Quick positioning and mounting structure of automobile gearbox shell

Abstract

The invention relates to the technical field of automobile gearboxes, in particular to a quick positioning and mounting structure of an automobile gearbox shell, which comprises a base, a lower clamping mechanism is arranged on the inner side of the base, a circle of sliding rail is fixedly mounted at the top end of the base, and a sliding block is slidably clamped on the sliding rail; a connecting block is slidably mounted at the end, close to the circle center of the sliding rail, of the sliding block, a vertically-arranged concave block is rotatably mounted at the front end of the connecting block, and connecting rods are rotatably mounted on the left side and the right side of the connecting block correspondingly. The front end of the connecting rod is connected with a rectangular shell through a rotating assembly, and an upper clamping mechanism is arranged on the side, close to the gearbox shell, of the rectangular shell. According to the scheme, the operation process is simplified while the assembly precision of the automobile gearbox shell is improved, the problems of positioning deviation, sealing failure, low efficiency and the like in traditional maintenance are effectively solved, and reliable technical support is provided for the field of gearbox maintenance.

Description

Technical Field

[0001] The invention relates to the technical field of automobile gearboxes, and in particular to a quick positioning and installation structure of an automobile gearbox housing. Background Art

[0002] As a critical component of the vehicle transmission system, the automobile gearbox plays a vital role in the operation of the vehicle. Its main function is to change the speed and torque output by the engine to accurately adapt to the needs of the vehicle under various driving conditions. When the car starts, a large torque is required to drive the vehicle from a stationary state. The gearbox will amplify the torque output by the engine and transmit it to the wheels through a specific gear combination; when the car is driving at high speed, a lower speed is required to maintain efficient operation and reduce the load on the engine. At this time, the gearbox will adjust the transmission ratio, reduce the speed of the wheels, and ensure that the engine is in a suitable working range.

[0003] The existing automobile gearbox is basically composed of an upper gearbox housing, a lower gearbox housing and parts inside the gearbox housing. During the installation of the automobile gearbox, both the upper housing and the lower gearbox housing need to be positioned, and then the two are fixed together by bolts and screw holes on the housing. However, since there are often multiple models of automobile gearboxes, the size and shape of each model of automobile gearbox are different, and the arrangement direction of the screw holes is difficult to keep the same, it brings certain difficulties to the rapid positioning and installation of the gearbox housing. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned shortcomings in the prior art and to propose a quick positioning and installation structure for an automobile gearbox housing.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A quick positioning and installation structure for a car gearbox housing, comprising a base, a lower clamping mechanism is arranged inside the base, a circle of slide rails are fixedly installed on the top of the base, a slider is slidably engaged on the slide rail, a connecting block is slidably installed on one end of the slider close to the center of the slide rail, a concave block arranged vertically is rotatably installed at the front end of the connecting block, and connecting rods are rotatably installed on both the left and right sides of the connecting block;

[0007] A laser scanner is fixedly installed inside the concave block, and the working end of the laser scanner faces one side of the gearbox housing. Through holes are opened at both the upper and lower ends of the concave block, a wave spring sheet group is placed in the upper through hole, and a cap nut is clamped in the lower through hole;

[0008] The front end of the connecting rod is connected to a rectangular shell through a rotating assembly, and an upper clamping mechanism is arranged on a side of the rectangular shell close to the gearbox housing.

[0009] Preferably, the lower clamping mechanism includes a circle of slide grooves opened on the inner side of the base, and a plurality of fixed sliders are slidably engaged in the slide grooves. A hydraulic telescopic device is fixedly installed on the side of the fixed slider facing the center of the slide groove, and a fixed block is rotatably installed on the telescopic end of the hydraulic telescopic device.

[0010] Preferably, an outer ring fixedly mounted on the top of the base is provided on the outer side of the slide rail, a side of the slider close to the outer ring is in sliding contact with the inner wall of the outer ring, and a handle is fixedly mounted on the top of the slider.

[0011] Preferably, the wave spring sheet group is composed of four layers of wave sheets, the first and third layers are wave metal sheets with rigidity, the second layer is a wave metal sheet made of memory metal, and the bottom layer is a wave rubber sheet made of rubber material.

[0012] Preferably, the waveform amplitude of the second layer of corrugated sheets is greater than that of the other three groups of corrugated sheets.

