Calibration method for sheet type hinge moment balance with axial force
By using a loading device and a four-step calibration method, the weight gravity is directly applied, which solves the problems of frictional force introduction error and single-direction loading, and realizes multi-directional calibration of the sheet-type hinge moment balance with axial force, improving measurement accuracy.
Patent Information
- Application Number
- CN202510578448.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2025-07-11
AI Technical Summary
In the prior art, the sheet-type hinge moment balance with axial force has problems of reduction in accuracy caused by frictional force introduction measurement error and single-direction loading during calibration.
A loading device including calibration support rod, calibration joint, a sheet hinge moment balance with axial force, a converter joint, a slider and a loading head is adopted. The weight gravity is directly applied through the calibration steps in four directions (positive normal, negative normal, positive axial, negative axial) to avoid errors in the frictional force of the pulley.
Four-direction calibration of the sheet-type hinge moment balance with axial force is achieved, which improves measurement accuracy, reduces measurement errors and improves measurement accuracy.
Smart Images
Figure CN120293472A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of multi-component aerodynamic load measurement sensors, and particularly relates to a calibration method for a flapped hinge moment balance with axial force. Background Art
[0002] At present, in the hinge moment measurement tests of scaled models in high-speed wind tunnel tests, balances with a flapped structure are widely used to measure hinge moments, which are called flapped hinge moment balances. With the development of aerospace technology, especially the research and development of advanced aircraft, the requirements for the quality of hinge moment test data are getting higher and higher, and higher requirements are put forward for the measurement accuracy of flapped hinge moment balances. In order to improve the measurement accuracy of flapped hinge moment balances, the flapped hinge moment balances have developed from three-component to four-component (adding axial force) or five-component (adding axial force and yaw moment). Such four-component or five-component flapped hinge moment balances are collectively referred to as flapped hinge moment balances with axial force. The calibration of flapped hinge moment balances with axial force mostly uses the axial force loading structure of a conventional six-component calibration frame, and converts the gravity of the weights into horizontal axial force through a fixed pulley structure and applies it to the loading device to calibrate the axial force and yaw moment in the axial force direction, but can only be calibrated in a single direction (generally the positive axial force direction). Due to the relatively small axial force of the flapped hinge moment balance with axial force, the existence of pulley friction will introduce measurement errors in the balance; at the same time, single-direction loading will also increase measurement errors and reduce measurement accuracy.
[0003] In order to improve the measurement accuracy, it is urgent to develop a calibration method for flapped hinge moment balances with axial force. Summary of the Invention
[0004] The technical problem to be solved by the present invention is to provide a calibration method for a flapped hinge moment balance with axial force to overcome the defects of the prior art.
[0005] The loading device used in the calibration method of the flapped hinge moment balance with axial force of the present invention includes a calibration support rod, a calibration joint, a flapped hinge moment balance with axial force, a conversion joint, a slider, and a loading head; The calibration method includes the following steps: S10. Calibration in the positive normal force direction; S20. Calibration in the negative normal force direction; S30. Calibration in the positive axial force direction; S40. Calibration in the negative axial force direction.
[0006] Furthermore, the front section of the calibration support rod is a flat section, and the rear section of the calibration support rod is a tapered section.
[0007] Further, the calibration joint is a long strip plate I, and three connecting surfaces are arranged in sequence from front to back: connecting surface I, connecting surface II, and connecting surface III; the three connecting surfaces are parallel; Among them, connecting surface I and connecting surface II are located on the upper surface of the long strip plate I and are in the same horizontal plane; connecting surface III is located on the lower surface of the long strip plate I.
[0008] Further, the chip hinge moment balance with axial force is a long strip plate II, and three connecting surfaces are arranged in sequence from front to back: connecting surface IV, connecting surface V, and connecting surface VI; the three connecting surfaces are parallel; Among them, connecting surface IV and connecting surface VI are located on the lower surface of the long strip plate II and are in the same horizontal plane; connecting surface V is located on the upper surface of the long strip plate II.
