Device for detecting torsion angle deviation of blind holes in two end faces of revolving body

Abstract

The utility model provides a device for detecting torsional angle deviation of blind holes in two end faces of a revolving body, which belongs to the field of devices for detecting torsional angle deviation of blind holes in inner side faces of two ends of the revolving body, and comprises a first template, a support cylinder, a second template, a plurality of first threaded pin rods and a plurality of unthreaded hole pin rods, a plurality of first through holes corresponding to the threaded blind holes are formed in the first template; one end of the supporting cylinder is connected with the first template; the second template is connected with the other end of the supporting cylinder and matched with the outer side face of the second end face, and a plurality of second through holes corresponding to the unthreaded blind holes are formed in the second template; the plurality of first threaded pin rods are inserted into the threaded blind holes through the first through holes and are fastened; each unthreaded hole pin rod is inserted into the corresponding second through hole and the corresponding unthreaded hole blind hole. The problem that in the prior art, the detection requirement that the end faces of the rotary body are blind holes cannot be met is solved.

Description

Technical Field

[0001] This utility model belongs to the field of inspection devices, and in particular relates to a detection device for the torsion angle deviation of blind holes on both ends of a rotating body. Background Technology

[0002] Currently, most methods for detecting the torsion angle deviation of blind holes on the end face of rotating bodies rely on coordinate measuring machines (CMMs). However, this method requires first selecting a measurement reference, then measuring the diameter and position of the blind holes on the end face, and finally manually calculating the relative torsion angle deviation of the corresponding blind holes on the end face. On the one hand, this method is complex, time-consuming, and inefficient, making it unsuitable for batch testing. On the other hand, for some taller rotating bodies, since both end faces are blind holes, the probe length is insufficient to measure the height of the other end face, making CMM measurement impossible.

[0003] It is evident that the coordinate measuring machine (CMM) method cannot meet the inspection requirements for all blind holes on the end faces of rotating bodies, and it also suffers from technical problems such as complex inspection process, long inspection time, low inspection efficiency, low pass rate, and inability to perform batch inspection. Utility Model Content

[0004] Details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects and advantages of the present application more readily apparent.

[0005] This invention proposes a detection device for the torsion angle deviation of blind holes on both ends of a rotating body. It solves the technical problems of existing technologies, such as the inability of the three-coordinate measurement method to meet the detection requirements that all ends of a rotating body are blind holes, the complexity of the detection process, the long detection time, the low detection efficiency, the low pass rate, and the inability to perform batch detection. It features high detection accuracy, fast speed, high efficiency, simple operation, high pass rate, and the ability to meet batch detection requirements, ensuring the smooth progress of batch production tasks.

[0006] This utility model discloses a detection device for the torsion angle deviation of blind holes on both ends of a rotating body. The end faces of the rotating body include a first end face and a second end face. The inner surface of the first end face has multiple threaded blind holes, and the outer surface of the second end face has multiple smooth blind holes. The detection device includes a first template, a support cylinder, a second template, multiple first threaded pins, and multiple smooth pins. The first template mates with the inner surface of the first end face and has multiple first through holes corresponding to the threaded blind holes. One end of the support cylinder is connected to the first template; the second template is connected to the other end of the support cylinder and mates with the outer surface of the second end face. The second template is provided with a plurality of second through holes corresponding to the blind holes; a plurality of first threaded pins are used to be inserted into the blind holes through the first through holes and fastened; each of the blind holes is inserted into the corresponding second through hole and the blind hole; wherein, the first template is inserted from the second end face and engages with the inner side of the first end face, the second template engages with the outer side of the second end face, and after the first through hole and the blind hole are aligned and fastened by the first threaded pins, if the blind hole pin can be inserted into a corresponding second through hole and a blind hole, the torsion angle deviation between the blind hole and the plurality of blind holes is qualified.

[0007] In some embodiments, the inner surface of the first end face is provided with a plurality of reference threaded holes, and the first template is provided with a plurality of reference through holes corresponding to the reference threaded holes.

[0008] In some embodiments, the detection device for the torsion angle deviation of the blind holes on both ends of the rotating body further includes a plurality of second threaded pins for insertion into the reference threaded hole through the reference through hole and for fastening.

[0009] In some embodiments, the first template is provided with four third through holes, which are evenly distributed along the circumferential surface of the first template. The first threaded pin passes through the third through hole from the outer side of the first end face and is inserted into the first through hole and the threaded blind hole. The second threaded pin passes through the third through hole from the outer side of the first end face and is inserted into the reference through hole and the reference threaded hole.

