Multi-dimensional space gravity center calibration method

Abstract

The invention relates to a multi-dimensional space gravity center calibration method, belongs to the technical field of gravity center calibration, and is used for solving one of the problems that the gravity center of a detection piece is measured in one spatial dimension, and when the detection piece is used in a multi-dimensional space, the detected gravity center position and the measurement precision are insufficient, and the use requirements of complex working conditions cannot be met in an existing detection method. The method comprises the steps that firstly, on a sliding guide way, a second bearing clamping ring moves towards a first bearing clamping ring; step 2, placing a detection piece between the first bearing clamping ring and the second bearing clamping ring; and 3, detecting the gravity of the detection piece at the positions of the first bearing clamping ring and the second bearing clamping ring, and calibrating the gravity center of the detection piece. Through the design of the steps of moving the supporting clamping ring, placing the detection piece and then detecting the gravity, a complex early-stage posture adjusting mechanism is not needed, the complexity of calibration operation is reduced, and multi-dimensional gravity center marking is achieved.

Description

Technical Field

[0001] This invention relates to the field of center of gravity calibration methods, and more particularly to a multi-dimensional spatial center of gravity calibration method. Background Technology

[0002] The center of gravity position of specialized testing components in certain fields has a decisive impact on their dynamic stability and transportability. Therefore, extremely high requirements are placed on the measurement accuracy of their weight and center of gravity during the manufacturing and acceptance stages of these components. Furthermore, the detection and calibration of the center of gravity parameters are a core component in ensuring the reliability of equipment stored and transported in these specialized fields.

[0003] Currently, most of the center-of-gravity measurement equipment used in the industry is a dedicated model designed for specific product specifications. This narrow range of equipment makes it difficult to accommodate the testing needs of components of different sizes and weights, increasing production and testing costs and resulting in idle and wasted equipment resources. More importantly, existing measuring devices are generally limited to single-dimensional center-of-gravity measurement capabilities, failing to accurately capture the actual center-of-gravity coordinates of the component in three-dimensional space. This makes it difficult to meet the high-order requirements for center-of-gravity measurement accuracy under complex storage and transportation conditions, becoming a core bottleneck restricting the improvement of testing efficiency and quality. Summary of the Invention

[0004] Based on the above analysis, the present invention aims to provide a multi-dimensional spatial center of gravity calibration method to solve one of the technical problems of existing center of gravity calibration methods, such as inability to adapt to different specifications of tests, inability to perform multi-dimensional center of gravity calibration, and cumbersome testing procedures.

[0005] This invention provides a method for calibrating the centroid in multidimensional space, which includes the following steps:

[0006] Step 1: On the sliding guide, the second support clamping ring moves toward the first support clamping ring;

[0007] Step 2: Place the test piece between the first support clamp and the second support clamp;

[0008] Step 3: Detect the weight of the test piece at the positions of the first and second support clamps, and calibrate the center of gravity of the test piece.

[0009] Furthermore, between step two and step three, the second supporting clamp ring moves away from the first supporting clamp ring on the sliding guide and moves to the detection position.

[0010] Furthermore, step two also includes driving the front pusher in the first support clamping ring to clamp the test piece.

[0011] Furthermore, step two also includes driving the rear pusher in the second support clamping ring to clamp the test piece.

[0012] Furthermore, the front pusher and the rear pusher clamp the test piece simultaneously.

[0013] Furthermore, it also includes step four: driving the first support clamping ring to rotate 180° and driving the second support clamping ring to rotate 180°.

[0014] Furthermore, in step four, the first support clamping ring and the second support clamping ring rotate synchronously in a circular motion.

[0015] Furthermore, it also includes step five, after rotating 180° in a circle, the first support clamp and the second support clamp again detect the weight of the test piece and recalibrate the center of gravity of the test piece.

[0016] Further, in step six, the front pusher and the rear pusher release their clamping on the test piece, and the test piece moves out from the first support clamp and the second support clamp.

[0017] Furthermore, a multi-dimensional spatial center of gravity calibration device is used to calibrate the center of gravity of the test piece.

[0018] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0019] (1) The multi-dimensional spatial center of gravity calibration method described in this invention, through the step design of moving the support ring, placing the test piece and then detecting the gravity, does not require a complicated pre-position adjustment mechanism, reducing the complexity of the calibration operation, and at the same time realizes the basic function of center of gravity calibration, providing a reliable basic framework for subsequent optimization steps to improve calibration accuracy.

