Rapid detection tool for limiting length of boss of outer hub

Abstract

The invention discloses a rapid detection tool for the limiting length of an outer hub boss, and the tool comprises a supporting pedestal, a limiting reference part and a rotating cover plate, the limiting reference part and the rotating cover plate are disposed on the supporting pedestal in a sleeving manner, and the rotating cover plate can rotate relative to the supporting pedestal. A detection head is arranged between the limiting reference piece and the rotary cover plate, and a detection piece body used for detection is installed on the outer layer of the limiting reference piece in a matched mode; a plurality of positioning assemblies for limiting rotation are arranged between the supporting base and the rotating cover plate, and each positioning assembly comprises a ball; a limiting pin used for fixing the detection head and the rotary cover plate is arranged between the detection head and the rotary cover plate, and a gap is arranged between the upper end face of the limiting reference piece and the lower end face of the rotary cover plate. According to the invention, the relative position of the detection head and the detection piece body is set, then the detection head is rotated, and an operator can rapidly detect whether the corresponding position of a product is qualified in combination with the detection principle of the go gauge and the no-go gauge.

Description

Technical Field

[0001] This invention belongs to the field of workpiece inspection technology, specifically relating to a rapid inspection tool for limiting the length of an outer hub boss. Background Technology

[0002] In the production of mechanical parts, gear hubs are structurally complex and require numerous inspection points. Testing personnel use height gauges to inspect each point individually, and the time spent calculating and analyzing the inspection structure significantly lengthens the inspection time for the first and last pieces, thus impacting the actual effective processing time per shift and resulting in a severely insufficient inspection ratio. Existing patent CN121140694A discloses a height detection device and method. This device uses a first and second driving component to achieve multiple positioning of the product, then uses a detection component (a sensor) to detect the product's height. This detection component requires corresponding external control circuit components for inspection, leading to high design and manufacturing costs. It also has high calibration requirements; failure of the detection head or control circuit on the component prevents normal inspection. Furthermore, existing detection devices can only perform point-by-point inspections on regular products, resulting in poor versatility. Summary of the Invention

[0003] This invention addresses the problems existing in the prior art by designing a rapid detection tool for the limiting length of the outer hub boss. By setting the relative position of the detection head and the body of the detection part, and then rotating the detection head, combined with the detection principles of go gauges and no-go gauges, the operator can quickly detect whether the corresponding position of the product is qualified.

[0004] The objective of this invention is achieved through the following technical solution: a rapid detection tool for limiting the length of an outer hub boss, comprising a support base, a limiting reference component, and a rotating cover plate. Both the limiting reference component and the rotating cover plate are sleeved and mounted on the support base, and the rotating cover plate can rotate relative to the support base. A detection head is provided between the limiting reference component and the rotating cover plate, and a detection component body for detection is adapted and installed on the outer layer of the limiting reference component. A plurality of positioning components for limiting rotation are provided between the support base and the rotating cover plate, and the positioning components include ball bearings. A limiting pin for fixing both is provided between the detection head and the rotating cover plate, and a gap is provided between the upper end face of the limiting reference component and the lower end face of the rotating cover plate.

[0005] Preferably, the detection component body has several circumferentially distributed bosses, and the lower end face of the limiting reference component is horizontally placed on the bosses; the inner wall of the detection component body has several circumferentially distributed meshing grooves, and the outer ring of the limiting reference component has several circumferentially distributed meshing protrusions; the outer contours of the meshing grooves and meshing protrusions are adapted to each other, and the meshing protrusions are positioned in the meshing grooves during the detection process; the inner wall of the detection component body also has a retaining spring groove, which is set higher than the bosses; during the detection process, the detection head is positioned in the retaining spring groove, and the thickness of the detection head is adapted to the axial length of the retaining spring groove.

