A perpendicularity detection device and method based on automobile transmission shaft processing

Abstract

The application relates to the technical field of transmission shaft detection, and discloses a perpendicularity detection device based on automobile transmission shaft machining, which comprises a detection box, a detection assembly arranged in the detection box, a detection table fixedly connected to the inside of the detection box and a lifting assembly arranged in the inside of the detection box, wherein the lifting assembly comprises a lifting plate slidingly connected to the inside of the detection table. Through cooperation of the detection table and the lifting assembly, a driving motor drives a first T-shaped screw plate to drive an inclined table to be inserted into an insertion groove through a bidirectional screw rod, so that a rolling wheel rolls in a rolling groove, and then the rolling wheel is driven to ascend by the lifting plate through a first mounting table; a second mounting table lifts the automobile transmission shaft through a scratch-proof wheel, so that the surface of the automobile transmission shaft does not come into contact with the detection table when the automobile transmission shaft rotates, thereby avoiding friction between the automobile transmission shaft and the detection table, and the effect of preventing friction is achieved.

Description

Technical Field

[0001] This invention relates to the field of drive shaft inspection technology, specifically to a perpendicularity inspection device and method based on automotive drive shaft machining. Background Technology

[0002] The driveshaft is an important component of a car's power transmission system. It is mainly used to connect the engine and the drive wheels, transmitting the power generated by the engine to the wheels. The design of the driveshaft needs to take into account factors such as the type of vehicle, the drive method (front-wheel drive, rear-wheel drive, or four-wheel drive), and the specific application scenario. Driveshafts are usually made of steel tubing. To reduce weight and increase strength, aluminum alloys or other lightweight, high-strength materials are sometimes used. To prevent vibration during use and improve the smoothness of its operation, the verticality of the car driveshaft is usually checked before installation and use.

[0003] Publication No. CN107036558B discloses a spatial perpendicularity detection device for the axis of the transmission shaft seat hole of a worm gear reducer. The above application includes a three-jaw positioning mechanism inside the input axis, a three-jaw positioning mechanism inside the output axis, a laser receiver (CCD sensor, lens), an input axis shaft determining component, an output axis shaft determining component, a laser, a multi-degree-of-freedom fine adjustment mechanism, a beam splitter (beam splitter lens cover, beam splitter base), a 180° beam splitter (180° beam splitter lens cover, 180° beam splitter base), a cross reticle, and an adjustment device.

[0004] Although the structures used in the aforementioned applications and prior art are relatively simple and cause little or no damage to the object being tested, when performing perpendicularity testing on automotive drive shafts, these applications and prior art can mostly only test the perpendicularity of one surface of the drive shaft, and cannot test the perpendicularity of other surfaces. Therefore, the perpendicularity test results are prone to errors, which in turn affect the normal use of the automotive drive shaft. Furthermore, when testing other surfaces of the automotive drive shaft, the surface of the drive shaft will rub against the testing support, resulting in damage to the surface of the drive shaft, which will also affect its normal use. Moreover, when testing other surfaces of the automotive drive shaft, due to the varying sizes of the drive shaft, the drive shaft will tilt inside the testing support when rotating, which will affect the subsequent perpendicularity test results. Therefore, we propose a perpendicularity testing device and method based on automotive drive shaft machining. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a perpendicularity detection device and method based on automotive driveshaft machining. It offers advantages such as multi-directional detection, friction prevention, and tilt prevention. This solves the problems of existing technologies, which, when performing perpendicularity detection on automotive driveshafts, can only detect the perpendicularity of one surface and cannot detect the perpendicularity of other surfaces. Therefore, the perpendicularity detection results are prone to errors, affecting the normal use of the automotive driveshaft. Furthermore, when detecting other surfaces of the automotive driveshaft, friction occurs between the driveshaft surface and the detection support, leading to surface damage and affecting subsequent normal use. Additionally, due to the varying lengths of the automotive driveshaft, it tilts inside the detection support during rotation, affecting the subsequent perpendicularity detection results.

[0006] To achieve the aforementioned objectives of multi-directional detection, friction prevention, and tilt prevention, this invention provides the following technical solution: a perpendicularity detection device based on automotive drive shaft machining, comprising: a detection box and detection components disposed inside the detection box.