[0009] Further, the conversion joint is an I-beam I, with vertical plates on the left and right sides and a horizontal beam in the middle; five connecting surfaces and four contact surfaces are arranged on the I-beam I; the five connecting surfaces are: connecting surface VII, connecting surface VIII, connecting surface IX, connecting surface X, and connecting surface XI; the four contact surfaces are: contact surface I, contact surface II, contact surface III, and contact surface IV; Among them, connecting surface VII and connecting surface XI are parallel and are located outside the two vertical plates of the I-beam I; connecting surface VIII, connecting surface IX, and connecting surface X are parallel, and connecting surface VIII is located on the lower surface of the horizontal beam; connecting surface IX and connecting surface X correspond up and down, connecting surface IX is located on the lower surface of the horizontal beam, and connecting surface X is located on the upper surface of the horizontal beam; Contact surface I and contact surface II are respectively located on the front and back sides of the left vertical plate, and contact surface IV and contact surface III are respectively located on the front and back sides of the right vertical plate.
[0010] Further, the slider is an I-beam II, with a horizontal plate I and a horizontal plate II respectively on the upper and lower sides and a vertical beam in the middle; two connecting surfaces and two contact surfaces are arranged on the I-beam II, the two connecting surfaces are respectively connecting surface XII and connecting surface XIII, and the two contact surfaces are respectively contact surface V and contact surface VI; Among them, connecting surface XIII and connecting surface XII are parallel, connecting surface XIII is located on the upper surface of the horizontal plate I, and connecting surface XII is located on the lower surface of the horizontal plate II; contact surface V and contact surface VI are parallel, contact surface V is located on the front side of the horizontal plate II, and contact surface VI is located on the back side of the horizontal plate II.
[0011] Further, the loading head is a horizontal plate III; a chute is arranged on the upper surface of the horizontal plate III, and the chute is composed of contact surface VII, connecting surface XIV, and contact surface VIII; connecting surface XIV is a middle horizontal plane, and three parallel waist-shaped grooves are arranged on the connecting surface XIV; contact surface VII and contact surface VIII are the front and back side surfaces; Four loading support arms extend outward from the four corners of the horizontal plate Ⅲ respectively; one loading point is arranged on the upper surface of each of the four loading support arms, and the numbers of the four loading points are Loading Point Ⅰ, Loading Point Ⅱ, Loading Point Ⅲ and Loading Point Ⅳ respectively. The tip points of the four loading points are located in the same horizontal plane; the centroid of the four loading points is the center of the loading head.
[0012] Furthermore, the specific steps of the calibration method are as follows: S10. Normal force direction calibration; S101. Fix the tapered section of the calibration rod on the calibration frame. S102. Connect the flat plate section of the calibration rod and the joint surface Ⅲ of the calibration joint through plane fitting, pin positioning and screw tightening. S103. Make the joint surface I and joint surface Ⅱ of the calibration joint correspond to the joint surface Ⅳ and joint surface Ⅵ of the leaf spring hinge torque balance with axial force respectively, and connect them through plane fitting, pin positioning and screw tightening. S104. Connect the joint surface Ⅴ of the leaf spring hinge torque balance with axial force and the joint surface Ⅷ of the adapter through plane fitting, pin positioning and screw tightening. S105. Connect the joint surface Ⅸ of the adapter and the joint surface ⅩⅢ of the slider through plane fitting, pin positioning and screw tightening. S106. Make the contact surface Ⅴ and contact surface Ⅵ of the slider contact with the contact surface Ⅶ and contact surface Ⅷ of the loading head respectively, and slide in the chute composed of the contact surface Ⅶ, joint surface ⅩⅣ and contact surface Ⅷ to make the element center of the leaf spring hinge torque balance with axial force coincide with the center of the loading head; connect the loading head joint surface ⅩⅣ and the joint surface Ⅻ of the slider through plane fitting, pin positioning and tighten with a bolt assembly passing through the waist-shaped groove from bottom to top. S107. Apply loads on Loading Point Ⅰ, Loading Point Ⅱ, Loading Point Ⅲ and Loading Point Ⅳ of the loading head to complete the static calibration of the normal force, pitching moment and rolling moment in the positive normal force direction. S20. Negative normal force direction calibration; S201. Remove the pin and screw at the connection between the joint surface Ⅸ of the adapter and the joint surface ⅩⅢ of the slider in step S105, and remove the slider and the loading head as a whole. S202. Rotate