Torque and torsional angle measuring device and method

Abstract

The invention discloses a torque and torsional angle measuring device and method, and belongs to the field of measuring devices.The torque and torsional angle measuring device comprises a test board and a spanner, a driving rod is rotationally connected to the outer surface of the upper end of the test board, a fixing sleeve is fixedly connected to the upper end of the driving rod, and a compensation assembly is arranged on the inner side of the fixing sleeve; the compensation assembly comprises a fixing rod fixedly connected with the upper end of the inner surface of the fixing sleeve, a movable sleeve is slidably connected to the outer surface of the fixing rod, a first mounting groove is formed in the outer surface of the movable sleeve, and a first pin shaft is fixedly connected to the inner surface of the first mounting groove. The compensation assembly is arranged, the sleeve is clamped and fixed through the extrusion plate, the influence of abrasion of the wrench on the positioning measurement precision can be reduced through displacement of the extrusion plate, the problem that a gap exists between the wrench and the measurement device is solved, the clamping stability of the wrench can be improved, and the measurement precision is improved. Meanwhile, the measurement precision of the torque of the wrench can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of measuring devices, and more specifically, to a torque and twist angle measuring device and method. Background Art

[0002] A torque wrench is an important torque tool, designed based on the bending principle of a beam, the bending principle of a torsion bar, and the compression principle of a helical spring. It has the characteristics of adjustable torque, high precision, and various types, and is widely used in fields such as automobile manufacturing and repair, aerospace, and mechanical manufacturing. To ensure the use accuracy of the torque wrench, it is necessary to regularly measure and calibrate the torque of the torque wrench; In the prior art, in order to improve the measurement and calibration accuracy of the torque wrench, a dedicated measuring device is usually used. For example, Chinese Patent Publication No. CN113390558B discloses an impact wrench accumulated torque on-line measurement and calibration device, which collects torque signals and rotation angle signals through a microcontroller to run an algorithm program, calculates and displays the accumulated angular displacement and accumulated torque, and then completes the measurement and calibration of the accumulated torque output by the controllable torque impact wrench; During the use of the existing wrench torque measuring device, although it can quickly measure the wrench torque, in the actual application process, due to the wear of the head of the torque wrench during long-term use, when measuring and calibrating, it is necessary to measure the head of the torque wrench. At this time, due to the wear of the wrench head, there will be a gap between it and the measuring device, which will not only affect the measurement stability of the wrench torque, but also cause slippage between the wrench and the measuring device, resulting in a large error in the torque measurement process and affecting the measurement accuracy. Summary of the Invention

[0003] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a torque and twist angle measuring device and method. By setting a compensation component, the sleeve is clamped and fixed by the pressing plate. By setting the compensation component, the displacement of the pressing plate can reduce the influence of wrench wear on the positioning measurement accuracy and reduce the problem of the gap between the wrench and the measuring device. It can not only improve the clamping stability of the wrench, but also effectively improve the measurement accuracy of the wrench torque.

[0004] To solve the above problems, the present invention adopts the following technical solutions.

[0005] A torque and twist angle measuring device includes a test bench and a wrench. The outer surface of the upper end of the test bench is rotatably connected with a driving rod, and a fixing sleeve is fixedly connected to the upper end of the driving rod. A compensation component is arranged inside the fixing sleeve; The compensation component includes a fixed rod fixedly connected to the upper end of the inner surface of the fixed sleeve. A movable sleeve is slidably connected to the outer surface of the fixed rod. An installation groove one is formed in the outer surface of the movable sleeve. A pin shaft one is fixedly connected to the inner surface of the installation groove one. A swing rod is rotatably connected to the outer surface of the pin shaft one. One end of the swing rod away from the pin shaft one is rotatably connected to a hinge part. The swing rod is hinged with a pressing plate through the hinge part. The lower outer surface of the pressing plate is slidably connected to the upper end of the inner surface of the fixed sleeve.

