A standard sample based test meter error of indication calibration device

Abstract

The application discloses a kind of based on standard sample's test instrument indication error calibration device, it is related to instrument error calibration technical field, including main body mounting seat, main body mounting seat outer wall is fixedly connected with drive slide rail, drive slide rail outer wall is fixedly connected with mechanical support, mechanical support outer wall is fixedly connected with test instrument, main body mounting seat outer wall is provided with tensioning mechanism, main body mounting seat outer wall is symmetrically provided with pretreatment mechanism.The test instrument indication error calibration device based on standard sample of the application, through the pretreatment mechanism of being set, let cloth standard sample be repeatedly pre-tensioning operation multiple times before carrying out instrument indication error calibration work, by mechanical way, actively make it complete unrecoverable plastic deformation, so that it is in the state of tension as indication error calibration reference in final, in instrument indication error calibration time period, in stable state, to ensure the accuracy of error calibration precision.

Description

Technical Field

[0001] This invention relates to the field of instrument error calibration technology, and in particular to a test instrument indication error calibration device based on a standard sample. Background Technology

[0002] In the textile industry, non-contact measuring instruments such as laser scanners need to be calibrated regularly using standard fabric samples to check their indication errors. The accuracy of this calibration process depends on the stability and repeatability of the standard fabric sample itself. Because the fabric is flexible, the suspended part will naturally sag under the action of gravity. Without tensioning the standard sample of the fabric, it is unprofessional to perform error calibration work with non-contact measuring instruments such as laser scanners. The error calibration data obtained will be inaccurate and invalid. A standard fabric sample, especially a brand new one, has its internal fibers in a natural state. Tension is mainly used to overcome this initial state. If, after the initial tensioning of the fabric sample, it is immediately used for error calibration of non-contact measuring instruments such as laser scanners, the object referenced for error calibration is actually an object that is still deforming during the measurement time. As a result, the reference for instrument error calibration will drift in real time and be incorrectly recorded as the indication error of the measuring instrument, thus causing the instrument error calibration to lose its due accuracy. Summary of the Invention

[0003] The purpose of this invention is to provide a test instrument indication error calibration device based on a standard sample, so as to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a calibration device for the indication error of a test instrument based on a standard sample. The device includes a main mounting base, a drive slide rail fixedly connected to the outer wall of the main mounting base, a mechanical support fixedly connected to the outer wall of the drive slide rail, a test instrument fixedly connected to the outer wall of the mechanical support, a tensioning mechanism on the outer wall of the main mounting base, and pre-processing mechanisms symmetrically arranged on the outer wall of the main mounting base. The pre-processing mechanisms include a primary processing component located on the outer wall of the main mounting base, a secondary processing component, and a final processing component located on the outer wall of the main mounting base.

[0005] Preferably, the tensioning mechanism includes a drive assembly disposed on the outer wall of the main mounting base, a slide block threadedly connected to the outer wall of the drive assembly, a fixing assembly symmetrically disposed on the top of the slide block, a lifting assembly disposed on the bottom of the slide block, and a tensioning assembly symmetrically disposed on the bottom of the slide block.

[0006] Preferably, the drive assembly includes a servo motor fixedly connected to the outer wall of the main mounting base, threaded rods symmetrically rotatably connected to the inner wall of the main mounting base, one threaded rod being fixedly connected to the output end of the servo motor, the inner wall of the slide being threadedly connected to the outer walls of both threaded rods, a belt drive assembly being fixedly connected to the outer walls of both threaded rods, round rods being fixedly connected to the outer walls of both threaded rods, the outer walls of both round rods being rotatably connected to the inner wall of the main mounting base, and the inner wall of the slide being slidably connected to the outer walls of both round rods.