the calibration rod, calibration joint and leaf spring hinge torque balance with axial force as a whole by 180° through the calibration frame, and place the joint surface Ⅹ of the adapter directly below. S203. Connect the joint surface Ⅹ of the adapter and the contact surface ⅩⅡ of the slider through plane fitting, pin positioning and screw tightening. S204. Repeat the loading process in step S107 to complete the static calibration of the normal force, pitching moment and rolling moment in the negative normal force direction. S30. Positive axial force direction calibration; S301. Remove the pins and screws at the connection between contact surface Ⅹ of the adapter and contact surface ⅩⅢ of the slider in step S203, and remove the slider and the loading head. S302. Remove the bolt assembly at the connection between contact surface ⅩⅣ of the loading head and contact surface Ⅻ of the slider in step S106, and remove the loading head. S303. Rotate the calibration support rod, calibration joint, and the axial force type leaf hinge moment balance as a whole by 90° through the calibration frame, and place contact surface ⅩI of the adapter directly below. S304. Make contact surface Ⅲ and contact surface Ⅳ of the adapter contact with contact surface Ⅶ and contact surface Ⅷ of the loading head respectively, and slide in the chute formed by contact surface Ⅶ, connection surface ⅩⅣ, and contact surface Ⅷ, so that the element center of the axial force type leaf hinge moment balance coincides with the center of the loading head. Connect the connection surface of the adapter and connection surface ⅩⅣ of the loading head tightly by plane fit, pin positioning, and bolts passing through the waist-shaped groove from bottom to top. S305. Repeat the loading process in step S107 to complete the static calibration of the axial force, yaw moment, and roll moment in the positive axial force direction. S40. Negative axial force direction calibration; S401. Remove the bolt assembly at the connection between connection surface ⅩI of the adapter and connection surface ⅩⅣ of the loading head in step S305, and remove the loading head. S402. Rotate the calibration support rod, calibration joint, and the axial force type leaf hinge moment balance as a whole by 180° through the calibration frame, and place contact surface Ⅶ of the adapter directly below. S403. Make contact surface I and contact surface Ⅱ of the adapter contact with contact surface Ⅶ and contact surface Ⅷ of the loading head respectively, and slide in the chute formed by contact surface Ⅶ, connection surface ⅩⅣ, and contact surface Ⅷ, so that the element center of the axial force type leaf hinge moment balance coincides with the center of the loading head. Connect contact surface Ⅶ of the adapter and connection surface ⅩⅣ of the loading head tightly by plane fit, pin positioning, and bolts passing through the waist-shaped groove from bottom to top. S404. Repeat the loading process in step S107 to complete the static calibration of the axial force, yaw moment, and roll moment in the negative axial force direction.
[0013] The calibration method of the axial force type leaf hinge moment balance of the present invention directly applies the gravity of the weight on the loading device, avoiding the measurement error of the balance introduced by the pulley friction force, realizing the calibration in four directions of the axial force type leaf hinge moment balance, effectively improving the measurement accuracy of the hinge moment, and having engineering practical value. Description of the Drawings
[0014] Figure 1Schematic diagram of loading in the positive normal force direction for the calibration method of the chip hinge torque balance with axial force of the present invention; Figure 2 Schematic diagram of the structure of the calibration joint used in the calibration method of the chip hinge torque balance with axial force of the present invention; Figure 3 Schematic diagram of the structure of the chip hinge torque balance with axial force used in the calibration method of the chip hinge torque balance with axial force of the present invention; Figure 4 Schematic diagram of the structure of the adapter used in the calibration method of the chip hinge torque balance with axial force of the present invention; Figure 5 Schematic diagram of the structure of the slider used in the calibration method of the chip hinge torque balance with axial force of the present invention; Figure 6 Schematic diagram of the structure of the loading head used in the calibration method of the chip hinge torque balance with axial force of the present invention; Figure 7 Schematic diagram of loading in the negative normal force direction for the calibration method of the chip hinge torque balance with axial force of the present invention; Figure 8 Schematic diagram of loading in the positive axial force direction for the calibration method of the chip hinge torque balance with axial force of the present invention; Figure 9 Schematic diagram of loading in the negative axial force direction for the calibration method of the chip hinge torque balance with axial force of the present invention.