[0006] Further, the hinge part includes a pin shaft two rotatably connected to the swing rod. An installation groove two is formed in the outer surface of the pressing plate close to the fixed rod side. The pin shaft two is fixedly connected to the inner surface of the installation groove two. The number of the pressing plates and the swing rods are both several groups and are distributed in a circular array. A guiding groove is formed in the lower end of the inner surface of the fixed sleeve. A guiding block is slidably connected to the inner surface of the guiding groove. The upper outer surface of the guiding block is fixedly connected to the pressing plate.

[0007] Further, a sleeve is rotatably connected to the lower outer surface of the wrench. An extrusion component is arranged inside the sleeve. The extrusion component includes an installation sleeve fixedly connected to the lower outer surface of the wrench. A sliding groove is embedded in the lower outer surface of the installation sleeve. A piston plate is slidably connected to the inner surface of the sliding groove. An extrusion sleeve is fixedly connected to the lower outer surface of the piston plate.

[0008] Further, the lower end of the extrusion sleeve penetrates to the outside of the sliding groove. A spring one is fixedly connected to the upper outer surface of the piston plate. The extrusion sleeve is located directly above the movable sleeve. The piston plate is circular. A clamping plate for clamping the wrench is fixedly connected to the upper outer surface of the test bench. The clamping plate is arc-shaped.

[0009] Further, an expansion component is arranged inside the fixed sleeve. The expansion component includes a capsule one fixedly connected to the lower end of the inner surface of the fixed sleeve. The capsule one is circularly distributed outside the fixed rod. The upper outer surface of the capsule one is fixedly connected to the lower end of the movable sleeve. A telescopic tube is fixedly connected to the outer surface of the capsule one. A spring two is sleeved inside the capsule one.

[0010] Further, a storage groove is embedded in the side of the pressing plate away from the swing rod. A capsule two is fixedly connected to the inner surface of the storage groove. One end of the telescopic tube away from the capsule one is connected to the inside of the capsule two. A contact plate is slidably connected to the inner surface of the storage groove. The outer surface of the contact plate is fixedly connected to the capsule two. The number of the capsule two and the contact plate are both several groups and are correspondingly distributed with the pressing plate. A pressing groove is formed in the inner surface of the fixed sleeve. A movable plate is slidably connected to the inside of the pressing groove. The movable plate is arc-shaped and made of an elastic material.

[0011] Further, a cavity is embedded in the inner side of the test bench, and a test component is arranged inside the cavity. The test component includes a servo motor fixedly connected to the lower end of the inner surface of the cavity. The output end of the servo motor is fixedly connected with a torque sensor, and the upper end of the torque sensor is fixedly connected with a driving rod. An operation screen is arranged on the outer surface of the front end of the test bench.

[0012] Further, a retaining ring is fixedly connected to the outer surface of the upper end of the test bench outside the fixed sleeve. A measuring component is arranged inside the retaining ring. The measuring component includes a movable groove opened on the inner surface of the retaining ring. The movable groove is annular. A pointing plate one is fixedly connected to the outer surface of the fixed sleeve. A pointing plate two is slidably connected inside the movable groove. The pointing plate two is located above the pointing plate one.

[0013] Further, the number of the movable grooves and the pointing plates two is several groups and they are distributed in parallel up and down. A damping rotating shaft is fixedly connected to the outer surface of the pointing plate two. Paddles are symmetrically rotatably connected to the outer surface of the damping rotating shaft. A scale line one is opened on the inner surface of the retaining ring. A scale line two is opened on the outer surface of the upper end of the test bench inside the retaining ring.

[0014] A measuring method applicable to a torque and twist angle measuring device includes the following steps: S1: Before the test, the sleeve is clamped into the inside of the fixed sleeve, and the wrench body is clamped and fixed by the clamping plate. S2: When the sleeve is clamped, the mounting sleeve gradually moves downwards to drive the lower end of the extrusion sleeve to contact the upper end of the movable sleeve and drive the movable sleeve to move downwards synchronously, thereby driving the compensation component to start running. S3: The extrusion plate moves towards the side away from the fixed rod under the pushing action of the swing rod, and the sleeve is clamped and fixed by the extrusion plate. S4: The servo motor transmits the torque to the driving rod through the torque sensor, and the torque sensor can measure the rotational torque of the sleeve. S5: The contact plate is pushed out of the storage groove through the second bladder, so that the contact plate fits more tightly with the inner surface of the sleeve. S6: According to the positions of the pointing plate one and the pointing plate two, the twist angle of the wrench can be visually measured by comparing the scale line one and the scale line two.