[0010] In some embodiments, the detection device for the torsion angle deviation of the blind holes on both ends of the rotating body further includes a plurality of first fixed drill sleeves, which are respectively disposed in a plurality of first through holes. The outer diameter of the first fixed drill sleeve is the same as the inner diameter of the first through hole. The first threaded pin includes a first smooth part and a first threaded part: the inner diameter of the first fixed drill sleeve is the same as the outer diameter of the first smooth part, the outer diameter of the first threaded part is smaller than the inner diameter of the first fixed drill sleeve, and the first threaded part mates with the threaded blind hole.

[0011] In some embodiments, the detection device for the torsion angle deviation of the blind holes on both ends of the rotating body further includes a plurality of second fixed drill sleeves, which are respectively disposed in a plurality of second through holes. The outer diameter of the second fixed drill sleeve is the same as the inner diameter of the second through hole, the inner diameter of the second fixed drill sleeve is the same as the outer diameter of the light hole pin, and the outer diameter of the light hole pin is the same as the inner diameter of the light hole blind hole.

[0012] In some embodiments, the detection device for the torsion angle deviation of the blind holes on both ends of the rotating body further includes multiple reference fixed drill sleeves, which are respectively disposed in multiple reference through holes. The outer diameter of the reference fixed drill sleeve is the same as the inner diameter of the reference through hole. The second threaded pin includes a second smooth part and a second threaded part: the inner diameter of the reference fixed drill sleeve is the same as the outer diameter of the second smooth part, the outer diameter of the second threaded part is smaller than the inner diameter of the reference fixed drill sleeve, and the second threaded part mates with the reference threaded blind hole.

[0013] In some embodiments, the detection device for the torsion angle deviation of the blind holes on both ends of the rotating body further includes multiple support plates, which are evenly distributed along the circumferential direction of the support cylinder. One end of each support plate is connected to the first template, and the other end of each support plate is connected to the second template.

[0014] In some embodiments, the support plate is provided with multiple weight-reduction holes.

[0015] In some embodiments, the detection device for the torsion angle deviation of the blind holes on both ends of the rotating body further includes a plurality of eye bolts, and the second template is provided with a plurality of threaded holes, wherein the plurality of eye bolts cooperate with the plurality of threaded holes.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model discloses a detection device for the torsion angle deviation of blind holes on both ends of a rotating body. By setting a first template, a support cylinder and a second template to cooperate with each other, and using a first threaded pin and a smooth hole pin to detect threaded blind holes and smooth hole blind holes, the device achieves efficient detection of the torsion angle deviation of blind holes on both ends of a rotating body, ensuring the accuracy and reliability of the detection results.

[0018] 2. This utility model ensures the alignment of threaded blind holes and smooth blind holes through the precise fit between the first template and the first end face, and the precise fit between the second template and the second end face. Simultaneously, the insertion and engagement of the first threaded pin and the smooth hole pin allows for rapid identification and detection of torsion deviations, ensuring the accuracy of the inspection. This design reduces errors caused by manual measurement, making the inspection results more reliable.

[0019] 3. This utility model has a simple structure and is easy to use. The first template and the second template are connected by a support cylinder, making the entire testing process integrated. The testing personnel only need to follow the operating steps to insert the first threaded pin into the corresponding threaded blind hole and the smooth hole pin into the corresponding smooth hole blind hole to complete the test. There are no complicated operating steps, which greatly improves the operating efficiency and reduces the operating difficulty. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0021] Figure 1 A schematic diagram of the structure of the detection device for the torsion angle deviation of the blind holes on both ends of the rotating body provided in this embodiment of the utility model;

[0022] Figure 2 Another structural schematic diagram of the detection device for the torsion angle deviation of the blind holes on both ends of the rotating body provided in this embodiment of the utility model;

[0023] Figure 3 A schematic diagram of the structure of the detection device and the rotating body after assembly provided in this embodiment of the utility model;

[0024] Figure 4 Another structural schematic diagram of the detection device and the rotating body provided in this embodiment of the utility model;

[0025] Figure 5 Another structural schematic diagram of the detection device and the rotating body provided in this embodiment of the utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the rotating body provided in the embodiment of this utility model;

[0027] Figure 7 This is another structural schematic diagram of the rotating body provided in an embodiment of the present utility model;

[0028] In the above figures:

[0029] 1-Rotating body; 101-First end face; 102-Second end face; 103-Threaded blind hole; 104-Reference threaded hole; 105-Blind hole; 2-First template; 201-First through hole; 202-Reference through hole; 203-Third through hole; 3-Second template; 301-Second through hole; 302-Threaded hole; 4-Support cylinder; 5-First threaded pin; 6-Blind pin; 7-Second threaded pin; 8-First fixed drill sleeve; 9-Second fixed drill sleeve; 10-Reference fixed drill sleeve; 11-Support plate; 1101-Weight reduction hole; 12-Eye ring screw. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described and explained below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments provided by this utility model without inventive effort are within the scope of protection of this utility model.

