Servo mechanism loading test flexible integrated automatic assembly and disassembly device

Abstract

The application relates to a servo mechanism loading test flexible integrated automatic assembly and disassembly device which comprises an adapter plate, a sleeve rod, a fastening bolt, a flexible connecting shaft, a first driving assembly, a guide sleeve, a second driving assembly, a support and a servo mechanism, the sleeve rod is inserted into the guide sleeve and is fixedly connected with the fastening bolt through the flexible connecting shaft, the other end of the sleeve rod is sleeved on the adapter plate, the other end of the fastening bolt is inserted into the table top and extends upwards, the first driving assembly drives the adapter plate to move in the vertical direction, a limiting structure is arranged in the guide sleeve, the second driving assembly drives the guide sleeve to rotate and drives the sleeve rod to rotate through the limiting structure, a through hole is arranged in the support, the other end of the fastening bolt is exposed outside the support through the through hole, a threaded interface is arranged at the bottom of the servo mechanism, the first driving assembly drives the sleeve rod to move upwards, drives the fastening bolt to ascend and contact with the threaded interface, the second driving assembly drives the guide sleeve to rotate, the fastening bolt is rotated and screwed into the threaded interface of the servo mechanism, and the assembly efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of aviation testing and experimental technology, and more specifically, to a flexible integrated automatic assembly and disassembly device for servo mechanism loading testing. Background Technology

[0002] To ensure product reliability and fully simulate the stress state during the production and development of servo mechanisms, extensive testing and experimentation are required. Load testing is a crucial method for verifying the load performance of servo mechanisms. Existing load testing equipment employed a purely mechanical structure design. During servo mechanism assembly and disassembly, the servo mechanism was manually connected to the load testing device and then manually tightened using bolts. This process, involving tightening the bolts on the load testing device into the external thread interface of the servo mechanism, resulted in uncontrolled torque and bolt movement distances. Excessive foreign matter and thread machining defects could easily damage the external thread interface of the servo mechanism, leading to its scrapping. Furthermore, because installation was primarily manual, the consistency of the servo mechanism's installation was difficult to guarantee, and installation efficiency was low. Summary of the Invention

[0003] To address the problem that existing servo mechanisms are mainly installed manually, resulting in inconsistent installation status and low installation efficiency, this invention provides a flexible integrated automatic assembly and disassembly device for servo mechanism loading testing.

[0004] In a first aspect, the present invention provides a flexible integrated automatic assembly and disassembly device for servo mechanism loading test, comprising:

[0005] A base, the base having a platform on top;

[0006] A first drive unit is fixed inside the base. The first drive unit has a first connecting component and a first drive component. The first connecting component has a transition plate, a sleeve rod, a fastening bolt, and a flexible coupling. One end of the sleeve rod is detachably and fixedly connected to the flexible coupling, and the other end of the sleeve rod is sleeved on the transition plate. One end of the fastening bolt is detachably and fixedly connected to the flexible coupling, and the other end of the fastening bolt extends through the platform and upward. The first drive component drives the transition plate to move in the vertical direction.

[0007] The second drive unit is fixed inside the base. The second drive unit has a second connecting component and a second drive component that drives the second connecting component to rotate in the vertical direction. The second connecting component has a guide sleeve. The sleeve rod extends through the guide sleeve and moves in the vertical direction. The guide sleeve is provided with a limiting structure. The guide sleeve drives the sleeve rod to rotate through the limiting structure.

[0008] A support is fixed to the platform. The support has a through hole in the vertical direction. A positioning sleeve is fitted inside the through hole at the top of the support. The other end of the fastening bolt passes through the positioning sleeve and is exposed outside the support.

[0009] A servo mechanism is placed on top of the support, and a guide component that cooperates with the positioning sleeve is provided at the bottom of the servo mechanism. The guide component has a threaded interface inside.

[0010] The first drive component drives the sleeve rod to move upward, causing the fastening bolt to rise and contact the threaded interface of the servo mechanism. The second drive component drives the guide sleeve to rotate, causing the fastening bolt to rotate and be screwed into the threaded interface of the servo mechanism.