[0013] Preferably, an internal thread block capable of sliding up and down is provided at the lower part of the interior of the cap-type nut, a second spring is fixedly connected between the internal thread block and the inner bottom wall of the cap-type nut, a plurality of external support rods are arranged at equal angles on the outside of the second spring, the external support rods can be deformed, and the upper end thereof is fixedly connected to the internal thread block, and the lower end is fixedly connected to the inner bottom wall of the cap-type nut, and a movable joint is installed at the middle position of the external support rod.

[0014] Preferably, the rotating assembly comprises a rotating shaft rotatably mounted on a front end of the connecting rod, and the front end of the rotating shaft is fixedly connected to the rectangular shell.

[0015] Preferably, the upper clamping mechanism includes a lower clamping block fixedly mounted at the lower interior of the rectangular shell, a magnetorheological body capsule being glued to the side of the lower clamping block close to the gearbox housing, an electromagnet being mounted inside the lower clamping block, the electromagnet being used in conjunction with the magnetorheological body capsule, and a fixed support assembly being arranged above the lower clamping block.

[0016] Preferably, the fixed support assembly includes an electric telescopic rod fixedly installed inside the lower clamping block, the telescopic end of the electric telescopic rod is fixedly installed with an upper clamping block, a fixing ring is fixedly installed on the side of the upper clamping block close to the gearbox housing, a first spring is fixedly installed inside the fixing ring, four outward expansion blocks are fixedly connected to the lower end of the fixing ring at equal intervals, the lower ends of the four outward expansion blocks are all inclined inwardly to form a hollow needle-shaped structure, and metal nails are movably inserted into the fixing ring and the hollow needle-shaped structure.

[0017] Preferably, the lower clamping block and the upper clamping block are both made of metal that can be attracted by magnetic force.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] 1. This application realizes multi-angle adaptive clamping of the gearbox housing through the linkage mechanism of the slide and the slider in conjunction with the hydraulic telescopic device, which significantly improves the positioning accuracy. The magnetorheological body capsule enhances rigidity after electromagnetic activation, and combined with the radial expansion mechanism of the expansion block, it effectively eliminates the concentricity deviation of the screw hole. The high-precision detection of the laser scanner and the flexible rotation function of the rotating shaft form a three-dimensional dynamic calibration system, which greatly improves the positioning efficiency and stability, and ensures the precise alignment of each component during the repair process.

[0020] 2. The four-layer wave spring sheet group in this application uses a gradient elastic design to achieve precise control of the screw preload and multi-level attenuation of vibration energy. The rigid metal layer provides stable support, the memory metal layer automatically compensates for deformation and adapts to different assembly angles, and the rubber layer effectively absorbs high-frequency impact. The cap nut adopts a spring-slider linkage structure inside. While enhancing the tightening force of the screw, the overall sealing is enhanced through the support design of the external support rod, which significantly reduces the risk of screw loosening and improves the long-term stability of the repair.

[0021] 3. The modular connection system in this application supports multi-directional free adjustment and is compatible with gearbox housings of different sizes and structures. The dual-mode detection mechanism combines laser scanning and mechanical probing to achieve multi-dimensional verification of assembly quality. The reverse thread adapter module can simultaneously process positive and negative thread combinations, simplifying the operation process under complex working conditions. The non-destructive detection design reduces damage to the threads caused by repeated disassembly and assembly, prolongs the service life of components, and reduces maintenance costs.

[0022] In summary, this solution improves the assembly accuracy of automobile gearbox housing while simplifying the operation process, effectively solving problems such as poor adaptability of fixtures, positioning deviation, sealing failure and low efficiency in traditional maintenance, and provides reliable technical support for the field of gearbox maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The present invention is a schematic diagram of the overall axonometric structure of a quick positioning and installation structure for an automobile gearbox housing.

[0024] Figure 2 The present invention provides a schematic structural diagram of a slide rail and a sliding block of a quick positioning and mounting structure for an automobile gearbox housing.

[0025] Figure 3 This is a schematic diagram of a connecting block and a connecting rod structure of a quick positioning installation structure for an automobile gearbox housing proposed by the present invention.

[0026] Figure 4 This is a structural schematic diagram of a fixed slide block and a hydraulic telescopic device of a quick positioning and installation structure of an automobile gearbox housing proposed by the present invention.