[0015] In the figure, 1. Calibration support rod; 2. Calibration joint; 3. Chip hinge torque balance with axial force; 4. Adapter; 5. Slider; 6. Loading head; 7. Loading arm; 8. Slide groove; 21. Connection surface Ⅰ; 22. Connection surface Ⅱ; 23. Connection surface Ⅲ; 31. Connection surface Ⅳ; 32. Connection surface Ⅴ; 33. Connection surface Ⅵ; 41. Connection surface Ⅶ; 42. Contact surface Ⅰ; 43. Contact surface Ⅱ; 44. Connection surface Ⅷ; 45. Connection surface Ⅸ; 46. Connection surface Ⅹ; 47. Contact surface Ⅲ; 48. Contact surface Ⅳ; 49. Connection surface Ⅺ; 51. Contact surface Ⅴ; 52. Connection surface Ⅻ; 53. Connection surface ⅩⅢ; 54. Contact surface Ⅵ; 71. Loading point Ⅰ; 72. Loading point Ⅱ; 73. Loading point Ⅲ; 74. Loading point Ⅳ 81. Contact surface Ⅶ; 82. Connection surface ⅩⅣ; 83. Contact surface Ⅷ. Detailed implementation manners
[0016] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
[0017] Example: As Figure 1 shown, the loading device used in the calibration method of the axial-force-bearing chip hinge moment balance in this embodiment includes a calibration support rod 1, a calibration joint 2, an axial-force-bearing chip hinge moment balance 3, a conversion joint 4, a slider 5, and a loading head 6; The calibration method includes the following steps: S10. Calibration in the positive normal force direction; S20. Calibration in the negative normal force direction; S30. Calibration in the positive axial force direction; S40. Calibration in the negative axial force direction.
[0018] Furthermore, the front section of the calibration support rod 1 is a flat plate section, and the rear section of the calibration support rod 1 is a tapered section.
[0019] Furthermore, as Figure 2 shown, the calibration joint 2 is a long strip plate I, and three connection surfaces are arranged in sequence from front to back: connection surface I 21, connection surface II 22, and connection surface III 23; the three connection surfaces are parallel; Among them, connection surface I 21 and connection surface II 22 are located on the upper surface of the long strip plate I and are in the same horizontal plane; connection surface III 23 is located on the lower surface of the long strip plate I.
[0020] Furthermore, as Figure 3 shown, the axial-force-bearing chip hinge moment balance 3 is a long strip plate II, and three connection surfaces are arranged in sequence from front to back: connection surface IV 31, connection surface V 32, and connection surface VI 33; the three connection surfaces are parallel; Among them, connection surface IV 31 and connection surface VI 33 are located on the lower surface of the long strip plate II and are in the same horizontal plane; connection surface V 32 is located on the upper surface of the long strip plate II.
[0021] Furthermore, as Figure 4 shown, the conversion joint 4 is an I-beam I, with vertical plates on the left and right sides and a horizontal beam in the middle; five connection surfaces and four contact surfaces are arranged on the I-beam I; the five connection surfaces are: connection surface VII 41, connection surface VIII 44, connection surface IX 45, connection surface X 46, and connection surface XI 49; the four contact surfaces are: contact surface I 42, contact surface II 43, contact surface III 47, and contact surface IV 48; Among them, connection surface VII 41 and connection surface XI 49 are parallel and are located outside the two vertical plates of the I-beam I; connection surface VIII 44, connection surface IX 45, and connection surface X 46 are parallel, connection surface VIII 44 is located on the lower surface of the horizontal beam; connection surface IX 45 and connection surface X 46 correspond up and down, connection surface IX 45 is located on the lower surface of the horizontal beam, and connection surface X 46 is located on the upper surface of the horizontal beam; The contact surface I 42 and the contact surface II 43 are respectively located on the front and back sides of the left vertical plate, and the contact surface IV 48 and the contact surface III 47 are respectively located on the front and back sides of the right vertical plate.
[0022] Furthermore, as Figure 5 shown, the slider 5 is an I-beam II, with a horizontal plate I and a horizontal plate II at the upper and lower parts respectively, and a vertical beam in the middle; there are 2 connection surfaces and 2 contact surfaces provided on the I-beam II. The 2 connection surfaces are respectively the connection surface XII 52 and the connection surface XIII 53, and the 2 contact surfaces are respectively the contact surface V 51 and the contact surface VI 54; Among them, the connection surface XIII 53 and the connection surface XII 52 are parallel. The connection surface XIII 53 is located on the upper surface of the horizontal plate I, and the connection surface XII 52 is located on the lower surface of the horizontal plate II; the contact surface V 51 and the contact surface VI 54 are parallel. The contact surface V 51 is located on the front side surface of the horizontal plate II, and the contact surface VI 54 is located on the rear side surface of the horizontal plate II.