[0011] In some embodiments, the flexible coupling is provided with a first flexible block, a second flexible block, a third flexible block, and a connecting strip in sequence along the vertical direction. The first flexible block has a first protrusion extending upward from its top, and the third flexible block has a second protrusion extending downward from its bottom. The second flexible block has a first groove recessed at its bottom and a second groove recessed at its top. The first groove and the second groove are offset along the axial direction of the second flexible block. One end of the connecting strip is movably connected to the first flexible block, and the other end of the connecting strip is movably connected to the third flexible block, such that the first protrusion moves relative to the second flexible block within the first groove, and the second protrusion moves relative to the second flexible block within the second groove. One end of the sleeve rod is detachably fixedly connected to the first flexible block, and one end of the fastening bolt is detachably fixedly connected to the third flexible block.

[0012] In some embodiments, along the radial direction of the second flexible block, there is a first gap between the first protrusion and the sidewall of the first groove, and a second gap between the second protrusion and the sidewall of the second groove.

[0013] In some embodiments, the first connecting assembly further includes a sleeve, a receiving member, an elastic member, and a ball bearing. The sleeve is fixed to the adapter plate and has an upward-facing receiving groove. The elastic member, the receiving member, and the ball bearing are sequentially placed in the receiving groove. One end of the elastic member abuts against the bottom of the receiving groove, and the other end of the elastic member abuts against the bottom of the receiving member. A first limiting groove is recessed at the top of the receiving member. The ball bearing is located within the first limiting groove, and a portion of the ball bearing is exposed outside the first limiting groove. The other end of the sleeve rod is located within the receiving groove, and a second limiting groove is recessed at the other end of the sleeve rod. The surface of the ball bearing exposed outside the first limiting groove contacts the inner side of the second limiting groove. A third gap exists between the other end of the sleeve rod and the top of the receiving member.

[0014] In some embodiments, the first drive assembly has a lifting cylinder fixed inside the base, the output end of the lifting cylinder is fitted with a flexible head, and the other end of the flexible head is fixed to the adapter plate.

[0015] In some embodiments, the second drive component includes a drive motor, the drive motor is fixed inside the base, and a drive wheel is sleeved on the output end of the drive motor;

[0016] The second connecting assembly further includes a driven wheel and a transmission belt. The driven wheel is fixed to the outer periphery of the guide sleeve, and the opposite ends of the transmission belt are respectively sleeved on the driving wheel and the driven wheel.

[0017] In some embodiments, the sleeve is recessed in the vertical direction with a guide groove, and the limiting structure extends into the guide groove and is slidably connected to the sleeve.

[0018] In some embodiments, the system further includes a position sensor, a torque sensor, and a control terminal. The position sensor is fixed to the adapter plate, the torque sensor is sleeved on the fastening bolt, and the control terminal is fixed to the base. The position sensor and the torque sensor are electrically connected to the control terminal, respectively.

[0019] In some embodiments, the system further includes a transmission unit, a pointer assembly, an angle encoder, an inertia block, a spring torsion plate, and a fixing assembly. The transmission unit includes a transmission shaft and two bearings. The support has a hollow area in the middle along the vertical direction. Positioning holes are passed through the support on opposite sides of the hollow area along the horizontal direction. The two bearings are respectively fixed in one of the positioning holes. One end of the transmission shaft passes through one of the bearings and is fixed with the angle encoder. The other end of the transmission shaft passes through the other bearing and is fixed with the inertia block. A connecting shaft is also fixed to the transmission shaft in the hollow area. The connecting shaft is positioned towards the side where the fastening bolt is located. The output shaft of the servo mechanism is detachably fixed to the connecting shaft through a connector.

[0020] One end of the spring torsion plate is fixed to the inertia block, and the other end of the spring torsion plate is disposed away from the inertia block along the axial direction of the transmission shaft. The other end of the spring torsion plate is fixed by the fixing component, which is fixed to the table surface.

[0021] The pointer assembly includes a pointer that can rotate with the drive shaft and a fixed dial. The pointer is fixed to the inertia block, and the dial is fixed to the support.