[0007] The testing platform is fixedly connected inside the testing box, and the top of the testing platform is provided with an arc-releasing groove for placing the drive shaft.

[0008] A rotating assembly, located inside the testing station, is used to rotate the drive shaft to be tested, thereby enabling the drive shaft to be tested from all angles.

[0009] A lifting assembly is disposed inside the detection box to prevent the transmission shaft from being scratched by the detection table when the rotating assembly rotates the transmission shaft. The lifting assembly includes a lifting plate slidably connected inside the detection table. A first mounting platform is fixedly connected to the bottom of the lifting plate. Rolling wheels are rotatably connected inside the first mounting platform. A plurality of second mounting platforms are fixedly connected to the top of the lifting plate. Anti-scratch wheels are rotatably connected inside the plurality of second mounting platforms.

[0010] An anti-tilt component is disposed on the surface of the lifting component to prevent the drive shaft from tilting when the rotating component rotates the drive shaft.

[0011] Furthermore, the lifting assembly also includes a drive motor fixedly connected inside the detection box. The output end of the drive motor is fixedly connected to a bidirectional screw. The surface of the bidirectional screw is threadedly connected to a first T-shaped screw plate. A tilting platform is fixedly connected to one side of the first T-shaped screw plate.

[0012] Furthermore, the top of the tilting stage is provided with a rolling groove for the rolling wheel to move, and the surface of the detection stage is provided with an insertion groove for the tilting stage to move.

[0013] Furthermore, the rotating assembly includes a support bar fixedly connected to the surface and back of the first T-shaped screw plate and a rotating rod fixedly connected inside the anti-scratch wheel, wherein a T-shaped toothed plate is fixedly connected to the surface of the support bar.

[0014] Furthermore, the rotating rod is rotatably connected to several second mounting platforms, and a fixed gear is fixedly connected to the surface of the rotating rod, which meshes with a T-shaped gear plate for transmission.

[0015] Furthermore, the anti-skewing component includes a second T-shaped screw plate threaded onto the surface of the bidirectional screw, and three fixed cylinders are fixedly connected to one side of the second T-shaped screw plate. Each of the three fixed cylinders has a compression spring fixedly connected inside, and each of the fixed cylinders has an extension cylinder slidably connected inside.

[0016] Furthermore, one end of the compression spring is fixedly connected to one end of the extension cylinder, and a limit wheel is rotatably connected inside the end of the extension cylinder away from the compression spring, and the surface of the limit wheel is provided with a rubber layer.

[0017] Furthermore, a number of fixing blocks are fixedly connected inside the testing platform and on the inner wall of the arc release groove. Each of the fixing blocks is rotatably connected to an auxiliary wheel. Three slots are provided on one side of the testing platform for the movement of the fixing cylinder and the extension cylinder.

[0018] Furthermore, the surface of the testing box is provided with a control panel, the top of the testing box is fixedly connected with an audible and visual alarm, the interior of the testing box is provided with a moving groove for the T-shaped toothed plate to move, the surface of the testing box is hinged with a box door, and the surface of the box door is provided with an observation window.

[0019] This invention also provides a perpendicularity detection method based on automotive drive shaft machining, which specifically includes the following steps:

[0020] Step 1: Place the car drive shaft to be inspected in the arc-proof groove, and then use the inspection component to inspect the perpendicularity of the car drive shaft;

[0021] Step 2: When it is necessary to test the perpendicularity of different surfaces of the car drive shaft, start the drive motor. The drive motor drives the first T-shaped screw plate to move through the bidirectional screw, so that the first T-shaped screw plate drives the T-shaped toothed plate to move through the support bar. As the T-shaped toothed plate moves continuously, it meshes with the fixed gear, which in turn drives the rotating rod to rotate through the fixed gear. The rotating rod drives the car drive shaft to rotate through the anti-scratch wheel, so that the different surfaces of the car drive shaft gradually face the detection component, thereby enabling the detection component to detect the different surfaces of the car drive shaft.