[0020] (2) The multi-dimensional spatial center of gravity calibration method of this invention achieves reliable fixation of the front end of the test piece by driving the front pusher of the first support clamping ring to clamp the test piece, reducing the probability of displacement of the test piece relative to the first support clamping ring during calibration, preventing deviation of gravity detection data caused by displacement, and ensuring the accuracy of gravity detection data at the front support. By driving the rear pusher of the second support clamping ring to clamp the test piece, it cooperates with the clamping structure of the first support clamping ring to form a two-way fixation, further restricting the degree of freedom of the test piece, effectively reducing the probability of the test piece shifting or deviating during calibration, and improving the overall stability of the test piece. The synchronous clamping of the front and rear pushers ensures balanced force on the test piece during clamping, reducing the probability of tilting or deformation of the test piece due to clamping on one side first, ensuring the initial attitude accuracy of the test piece, and reducing the impact of attitude deviation on the center of gravity calibration results from the source.

[0021] (3) The multidimensional spatial center of gravity calibration method of the present invention adds a step of rotating the second front support clamp ring by 180°, which can realize the center of gravity detection of the test piece under different circumferential postures. It can eliminate the support point error that may exist under a single posture and the system deviation caused by the asymmetry of the test piece itself, and provide a posture adjustment basis for subsequent multidimensional verification of center of gravity data.

[0022] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0023] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0024] Figure 1 This is a flowchart of the multidimensional spatial centroid calibration method described in Example 1;

[0025] Figure 2 This is one of the structural schematic diagrams of the multidimensional space center of gravity calibration device described in Embodiment 2;

[0026] Figure 3 This is the second schematic diagram of the multidimensional space center of gravity calibration device described in Example 2;

[0027] Figure 4 This is the third schematic diagram of the multidimensional space center of gravity calibration device described in Example 2;

[0028] Figure 5 This is a schematic diagram of the calibration assembly and restoration unit in Example 2;

[0029] Figure 6 This is a schematic diagram of the reduction unit in Example 2.

[0030] Figure label:

[0031] 1-Inspection component; 2-First support clamping ring; 21-Front pusher; 211-Front top; 212-Front flare; 22-Front inner core ring; 23-Front center ring; 24-Front outer contour ring; 3-Second support clamping ring; 31-Rear pusher; 311-Rear top; 312-Rear flare; 32-Rear inner core ring; 33-Rear center ring; 34-Rear outer contour ring; 4-Sliding guideway; 5-First support base; 6-Rear support base; 7-Rotating bearing part; 71-Rotating groove; 8-Calibration assembly; 81-Assembly end; 82-Calibration ratchet; 83-Locking assembly; 831-Rotating shaft; 832-Support seat; 833-Locking part; 8331-Transmission 8332-Lock part, 834-Power supply component, 835-Directional joint; 9-Restore unit, 91-Restore bearing, 92-Return component, 93-Restore spring; 10-Transmission assembly, 101-Conveyor belt, 102-Transmission shaft, 103-Conveyor belt bracket, 104-Connecting frame, 105-Bottom movable frame; 11-Liftable support frame, 111-Support base, 112-Guide column, 113-Power output shaft, 114-First transmission rod, 115-Second transmission rod, 116-Lifting platform; 12-Support part, 121-Support column, 122-Adjustment control component; 13-Base, 131-Opening. Detailed Implementation

[0032] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0033] Example 1

[0034] This is to address one of the technical problems in existing center of gravity calibration methods: they cannot be adapted to tests of different specifications, cannot perform multi-dimensional center of gravity calibration, and have cumbersome testing procedures.

[0035] This invention provides a method for calibrating the center of gravity in multidimensional space, such as... Figure 1 As shown, it includes the following steps:

[0036] Step 1: On the sliding guide 4, the second support clamp 3 moves toward the first support clamp 2;

[0037] Step 2: Place the test piece between the first support clamp 2 and the second support clamp 3;

[0038] Step 3: Detect the weight of the test piece at the positions of the first support clamping ring 2 and the second support clamping ring 3, and calibrate the center of gravity of the test piece.

[0039] The multi-dimensional spatial center of gravity calibration method described in this embodiment provides a simple and clear core process for multi-dimensional spatial center of gravity calibration. By designing the steps of moving the support ring, placing the detection component, and then detecting gravity, it eliminates the need for a complex pre-position adjustment mechanism, reducing the complexity of the calibration operation. At the same time, it realizes the basic function of center of gravity calibration, providing a reliable basic framework for subsequent optimization steps to improve calibration accuracy.

