Rapid clamping device and method for modal test of electric steering engine

Abstract

The invention relates to the technical field of rapid clamping, in particular to a rapid clamping device and method for an electric steering engine modal test. The vertical plate assembly is provided with a transversely-through containing hole. The rotor assembly is placed in the containing hole and is provided with a connecting ring and a plurality of rolling pieces, and the outermost sides of the rolling pieces abut against the inner circumferential wall face of the containing hole; the rotating shaft assembly comprises a check ring and an adapter shaft. The adapter shaft is provided with a positioning part and a limiting part horizontally extending along one side of the positioning part. A first step face is formed on the side, facing the positioning part, of the limiting part and abuts against one side of the connecting ring, and a first assembling structure is arranged on the end face, away from the side where the limiting part is located, of the positioning part. A containing cavity is concavely formed in the side, away from the positioning part, of the limiting part and used for containing the electric steering engine. The check ring is provided with a second assembling structure which is detachably and fixedly connected with the first assembling structure, and the connecting ring is limited in the containing hole. In this way, the problems that an existing modal test tool needs to be assembled and disassembled repeatedly, and the modal test efficiency is low are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of rapid clamping, and in particular to a rapid clamping device and method for modal testing of an electric servo. Background Art

[0002] The electric servo is the deflection actuator of the weapon system. Its function is to rotate the actuator to generate the control torque of the subsystem according to the control signal of the control system to control the maneuvering flight of the product. The modality is an important indicator of the electric servo. It is the indicator that customers pay the most attention to and must be fully checked every time the acceptance is completed. The unreasonable allocation and adjustment of the modal indicators may cause resonance of the weapon system, resulting in uncontrollable flight status or other failures.

[0003] The development of electric rudder steering gear models has experienced explosive growth in recent years, and the modal testing of steering gears has also developed from the need for modal testing of individual models at the beginning of development to the need for modal testing of series products, the need for modal testing of products of the same type, and then to the need for modal testing of all products. However, the existing modal testing tooling has the disadvantages of large workload of repeated assembly and disassembly and low efficiency of modal testing, which is not conducive to improving production efficiency and capacity under the situation of increasing product output. The present invention inherits the ideas of existing clamping methods and clamping tools, focuses on solving the shortcomings of repeated assembly and disassembly and low efficiency of existing clamping methods and clamping tools, and designs a fast clamping method and clamping device to replace the existing modal testing tooling. Summary of the invention

[0004] In order to solve the problems of large workload of repeated assembly and disassembly and low efficiency of modal testing of existing modal testing tooling, the present invention provides a quick clamping device and method for modal testing of an electric servo.

[0005] In a first aspect, the present invention provides a quick clamping device for modal testing of an electric servo, comprising:

[0006] A vertical plate assembly, wherein the vertical plate assembly has a accommodating hole extending transversely therethrough;

[0007] A rotor assembly, the rotor assembly is placed in the receiving hole, the rotor assembly comprises a connecting ring and a plurality of rolling elements movably arranged on the connecting ring, the plurality of rolling elements rotate relative to the connecting ring along the axial direction of the connecting ring, and along the radial direction of the connecting ring, the outermost sides of the plurality of rolling elements abut against the inner peripheral wall surface of the receiving hole;

[0008] A rotating shaft assembly, the rotating shaft assembly includes a retaining ring and an adapter shaft, the adapter shaft has a positioning portion and a limiting portion extending horizontally along one side of the positioning portion, the outer diameter of the positioning portion is smaller than the outer diameter of the limiting portion, the limiting portion is formed with a first step surface toward the side where the positioning portion is located, along the radial direction of the connecting ring, the outer surface of the positioning portion abuts against the innermost side of the plurality of rolling elements, the first step surface abuts against one side of the connecting ring, the end surface of the positioning portion away from the side where the limiting portion is located is provided with a first assembly structure, the limiting portion is recessed with an accommodating cavity on the side away from the positioning portion, and the accommodating cavity is used to accommodate an electric steering gear;

[0009] The retaining ring is provided with a second assembly structure along the horizontal direction, the second assembly structure is detachably fixedly connected to the first assembly structure, and the retaining ring limits the connection ring to be located in the accommodating hole.