[0023] Furthermore, as Figure 6 shown, the loading head 6 is a horizontal plate III; a chute 8 is provided on the upper surface of the horizontal plate III. The chute 8 is composed of a contact surface VII 81, a connection surface XIV 82 and a contact surface VIII 83; the connection surface XIV 82 is an intermediate horizontal plane, and 3 parallel kidney-shaped grooves are provided on the connection surface XIV 82; the contact surface VII 81 and the contact surface VIII 83 are the front and rear side surfaces; 4 loading support arms 7 respectively extend outwards from the 4 corners of the horizontal plate III; 1 loading point is provided on the upper surface of each of the 4 loading support arms 7. The numbers of the 4 loading points are respectively the loading point I 71, the loading point II 72, the loading point III 73 and the loading point IV 74. The tip points of the 4 loading points are located in the same horizontal plane; the centroid of the 4 loading points is the center of the loading head 6.
[0024] Furthermore, the specific steps of the calibration method are as follows: S10. As Figure 1 shown, calibrate the positive normal force direction; S101. Fix the tapered section of the calibration rod 1 on the calibration frame; S102. Connect the flat section of the calibration rod 1 and the connection surface III 23 of the calibration joint 2 through plane fitting, pin positioning and screw tension fastening; S103. Make the connection surface I 21 and the connection surface II 22 of the calibration joint 2 correspond to the connection surface IV 31 and the connection surface VI 33 of the sheet hinge moment balance 3 with axial force respectively, and connect them through plane fitting, pin positioning and screw tension fastening; S104. Connect the connection surface V 32 of the sheet hinge moment balance 3 with axial force and the connection surface VIII 44 of the conversion joint 4 through plane fitting, pin positioning and screw tension fastening; S105. Fasten the connecting surface IX45 of the adapter 4 and the connecting surface XIII53 of the slider 5 together through planar mating, pin positioning, and screw tensioning; S106. Bring the contact surface V51 and the contact surface VI54 of the slider 5 into contact with the contact surface VII81 and the contact surface VIII83 of the loading head 6 respectively, and slide them within the chute 8 formed by the contact surface VII81, the connecting surface XIV82, and the contact surface VIII83, so that the center of the component of the flapped hinge moment balance 3 with axial force coincides with the center of the loading head 6; Fasten the connecting surface XIV82 of the loading head 6 and the connecting surface XII52 of the slider 5 together through planar mating, pin positioning, and tensioning with a bolt assembly that passes through the waist-shaped slot from bottom to top; S107. Apply loads at the loading points I71, II72, III73, and IV74 of the loading head 6 to complete the static calibration of the normal force, pitching moment, and rolling moment in the positive normal force direction; S20. As Figure 7 shown, calibration in the negative normal force direction; S201. Remove the pin and screw at the connection between the connecting surface IX45 of the adapter 4 and the connecting surface XIII53 of the slider 5 in step S105, and remove the slider 5 and the loading head 6 as a whole; S202. Rotate the calibration support rod 1, the calibration adapter 2, and the flapped hinge moment balance 3 with axial force as a whole by 180° through the calibration frame, and place the connecting surface X46 of the adapter 4 directly below; S203. Fasten the connecting surface X46 of the adapter 4 and the contact surface XII53 of the slider 5 together through planar mating, pin positioning, and screw tensioning; S204. Repeat the loading process in step S107 to complete the static calibration of the normal force, pitching moment, and rolling moment in the negative normal force direction; S30. As Figure 8 shown, calibration in the positive axial force direction; S301. Remove the pin and screw at the connection between the connecting surface X46 of the adapter 4 and the contact surface XIII53 of the slider 5 in step S203, and remove the slider 5 and the loading head 6; S302. Remove the bolt assembly at the connection between the connecting surface XIV82 of the loading head 6 and the connecting surface XII52 of the slider 5 in step S106, and remove the loading head 6; S303. Rotate the calibration support rod 1, the calibration adapter 2, and the flapped hinge moment balance 3 with axial force as a whole by 90° through the calibration frame, and place the connecting surface XI49 of the adapter 4 