[0027] Figure 5 A schematic diagram of the structure of an upper gearbox housing and a lower gearbox housing of a quick positioning and mounting structure for an automobile gearbox housing proposed by the present invention.

[0028] Figure 6 This is a schematic diagram of the structure of a laser scanner and a wave spring sheet group of a rapid positioning and installation structure of an automobile gearbox housing proposed by the present invention.

[0029] Figure 7 The present invention is a schematic diagram of a side section structure of a cap nut of a quick positioning and installation structure for an automobile gearbox housing.

[0030] In the figure: 1 outer ring, 2 base, 3 slide rail, 4 slider, 5 handle, 6 connecting block, 7 connecting rod, 8 rotating shaft, 9 rectangular shell, 10 lower clamping block, 11 magnetorheological body capsule, 12 electromagnet, 13 electric telescopic rod, 14 upper clamping block, 15 fixing ring, 16 outer expansion block, 17 first spring, 18 metal nail, 19 concave block, 20 laser scanner, 21 wave spring sheet group, 22 cap nut, 23 slide groove, 24 fixed slider, 25 hydraulic telescopic device, 26 fixing block, 27 gearbox upper shell, 28 gearbox lower shell, 29 screw hole, 30 internal thread block, 31 second spring, 32 outer support rod. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Reference Figures 1 to 7 A quick positioning and installation structure for a car gearbox housing includes a base 2, a circle of slide grooves 23 are provided on the inner side of the base 2, a plurality of fixed sliders 24 are slidably engaged in the slide grooves 23, a hydraulic telescopic device 25 is fixedly installed on the side of the fixed slider 24 facing the center of the slide groove 23, and a fixed block 26 is rotatably installed on the telescopic end of the hydraulic telescopic device 25. When in use, the hydraulic telescopic device 25 is started, and the plurality of fixed blocks 26 adjust their angles to fit the side of the gearbox lower housing 28 to clamp it.

[0033] An outer ring 1 is fixedly installed on the top of the base 2, and a slide rail 3 fixedly installed on the top of the base 2 is arranged on the inner side of the outer ring 1. A slider 4 is slidably engaged on the slide rail 3. The side of the slider 4 close to the outer ring 1 is in sliding contact with the inner wall of the outer ring 1. A handle 5 is fixedly installed on the top of the slider 4. A connecting block 6 is slidably installed on the end of the slider 4 close to the center of the slide rail 3. A vertically arranged concave block 19 is rotatably installed at the front end of the connecting block 6. Connecting rods 7 are rotatably installed on both the left and right sides of the connecting block 6, so that the concave block 19 and the connecting rod 7 can be rotated in the horizontal direction.

[0034] A laser scanner 20 is fixedly installed inside the concave block 19. The laser scanner 20 is a prior art, and its specific structural design is not repeated here. The working end of the laser scanner 20 faces the side of the gearbox housing. Through holes are opened at both ends of the concave block 19. The two through holes are located on the same vertical line. A wave spring sheet group 21 is placed in the upper through hole. The wave spring sheet group 21 consists of four layers of wave sheets. The first and third layers are wave metal sheets with a certain rigidity. The second layer is a wave metal sheet made of memory metal and the wave amplitude is the same. For a larger one, the bottom layer is a corrugated rubber sheet made of rubber material; a cap nut 22 is clamped in the through hole below, and an internal thread block 30 that can slide up and down is provided at the bottom of the cap nut 22. A second spring 31 is fixedly connected between the internal thread block 30 and the inner bottom wall of the cap nut 22, and a plurality of external support rods 32 are arranged at equal angles on the outside of the second spring 31. The external support rods 32 can be deformed, and the upper end thereof is fixedly connected to the internal thread block 30, and the lower end is fixedly connected to the inner bottom wall of the cap nut 22, and a movable joint is installed at the middle position of the external support rod 32.