[0022] Step 3: To prevent the car driveshaft from rubbing against the testing table during rotation, the double-headed screw drives the first T-shaped screw plate to insert the tilting table into the insertion slot. As the tilting table is continuously inserted, the rolling wheel rolls in the rolling slot, which in turn causes the rolling wheel to lift the lifting plate through the first mounting platform. The second mounting platform lifts the car driveshaft through the anti-scratch wheel, so that the other surfaces of the car driveshaft come into contact with the auxiliary wheel. Therefore, when the car driveshaft rotates, the surface of the car driveshaft will not come into contact with the testing table, thus avoiding friction between the car driveshaft and the testing table.

[0023] Step 4: To prevent the car driveshaft from shifting during rotation, while the double-headed screw drives the first T-shaped screw plate to move, the double-headed screw also drives the second T-shaped screw plate to move. This causes the second T-shaped screw plate to insert the fixed cylinder and extension cylinder into the slot. As the fixed cylinder and extension cylinder continue to move, the limiting wheel gradually comes into contact with the surface of the car driveshaft. The car driveshaft then presses the extension cylinder through the limiting wheel, causing the extension cylinder to be housed in the fixed cylinder and compressing the compression spring. Through the tension of the compression spring, the limiting wheel remains in contact with the surface of the car driveshaft, preventing the car driveshaft from tilting during rotation and thus affecting subsequent perpendicularity testing.

[0024] Compared with the prior art, the present invention provides a perpendicularity detection device and method based on the machining of automotive drive shafts, which has the following beneficial effects:

[0025] 1. The perpendicularity detection device and method based on automotive drive shaft machining utilizes a detection table and a lifting assembly. The drive motor, via a bidirectional screw, drives a first T-shaped screw plate to insert an inclined table into an insertion slot. As the inclined table is continuously inserted, a rolling wheel rolls in the rolling groove, causing the rolling wheel to lift the lifting plate via a first mounting platform. A second mounting platform lifts the automotive drive shaft via anti-scratch wheels, bringing other surfaces of the drive shaft into contact with auxiliary wheels. Therefore, when the automotive drive shaft rotates, its surfaces will not contact the detection table, thus preventing friction between the drive shaft and the detection table and achieving the effect of preventing friction.

[0026] 2. The perpendicularity detection device and method based on automotive drive shaft machining utilizes the combined use of a lifting component and a rotating component. Simultaneously with the movement of the first T-shaped screw plate, the first T-shaped screw plate drives the T-shaped toothed plate to move via a support bar. As the T-shaped toothed plate continues to move, it meshes with a fixed gear, which in turn drives a rotating rod to rotate. The rotating rod, through a scratch-resistant wheel, causes the automotive drive shaft to rotate, gradually bringing different surfaces of the automotive drive shaft towards the detection component. This allows the detection component to inspect different surfaces of the automotive drive shaft, achieving a multi-directional detection effect.

[0027] 3. The perpendicularity detection device and method based on automotive drive shaft machining utilizes the combined use of a lifting component and an anti-tilting component. Simultaneously, the bidirectional screw drives the first T-shaped screw plate to move, while the second T-shaped screw plate moves, causing the fixed cylinder and extension cylinder to insert into the slot. As the fixed cylinder and extension cylinder continue to move, the limiting wheel gradually contacts the surface of the automotive drive shaft. The drive shaft then presses against the extension cylinder through the limiting wheel, causing the extension cylinder to be housed in the fixed cylinder and compressing the compression spring. Through the tension of the compression spring, the limiting wheel remains in contact with the surface of the automotive drive shaft, preventing the drive shaft from tilting during rotation and thus affecting subsequent perpendicularity detection, thereby achieving the effect of preventing tilting.