[0007] Preferably, the fixing assembly includes a housing 1 fixedly connected to the top of the slide block, the bottom of the housing 1 being slidably connected to the top of the slide block, a placement platform fixedly connected to the inner wall of the housing 1, a fixing plate 1 slidably connected to the inner wall of the housing 1, a rotating screw 1 rotatably connected to the top of the fixing plate 1, the outer wall of the rotating screw 1 being threadedly connected to the inner wall of the housing 1, a fixing plate 2 slidably connected to the inner wall of the housing 1, a rotating screw 2 rotatably connected to the outer wall of the fixing plate 2, and the outer wall of the rotating screw 2 being threadedly connected to the inner wall of the housing 1.

[0008] Preferably, the inner wall of the outer casing is symmetrically threaded with rotating screws three, and the outer walls of the two rotating screws three are rotatably connected with fixed plates three, and the outer walls of the two fixed plates three are slidably connected to the inner wall of the outer casing one.

[0009] Preferably, the lifting assembly includes a cylinder body 1 fixedly connected to the bottom of the slide block, a piston plate 1 slidably connected to the inner wall of the cylinder body 1, spring moving rods symmetrically slidably connected to the bottom of the piston plate 1, the outer walls of the two spring moving rods slidably connected to the inner wall of the cylinder body 1, a cylinder body 2 fixedly connected to the top of the cylinder body 1, the outer wall of the cylinder body 2 being connected to the top of the cylinder body 1 via an oil hose, the outer wall of the cylinder body 2 being fixedly connected to the inner wall of the slide block, a spring piston rod 1 slidably connected to the inner wall of the cylinder body 2, a lifting plate fixedly connected to the top of the spring piston rod 1, telescopic rods 1 fixedly connected to the four corners of the bottom of the lifting plate, the outer walls of the four telescopic rods 1 being fixedly connected to the inner wall of the slide block, and a number of spherical top rods slidably connected in a rectangular array on the inner wall of the lifting plate, the bottom of the number of spherical top rods being fixedly connected to compression springs, and the outer walls of the number of compression springs being fixedly connected to the inner wall of the lifting plate.

[0010] Preferably, the tensioning assembly includes a cylinder three fixedly connected to the bottom of the slide block, the outer wall of the cylinder three being connected to the top of the cylinder one through an oil supply pipe, and a spring piston rod two being slidably connected to the inner wall of the cylinder three, the outer wall of the spring piston rod two being fixedly connected to the inner wall of the outer shell one.

[0011] Preferably, the primary processing component includes a sloping chute fixedly connected to the outer wall of the main mounting base, a spring moving rod slidably connected to the inner wall of the sloping chute, a cylinder four fixedly connected to the inner wall of the sloping chute, a support plate slidably connected to the inner wall of the cylinder four, several pre-tightened spring slide rods fixedly connected to the bottom of the support plate, the outer walls of the several pre-tightened spring slide rods slidably connected to the inner wall of the cylinder four, a piston plate two fixedly connected to the bottom of the several pre-tightened spring slide rods, the outer wall of the piston plate two slidably connected to the inner wall of the cylinder four, several throttling holes opened on the inner wall of the cylinder four, and a spring sliding plate slidably connected to the inner wall of the cylinder four.

[0012] Preferably, the intermediate processing component includes an undulating slide groove fixed to the outer wall of the main mounting base, a spring moving rod slidably connected to the outer wall of the undulating slide groove, a pressure sensor fixedly connected to the inner wall of the undulating slide groove, vibrators symmetrically fixedly connected to the bottom of the lifting plate, and tension sensors fixedly connected to the bottom of the lifting plate.

[0013] Preferably, the final processing component includes an undulating slide groove two fixed to the outer wall of the main mounting base, a spring moving rod slidably connected to the inner wall of the undulating slide groove two, a docking plate fixedly connected to the outer wall of the slide base, a stop rod symmetrically fixedly connected to the outer wall of the docking plate, an insert plate slidably connected to the inner wall of the docking plate, a spring one symmetrically fixedly connected to the outer wall of the insert plate, both springs one being fixedly connected to the inner wall of the docking plate, a slot being provided at the top of the insert plate, a housing two fixedly connected to the outer wall of the main mounting base, a spring buffer plate fixedly connected to the outer wall of the housing two, a cylinder five fixedly connected to the inner wall of the housing two, a spring piston rod three slidably connected to the inner wall of the cylinder five, a cylinder six fixedly connected to the top of the housing two, the outer wall of the cylinder six being connected to the outer wall of the cylinder five through an oil supply hose, and a spring piston rod slidably connected to the inner wall of the cylinder six.