[0010] In some embodiments, the rotor assembly further comprises a fastener;

[0011] Along the axial direction of the connecting ring, a plurality of grooves are arranged on the connecting ring, and a plurality of the rolling elements are placed one by one in one of the grooves. A third assembly structure is also arranged on the connecting ring at the side where the groove is located, and the third assembly structure is staggered with the groove;

[0012] The fastener is provided with a fourth assembly structure, the fourth assembly structure is detachably fixedly connected to the third assembly structure, and the fastener limits the rolling element in the groove.

[0013] In some embodiments, the vertical plate assembly specifically includes: a vertical plate, a bottom plate and long plate ribs;

[0014] The first side of the long plate rib is fixed to the bottom plate, the second side of the long plate rib is fixed to the vertical plate, the vertical plate is provided with the accommodating hole, and the accommodating hole is staggered with the long plate rib.

[0015] In some embodiments, the shaft assembly further includes a positioning pin;

[0016] Along the radial direction of the connecting ring, a limiting groove is concavely formed on the outer peripheral surface of the limiting portion, and the limiting groove communicates with the limiting portion on the side where the first step surface is located;

[0017] The positioning pin passes through the vertical plate and is inserted into the limiting groove.

[0018] In some embodiments, along the radial direction of the connecting ring, a plurality of limiting holes are recessed on the outer peripheral surface of the limiting portion, and the plurality of limiting holes are arranged away from the first step surface. The limiting holes cooperate with the connecting piece to adjust and fix the electric servo.

[0019] In some embodiments, along the radial direction of the connecting ring, a plurality of reserved holes are recessed on the outer circumferential surface of the limiting portion, and the reserved holes are used to insert a wrench to rotate the rotating shaft assembly.

[0020] In some embodiments, the electric servo is installed in the process cabin, the process cabin is fixed in the accommodating cavity, and the process cabin is adjusted and fixed using a plurality of the connecting members in conjunction with the limiting holes;

[0021] Insert a wrench into the reserved hole, drive the wrench to force the adapter shaft to rotate, and use the positioning pin to pass through the vertical plate and insert it into the limiting groove;

[0022] Perform modal test of the current servo position;

[0023] After completing the modal test of the current steering gear rudder position, adjusting the first assembly structure, removing the positioning pin, and rotating the adapter shaft;

[0024] After adjusting the steering position of the steering gear and the process cabin, the modal test is continued until the modal test of the steering gear is completed.

[0025] In some embodiments, installing the steering gear into the process cabin includes:

[0026] Install the technical rudder surface into the servo from above.

[0027] In some embodiments, adjusting the first assembly structure includes:

[0028] The first assembly structure is adjusted to reduce the friction between the retaining ring and the adapter shaft until the adapter shaft can rotate.

[0029] In some embodiments, the adjusting the steering position of the steering gear and the process cabin comprises:

[0030] Rotate the process deck to above the steering gear and take out the process deck;

[0031] Rotate the adapter shaft to the next electric servo to be tested and rotate it above the servo;

[0032] Install the craft deck into the steering gear from above.

[0033] In order to solve the problems of the existing modal test tooling, such as large workload of repeated assembly and disassembly and low efficiency of modal testing, the present invention has the following advantages:

[0034] 1. The technical solution of the present invention can significantly improve the efficiency of changing the rudder position in the modal test of the electric servo.

[0035] 2. Through the technical solution of the present invention, the number of rotations of the electric servo is reduced during modal testing, thereby preventing the problem of appearance scratches on the electric servo caused by rotation in the process chamber, and improving the appearance quality of the product.

[0036] 3. Through the technical solution of the present invention, the number of times the electric servo is used for the mounting threaded hole connected to the process cabin during modal testing is reduced, thereby improving the reliability and service life of the servo thread.