[0028] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0030] Figure 2 This is a cross-sectional three-dimensional structural diagram of the detection box of the present invention;

[0031] Figure 3 This is a three-dimensional schematic diagram of the internal structure of the testing box of the present invention;

[0032] Figure 4 This is a three-dimensional schematic diagram of the internal structure of the detection box of the present invention from another perspective;

[0033] Figure 5 This is a schematic diagram of the three-dimensional structure of the testing platform of the present invention;

[0034] Figure 6 This is a schematic diagram of the three-dimensional structure of the lifting plate of the present invention;

[0035] Figure 7 This is a three-dimensional structural diagram of the lifting component, rotating component, and anti-tilting component of the present invention;

[0036] Figure 8 This is a three-dimensional structural diagram of the drive motor and lifting plate of the present invention;

[0037] Figure 9 This is a three-dimensional structural diagram of the support bar and rotating rod of the present invention;

[0038] Figure 10 This is a schematic diagram of the three-dimensional structure of the second T-shaped screw plate of the present invention;

[0039] Figure 11 This is a cross-sectional three-dimensional structural diagram of the fixed cylinder of the present invention.

[0040] In the diagram: 1. Detection box; 11. Control panel; 12. Audible and visual alarm; 13. Detection assembly; 14. Detection table; 141. Fixing block; 142. Auxiliary wheel; 143. Insertion slot; 144. Arc release slot; 145. Slotting; 15. Moving slot; 16. Box door; 161. Observation window; 2. Lifting assembly; 21. Drive motor; 211. Bidirectional screw; 212. First T-shaped screw plate; 22. Inclined table; 221. Rolling groove; 23. Lifting plate; 231. First mounting table; 232. Rolling wheel; 233. Second mounting table; 234. Anti-scratch wheel; 3. Rotating assembly; 31. Support bar; 311. T-shaped toothed plate; 32. Rotating rod; 321. Fixed gear; 4. Anti-tilt assembly; 41. Second T-shaped screw plate; 411. Fixed cylinder; 412. Compression spring; 42. Extension cylinder; 421. Limit wheel. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0043] For a specific implementation example, please refer to Implementation Example 1. Figures 1 to 8 A perpendicularity testing device based on automotive drive shaft machining includes: a testing box 1 and a testing component 13 disposed inside the testing box 1.

[0044] The testing table 14 is fixedly connected inside the testing box 1, and the top of the testing table 14 is provided with an arc-releasing groove 144 for placing the drive shaft.

[0045] Rotating component 3 is located inside the inspection table 14 and is used to rotate the drive shaft to be inspected, thereby enabling the drive shaft to be inspected from all angles.

[0046] Lifting assembly 2, located inside the detection box 1, is used to prevent the transmission shaft from being scratched by the detection table 14 when the rotating assembly 3 rotates the transmission shaft. Lifting assembly 2 includes a lifting plate 23 slidably connected inside the detection table 14. A first mounting platform 231 is fixedly connected to the bottom of the lifting plate 23. A rolling wheel 232 is rotatably connected inside the first mounting platform 231. Several second mounting platforms 233 are fixedly connected to the top of the lifting plate 23. Anti-scratch wheels 234 are rotatably connected inside the several second mounting platforms 233. Lifting assembly 2 also includes a drive motor 21 fixedly connected inside the detection box 1. A bidirectional screw 211 is fixedly connected to the output end of the drive motor 21. A first T-shaped screw plate 212 is threadedly connected to the surface of the bidirectional screw 211. An inclined platform 22 is fixedly connected to one side of the first T-shaped screw plate 212. A rolling groove 221 for the rolling wheel 232 to move is opened on the top of the inclined platform 22. An insertion groove 143 for the inclined platform 22 to move is opened on the surface of the detection table 14.

[0047] Anti-tilt component 4 is disposed on the surface of lifting component 2 to prevent the drive shaft from tilting when rotating component 3 rotates the drive shaft;

[0048] It should be noted that the control panel 11 is electrically connected to the audible and visual alarm 12, the detection component 13, and the drive motor 21. The detection component 13 includes a laser emitter and a laser receiver fixedly connected to both sides of the inner wall of the detection box 1. The laser emitted by the laser emitter is received by the laser receiver to determine whether the verticality of the car drive shaft is qualified. When the detection component 13 detects that the verticality of the car drive shaft is not qualified, the detection component 13 controls the audible and visual alarm 12 to issue a warning and uploads the detection result to the inside of the control panel 11. The surface of the observation window 161 is provided with a light-shielding black film to prevent external light from shining into the inside of the detection box 1 and affecting the verticality detection of the car drive shaft. The operator can observe the verticality detection status of the car drive shaft through the observation window 161. The end of the bidirectional screw 211 away from the drive motor 21 is rotatably connected to the inside of the detection box 1, and the first T-shaped screw plate 212 is slidably connected to the inside of the detection box 1.