[0015] Compared with the prior art, the advantages of the present invention are as follows: (1) In this solution, by setting the compensation component, the sleeve is clamped and fixed by the extrusion plate. By setting the compensation component, the displacement of the extrusion plate can reduce the influence of wrench wear on the positioning and measuring accuracy, and reduce the problem of the gap between the wrench and the measuring device. It can not only improve the clamping stability of the wrench, but also effectively improve the measuring accuracy of the wrench torque. (2) By setting the expansion component in this solution, the inflation of the second bladder can increase the friction between the contact plate and the sleeve. At the same time, by squeezing the sleeve with several groups of movable plates on the outside, the clamping stability of the sleeve and the wrench can be further improved, reducing the probability of slipping between the sleeve and the fixed sleeve, thereby helping to reduce the measurement error and improve the torque measurement accuracy. (3) By setting the measurement component in this solution, by setting several groups of second pointing plates, the number of rotations of the torsion angle can be counted. At the same time, according to the position of the second pointing plate, the torsion angle of the wrench can be measured by referring to the second scale line, thereby improving the convenience and functionality of the torsion angle measurement. Description of the Drawings

[0016] Figure 1 Schematic diagram of the overall structure of the present invention Figure 1 ; Figure 2 Top view of the overall structure of the present invention; Figure 3 Schematic diagram of the overall structure of the present invention Figure 2 ; Figure 4 Of the present invention Figure 2 Cross-sectional view taken along line A-A in Figure 5 Of the present invention Figure 2 Cross-sectional view taken along line B-B in Figure 6 Of the present invention Figure 5 Enlarged schematic view at C in Figure 7 Of the present invention Figure 3 Enlarged schematic view at D in Figure 8 Of the present invention Figure 4 Enlarged schematic view at E in Figure 9 Of the present invention Figure 4 Enlarged schematic view at F in Figure 10 Of the present invention Figure 5 Enlarged schematic view at G in

[0017] Explanation of the reference numerals in the drawings: 11. Test bench; 12. Operating screen; 13. Retaining ring; 14. First scale line; 15. Wrench; 16. Clamping plate; 17. Sleeve; 18. Fixed sleeve; 19. Driving rod; 20. Torque sensor; 21. Servo motor; 22. Mounting sleeve; 23. Chute; 24. First spring; 25. Extrusion sleeve; 26. Fixed rod; 27. Movable sleeve; 28. First mounting groove; 29. First pin shaft; 30. Swing rod; 31. Guide groove; 32. Guide block; 33. Extrusion plate; 34. Second mounting groove; 35. Second pin shaft; 36. First bladder; 37. Second spring; 38. Telescopic tube; 39. Second bladder; 40. Contact plate; 41. First pointing plate; 42. Damping rotating shaft; 43. Paddle; 44. Second scale line; 45. Movable groove; 46. Piston plate; 47. Extrusion groove; 48. Movable plate; 49. Storage groove; 50. Cavity; 51. Second pointing plate. Detailed implementation manners

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1 to 10 , a torque and twist angle measuring device, including a test bench 11 and a torque wrench 15. The upper outer surface of the test bench 11 is rotatably connected to a driving rod 19. The upper end of the driving rod 19 is fixedly connected to a fixed sleeve 18. A compensation component is arranged inside the fixed sleeve 18. The lower outer surface of the torque wrench 15 is rotatably connected to a sleeve 17; The compensation component includes a fixed rod 26 fixedly connected to the upper inner surface of the fixed sleeve 18. The outer surface of the fixed rod 26 is slidably connected to a movable sleeve 27. The outer surface of the movable sleeve 27 is provided with a first mounting groove 28. The inner surface of the first mounting groove 28 is fixedly connected to a first pin shaft 29. The outer surface of the first pin shaft 29 is rotatably connected to a swing rod 30. One end of the swing rod 30 away from the first pin shaft 29 is rotatably connected to a hinge part. The swing rod 30 is hinged to an extrusion plate 33 through the hinge part. The lower outer surface of the extrusion plate 33 is slidably connected to the upper inner surface of the fixed sleeve 18.

