A tooling fixture for testing

Abstract

This invention discloses a testing fixture, comprising a base, telescopic rods, a support platform, a rotating mechanism, a lifting mechanism, a testing platform, a support column, a controller, and a clamping mechanism. Telescopic rods are installed at the four corners of the base's top, and the support platform is connected to the top of each telescopic rod. A rotating mechanism is mounted on the support platform, and the testing platform is connected to the top of the rotating mechanism. The rotating mechanism can rotate horizontally relative to the support platform. The testing platform is equipped with a support column and a clamping mechanism. One end of the lifting mechanism is located inside the base, and the other end is connected to the bottom of the support platform. The lifting mechanism can drive the support platform to move up and down relative to the base. The controller is installed on the outer side wall of the front end of the base and is electrically connected to both the clamping mechanism and the rotating mechanism. The advantages of this invention are: improved testing comprehensiveness, realization of vertical displacement, and improved versatility and applicability of the fixture.

Description

Technical Field

[0001] This invention belongs to the field of aviation component testing technology, specifically, it relates to a testing fixture. Background Technology

[0002] Inspection fixtures (hereinafter referred to as "inspection fixtures") are specialized positioning / auxiliary devices designed to meet the needs of product quality inspection. Their core function is to precisely constrain the spatial position and orientation of the workpiece being tested, and to work in conjunction with inspection equipment (such as coordinate measuring machines, vision inspection instruments, hardness testers, etc.) to achieve efficient, accurate, and repeatable inspection operations. They serve as a crucial bridge connecting the workpiece being tested and the inspection system, and are widely used in high-precision manufacturing fields such as machinery manufacturing, automotive, electronics, and aerospace.

[0003] Currently, testing fixtures are widely used in the market. Testing fixtures are special process equipment used to assist in the testing of aerospace parts (such as structural parts, engine components, avionics equipment, etc.). Their design and application must meet the stringent requirements of high precision and high reliability in the aerospace field. However, most testing fixtures have fixed adjustment structures during use, which are not easy to move after the aerospace parts are fixed, such as adjusting the horizontal direction and vertical position as needed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a testing fixture that is easy to adjust in both horizontal and vertical directions. This solves the problem that most testing fixtures have fixed adjustment structures during use, making them difficult to move once the aerospace components are fixed, such as when adjusting the horizontal and vertical directions as needed.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a tooling fixture for testing, comprising a base, telescopic rods, a support platform, a rotating mechanism, a lifting mechanism, a testing platform, a support column, a controller, and a clamping mechanism. A telescopic rod is fixedly installed at each of the four corners of the top of the base. The tops of the four telescopic rods are connected to the support platform. A rotating mechanism is provided on the support platform, and the top of the rotating mechanism is connected to the testing platform. The rotating mechanism can rotate horizontally relative to the support platform. A support column and a clamping mechanism are provided on the testing platform. One end of the lifting mechanism is located inside the base, and the other end is connected to the bottom of the support platform. The lifting mechanism can drive the support platform to move up and down relative to the base. The controller is installed on the outer side wall of the front end of the base and is electrically connected to both the clamping mechanism and the rotating mechanism. The aerospace component to be tested is placed on the support column, and the clamping mechanism clamps the aerospace component. The controller can control the clamping and releasing of the clamping mechanism and control the horizontal rotation of the rotating mechanism.

[0006] Furthermore, the rotating mechanism includes a servo motor, a rotating shaft, a connecting frame, a slide rail, and pulleys. The servo motor is fixedly installed at the bottom center of the support platform. A rotating shaft extending to the top of the support platform and connected to the bottom of the testing platform is fixedly installed at the output of the servo motor. The input end of the servo motor is electrically connected to the controller. There are two connecting frames, each fixed to the left and right ends of the bottom of the testing platform. The slide rail is fixedly installed at the top center of the support platform. Each of the two connecting frames is provided with a pulley that matches the slide rail.