[0035] A rotating shaft 8 is rotatably installed at the front end of the connecting rod 7, and a rectangular shell 9 is fixedly installed at the front end of the rotating shaft 8. The existence of the rotating shaft 8 allows the rectangular shell 9 to rotate in the vertical direction. A lower clamping block 10 is fixedly installed at the lower part of the rectangular shell 9. A magnetorheological body capsule 11 is glued to the side of the lower clamping block 10 close to the gearbox housing. The magnetorheological body capsule 11 is a prior art. It will harden itself under the action of magnetic attraction, so that it can be used to clamp objects. An electromagnet 12 is installed inside the lower clamping block 10, and the electromagnet 12 is used in conjunction with the magnetorheological body capsule 11; an upper clamping block 14 is arranged above the lower clamping block 10, and the lower clamping block 10 and the upper clamping block 14 are both made of The lower clamp block 10 is made of adsorbed metal, an electric telescopic rod 13 is fixedly installed inside the lower clamp block 10, the telescopic end of the electric telescopic rod 13 is fixedly connected to the upper clamp block 14, and the upper clamp block 14 and the lower clamp block 10 can be moved closer to or farther away from each other under the action of the electric telescopic rod 13. A fixing ring 15 is fixedly installed on the side of the upper clamp block 14 close to the gearbox housing, and a first spring 17 is fixedly installed inside the fixing ring 15. Four outward expansion blocks 16 are fixedly connected at equal intervals at the lower end of the fixing ring 15, and the lower ends of the four outward expansion blocks 16 are all inclined inwardly to form a hollow needle-shaped structure together, and a metal nail 18 is movably inserted into the fixing ring 15 and the hollow needle-shaped structure.

[0036] When the present invention is working, it is first necessary to place the base 2 on a horizontal plane, adjust the fixed slider 24 to slide to a certain position in the slide groove 23, start the hydraulic telescopic device 25, and adjust the angles of multiple fixed blocks 26 to fit the side of the lower shell 28 of the gearbox to clamp it, so as to avoid the subsequent screw positioning and fixing process of the shell being more stable and accurate, reducing the impact of vibration and the risk of falling off.

[0037] After completing the fixing work of the gearbox lower shell 28, apply a circle of sealant on the gearbox lower shell 28, then cover the gearbox upper shell 27 downward, hold the handle 5 to move the slider 4 between the outer ring 1 and the slide rail 3, and correspond it to the position where the sealing problem occurs between the gearbox upper shell 27 and the gearbox lower shell 28 before the gearbox is repaired, extend the connecting block 6 from the slider 4, and align the laser scanner 20 in the concave block 19 at the front end of the connecting block 6 with the repaired part, and adjust the connecting rod 7 to correspond the rectangular shells 9 on both sides of the connecting block 6 to the screw holes 29 on both sides close to the repaired part. The magnetorheological body capsule 11 in the rectangular shell 9 fits tightly with the gearbox shell connection, which can better adapt to different shapes at different positions. At the same time, the rectangular shell 9 can be rotated by the rotating shaft 8. Due to the different screw fixing directions between the gearbox upper shell 27 and the gearbox lower shell 28, it is adapted to the situation where the screws are screwed in the upper and lower directions between the adjacent screw holes 29, and the rectangular shell 9 is rotated so that its bottom corresponds to the threaded end in the screw hole 29.

[0038] The upper clamping block 14 is moved downward, and the electric telescopic rod 13 is gradually retracted into the lower clamping block 10. The outer expansion block 16 in the closed state moves downward into the screw hole 29. The four outer expansion blocks 16 form a hollow needle-shaped body slightly smaller than the screw hole 29, and the lower end thereof is inclined inward at a certain angle, so that it can be better inserted into the screw hole 29. The insertion process is also a process of fixing the rectangular shell 9 and its internal structure. After the outer expansion block 16 is completely inserted into the screw hole 29 and the upper clamping block 14 and the lower clamping block 10 are closed together, the metal nail 18 is pressed downward, and the first spring 17 in the fixing ring 15 is pressed downward, and the metal The metal nail 18 enters the opening in the center of the multiple expansion blocks 16. Since the front end of the metal nail 18 is pointed and the diameter of the tail end is slightly larger than the opening in the center of the expansion block 16, the expansion block 16 gradually expands from the center to the outside and gradually fits completely with the inner wall of the screw hole 29. The screw hole 29 is completely aligned at this location, eliminating the existing deviation effect. At the same time, the support of the expansion block 16 to the screw hole 29 also plays a fixing role, so that the upper clamping block 14 and the lower clamping block 10, and the two and the gearbox upper shell 27 and the gearbox lower shell 28 at the repaired location fit more tightly.