directly below; S304. Contact surface Ⅲ47 and contact surface Ⅳ48 of the adapter 4 are respectively brought into contact with contact surface Ⅶ81 and contact surface Ⅷ83 of the loading head 6, and slide within the chute 8 formed by contact surface Ⅶ81, connection surface ⅩⅣ82 and contact surface Ⅷ83, so that the element center of the axial-force type leaf hinge moment balance 3 coincides with the center of the loading head 6. Connect the connection surface 49 of the adapter 4 and the connection surface ⅩⅣ82 of the loading head 6 by planar mating, pin positioning, and tightening with a bolt assembly that passes through the waist-shaped slot from bottom to top; S305. Repeat the loading process of step S107 to complete the static calibration of the axial force, yaw moment, and roll moment in the positive axial force direction; S40. As Figure 9 shown, calibration in the negative axial force direction; S401. Remove the bolt assembly at the connection between the connection surface ⅩI49 of the adapter 4 and the connection surface ⅩⅣ82 of the loading head 6 in step S305, and remove the loading head 6; S402. Rotate the calibration support rod 1, calibration joint 2, and the axial-force type leaf hinge moment balance 3 as a whole by 180° through the calibration frame, and place the connection surface Ⅶ41 of the adapter 4 directly below; S403. Contact surface I42 and contact surface Ⅱ43 of the adapter 4 are respectively brought into contact with contact surface Ⅶ81 and contact surface Ⅷ83 of the loading head 6, and slide within the chute 8 formed by contact surface Ⅶ81, connection surface ⅩⅣ82 and contact surface Ⅷ83, so that the element center of the axial-force type leaf hinge moment balance 3 coincides with the center of the loading head 6. Connect the connection surface Ⅶ41 of the adapter 4 and the connection surface ⅩⅣ82 of the loading head 6 by planar mating, pin positioning, and tightening with a bolt assembly that passes through the waist-shaped slot from bottom to top; S404. Repeat the loading process of step S107 to complete the static calibration of the axial force, yaw moment, and roll moment in the negative axial force direction.
[0025] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and embodiments. For those skilled in the art, without departing from the principles of the present invention, all features disclosed in the present invention, or all steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any way. The present invention is not limited to the specific details and the illustrated examples herein.
Claims
1. A calibration method for a chip hinge torque balance with axial force, characterized in that, The loading device used in the calibration method described above includes a calibration support rod (1), a calibration joint (2), a flat-strip hinge moment balance with axial force (3), a conversion joint (4), a slider (5), and a loading head (6); The calibration method includes the following steps: S10. Calibration in the positive normal force direction; S20. Calibration in the negative normal force direction; S30. Calibration in the positive axial force direction; S40. Calibration in the negative axial force direction.
2. The calibration method of the chip hinge moment balance with axial force according to claim 1, wherein The front section of the calibration support rod (1) is a flat plate section, and the rear section of the calibration support rod (1) is a tapered section.
3. The calibration method of the chip hinge moment balance with axial force according to claim 1, wherein The calibration joint (2) is a long strip plate I, and three connecting surfaces are arranged in sequence from front to back: connecting surface I (21), connecting surface II (22), and connecting surface III (23); the three connecting surfaces are parallel; Among them, connecting surface I (21) and connecting surface II (22) are located on the upper surface of the long strip plate I and are in the same horizontal plane; connecting surface III (23) is located on the lower surface of the long strip plate I.
4. The calibration method of the chip hinge torque balance with axial force according to claim 1, characterized in that The flat-strip hinge moment balance with axial force (3) is a long strip plate II, and three connecting surfaces are arranged in sequence from front to back: connecting surface IV (31), connecting surface V (32), and connecting surface VI (33); the three connecting surfaces are parallel; Among them, connecting surface IV (31) and connecting surface VI (33) are located on the lower surface of the long strip plate II and are in the same horizontal plane; connecting surface V (32) is located on the upper surface of the long strip plate II.