[0007] Furthermore, the clamping mechanism includes a support block, an electric push rod, and a clamping block. A support block is fixedly installed at each of the four opposing positions on the left, right, front, and back sides of the detection platform. An electric push rod is fixedly installed on each of the four support blocks. A clamping block is fixedly installed on one end of each of the four electric push rods and located inside the support block. The other end of each of the four electric push rods is electrically connected to the controller.

[0008] Furthermore, the support column is fixed to the top center of the testing platform, and the base is equipped with a lifting mechanism that is connected to the bottom of the support platform.

[0009] Furthermore, the base is a hollow trapezoidal frame.

[0010] Furthermore, the lifting mechanism includes a rotating rod, a fixed block, a bearing, a gear, a toothed plate, a limiting plate, and a guide rod. One end of the rotating rod is located on the outer right side of the base, and the other end extends into the base. Two fixed blocks are provided, respectively fixed to the inner walls of the left and right sides of the base. Bearings connected to the outer wall of the rotating rod are fixedly installed on the opposite surfaces of the two fixed blocks. Two gears are provided, each fixedly installed on the outer wall of the rotating rod. A toothed plate meshes with the rear side of each gear. A limiting plate is fixedly installed at the bottom of each toothed plate. The top of each toothed plate is connected to the left and right ends of the bottom of the support platform, respectively. A guide rod is connected to each of the left and right ends of each limiting plate, and the limiting plate can slide up and down relative to the guide rod. The two ends of the guide rod are fixed to the inner walls of the top and bottom of the base, respectively. The toothed plate is located between the two guide rods.

[0011] Furthermore, the controller is an embedded industrial computer or a PLC.

[0012] Furthermore, the slide rail is an annular slide rail, and the bearing is a high-precision rolling bearing.

[0013] Furthermore, the limiting plate is provided with a guide hole that matches the guide rod, and the top of the base is also provided with a lifting groove (not shown in the figure) that matches the toothed plate. The top shape of the support column matches the bottom shape of the aviation component to be tested.

[0014] Furthermore, the support platform is provided with a rotating hole that is compatible with the rotating shaft.

[0015] The beneficial effects of this invention are as follows: Compared with the prior art, the present invention provides a tooling fixture for testing, which has the following beneficial effects: 1) This inspection fixture, by setting a servo motor, first drives the rotating shaft to rotate, which in turn rotates the connecting frame and the inspection table connected to it. It rotates in a circle around the rotating shaft. At the same time, the connecting frame drives the pulley to slide on the slide rail to assist the smoothness of the rotation process. Thus, the inspection table can be rotated horizontally according to the inspector's needs. When inspecting aerospace components, it can drive the inspection table and the components placed on it to rotate, so that the inspection equipment can measure the components from different angles, avoid missing defects due to limited inspection angles, and improve the comprehensiveness of inspection.

[0016] 2) This inspection fixture uses a rotating rod. When the rotating rod rotates, it drives the connected gear to rotate. The gear meshes with the rack, causing the rack to move linearly up and down along the guide rod, thus achieving vertical displacement. In the inspection of aerospace components, the height of the clamping mechanism can be flexibly adjusted according to the different height requirements of the components, ensuring that the clamping mechanism can accurately and stably clamp the components. Aerospace components have different shapes and sizes, and the lifting mechanism can make the fixture adaptable to the inspection needs of various specifications of components, improving the versatility and applicability of the fixture. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a partial cross-sectional view of the present invention; Figure 3 This is a schematic diagram showing the connection between the support platform and the slide rail of the present invention; Figure 4 This is a schematic diagram of the lifting mechanism of the present invention; Figure 5 This is an exploded bottom view of the connection between the support platform, telescopic rod, and toothed plate of the present invention. Figure 6 For the present invention Figure 1 Enlarged view of point A in the middle.