[0014] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows: This invention provides a test instrument indication error calibration device based on a standard sample. Through a pre-processing mechanism, the fabric standard sample undergoes repeated pre-tensioning operations before the instrument indication error calibration process. This mechanically and actively induces irreversible plastic deformation, ensuring that when the sample is finally tensioned and used as the indication error calibration benchmark, it remains stable and deformation-free throughout the calibration period, thus guaranteeing the accuracy of the error calibration. The device also includes an initial processing component, a mid-processing component, and a final processing component. During each of the repeated pre-tensioning operations, the fabric standard sample undergoes targeted detail processing, further ensuring the accuracy of the fabric standard sample as a benchmark during the error calibration period. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the drive component structure of the present invention; Figure 3 This is a schematic cross-sectional view of the fixing component structure of the present invention; Figure 4 This is a partial structural diagram of the tensioning mechanism of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the structure at point A in the middle; Figure 6 This is a partial cross-sectional schematic diagram of the tensioning mechanism of the present invention; Figure 7 This is a schematic diagram of the pretreatment mechanism of the present invention; Figure 8 This is a schematic diagram of the initial processing component structure of the present invention; Figure 9 This is a schematic cross-sectional view of the initial processing component structure of the present invention; Figure 10 This is a schematic cross-sectional view of the mid-section processing component structure of the present invention; Figure 11 This is a partial cross-sectional view of the final processing component of the present invention; Figure 12 This is a partial cross-sectional view of the final processing component of the present invention; Figure 13 For the present invention Figure 12 Schematic diagram of the structure at point B.

[0016] In the diagram: 1. Main mounting base; 2. Drive slide rail; 3. Mechanical support; 4. Testing instrument; 5. Tensioning mechanism; 51. Slide; 52. Drive assembly; 521. Servo motor; 522. Belt drive assembly; 523. Threaded rod; 524. Round rod; 53. Fixing assembly; 531. Outer shell one; 532. Placement platform; 533. Rotating screw one; 534. Fixing plate one; 535. Rotating screw two; 536. Fixing plate two; 537. Rotating screw three; 538. Fixing plate three; 54. Lifting assembly; 541. Cylinder one; 542. Piston plate one; 543. Spring moving rod; 544. Cylinder two; 545. Spring piston rod one; 546. Lifting plate; 547. Telescopic rod one; 548. Spherical top rod; 549. Compression spring; 55. Tensioning assembly 551. Spring piston rod II; 552. Cylinder III; 6. Pre-treatment mechanism; 61. Primary treatment assembly; 611. Sloping chute; 612. Cylinder IV; 613. Support plate; 614. Pre-tightened spring slide rod; 615. Piston plate II; 616. Throttling orifice; 617. Spring slide plate; 62. Intermediate treatment assembly; 621. Undulating chute I; 622. Pressure sensor; 623. Vibrator; 624. Tension sensor; 63. Final treatment assembly; 631. Undulating chute II; 632. Connecting plate; 633. Push rod; 634. Insert plate; 635. Spring I; 636. Slot; 637. Outer shell II; 638. Spring buffer plate; 639. Spring piston rod III; 6310. Cylinder V; 6311. Cylinder VI; 6312. Spring piston insert rod. Detailed Implementation

[0017] 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.

[0018] Specific implementation examples are given below.

