Mandrel eccentricity detection device

Abstract

The utility model relates to the technical field of mandrel detection equipment, and discloses a mandrel eccentricity detection device which comprises a base, a T-shaped sliding rail is fixedly connected to the middle of the top end of the base, clamping mechanisms are arranged at the two ends of the T-shaped sliding rail, a stand column is connected to the rear side of the top end of the base in a threaded mode, a fixing assembly is arranged on the outer wall of the stand column, and the clamping mechanisms are arranged on the fixing assembly. The right side of the top end of the base is rotationally connected with a data collector, an adjusting assembly is arranged on the front side of the fixing assembly, a data collecting assembly is arranged on the front side of the adjusting assembly, and an adjusting and fixing mechanism is arranged on the outer side of the clamping mechanism. According to the utility model, the mandrel to be detected is clamped at the inner side of the V-shaped support, the V-shaped characteristic of the V-shaped support is utilized, mandrels with different sizes are clamped, the position of the moving rear side is fixed, and during detection, the mandrel is rotated to drive the roller to rotate, so that the mandrel can be conveniently detected.

Description

Technical Field

[0001] This utility model relates to the technical field of mandrel testing equipment, and in particular to a mandrel eccentricity testing device. Background Technology

[0002] In the fields of machining and precision manufacturing, spindle eccentricity detection is a key step in ensuring the quality of parts. Existing spindle eccentricity detection devices adopt a composite structure of "mechanical positioning + sensor detection". Typical solutions include adjustable V-shaped positioning blocks, rotary drive mechanisms and displacement sensor arrays. Through optimization of positioning accuracy, improvement of transmission stability and multi-sensor fusion technology, a relatively mature detection solution has been formed, which has achieved efficient quantitative detection of spindle eccentricity in the automotive and bearing industries.

[0003] A search revealed Chinese Patent Publication No. CN212843369U, which discloses a device for detecting the coaxiality of an eccentric sleeve on a bar mill mandrel. Belonging to the field of measuring instrument technology, this device is used to detect the coaxiality of the eccentric sleeve on a mandrel. The technical solution is as follows: two identical V-shaped seats are placed on a base plane; two eccentric sleeves are placed on the V-shaped openings of the two V-shaped seats respectively; two adjusting frames are placed on the base plane outside the two V-shaped seats respectively; two screw jacks are fixed to the adjusting frames; vertical sliding rods are fixed to both sides of each adjusting frame; and bearing seats are located above the two adjusting frames. The bearing seat has sliding holes at both ends that fit onto the sliding rods on both sides of the adjusting frame. The bottom surface of the bearing seat is supported by the top end of the screw jack. The two ends of the rotating shaft pass through the bearing inner holes in the two bearing seats, and the middle part of the rotating shaft passes through the inner holes of the two eccentric sleeves to be tested. This utility model has a simple structure and is easy to operate. It can directly measure the coaxiality deviation of the two eccentric sleeves, which improves the detection efficiency. However, in actual use, since the mandrels to be tested are of different sizes, it is not possible to make better adjustments when clamping mandrels that are too large or too small, which leads to the need to prepare additional testing devices of different specifications. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a mandrel eccentricity detection device, which aims to improve the problem in the prior art that it is not possible to make better adjustments when clamping mandrels that are too large or too small.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a spindle eccentricity detection device, comprising a base, a T-shaped slide rail fixedly connected to the middle of the top of the base, clamping mechanisms provided at both ends of the T-shaped slide rail, a column threadedly connected to the rear side of the top of the base, a fixing component provided on the outer wall of the column, a data collector rotatably connected to the right side of the top of the base, an adjustment component provided on the front side of the fixing component, a data acquisition component provided on the front side of the adjustment component, and an adjustment fixing mechanism provided on the outer side of the clamping mechanism;

[0006] The clamping mechanism includes two hollow moving blocks. The bottom ends of the two hollow moving blocks are slidably connected to the top left and right sides of the T-shaped slide rail, respectively. The inner wall of the hollow moving blocks is threaded with fixing bolts. Multiple V-shaped slots are opened on adjacent sides of the two hollow moving blocks. V-shaped brackets are provided on adjacent sides of the two hollow moving blocks. The outer wall of the V-shaped bracket engages with the inner wall of the V-shaped slot. Multiple rollers are rotatably connected to the inner wall of the V-shaped bracket.