5. The calibration method of the chip hinge torque balance with axial force according to claim 1, characterized in that, The conversion joint (4) is an I-beam I, with vertical plates on the left and right sides and a horizontal beam in the middle; five connecting surfaces and four contact surfaces are provided on the I-beam I; the five connecting surfaces are: connecting surface VII (41), connecting surface VIII (44), connecting surface IX (45), connecting surface X (46), and connecting surface XI (49); the four contact surfaces are: contact surface I (42), contact surface II (43), contact surface III (47), and contact surface IV (48); Among them, connecting surface VII (41) and connecting surface XI (49) are parallel and are located outside the two vertical plates of the I-beam I; connecting surface VIII (44), connecting surface IX (45), and connecting surface X (46) are parallel, and connecting surface VIII (44) is located on the lower surface of the horizontal beam; connecting surface IX (45) and connecting surface X (46) are vertically corresponding, connecting surface IX (45) is located on the lower surface of the horizontal beam, and connecting surface X (46) is located on the upper surface of the horizontal beam; Contact surface I (42) and contact surface II (43) are respectively located on the front and rear sides of the left vertical plate, and contact surface IV (48) and contact surface III (47) are respectively located on the front and rear sides of the right vertical plate.
6. The calibration method of the chip hinge moment balance with axial force according to claim 1, characterized in that The slider (5) is an I-beam II, with a horizontal plate I and a horizontal plate II on the upper and lower sides respectively, and a vertical beam in the middle; two connecting surfaces and two contact surfaces are provided on the I-beam II, the two connecting surfaces are respectively connecting surface XII (52) and connecting surface XIII (53), and the two contact surfaces are respectively contact surface V (51) and contact surface VI (54); Among them, the connecting surface ⅩⅢ (53) and the connecting surface Ⅻ (52) are parallel. The connecting surface ⅩⅢ (53) is located on the upper surface of the horizontal plate Ⅰ, and the connecting surface Ⅻ (52) is located on the lower surface of the horizontal plate Ⅱ; the contact surface Ⅴ (51) and the contact surface Ⅵ (54) are parallel. The contact surface Ⅴ (51) is located on the front side surface of the horizontal plate Ⅱ, and the contact surface Ⅵ (54) is located on the rear side surface of the horizontal plate Ⅱ.
7. The calibration method of the chip hinge torque balance with axial force according to claim 1, characterized in that, The loading head (6) is the horizontal plate Ⅲ; a chute (8) is arranged on the upper surface of the horizontal plate Ⅲ. The chute (8) is composed of a contact surface Ⅶ (81), a connecting surface ⅩⅣ (82) and a contact surface Ⅷ (83); the connecting surface ⅩⅣ (82) is an intermediate horizontal plane, and 3 parallel waist-shaped grooves are arranged on the connecting surface ⅩⅣ (82); the contact surface Ⅶ (81) and the contact surface Ⅷ (83) are the front and rear side surfaces; 4 corners of the horizontal plate Ⅲ respectively extend outwards by 1 loading support arm (7); 1 loading point is arranged on the upper surface of each of the 4 loading support arms (7). The numbers of the 4 loading points are respectively the loading point Ⅰ (71), the loading point Ⅱ (72), the loading point Ⅲ (73) and the loading point Ⅳ (74). The tip points of the 4 loading points are located in the same horizontal plane; the centroid of the 4 loading points is the center of the loading head (6).