[0031] This utility model embodiment provides a detection device for inspecting the torsion angle deviation of blind holes on both ends of a rotating body, referencing... Figures 1-7As shown, the end face of the rotating body 1 includes a first end face 101 and a second end face 102. The inner surface of the first end face 101 is provided with multiple threaded blind holes 103, and the outer surface of the second end face 102 is provided with multiple smooth blind holes 105. The detection device includes a first template 2, a support cylinder 4, a second template 3, multiple first threaded pins 5, and multiple smooth pins 6. The first template 2 mates with the inner surface of the first end face 101, and the first template 2 is provided with multiple first through holes 201 corresponding to the threaded blind holes 103. One end of the support cylinder 4 is connected to the first template 2; the second template 3 is connected to the other end of the support cylinder 4 and mates with the outer surface of the second end face 102. The second template 3 is provided with... Multiple second through holes 301 corresponding to the blind holes 105; multiple first threaded pins 5 are used to be inserted into the threaded blind holes 103 through the first through holes 201 and tightened; each blind hole pin 6 is inserted into the corresponding second through hole 301 and blind hole 105; wherein, the first template 2 is inserted from the second end face 102 and engages with the inner surface of the first end face 101, and the second template 3 engages with the outer surface of the second end face 102. After the first through hole 201 and threaded blind hole 103 are aligned and tightened by the first threaded pins 5, if the blind hole pin 6 can be inserted into the corresponding second through hole 301 and blind hole 105, the torsion angle deviation between the blind hole 105 and the multiple threaded blind holes 103 is qualified. This detection device can quickly and accurately detect the torsion angle deviation between the blind holes on both ends of the rotating body 1, improve detection efficiency, reduce operation steps, and ensure detection accuracy, thus helping to improve the efficiency of blind hole detection on both ends of the rotating body 1.

[0032] In some embodiments, the length of the support cylinder 4 and the dimensions of the first template 2 and the second template 3 can be adjusted according to the specifications of the rotating body 1 to accommodate rotating bodies 1 with different diameters and lengths. Furthermore, the dimensions of the aperture pin 6 can also be adjusted according to the diameter of the aperture blind hole 105 to ensure the accuracy of the detection.

[0033] Furthermore, the detection device for the torsion angle deviation of the blind holes on both ends of the rotating body 1 is provided with multiple reference threaded holes 104 on the inner surface of the first end face 101, and multiple reference through holes 202 are correspondingly provided on the first template 2. The reference threaded holes 104 and reference through holes 202 are used to provide additional fixing and calibration references. When the first template 2 is engaged with the first end face 101, the multiple reference through holes 202 can correspond to the reference threaded holes 104 and be fixed by corresponding fastening pins, further improving the stability of the connection between the first template 2 and the first end face 101, thereby ensuring the accuracy of the detection process. The setting of reference threaded holes 104 and reference through holes 202 improves the fixing reliability of the first template 2, reduces the risk of template displacement during the detection process, and thus improves the accuracy and consistency of the detection results.

[0034] In some embodiments, the number and position of the reference threaded holes 104 and the reference through holes 202 can be adjusted according to the specific structure of the rotating body 1. The size of the reference threaded holes 104 can also be optimized according to the specifications of the second threaded pin 7 used to ensure the best fixing effect.

[0035] Furthermore, the testing device also includes multiple second threaded pins 7, used to be inserted into the reference threaded hole 104 through the reference through hole 202 for fastening. The second threaded pins 7 provide additional fixing force, further improving the stability and alignment accuracy of the first template 2. This ensures that the first template 2 will not shift due to vibration or other external forces during testing, maintaining testing accuracy. The use of second threaded pins 7 further enhances the overall rigidity and reliability of the testing device, ensuring high-precision positioning during use and reducing the possibility of errors.