[0022] To address the problems of inconsistent installation and low efficiency caused by the manual installation of existing servo mechanisms, this invention offers the following advantages:

[0023] The technical solution of this invention utilizes a first drive assembly and a second drive assembly in conjunction with a fastening bolt to automatically screw the fastening bolt into the threaded interface of the servo mechanism, thereby completing automatic assembly.

[0024] By utilizing the special structural design of the flexible coupling, the first drive assembly can perform secondary alignment of the fastening bolt when driving it to rise. This ensures that the threaded interface of the fastening bolt and the servo mechanism are coaxial during the tightening process, reducing the introduction of abnormal installation torque.

[0025] By utilizing the special structural design of the flexible coupling, the axial movement gap of the flexible coupling can be compensated for once when the first drive component is pulled down, thereby ensuring that the threaded interface of the servo mechanism is not damaged by the thread of the product caused by the pull-down of the first drive component. Attached Figure Description

[0026] Figure 1 A schematic diagram of a flexible integrated automatic assembly and disassembly device for servo mechanism loading test is shown.

[0027] Figure 2 It shows Figure 1 The diagram shows a structural schematic of the servo mechanism loading test flexible integrated automatic assembly and disassembly device from another angle.

[0028] Figure 3 It shows Figure 1 The diagram shows a third-angle structural schematic of the servo mechanism loading test flexible integrated automatic assembly and disassembly device. Detailed Implementation

[0029] 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, and are not intended to imply any limitation on the scope of the disclosure.

[0030] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based 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 terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments and are not intended to limit the indicated devices, elements, or components to having a specific orientation or being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientations or positional relationships; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the terms "installed", "set up", "equipped with", "connected", and "linked" should be interpreted broadly. 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 a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, 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 or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0031] This embodiment discloses a flexible integrated automatic assembly and disassembly device for servo mechanism loading testing, such as... Figures 1 to 3 As shown, it includes a base 4, a first drive unit and a second drive unit fixed inside the base 4, a support 10 fixed to the top surface 25 of the base 4, and a servo mechanism.

[0032] In this embodiment, the first driving unit has a first connecting component and a first driving component. The first connecting component has an adapter plate 21, a sleeve rod 17, a fastening bolt 11, and a flexible coupling 7. One end of the sleeve rod 17 is detachably fixedly connected to the flexible coupling 7, and the other end of the sleeve rod 17 is sleeved on the adapter plate 21. One end of the fastening bolt 11 is detachably fixedly connected to the flexible coupling 7, and the other end of the fastening bolt 11 extends through the platform 25 and upwards. The first driving component drives the adapter plate 21 to move vertically. The second driving unit has a second connecting component and a second driving component that drives the second connecting component to rotate vertically. The second connecting component has a guide sleeve, and the sleeve rod 17 extends through the guide sleeve and moves vertically. The guide sleeve has a limiting structure, and the guide sleeve drives the sleeve rod 17 to rotate through the limiting structure. A vertical through hole extends through the support 10. A positioning sleeve 34 is fitted inside the through hole at the top of the support 10. The other end of the fastening bolt 11 passes through the positioning sleeve 34 and protrudes outside the support 10. The servo mechanism is placed on top of the support 10. A guide component that mates with the positioning sleeve 34 is located at the bottom of the servo mechanism. The guide component has a threaded interface inside. Specifically, the first drive component drives the sleeve 17 to move upward, causing the fastening bolt 11 to rise and contact the threaded interface of the servo mechanism. The second drive component drives the guide sleeve to rotate, causing the fastening bolt 11 to rotate and be screwed into the threaded interface of the servo mechanism. Through the above configuration, the first and second drive components can be used in conjunction with the fastening bolt 11 to automatically screw the fastening bolt 11 into the threaded interface of the servo mechanism, thereby completing automatic assembly. This solves the problem of inconsistent installation status and low installation efficiency caused by manual installation during the installation process.

[0033] Furthermore, a support column 35 is provided on the support 10, and the guide hole is provided inside the support column 35. The positioning sleeve 34 is installed on the support column 35, and the servo mechanism product is placed on the support column 35. The radial positioning of the servo mechanism product can be completed by providing a guide component at the bottom of the servo mechanism product that cooperates with the positioning sleeve 34, so as to ensure that the product does not shift during the assembly and disassembly process and affect the assembly and disassembly operation.