[0037] 4. Through the technical solution of the present invention, the rotation angle of the servo can be simply positioned, the insufficient rigidity during measurement and the stuck phenomenon of the via during measurement can be eliminated, and the accuracy of the modal test can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A schematic diagram of the rotor assembly structure is shown;

[0039] Figure 2 A schematic cross-sectional view of the rotor assembly structure is shown;

[0040] Figure 3 A schematic diagram of the cross-sectional structure of a quick clamping device is shown;

[0041] Figure 4 The right side view of the quick clamping device structure is shown;

[0042] Figure 5 A cross-sectional view of the shaft assembly structure is shown;

[0043] Figure 6 A schematic diagram of the limiting hole structure is shown.

[0044] Figure markings: 100-vertical plate assembly; 110-vertical plate; 111-accommodating hole; 120-long plate rib; 130-bottom plate; 200-rotor assembly; 210-connecting ring; 220-rolling member; 230-groove; 240-fastener; 250-third assembly structure; 251-fourth assembly structure; 300-rotating shaft assembly; 310-retaining ring; 320-adapting shaft; 330-locating pin; 321-limiting part; 322-locating part; 323-first step surface; 324-accommodating cavity; 325-limiting hole; 326-limiting groove; 327-reserved hole; 328-first assembly structure; 311-second assembly structure. DETAILED DESCRIPTION

[0045] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0046] As used herein, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like is based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate an orientation or position relationship, some of the above terms may also be used to indicate other meanings, such as the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances. In addition, the terms "install", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0047] In the present invention, the electric servo to be tested is a working mechanism of one servo with four rudder surfaces, and each rudder position needs to be subjected to modal testing. When the modal test of the electric servo of this model is performed using the existing modal testing tooling, after the test of one rudder position of one product is completed, the rudder surface must be removed from the servo first, and then the servo must be completely removed from the modal testing tooling, rotated 90°, and then the servo must be reinstalled on the modal tooling, and then the rudder surface must be installed on the servo before the next rudder position modal test can be carried out. A servo needs to be assembled and disassembled 4 times to complete the modal test project without adjustment. The process is as follows: since 4 screws are required to fix the rudder surface to the servo, 6 screws are required to fix each rudder position to fix the servo on the debugging rudder cabin, and 24 screws are required to fix 4 rudder positions. After the modal test of one rudder position is completed, the 4 screws on the rudder surface must be removed first, and then the rudder surface is removed from the servo, and then the 24 screws of the 4 rudder positions of the servo are removed, and the servo is rotated 90° in the debugging rudder cabin to another rudder position, and the 24 screws of the 4 rudder positions are used to fasten the servo to the debugging rudder cabin, and then the rudder surface is installed, and the rudder surface is fastened to the servo with 4 screws, and the modal test of the next rudder position is started according to the above method. It takes 28 screws to complete the modal test of one rudder position, and it takes 84 screws to complete the installation and removal of the rudder position replacement to complete the modal test of one servo / time. The workload is large and it also requires high-intensity physical labor. The above reasons lead to the low efficiency of modal testing using existing technologies, which becomes one of the main bottlenecks restricting the smooth development of production.

[0048] In a first aspect of the present invention, this embodiment discloses a quick clamping device for modal testing of an electric servo, such as Figures 1 to 6 As shown, including:

[0049] A vertical plate 110 assembly 100, wherein the vertical plate 110 assembly 100 has a transversely penetrating receiving hole 111;

[0050] A rotor assembly 130, the rotor assembly 130 is placed in the receiving hole 111, the rotor assembly 130 comprises a connecting ring 210 and a plurality of rolling elements 220 movably disposed on the connecting ring 210, the plurality of rolling elements 220 rotate relative to the connecting ring 210 along the axial direction of the connecting ring 210, and along the radial direction of the connecting ring 210, the outermost sides of the plurality of rolling elements 220 abut against the inner peripheral wall surface of the receiving hole 111;

[0051] The rotating shaft assembly 300 includes a retaining ring 310 and an adapter shaft 320. The adapter shaft 320 has a positioning portion 322 and a limiting portion 321 extending horizontally along one side of the positioning portion 322. The outer diameter of the positioning portion 322 is smaller than the outer diameter of the limiting portion 321. The limiting portion 321 forms a first step surface 323 toward the side where the positioning portion 322 is located. Along the radial direction of the connecting ring 210, the outer surface of the positioning portion 322 abuts against the innermost side of the plurality of rolling elements 220. The first step surface 323 abuts against one side of the connecting ring 210. The end surface of the positioning portion 322 away from the limiting portion 321 is provided with a first assembly structure 328. The limiting portion 321 is concavely provided with a receiving cavity 324 on the side away from the positioning portion 322. The receiving cavity 324 is used to accommodate an electric steering gear.