[0019] Example 1, please refer to Figure 1 - Figure 7 A calibration device for the indication error of a test instrument based on a standard sample includes a main mounting base 1, a drive slide rail 2 fixedly connected to the outer wall of the main mounting base 1, a mechanical support 3 fixedly connected to the outer wall of the drive slide rail 2, a test instrument 4 fixedly connected to the outer wall of the mechanical support 3, a tensioning mechanism 5 provided on the outer wall of the main mounting base 1, and pre-processing mechanisms 6 symmetrically arranged on the outer wall of the main mounting base 1. The pre-processing mechanism 6 includes a primary processing component 61 provided on the outer wall of the main mounting base 1, a middle processing component 62 and a final processing component 63 provided on the outer wall of the main mounting base 1. The tensioning mechanism 5 includes a drive assembly 52 disposed on the outer wall of the main mounting base 1, a slide 51 threadedly connected to the outer wall of the drive assembly 52, a fixing assembly 53 symmetrically disposed on the top of the slide 51, a lifting assembly 54 disposed on the bottom of the slide 51, and a tensioning assembly 55 symmetrically disposed on the bottom of the slide 51. The drive assembly 52 includes a servo motor 521 fixedly connected to the outer wall of the main body mounting base 1. Threaded rods 523 are symmetrically rotatably connected to the inner wall of the main body mounting base 1. The outer wall of one threaded rod 523 is fixedly connected to the output end of the servo motor 521. The inner wall of the slide block 51 is threadedly connected to the outer walls of both threaded rods 523. A belt drive assembly 522 is fixedly connected to the outer walls of both threaded rods 523. Round rods 524 are fixedly connected to the outer walls of both threaded rods 523. The outer walls of both round rods 524 are rotatably connected to the inner wall of the main body mounting base 1. The inner wall of the slide block 51 is slidably connected to the outer walls of both round rods 524. The fixing assembly 53 includes a first housing 531 fixedly connected to the top of the slide block 51. The bottom of the first housing 531 is slidably connected to the top of the slide block 51. A placement platform 532 is fixedly connected to the inner wall of the first housing 531. A fixing plate 534 is slidably connected to the inner wall of the first housing 531. A rotating screw 533 is rotatably connected to the top of the fixing plate 534. The outer wall of the rotating screw 533 is threadedly connected to the inner wall of the first housing 531. A second fixing plate 536 is slidably connected to the inner wall of the first housing 531. A second rotating screw 535 is rotatably connected to the outer wall of the second fixing plate 536. The outer wall of the second rotating screw 535 is threadedly connected to the inner wall of the first housing 531. The inner wall of the outer shell 531 is symmetrically threaded with rotating screws 537. The outer walls of the two rotating screws 537 are rotatably connected with fixed plates 538. The outer walls of the two fixed plates 538 are slidably connected to the inner wall of the outer shell 531. The lifting assembly 54 includes a cylinder body 541 fixedly connected to the bottom of the slide block 51. A piston plate 542 is slidably connected to the inner wall of the cylinder body 541. Spring moving rods 543 are symmetrically slidably connected to the bottom of the piston plate 542. The outer walls of the two spring moving rods 543 are slidably connected to the inner wall of the cylinder body 541. A cylinder body 544 is fixedly connected to the top of the cylinder body 541. The outer wall of the cylinder body 544 is connected to the top of the cylinder body 541 through an oil hose. The outer wall of the cylinder body 544 is fixedly connected to the inner wall of the slide block 51. 4. A spring piston rod 545 is slidably connected to the inner wall. A lifting plate 546 is fixedly connected to the top of the spring piston rod 545. Telescopic rods 547 are fixedly connected to the four corners of the bottom of the lifting plate 546. The outer walls of the four telescopic rods 547 are fixedly connected to the inner wall of the slide block 51. Several spherical top rods 548 are slidably connected to the inner wall of the lifting plate 546 in a rectangular array. Compression springs 549 are fixedly connected to the bottom of the several spherical top rods 548. The outer walls of the several compression springs 549 are fixedly connected to the inner wall of the lifting plate 546. The tensioning assembly 55 includes a cylinder body 3 552 fixedly connected to the bottom of the slide block 51. The outer wall of the cylinder body 3 552 is connected to the top of the cylinder body 1 541 through an oil pipeline. A spring piston rod 2 551 is slidably connected to the inner wall of the cylinder body 3 552. The outer wall of the spring piston rod 2 551 is fixedly connected to the inner wall of the outer casing 1 531.