[0034] Furthermore, a bracket 33 is fixedly installed on the support 10 near the support column 35. This bracket 33 extends vertically upwards, and a clamping cylinder 12 is fixedly secured to the top of the bracket 33 with screws. The output shaft of the clamping cylinder 12 is fixedly connected to a pressure head 31. When the servo mechanism product is placed on the support column 35, the clamping cylinder 12 can be driven to move the pressure head 31 and press it downwards, thus pressing the product and fixing it vertically. In this application, the clamping cylinder 12 can be used to clamp the product, ensuring that the product does not shake or shift during the lifting action.

[0035] In this embodiment, the servo mechanism loading test flexible integrated automatic assembly and disassembly device has a support plate 5 installed inside the base 4. The support plate 5 is fixed to the bottom of the platform 25 by four support rods 8. The platform 25 has three first through holes and three second through holes. Each of the first and second through holes is fitted with a ball bearing.

[0036] Furthermore, the first drive assembly includes a lifting cylinder 24 and a flexible head 23. The main body of the lifting cylinder 24 is mounted on the bottom of the support plate 5 via four fixing rods 3, and the other side of the main body of the lifting cylinder 24 is suspended. The flexible head 23 is sleeved on the output end of the lifting cylinder 24, and the other end of the flexible head 23 is fixed to the bottom of the adapter plate 21 by a screw-locking connection. The flexible head 23 is made of a flexible material and has a left-right swinging flexible effect. When the lifting cylinder 24 lifts, the left-right swinging flexible effect of the flexible head 23 can be used to initially correct the coaxiality difference between the fastening bolt 11 and the thread interface of the servo mechanism product caused by processing and installation.

[0037] Furthermore, the top of the adapter plate 21 is fixed with three sleeves 20, each sleeve 20 having an upward-facing receiving groove. Each receiving groove contains a spring element, a receiving element, and a ball bearing in sequence. Inside each receiving groove, one end of the spring element abuts against the bottom of the receiving groove, and the other end abuts against the bottom of the receiving element. The top of the receiving element has a first limiting groove recessed, causing the ball bearing to be located within the first limiting groove, with a portion of the ball bearing exposed outside the first limiting groove. In this application, the first drive assembly has three sleeve rods 17, the other end of each sleeve rod 17 located within one of the receiving grooves. The other end of each sleeve rod 17 has a second limiting groove recessed, causing the surface of the ball bearing exposed outside the first limiting groove to contact the inner side of the second limiting groove, thereby creating a third gap between the other end of the sleeve rod 17 and the top of the receiving element. In this application, through the above-mentioned configuration, the sleeve 20 and the sleeve rod 17 are connected by a hole and shaft. When the lifting cylinder 24 returns to the initial zero position, the sleeve rod 17 slides axially within the sleeve 20. The sleeve rod 17 is connected to the fastening bolt 11 through the flexible coupling 7, and therefore is not subject to the pulling force of the sleeve 20 with the lifting cylinder 24, thus solving the problem of damage to the product interface threads due to abnormal pulling force during abnormal execution. At the same time, an elastic element is installed inside the sleeve 20, so that when the lifting cylinder 24 drives the fastening bolt 11 to rise and contact the threaded interface of the servo mechanism, if the lifting cylinder 24 continues to rise, the thrust of the lifting cylinder 24 driving the fastening bolt 11 to rise acts on the threaded interface end face of the servo mechanism, and the resulting reaction force can compress the elastic element, thereby playing a buffering role and further reducing the problem of damage to the product threaded interface due to abnormal execution during installation. In this application, because ball bearings are provided between the receiving component and the sleeve rod 17, the receiving component and the sleeve rod 17 can roll over with the ball bearings during operation of the lifting cylinder 24, further reducing wear. Simultaneously, since the ball bearings can roll within the space formed by the first and second limiting grooves, the sleeve rod 17 can also rotate axially, further aligning the bolt fastening position. The elastic element can be a compression spring.