[0020] The hinge part includes a second pin shaft 35 rotatably connected to the swing rod 30. An installation groove two 34 is formed on the outer surface of the extrusion plate 33 near one side of the fixed rod 26. The second pin shaft 35 is fixedly connected to the inner surface of the installation groove two 34. The number of the extrusion plates 33 and the swing rods 30 is several groups and they are distributed in an annular array. A guiding groove 31 is formed in the lower end of the inner surface of the fixed sleeve 18. A guiding block 32 is slidably connected to the inner surface of the guiding groove 31. The upper outer surface of the guiding block 32 is fixedly connected to the extrusion plate 33.

[0021] By adopting the above technical solution, some parts need to accurately control the bolt tightening torque during the assembly process. At this time, a torque wrench 15 is usually used to apply an appropriate torque to the bolt to tighten it. After the torque wrench 15 is used for a period of time, it is necessary to detect and review the torque and twist angle of the torque wrench 15 to ensure the use accuracy of the torque wrench 15. When detecting the torque of the torque wrench 15, the sleeve 17 at the lower end of the torque wrench 15 is clamped and placed inside the fixed sleeve 18. The fixed sleeve 18 slidably supports the movable sleeve 27 through the fixed rod 26. During the downward movement of the sleeve 17, it drives the movable sleeve 27 to slide downward along the surface of the fixed rod 26. During the downward movement of the movable sleeve 27, one end of the swing rod 30 will be driven to move downward synchronously through the first pin shaft 29. The movable sleeve 27 fixedly supports the first pin shaft 29 through the installation groove one 28. As the movable sleeve 27 gradually moves downward, the swing rod 30 will gradually turn into a horizontal state. At this time, the swing rod 30 will push the extrusion plate 33 through the second pin shaft 35 and the installation groove two 34. The fixed sleeve 18 slides and guides the guiding block 32 through the guiding groove 31, so that the extrusion plate 33 can perform linear sliding. The inner surface of the sleeve 17 is hexagonal. Under the pushing action of the swing rod 30, the extrusion plate 33 will move away from the fixed rod 26. During the movement of the extrusion plate 33, it will be in close contact with the inner surface of the sleeve 17, so as to clamp and fix the sleeve 17 through the extrusion plate 33. By setting the compensation component, the displacement of the extrusion plate 33 can reduce the influence of the wear of the torque wrench 15 on the measurement accuracy and reduce the probability of gaps between the torque wrench 15 and the measuring device. It can not only improve the clamping stability of the torque wrench 15, but also effectively improve the measurement accuracy of the torque of the torque wrench 15.

[0022] As Figure 5 As shown in the figure, a cavity 50 is embedded in the inner side of the test bench 11. A test component is arranged inside the cavity 50. The test component includes a servo motor 21 fixedly connected to the lower end of the inner surface of the cavity 50. The output end of the servo motor 21 is fixedly connected to a torque sensor 20. The upper end of the torque sensor 20 is fixedly connected to a driving rod 19. An operation screen 12 is arranged on the front outer surface of the test bench 11.

[0023] By adopting the above technical solution, when detecting the torque of the torque wrench 15, the servo motor 21 is started and operated. The test bench 11 fixedly supports the servo motor 21 through the cavity 50. The servo motor 21 transmits the torque to the driving rod 19 through the torque sensor 20. The driving rod 19 drives the fixing sleeve 18 to rotate. The fixing sleeve 18 clamps and fixes the sleeve 17 on the lower side of the torque wrench 15 through the compensation assembly, so as to drive the sleeve 17 to rotate through the fixing sleeve 18. The torque sensor 20 can measure the rotation torque of the sleeve 17. The operation screen 12 on the surface of the test bench 11 facilitates the operator to operate and observe.