[0052] The retaining ring 310 is provided with a second assembly structure 311 along the horizontal direction. The second assembly structure 311 is detachably fixedly connected to the first assembly structure 328 . The retaining ring 310 limits the connection ring 210 in the receiving hole 111 .

[0053] In some embodiments, the rotor assembly 130 further includes a fastener 240;

[0054] Along the axial direction of the connecting ring 210, a plurality of grooves 230 are provided on the connecting ring 210, and a plurality of the rolling elements 220 are placed one by one in one of the grooves 230. A third assembly structure 250 is also provided on the connecting ring 210 at the side where the groove 230 is located, and the third assembly structure 250 is staggered with the groove 230.

[0055] The fastener 240 is provided with a fourth assembly structure 251 , and the fourth assembly structure 251 is detachably fixedly connected to the third assembly structure 250 . The fastener 240 limits the rolling element 220 in the groove 230 .

[0056] In some embodiments, the vertical plate 110 assembly 100 specifically includes: a vertical plate 110, a bottom plate and a long plate rib 120;

[0057] The first side of the long plate rib 120 is fixed to the bottom plate, and the second side of the long plate rib 120 is fixed to the vertical plate 110 . The vertical plate 110 is provided with the accommodating hole 111 , and the accommodating hole 111 is staggered with the long plate rib 120 .

[0058] In some embodiments, the shaft assembly 300 further includes a positioning pin 330;

[0059] Along the radial direction of the connecting ring 210 , a limiting groove 326 is concavely formed on the outer peripheral surface of the limiting portion 321 , and the limiting groove 326 communicates with the limiting portion 321 on the side where the first step surface 323 is located;

[0060] The positioning pin 330 passes through the vertical plate 110 and is inserted into the limiting groove 326 .

[0061] In some embodiments, along the radial direction of the connecting ring 210, a plurality of limiting holes 325 are recessed on the outer peripheral surface of the limiting portion 321, and the plurality of limiting holes 325 are arranged away from the first step surface 323. The limiting holes 325 cooperate with the connecting piece to adjust and fix the electric servo.

[0062] In some embodiments, along the radial direction of the connecting ring 210 , a plurality of reserved holes 327 are recessed on the outer circumferential surface of the limiting portion 321 , and the reserved holes 327 are used to insert a wrench to rotate the rotating shaft assembly 300 .

[0063] In this embodiment, a quick clamping device for modal testing of an electric servo is proposed, which includes three parts: a vertical plate 110 assembly 100, a rotor assembly 130, and a shaft assembly 300. The vertical plate 110 assembly 100 is used to support the shaft assembly 300 that drives the electric servo and is fixed on a platform, which is preferably a cast iron platform; the shaft assembly 300 is used to fix the process cabin and realize quick clamping during the modal testing of the servo; the rotor assembly 130 is used to realize the quick rotation of the shaft assembly 300 on the vertical plate 110 assembly 100. The rotor assembly 130 is installed between the vertical plate 110 assembly 100 and the shaft assembly 300, and is connected in a detachable manner, and the specific connection method is preferably a practical screw connection.

[0064] Specifically, Figure 3 As shown, the vertical plate 110 assembly 100 includes a vertical plate 110, two long plate ribs 120 and a bottom plate. The long plate ribs 120 are fixedly connected to the bottom plates on two opposite sides of the bottom plate, the vertical plate 110 is fixedly connected to the other side of the bottom plate and is also fixedly connected to the two long plate ribs 120, and the bottom plate is detachably connected to the platform.

[0065] Specifically, the fixing connection method of the vertical plate 110, the long plate ribs 120 and the bottom plate is preferably welding, and can also be clamping or screw connection. The purpose is to ensure that the stiffness of the vertical plate 110 assembly 100 is greater than the modal stiffness of the servo and will not affect the modal test of the electric servo.