[0038] Furthermore, a pressure sensor can be installed on the elastic element. During installation, when the data value of the pressure sensor changes significantly, it is because the fastening bolt 11 rises and contacts the threaded interface of the servo mechanism. If the lifting cylinder 24 continues to work upward, the pressure exerted by the fastening bolt 11 on the threaded interface end face of the servo mechanism increases, thereby increasing the reaction force. This reaction force forces the elastic element to continue compressing, resulting in a significant increase in the detected value on the pressure sensor. In this application, since the end of the sleeve 17 abuts against the receiving member in the vertical direction, the elastic element is always in a preliminary compressed state. Therefore, when the lifting cylinder 24 is working, the detected data value of the pressure sensor will show a slight change, which is within the normal vertical range. This normal data range is no more than one-fiftieth of the data value.

[0039] Furthermore, the flexible coupling 7 comprises three parts, each of which is connected to one of the sleeve rods 17 and one fastening bolt 11. Each flexible coupling 7 is vertically arranged with a first flexible block, a second flexible block, a third flexible block, and a connecting strip 9 arranged sequentially upwards. The first flexible block has three first protrusions extending upwards from its top, and the third flexible block has three second protrusions extending downwards from its bottom. The second flexible block has three first grooves recessed at its bottom and three second grooves recessed at its top. One end of the connecting strip 9 is movably connected to the first flexible block, and the other end is movably connected to the third flexible block, such that each first protrusion is located within one of the first grooves and can move relative to the second flexible block, and each second protrusion is located within one of the second grooves and can move relative to the second flexible block. One end of the sleeve rod 17 is detachably fixedly connected to the first flexible block, and one end of the fastening bolt 11 is detachably fixedly connected to the third flexible block. In this application, through the above-mentioned configuration, to ensure that the product threads are not damaged by the downward pull of the lifting cylinder 24 during the disassembly process, a distance compensation is provided when the lifting cylinder 24 pulls down by means of the gap movement between the first and second flexible blocks and the gap movement between the second and third flexible blocks in the flexible coupling 7. Simultaneously, by connecting the first and third flexible blocks on the flexible coupling 7 using a connecting strip 9 and screws, a certain distance compensation is provided through the holes at both ends of the connecting strip 9, ensuring that the three flexible blocks of the flexible coupling 7 do not fall off. In this application, the inner diameter of the holes at both ends of the connecting strip 9 is larger than the diameter of the screw, allowing the first flexible block to move vertically relative to the second flexible block within the first groove via the first protrusion, and the third flexible block to move vertically relative to the second flexible block within the second groove via the second protrusion. In this application, the connection between the connecting strip 9 and the first flexible block and the third flexible block can also be achieved by providing a guide hole in the connecting strip 9, which extends vertically so that the nuts or screws connected to the first flexible block and the third flexible block all pass through the guide hole. However, the connection between the connecting strip 9 and the first flexible block and the third flexible block can also be achieved through other feasible solutions, and this application is not limited to these.

[0040] Furthermore, the first groove and the second groove are staggered along the axial direction of the second flexible block, which allows the thickness of the second flexible block in the vertical direction to be shortened while ensuring sufficient overall structural strength, so as to meet the design requirements of lightweight flexible coupling 7.

[0041] Furthermore, along the radial direction of the second flexible block, there is a first gap between the first protrusion and the sidewall of the first groove, and a second gap between the second protrusion and the sidewall of the second groove. Through this structural arrangement, secondary alignment of the fastening bolt 11 can be achieved, thereby ensuring that the fastening bolt 11 is coaxially aligned with the product thread interface during the tightening process, reducing the abnormal introduction of installation torque.

[0042] Furthermore, the second drive assembly includes three drive motors 22, each of which is fastened to the bottom of the support plate 5 with screws, and the other side of each drive motor 22 is suspended. The output shaft of each drive motor 22 passes through a second through hole and is sleeved with a ball bearing, allowing the output shaft of the drive motor 22 to rotate relative to the support plate 5. Each drive motor 22's output shaft is fitted with a drive wheel 18.