[0007] The above technical solution involves placing the mandrel to be tested in two V-shaped brackets, rotating the fixing bolts to release the hollow moving blocks from the top of the T-shaped slide rail, pushing the hollow moving blocks on both sides to move, which in turn moves the V-shaped brackets above, clamping the mandrel to be tested inside the V-shaped brackets. After clamping, rotating the fixing bolts fixes the position of the moving blocks, thus completing the clamping and fixing of the mandrel. During testing, rotating the mandrel will drive the rollers to rotate, facilitating the testing of the mandrel.

[0008] As a further description of the above technical solution:

[0009] The adjustment and fixing mechanism includes two lead screws, which are respectively fixedly connected to the opposite side of the corresponding V-shaped bracket. Multiple limiting grooves are provided on the opposite side of the two hollow moving blocks. Limiting nuts are threaded to the outer wall of the lead screws. A locking plate is rotatably connected to the adjacent side of the two limiting nuts. A distance measuring component is slidably connected to the front side of the V-shaped bracket.

[0010] The above technical solution involves moving the V-shaped bracket to the required height, which will cause the lead screw to move above the hollow moving block, locking the locking plate into the corresponding limiting groove. Then, by rotating the limiting nut, the locking plate is firmly locked into the limiting groove, and the V-shaped bracket is pulled to lock firmly together with the V-shaped locking groove.

[0011] As a further description of the above technical solution:

[0012] The fixing component includes a U-shaped plate, the inner wall of which is disposed on the outer wall of the column. A fixing clamp is fixedly connected to the front side of the inner wall of the U-shaped plate, an adjusting bolt is threadedly connected to the rear side of the inner wall of the U-shaped plate, and a movable arc-shaped clamp is rotatably connected to the front end of the adjusting bolt. A limit strip is fixedly connected to the left side of the inner wall of the U-shaped plate, and a connecting column is fixedly connected to the front end of the U-shaped plate.

[0013] Through the above technical solution: the fixing component can fix the data acquisition component at the required height. After the U-shaped plate is moved above the column to the required height, by rotating the adjusting bolt, due to its threaded connection with the back of the U-shaped plate, the adjusting bolt drives the moving arc-shaped clamp to move together during the rotation, thereby cooperating with the fixing clamp to clamp on the outside of the column, thus completing the height fixation. The adjusting component can adjust the height of the data acquisition component and the column according to the size of the detected mandrel.

[0014] As a further description of the above technical solution:

[0015] The adjusting assembly includes a rotating ring, the left end of which is rotatably connected to the front end of the connecting post, the right side of which passes through the rotating ring and is threaded with a rotating nut, the top of which is slidably connected to a limiting ring, and the inner wall of which is slidably connected to a cylinder.

[0016] The above technical solution involves rotating the rotating nut to release it from the compression and fixation of the rotating ring, then rotating the rotating ring to change its angle in the vertical direction. After adjustment, rotating the rotating nut again to compress it against the rotating ring, thus completing the fixation.

[0017] As a further description of the above technical solution:

[0018] The data acquisition component includes a data acquisition table, the rear of which is rotatably connected to the front end of the cylinder. A zeroing knob is rotatably connected to the top of the data acquisition table, and a telescopic contact post is slidably connected to the bottom of the data acquisition table. A limiting nut is provided at the front end of the outer wall of the cylinder, and the left end of the outer wall of the limiting nut passes through the rear of the data acquisition table and is threadedly connected to the outer wall of the cylinder.

[0019] The above technical solution involves contacting the telescopic contact post on top of the data acquisition unit with the surface of the spindle and pressing it to retract a certain distance. Then, rotating the limiting nut fixes the data acquisition unit on top of the cylinder, ensuring that it does not move. Finally, rotating the zeroing knob resets the pointer on top of the data acquisition unit to zero, thus completing the preparation work before testing.