[0006] Preferably, the support base has an annular step for placing the limiting reference component, and the detection component body has several circumferentially distributed bosses. The lower end face of the limiting reference component is simultaneously placed on the annular step and the bosses. The limiting reference component has a mounting hole at its center, and the main body of the support base is disposed in the mounting hole. The outer contour of the mounting hole is adapted to the outer contour of the support base, and the limiting reference component is tightly fitted to the support base. A rotating cover plate is also fitted on the outer side of the support base, and the outer contour of the rotating cover plate is adapted to the outer contour of the support base.

[0007] Preferably, a detection head is provided between the rotating cover plate and the limiting reference component. The rotating cover plate has a first slot for installing the detection head, and the outer contour of the first slot is adapted to the outer contour of the detection head. A retaining spring groove is provided on the inner wall of the detection component body, and the detection head extends into the retaining spring groove, with a gap between the end of the detection head and the inner wall of the retaining spring groove.

[0008] Preferably, the detection head is tightly fitted into the first slot, and when the detection head is installed in the first slot, the end of the detection head abuts against the outer wall of the support base; a limiting pin is provided between the detection head and the rotating cover plate for fixing the two, and a vertical blind hole is provided in the rotating cover plate for installing the limiting pin; the axial length of the vertical blind hole is greater than the axial length of the limiting pin, and the limiting pin is arranged adjacent to the limiting reference piece.

[0009] Preferably, the detection head during the detection process includes a go gauge type detection head and a no-go gauge type detection head; when performing go gauge detection, a go gauge type detection head is installed in the first slot, and when performing no-go gauge detection, a no-go gauge type detection head is installed in the first slot; the detection head is provided with a positioning hole for installing a limit pin, the limit pin extends into the positioning hole, and the outer diameter of the limit pin is adapted to the inner diameter of the positioning hole and the inner diameter of the vertical blind hole, respectively.

[0010] Place the part to be inspected horizontally on the worktable, ensuring the parts are sized to fit the worktable. The worktable serves as a positioning mold and is not shown in the accompanying diagram. Install the inspection head into the first slot, aligning the positioning hole with the vertical blind hole. To facilitate installation, invert the rotating cover plate. The operator manually adjusts the head's position to align the vertical blind hole with the positioning hole. Then, install the limiting pin into the positioning hole and the vertical blind hole. The limiting pin radially limits the inspection head, preventing its end from contacting the inner wall of the retaining ring groove. Next, tightly fit the limiting reference piece onto the annular step of the support base. Finally, install the rotating cover plate onto the support base, ensuring the inspection head is in contact with the limiting reference piece. Then, the rotating cover plate and the support base are locked together by a positioning component; at this time, the rotating cover plate, the detection head, and the limiting reference component are sequentially fitted together vertically; since the detection head is located between the rotating cover plate and the limiting reference component, the rotating cover plate and the detection head are limited by the first slot; here, when designing the detection head, the thickness of the detection head needs to be adapted and adjusted; when the upper end face of the detection head is fitted with the top end face of the first slot, there is a gap between the lower end face of the rotating cover plate and the upper end face of the limiting reference component, so that when the rotating cover plate drives the detection head to rotate, the rotating cover plate and the support base can rotate smoothly, avoiding the detection head from getting stuck and affecting the detection results.

[0011] The test piece has a boss and a snap ring groove. The operator needs to measure the vertical height from the upper end face of the boss to the top inner wall of the snap ring groove. A limiting reference piece is placed on the boss, with its engaging protrusion aligned with the engaging groove on the test piece. This allows the support base and rotating cover to be installed onto the test piece while preventing the limiting reference piece from rotating. When the limiting reference piece is placed on the boss, its upper end face is flush with the bottom end face of the snap ring groove. Then, the test head is used to simulate a standard mechanical snap ring. By rotating the test head, the vertical height of the snap ring groove is determined to be within acceptable limits. In actual testing, the principles of go gauges and no-go gauges in mechanical inspection are applied. Therefore, two sets of test heads are required for each test: one go gauge type for measuring the minimum difference limit of the snap ring groove, and one no-go gauge type for measuring the maximum difference limit. When using a go gauge type inspection head, rotating the cover plate to rotate the inspection head multiple times, if the cover plate rotates smoothly each time without jamming, it indicates that the vertical height of the circlip groove is not less than the thickness of the inspection head, and the go gauge inspection of the circlip groove is qualified; otherwise, the inspection is unqualified. When using a no-go gauge type inspection head, rotating the cover plate to rotate the no-go gauge type inspection head, if rotating the cover plate to rotate the inspection head more than one revolution, it indicates that the height of the circlip groove is too high and does not meet the inspection requirements; if rotating the cover plate, it indicates that the maximum height of the circlip groove is not greater than the thickness of the inspection head, and the inspection is qualified.