[0018] In the diagram: 1. Base; 2. Telescopic rod; 3. Support platform; 4. Rotating mechanism; 401. Servo motor; 402. Rotating shaft; 403. Connecting frame; 404. Slide rail; 405. Pulley; 5. Detection platform; 6. Support column; 7. Clamping mechanism; 701. Support block; 702. Electric push rod; 703. Clamping block; 8. Lifting mechanism; 801. Rotating rod; 802. Fixing block; 803. Bearing; 804. Gear; 805. Gear plate; 806. Limiting plate; 807. Guide rod; 9. Controller. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this application, it should be noted that the terms "center / part", "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] Furthermore, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "equipped with," "sleeve-in / connected," "clamp-in," etc., should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0022] like Figures 1 to 6 As shown, this invention provides a testing fixture, including a base 1, telescopic rods 2, a support platform 3, a rotating mechanism 4, a lifting mechanism 8, a testing platform 5, a support column 6, a controller 9, and a clamping mechanism 7. A telescopic rod 2 is fixedly installed at each of the four corners of the top of the base 1. The tops of the four telescopic rods 2 are connected to the support platform 3. The rotating mechanism 4 is mounted on the support platform 3, and the top of the rotating mechanism 4 is connected to the testing platform 5. The rotating mechanism 4 can rotate horizontally relative to the support platform 3. The testing platform 5 is equipped with the support column 6 and the clamping mechanism 7. One end of the lifting mechanism 8 is located inside the base 1, and the other end is connected to the bottom of the support platform 3. The lifting mechanism 8 can drive the support platform 3 to move up and down relative to the base 1. The controller 9 is installed on the outer wall of the front end of the base 1 and is electrically connected to both the clamping mechanism 7 and the rotating mechanism 4. The aerospace component to be tested is placed on the support column 6, and the clamping mechanism 7 clamps the aerospace component. The controller 9 can control the clamping and releasing of the clamping mechanism 7 and control the horizontal rotation of the rotating mechanism 4.

[0023] Preferably, the rotating mechanism 4 includes a servo motor 401, a rotating shaft 402, a connecting frame 403, a slide rail 404, and a pulley 405. The servo motor 401 is fixedly installed at the bottom center of the support platform 3. The output of the servo motor 401 is fixedly installed with a rotating shaft 402 that extends to the top of the support platform 3 and connects to the bottom of the detection platform 5. The input end of the servo motor 401 is electrically connected to the controller 9. There are two connecting frames 403, which are fixedly installed at the left and right ends of the bottom of the detection platform 5, respectively. The slide rail 404 is fixedly installed at the top center of the support platform 3. Each of the two connecting frames 403 is provided with a pulley 405 that is adapted to the slide rail 404.

[0024] Preferably, the clamping mechanism 7 includes a support block 701, an electric push rod 702, and a clamping block 703. A support block 701 is fixedly installed at each of the four opposing positions on the left, right, front, and back sides of the detection table 5. An electric push rod 702 is fixedly installed on each of the four support blocks 701. A clamping block 703 is fixedly installed on one end of each of the four electric push rods 702 and located inside the support block 701. The other end of each of the four electric push rods 702 is electrically connected to the controller 9.

[0025] Preferably, the support column 6 is fixed to the top center of the testing platform 5, and the base 1 is provided with a lifting mechanism 8 connected to the bottom of the support platform 3.

[0026] Preferably, the base 1 is a hollow trapezoidal frame.

[0027] Preferably, the lifting mechanism 8 includes a rotating rod 801, a fixing block 802, a bearing 803, a gear 804, a gear plate 805, a limiting plate 806, and a guide rod 807. One end of the rotating rod 801 is located on the outer right side of the base 1, and the other end extends into the interior of the base 1. Two fixing blocks 802 are provided and fixed to the inner walls of the left and right sides of the base 1, respectively. Bearings 803 connected to the outer wall of the rotating rod 801 are fixedly installed on the opposite surfaces of the two fixing blocks 802. Two gears 804 are provided and fixedly installed on the rotating rod 801. On the outer wall of 01, two gears 804 are meshed with a toothed plate 805 on their rear sides. A limiting plate 806 is fixedly installed at the bottom of each of the two toothed plates 805. The tops of the two toothed plates 805 are respectively connected to the left and right ends of the bottom of the support platform 3. A guide rod 807 is connected to each of the left and right ends of each limiting plate 806. The limiting plate 806 can slide up and down relative to the guide rod 807. The two ends of the guide rod 807 are fixed to the inner walls of the top and bottom of the base 1, respectively. The toothed plate 805 is located between the two guide rods 807.