[0039] When the electromagnet 12 is started, the magnetorheological body 11 that fits the shape of the gearbox housing becomes hard, further strengthening the fixing and positioning effect, preventing displacement or shaking due to external forces and other factors, and also having a certain buffering and shock-absorbing effect, reducing the vibration impact when the screws are screwed in. At the same time, the metal upper clamp block 14 and the lower clamp block 10 are affected by the magnetic force and can adsorb the gearbox housing, further strengthening the fixing effect.

[0040] The screw holes 29 on both sides of the screw hole 29 at the repair site are completely aligned and clamped tightly. Then the laser scanner 20 is started to check the fit of the repair site to see whether the size of the gap meets the sealing requirement of the gearbox. If the gap is still large, the repair work needs to be redone. The screw holes 29 are completely aligned and clamped tightly, which can provide a stable and uniform reference surface for the laser scanner 20. The scanning path will not change due to the irregularity of the screw holes 29 or the looseness of components, thereby ensuring that the scanning can be carried out according to the preset path, thereby ensuring that the scanning result can truly reflect the actual situation of the repair site, and there is no need to screw the gearbox housing and then perform inspection, which makes the operation easier. If a problem is found and needs to be adjusted, there is no need to remove the screws again, thereby reducing the wear on the threads in the screw holes 29 and ensuring the fixing effect of the screws and the sealing accuracy of the gearbox housing.

[0041] The concave block 19 corresponds to the screw hole 29 at the repaired part, and the wave spring sheet group 21 is just above the screw hole 29. The first and third layers of the wave spring sheet group 21 are wave metal sheets with a certain rigidity. After the screw is screwed in, they can provide appropriate elastic force, so that the screw maintains a certain pre-tightening force in the tightened state, to a certain extent resist the various stresses generated when the gearbox is working, to ensure that the screw will not loosen due to vibration or other external forces, enhance the structural strength, help disperse the pressure, and improve the reliability and stability of the connection; the second layer is a wave metal sheet made of memory metal and the wave amplitude is relatively larger. The memory metal has a shape memory effect. During the process of screwing in the screw, even if it is deformed by a large external force, it can return to its original shape when the external force disappears. The relatively larger waveform amplitude enables it to better adapt to the different forces and angles when the screw is screwed in, as well as the possible slight deviations of the screw hole 29, and automatically adjusts its shape to ensure a good fit with the screw hole 29 and other components, further improving the sealing and shock absorption effects. During the operation of the gearbox, due to factors such as temperature changes and mechanical vibrations, the screw holes and surrounding components may undergo certain deformations. The corrugated metal sheet made of memory metal can use its shape memory characteristics to compensate for these deformations, always maintain good support and tightening effects on the screws and screw holes, and ensure that the stability and sealing of the repaired connection are not affected; the bottom layer is a rubber bonding layer, which can effectively absorb and buffer these impact forces and vibrations, and reduce damage to the screw holes and surrounding components.

[0042] A cap nut 22 is clamped at the bottom of the concave block 19, and a long screw is screwed into the screw hole 29 at the repaired part. An internal thread block 30 that can slide up and down is provided inside the cap nut 22. When the screw is screwed into the internal thread block 30, it will drive it to slide down and compress the second spring 31. While the second spring 31 plays a shock-absorbing role, the elastic force it generates will cause the internal thread block 30 to apply a reverse force to the screw, thereby increasing the tightness of the screw connection. At the same time, the middle section of the outer support rod 32 is stretched out to the surroundings. After the screw is fully tightened, the outer support rod 32 and the inner wall of the cap nut 22 are tightly supported, further strengthening the fixing effect and improving the sealing effect of the repaired part. After completion, the laser scanner 20 is used again for inspection to ensure that the sealing effect of the repaired part is good.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A quick positioning and installation structure for a vehicle gearbox housing, comprising a base (2), characterized in that: A lower clamping mechanism is arranged on the inner side of the base (2); a circle of slide rails (3) is fixedly installed on the top of the base (2); a slider (4) is slidably engaged on the slide rail (3); a connecting block (6) is slidably installed on one end of the slider (4) close to the center of the slide rail (3); a vertically arranged concave block (19) is rotatably installed at the front end of the connecting block (6); connecting rods (7) are rotatably installed on both sides of the connecting block (6); A laser scanner (20) is fixedly installed inside the concave block (19), and the working end of the laser scanner (20) faces one side of the gearbox housing. Through holes are provided at both upper and lower ends of the concave block (19), a wave spring sheet group (21) is placed in the upper through hole, and a cap nut (22) is clamped in the lower through hole; The front end of the connecting rod (7) is connected to a rectangular shell (9) via a rotating assembly, and an upper clamping mechanism is provided on a side of the rectangular shell (9) close to the gearbox housing.