[0024] As Figure 1 shown in Figure 6 FIG. [FIGURE NUMBER], an extrusion assembly is arranged inside the sleeve 17. The extrusion assembly includes a mounting sleeve 22 fixedly connected to the outer surface of the lower end of the torque wrench 15. A chute 23 is embedded in the lower end surface of the mounting sleeve 22. A piston plate 46 is slidably connected to the inner surface of the chute 23. An extrusion sleeve 25 is fixedly connected to the outer surface of the lower end of the piston plate 46.

[0025] The lower end of the extrusion sleeve 25 penetrates to the outside of the chute 23. A first spring 24 is fixedly connected to the outer surface of the upper end of the piston plate 46. The extrusion sleeve 25 is located directly above the movable sleeve 27. The piston plate 46 is annular. A clamping plate 16 for clamping the torque wrench 15 is fixedly connected to the outer surface of the upper end of the test bench 11. The clamping plate 16 is arc-shaped.

[0026] By adopting the above technical solution, during the downward movement and clamping process of the torque wrench 15, the mounting sleeve 22 inside the sleeve 17 will be driven to move synchronously. The mounting sleeve 22 slidably supports the piston plate 46 through the chute 23. The piston plate 46 tractionally supports the extrusion sleeve 25. As the mounting sleeve 22 gradually moves downward, the lower end of the extrusion sleeve 25 will contact the upper end of the movable sleeve 27. At this time, the extrusion sleeve 25 will push the movable sleeve 27 to move downward synchronously, and the fixing rod 26 will be located inside the mounting sleeve 22, thereby driving the compensation assembly to start and operate. During the continuous downward movement of the extrusion sleeve 25, under the resistance of the movable sleeve 27, it will push the piston plate 46 inside the chute 23 to move upward and compress the first spring 24. When the extrusion sleeve 25 is separated from the movable sleeve 27, the extrusion sleeve 25 will move reversely and reset under the elastic force of the first spring 24. The test bench 11 clamps and fixes the handle of the torque wrench 15 through the elastic force of the clamping plate 16.

[0027] As Figure 5 , Figure 8 shown in Figure 9 It should be noted that the [FIGURE NUMBER] in the translation of ID=7 needs to be replaced with the actual figure number in the original text.As shown, an expansion component is provided inside the fixed sleeve 18. The expansion component includes a first bladder 36 fixedly connected to the lower end of the inner surface of the fixed sleeve 18. The first bladder 36 is circularly distributed outside the fixed rod 26. The upper outer surface of the first bladder 36 is fixedly connected to the lower end of the movable sleeve 27. A telescopic tube 38 is fixedly connected to the outer surface of the first bladder 36. A second spring 37 is sleeved inside the first bladder 36.

[0028] A receiving groove 49 is recessed on the side of the pressing plate 33 away from the swing rod 30. A second bladder 39 is fixedly connected to the inner surface of the receiving groove 49. One end of the telescopic tube 38 away from the first bladder 36 is communicated with the inside of the second bladder 39. A contact plate 40 is slidably connected to the inner surface of the receiving groove 49. The outer surface of the contact plate 40 is fixedly connected to the second bladder 39. The number of the second bladders 39 and the contact plates 40 is several groups and is correspondingly distributed with the pressing plate 33. An extrusion groove 47 is formed on the inner surface of the fixed sleeve 18. A movable plate 48 is slidably connected to the inside of the extrusion groove 47. The movable plate 48 is arc-shaped and made of an elastic material.