[0020] The aforementioned drive slide rail 2 is a gear and rack slide structure, mainly used to drive the mechanical support 3 to move, thereby adjusting the position of the mechanical support 3 and the testing instrument 4, facilitating the error calibration of the testing instrument 4 based on the standard sample. It is a mature technical means in the existing technology, and its structure and working principle will not be elaborated further in this solution. The aforementioned mechanical support 3 is a mature technology in the existing technology. This solution only borrows its function of supporting, fixing or adjusting the position and angle of the testing instrument 4, and will not elaborate on its structure and working principle. The aforementioned testing instrument 4 represents a variety of non-contact instruments used to calibrate indication errors based on standard fabric samples. The connection between the threaded rod 523 and the round rod 524 on the same side adopts a gradual transition and high-precision docking process to ensure that the slide 51 can achieve a smooth and impact-free transition from the threaded rod 523 to the round rod 524 during the operation of this device. The structural design of the hydraulic oil section in the aforementioned lifting assembly 54 and the structural design of the two tensioning assemblies 55 both constitute the hydraulic oil structure in the prior art. The diameter of the hydraulic oil delivery hose between cylinder 2 544 and cylinder 1 541 is larger than the diameter of the hydraulic oil delivery hose between cylinder 3 552 and cylinder 1 541, and its total length is also greater than the total length of the hydraulic oil delivery hose between cylinder 3 552 and cylinder 1 541. In this solution, by using two different designs of hydraulic oil delivery pipe diameters and lengths, the hydraulic oil first enters the connecting pipe between cylinder 3 552 and cylinder 1 541 during the hydraulic oil compression and delivery process, and drives the structure in the tensioning assembly 55 to operate, and then drives the structure in the lifting assembly 54 to operate, thereby realizing the tensioning operation of stretching first and then lifting, avoiding the simultaneous operation of the two and causing damage to the standard sample of the fabric; In a specific implementation of the present invention, the device is placed in a suitable position where the instrument indication error can be calibrated based on the standard sample, and the test instrument 4 is fixed on the mechanical support 3. In the initial state, the spring moving rod 543 is located in the low horizontal section of the primary processing component 61 near the servo motor 521. The standard fabric sample is placed on the placement platform 532 in a suitable position, so that the top of the placement platform 532 and the second fixing plate 536 are facing the side wall of the placement platform 532, and the two third fixing plates 538 are respectively facing the side wall of the placement platform 532 with a suitable length of standard fabric sample. At this time, rotating the first rotating screw 533, the second rotating screw 535 and the two third rotating screws 537 causes the first fixing plate 534, the second fixing plate 536 and the two third fixing plates 538 to move, and respectively fix the facing standard fabric sample on the placement platform 532. Based on the above, the other side of the standard fabric sample is fixed to the fixing component 53 on the other side in the same way. At this time, the standard fabric sample rests on the lifting plate 546 and several spherical top rods 548 in a natural, untensioned state. During placement, the standard fabric sample covers the side walls of the two fixed plates 538 on the placement platform 532, and is fixed in place by the two rotating screws 537 and the two fixed plates 538. This way, when the two outer shells 531 move to stretch the standard fabric sample, the two edges of the standard fabric sample will not shrink towards the center due to the force, resulting in wrinkles. This would prevent the standard fabric sample from being flat after tensioning, thus affecting the normal operation of the subsequent error calibration of the testing instrument 4. The servo motor 521 is turned on to drive the threaded rod 523 to rotate. Under the action of the belt drive group 522, both threaded rods 523 rotate, which in turn causes both round rods 524 to rotate, driving the slide block 51 to move towards the round rod 524. The slide block 51 moves, causing the two spring moving rods 543 to move in the two pre-treatment mechanisms 6 respectively. During the movement, the spring moving rods 543 first slide in the primary treatment component 61. When both spring moving rods 543 move to the undulating section in the primary treatment component 61, both spring moving rods 543 are squeezed and slide upward in the cylinder 1 541, thereby driving the piston plate 1 542 to slide upward in the cylinder 1 541, squeezing the hydraulic oil between the piston plate 1 542 and the cylinder 1 541, and squeezing the hydraulic oil into the cylinder 2 544 and the two cylinder 3 552 respectively through the oil delivery hose. The hydraulic oil squeezed into the two cylinders 552 drives the two spring piston rods 551 to slide away from the round rod 524, thereby causing the two outer shells 531 to slide away from the round rod 524, thus realizing the stretching operation of the standard fabric sample. After stretching the standard fabric sample, hydraulic oil enters the cylinder 2 544 and drives the spring piston rod 1 545 to move upward, which in turn drives the lifting plate 546 to move upward, thereby driving several spherical top rods 548 to move upward, lifting the standard fabric sample and thus completing the tensioning operation of the standard fabric sample. When the lifting plate 546 moves upward to lift the standard fabric sample, the standard fabric sample first contacts several spherical top rods 548. As the lifting continues, each spherical top rod 548, in conjunction with the compression spring 549, will independently compress to different degrees according to the local pressure in contact with the standard fabric sample. Finally, under the reaction force of the compression spring 549, the several spherical top rods 548 reach a balance with the standard fabric sample, adaptively forming a support surface that best matches the stress distribution of the standard fabric sample at that time.