[0012] Preferably, a plurality of positioning components for limiting rotation are provided between the support base and the rotating cover plate. The positioning components further include locking screws, locking nuts and springs. The support base is provided with threaded holes for installing the positioning components, and the rotating cover plate is provided with an annular groove for limiting rotation. The positioning components are positioned facing the annular groove.

[0013] Preferably, the locking screw is installed in a threaded hole and threadedly connected to the support base; the head of the locking screw is oriented towards the annular groove, and the locking screw has an installation groove containing a ball and a spring; the open end of the locking screw has an annular limiting protrusion, the outer diameter of which is adapted to the diameter of the ball, and in the default state, the ball is engaged with the annular limiting protrusion and protrudes outward from the locking screw; one end of the spring abuts against the ball, and the other end abuts against the inner wall of the installation groove; the outer layer of the locking screw has a locking nut that is threadedly connected to it, and in the default state, the locking nut is flush against the inner wall of the support base.

[0014] Preferably, the rotating cover plate has a vertical blind hole for installing a limit pin, and the annular groove is set higher than the vertical blind hole; the annular groove and the vertical blind hole are set perpendicular to each other, and in the default state, the annular groove and the limit reference piece are set parallel to each other; the head of the locking screw extends and is installed in the annular groove, and a gap is left between the locking screw and the upper or lower end face of the annular groove.

[0015] Preferably, the support base has a handle fixedly connected to it inside, and the handle is arranged parallel to the upper end surface of the limiting reference member.

[0016] The rotating cover plate is radially limited by a support base and positioning components, ensuring better concentricity during rotation and preventing interference between the detection head and the retaining groove of the detection piece, thus improving detection accuracy. A locking screw adjusts the distance between the ball bearing and the annular groove, ensuring the ball bearing reliably abuts within the groove. A gap between the locking screw and the annular groove prevents interference between the rotating cover plate and the locking screw during rotation. A locking nut further secures the locking screw, preventing displacement after prolonged use and improving its fixation to the support base. A spring provides elastic force to the ball bearing, keeping it firmly within the limiting groove. An annular limiting protrusion prevents the ball bearing from detaching from the locking screw. The rotating cover plate has its own weight. During actual testing, the first slot on the rotating cover plate engages with the testing head. The operator can easily rotate the rotating cover plate using the handle. Because both the rotating cover plate and the testing head are under gravity, the lower end face of the testing head remains in contact with the limiting reference component. During actual testing, it is also necessary to avoid lifting the rotating cover plate using the handle; this ensures the testing head remains in contact with the limiting reference component at all times.