[0040] Furthermore, between steps two and three, the second supporting clamping ring 3 moves away from the first supporting clamping ring 2 on the sliding guide 4 and moves to the detection position. By adding the step of moving the second supporting clamping ring 3 to the detection position after placing the test piece, the spacing of the first and second supporting clamping rings 3 can be flexibly adjusted, so that the test piece is in an optimal posture with stable force and easy acquisition of test data, reducing the probability of force imbalance of the test piece due to improper support position and improving the initial detection accuracy of center of gravity calibration.

[0041] Furthermore, step two also includes driving the front pusher 21 in the first support clamping ring 2 to clamp the test piece. By driving the front pusher 21 in the first support clamping ring 2 to clamp the test piece, reliable fixation of the front end of the test piece is achieved, reducing the probability of displacement of the test piece relative to the first support clamping ring 2 during calibration, preventing deviation of gravity detection data caused by displacement, and ensuring the accuracy of gravity detection data at the front support.

[0042] Furthermore, step two also includes driving the rear pusher 31 in the second support clamping ring 3 to clamp the test piece. By driving the rear pusher 31 of the second support clamping ring 3 to clamp the test piece, it cooperates with the clamping structure of the first support clamping ring 2 to form a two-way fixation, further restricting the degree of freedom of the test piece, reducing the probability of the test piece moving or shifting during the calibration process, and improving the overall stability of the test piece.

[0043] Furthermore, the front pusher 21 and the rear pusher 31 clamp the test piece simultaneously. The simultaneous clamping of the front pusher 21 and the rear pusher 31 ensures that the test piece is subjected to balanced force during the clamping process, reducing the probability of the test piece tilting or deforming due to clamping on one side first, thus ensuring the initial attitude accuracy of the test piece and reducing the impact of attitude deviation on the center of gravity calibration results from the source.

[0044] Furthermore, it also includes step four: driving the first support clamping ring 2 to rotate 180° and driving the second support clamping ring 3 to rotate 180°. Adding the step of rotating the second support clamping ring 3 180° enables the detection of the center of gravity of the test piece under different circumferential postures. This eliminates potential support point errors and system deviations caused by the asymmetry of the test piece itself under a single posture, providing a basis for posture adjustment to achieve multi-dimensional verification of the center of gravity data.

[0045] Furthermore, in step four, the first supporting clamp ring 2 and the second supporting clamp ring 3 rotate synchronously in a circular motion. This synchronous rotation of the first and second supporting clamp rings 3 ensures that the front and rear ends of the test piece change synchronously during rotation, reducing the probability of twisting or displacement of the test piece relative to the supporting clamp rings due to asynchronous rotation at both ends. After rotation, the test piece remains in a stable supported state.

[0046] Furthermore, the process includes step five: after rotating 180°, the first support clamping ring 2 and the second support clamping ring 3 re-detect the weight of the test piece and recalibrate its center of gravity. Performing the weight detection and center of gravity calibration again after rotating 180° allows for comparative analysis of calibration data from two different orientations. This effectively eliminates random errors from a single detection, verifies the consistency of the center of gravity calibration results, and significantly improves the accuracy and reliability of the calibration results.

[0047] Furthermore, in step six, the front pusher 21 and the rear pusher 31 release their clamping of the test piece, allowing the test piece to move out from the first support clamping ring 2 and the second support clamping ring 3. This step design, involving releasing the clamping mechanism and then removing the test piece, ensures safe and convenient handling of the test piece, reduces the probability of damage to the test piece or wear on the support ring structure that might result from forced removal, simplifies the final calibration process, and improves the overall efficiency of the calibration work.

[0048] Example 2

[0049] To address one of the problems in existing technologies where center of gravity calibration devices cannot match different specifications of test pieces, adapt to production and testing needs, and address both fixed test pieces and multi-dimensional test pieces, this embodiment provides a multi-dimensional center of gravity measurement device for Example 1.

[0050] The multi-dimensional spatial centroid calibration device of this embodiment, such as Figure 2 As shown, it includes a first support clamp ring 2, a second support clamp ring 3, a sliding guide rail 4, a first support base 5, and a rear support base 6.

[0051] The first support clamping ring 2 and the second support clamping ring 3 are movably mounted on the sliding guide 4; wherein, both ends of the detection component are respectively secured in the first support clamping ring 2 and the second support clamping ring 3. The first support clamping ring 2 and the second support clamping ring 3 are movably mounted on the sliding guide 4, and the distance between the two clamping rings can be flexibly adjusted according to the length of the detection component, adapting to different types of detection components within the length range of 1000-10000mm, and realizing flexible selection of support position; at the same time, the two ends of the detection component are secured in the two clamping rings, ensuring the basic stability of the clamping, providing a prerequisite for the accuracy of center of gravity measurement, effectively solving the problem of poor versatility of traditional customized devices, and improving equipment utilization.