[0049] When it is necessary to prevent friction between the car drive shaft and the testing table 14, the drive motor 21 is started. The drive motor 21 drives the first T-shaped screw plate 212 through the bidirectional screw 211 to drive the tilting table 22 to be inserted into the insertion slot 143. As the tilting table 22 is continuously inserted, the rolling wheel 232 rolls in the rolling groove 221, and then the rolling wheel 232 drives the lifting plate 23 to rise through the first mounting table 231. The second mounting table 233 lifts the car drive shaft through the anti-scratch wheel 234, so that the other surfaces of the car drive shaft come into contact with the auxiliary wheel 142. Thus, when the car drive shaft is rotating, the surface of the car drive shaft will not come into contact with the testing table 14, thereby avoiding friction between the car drive shaft and the testing table 14.

[0050] For a specific embodiment two, please refer to Figures 1 to 8 Based on the perpendicularity detection device for automotive drive shaft machining provided in Specific Embodiment 1, this embodiment provides a further technical solution:

[0051] The rotating assembly 3 includes a support bar 31 fixedly connected to the surface and back of the first T-shaped screw plate 212 and a rotating rod 32 fixedly connected inside the anti-scratch wheel 234. A T-shaped toothed plate 311 is fixedly connected to the surface of the support bar 31. The rotating rod 32 is rotatably connected to several second mounting platforms 233. A fixed gear 321 is fixedly connected to the surface of the rotating rod 32. The fixed gear 321 meshes with the T-shaped toothed plate 311 for transmission. A control panel 11 is provided on the surface of the detection box 1. An audible and visual alarm 12 is fixedly connected to the top of the detection box 1. A moving groove 15 for the T-shaped toothed plate 311 to move is opened inside the detection box 1. A door 16 is hinged to the surface of the detection box 1. An observation window 161 is provided on the surface of the door 16.

[0052] When it is necessary to perform perpendicularity testing on different surfaces of the automotive drive shaft, while the first T-shaped screw plate 212 moves, the first T-shaped screw plate 212 drives the T-shaped toothed plate 311 to move through the support bar 31. As the T-shaped toothed plate 311 moves continuously, it meshes with the fixed gear 321, which in turn drives the rotating rod 32 to rotate. The rotating rod 32 drives the automotive drive shaft to rotate through the anti-scratch wheel 234, so that different surfaces of the automotive drive shaft gradually face the detection component 13, thereby enabling the detection component 13 to detect different surfaces of the automotive drive shaft.

[0053] For a specific embodiment three, please refer to Figures 1 to 8 Based on the perpendicularity detection device for automotive drive shaft machining provided in Specific Embodiment 2, this embodiment provides a further technical solution:

[0054] The anti-skewing component 4 includes a second T-shaped screw plate 41 threadedly connected to the surface of the bidirectional screw 211. Three fixed cylinders 411 are fixedly connected to one side of the second T-shaped screw plate 41. A compression spring 412 is fixedly connected inside each of the three fixed cylinders 411. An extension cylinder 42 is slidably connected inside each of the fixed cylinders 411. One end of the compression spring 412 is fixedly connected to one end of the extension cylinder 42. A limit wheel 421 is rotatably connected inside the end of the extension cylinder 42 away from the compression spring 412. A rubber layer is provided on the surface of the limit wheel 421. Several fixed blocks 141 are fixedly connected inside the detection table 14 and located on the inner wall of the arc release groove 144. An auxiliary wheel 142 is rotatably connected inside each of the several fixed blocks 141. Three slots 145 are provided on one side of the detection table 14 for the fixed cylinders 411 and the extension cylinders 42 to move.

[0055] It should be noted that the inside of the test box 1 is provided with a fixing groove for the second T-shaped screw plate 41 to move, so that the second T-shaped screw plate 41 can move smoothly when it moves on the surface of the bidirectional screw 211.