8. The calibration method of the chip hinge torque balance with axial force according to claim 1, characterized in that The specific steps of the described calibration method are as follows: S10. Positive normal force direction calibration; S101. Fix the tapered section of the calibration support rod (1) on the calibration frame; S102. Connect the flat section of the calibration support rod (1) and the connecting surface Ⅲ (23) of the calibration joint (2) by plane fitting, pin positioning and screw tension connection; S103. Make the connecting surface I (21) and the connecting surface Ⅱ (22) of the calibration joint (2) respectively correspond to the connecting surface Ⅳ (31) and the connecting surface Ⅵ (33) of the flapped hinge moment balance with axial force (3), and connect them by plane fitting, pin positioning and screw tension connection; S104. Connect the connecting surface Ⅴ (32) of the flapped hinge moment balance with axial force (3) and the connecting surface Ⅷ (44) of the adapter (4) by plane fitting, pin positioning and screw tension connection; S105. Connect the connecting surface Ⅸ (45) of the adapter (4) and the connecting surface ⅩⅢ (53) of the slider (5) by plane fitting, pin positioning and screw tension connection; S106. Make the contact surface Ⅴ (51) and the contact surface Ⅵ (54) of the slider (5) respectively contact the contact surface Ⅶ (81) and the contact surface Ⅷ (83) of the loading head (6), and slide in the chute (8) composed of the contact surface Ⅶ (81), the connecting surface ⅩⅣ (82) and the contact surface Ⅷ (83), so that the element center of the flapped hinge moment balance with axial force (3) coincides with the center of the loading head (6); the connecting surface ⅩⅣ (82) of the loading head (6) and the connecting surface Ⅻ (52) of the slider (5) are connected by plane fitting, pin positioning and a bolt assembly passing through the waist-shaped groove from bottom to top for tension connection; S107. Apply loading on the loading point Ⅰ (71), the loading point Ⅱ (72), the loading point Ⅲ (73) and the loading point Ⅳ (74) of the loading head (6) to complete the static calibration of the normal force, pitching moment and rolling moment in the positive normal force direction; S20. Negative normal force direction calibration; S201. Remove the pin and screw at the connection between the connecting surface IX (45) of the adapter (4) and the connecting surface XIII (53) of the slider (5) in step S105, and remove the slider (5) and the loading head (6) as a whole; S202. Rotate the calibration support rod (1), calibration adapter (2), and the flat hinge moment balance (3) with axial force as a whole by 180° through the calibration frame, and place the connecting surface X (46) of the adapter (4) directly below; S203. Connect the contact surface XII (53) between the connecting surface X (46) of the adapter (4) and the slider (5) through plane fitting, pin positioning, and screw tensioning; S204. Repeat the loading process in step S107 to complete the static calibration of the normal force, pitch moment, and roll moment in the negative normal force direction; S30. Calibration in the positive axial force direction; S301. Remove the pin and screw at the connection between the contact surface XIII (53) of the adapter (4) and the slider (5) in step S203, and remove the slider (5) and the loading head (6); S302. Remove the bolt assembly at the connection between the connecting surface XIV (82) of the loading head (6) and the connecting surface XII (52) of the slider (5) in step S106, and remove the loading head (6); S303. Rotate the calibration support rod (1), calibration adapter (2), and the flat hinge moment balance (3) with axial force as a whole by 90° through the calibration frame, and place the connecting surface XI (49) of the adapter (4) directly below; S304. Bring the contact surface III (47) and contact surface IV (48) of the adapter (4) into contact with the contact surface VII (81) and contact surface VIII (83) of the loading head (6) respectively, and slide them in the chute (8) composed of the contact surface VII (81), connecting surface XIV (82), and contact surface VIII (83) to make the element center of the flat hinge moment balance (3) with axial force coincide with the center of the loading head (6). Connect the connecting surface (49) of the adapter (4) and the connecting surface XIV (82) of the loading head (6) through plane fitting, pin positioning, and tensioning with a bolt assembly passing through the waist-shaped slot from bottom to top; S305. Repeat the loading process in step S107 to complete the static calibration of the axial force, yaw moment, and roll moment in the positive axial force direction; S40. Calibration in the negative axial force direction; S401. Remove the bolt assembly at the connection between the connecting surface XI (49) of the adapter (4) and the connecting surface XIV (82) of the loading head (6) in step S305, and remove the loading head (6); S402. Rotate the calibration support rod (1), calibration adapter (2), and the flat hinge moment balance (3) with axial force as a whole by 180° through the calibration frame, and place the connecting surface VII (41) of the adapter (4) directly below; S403. Contact the contact surface I (42) and the contact surface II (43) of the adapter (4) with the contact surface VII (81) and the contact surface VIII (83) of the loading head (6) respectively, and slide within the chute (8) composed of the contact surface VII (81), the connecting surface XIV (82) and the contact surface VIII (83), so that the center of the element of the leaf hinge moment balance (3) with axial force coincides with the center of the loading head (6). Fasten and connect the connecting surface VII (41) of the adapter (4) and the connecting surface XIV (82) of the loading head (6) through planar fitting, pin positioning, and bolts passing through the waist-shaped groove from bottom to top and tightening; S404. Repeat the loading process in step S107 to complete the static calibration of the axial force, yaw moment, and roll moment in the negative axial force direction.