[0043] Furthermore, the second connecting assembly also includes three driven wheels 6, three transmission belts 19, and three guide sleeves. Each driven wheel 6 is fixed to the outer periphery of one of the guide sleeves. Each guide sleeve passes through a first through hole and is sleeved with a ball bearing. The opposite ends of each transmission belt 19 are respectively sleeved on one driving wheel 18 and one driven wheel 6, thereby enabling the guide sleeve to rotate relative to the support plate 5. Each sleeve rod 17 extends into one of the guide sleeves and moves vertically. The sleeve rod 17 and the guide sleeve are in clearance fit. A limiting structure is also provided inside the guide sleeve. A guiding structure extends vertically from the sleeve rod 17. The limiting structure and the guiding structure are slidably fitted, allowing the sleeve rod 17 to move vertically within the guide sleeve. Furthermore, the guide sleeve can also drive the sleeve rod 17 to rotate via the limiting structure. In this application, the guiding structure can be a guide groove recessed in the vertical direction, and the limiting structure can be a guide portion protruding inward along the radial direction of the guide sleeve from the inner circumferential sidewall. The guide portion extends into the guide groove so that when the sleeve rod 17 moves in the vertical direction, the guide portion can move relative to the sleeve rod 17 within the guide groove. When the drive motor 22 drives the guide sleeve to rotate, the guide sleeve abuts against the inner sidewall of the guide groove through the guide portion, forcing the sleeve rod 17 to rotate. In this application, the guiding structure and limiting structure can also be a slide rail and a slider, as well as other feasible related mating structures that slide and rotate in the vertical direction. This application is not limited to these.

[0044] Furthermore, the servo mechanism loading test flexible integrated automatic assembly and disassembly device also includes a position sensor 2, a torque sensor 15, and a control terminal 16. The control terminal 16 is fixed to the base 4. The position sensor 2 is fastened to the adapter plate 21 via a support frame and screws, and is electrically connected to the control terminal 16. There are three torque sensors 15, each fitted onto one of the fastening bolts 11, and each torque sensor 15 is electrically connected to the control terminal 16. Through this setup, during the tightening process, the position sensor 2 and torque sensor detect and control the tightening distance and torque value of the three fastening bolts 11. Combined with the three-stage control of the drive motor 22's speed and torque output value, each stage has a set start distance value, end distance value, and torque value. During operation, the device executes corresponding speed, start, and end operations according to the set start distance, end distance, and torque values ​​for each stage.

[0045] Furthermore, the servo mechanism loading test flexible integrated automatic assembly and disassembly device also includes a transmission unit, a pointer 30 assembly, an angle encoder 14, an inertia block 29, a spring torsion plate 27, and a fixing assembly 26.

[0046] The transmission unit includes a drive shaft and two bearings. In this application, a hollow area is vertically penetrating the middle of the support 10. Positioning holes are horizontally penetrating on both sides of the hollow area of ​​the support 10. The two bearings are respectively fixed in one of the positioning holes, so that one end of the drive shaft passes through one of the positioning holes, is fitted with the bearing, extends outward, and is fixed with an angle encoder 14. The other end of the drive shaft passes through the other positioning hole, is fitted with the bearing, extends outward, and is fixed with an inertia block 29. This allows the drive shaft to rotate relative to the support 10 when fitted on the support 10 and through the two bearings. The drive shaft is also fixed to a connecting shaft in the hollow area. The connecting shaft extends toward the side where the three fastening bolts 11 are located, so that when the servo mechanism is placed on the top of the support 10, the output shaft of the servo mechanism can be detachably fixed to the connecting shaft through the connector. When the servo mechanism needs to be tested, the output shaft of the servo mechanism can be moved by driving the servo mechanism, thereby driving the connecting shaft to rotate around the axis of the drive shaft, so that the drive shaft rotates relative to the support 10, thereby enabling the angle encoder 14 to collect and decode the detection data.

