upward movement of drive plate 4 will drive connecting spring 5 to move upward. Connecting spring 5 will gradually return to its original length. During the upward movement of drive plate 4, it will also drive drive rod 12 to move upward. Since the circular protrusion of adjusting plate 173 is located in the rotating groove of drive rod 12, the upward movement of drive rod 12 will be affected by the circular protrusion and the rotating groove to rotate. Since drive rod 12 is threadedly connected to drive block 13 and drive block 13 is slidably connected to sliding rod, the rotation of drive rod 12 will drive drive block 13 to move downward a short distance.

[0032] Specifically, the upward movement of the transmission plate 4 drives the transmission rod 12 to move upward. The upward movement of the transmission rod 12 is influenced by the circular protrusion and the rotating groove, causing it to rotate. Since the transmission block 13 is threadedly connected to the transmission rod 12 and slidably connected to the sliding rod, the rotation of the transmission rod 12 drives the transmission block 13 to move downward. The downward movement distance of the transmission block 13 is less than the upward movement distance of the transmission plate 4. Therefore, the upward movement of the transmission plate 4 causes the transmission block 13 to separate from the rod of the piston component 14. Similarly, the downward movement of the transmission plate 4 drives the transmission rod 12 to move downward. The rod 12 moves downward and rotates due to the influence of the circular protrusion and the rotating groove, which in turn drives the transmission block 13 to move upward. However, since the upward movement distance of the transmission block 13 is less than the downward movement distance of the transmission plate 4, the transmission block 13 will still contact the rod of the piston 14 and push the piston 14 to move. The movable transmission block 13 is mainly used to adjust the vertical movement distance of the piston 14, which in turn can adjust the amount of filling liquid filled into the inner side of the fixed block 10, thereby realizing the adjustment of the secondary fixing strength, which is convenient for the staff to adjust according to the length of the rod.

[0033] Secondly, the upward movement of the transmission plate 4 will cause the transmission block 13 to separate from the rod of the piston 14. At this time, the return spring will push the piston 14 to move upward as a whole. The upward movement of the piston 14 will draw the filling liquid inside the expansion rubber pad of the fixing block 10 back into the reservoir 15, thereby causing the expansion rubber pad of the fixing block 10 to separate from the inner wall of the fixing groove of the fixing seat. The piston 14 will return to its initial position under the action of the return spring. At this time, the transmission plate 4 will continue to move upward, which will pull the connecting spring 5 to produce tensile deformation. The tensile deformation of the connecting spring 5 will pull the push rod 6 to move upward. Since the push rod 6 is hinged to the main connecting rod 9, and the main connecting rod 9 is hinged to the fixing block 10, and the fixing block 10 is slidably connected to the fixing frame 8, the upward movement of the push rod 6 will drive the fixing block 10 to move inward to the fixing frame 8. After the fixing block 10 is completely housed in the fixing frame 8, the fixing of the transmission shaft is released.

[0034] Then, when it is necessary to fix the drive shaft, align the fixing groove of the fixing seat with the fixing frame 8, push the drive shaft upward so that the fixing frame 8 is embedded in the fixing groove of the fixing seat, and then rotate the screw 3. The rotation of the screw 3 drives the transmission plate 4 to move downward. The downward movement of the transmission plate 4 drives the connecting spring 5 to move downward. The downward movement of the connecting spring 5 causes the push rod 6 to move downward. The downward movement of the push rod 6 drives the main connecting rod 9 to rotate. The rotation of the main connecting rod 9 pushes the fixing block 10 to move outward to the fixing frame 8. The fixing block 10 moves to the inner wall of the fixing groove of the fixing seat for initial fixation. During the downward movement of the transmission plate 4, it also drives the transmission rod 12 to move downward. The downward movement of the transmission rod 12 is affected by the circular protrusion and the rotating groove and rotates. The rotation of the transmission rod 12 drives the transmission block 13 to move upward. The upward movement distance of the transmission block 13 is less than that of the transmission plate 4. As the moving plate 4 moves downward, the transmission block 13 comes into contact with the rod of the piston 14 during the downward movement. After the transmission block 13 contacts the rod of the piston 14, it pushes the piston 14 downward as a whole. The downward movement of the piston 14 plate re-inputs the filling liquid inside the reservoir 15 into the expansion rubber pad of the fixing block 10, so that the expansion rubber pad fits against the inner wall of the fixing groove of the fixing seat, thus fixing the transmission shaft. The docking frame 1 is connected to the output end of the drilling rig, and the stabilizing frame 161 is fixedly connected to the frame of the drilling rig. Since the magnetic poles of the large magnetic ring 162 and the small magnetic ring 164 are opposite, the large magnetic ring 162 and the small magnetic ring 164 will generate a repulsive force. The repulsive force between the large magnetic ring 162 and the small magnetic ring 164 limits the entire docking frame 1, improving the stability of the subsequent rotation of the transmission shaft.