[0017] Compared with the prior art, the present invention has the following advantages: 1. By installing the detection head on the rotating cover plate, the detection head is driven to rotate synchronously when the rotating cover plate is rotated. When the detection head rotates in the snap ring groove of the detection part body, it can detect whether the detection part body is qualified. The detection adopts a pure mechanical structure, which is simple and reliable, convenient to detect, and highly operable; 2. A horizontal reference surface is set by a limiting reference component. The detection head is fitted on the limiting reference component and can rotate relative to the limiting reference component. Here, the upper end face of the limiting reference component and the bottom end face of the snap ring groove are on the same horizontal plane, so the size of the snap ring groove can be directly measured by the detection head; avoiding the direct measurement of the vertical height between the boss body and the snap ring groove, greatly simplifying the measurement process; at the same time, the measurement position is accurately positioned, and the detection head can be easily rotated. Because the snap ring grooves are spaced apart on the body of the inspection piece, the inspection efficiency is greatly improved by rotating the inspection head relative to the body of the inspection piece; 3. A gap is left between the rotating cover plate and the limiting reference piece to avoid mutual jamming between the rotating cover plate and the limiting reference piece, making the rotation of the inspection head driven by the rotating cover plate smoother and the inspection effect better; 4. The inspection head is limited by setting the first snap ring groove; the rotating cover plate and the inspection head are fixed by setting the limiting pin, so that the rotating cover plate and the inspection head can rotate synchronously and prevent the inspection head from disengaging from the first snap ring groove; 5. The rotating cover plate is limited by setting the positioning component, so that the rotating cover plate can rotate relative to the support base, thus preventing the rotating cover plate from disengaging from the support base; 6. The dimensions of the snap ring groove are judged by the principle of go gauge and no-go gauge, which makes the inspection efficient, convenient and reliable. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 for Figure 2 A magnified view of a portion of position A in the diagram; Figure 5 for Figure 3 Enlarged view of part B in the middle Figure 6 This is a front view of the hidden detection component body of the present invention; Figure 7 A three-dimensional view of the test component; Figure 8 A three-dimensional view of the rotating cover plate; Figure 9 A three-dimensional view of the limiting reference component; Figure 10 A 3D view of the supporting base; The markings in the diagram are: 1. Support base; 2. Limiting reference component; 21. Engaging protrusion; 22. Mounting hole; 3. Rotating cover plate; 31. First slot; 32. Vertical blind hole; 33. Annular slot; 4. Detection head; 41. Positioning hole; 5. Detection component body; 51. Boss body; 52. Engaging groove; 53. Snap ring groove; 6. Positioning assembly; 61. Ball bearing; 62. Locking screw; 63. Locking nut; 64. Spring; 65. Mounting groove; 66. Annular limiting protrusion; 7. Limiting pin; 8. Annular step; 9. Threaded hole; 10. Handle. Detailed Implementation

[0019] The present invention will be further described below with reference to the embodiments illustrated in the accompanying drawings: like Figures 1 to 10 As shown, this embodiment discloses a rapid detection tool for limiting the length of an outer hub boss, including a support base 1, a limiting reference component 2, and a rotating cover plate 3. The limiting reference component 2 and the rotating cover plate 3 are both sleeved on the support base 1, and the rotating cover plate 3 can rotate relative to the support base 1. A detection head 4 is provided between the limiting reference component 2 and the rotating cover plate 3. A detection component body 5 for detection is adapted and installed on the outer layer of the limiting reference component 2. A plurality of positioning components 6 for limiting rotation are provided between the support base 1 and the rotating cover plate 3. The positioning components 6 include ball bearings 61. A limiting pin 7 for fixing the two is provided between the detection head 4 and the rotating cover plate 3. A gap is provided between the upper end face of the limiting reference component 2 and the lower end face of the rotating cover plate 3.