[0052] like Figure 2As shown, the first supporting clamping ring 2 further includes a front pushing member 21, a front inner core ring 22, a front middle ring 23, and a front outer ring 24. The front inner core ring 22 has a first through hole, and the middle ring has a second through hole. The outer wall of the front outer ring 24 is provided with a gear ring that meshes with the drive shaft. The motor drives the drive shaft to rotate, and the drive shaft drives the gear ring to rotate, thereby realizing the rotation of the first supporting clamping ring 2 by a predetermined angle. Multiple front pushing members 21 are provided on the first supporting clamping ring 2 to adapt to different cross-sectional shapes (such as circular, irregular, and conformal surfaces) and detection pieces with a cross-sectional diameter range of 400-1500mm through multi-point pressing. Multi-point pressing can enhance the clamping firmness of the front end of the detection piece, reduce the probability of slippage and displacement during measurement or flipping, and eliminate the need for customized retaining rings for specific detection pieces, thereby improving the versatility of the device for multiple types of detection pieces and reducing the clamping difficulty.

[0053] Furthermore, each of the second supporting clamping rings 3 includes a rear pusher 31, a rear inner core ring 32, a rear middle connecting ring 33, and a rear outer contour ring 34. The rear inner core ring 32 has a third through hole, and the rear middle connecting ring 33 has a fourth through hole. The outer wall of the rear outer contour ring 34 is provided with a gear ring that meshes with the drive shaft. The motor drives the drive shaft to rotate, and the drive shaft drives the gear ring to rotate, thereby realizing the rotation of the second supporting clamping ring 3 by a predetermined angle. Multiple rear pushers 31 are provided on the second supporting clamping ring 3, forming a multi-point clamping structure that echoes the front pusher 21 of the first supporting clamping ring 2. This allows both ends of the test piece to be firmly fixed by multi-point pressing, reducing the probability of deformation or center of gravity shift of the test piece due to uneven force at a single fixed point. At the same time, it further broadens the adaptability range of the device to test pieces with different cross-sectional sizes and shapes, and enhances the versatility and stability of clamping multiple types of test pieces.

[0054] Multiple front pushing members 21 press against the front end of the testing piece, and multiple rear pushing members 31 press against the rear end of the testing piece. By having the front pushing members 21 press against the front end of the testing piece and the rear pushing members 31 press against the rear end of the testing piece, precise positioning of both ends of the testing piece is achieved, making the axis of the testing piece approximately coincide with the center of the two retaining rings, reducing measurement errors caused by clamping eccentricity. The multi-point pressing method allows for flexible adjustment of the pressing force according to the actual size and shape of the testing piece, ensuring clamping firmness while adapting to the fixing requirements of both ends of different types of testing pieces, thus balancing measurement accuracy, versatility, and protection of the testing piece.

[0055] Furthermore, the center of gravity measuring device also includes a first support base 5 and a rear support base 6. The addition of the first support clamping ring 2, the second support clamping ring 3, and the sliding guide rail 4 creates a stable load-bearing structure of guide rail-support seat-clamping ring, significantly improving the device's load-bearing capacity and adapting it to test pieces weighing from 50kg to 2000kg. Simultaneously, it provides a stable mounting platform for subsequent integration of weighing equipment and realization of clamping ring rotation, reducing measurement errors caused by weak support structures and enhancing the structural reliability of the device.

[0056] Furthermore, both the first support base 5 and the rear support base 6 are equipped with weighing devices. The built-in weighing devices in the first and rear support bases 5 and 6 allow for direct acquisition of the load-bearing weight data at both ends of the test piece, eliminating the need for an external weighing device, simplifying the measurement process, and improving the efficiency of center of gravity determination. Moreover, the weighing devices are integrated into the support base, ensuring a direct weight transfer path, reducing external force interference, and improving the accuracy of the weight data. This provides reliable basic data for subsequent center of gravity calculation, meeting the high measurement accuracy requirements of the test piece. When the test piece rotates at a predetermined angle, the weighing devices can detect the weight of the test piece, thereby performing multi-dimensional center of gravity detection.