[0021] Example 2, as Figure 7 - Figure 13 As shown, the initial processing component 61 includes a gentle slope groove 611 fixedly connected to the outer wall of the main mounting base 1. The outer wall of the spring moving rod 543 is slidably connected to the inner wall of the gentle slope groove 611. A cylinder 612 is fixedly connected to the inner wall of the gentle slope groove 611. A support plate 613 is slidably connected to the inner wall of the cylinder 612. Several pre-tightened spring slide rods 614 are fixedly connected to the bottom of the support plate 613. The outer walls of the several pre-tightened spring slide rods 614 are slidably connected to the inner wall of the cylinder 612. A piston plate 615 is fixedly connected to the bottom of the several pre-tightened spring slide rods 614. The outer wall of the piston plate 615 is slidably connected to the inner wall of the cylinder 612. Several throttling holes 616 are opened on the inner wall of the cylinder 612. A spring slide plate 617 is slidably connected to the inner wall of the cylinder 612. The intermediate processing component 62 includes an undulating slide groove 621 fixed to the outer wall of the main mounting base 1, a spring moving rod 543 slidably connected to the outer wall of the undulating slide groove 621, a pressure sensor 622 fixedly connected to the inner wall of the undulating slide groove 621, a vibrator 623 symmetrically fixedly connected to the bottom of the lifting plate 546, and a tension sensor 624 fixedly connected to the bottom of the lifting plate 546. The final processing component 63 includes an undulating slide groove 631 fixed to the outer wall of the main mounting base 1. A spring moving rod 543 is slidably connected to the inner wall of the undulating slide groove 631 at its outer wall. A mating plate 632 is fixedly connected to the outer wall of the slide base 51. Abutment rods 633 are symmetrically fixedly connected to the outer wall of the mating plate 632. An insert plate 634 is slidably connected to the inner wall of the mating plate 632. Springs 635 are symmetrically fixedly connected to the outer wall of the insert plate 634. Both springs 635 are fixedly connected to the inner wall of the mating plate 632 at their outer walls. The top of the insert plate 634 is open. The device has a slot 636. A second outer shell 637 is fixedly connected to the outer wall of the main mounting base 1. A spring buffer plate 638 is fixedly connected to the outer wall of the second outer shell 637. A fifth cylinder 6310 is fixedly connected to the inner wall of the second outer shell 637. A third spring piston rod 639 is slidably connected to the inner wall of the fifth cylinder 6310. A sixth cylinder 6311 is fixedly connected to the top of the second outer shell 637. The outer wall of the sixth cylinder 6311 is connected to the outer wall of the fifth cylinder 6310 through an oil hose. A third spring piston rod 6312 is slidably connected to the inner wall of the sixth cylinder 6311.