[0020] The detection body 5 has several circumferentially distributed bosses 51, and the lower end face of the limiting reference 2 is placed horizontally on the bosses 51. The inner wall of the detection body 5 has several circumferentially distributed meshing grooves 52, and the outer ring of the limiting reference 2 has several circumferentially distributed meshing protrusions 21. The outer contours of the meshing grooves 52 and the meshing protrusions 21 are adapted to each other. During the detection process, the meshing protrusions 21 are placed in the meshing grooves 52. The inner wall of the detection body 5 also has a retaining spring groove 53, which is set higher than the bosses 51. During the detection process, the detection head 4 is placed in the retaining spring groove 53, and the thickness of the detection head 4 is adapted to the axial length of the retaining spring groove 53. The support base 1 is provided with an annular step 8 for placing the limiting reference component 2. The detection component body 5 is provided with several circumferentially distributed boss bodies 51. The lower end face of the limiting reference component 2 is simultaneously placed on the annular step 8 and the boss bodies 51. The center of the limiting reference component 2 is provided with a mounting hole 22. The main body of the support base 1 is set in the mounting hole 22. The outer contour of the mounting hole 22 is adapted to the outer contour of the support base 1, and the limiting reference component 2 is tightly connected to the support base 1. A rotating cover plate 3 is also sleeved on the outside of the support base 1. The outer contour of the rotating cover plate 3 is adapted to the outer contour of the support base 1. A detection head 4 is provided between the rotating cover plate 3 and the limiting reference member 2. The rotating cover plate 3 has a first slot 31 for installing the detection head 4, and the outer contour of the first slot 31 is adapted to the outer contour of the detection head 4. A retaining spring groove 53 is provided on the inner wall of the detection member body 5. The detection head 4 extends into the retaining spring groove 53, and a gap is left between the end of the detection head 4 and the inner wall of the retaining spring groove 53. The detection head 4 is tightly fitted in the first slot 31. When the detection head 4 is installed in the first slot 31, the end of the detection head 4 abuts against the outer wall of the support base 1. A limiting pin 7 is provided between the detection head 4 and the rotating cover plate 3 for fixing the two. The rotating cover plate 3 has a vertical blind hole 32 for installing the limiting pin 7. The axial length of the vertical blind hole 32 is greater than the axial length of the limiting pin 7. The limiting pin 7 is arranged adjacent to the limiting reference member 2. During the testing process, the testing head 4 includes a go gauge type testing head 4 and a no-go gauge type testing head 4; when performing go gauge testing, the first slot 31 is equipped with a go gauge type testing head 4, and when performing no-go gauge testing, the first slot 31 is equipped with a no-go gauge type testing head 4; the testing head 4 is provided with a positioning hole 41 for installing a limit pin 7, the limit pin 7 extends into the positioning hole 41, and the outer diameter of the limit pin 7 is adapted to the inner diameter of the positioning hole 41 and the inner diameter of the vertical blind hole 32 respectively.

[0021] A plurality of positioning components 6 for limiting rotation are provided between the support base 1 and the rotating cover plate 3. The positioning components 6 further include locking screws 62, locking nuts 63 and springs 64. The support base 1 is provided with threaded holes 9 for installing the positioning components 6, and the rotating cover plate 3 is provided with annular grooves 33 for limiting rotation. The positioning components 6 are positioned facing the annular grooves 33. The locking screw 62 is installed in the threaded hole 9 and threadedly connected to the support base 1; the head of the locking screw 62 is set towards the annular groove 33, and the locking screw 62 is provided with a mounting groove 65, in which a ball 61 and a spring 64 are provided; the open end of the locking screw 62 is provided with an annular limiting protrusion 66, the outer diameter of the annular limiting protrusion 66 is adapted to the diameter of the ball 61, and in the default state, the ball 61 is locked on the annular limiting protrusion 66 and the ball 61 protrudes outward on the locking screw 62; one end of the spring 64 abuts against the ball 61, and the other end of the spring 64 abuts against the inner wall of the mounting groove 65; the outer layer of the locking screw 62 is provided with a locking nut 63 threadedly connected to it, and in the default state, the locking nut 63 is set close to the inner wall of the support base 1. The rotating cover plate 3 has a vertical blind hole 32 for installing the limiting pin 7. The annular groove 33 is set higher than the vertical blind hole 32. The annular groove 33 and the vertical blind hole 32 are set perpendicular to each other. In the default state, the annular groove 33 and the limiting reference member 2 are set parallel to each other. The head of the locking screw 62 extends and is installed in the annular groove 33. A gap is left between the locking screw 62 and the upper or lower end face of the annular groove 33. The support base 1 has a handle 10 fixedly connected to it. The handle 10 is set parallel to the upper end face of the limiting reference member 2.