[0047] Furthermore, one end of the spring torsion plate 27 is fastened to the inertia block 29 by a pressure block 28 and screws, so that the other end of the spring torsion plate 27 is positioned away from the inertia block 29 along the axial direction of the drive shaft; the other end of the spring torsion plate 27 is also fastened to the fixing assembly 26 by a pressure block 28 and screws, and the fixing assembly 26 is connected to the table surface 25 by screws. The pointer 30 assembly includes a pointer 30 that can rotate with the drive shaft and a fixed dial 13. In this application, the pointer 30 is fixed to the inertia block 29, and the dial 13 is fixed to the support 10. With the above structural configuration, after the tightening action is completed, during product testing, the load torque and rudder deflection angle detection requirements of the product testing process are provided by components such as the spring torsion plate 27 and the inertia block 29. The fixing assembly 26 is a commonly used fixing structure, such as a vertically arranged fixing plate. Inertia block 29 is a device used to increase the inertia of a mechanical system. It is typically installed on rotating equipment, such as motors and robotic arms, to improve the system's response speed and vibration resistance. By increasing the system's moment of inertia, it provides greater torque during startup and shutdown, enabling the mechanical equipment to reach the required speed and accuracy more quickly. Therefore, it is not described in detail herein.

[0048] In summary, to address the problems of inconsistent installation and low efficiency caused by the manual installation process in existing servo mechanisms, this invention offers the following advantages:

[0049] The technical solution of this invention utilizes a first drive assembly and a second drive assembly in conjunction with a fastening bolt to automatically screw the fastening bolt into the threaded interface of the servo mechanism, thereby completing automatic assembly.

[0050] By utilizing the special structural design of the flexible coupling, the first drive assembly can perform secondary alignment of the fastening bolt when driving it to rise. This ensures that the threaded interface of the fastening bolt and the servo mechanism are coaxial during the tightening process, reducing the introduction of abnormal installation torque.

[0051] By utilizing the special structural design of the flexible coupling, the axial movement gap of the flexible coupling can be compensated for once when the first drive component is pulled down, thereby ensuring that the threaded interface of the servo mechanism is not damaged by the thread of the product caused by the pull-down of the first drive component.

[0052] 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 invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0053] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A flexible integrated automatic assembly and disassembly device for servo mechanism loading test, characterized in that, include: A base, the base having a platform on top; A first drive unit is fixed inside the base. The first drive unit has a first connecting component and a first drive component. The first connecting component has a transition plate, a sleeve rod, a fastening bolt, and a flexible coupling. One end of the sleeve rod is detachably and fixedly connected to the flexible coupling, and the other end of the sleeve rod is sleeved on the transition plate. One end of the fastening bolt is detachably and fixedly connected to the flexible coupling, and the other end of the fastening bolt extends through the platform and upward. The first drive component drives the transition plate to move in the vertical direction. The second drive unit is fixed inside the base. The second drive unit has a second connecting component and a second drive component that drives the second connecting component to rotate in the vertical direction. The second connecting component has a guide sleeve. The sleeve rod extends through the guide sleeve and moves in the vertical direction. The guide sleeve is provided with a limiting structure. The guide sleeve drives the sleeve rod to rotate through the limiting structure. A support is fixed to the platform. The support has a through hole in the vertical direction. A positioning sleeve is fitted inside the through hole at the top of the support. The other end of the fastening bolt passes through the positioning sleeve and is exposed outside the support. A servo mechanism is placed on top of the support, and a guide component that cooperates with the positioning sleeve is provided at the bottom of the servo mechanism. The guide component has a threaded interface inside. The first drive component drives the sleeve rod to move upward, causing the fastening bolt to rise and contact the threaded interface of the servo mechanism. The second drive component drives the guide sleeve to rotate, causing the fastening bolt to rotate and be screwed into the threaded interface of the servo mechanism.

2. The servo mechanism loading test flexible integrated automatic assembly and disassembly device as described in claim 1, characterized in that, The flexible coupling is provided with a first flexible block, a second flexible block, a third flexible block, and a connecting strip in sequence along the vertical direction. The first flexible block has a first protrusion extending upward from its top, and the third flexible block has a second protrusion extending downward from its bottom. The second flexible block has a first groove recessed at its bottom and a second groove recessed at its top. The first groove and the second groove are offset along the axial direction of the second flexible block. One end of the connecting strip is movably connected to the first flexible block, and the other end of the connecting strip is movably connected to the third flexible block, so that the first protrusion moves relative to the second flexible block within the first groove, and the second protrusion moves relative to the second flexible block within the second groove. One end of the sleeve rod is detachably fixedly connected to the first flexible block, and one end of the fastening bolt is detachably fixedly connected to the third flexible block.