[0020] As a further description of the above technical solution:

[0021] The ranging component includes two sliding bars, the rear sides of which are slidably connected to the front sides of the corresponding V-shaped brackets. A pointer bar is fixedly connected to the front side of each sliding bar, and a scale is fixedly connected to the top front end of the base.

[0022] The above technical solution involves moving the slider to move the pointer bar, allowing it to better fit with the spindle. The cooperation between the pointer bar and the scale facilitates reading the spindle's dimensions.

[0023] As a further description of the above technical solution:

[0024] A limiting ring is fixedly connected to the top rear side of the base, and the inner wall size of the limiting ring is the same as the outer wall size of the column.

[0025] Through the above technical solution, the limiting ring can limit the horizontal displacement of the column, thereby ensuring a stable and reliable benchmark for the column's detection operation. At the same time, the consistent size design ensures that the column is accurately inserted into the limiting ring, playing a precise positioning role and preventing tilting when the column is threadedly connected to the base.

[0026] As a further description of the above technical solution:

[0027] The outer wall of the limiting strip is slidably connected to the left side of the movable arc-shaped clamp, and the inner wall of the fixed clamp and the connecting column are treated with anti-slip treatment.

[0028] Through the above technical solution: when operating the fixed component, the limiting strip will constrain the movement direction of the moving arc-shaped clamping plate to prevent it from deviating during movement, ensuring the accuracy and stability of the clamping action. In addition, the inner wall of the fixed clamping plate and the connecting column is treated with anti-slip treatment to increase the friction between the fixed clamping plate and the connecting column, ensuring that there will be no slippage when clamped with the column.

[0029] This utility model has the following beneficial effects:

[0030] 1. In this utility model, the mandrel to be tested is placed in two V-shaped brackets, and the hollow moving blocks on both sides are pushed to move, clamping the mandrel to be tested inside the V-shaped brackets. Utilizing the V-shaped characteristics of the V-shaped brackets, mandrels of different sizes can be clamped better. Rotating the fixing bolts fixes the position of the moving side. During testing, rotating the mandrel will drive the rollers to rotate, thus facilitating the testing of the mandrel.

[0031] 2. In this utility model, by moving the V-shaped bracket to the corresponding height, the lead screw moves above the hollow moving block. Then, the locking plate is engaged in the corresponding limiting groove, and the limiting nut is rotated to engage the locking plate in the limiting groove. At the same time, the V-shaped bracket is pulled to engage with the V-shaped locking groove. After the mandrel is clamped, the sliding bar is moved, which in turn drives the pointer bar to move. By utilizing the cooperation between the pointer bar and the scale, the height can be easily adjusted and the size of the mandrel can be read. Attached Figure Description

[0032] Figure 1 This is a perspective view of a spindle eccentricity detection device proposed in this utility model;

[0033] Figure 2 This is a front view of a spindle eccentricity detection device proposed in this utility model;

[0034] Figure 3 This is a side view of a spindle eccentricity detection device proposed in this utility model;

[0035] Figure 4 This is a schematic diagram of the structure of the hollow moving block of the mandrel eccentricity detection device proposed in this utility model;

[0036] Figure 5 This is a schematic diagram of the structure of the fixing component of the mandrel eccentricity detection device proposed in this utility model;

[0037] Figure 6 This is a schematic diagram of the data acquisition component of a spindle eccentricity detection device proposed in this utility model.

[0038] Legend:

[0039] 1. Base; 2. Clamping mechanism; 201. Hollow moving block; 202. Fixing bolt; 203. V-shaped groove; 204. V-shaped bracket; 205. Roller; 3. Adjustment and fixing mechanism; 301. Lead screw; 302. Limiting groove; 303. Clamping plate; 304. Limiting nut; 305. Distance measuring component; 3051. Sliding bar; 3052. Pointer bar; 3053. Scale; 4. T-shaped slide rail; 5. Column; 6. Fixing component; 601. U-shaped plate; 602. Fixed clamping plate; 603. Adjusting bolt; 604. Movable arc-shaped clamping plate; 605. Limiting strip; 606. Connecting column; 7. Data collector; 8. Data acquisition component; 801. Data acquisition table; 802. Zeroing knob; 803. Telescopic contact column; 804. Limiting nut; 9. Adjusting component; 901. Rotating ring; 902. Rotating nut; 903. Limiting ring; 904. Cylinder; 10. Limiting ring. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a mandrel eccentricity detection device, comprising a base 1, a T-shaped slide rail 4 fixedly connected to the middle of the top of the base 1, and clamping mechanisms 2 at both ends of the T-shaped slide rail 4 for easy clamping of the mandrel. A column 5 is threadedly connected to the rear of the top of the base 1, providing installation space for the subsequent data acquisition component 8 and adjustment component 9. A fixing component 6 is provided on the outer wall of the column 5, which facilitates fixing the data acquisition component 8 at the required height above the column 5. A data collector 7 is rotatably connected to the right side of the top of the base 1, which facilitates displaying the data collected by the data acquisition component 8. An adjustment component 9 is provided on the front side of the fixing component 6, which facilitates adjusting the angle of the data acquisition component 8 in the vertical direction. The data acquisition component 8 is provided on the front side of the adjustment component 9, which can collect the eccentricity of the mandrel. An adjustment and fixing mechanism 3 is provided on the side; the clamping mechanism 2 includes two hollow moving blocks 201. The bottom ends of the two hollow moving blocks 201 are slidably connected to the top left and right sides of the T-shaped slide rail 4, respectively. The inner wall front side of the hollow moving block 201 is threaded with a fixing bolt 202. The fixing bolt 202 is moved to release the fixing of the hollow moving block 201 to the top of the T-shaped slide rail 4. Multiple V-shaped slots 203 are opened on the adjacent side of the two hollow moving blocks 201. V-shaped brackets 204 are provided on the adjacent side of the two hollow moving blocks 201. Pushing the hollow moving blocks 201 on both sides to move will drive the V-shaped brackets 204 above to move, clamping the mandrel to be tested on the inner side of the V-shaped bracket 204. The outer wall of the V-shaped bracket 204 is engaged with the inner wall of the V-shaped slot 203. Multiple rollers 205 are rotatably connected to the inner wall of the V-shaped bracket 204. Rotating the mandrel will drive the rollers 205 to rotate, thereby facilitating the testing of the mandrel.

[0042] Specifically, during use, the mandrel to be tested is placed in the two V-shaped brackets 204. The fixing bolts 202 are rotated to release the fixation between the hollow moving block 201 and the upper part of the T-shaped slide rail 4. At this time, the hollow moving blocks 201 on both sides are pushed to move, thereby driving the upper V-shaped brackets 204 to move and clamp the mandrel to be tested inside the V-shaped brackets 204. After clamping is completed, the fixing bolts 202 are rotated to fix the position of the moving side, thereby completing the clamping and fixing of the mandrel. During testing, rotating the mandrel will drive the roller 205 to rotate, thus facilitating the testing of the mandrel.

[0043] Reference Figure 2 , Figure 3 and Figure 4 The adjusting and fixing mechanism 3 includes two lead screws 301, which are respectively fixedly connected to the opposite sides of the corresponding V-shaped brackets 204. Moving the V-shaped brackets 204 to the required height will cause the lead screws 301 to move above the hollow moving blocks 201. Multiple limiting grooves 302 are provided on the opposite sides of the two hollow moving blocks 201. Limiting nuts 304 are threaded onto the outer wall of the lead screws 301. A locking plate 303 is rotatably connected to each adjacent side of the two limiting nuts 304. The locking plate 303 is engaged in the corresponding limiting groove 302. Then, rotating the limiting nuts 304 firmly engages the locking plate 303 in the limiting groove 302. In step 2, the V-shaped bracket 204 and the V-shaped slot 203 are pulled together and locked in place. The front side of the V-shaped bracket 204 is slidably connected to the ranging component 305. The ranging component 305 includes two sliding bars 3051. The rear sides of the two sliding bars 3051 are slidably connected to the front side of the corresponding V-shaped bracket 204. The front side of the sliding bar 3051 is fixedly connected to the pointer bar 3052. The top front end of the base 1 is fixedly connected to the scale 3053. Moving the sliding bar 3051 will drive the pointer bar 3052 to move, so that it can better fit with the mandrel. Through the cooperation between the pointer bar 3052 and the scale 3053, the size of the mandrel can be easily read.