[0056] When it is necessary to prevent the car drive shaft from tilting during rotation, while the bidirectional screw 211 drives the first T-shaped screw plate 212 to move, the bidirectional screw 211 also drives the second T-shaped screw plate 41 to move. The second T-shaped screw plate 41 drives the fixed cylinder 411 and the extension cylinder 42 to be inserted into the slot 145. As the fixed cylinder 411 and the extension cylinder 42 move continuously, the limiting wheel 421 gradually comes into contact with the surface of the car drive shaft. The car drive shaft is pressed against the extension cylinder 42 by the limiting wheel 421, which in turn causes the extension cylinder 42 to be housed in the fixed cylinder 411 and compress the compression spring 412. Through the extension and contraction tension of the compression spring 412, the limiting wheel 421 is always in contact with the surface of the car drive shaft, thus preventing the car drive shaft from tilting during rotation and affecting the subsequent perpendicularity test.

[0057] In a specific embodiment four, the present invention also provides a perpendicularity detection method based on the machining of automotive drive shafts, which specifically includes the following steps:

[0058] Step 1: Place the car drive shaft to be inspected in the arc relief groove 144, and then use the inspection component 13 to inspect the perpendicularity of the car drive shaft.

[0059] Step 2: When it is necessary to test the perpendicularity of different surfaces of the car drive shaft, start the drive motor 21. The drive motor 21 drives the first T-shaped screw plate 212 to move through the bidirectional screw 211. The first T-shaped screw plate 212 drives the T-shaped toothed plate 311 to move through the support bar 31. As the T-shaped toothed plate 311 moves continuously, it meshes with the fixed gear 321. The fixed gear 321 then drives the rotating rod 32 to rotate. The rotating rod 32 drives the car drive shaft to rotate through the anti-scratch wheel 234. This causes the different surfaces of the car drive shaft to gradually face the detection component 13, enabling the detection component 13 to test the different surfaces of the car drive shaft.

[0060] Step 3: To prevent the car drive shaft from rubbing against the testing table 14 during rotation, the bidirectional screw 211 drives the first T-shaped screw plate 212 to insert the tilting table 22 into the insertion slot 143. As the tilting table 22 is continuously inserted, the rolling wheel 232 rolls in the rolling groove 221, which in turn causes the rolling wheel 232 to drive the lifting plate 23 to rise through the first mounting table 231. The second mounting table 233 lifts the car drive shaft through the anti-scratch wheel 234, so that the other surfaces of the car drive shaft come into contact with the auxiliary wheel 142. Thus, when the car drive shaft rotates, the surface of the car drive shaft will not come into contact with the testing table 14, thereby avoiding friction between the car drive shaft and the testing table 14.

[0061] Step 4: To prevent the car drive shaft from shifting during rotation, while the bidirectional screw 211 moves the first T-shaped screw plate 212, the bidirectional screw 211 also moves the second T-shaped screw plate 41. This causes the second T-shaped screw plate 41 to move the fixed cylinder 411 and the extension cylinder 42 into the slot 145. As the fixed cylinder 411 and the extension cylinder 42 move continuously, the limiting wheel 421 gradually comes into contact with the surface of the car drive shaft. The car drive shaft then presses the extension cylinder 42 through the limiting wheel 421, causing the extension cylinder 42 to be housed in the fixed cylinder 411 and compressing the compression spring 412. Through the tension of the compression spring 412, the limiting wheel 421 remains in contact with the surface of the car drive shaft, preventing the car drive shaft from tilting during rotation and affecting subsequent perpendicularity testing.