2. The rapid positioning and installation structure of the automobile gearbox housing according to claim 1, characterized in that: The lower clamping mechanism comprises a circle of slide grooves (23) provided on the inner side of the base (2), a plurality of fixed slide blocks (24) are slidably engaged in the slide grooves (23), a hydraulic telescopic device (25) is fixedly installed on one side of the fixed slide block (24) facing the center of the slide groove (23), and a fixed block (26) is rotatably installed on the telescopic end of the hydraulic telescopic device (25).

3. The rapid positioning and installation structure of the automobile gearbox housing according to claim 1, characterized in that: An outer ring (1) fixedly mounted on the top of the base (2) is arranged on the outside of the slide rail (3); a side of the slider (4) close to the outer ring (1) is in sliding contact with the inner wall of the outer ring (1); and a handle (5) is fixedly mounted on the top of the slider (4).

4. The rapid positioning and installation structure of the automobile transmission housing according to claim 1, characterized in that: The wave spring sheet group (21) is composed of four layers of wave sheets, wherein the first and third layers are wave metal sheets with rigidity, the second layer is a wave metal sheet made of memory metal, and the bottom layer is a wave rubber sheet made of rubber material.

5. The rapid positioning and installation structure of the automobile transmission housing according to claim 4, characterized in that: The waveform amplitude of the second layer of corrugated sheets is greater than that of the other three groups of corrugated sheets.

6. The rapid positioning and installation structure of the automobile transmission housing according to claim 1, characterized in that: An internal thread block (30) capable of sliding up and down is provided at the lower part of the interior of the cap nut (22); a second spring (31) is fixedly connected between the internal thread block (30) and the inner bottom wall of the cap nut (22); a plurality of external support rods (32) are arranged at equal angles on the outer side of the second spring (31); the external support rods (32) are capable of deformation, and the upper ends thereof are fixedly connected to the internal thread block (30) and the lower ends thereof are fixedly connected to the inner bottom wall of the cap nut (22); a movable joint is installed at the middle position of the external support rod (32).

7. The rapid positioning and installation structure of the automobile transmission housing according to claim 1, characterized in that: The rotating assembly comprises a rotating shaft (8) rotatably mounted on the front end of the connecting rod (7), and the front end of the rotating shaft (8) is fixedly connected to the rectangular shell (9).

8. The rapid positioning and installation structure of the automobile transmission housing according to claim 1, characterized in that: The upper clamping mechanism comprises a lower clamping block (10) fixedly mounted at the lower part of the rectangular shell (9); a magnetorheological body capsule (11) is glued to a side of the lower clamping block (10) close to the gearbox housing; an electromagnet (12) is mounted inside the lower clamping block (10); the electromagnet (12) is used in conjunction with the magnetorheological body capsule (11); and a fixed support assembly is arranged above the lower clamping block (10).

9. The rapid positioning and installation structure of the automobile transmission housing according to claim 8, characterized in that: The fixed support assembly comprises an electric telescopic rod (13) fixedly mounted inside a lower clamping block (10); an upper clamping block (14) is fixedly mounted on the telescopic end of the electric telescopic rod (13); a fixing ring (15) is fixedly mounted on a side of the upper clamping block (14) close to a gearbox housing; a first spring (17) is fixedly mounted inside the fixing ring (15); four outer expansion blocks (16) are fixedly connected at equal intervals to the lower end of the fixing ring (15); the lower ends of the four outer expansion blocks (16) are all inclined inwardly to form a hollow needle-shaped structure; a metal nail (18) is movably inserted into the fixing ring (15) and the hollow needle-shaped structure.

10. The rapid positioning and installation structure of the automobile transmission housing according to claim 9, characterized in that: The lower clamping block (10) and the upper clamping block (14) are both made of metal that can be attracted by magnetic force.

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