[0028] Preferably, the controller 9 adopts an embedded industrial computer or PLC (such as Siemens S7-1200 series), integrates industrial bus interfaces such as EtherCAT and CANopen, and integrates PID control algorithm, multi-point positioning control program, torque protection program, etc., and has a human-machine interface (HMI) to support manual / automatic mode switching. The sensor feedback module integrated in the controller 9 can be connected to photoelectric sensor, pressure sensor, encoder signal to realize clamping force monitoring, position feedback, abnormal alarm and other functions.

[0029] Preferably, the slide rail 404 is an annular slide rail, and the bearing 803 is a high-precision rolling bearing.

[0030] Preferably, the limiting plate 806 is provided with a guide hole that matches the guide rod 807, and the top of the base 1 is also provided with a lifting groove (not shown in the figure) that matches the toothed plate 805. The top shape of the support column 6 matches the bottom shape of the aviation component to be tested.

[0031] Preferably, the support platform 3 is provided with a rotating hole that is compatible with the rotating shaft 402.

[0032] In this invention, see Figures 1 to 6 A testing fixture includes a base 1, telescopic rods 2, a support platform 3, a rotating mechanism 4, a lifting mechanism 8, a testing platform 5, a support column 6, a controller 9, and a clamping mechanism 7. The base 1 has telescopic rods 2 fixedly installed at the four corners of its top. The top plates of the four telescopic rods 2 are connected to the support platform 3. The support platform 3 is equipped with a rotating mechanism 4. The top of the support platform 3 is equipped with a testing platform 5 connected to the rotating mechanism 4. The testing platform 5 is equipped with a support column 6 and a clamping mechanism 7. Among them, the base 1 serves as the basic support structure of the entire tooling fixture, providing a stable installation platform for other components. The telescopic rods 2, which are fixedly installed at the four corners of its top, play a key auxiliary role in connecting the upper and lower parts. The telescopic rod 2 can be a gas spring type telescopic rod or a hydraulic damping type telescopic rod. It has an internal locking mechanism that can be locked at any height. The stroke of the telescopic rod 2 should match the lifting range of the lifting mechanism 8 to ensure that the telescopic rod 2 is always in an effective support state during the lifting process. Preferred model example: gas spring telescopic rod (such as STABILUS Lift-O-Mat series), which has a self-locking function and is suitable for scenarios with frequent adjustments and the need to maintain a stable position. The rotating mechanism 4 includes a servo motor 401, a rotating shaft 402, a connecting frame 403, a slide rail 404, and a pulley 405. The servo motor 401 is fixedly mounted on the bottom of the support platform 3. When the servo motor 401 operates, it drives the rotating shaft 402 to rotate, thereby causing the detection platform 5 to perform circular motion around the rotating shaft 402. A rotating shaft 402 extending to the top of the support platform 3 and connected to the bottom of the detection platform 5 is fixedly mounted at the output of the servo motor 401. Two connecting frames 403 are fixedly mounted on the bottom of the detection platform 5, and a slide rail 404 is fixedly mounted on the top of the support platform 3. Both connecting frames 403 are equipped with pulleys that connect to the slide rail 405. The four-phase compatible pulley 405 and the connecting frame 403 are fixed to the bottom of the testing table 5. The pulley 405 is compatible with the slide rail 404 on the top of the support platform 3. During the rotation of the testing table 5, the pulley 405 slides on the slide rail 404, playing an auxiliary support and guiding role. The servo motor 401 serves as the power source and can accurately control the rotation angle and speed of the rotating shaft 402. Together with the pulley 405, it can ensure the stability and accuracy of the rotation of the testing table 5, so that the testing equipment can perform comprehensive testing on the aerospace parts placed on the testing table 5 from different angles, avoid blind spots, and improve the reliability of the testing results. Among them, the servo motor 401 is a closed-loop control servo motor with encoder, such as the Panasonic MINAS A6 series or Delta ASDA-B3 series, which has high-precision position control and torque control functions. The motor output torque is selected based on the total weight of the detection table 5 and the component to be tested, ensuring smooth rotation without step loss. The controller 9 communicates with the servo driver of the servo motor 401 through pulse + direction or EtherCAT bus to achieve precise control of angle, speed and acceleration. Among them, the slide rail 404 is a ring linear guide (such as the HIWIN HGW series), with a V-shaped or U-shaped cross section and a surface hardening treatment. The pulley 405 is a nylon or polyurethane-coated bearing wheel with ball bearings inside. It has a low coefficient of friction and good wear resistance. Lubricating grease can be added between the slide rail 404 and the pulley 405 or a self-lubricating bushing can be installed to extend the service life. The clamping mechanism 7 is distributed on the left, right, front and back sides of the testing table 5. The support block 701 serves as the mounting base for the electric push rod 702 and is fixed on the testing table 5. The clamping mechanism 7 includes the support block 701, the electric push rod 702 and the clamping block 703. The support block 701 is fixedly installed on the left, right, front and back sides of the testing table 5. The electric push rod 702 is fixedly installed on each of the four support blocks 701. The clamping block 703 is fixedly installed on each of the four electric push rods 702 and located inside the support block 701. Among them, the electric linear actuator 702 can be a DC motor driven actuator with built-in worm gear or ball screw transmission and a self-locking function. The actuator stroke should be determined according to the size range of the part to