[0022] The specific operation process of this implementation is as follows: The test piece body 5 to be tested is placed horizontally on the worktable. The dimensions of the test piece body 5 and the worktable are compatible, thus fixing the test piece body 5 horizontally on the worktable. Here, the worktable is a positioning mold, not shown in the attached drawings of the instruction manual. The test head 4 is installed into the first slot 31, and the positioning hole 41 is aligned with the vertical blind hole 32. When installing the test head 4, the rotating cover plate 3 is first placed upside down, which makes it easier to install the test head 4 into the first slot 31. Here, the operator manually adjusts the position of the test head 4 to align the vertical blind hole 32 with the positioning hole 41. Then, the limiting pin 7 is installed into the positioning hole 41 and the vertical blind hole 32. The main function of the limiting pin 7 is to radially limit the test head 4, preventing the end of the test head 4 from fitting against the inner wall of the retaining spring groove 53. Then, the limiting reference piece 2 is tightly fitted onto the annular step 8 of the support base 1. Next, the rotating cover plate 3 is fitted onto the support base 1, so that the detection head 4 is fitted with the limiting reference piece 2. Then, the rotating cover plate 3 and the support base 1 are locked together by the positioning component 6. At this time, the rotating cover plate 3, the detection head 4 and the limiting reference piece 2 are fitted together in sequence. Since the detection head 4 is located between the rotating cover plate 3 and the limiting reference piece 2, the rotating cover plate 3 and the detection head 4 are limited by the first slot 31. When designing the detection head 4, the thickness of the detection head 4 needs to be adapted and adjusted. When the upper end face of the detection head 4 is fitted with the top end face of the first slot 31, there is a gap between the lower end face of the rotating cover plate 3 and the upper end face of the limiting reference piece 2. In this way, when the rotating cover plate 3 drives the detection head 4 to rotate, the rotating cover plate 3 and the support base 1 can rotate smoothly, avoiding the detection head 4 from getting stuck and affecting the detection results.

[0023] The testing component body 5 has a boss body 51 and a snap ring groove 53. The operator needs to test the vertical height from the upper end face of the boss body 51 to the top inner wall of the snap ring groove 53. Here, the limiting reference component 2 is placed on the boss body 51, and the engaging protrusion 21 on the limiting reference component 2 is aligned with the engaging groove 52 on the testing component body 5. This allows the support base 1 and the rotating cover plate 3 to be installed as a whole on the testing component body 5, while also preventing the limiting reference component 2 from rotating. When the limiting reference component 2 is placed on the boss body 51, the upper end face of the limiting reference component 2 is flush with the bottom end face of the snap ring groove 53. Then, the testing head 4 is used to simulate the mechanical standard snap ring. By rotating the testing head 4, it is determined whether the vertical height of the snap ring groove 53 is qualified. In actual testing, the principles of go gauges and no-go gauges in mechanical inspection are applied. Therefore, two sets of inspection heads 4 are required for each test: one set is a go gauge type inspection head 4 used to test the minimum difference limit of the circlip groove 53, and the other set is a no-go gauge type inspection head 4 used to test the maximum difference limit of the circlip groove 53. When using the go gauge type inspection head 4, rotating the cover plate 3 to drive the go gauge type inspection head 4 to rotate multiple times, if the cover plate 3 can rotate smoothly each time without jamming, it indicates that the vertical height of the circlip groove 53 is not lower than the thickness of the inspection head 4, and the go gauge test of the circlip groove 53 is qualified; otherwise, the test is unqualified. When using the no-go gauge type inspection head 4, rotating the cover plate 3 to drive the no-go gauge type inspection head 4 to rotate, if rotating the cover plate 3 can drive the inspection head 4 to rotate more than one revolution, it indicates that the height of the circlip groove 53 is too high and does not meet the test requirements; if rotating the cover plate 3 cannot rotate, it indicates that the maximum height of the circlip groove 53 is not greater than the thickness of the inspection head 4, and the test is qualified.