[0057] Furthermore, the first support base 5 is used to support the first support clamping ring 2. The supporting role of the first support base 5 on the first support clamping ring 2 is clearly defined, ensuring that the force on the first support clamping ring 2 is evenly transmitted to the sliding guide 4 through the support seat, reducing the probability of deformation or displacement of the retaining ring due to suspended installation; at the same time, it ensures stable contact between the first support clamping ring 2 and the weighing equipment, improving the continuity and accuracy of weight data acquisition, and providing structural protection for stable clamping and accurate weighing of the front end of the test piece. The first support clamping ring 2 is rotatably mounted on the first support base 5. The first support clamping ring 2 is rotatably mounted on the first support base 5, which can drive the front end of the test piece to adjust the angle. With the rotation of the second support clamping ring 3, the test piece can be rotated as a whole (e.g., 180° rotation), breaking through the limitation of single angle measurement. By changing the angle, the center of gravity data in the cross section of the test piece can be completed, eliminating the error caused by clamping eccentricity, and finally achieving accurate measurement of the three-dimensional center of gravity. It is especially suitable for irregular conformal surface test pieces, improving the device's adaptability to multiple types of test pieces and measurement accuracy.

[0058] Furthermore, the rear support base 6 is used to support the second support clamping ring 3. The supporting role of the rear support base 6 on the second support clamping ring 3 is clearly defined, forming a symmetrical load-bearing structure with the first support base 5. This ensures that the weight of the test piece is evenly distributed across the two support points, reducing the probability of device tilting or measurement data distortion caused by excessive force on one side. Simultaneously, it provides a stable foundation for the rotation of the second support clamping ring 3 and the installation of the weighing equipment, ensuring the overall force balance of the device and improving the support stability for long, heavy test pieces. The second support clamping ring 3 is rotatably mounted on the rear support base 6. The second support clamping ring 3 is rotatably mounted on the rear support base 6, and works in conjunction with the rotation function of the first support clamping ring 2 to achieve overall synchronous flipping of the test piece. This reduces the probability of loosening of the clamping or displacement of the test piece due to the fixation of a single-sided retaining ring during the flipping process. The clamping stability is strong during the flipping process, and the error can be calibrated by weighing data from multiple different angles, further improving the accuracy and consistency of three-dimensional center of gravity measurement, and adapting to the precise measurement needs of various types of test pieces such as irregular shapes and conformal surfaces.

[0059] In order to further solve the problem of the predetermined rotation angle of the first support clamping ring 2 and the second support clamping ring 3, and to solve the problem of the stability and accuracy of the rotation angle of the first support clamping ring 2.

[0060] The device also includes a rotating bearing section 7, a drive shaft, and a motor. The rotating bearing section 7 is located on the first support base 5 and the rear support frame. The rotating bearing section 7 has a rotating groove 71. The first support clamping ring 2 and the second support clamping ring 3 are respectively embedded in the rotating groove 71 and can rotate around the drive shaft. The motor is connected to the drive shaft for transmission. The rotation angle is set by the control module to achieve precise fixed-angle flipping. The inner wall of the rotating groove 71 is equipped with a friction-reducing bearing to reduce rotational resistance and make the rotation smooth. An angle encoder is configured at both ends of the drive shaft to provide real-time feedback on the rotational position. In conjunction with the brake, the position is locked in place to prevent angle deviation caused by vibration. This ensures the stability and repeatability of the angle of the first support clamping ring 2 during the measurement process and further improves the accuracy of the three-dimensional center of gravity data acquisition. The drive shaft engages with the outer wall of the first support clamping ring 2 and the outer wall of the second support clamping ring 3. The drive shaft drives the first support clamping ring 2 to rotate and the drive shaft drives the second support clamping ring 3 to rotate. When measuring the center of gravity, the front and second support clamping rings 3 can be synchronously rotated to a preset angle, so that the test piece is subjected to balanced force during the flipping process. After rotating to the predetermined angle, the center of gravity of the test piece is measured.

[0061] To address issues such as the compatibility of the first and second support clamping rings 2 and 3 with different types of testing components and to improve the adjustment flexibility of the first and second support clamping rings 2 and 3, this embodiment, based on embodiment 1, also includes a support part 12 and a calibration assembly 8. The calibration assembly 8 is used to dynamically adjust the pressure and position of the front pusher 21 and the rear pusher 31 according to the actual size of the testing component, so that the front pusher 21 and the rear pusher 31 fit the end face contour of the testing component and apply uniform pressure, thereby achieving the effect of fixing the front and rear ends of testing components of different sizes.

[0062] The support part 12 includes a support column 121 and an adjustment control component 122. The adjustment control component 122 controls the height of the support column 121. The support column 121 provides lower support for the detection component. Before installing the detection component, the height of the support column 121 can be adjusted according to the size of the detection component to match detection components of different heights.