be clamped, and the stroke is usually adjustable between 50-200mm. Example model: TIMMOTION TA series electric linear actuator, with built-in potentiometer or encoder, can realize position closed-loop control. The controller 9 sends a command, and the electric linear actuator 702 performs a telescopic movement, driving the clamping block 703 to move closer or away from the aviation part on the support column 6, thereby realizing the clamping and releasing operation of the part. The specific working process of the controller 9 controlling the clamping mechanism 7 is as follows: Command sending: The operator inputs the clamping command (such as the target clamping force or target displacement) through the controller 9 interface; Signal output: The controller 9 sends a control signal to the driver of the electric linear actuator 702 through its digital output (DO) channel or dedicated motion control bus (such as EtherCAT) according to the command; Drive execution: The motor inside the electric linear actuator 702 (usually a DC motor or stepper motor) After receiving a signal, the electric actuator (702) begins to rotate. Through a transmission mechanism such as a worm gear or lead screw, the rotational motion is converted into the linear motion of the push rod. Feedback and closed-loop control: If the electric push rod 702 integrates a position sensor (such as a potentiometer or encoder), it will feed back the real-time position signal of the push rod to the sensor feedback module of the controller 9. The controller 9 compares this feedback value with the target value and adjusts the output signal in real time to form a closed-loop control, ensuring the accuracy and consistency of clamping force or position, and preventing overpressure damage or unstable clamping to aerospace components. This design can firmly fix aerospace components, prevent displacement or shaking of components during the inspection process, ensure the accuracy of inspection data, and facilitate quick clamping and disassembly of components, improving inspection efficiency. A support column 6 is fixedly installed on the testing table 5. The top shape of the support column 6 is specially designed according to the bottom shape of the aerospace part to be tested, which can accurately position the part to be tested and ensure that the part is in the correct initial position during the testing process, providing a basis for subsequent accurate testing. The base 1 is internally equipped with a lifting mechanism 8 connected to the bottom of the support platform 3. The lifting mechanism 8 includes a rotating rod 801. The base 1 is externally equipped with a rotating rod 801 extending into it. Fixing blocks 802 are fixedly installed on the inner walls of the left and right sides of the base 1. Bearings 803 connected to the outer wall of the rotating rod 801 are fixedly installed on the opposite surfaces of the two fixing blocks 802. The rotating rod 801 is connected to the fixing blocks 802 fixed on the inner walls of the left and right sides of the base 1 through the bearings 803 to reduce frictional resistance during rotation. Two gears 804 are fixedly installed on the outside of the rotating rod 801. The rear sides of the two gears 804 are meshed with toothed plates 805. When the rotating rod 801 rotates, it drives the gears 804 to rotate, thereby causing the toothed plates 805 to move linearly up and down along the guide rod 807. Limiting plates 806 are fixedly installed at the bottom of the two toothed plates 805. The base 1 is internally equipped with a guide rod 807 that is movably connected to the limiting plates 806. The fixed block 802 is also equipped with a bearing seat. The bearing 803 should be a deep groove ball bearing (such as SKF 6200 series) or an angular contact ball bearing, which has high precision (P5 grade or above), high speed and low friction characteristics. The inner diameter of the bearing should match the shaft diameter of the rotating rod 801, and the outer diameter should be interference-fitted with the bearing seat of the fixed block 802. Sealing rings are provided at both ends to prevent dust from entering. The limiting plate 806 is fixed to the bottom of the toothed plate 805 and is movably connected to the guide rod 807. It is used to limit the lifting stroke of the toothed plate 805 to prevent excessive lifting and lowering, which may cause equipment damage or abnormal clamping of parts. The function of the lifting mechanism 8 is to adjust the height of the support platform 3 and the entire inspection work platform in a wide range according to the height dimensions of different aerospace parts, further enhancing the adaptability of the tooling fixture to a variety of aerospace parts and broadening its application range. A controller 9 is fixedly installed on the front side of the base 1. The controller 9 integrates motion control algorithms and sensor feedback modules. Through electrical connection with the servo motor 401 and electric push rod 702, it can obtain the operating status information of each component in real time and accurately control the action of each component according to the preset detection program and actual detection requirements. The controller 9 can be an embedded industrial computer or PLC (such as Siemens S7-1200 series), integrating industrial bus interfaces such as EtherCAT and CANopen. The controller 9 integrates PID control algorithms, multi-point positioning control programs, torque protection programs, etc., and has a human-machine interface (HMI) that supports manual / automatic mode switching. The sensor feedback module can connect to photoelectric sensors, pressure sensors, and encoder signals to realize functions such as clamping force monitoring, position feedback, and abnormal alarms. According to the requirements of the inspection project, the servo motor 401 is controlled to drive the inspection table 5 to rotate to a suitable angle; according to the clamping requirements of the parts, the electric push rod 702 is controlled to achieve precise clamping of the parts. This intelligent control method improves the automation level and operation convenience of the tooling fixture, while ensuring the stability of the inspection process and the accuracy of the inspection results.