[0024] The rotating cover plate 3 is radially limited by the support base 1 and the positioning component 6, ensuring better concentricity during rotation and preventing interference between the detection head 4 and the retaining groove 53 of the detection piece body 5, thus improving detection accuracy. The locking screw 62 adjusts the distance between the ball 61 and the annular groove 33, ensuring the ball 61 reliably abuts against the groove. A gap between the locking screw and the annular groove 33 prevents interference between the rotating cover plate 3 and the locking screw 62 during rotation. The locking nut 63 further locks the locking screw 62, preventing displacement after prolonged use and improving the fixation between the locking screw 62 and the support base 1. A spring 64 provides elastic force to the ball 61, ensuring it remains within the limiting groove. An annular limiting protrusion 66 prevents the ball 61 from detaching from the locking screw 62. The rotating cover plate 3 has its own weight. During actual testing, the first slot 31 on the rotating cover plate 3 is in contact with the detection head 4. The operator can easily rotate the rotating cover plate 3 using the handle 10. When rotating the rotating cover plate 3, both the rotating cover plate 3 and the detection head 4 have gravity, which ensures that the lower end face of the detection head 4 is always in contact with the limiting reference piece 2. During actual testing, it is also necessary to avoid lifting the rotating cover plate 3 using the handle 10, so that the detection head 4 can always be in contact with the limiting reference piece 2.

[0025] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A rapid detection tool for limiting the length of an outer hub boss, comprising a support base (1), a limiting reference member (2), and a rotating cover plate (3), characterized in that, The limiting reference component (2) and the rotating cover plate (3) are both sleeved on the support base (1), and the rotating cover plate (3) can rotate relative to the support base (1); a detection head (4) is provided between the limiting reference component (2) and the rotating cover plate (3), and a detection component body (5) for detection is adapted to be installed on the outer layer of the limiting reference component (2); a number of positioning components (6) for limiting rotation are provided between the support base (1) and the rotating cover plate (3), and the positioning components (6) include ball bearings (61); a limiting pin (7) for fixing the two is provided between the detection head (4) and the rotating cover plate (3), and a gap is provided between the upper end face of the limiting reference component (2) and the lower end face of the rotating cover plate (3).

2. The rapid detection tool for limiting the length of the outer hub boss according to claim 1, characterized in that, The detection body (5) is provided with several circumferentially distributed boss bodies (51), and the lower end face of the limiting reference (2) is placed horizontally on the boss bodies (51); the inner wall of the detection body (5) is provided with several circumferentially distributed meshing grooves (52), and the outer ring of the limiting reference (2) is provided with several circumferentially distributed meshing protrusions (21); the outer contours of the meshing grooves (52) and the meshing protrusions (21) are adapted to each other, and the meshing protrusions (21) are set in the meshing grooves (52) during the detection process; the inner wall of the detection body (5) is also provided with a snap ring groove (53), and the snap ring groove (53) is set higher than the boss bodies (51); during the detection process, the detection head (4) is set in the snap ring groove (53), and the thickness of the detection head (4) is adapted to the axial length of the snap ring groove (53).

3. The rapid detection tool for limiting the length of the outer hub boss according to claim 1, characterized in that, The support base (1) is provided with an annular step (8) for placing the limiting reference piece (2), and the detection piece body (5) is provided with several circumferentially distributed boss bodies (51). The lower end face of the limiting reference piece (2) is simultaneously placed on the annular step (8) and the boss bodies (51). The center of the limiting reference piece (2) is provided with a mounting hole (22), and the main body of the support base (1) is set in the mounting hole (22). The outer contour of the mounting hole (22) is adapted to the outer contour of the support base (1), and the limiting reference piece (2) is tightly connected to the support base (1). A rotating cover plate (3) is also sleeved on the outside of the support base (1), and the outer contour of the rotating cover plate (3) is adapted to the outer contour of the support base (1).