[0044] Specifically, the V-shaped bracket 204 is moved to the required height, which will cause the lead screw 301 to move above the hollow moving block 201. Then, the locking plate 303 is locked into the corresponding limiting groove 302. Then, the limiting nut 304 is rotated to firmly lock the locking plate 303 into the limiting groove 302. At the same time, the V-shaped bracket 204 is pulled to firmly lock together with the V-shaped locking groove 203. After the mandrel is clamped, the sliding bar 3051 is moved, which in turn drives the pointer bar 3052 to move, so that it can better fit with the mandrel. Through the cooperation between the pointer bar 3052 and the scale 3053, the size of the mandrel can be easily read.

[0045] Reference Figure 3 , Figure 5 and Figure 6 The fixing component 6 includes a U-shaped plate 601. The inner wall of the U-shaped plate 601 is set on the outer wall of the column 5. A fixing clamp 602 is fixedly connected to the front side of the inner wall of the U-shaped plate 601. An adjusting bolt 603 is threadedly connected to the rear side of the inner wall of the U-shaped plate 601. A movable arc-shaped clamp 604 is rotatably connected to the front end of the adjusting bolt 603. A limit strip 605 is fixedly connected to the left side of the inner wall of the U-shaped plate 601. A connecting post 606 is fixedly connected to the front end of the U-shaped plate 601. After moving the U-shaped plate 601 above the column 5 to the required height, the adjusting bolt 604 is rotated. 03. Due to its threaded connection with the rear side of the U-shaped plate 601, it causes the movable arc-shaped clamping plate 604 to move together during rotation, thereby cooperating with the fixed clamping plate 602 and clamping it on the outside of the column 5, thus completing the height fixation; the adjusting component 9 includes a rotating ring 901, the left end of which is rotatably connected to the front end of the connecting column 606, the right side of the connecting column 606 passes through the rotating ring 901 and is threadedly connected to a rotating nut 902, and the top of the rotating ring 901 is slidably connected to a limiting ring 903, the inner wall of the limiting ring 903 slidingly... A cylinder 904 is movably connected. Rotating the rotating nut 902 releases it from the compression fixation of the rotating ring 901. Then, rotating the rotating ring 901 changes its angle in the vertical direction. After adjustment, rotating the rotating nut 902 again presses it against the rotating ring 901 to complete the fixation. The data acquisition component 8 includes a data acquisition meter 801. The rear of the data acquisition meter 801 is rotatably connected to the front end of the cylinder 904. A zeroing knob 802 is rotatably connected to the top of the data acquisition meter 801, and a telescopic contact post 803 is slidably connected to the bottom of the data acquisition meter 801. A limiting nut 804 is provided at the front end of the outer wall of the cylinder 904. The left end of the outer wall of the limiting nut 804 passes through the rear side of the data acquisition meter 801 and is threadedly connected to the outer wall of the cylinder 904. The telescopic contact post 803 above the data acquisition meter 801 is brought into contact with the surface of the spindle and pressed to retract a certain distance. Then, the limiting nut 804 is rotated to fix the data acquisition meter 801 above the cylinder 904, thus ensuring that it will not move. Then, the zeroing knob 802 is rotated to return the pointer above the data acquisition meter 801 to zero, thus completing the preparation work before the test.