3. The servo mechanism loading test flexible integrated automatic assembly and disassembly device as described in claim 2, characterized in that, Along the radial direction of the second flexible block, there is a first gap between the first protrusion and the sidewall of the first groove, and a second gap between the second protrusion and the sidewall of the second groove.

4. The servo mechanism loading test flexible integrated automatic assembly and disassembly device as described in claim 1, characterized in that, The first connecting assembly further includes a sleeve, a receiving member, an elastic member, and a ball bearing. The sleeve is fixed to the adapter plate and has an upward-facing receiving groove. The elastic member, the receiving member, and the ball bearing are sequentially placed in the receiving groove. One end of the elastic member abuts against the bottom of the receiving groove, and the other end of the elastic member abuts against the bottom of the receiving member. The top of the receiving member is recessed with a first limiting groove. The ball bearing is located within the first limiting groove, and a portion of the ball bearing is exposed outside the first limiting groove. The other end of the sleeve rod is located within the receiving groove, and the other end of the sleeve rod is recessed with a second limiting groove. The surface of the ball bearing exposed outside the first limiting groove contacts the inner side of the second limiting groove. A third gap exists between the other end of the sleeve rod and the top of the receiving member.

5. The servo mechanism loading test flexible integrated automatic assembly and disassembly device as described in claim 1, characterized in that, The first drive assembly has a lifting cylinder, which is fixed inside the base. A flexible head is sleeved on the output end of the lifting cylinder, and the other end of the flexible head is fixed to the adapter plate.

6. The servo mechanism loading test flexible integrated automatic assembly and disassembly device as described in claim 5, characterized in that, The second drive component includes a drive motor, which is fixed inside the base, and a drive wheel is sleeved on the output end of the drive motor; The second connecting assembly further includes a driven wheel and a transmission belt. The driven wheel is fixed to the outer periphery of the guide sleeve, and the opposite ends of the transmission belt are respectively sleeved on the driving wheel and the driven wheel.

7. The servo mechanism loading test flexible integrated automatic assembly and disassembly device as described in claim 1, characterized in that, The sleeve rod is recessed with a guide groove in the vertical direction, and the limiting structure extends into the guide groove and is slidably connected to the sleeve rod.

8. The servo mechanism loading test flexible integrated automatic assembly and disassembly device as described in claim 1, characterized in that, It also includes a position sensor, a torque sensor and a control terminal. The position sensor is fixed on the adapter plate, the torque sensor is sleeved on the fastening bolt, and the control terminal is fixed on the base. The position sensor and the torque sensor are respectively electrically connected to the control terminal.

9. The servo mechanism loading test flexible integrated automatic assembly and disassembly device as described in claim 1, characterized in that, It also includes a transmission unit, a pointer assembly, an angle encoder, an inertia block, a spring torsion plate, and a fixing assembly. The transmission unit includes a transmission shaft and two bearings. The support has a hollow area in the middle along the vertical direction. The support has positioning holes in the horizontal direction on opposite sides of the hollow area. The two bearings are respectively fixed in one of the positioning holes. One end of the transmission shaft passes through one of the bearings and is fixed with the angle encoder. The other end of the transmission shaft passes through the other bearing and is fixed with the inertia block. A connecting shaft is also fixed to the transmission shaft in the hollow area. The connecting shaft is positioned facing the side where the fastening bolt is located. The output shaft of the servo mechanism is detachably fixed to the connecting shaft through a connector. One end of the spring torsion plate is fixed to the inertia block, and the other end of the spring torsion plate is disposed away from the inertia block along the axial direction of the transmission shaft. The other end of the spring torsion plate is fixed by the fixing component, which is fixed to the table surface. The pointer assembly includes a pointer that can rotate with the drive shaft and a fixed dial. The pointer is fixed to the inertia block, and the dial is fixed to the support.

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