[0036] Furthermore, the first template 2 is provided with four third through holes 203, which are evenly distributed along the circumference of the first template 2. The first threaded pin 5 passes through the third through hole 203 through the outer side of the first end face 101 and is inserted into the first through hole 201 and the threaded blind hole 103. The second threaded pin 7 passes through the third through hole 203 through the outer side of the first end face 101 and is inserted into the reference through hole 202 and the reference threaded hole 104. By providing the third through hole 203 on the first template 2, the threaded blind hole 103 on the inner side of the first end face 101 can be effectively inserted into the first threaded pin 5.

[0037] Furthermore, the detection device also includes multiple first fixed drill sleeves 8, each disposed within multiple first through holes 201. The outer diameter of the first fixed drill sleeve 8 is the same as the inner diameter of the first through hole 201. The first threaded pin 5 includes a first smooth portion and a first threaded portion: the inner diameter of the first fixed drill sleeve 8 is the same as the outer diameter of the first smooth portion, and the outer diameter of the first threaded portion is smaller than the inner diameter of the first fixed drill sleeve 8. The first threaded portion mates with the threaded blind hole 103. The first fixed drill sleeve 8 is inserted into the first through hole 201, and its function is to provide a more stable and precise guide for the first threaded pin 5. The first threaded pin 5 consists of a smooth portion and a threaded portion. The smooth portion enters through the first fixed drill sleeve 8, ensuring that the pin 5 maintains an accurate alignment position before entering the threaded blind hole 103. The threaded portion mates with the threaded blind hole 103 to achieve a tight fit. Through this structural design, the offset or shaking of the first threaded pin 5 during insertion can be effectively reduced, improving detection accuracy. The use of the first fixed drill sleeve 8 improves the stability and accuracy of the first threaded pin 5 during insertion, avoids possible deviations during insertion, and ensures the reliability of the detection device and the consistency of the detection results.

[0038] Furthermore, the detection device also includes multiple second fixed drill sleeves 9, each disposed within multiple second through holes 301. The outer diameter of the second fixed drill sleeve 9 is the same as the inner diameter of the second through hole 301, the inner diameter of the second fixed drill sleeve 9 is the same as the outer diameter of the through hole pin 6, and the outer diameter of the through hole pin 6 is the same as the inner diameter of the through hole blind hole 105. The second fixed drill sleeves 9 are disposed within the second through holes 301 to guide the through hole pin 6 to accurately insert into the through hole blind hole 105. Since the outer diameter of the through hole pin 6 is the same as the inner diameter of the through hole blind hole 105, precise alignment and insertion of the pin 6 are ensured, thereby enabling more accurate detection of the torsion angle deviation between the through hole blind hole 105 and the threaded blind hole 103. This structural design improves the accuracy and reliability of the detection device by reducing the wobble or offset of the pin 6. The placement of the second fixed drill sleeves 9 greatly improves the stability and accuracy of the through hole pin 6 during the detection process, ensuring that the pin 6 can accurately align with and insert into the through hole blind hole 105, thereby guaranteeing the accuracy and consistency of the detection results.

[0039] Furthermore, the testing device also includes multiple reference fixing drill sleeves 10, each disposed within multiple reference through holes 202. The outer diameter of the reference fixing drill sleeve 10 is the same as the inner diameter of the reference through hole 202. The second threaded pin 7 includes a second smooth portion and a second threaded portion: the inner diameter of the reference fixing drill sleeve 10 is the same as the outer diameter of the second smooth portion, and the outer diameter of the second threaded portion is smaller than the inner diameter of the reference fixing drill sleeve 10. The second threaded portion mates with the reference threaded hole 104. The reference fixing drill sleeve 10 is used to enhance the insertion stability and accuracy of the reference threaded pin 7. After the reference fixing drill sleeve 10 is inserted into the reference through hole 202, the smooth portion of the second threaded pin 7 can be precisely guided by the drill sleeve 10, allowing the pin 7 to be stably inserted into the reference threaded hole 104. The threaded portion mates with the reference threaded hole 104, achieving a secure connection. This design ensures the alignment accuracy of the reference threaded pin 7 during installation, thereby improving the accuracy of the entire testing device. By using the reference fixed drill sleeve 10, the installation accuracy and stability of the second threaded pin 7 are enhanced, ensuring the reliability of the testing device and the accuracy of the testing results. Furthermore, the design of the reference fixed drill sleeve 10 simplifies the installation process of the pin 7 and improves testing efficiency.