[0062] Working principle: In use, open the box door 16 and place the car drive shaft to be inspected in the arc-relieving groove 144, then close the box door 16. When it is necessary to inspect the surface of the car drive shaft, start the inspection component 13 through the control panel 11 to make the inspection component 13 perform perpendicularity inspection on the car drive shaft. When it is necessary to inspect the perpendicularity of different surfaces of the car drive shaft, start the drive motor 21. The drive motor 21 drives the first T-shaped screw plate 212 to move through the bidirectional screw 211. The first T-shaped screw plate 212 drives the T-shaped toothed plate 311 to move through the support bar 31. As the T-shaped toothed plate moves, the first T-shaped screw plate 212 drives the T-shaped toothed plate 311 to move. The continuous movement of 311 causes the T-shaped toothed plate 311 to mesh with the fixed gear 321, which in turn drives the rotating rod 32 to rotate. The rotating rod 32 drives the car drive shaft to rotate via the anti-scratch wheel 234, causing different surfaces of the car drive shaft to gradually face the detection component 13. This allows the detection component 13 to detect the different surfaces of the car drive shaft. At the same time, the bidirectional screw 211 drives the first T-shaped screw plate 212 to drive the tilting stage 22 to insert into the insertion groove 143. As the tilting stage 22 is continuously inserted, the rolling wheel 232 rolls in the rolling groove 221, thereby causing... The rolling wheel 232 drives the lifting plate 23 to rise via the first mounting platform 231. The second mounting platform 233 lifts the car drive shaft via the anti-scratch wheel 234, so that the other surfaces of the car drive shaft contact the auxiliary wheel 142. Therefore, when the car drive shaft rotates, the surface of the car drive shaft will not contact the inspection platform 14, thus avoiding friction between the car drive shaft and the inspection platform 14. To prevent the car drive shaft from tilting during rotation, while the bidirectional screw 211 drives the first T-shaped screw plate 212 to move, the bidirectional screw 211 also drives the second T-shaped screw plate 41 to move. The second T-shaped screw plate 41 drives the fixed cylinder 411 and the extension cylinder 42 to be inserted into the slot 145. As the fixed cylinder 411 and the extension cylinder 42 move continuously, the limiting wheel 421 gradually comes into contact with the surface of the car drive shaft. The car drive shaft is squeezed by the limiting wheel 421, which in turn causes the extension cylinder 42 to be housed in the fixed cylinder 411 and compress the compression spring 412. Through the extension and contraction tension of the compression spring 412, the limiting wheel 421 is always in contact with the surface of the car drive shaft, so as to prevent the car drive shaft from tilting when it rotates, which would affect the subsequent verticality test.

[0063] Any content not described in detail in this specification is prior art known to those skilled in the art.

[0064] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0065] Parallelism: The parallelism defined in this application is not limited to absolute parallelism. This definition of parallelism can be understood as basic parallelism. It allows for situations where the parallelism is not absolute due to factors such as assembly tolerance, design tolerance, and structural flatness. It also allows for errors within a small angular range, such as within 10 degrees of assembly error. These can all be considered as parallel relationships.

[0066] Perpendicularity: The perpendicularity defined in this application is not limited to an absolute perpendicular intersection (with an included angle of 90 degrees). It is permissible for non-absolute perpendicular intersections caused by factors such as assembly tolerances, design tolerances, and structural flatness. It is permissible for errors within a small angular range, such as an assembly error range of 80 to 100 degrees, which can all be understood as a perpendicular relationship.

[0067] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A perpendicularity detection device based on automotive driveshaft machining, comprising: The detection box (1) and the detection component (13) disposed inside the detection box (1) are characterized in that: The testing platform (14) is fixedly connected inside the testing box (1), and the top of the testing platform (14) is provided with an arc-releasing groove (144) for placing the transmission shaft. The rotating component (3) is located inside the testing table (14) and is used to flip the transmission shaft to be tested, thereby enabling the transmission shaft to be tested from all directions. The lifting assembly (2) is located inside the detection box (1) to prevent the transmission shaft from being scratched by the detection table (14) when the rotating assembly (3) rotates. The lifting assembly (2) includes a lifting plate (23) slidably connected inside the detection table (14). The bottom of the lifting plate (23) is fixedly connected to a first mounting platform (231). The first mounting platform (231) is rotatably connected to a rolling wheel (232). The top of the lifting plate (23) is fixedly connected to several second mounting platforms (233). The interior of each of the several second mounting platforms (233) is rotatably connected to an anti-scratch wheel (234). The lifting assembly (2) also includes a drive motor (21) fixedly connected inside the detection box (1). The output end of the drive motor (21) is fixedly connected to a bidirectional screw (211). The surface of the bidirectional screw (211) is threadedly connected to a first T-shaped screw plate (212). One side of the first T-shaped screw plate (212) is fixedly connected to an inclined platform (22). An anti-tilt assembly (4) is provided on the surface of the lifting assembly (2) to prevent the drive shaft from tilting when the rotating assembly (3) rotates. The anti-tilt assembly (4) includes a second T-shaped screw plate (41) threaded to the surface of the bidirectional screw (211). Three fixed cylinders (411) are fixedly connected to one side of the second T-shaped screw plate (41). A compression spring (412) is fixedly connected inside each of the three fixed cylinders (411). An extension cylinder (42) is slidably connected inside each of the fixed cylinders (411).