[0035] Finally, when the drive shaft is long, rotating the threaded ring 171 causes it to rotate vertically because it is threadedly connected to the connecting cylinder 2. The downward movement of the threaded ring 171 pushes the connecting ring 172 downward, which in turn pushes the adjusting plate 173 downward. Since the adjusting plate 173 is hinged to the secondary connecting rod 174, and the secondary connecting rod 174 is hinged to the mounting block 163, and the mounting block 163 is slidably connected to the docking frame 1, the downward movement of the adjusting plate 173 pushes the mounting block 163 outward from the docking frame 1. This increases the repulsive force between the small magnetic ring 164 and the large magnetic ring 162. The downward movement of the adjusting plate 173 causes the circular protrusion to move, which in turn causes the transmission rod 12 to rotate. The rotation of the transmission rod 12 causes the transmission block 13 to move downward, which in turn pushes the piston 14 to move as a whole. This increases the amount of oil in the expanding rubber pad, further improving the stability of the drive shaft after it is fixed.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A positioning and assembly fixture for a drive shaft assembly, characterized in that, The assembly includes a docking frame (1), a connecting cylinder (2) connected to the inner side of the docking frame (1), a screw (3) rotatably connected to the docking frame (1), a transmission plate (4) threadedly connected to the screw (3), the transmission plate (4) being located inside the docking frame (1) and slidably connected to the connecting cylinder (2), a connecting spring (5) connected to the transmission plate (4), and a push rod (6) connected to the end of the connecting spring (5) away from the transmission plate (4), a sliding frame (7) connected to the bottom of the transmission plate (4), and the sliding frame (7) slidably connected to the push rod (6), the bottom of the push rod (6) being hinged to one end of the main connecting rod (9), and a fixing block (10) hinged to the other end of the main connecting rod (9), and the fixing block (10) being provided with an expansion rubber pad, the docking frame (1) being connected to... A fixed frame (8) is slidably connected to a fixed block (10). A bottom block (11) is connected inside the fixed frame (8), and the bottom block (11) is connected to the fixed block (10) through a hose. A transmission plate (4) is rotatably connected to a transmission rod (12), and the transmission rod (12) has a rotating groove. The transmission rod (12) is threadedly connected to a transmission block (13). A docking frame (1) is connected to a liquid storage tank (15), and the liquid storage tank (15) is connected to the bottom block (11) through a hose. A piston component (14) is provided inside the liquid storage tank (15). The piston component (14) is composed of a plate and a rod. The plate of the piston component (14) is slidably connected to the liquid storage tank (15), and the top of the rod of the piston component (14) is in contact with the transmission block (13).

2. The positioning and assembly fixture for a transmission shaft assembly according to claim 1, characterized in that, It also includes a stabilizing component (16), which includes a stabilizing frame (161) disposed on the outside of the docking frame (1), a large magnetic ring (162) installed on the inside of the stabilizing frame (161), a docking ring disposed on the outside of the docking frame (1), and a docking groove opened on the stabilizing frame (161), and the docking ring of the docking frame (1) is embedded in the docking groove of the stabilizing frame (161). The docking frame (1) is slidably connected to an installation block (163), and a small magnetic ring (164) is installed on the outside side of the installation block (163), with the magnetic poles of the large magnetic ring (162) and the small magnetic ring (164) being opposite.

3. The positioning and assembly fixture for a transmission shaft assembly according to claim 2, characterized in that, There are multiple sets of small magnetic rings (164), and the magnetic poles of the multiple sets of small magnetic rings (164) are opposite to those of the large magnetic ring (162).

4. The positioning and assembly fixture for a transmission shaft assembly according to claim 2, characterized in that, It also includes an adjustment assembly (17) set inside the docking frame (1); the adjustment assembly (17) includes a threaded ring (171) threaded to the outside of the connecting cylinder (2), a connecting ring (172) rotatably connected to the bottom of the threaded ring (171), an adjustment plate (173) connected to the bottom of the connecting ring (172), a secondary connecting rod (174) hinged to the bottom of the adjustment plate (173), and the end of the secondary connecting rod (174) away from the adjustment plate (173) is hinged to the mounting block (163). The adjustment plate (173) has a through hole, and a circular protrusion is provided inside the through hole. The circular protrusion of the adjustment plate (173) is embedded in the rotating groove of the transmission rod (12).

5. The positioning and assembly fixture for a drive shaft assembly according to claim 4, characterized in that, A limiting rod is connected to the inner side of the docking frame (1), and the limiting rod is slidably connected to the adjusting plate (173).

6. The positioning and assembly fixture for a drive shaft assembly according to claim 1, characterized in that, The bottom of the transmission plate (4) is connected to a guide rod, which passes through the hole formed in the center of the connecting spring (5) and is slidably connected to the push rod (6).

7. The positioning and assembly fixture for a drive shaft assembly according to claim 1, characterized in that, A reset spring is connected above the liquid storage tank (15), and the reset spring is connected to the piston rod (14).

8. The positioning and assembly fixture for a transmission shaft assembly according to claim 1, characterized in that, The fixing block (10) is located inside the bottom block (11) and is connected to an anti-detachment rod on one side, and the anti-detachment rod is slidably connected to the bottom block (11).

9. The positioning and assembly fixture for a transmission shaft assembly according to claim 1, characterized in that, The bottom of the transmission plate (4) is connected to a sliding rod, and the sliding rod is slidably connected to the transmission block (13).

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