[0040] Furthermore, the testing device also includes multiple support plates 11, which are evenly distributed along the circumference of the support cylinder 4. One end of each support plate 11 is connected to the first template 2, and the other end is connected to the second template 3. The multiple support plates 11, evenly distributed around the support cylinder 4, provide effective support for the first template 2 and the second template 3. These support plates 11 not only increase the structural rigidity of the entire testing device but also ensure that the distance between the first template 2 and the second template 3 remains stable during the testing process, preventing displacement or deformation due to external forces. This design can significantly improve the stability and accuracy of the testing device without increasing its volume.

[0041] Furthermore, the support plate 11 is provided with multiple weight-reducing holes 1101. The weight-reducing holes 1101 on the support plate 11 effectively reduce the overall weight of the testing device while maintaining the structural strength and rigidity of the support plate 11. The design of the weight-reducing holes 1101 not only reduces the material cost of the device but also makes the device easier to operate and carry. In addition, a reasonable design of the weight-reducing holes 1101 can prevent a decrease in the strength of the support plate 11 due to excessive weight reduction. The application of the weight-reducing holes 1101 effectively reduces the weight of the testing device, making it lighter and easier to operate and carry, while maintaining the necessary strength of the support plate 11, ensuring the stability and accuracy of the device during the testing process.

[0042] In some embodiments, the shape, number, and distribution of the weight-reducing holes 1101 can be optimized according to the material and structural characteristics of the support plate 11 to achieve the best weight-reduction effect without affecting the stability of the device.

[0043] Furthermore, the testing device also includes multiple eye bolts 12, and the second template 3 has multiple threaded holes 302, with the eye bolts 12 engaging with these holes. The eye bolts 12 are installed in the threaded holes 302 of the second template 3 for convenient suspension or movement of the device during transportation, installation, or disassembly. The design of the threaded holes 302 ensures that the eye bolts 12 are securely installed on the second template 3, while also allowing users to quickly install or remove them as needed. This design is particularly suitable for heavier or larger testing devices, ensuring ease of operation and movement during use. The eye bolts 12 greatly facilitate the movement, installation, and disassembly of the testing device, especially in situations requiring frequent handling or operation in confined spaces. In addition, the threaded holes 302 also make the installation and removal of the eye bolts 12 faster, improving the operational convenience of the device.

[0044] In some embodiments, the specifications of the eye bolt 12 can be selected according to the weight of the device and usage requirements, and high-strength steel can be selected as the material to increase the load-bearing capacity. The position and number of threaded holes 302 can also be adjusted according to the specific usage scenario to achieve the best lifting effect.

[0045] The detection method for the above-mentioned detection device for the torsion angle deviation of the blind holes on the inner surfaces at both ends of the rotating body in practical applications is as follows:

[0046] Inspection of the testing device: Check that the first template 2, the second template 3, the support cylinder 4, the threaded pin 5, the smooth hole pin 6, the fixed drill sleeve 8, the support plate 11, and the eye bolt 12 in the testing device are all correctly installed and undamaged.

[0047] Prepare rotating body 1: Prepare the rotating body 1 to be tested, ensure that the blind holes on the first end face 101 and the second end face 102 are clean and free of foreign objects, and place the first end face 101 of the rotating body 1 vertically downward and stable, with the second end face 102 upward.

[0048] Positioning the first template 2: After screwing the two eye bolts 12 into the threaded holes 302 of the second template 3 and tightening them, use a sling to pass through the holes of the eye bolts 12 and use a lifting device to assemble the inspection device from the second end face 102 downwards, so that the first template 2 mates with the inner side of the first end face 101, and ensures that the first through hole 201 on the first template 2 is initially aligned with the threaded blind hole 103 on the first end face 101.

[0049] Insert threaded pins 5: Insert multiple first threaded pins 5 through the first through hole 201, and rotate the first threaded pins 5 to secure them in the threaded blind hole 103, ensuring that the first template 2 and the inner side of the first end face 101 are tightly fitted. If a reference threaded hole 104 exists, insert the second threaded pin 7 simultaneously and tighten it.

[0050] Positioning the second template 3: At this time, the second template 3 mates with the outer side of the second end face 102. Adjust the position so that the second through hole 301 on the second template 3 is aligned with the light hole and blind hole 105 of the second end face 102.

[0051] Insert the aperture pin 6: Insert the aperture pin 6 through the second through hole 301, and insert the aperture pin 6 into the aperture blind hole 105 one by one. If the aperture pin 6 can be smoothly inserted into all the aperture blind holes 105, it means that the torsion angle deviation between the blind holes on the two end faces is within the allowable range, and the test is qualified.