[0066] Specifically, the vertical plate 110 also has a transversely penetrating accommodating hole 111, and the inner peripheral wall surface of the accommodating hole 111 abuts against the outer side of the rolling element 220 of the rotor assembly 130, so that the process chamber is fixed in the accommodating cavity 324 and abuts against the inner side of the rotor assembly 130, and when there is no fixation in the axial direction, the process chamber can perform axial rotation of the accommodating hole 111.

[0067] Specifically, Figure 1 and Figure 2 As shown, the rotor assembly 130 includes a connecting ring 210, a fastener 240 and a plurality of rolling elements 220. The connecting ring 210 is provided with a plurality of grooves 230, the number of which is equal to the number of the rolling elements 220, and the rolling elements 220 are placed in the grooves 230 one by one. A third assembly structure 250 is also provided between the grooves 230 on the connecting ring 210, which cooperates with the fourth assembly structure 251 on the fastener 240 to restrict the rolling elements 220 in the grooves 230 of the connecting ring 210.

[0068] Specifically, the outer diameter of the rolling element 220 is slightly larger than the radial width of the connecting ring 210, so that the rolling element 220 is partially exposed from the groove 230 when placed in the groove 230, thereby achieving the purpose of allowing the process chamber abutting against the inner side of the rolling element 220 to rotate.

[0069] Specifically, the rolling element 220 is preferably a cylindrical ring. When the rolling element 220 is a cylindrical ring, a pin of a certain size needs to be inserted into the center hole of the cylindrical ring, and the two ends of the pin abut against the connecting ring 210 and the fastener 240 to limit the rolling direction of the cylindrical ring.

[0070] Specifically, the rolling element 220 may be a solid or hollow roller. When the rolling element 220 is a solid or hollow roller, the diameter of the roller needs to be designed according to the axial length, width and radial depth of the groove 230, so that the radial length is slightly larger than the roller diameter, the radial width is slightly smaller than the roller diameter, and the axial depth is slightly larger than the roller diameter, so that the roller can roll flexibly in the groove 230. For example, if the radius of the roller is 10 mm, the radial length of the groove 230 may be 10.5 mm, the radial width may be 9.0 mm, and the axial depth may be 10.5 mm.

[0071] Specifically, the third assembly structure 250 and the fourth assembly structure 251 can be a set of screws and screw holes, or a set of screws and nuts, the purpose of which is to restrict the rolling element 220 in the groove 230 without affecting the radial rotation of the rolling element 220 along the accommodating hole 111.

[0072] Specifically, in order to ensure the stability of the structure, the third assembly structure 250 and the fourth assembly structure 251 may be further glued to make the structure more stable.

[0073] Specifically, Figure 3 and Figure 5 As shown, the shaft assembly 300 includes a transfer shaft 320, a positioning pin 330, and a retaining ring 310. The shaft assembly 300 includes a limiting portion 321 and a positioning portion 322, and a receiving cavity 324 is concavely disposed on the side of the limiting portion 321 away from the positioning portion 322. The outer diameter of the positioning portion 322 is smaller than the outer diameter of the limiting portion 321, so a first step surface 323 is formed at the connection between the positioning portion 322 and the limiting portion 321. A first assembly structure 328 is further provided on the end face of the adapter shaft 320 on the side where the positioning portion 322 is away from the limiting portion 321, and the first assembly structure 328 is detachably fixedly connected to the second assembly structure 311 on the retaining ring 310 to restrict the rotor assembly 130 in the accommodating hole 111. In layman's terms, the retaining ring 310 and the adapter shaft 320 cooperate with the first assembly structure 328 and the second assembly structure 311 to squeeze and fix the rotor assembly 130 on the accommodating hole 111 of the vertical plate 110 along the radial direction of the accommodating hole 111.