[0063] like Figure 5 As shown, it also includes a calibration assembly 8, which includes an assembly end 81, a calibration ratchet 82, and a locking assembly 83. The assembly end 81 is disposed on the inner wall of the outer ring and includes a hollow structure with one open end. One end of the calibration ratchet 82 is disposed in the assembly end 81, and a connecting gear is provided at the open end of the assembly end 81, which meshes with the calibration ratchet 82. The other end of the calibration ratchet 82 passes through the first through hole and the second through hole (and / or the third through hole and the fourth through hole). The front pusher 21 or the rear pusher 31 is disposed at the other end of the alignment ratchet 82. The front pusher 21 includes a front top 211 and a front flared portion 212, and the rear pusher 31 includes a rear top 311 and a rear flared portion 312. One end of the front top 211 (rear top 311) is fixedly connected to the alignment ratchet 82, and the front flared portion 212 (rear flared portion 312) is disposed at the other end of the front top 211 (rear top 311). The front flared portion 212 (rear flared portion 312) is connected to the rear ratchet 82. The front top 211 (rear top 311) is set at an angle; there are multiple adjustment parts, with multiple front horn sections 212 evenly distributed circumferentially along the front inner core ring 22, the front middle connecting ring 23 and / or the front outer contour ring 24, and multiple rear horn sections 312 evenly distributed circumferentially along the rear inner core ring 32, the rear middle connecting ring 33 and / or the rear outer contour ring 34. The multiple front horn sections 212 (rear horn sections 312) are arranged in a horn shape. When the detection piece is moved to the first support clamping ring 2 and the second support clamping ring 3... The detection piece contacts the front horn section 212 (rear horn section 312) and pushes it to open in all directions, causing the alignment ratchet 82 to slide through the first through hole and the second through hole and within the assembly end 81. The connecting gear rotates accordingly to adjust the opening range of the front horn section 212 (rear horn section 312). When the detection piece is fully inserted, the front horn section 212 (rear horn section 312) retracts under the action of the alignment ratchet 82 and closely adheres to the end face contour of the detection piece, achieving adaptive positioning and uniform pressure.

[0064] After the test piece is fully inserted between the first support clamping ring 2 and the second support clamping ring 3, how to solve the problem of locking the opening amplitude of the front pusher 21 or the rear pusher 31 so that the test piece remains stably clamped during subsequent flipping or measurement; such as Figure 3 and Figure 5 As shown, in this embodiment, the sliding position of the alignment ratchet 82 is locked by the locking assembly 83, preventing the alignment ratchet 82 from moving and thus fixing the opening range of the front pusher 21 or the rear pusher 31. The locking assembly 83 includes multiple rotating rods 831, multiple support seats 832, multiple locking parts 833, and a power supply component 834. The support seats 832 are disposed on the end face of the intermediate ring, and the multiple support seats 832 are evenly distributed along the circumference of the intermediate ring. The support seats 832 are disposed opposite to the alignment ratchet 82. The rotating rods 831 are rotatably disposed on the support seats 832, and the multiple rotating rods 831 form a polygonal structure with an opening. The power supply component 834 is disposed at one end of the opening of the multiple rotating rods 831, and adjacent rotating rods 831 rotate... The rod 831 is connected by a steering joint 835. The power supply component 834 is set on the rotating rod 831 at the opening position. The power supply component 834 drives the first rotating rod 831 to rotate. The first rotating rod 831 drives the remaining rotating rods 831 to rotate synchronously through the steering joint 835. This causes multiple locking parts 833 to rotate with the rotating rod 831 and lock into the tooth grooves on the side of the alignment ratchet 82, thereby achieving one-way locking of the alignment ratchet 82. When the test piece is fully in place, the power supply component 834 is activated. The locking parts 833 are quickly embedded into the corresponding positions of the alignment ratchet 82 under the drive of the rotating rod 831, preventing the alignment ratchet 82 from sliding, thereby locking the opening range of the front pusher 21 or the rear pusher 31, so that the test piece is stably clamped.

[0065] Furthermore, the locking part 833 includes a transmission rod 8331 and a locking part 8332. One end of the transmission rod 8331 is mounted on the rotating rod 831, and the other end of the transmission rod 8331 is fixedly connected to the locking part 8332. The locking part 8332 has a serrated mechanism that engages with the surface of the straightening ratchet 82 on the side facing the straightening ratchet 82. The locking part 8332 is made of an elastic material and can undergo slight deformation when the locking part 833 is embedded in the tooth groove to enhance the tightness of the engagement and prevent loosening due to vibration. After the serrated mechanism of the locking part 8332 is fully engaged with the tooth groove on the surface of the straightening ratchet 82, it achieves self-locking by relying on the preload generated by the elastic deformation. Even if the equipment is subjected to external impact or vibration during operation, it can maintain a stable locked state. At the same time, the elastic characteristics of the locking part 8332 can compensate for machining errors and assembly gaps, so that the force is evenly distributed when multiple locking parts 833 move synchronously, further improving the clamping reliability. After the center of gravity of the test piece is determined, the power supply component 834 reverses its operation, causing the rotating rod 831 to rotate in the opposite direction, so that the locking part 833 disengages from the tooth groove of the alignment ratchet 82 and releases the lock on the alignment ratchet 82.