4. The rapid detection tool for limiting the length of the outer hub boss according to claim 3, characterized in that, A detection head (4) is provided between the rotating cover plate (3) and the limiting reference member (2). The rotating cover plate (3) has a first slot (31) for installing the detection head (4). The outer contour of the first slot (31) is adapted to the outer contour of the detection head (4). A retaining groove (53) is provided on the inner wall of the detection member body (5). The detection head (4) extends into the retaining groove (53). A gap is left between the end of the detection head (4) and the inner wall of the retaining groove (53).

5. The rapid detection tool for limiting the length of the outer hub boss according to claim 4, characterized in that, The detection head (4) is tightly fitted in the first slot (31). When the detection head (4) is installed in the first slot (31), the end of the detection head (4) abuts against the outer wall of the support base (1). A limiting pin (7) for fixing the detection head (4) and the rotating cover plate (3) is provided. A vertical blind hole (32) for installing the limiting pin (7) is provided in the rotating cover plate (3). The axial length of the vertical blind hole (32) is greater than the axial length of the limiting pin (7). The limiting pin (7) is arranged adjacent to the limiting reference piece (2).

6. The rapid detection tool for limiting the length of the outer hub boss according to claim 4, characterized in that, During the testing process, the testing head (4) includes a go gauge type testing head (4) and a no-go gauge type testing head (4); when performing go gauge testing, a go gauge type testing head (4) is installed in the first slot (31), and when performing no-go gauge testing, a no-go gauge type testing head (4) is installed in the first slot (31); the testing head (4) is provided with a positioning hole (41) for installing a limit pin (7), the limit pin (7) extends into the positioning hole (41), and the outer diameter of the limit pin (7) is adapted to the inner diameter of the positioning hole (41) and the inner diameter of the vertical blind hole (32).

7. The rapid detection tool for limiting the length of the outer hub boss according to claim 1, characterized in that, A plurality of positioning components (6) for limiting rotation are provided between the support base (1) and the rotating cover plate (3). The positioning components (6) also include locking screws (62), locking nuts (63) and springs (64). The support base (1) is provided with threaded holes (9) for installing the positioning components (6). The rotating cover plate (3) is provided with an annular groove (33) for limiting rotation. The positioning components (6) are positioned facing the annular groove (33).

8. The rapid detection tool for limiting the length of the outer hub boss according to claim 7, characterized in that, The locking screw (62) is installed in the threaded hole (9) and threadedly connected to the support base (1); the head of the locking screw (62) is positioned facing the annular groove (33), and the locking screw (62) has a mounting groove (65) inside, in which a ball (61) and a spring (64) are provided; the open end of the locking screw (62) has an annular limiting protrusion (66), the outer diameter of which is the same as the diameter of the ball (61). Mutual adaptation, in the default state the ball (61) is locked on the annular limiting protrusion (66) and the ball (61) is protruding outward on the locking screw (62); one end of the spring (64) abuts against the ball (61) and the other end of the spring (64) abuts against the inner wall of the mounting groove (65); the outer layer of the locking screw (62) is provided with a locking nut (63) that is threadedly connected to it, in the default state the locking nut (63) is tightly attached to the inner wall of the support base (1).

9. The rapid detection tool for limiting the length of the outer hub boss according to claim 7, characterized in that: The rotating cover plate (3) is provided with a vertical blind hole (32) for installing the limiting pin (7), and the annular groove (33) is set higher than the vertical blind hole (32); the annular groove (33) and the vertical blind hole (32) are set perpendicular to each other, and in the default state, the annular groove (33) and the limiting reference piece (2) are set parallel to each other; the head of the locking screw (62) extends and is installed in the annular groove (33), and there is a gap between the locking screw (62) and the upper or lower end face of the annular groove (33).

10. The rapid detection tool for limiting the length of the outer hub boss according to claim 1, characterized in that, The support base (1) is provided with a handle (10) fixedly connected to it, and the handle (10) and the upper surface of the limiting reference member (2) are arranged parallel to each other.

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