[0052] Record the test results: Record the test results based on the insertion of the light hole pin 6, and determine whether the blind hole torsion angle deviation of the two ends of the rotating body 1 meets the requirements.

[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A device for detecting the torsion angle deviation of blind holes on both ends of a rotating body, characterized in that, The end face of the rotating body includes a first end face and a second end face. The inner surface of the first end face has multiple threaded blind holes, and the outer surface of the second end face has multiple open-hole blind holes. The detection device includes: The first template mates with the inner side of the first end face, and the first template is provided with a plurality of first through holes corresponding to the threaded blind holes; The support cylinder is connected at one end to the first template. The second template is connected to the other end of the support cylinder and mates with the outer surface of the second end face. The second template is provided with a plurality of second through holes corresponding to the light hole blind hole. Multiple first threaded pins are used to be inserted into the threaded blind hole through the first through hole and fastened. Multiple aperture pins, each of which is inserted into the corresponding second through hole and the aperture blind hole; Specifically, the first template is inserted from the second end face and engages with the inner side of the first end face, and the second template engages with the outer side of the second end face. After the first through hole and the threaded blind hole are aligned and fastened by the first threaded pin, if the light hole pin can be inserted into a corresponding second through hole and a light hole blind hole, the torsion angle deviation between the light hole blind hole and the multiple threaded blind holes is qualified.

2. The detection device for the torsion angle deviation of the blind holes on both ends of a rotating body according to claim 1, characterized in that, The inner surface of the first end face is provided with a plurality of reference threaded holes, and the first template is provided with a plurality of reference through holes corresponding to the reference threaded holes.

3. The detection device for the torsion angle deviation of the blind holes on both ends of a rotating body according to claim 2, characterized in that, It also includes a plurality of second threaded pins for insertion into the reference threaded hole through the reference through hole and for fastening.

4. The detection device for the torsion angle deviation of the blind holes on both ends of a rotating body according to claim 3, characterized in that, The first template has four third through holes, which are evenly distributed along the circumference of the first template. The first threaded pin passes through the third through hole from the outer side of the first end face and is inserted into the first through hole and the threaded blind hole. The second threaded pin passes through the third through hole from the outer side of the first end face and is inserted into the reference through hole and the reference threaded hole.

5. The detection device for the torsion angle deviation of the blind holes on both ends of a rotating body according to claim 1, characterized in that, It also includes a plurality of first fixed drill bushings, which are respectively disposed in a plurality of first through holes. The outer diameter of the first fixed drill bushing is the same as the inner diameter of the first through hole. The first threaded pin includes a first smooth part and a first threaded part: the inner diameter of the first fixed drill bushing is the same as the outer diameter of the first smooth part, the outer diameter of the first threaded part is smaller than the inner diameter of the first fixed drill bushing, and the first threaded part mates with the threaded blind hole.

6. The detection device for the torsion angle deviation of the blind holes on both ends of a rotating body according to claim 1, characterized in that, It also includes a plurality of second fixed drill sleeves, which are respectively disposed in a plurality of second through holes. The outer diameter of the second fixed drill sleeve is the same as the inner diameter of the second through hole, the inner diameter of the second fixed drill sleeve is the same as the outer diameter of the light hole pin, and the outer diameter of the light hole pin is the same as the inner diameter of the light hole blind hole.

7. The detection device for the torsion angle deviation of the blind holes on both ends of a rotating body according to claim 3, characterized in that, It also includes multiple reference fixed drill sleeves, which are respectively disposed in multiple reference through holes. The outer diameter of the reference fixed drill sleeve is the same as the inner diameter of the reference through hole. The second threaded pin includes a second smooth part and a second threaded part: the inner diameter of the reference fixed drill sleeve is the same as the outer diameter of the second smooth part, the outer diameter of the second threaded part is smaller than the inner diameter of the reference fixed drill sleeve, and the second threaded part mates with the reference threaded blind hole.

8. The detection device for the torsion angle deviation of the blind holes on both ends of a rotating body according to claim 1, characterized in that, It also includes multiple support plates, which are evenly distributed along the circumference of the support cylinder. One end of each support plate is connected to the first template, and the other end of each support plate is connected to the second template.

9. The detection device for the torsion angle deviation of the blind holes on both ends of a rotating body according to claim 8, characterized in that, The support plate is provided with multiple weight-reducing holes.

10. The detection device for the torsion angle deviation of the blind holes on both ends of a rotating body according to claim 1, characterized in that, It also includes multiple eye bolts, and the second template has multiple threaded holes, with the multiple eye bolts engaging with the multiple threaded holes.

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