[0074] Specifically, along the radial direction of the connecting ring 210, a limiting groove 326 is provided on the outer peripheral surface of the limiting portion 321 of the connecting shaft, which is used to limit the positioning pin 330 of the rotating shaft assembly 300, and its purpose is to limit the rotation angle of the electric servo when performing modal testing. The limiting groove 326 can be connected, or it can be connected only along the side where the first step surface 323 is located. When the electric servo needs to be fixed to a certain steering position, the positioning pin 330 is inserted from one side of the retaining ring 310 of the vertical plate 110, through the vertical plate 110, and inserted into the limiting groove 326, so that the rotating shaft assembly 300 is fixed and cannot continue to rotate.

[0075] Specifically, the accommodating cavity 324 of the adapter shaft 320 may be a through-going or non-through-going arrangement, and the accommodating cavity 324 is used to fix a process cabin for installing the electric servo.

[0076] Specifically, along the radial direction of the connecting ring 210, a plurality of limiting holes 325 are concavely formed on the outer peripheral surface of the limiting portion 321, and the limiting holes 325 are away from the first step surface 323, and are used to adjust and fix the electric servo placed in the accommodating cavity 324. The adjustment and fixing method may be to use a pin to pass through the limiting hole 325 to abut against the process cabin, or the limiting hole 325 may be set as a threaded hole and abut against the process cabin using a screw.

[0077] Specifically, when performing a modal test of a certain rudder position of an electric servo, data abnormalities were found. After multiple inspections, it was found that this might be due to a certain deviation when the electric servo was fixed in the process cabin, so that the rudder position of the electric servo was not kept horizontal or vertical. At this time, if the test is stopped and readjusted, a lot of time will be wasted for disassembly and reassembly. By adjusting the limit hole 325, a deviation in the opposite direction of the rudder position of the electric servo is provided to compensate for the deviation of the electric servo fixed in the process cabin. For example, when the electric servo is fixed in the process cabin, there is a visual deviation of negative 10 degrees in the vertical direction, and the lower end limit hole 325 is adjusted to make the process cabin have a deviation of about 10 degrees in the vertical direction to compensate for the deviation of the electric servo when it is fixed in the process cabin; if the electric servo rotates 180 degrees, then conversely, the process cabin has a deviation of negative 10 degrees in the vertical direction; similarly, if the electric servo rotates 90 degrees, the corresponding limit hole 325 is adjusted to compensate for its deviation.

[0078] Specifically, along the radial direction of the connecting ring 210, a plurality of reserved holes 327 are recessed on the outer peripheral surface of the limiting portion 321. The function of these reserved holes 327 is to insert a wrench. The rotation of the wrench drives the rotating shaft assembly 300 to rotate the process cabin, thereby achieving the purpose of rotating the steering position of the electric servo.

[0079] Specifically, by using the clamping device provided by the present invention, when performing modal testing on an electric servo, the original installation and removal of 84 screws is changed to installation and removal of 16 connecting devices, and tightening and loosening 32 fastening devices, which can greatly improve the work efficiency during modal testing of the electric servo.

[0080] In a second aspect of the present invention, a rapid clamping method for modal testing of an electric servo is provided, comprising:

[0081] Install the electric servo into the process cabin, fix the process cabin into the accommodating cavity 324, and use a plurality of the connecting members to cooperate with the limiting holes 325 to adjust and fix the process cabin;

[0082] Insert a wrench into the reserved hole 327, drive the wrench to force the adapter shaft 320 to rotate, and use the positioning pin 330 to pass through the vertical plate 110 and insert it into the limiting groove 326;

[0083] Perform modal test of the current servo position;

[0084] After completing the modal test of the current steering gear rudder position, adjust the first assembly structure 328, remove the positioning pin 330, and rotate the adapter shaft 320;

[0085] After adjusting the steering position of the steering gear and the process cabin, the modal test is continued until the modal test of the steering gear is completed.

[0086] In some embodiments, installing the steering gear into the process cabin includes:

[0087] Install the technical rudder surface into the servo from above.

[0088] In some embodiments, adjusting the first assembly structure 328 includes:

[0089] The first assembly structure 328 is adjusted to reduce the friction between the retaining ring 310 and the transfer shaft 320 until the transfer shaft 320 can rotate.