[0046] Specifically, the fixing component 6 can fix the data acquisition component 8 at the required height. After moving the U-shaped plate 601 above the column 5 to the required height, by rotating the adjusting bolt 603, due to its threaded connection with the rear side of the U-shaped plate 601, it causes the moving arc-shaped clamping plate 604 to move together during the rotation, thereby cooperating with the fixing clamping plate 602 and clamping it on the outside of the column 5, thus completing the height fixation. The adjusting component 9 can adjust the angle of contact between the data acquisition component 8 and the mandrel being detected according to the size of the mandrel. When it is necessary to adjust the angle, rotate the rotating nut 902 to make it contact the rotating ring 9. 01. Release the compression fixation, then rotate the rotating ring 901 to change its angle in the vertical direction. After adjustment, rotate the rotating nut 902 to press it against the rotating ring 901 to complete the fixation. At the same time, when using the data acquisition component 8, contact the telescopic contact post 803 above the data acquisition meter 801 with the surface of the spindle and press it to retract a certain distance. Then rotate the limiting nut 804 to fix the data acquisition meter 801 above the cylinder 904, thus ensuring that it will not move. Then rotate the zeroing knob 802 to return the pointer above the data acquisition meter 801 to zero, thus completing the preparation work before detection.

[0047] Reference Figure 1 , Figure 2 and Figure 5 A limiting ring 10 is fixedly connected to the top rear side of the base 1. The limiting ring 10 can limit the horizontal displacement of the column 5, so that the column 5 always remains vertical. The inner wall size of the limiting ring 10 is the same as the outer wall size of the column 5, ensuring that the column 5 is accurately inserted into the limiting ring 10, which plays a precise positioning role. The outer wall of the limiting strip 605 is slidably connected to the left side of the movable arc-shaped clamp 604. The limiting strip 605 will constrain the movement direction of the movable arc-shaped clamp 604 to prevent it from deviating during movement. The inner walls of the fixed clamp 602 and the connecting column 606 are treated with anti-slip treatment to increase the friction between the fixed clamp 602 and the connecting column 606.

[0048] Specifically, the limiting ring 10 restricts the horizontal displacement of the column 5, ensuring that the column 5 remains vertical. This provides a stable and reliable reference for the detection operation of the column 5, guaranteeing the stability of the overall structure of the detection device and the accuracy of the detection results. Simultaneously, this consistent size design ensures that the column 5 is precisely inserted into the limiting ring 10, providing accurate positioning and preventing tilting when the column 5 is threadedly connected to the base 1. Furthermore, when operating the fixing component 6, the limiting strip 605 constrains the movement direction of the moving arc-shaped clamp 604, preventing it from shifting during movement and ensuring the accuracy and stability of the clamping action. Additionally, the inner walls of the fixing clamp 602 and the connecting column 606 are treated with anti-slip material, increasing the friction between them and preventing slippage when clamped to the column 5.

[0049] Working principle: First, the mandrel to be tested is placed between two V-shaped brackets 204. The fixing bolt 202 is rotated to release the connection between the hollow moving block 201 and the T-shaped slide rail 4. At this time, the sides of the hollow moving block 201 are pushed, causing the upper V-shaped brackets 204 to move, clamping the mandrel to be tested inside the V-shaped brackets 204. After clamping, the fixing bolt 202 is rotated again to fix the moved side position, thus achieving stable clamping of the mandrel. Utilizing the V-shaped characteristics of the V-shaped brackets 204, mandrels of different sizes can be clamped more effectively. During the testing process, rotating the mandrel will cause the roller 205 to rotate accordingly, facilitating the inspection of the mandrel. The test is performed; by adjusting the fixing mechanism 3, the V-shaped bracket 204 can be adjusted to the required height. At this time, the guide screw 301 is moved above the hollow moving block 201. Then, the locking plate 303 is inserted into the corresponding limiting groove 302. Then, the limiting nut 304 is rotated to ensure that the locking plate 303 is firmly locked in the limiting groove 302. At the same time, it is ensured that the V-shaped bracket 204 and the V-shaped locking groove 203 are tightly engaged. After clamping the mandrel, the sliding bar 3051 is moved, which in turn drives the pointer bar 3052 to move so as to better fit the mandrel. Through the cooperation of the pointer bar 3052 and the scale 3053, it is easy to read the size of the mandrel.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mandrel eccentricity detection device comprising a base (1), characterized in that: The top middle of the base (1) is fixedly connected with a T-shaped slide rail (4), both ends of the T-shaped slide rail (4) are provided with clamping mechanisms (2), the top rear side of the base (1) is screwedly connected with a stand (5), the outer wall of the stand (5) is provided with a fixing assembly (6), the top right side of the base (1) is rotatably connected with a data collection instrument (7), the front side of the fixing assembly (6) is provided with an adjusting assembly (9), the front side of the adjusting assembly (9) is provided with a data acquisition assembly (8), and the outer side of the clamping mechanism (2) is provided with an adjusting and fixing mechanism (3). The clamping mechanism (2) comprises two hollow moving blocks (201), the bottom ends of the two hollow moving blocks (201) are slidably connected to the top left and right sides of the T-shaped slide rail (4), the inner wall of the hollow moving block (201) is screwedly connected with a fixing bolt (202), a plurality of V-shaped clamping grooves (203) are formed in the adjacent side of the two hollow moving blocks (201), the adjacent side of the two hollow moving blocks (201) is provided with a V-shaped support (204), the outer wall of the V-shaped support (204) is clamped with the inner wall of the V-shaped clamping groove (203), and the inner wall of the V-shaped support (204) is rotatably connected with a plurality of rollers (205).