2. The perpendicularity detection device based on automotive drive shaft machining according to claim 1, characterized in that: The top of the tilting platform (22) is provided with a rolling groove (221) for the rolling wheel (232) to move, and the surface of the detection platform (14) is provided with an insertion groove (143) for the tilting platform (22) to move.

3. The perpendicularity detection device based on automotive drive shaft machining according to claim 1, characterized in that: The rotating assembly (3) includes a support bar (31) fixedly connected to the surface and back of the first T-shaped screw plate (212) and a rotating rod (32) fixedly connected inside the anti-scratch wheel (234). The surface of the support bar (31) is fixedly connected to a T-shaped toothed plate (311).

4. The perpendicularity detection device based on automotive drive shaft machining according to claim 3, characterized in that: The rotating rod (32) is rotatably connected to several second mounting platforms (233). A fixed gear (321) is fixedly connected to the surface of the rotating rod (32), and the fixed gear (321) meshes with the T-shaped toothed plate (311) for transmission.

5. The perpendicularity detection device based on automotive drive shaft machining according to claim 4, characterized in that: One end of the compression spring (412) is fixedly connected to one end of the extension cylinder (42), and a limiting wheel (421) is rotatably connected inside the end of the extension cylinder (42) away from the compression spring (412), and a rubber layer is provided on the surface of the limiting wheel (421).

6. The perpendicularity detection device based on automotive drive shaft machining according to claim 5, characterized in that: The testing platform (14) is internally connected to a number of fixed blocks (141) on the inner wall of the arc release groove (144). Each of the fixed blocks (141) is rotatably connected to an auxiliary wheel (142). The testing platform (14) has three slots (145) on one side for the fixed cylinder (411) and the extension cylinder (42) to move.

7. The perpendicularity detection device based on automotive drive shaft machining according to claim 1, characterized in that: The surface of the detection box (1) is provided with a control panel (11), the top of the detection box (1) is fixedly connected with an audible and visual alarm (12), the inside of the detection box (1) is provided with a moving groove (15) for the T-shaped toothed plate (311) to move, the surface of the detection box (1) is hinged with a box door (16), and the surface of the box door (16) is provided with an observation window (161).

8. A method for detecting perpendicularity in automotive driveshaft machining, characterized in that: The perpendicularity detection device based on the machining of automotive drive shafts as described in any one of claims 1-7, the perpendicularity detection method specifically includes the following steps: Step 1: Place the car drive shaft to be inspected in the arc relief groove (144), and then inspect the perpendicularity of the car drive shaft through the inspection component (13); Step 2: When it is necessary to test the perpendicularity of different surfaces of the car drive shaft, lift the component (2) to drive the rotating component (3), so that the rotating component (3) drives the car drive shaft to rotate, thereby making the different surfaces of the car drive shaft face the testing component (13). Step 3: When it is necessary to avoid friction between the car drive shaft and the test bench (14) during rotation, the anti-scratch wheel (234) lifts the car drive shaft when the lifting assembly (2) drives the rotating assembly (3), thereby avoiding friction between the car drive shaft and the test bench (14). Step 4: When it is necessary to prevent the car drive shaft from shifting during rotation, lift component (2) to synchronously drive anti-skewing component (4), so that anti-skewing component (4) limits the car drive shaft, thereby preventing the car drive shaft from shifting during rotation.

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