[0033] In practice, this invention is operated according to the following steps: 1) First, the servo motor 401 drives the rotating shaft 402 to rotate, so that it rotates the connecting frame 403 and the detection table 5 connected to it. 2) Then, the rotating shaft 402 is rotated in a circle, while the connecting frame 403 drives the pulley 405 to slide on the slide rail 404 to assist in the smoothness of the rotation process; 3) During the inspection of aerospace components, the inspection table 5 and the components placed on it can be rotated, so that the inspection equipment can measure the components from different angles.

[0034] The working principle of this invention is as follows: The inspection fixture is equipped with a servo motor 401, which drives the rotating shaft 402 to rotate, causing the connecting frame 403 and the connected inspection table 5 to rotate. The rotating shaft 402 rotates in a circle, while the connecting frame 403 drives the pulley 405 to slide on the slide rail 404 to assist in the smoothness of the rotation process. This allows the inspection table 5 to rotate horizontally according to the inspector's needs. When inspecting aerospace components, the inspection table 5 and the components placed on it can be rotated, allowing the inspection equipment to measure the components from different angles, avoiding the omission of defects due to limited inspection angles and improving the comprehensiveness of the inspection. Furthermore, by setting up a rotating rod 801, when the rotating rod 801 rotates, it drives the gear 804 connected to it to rotate. The gear 804 meshes with the rack 805, causing the rack 805 to move linearly up and down along the guide rod 807, thus achieving vertical displacement. In the inspection of aerospace components, the height position of the clamping mechanism 7 can be flexibly adjusted according to the different height requirements of the components, ensuring that the clamping mechanism 7 can accurately and stably clamp the components. Aerospace components have different shapes and sizes, and the lifting mechanism 8 can make the tooling fixture adapt to the inspection requirements of various specifications of components, improving the versatility and applicability of the tooling fixture.