[0029] By adopting the above technical solution, in order to further improve the clamping stability of the pressing plate 33 on the sleeve 17, an expansion component is provided. When the movable sleeve 27 slides downward along the surface of the fixed rod 26, the first bladder 36 will be squeezed. At this time, the gas inside the first bladder 36 will enter the inside of the second bladder 39 through the telescopic tube 38 under the action of pressure. The pressing plate 33 fixedly installs the second bladder 39 through the receiving groove 49. As the gas inside the second bladder 39 is continuously injected, the volume of the second bladder 39 will gradually expand. The contact plate 40 is pushed outwards from the inside of the receiving groove 49 through the second bladder 39, so that the contact between the contact plate 40 and the inner surface of the sleeve 17 is closer. During the clamping process of the sleeve 17, the outer surface of the sleeve 17 will slide and contact with the outer surface of the movable plate 48. The movable plate 48 will apply a certain extrusion force to the outside of the sleeve 17 under its own elastic action. The fixed sleeve 18 slidably supports the movable plate 48 through the extrusion groove 47. By setting the expansion component, the expansion of the second bladder 39 can increase the friction between the contact plate 40 and the sleeve 17. At the same time, by several groups of movable plates 48 squeezing the sleeve 17 on the outside, the clamping stability of the sleeve 17 and the torque wrench 15 can be further improved, and the probability of slipping between the sleeve 17 and the fixed sleeve 18 can be reduced, which helps to reduce the measurement error and improve the torque measurement accuracy.

[0030] Such as Figure 1 、 Figure 3 And Figure 7As shown in the figure, a retaining ring 13 is fixedly connected to the outer surface of the upper end of the test bench 11 outside the fixed sleeve 18. A measuring component is arranged inside the retaining ring 13. The measuring component includes a movable groove 45 opened on the inner surface of the retaining ring 13. The movable groove 45 is annular. A pointing plate one 41 is fixedly connected to the outer surface of the fixed sleeve 18. A pointing plate two 51 is slidably connected to the inner side of the movable groove 45. The pointing plate two 51 is located above the pointing plate one 41.

[0031] The number of the movable grooves 45 and the pointing plates two 51 is several groups and they are distributed in parallel up and down. A damping rotating shaft 42 is fixedly connected to the outer surface of the pointing plate two 51. The outer surface of the damping rotating shaft 42 is symmetrically rotatably connected with a dial 43. A scale line one 14 is opened on the inner surface of the retaining ring 13. A scale line two 44 is opened on the outer surface of the upper end of the test bench 11 inside the retaining ring 13.

[0032] By adopting the above technical solution, during the rotation of the fixed sleeve 18, the pointing plate one 41 will be driven to rotate synchronously. According to the position of the pointing plate one 41, the torsion angle of the torque wrench 15 can be visually measured by comparing the scale line one 14 and the scale line two 44. When the torsion angle is greater than 360 degrees, the operator rotates the dial 43 with the damping rotating shaft 42 as the fulcrum. The dial 43 and the damping rotating shaft 42 are in a damping rotational connection. Therefore, the dial 43 will remain stationary without external force. At this time, when the pointing plate one 41 rotates to the lower side of the pointing plate two 51, the pointing plate one 41 will drive the pointing plate two 51 to rotate through the dial 43. The number of the dials 43 is two groups and they are symmetrically distributed on both sides of the pointing plate two 51. The operator can rotate one of the dials 43 to the lower side according to the rotation direction of the fixed sleeve 18. For example, when the fixed sleeve 18 rotates clockwise, the front dial 43 is rotated to the lower side so that the pointing plate one 41 can drive the pointing plate two 51 to rotate. By setting several groups of pointing plates two 51, the rotation cycles of the torsion angle can be counted. At the same time, according to the position of the pointing plate two 51, the torsion angle of the torque wrench 15 can be measured by comparing the scale line two 44, thereby improving the convenience of torsion angle measurement.