2. The eccentricity detection device of claim 1, wherein: The adjusting and fixing mechanism (3) comprises two lead screws (301), the two lead screws (301) are fixedly connected to the sides away from each other of the corresponding V-shaped supports (204), a plurality of limiting grooves (302) are formed in the sides away from each other of the two hollow moving blocks (201), the outer wall of the lead screw (301) is screwedly connected with a limiting nut (304), the adjacent side of the two limiting nuts (304) is rotatably connected with a clamping block plate (303), and the front side of the V-shaped support (204) is slidably connected with a distance measuring assembly (305).

3. The eccentricity detection device of claim 1, wherein: The fixing assembly (6) comprises a U-shaped plate (601), the inner wall of the U-shaped plate (601) is arranged on the outer wall of the stand (5), the inner wall of the U-shaped plate (601) is fixedly connected with a fixing clamping plate (602), the inner wall of the U-shaped plate (601) is screwedly connected with an adjusting bolt (603), the front end of the adjusting bolt (603) is rotatably connected with a movable arc-shaped clamping plate (604), the left side of the inner wall of the U-shaped plate (601) is fixedly connected with a limiting strip (605), and the front end of the U-shaped plate (601) is fixedly connected with a connecting column (606).

4. The eccentricity detection device of claim 3, wherein: The adjusting assembly (9) comprises a rotating ring (901), the left end of the rotating ring (901) is rotatably connected to the front end of the connecting column (606), the right side of the connecting column (606) penetrates the rotating ring (901) and is screwedly connected with a rotating nut (902), the top of the rotating ring (901) is slidably connected with a limiting ring (903), and the inner wall of the limiting ring (903) is slidably connected with a cylinder (904).

5. A mandrel eccentricity detection device according to claim 4, wherein: The data acquisition component (8) comprises a data acquisition table (801), the rear side of the data acquisition table (801) is rotationally connected to the front end of the cylinder (904), the top of the data acquisition table (801) is rotationally connected with a zero reset knob (802), the bottom of the data acquisition table (801) is slidingly connected with a telescopic touch column (803), the outer wall of the front end of the cylinder (904) is provided with a limiting nut (804), the outer wall of the left end of the limiting nut (804) penetrates the rear side of the data acquisition table (801) and is threadedly connected with the outer wall of the cylinder (904).

6. The eccentricity detection device of claim 2, wherein: The distance measuring component (305) comprises two sliding bars (3051), the rear sides of the two sliding bars (3051) are slidingly connected to the front sides of the corresponding V-shaped supports (204) respectively, the front side of the sliding bar (3051) is fixedly connected with a pointer bar (3052), the top front end of the base (1) is fixedly connected with a scale (3053).

7. The eccentricity detection device of claim 1, wherein: The rear side of the top of the base (1) is fixedly connected with a limiting ring (10), the inner wall of the limiting ring (10) is consistent with the size of the outer wall of the stand column (5).

8. The eccentricity detection device of claim 3, wherein: The outer wall of the limiting strip (605) is slidingly connected with the left side of the movable arc-shaped clamping plate (604), the fixed clamping plate (602) and the inner wall of the connecting column (606) are treated to prevent slipping.

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