[0022] The structural designs of the hydraulic oil components in the primary processing component 61 and the final processing component 63 described above both constitute the hydraulic oil structure in the prior art. The slope design of the undulating road section in the above-mentioned gentle slope chute 611 is gentler than the slope design of the undulating road sections in undulating chute 1 621 and undulating chute 2 631. The buffer structure in the primary processing component 61 is located at the horizontal section of the transition area between the uphill section and the highest horizontal section of the undulating road section in the gentle slope chute 611. The preload of the preload springs in the several preload spring slide rods 614 makes the weight that the support plate 613 can bear greater than the total weight of the components that the support plate 613 needs to support when the spring moving rod 543 is on it under normal static conditions. When the support plate 613 is impacted by the movement of the spring moving rod 543, the support plate 613 will produce a slight downward displacement. The two vibrators 623 mentioned above are motors capable of generating directional, high-frequency, short-term, and micro-amplitude vibrations. They, along with the pressure sensor 622 and the tension sensor 624, are all mature technologies in the prior art. The three are interconnected. The tension sensor 624 monitors the tension of the fabric standard sample in real time. When the two vibrators 623 operate and act on the fabric standard sample, causing its tension change to reach a preset threshold, an electrical signal is automatically sent to the two vibrators 623, causing the two vibrators 623 to stop vibrating. The pressure sensor 622 is installed in the undulating chute 621 at the horizontal section of the transition area between the highest horizontal section and the downhill section of the undulating section. The aforementioned slot 636 is rounded. The spring piston rod 6312 is composed of a rigid rod and a spherical block that is rotatably connected to its end. A torsion spring is added to the rotatable connection between the spherical block and the rigid rod, so that after the spherical block is deformed under force, it can return to its initial state when no force is applied. The aforementioned spring buffer plate 638 is composed of a receiving plate, several telescopic rods that are fixedly connected to both the receiving plate and the outer wall of the outer shell 637, and springs, wherein several springs are respectively sleeved on the outer wall of several telescopic rods; In a specific implementation of the present invention, when the servo motor 521 is turned on, causing the two threaded rods 523 to rotate and drive the slide block 51 to move continuously toward the round rod 524, the two spring moving rods 543 slide in the two gentle slope grooves 611 respectively. The spring moving rod 543 first moves from the low horizontal section to the undulating section in the gentle slope chute 611. Then, the two spring moving rods 543 are squeezed, and as described above, the tensioning mechanism 5 operates to achieve the initial tensioning operation of the standard fabric sample. When the spring moving rod 543 moves downhill from the high point of the undulating road section to the low point of the horizontal road section within the gentle slope chute 611, both spring moving rods 543 are no longer compressed. Under the reaction force of the springs set on the two spring moving rods 543, the two spring moving rods 543 slide downward within the cylinder 541, thereby driving the piston plate 542 to slide downward. At this time, the hydraulic oil in cylinder 1 541 is no longer squeezed, so the hydraulic oil in cylinder 2 544 and the two cylinders 3 552 is no longer squeezed. Under the reaction force of the springs on spring piston rod 2 551 and spring piston rod 1 545, the two spring piston rods 2 551 respectively drive the outer shell 1 531 on the same side to slide towards spring piston rod 1 545, no longer stretching the fabric standard sample. Spring piston rod 1 545 slides down, driving the lifting plate 546 and several spherical top rods 548 to slide down and no longer lift the fabric standard sample. At this time, the fabric standard sample returns from a tense state to a naturally relaxed state. When the spring moving rod 543 moves from the low horizontal section in the gentle slope chute 611 to the undulating section in the undulating chute 621, both spring moving rods 543 are also