[0066] like Figure 6 As shown, further, after the test piece completes the center of gravity test, how to solve the problem of rapid reset of the alignment ratchet 82 to adapt to the continuous testing requirements of test pieces of different sizes; in this embodiment, it further includes a restoration unit 9, which is disposed between the inner ring and the middle ring. The restoration unit 9 includes a restoration carrier 91, a return component 92 and a restoration spring 93. The restoration carrier 91 is fixed on the outer wall of the middle ring, and the return component 92 is rotatably disposed on the restoration carrier 91. The return component 92 meshes with the teeth of the alignment ratchet 82. One end of the restoration spring 93 is connected to the restoration carrier 91 and the other end is connected to the return component 92. When the detection component is installed on the first support clamping ring 2 or the second support clamping ring 3, the detection component pushes the alignment ratchet 82 to move outward. The alignment ratchet 82 drives the return component 92 to rotate, causing the return spring 93 to twist and store energy. When the detection component is removed, the locking component 83 releases its lock on the alignment ratchet 82, and the elastic potential energy stored in the return spring 93 is released, driving the return component 92 to rotate in the opposite direction, thereby driving the alignment ratchet 82 to slide inward and quickly retract to the initial position. This reset process does not require an additional power source and relies on mechanical energy storage to achieve automatic reset, which is fast and reliable.

[0067] like Figure 3As shown, further, to improve the efficiency and accuracy of transporting the test pieces to the center of gravity calibration device, a conveying assembly 10 is also included. The conveying assembly 10 includes a conveyor belt 101, a conveyor shaft 102, a conveyor belt support 103, a connecting frame 104, and a bottom movable frame 105. The bottom movable frame 105 includes a support rod and movable wheels. The movable wheels are located at the lower end of the support frame. The movement of the bottom movable frame 105 can drive the conveying assembly 10 to move. When testing is required, the conveying assembly 10 is moved to the test position. When testing is not required, the conveying assembly 10 can be moved away from the work area. The connecting frame 104 connects the bottom movable frame 105 and the conveyor belt support 103, making the overall structure of the conveying assembly 10 stable. There are multiple connecting frames 104, which are evenly distributed between the bottom movable frame 105 and the conveyor belt support 103, improving the overall load-bearing rigidity and deformation resistance. The conveyor belt 101 is mounted on the conveyor belt support 103 and is driven by the conveyor shaft 102 to achieve cyclic operation.

[0068] Furthermore, the center of gravity calibration device also includes a base 13, which includes an opening 131. The opening 131 includes a trumpet-shaped front end and a rear end. The opening 131 is coaxially arranged with the first support clamping ring 2 and the second support clamping ring 3. The bottom movable frame 105 of the conveying component 10 moves into the opening in a matching manner, so that the conveying component 10 can be accurately positioned and stably connected to the center of gravity calibration device.

[0069] like Figure 3 and Figure 4 As shown, the system further includes a liftable support frame 11, which is positioned between the first support clamping ring 2 and the second support clamping ring 3. The liftable support frame 11 includes a support base 111, a guide column 112, a power output shaft 113, a first transmission rod 114, a second transmission rod 115, and a lifting platform 116. The lifting platform 116 is mounted on the guide column 112 and can be raised and lowered via a slider. The power output shaft 113 is positioned below the lifting platform 116. One end of the first transmission rod 114 is mounted on the power output shaft 113, and the other end of the first transmission rod 114 is hinged to one end of the second transmission rod 115. The other end of the second transmission rod 115 is hinged to the support base 111. When the power output shaft 113 rotates, it causes the first transmission rod 114 to swing, pushing the second transmission rod 115 to rotate around the hinge point, thereby driving the lifting platform 116 to smoothly rise or fall along the guide column 112.