[0033] A measuring method of a torque and torsion angle measuring device includes the following steps: S1: Before the test, the sleeve 17 is clamped into the fixed sleeve 18, and the main body of the torque wrench 15 is clamped and fixed by the clamping plate 16; S2: When clamping the sleeve 17, the installation sleeve 22 gradually moves downwards to drive the lower end of the extrusion sleeve 25 to contact with the upper end of the movable sleeve 27, driving the movable sleeve 27 to move downwards synchronously, thereby driving the compensation component to start running; S3: Under the pushing action of the swing rod 30, the extrusion plate 33 will move away from the fixed rod 26, and the sleeve 17 is clamped and fixed by the extrusion plate 33; S4: The servo motor 21 transmits the torque to the drive rod 19 through the torque sensor 20, and the torque sensor 20 can measure the rotational torque of the sleeve 17; S5: The contact plate 40 is pushed outwards from the inside of the receiving groove 49 by the second bladder 39, so that the contact plate 40 fits more closely to the inner surface of the sleeve 17; S6: According to the positions of the first pointing plate 41 and the second pointing plate 51, the twist angle of the torque wrench 15 can be visually measured by comparing the first scale line 14 and the second scale line 44.

[0034] The above is only a preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A torque and torsion angle measuring device, comprising a test bench (11) and a wrench (15), characterized in that: The outer surface of the upper end of the test bench (11) is rotatably connected to a driving rod (19), the upper end of the driving rod (19) is fixedly connected to a fixing sleeve (18), and a compensation component is arranged inside the fixing sleeve (18); The compensation component comprises a fixed rod (26) fixedly connected to the upper end of the inner surface of the fixed sleeve (18); the outer surface of the fixed rod (26) is slidably connected to a movable sleeve (27); the outer surface of the movable sleeve (27) is provided with a mounting groove (28); the inner surface of the mounting groove (28) is fixedly connected to a pin shaft (29); the outer surface of the pin shaft (29) is rotatably connected to a swing rod (30); one end of the swing rod (30) away from the pin shaft (29) is rotatably connected to a hinge; the swing rod (30) is hingedly connected to an extrusion plate (33) via the hinge; the outer surface of the lower end of the extrusion plate (33) is slidably connected to the upper end of the inner surface of the fixed sleeve (18).

2. A torque and torsion angle measuring device according to claim 1, characterized in that: The hinged portion comprises a second pin shaft (35) rotatably connected to the swing rod (30); a second mounting groove (34) is provided on the outer surface of the extrusion plate (33) near the fixed rod (26); the second pin shaft (35) is fixedly connected to the inner surface of the second mounting groove (34); the number of the extrusion plates (33) and the swing rod (30) are both a plurality of groups and are distributed in a ring array; a guide groove (31) is provided at the lower end of the inner surface of the fixed sleeve (18); a guide block (32) is slidably connected to the inner surface of the guide groove (31); and the outer surface of the upper end of the guide block (32) is fixedly connected to the extrusion plate (33).

3. A torque and torsion angle measuring device according to claim 2, characterized in that: The outer surface of the lower end of the wrench (15) is rotatably connected to a sleeve (17), and an extrusion assembly is arranged inside the sleeve (17). The extrusion assembly includes a mounting sleeve (22) fixedly connected to the outer surface of the lower end of the wrench (15), and a slide groove (23) is embedded in the outer surface of the lower end of the mounting sleeve (22). The inner surface of the slide groove (23) is slidably connected to a piston plate (46), and the outer surface of the lower end of the piston plate (46) is fixedly connected to the extrusion sleeve (25).

4. A torque and torsion angle measuring device according to claim 3, characterized in that: The lower end of the extrusion sleeve (25) passes through the outside of the slide groove (23), the upper outer surface of the piston plate (46) is fixedly connected to a spring 1 (24), the extrusion sleeve (25) is located directly above the movable sleeve (27), the piston plate (46) is in a circular ring shape, and the upper outer surface of the test bench (11) is fixedly connected to a clamping plate (16) for clamping the wrench (15), and the clamping plate (16) is in an arc shape.

5. A torque and torsion angle measuring device according to claim 4, characterized in that: An expansion assembly is arranged on the inner side of the fixed sleeve (18), and the expansion assembly includes a capsule body (36) fixedly connected to the lower end of the inner surface of the fixed sleeve (18), and the capsule body (36) is distributed in a circular ring shape on the outer side of the fixed rod (26), and the outer surface of the upper end of the capsule body (36) is fixedly connected to the lower end of the movable sleeve (27), and the outer surface of the capsule body (36) is fixedly connected to the telescopic tube (38), and the inner side of the capsule body (36) is provided with a spring body (37).