[0090] In some embodiments, the adjusting the steering position of the steering gear and the process cabin comprises:

[0091] Rotate the process deck to above the steering gear and take out the process deck;

[0092] Rotate the adapter shaft 320 to the next electric servo to be tested and rotate it above the servo;

[0093] Install the process deck into the steering gear from above.

[0094] In this embodiment, a method for rapid clamping of an electric servo modal test using the above device is proposed, comprising the following steps:

[0095] First, install the electric servo into the process cabin, and fix the process cabin into the accommodating cavity 324 of the shaft assembly 300, and use the limiting hole 325 to cooperate with the connector to adjust and tighten the process cabin. Secondly, insert the wrench into the reserved hole 327, drive the wrench, rotate the adapter shaft 320, make the rudder position of the electric servo reach the preset position, and then use the positioning pin 330 to fix the shaft assembly 300 to stop it from rotating. Then, perform the modal test of the first rudder position of the electric servo. After completing the modal test of the first rudder position, adjust the first assembly structure 328 so that the pressure of the retaining ring 310 and the adapter shaft 320 on the rotor assembly 130 along the axial direction of the connecting ring 210 becomes smaller, so that the shaft assembly 300 can rotate along the radial direction of the connecting ring 210, and fix the first assembly structure 328 after adjusting to the second rudder position of the electric servo, insert the positioning pin 330, and perform the modal test of the second rudder position. The above steps are repeated until the modal test of all rudder positions of the electric servo is completed.

[0096] Specifically, when installing the steering gear into the process cabin, the process rudder surface is installed into the steering gear from above, which can facilitate the installation and removal of the process rudder surface, further improve efficiency, and also facilitate installation and removal when problems occur.

[0097] Specifically, when adjusting the first assembly structure 328, it is only necessary to loosen the connection between the first assembly structure 328 and the second assembly structure 311, so that the pressure of the retaining ring 310 and the adapter shaft 320 on the rotor assembly 130 along the axial direction of the connecting ring 210 is reduced, so that the static friction between the rotor assembly 130 and the rotating shaft assembly 300 is reduced, and the rotating shaft assembly 300 can be rotated along the radial direction of the connecting ring 210. It is not necessary to completely disassemble the first assembly structure 328, which can improve the efficiency of converting the steering position of the electric servo to perform modal testing.

[0098] Specifically, when adjusting the steering position of the servo and the process cabin, the process cabin is turned to the top of the servo, the process cabin is taken out, the adapter shaft 320 is rotated until the steering position of the first electric servo to be tested faces upward, and the process cabin is installed into the servo from above.

[0099] To sum up, through the above-mentioned structural setting and corresponding method, the efficiency of changing the rudder position in the modal test of the electric servo can be significantly improved; the number of rotations of the electric servo during the modal test is reduced, and the problem of scratches on the appearance of the electric servo due to the rotation in the process cabin is eliminated, thereby improving the quality of product appearance; the number of times the electric servo is used for docking with the process cabin during the modal test is reduced, and the reliability and service life of the servo thread are improved; the rotation angle of the servo can be simply positioned, and insufficient rigidity and the phenomenon of through-hole jamming during measurement are eliminated, thereby improving the accuracy of the modal test.

[0100] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0101] In addition, it should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that those skilled in the art can understand.

Claims

1. A quick clamping device for modal testing of electric servos, characterized in that: include: A vertical plate assembly, wherein the vertical plate assembly has a accommodating hole extending transversely therethrough; A rotor assembly, the rotor assembly is placed in the receiving hole, the rotor assembly comprises a connecting ring and a plurality of rolling elements movably arranged on the connecting ring, the plurality of rolling elements rotate relative to the connecting ring along the axial direction of the connecting ring, and along the radial direction of the connecting ring, the outermost sides of the plurality of rolling elements abut against the inner peripheral wall surface of the receiving hole; A rotating shaft assembly, the rotating shaft assembly includes a retaining ring and an adapter shaft, the adapter shaft has a positioning portion and a limiting portion extending horizontally along one side of the positioning portion, the outer diameter of the positioning portion is smaller than the outer diameter of the limiting portion, the limiting portion is formed with a first step surface toward the side where the positioning portion is located, along the radial direction of the connecting ring, the outer surface of the positioning portion abuts against the innermost side of the plurality of rolling elements, the first step surface abuts against one side of the connecting ring, the end surface of the positioning portion away from the side where the limiting portion is located is provided with a first assembly structure, the limiting portion is recessed with an accommodating cavity on the side away from the positioning portion, and the accommodating cavity is used to accommodate an electric steering gear; The retaining ring is provided with a second assembly structure along the horizontal direction, the second assembly structure is detachably fixedly connected to the first assembly structure, and the retaining ring limits the connection ring to be located in the accommodating hole.