[0035] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tooling fixture for testing, characterized in that: The device includes a base, telescopic rods, a support platform, a rotating mechanism, a lifting mechanism, a testing platform, a support column, a controller, and a clamping mechanism. Each of the four corners of the base's top is fixedly mounted with a telescopic rod, and the tops of the four telescopic rods are connected to the support platform. A rotating mechanism is mounted on the support platform, and the top of the rotating mechanism is connected to the testing platform. The rotating mechanism can rotate horizontally relative to the support platform. A support column and a clamping mechanism are mounted on the testing platform. One end of the lifting mechanism is located inside the base, and the other end is connected to the bottom of the support platform. The lifting mechanism can move the support platform up and down relative to the base. The controller is mounted on the outer wall of the front end of the base and is electrically connected to both the clamping mechanism and the rotating mechanism. The aerospace component to be tested is placed on the support column, and the clamping mechanism clamps the component. The controller can control the clamping and releasing of the clamping mechanism and control the horizontal rotation of the rotating mechanism.

2. The testing fixture according to claim 1, characterized in that: The rotating mechanism includes a servo motor, a rotating shaft, a connecting frame, a slide rail, and pulleys. The servo motor is fixedly installed at the bottom center of the support platform. A rotating shaft extending to the top of the support platform and connected to the bottom of the testing platform is fixedly installed at the output of the servo motor. The input end of the servo motor is electrically connected to the controller. There are two connecting frames, which are fixedly installed at the left and right ends of the bottom of the testing platform, respectively. The slide rail is fixedly installed at the top center of the support platform. Each of the two connecting frames is provided with a pulley that matches the slide rail.

3. The testing fixture according to claim 1, characterized in that: The clamping mechanism includes a support block, an electric push rod, and a clamping block. A support block is fixedly installed at each of the four opposing positions on the left, right, front, and back sides of the detection platform. An electric push rod is fixedly installed on each of the four support blocks. A clamping block is fixedly installed on one end of each of the four electric push rods, located inside the support block. The other end of each of the four electric push rods is electrically connected to the controller.

4. The testing fixture according to claim 1, characterized in that: The support column is fixed to the top center of the testing platform.

5. The testing fixture according to claim 1, characterized in that: The base is a hollow trapezoidal frame.

6. The testing fixture according to claim 2, characterized in that: The lifting mechanism includes a rotating rod, fixed blocks, bearings, gears, toothed plates, limiting plates, and guide rods. One end of the rotating rod is located on the outer right side of the base, and the other end extends into the base. Two fixed blocks are provided, respectively fixed to the inner walls of the left and right sides of the base. Bearings connected to the outer wall of the rotating rod are fixedly installed on the opposite surfaces of the two fixed blocks. Two gears are provided, both fixedly installed on the outer wall of the rotating rod. A toothed plate meshes with the rear side of each gear. A limiting plate is fixedly installed at the bottom of each toothed plate. The top of each toothed plate is connected to the left and right ends of the bottom of the support platform, respectively. A guide rod is connected to each of the left and right ends of each limiting plate, and the limiting plate can slide up and down relative to the guide rod. The two ends of the guide rod are fixed to the inner walls of the top and bottom of the base, respectively. The toothed plate is located between the two guide rods.

7. The testing fixture according to claim 1, characterized in that: The controller is an embedded industrial computer or a PLC.

8. The testing fixture according to claim 6, characterized in that: The slide rail is an annular slide rail, and the bearing is a high-precision rolling bearing.

9. The testing fixture according to claim 6, characterized in that: The limiting plate is provided with a guide hole that matches the guide rod, and the top of the base is also provided with a lifting groove that matches the toothed plate. The top shape of the support column matches the bottom shape of the aviation component to be tested.

10. The testing fixture according to claim 2, characterized in that: The support platform is provided with a rotating hole that is compatible with the rotating shaft.

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