[0070] During the transport of the test piece, the second support clamping ring 3 moves on the sliding guide 4 to a position close to the first support clamping ring 2. The maximum height of the lifting platform 116 is the height of the transmission belt. The test piece conveyed by the transmission belt passes through the first support clamping ring 2 and is received by the second support clamping ring 3 after being transported to the lifting platform 116. The relative position between the second support clamping ring 3 and the test piece is determined according to the length of the test piece. When the conveyor belt 101 moves the test piece to this relative position, the locking component 83 on the second support clamping ring 3 fixes the test piece. As the transmission belt continues to convey, the second support clamping ring 3 retracts to the initial calibration position on the sliding guide 4. At this time, the lifting platform 116 descends smoothly under the drive of the power output shaft 113. The locking component 83 on the first support clamping ring 2 clamps the test piece simultaneously, achieving positioning at both ends. At this time, the axis of the test piece is vertically aligned with the measurement reference plane of the center of gravity calibration device, and the first weighing of the test piece is performed, and the center of gravity of the test piece is calculated. The first support clamping ring 2 and the second support clamping ring 3 work together to lock the test piece and rotate it 180° to perform a second weighing and center of gravity calculation on the test piece. After the center of gravity measurement is completed, the locking component 83 on the first support clamping ring 2 is released, while the locking component 83 on the second support clamping ring 3 remains locked. The second support clamping ring 3 moves the test piece forward on the sliding guide 4, and the lifting platform 116 rises back to the same height as the conveyor belt 101. The test piece moves with the second support clamping ring 3 to the discharge station, the locking component 83 is released, and the test piece is stably placed on the conveyor belt 101 and transported out by the conveyor belt 101.

[0071] Furthermore, the lifting and lowering of the liftable support frame 11 is linked to the movement of the second support clamping ring 3. A power rod is provided at the lower end of the second support clamping ring 3, and a front slider is provided on the power rod. The power rod is positioned opposite the power output shaft 113, which is a hollow shaft with a spiral groove on its inner wall. When the second support clamping ring 3 moves to the liftable support frame 11, the front slider on the power rod enters the hollow cavity of the power output shaft 113 and embeds itself in the spiral groove. As the power rod is inserted, it causes the power output shaft 113 to rotate, which in turn drives the lifting platform 116 to rise. Conversely, when the second support clamping ring 3 moves the detection element back, the power rod gradually withdraws from the hollow shaft, and the front slider moves in the opposite direction along the spiral groove, causing the power output shaft 113 to rotate in the opposite direction, thereby driving the lifting platform 116 to descend synchronously.

[0072] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for calibrating the centroid in multidimensional space, characterized in that, Includes the following steps: Step 1: On the sliding guide (4), the second support clamp (3) moves toward the first support clamp (2); Step 2: Place the test piece between the first support clamp (2) and the second support clamp (3); Step 3: Detect the weight of the test piece at the positions of the first support clamp (2) and the second support clamp (3) to calibrate the center of gravity of the test piece.

2. The multidimensional spatial centroid calibration method according to claim 1, characterized in that, Between step two and step three, the second support clamp (3) moves away from the first support clamp (2) on the sliding guide (4) and moves to the detection position.

3. The multidimensional spatial centroid calibration method according to claim 2, characterized in that, Step two also includes driving the front pusher (21) in the first support clamping ring (2) to clamp the test piece.

4. The multidimensional spatial centroid calibration method according to claim 2, characterized in that, Step two also includes driving the rear pusher (31) of the second support clamping ring (3) to clamp the test piece.

5. The multidimensional spatial centroid calibration method according to claim 4, characterized in that, The front pusher (21)(11) and the rear pusher (31) clamp the test piece simultaneously.

6. The multidimensional spatial centroid calibration method according to claim 1, characterized in that, It also includes step four, driving the first supporting clamp ring (2) to rotate 180° and driving the second supporting clamp ring (3) to rotate 180°.

7. The multidimensional spatial centroid calibration method according to claim 6, characterized in that, In step four, the first supporting clamp (2) and the second supporting clamp (3) rotate synchronously in a circular motion.

8. The multidimensional spatial centroid calibration method according to claim 7, characterized in that, It also includes step five, after rotating 180° in a circle, the first support clamp (2) and the second support clamp (3) test the weight of the test piece again and recalibrate the center of gravity of the test piece.

9. The multidimensional spatial centroid calibration method according to claim 8, characterized in that, Step six, the front pusher (21)(11) and the rear pusher (31) release the clamping of the test piece, and the test piece moves out from the first support clamp (2) and the second support clamp (3).

10. The multidimensional spatial centroid calibration method according to any one of claims 1 to 9, characterized in that, A multi-dimensional spatial center of gravity calibration device is used to calibrate the center of gravity of the test piece.

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