2. The quick clamping device for modal testing of an electric servo as claimed in claim 1, characterized in that: The rotor assembly also includes a fastener; Along the axial direction of the connecting ring, a plurality of grooves are arranged on the connecting ring, and a plurality of the rolling elements are placed one by one in one of the grooves. A third assembly structure is also arranged on the connecting ring at the side where the groove is located, and the third assembly structure is staggered with the groove; The fastener is provided with a fourth assembly structure, the fourth assembly structure is detachably fixedly connected to the third assembly structure, and the fastener limits the rolling element in the groove.

3. The quick clamping device for modal testing of an electric servo as claimed in claim 1, characterized in that: The vertical plate assembly specifically includes: a vertical plate, a bottom plate and long plate ribs; The first side of the long plate rib is fixed to the bottom plate, the second side of the long plate rib is fixed to the vertical plate, the vertical plate is provided with the accommodating hole, and the accommodating hole is staggered with the long plate rib.

4. The quick clamping device for modal testing of an electric servo as claimed in claim 1, characterized in that: The rotating shaft assembly also includes a positioning pin; Along the radial direction of the connecting ring, a limiting groove is concavely formed on the outer peripheral surface of the limiting portion, and the limiting groove communicates with the limiting portion on the side where the first step surface is located; The positioning pin passes through the vertical plate and is inserted into the limiting groove.

5. The quick clamping device for modal testing of electric servo as claimed in claim 4, characterized in that: Along the radial direction of the connecting ring, a plurality of limiting holes are concavely formed on the outer peripheral surface of the limiting portion, and the plurality of limiting holes are arranged away from the first step surface. The limiting holes cooperate with the connecting piece to adjust and fix the electric servo.

6. The quick clamping device for modal testing of electric servo as claimed in claim 4, characterized in that: Along the radial direction of the connecting ring, a plurality of reserved holes are concavely arranged on the outer peripheral surface of the limiting portion, and the reserved holes are used for inserting a wrench to rotate the rotating shaft assembly.

7. A rapid clamping method for modal testing of an electric servo, characterized in that: The method is applied to the clamping device according to any one of claims 1 to 6, and the method comprises: Installing the electric servo into the process cabin, fixing the process cabin into the accommodating cavity, and adjusting and fixing the process cabin using a plurality of the connecting members in conjunction with the limiting holes; Insert a wrench into the reserved hole, drive the wrench to force the adapter shaft to rotate, and use the positioning pin to pass through the vertical plate and insert it into the limiting groove; Perform modal test of the current servo position; After completing the modal test of the current steering gear rudder position, adjusting the first assembly structure, removing the positioning pin, and rotating the adapter shaft; After adjusting the steering position of the steering gear and the process cabin, the modal test is continued until the modal test of the steering gear is completed.

8. The rapid clamping method for modal testing of an electric servo as claimed in claim 7, characterized in that: The step of installing the steering gear into the process cabin comprises: Install the technical rudder surface into the servo from above.

9. The rapid clamping method for modal testing of an electric servo as claimed in claim 7, characterized in that: The adjusting the first assembly structure comprises: The first assembly structure is adjusted to reduce the friction between the retaining ring and the adapter shaft until the adapter shaft can rotate.

10. The quick clamping device for modal testing of electric servo as claimed in claim 1, characterized in that: The adjusting of the steering gear rudder position and the process cabin comprises: Rotate the process deck to above the steering gear and take out the process deck; Rotate the adapter shaft to the next electric servo to be tested and rotate it above the servo; Install the process deck into the steering gear from above.

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