6. A torque and torsion angle measuring device according to claim 5, characterized in that: A receiving groove (49) is embedded in the side of the extrusion plate (33) away from the swing rod (30), and the inner surface of the receiving groove (49) is fixedly connected to the second capsule (39). The end of the telescopic tube (38) away from the first capsule (36) is connected to the inside of the second capsule (39). A contact plate (40) is slidably connected to the inner surface of the receiving groove (49), and the outer surface of the contact plate (40) is fixedly connected to the second capsule (39). The number of the second capsule (39) and the contact plate (40) are both several groups and are distributed corresponding to the extrusion plate (33). An extrusion groove (47) is opened on the inner surface of the fixed sleeve (18), and a movable plate (48) is slidably connected to the inner side of the extrusion groove (47), and the movable plate (48) is in an arc shape and is made of elastic material.

7. A torque and torsion angle measuring device according to claim 6, characterized in that: A cavity (50) is embedded in the inner side of the test bench (11), a test assembly is arranged inside the cavity (50), the test assembly comprises a servo motor (21) fixedly connected to the lower end of the inner surface of the cavity (50), a torque sensor (20) is fixedly connected to the output end of the servo motor (21), the upper end of the torque sensor (20) is fixedly connected to the driving rod (19), and an operation screen (12) is arranged on the outer surface of the front end of the test bench (11).

8. A torque and torsion angle measuring device according to claim 7, characterized in that: The outer surface of the upper end of the test bench (11) is located outside the fixed sleeve (18) and is fixedly connected to a retaining ring (13). A measuring assembly is arranged inside the retaining ring (13). The measuring assembly comprises a movable groove (45) provided on the inner surface of the retaining ring (13). The movable groove (45) is in a circular ring shape. A first pointing plate (41) is fixedly connected to the outer surface of the fixed sleeve (18). A second pointing plate (51) is slidably connected inside the movable groove (45). The second pointing plate (51) is located on the upper side of the first pointing plate (41).

9. A torque and torsion angle measuring device and method according to claim 8, characterized in that: The movable grooves (45) and the second pointing plate (51) are provided in a plurality of groups and are vertically and horizontally distributed. The outer surface of the second pointing plate (51) is fixedly connected to a damping shaft (42). The outer surface of the damping shaft (42) is symmetrically rotatably connected to a paddle (43). The inner surface of the retaining ring (13) is provided with a first scale line (14). The outer surface of the upper end of the test bench (11) is located inside the retaining ring (13) and is provided with a second scale line (44).

10. A measuring method applicable to a torque and torsion angle measuring device according to claim 9, characterized in that: The steps include: S1: Before testing, the sleeve (17) is clamped into the interior of the fixing sleeve (18), and the main body of the wrench (15) is clamped and fixed by the clamping plate (16); S2: When the sleeve (17) is clamped, the installation sleeve (22) gradually moves downward, driving the lower end of the extrusion sleeve (25) to contact the upper end of the movable sleeve (27), driving the movable sleeve (27) to move downward synchronously, thereby driving the compensation component to start operation; S3: The extrusion plate (33) moves to a side away from the fixing rod (26) under the pushing action of the swing rod (30), and the sleeve (17) is clamped and fixed by the extrusion plate (33); S4: The servo motor (21) transmits the torque to the driving rod (19) via the torque sensor (20), and the torque sensor (20) can measure the rotational torque of the sleeve (17); S5: pushing the contact plate (40) outward from the inside of the receiving groove (49) through the second capsule (39), so that the contact plate (40) and the inner surface of the sleeve (17) are more closely attached; S6: By comparing the positions of the first pointing plate (41) and the second pointing plate (51) with the first scale line (14) and the second scale line (44), the torque angle of the wrench (15) can be measured intuitively.

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