squeezed, causing the tensioning mechanism 5 to operate, and to perform a second tensioning and relaxation process on the standard fabric sample that has been initially tensioned and then returned to a relaxed state. When the spring moving rod 543 moves in the low horizontal section of the undulating slide 621, the fabric standard sample is in a relaxed state after being tensioned again. After the spring moving rod 543 moves from this point to the undulating section of the undulating slide 631, when the slide block 51 moves to the designated position, both spring moving rods 543 are in the high horizontal section of the undulating slide 631, and both spring moving rods 543 are in a compressed state. Therefore, the fabric standard sample is in a tensioned state at this time. Then, the testing instrument 4 is turned on, and the indication error is calibrated based on the fabric standard sample after being tensioned several times. In this solution, the standard fabric sample is repeatedly pre-tensioned before the instrument reading error calibration. This mechanical method quickly and actively induces irreversible plastic deformation, ensuring that the fabric is in a stable internal state when it is finally in a tensioned state as a reference. As a result, the fabric will not deform in real time during the instrument reading error calibration period, thus losing its significance as a reference and affecting the accuracy of the final error calibration. When the spring moving rod 543 moves from the low-lying horizontal section to the undulating uphill section in the gentle slope chute 611, the spring moving rod 543 begins to be compressed. At this time, the tensioning mechanism 5 starts to operate and tensions the standard sample of the fabric. Since the standard fabric sample is in its original, natural state when the tensioning mechanism 5 performs the initial tensioning operation on the standard fabric sample in the initial processing component 61, most of the unrecoverable deformation occurs when the standard fabric sample in this state is tensioned to induce plastic deformation. The slope of the gentle slope chute 611 in this scheme is designed to be relatively gentle. Thus, when the spring moving rod 543 is squeezed while moving on the undulating section of the gentle slope chute 611, the process of the tensioning mechanism 5 continuing to tension the standard fabric sample is relatively slow. This prevents the tensioning speed and amplitude from being too large during this process, which could impact the standard fabric sample and cause local damage to the weak points of the standard fabric sample fibers. When the spring-moving rod 543 moves from the uphill position to the higher level of the undulating road section, it first passes the support plate 613. At this moment, the impact force generated by the spring-moving rod 543, which is in motion and has just reached its highest position, overcomes the preload force of the spring on the preload spring slide rod 614, causing the support plate 613 to move downward slightly. The downward movement of the support plate 613 drives several preload spring slide rods 614 to move downward, thereby driving the piston plate 615 downward within the cylinder 612. The movement compresses the hydraulic oil between the piston plate 2 615 and the cylinder 4 612. The hydraulic oil is squeezed into the cavity of the cylinder 4 612, which is equipped with a spring slide plate 617, through several throttle holes 616. By utilizing the resistance of the pre-tensioned spring and the hydraulic oil being squeezed, the impact force of the spring moving rod 543 when it enters the highest horizontal section from the uphill section is buffered, thereby further improving the stability of the tensioning mechanism 5 in the tensioning work of the standard fabric sample at the initial processing component 61. When cylinder 2 544 moves to the horizontal section of the undulating slide 1 621, where the fabric standard sample is at a higher level, the fabric standard sample is in a taut state. As it transitions from the horizontal section to the downward slope section, the fabric standard sample begins to change from a taut state to a naturally relaxed state. The spring moving rod 543 passes the position where the pressure sensor 622 is set. The pressure sensor 622 detects the pressure change and transmits electrical signals to both vibrators 623 and the tension sensor 624, causing both vibrators 623 to operate and vibrate the spring moving rod 543 in a directional, high-frequency, short-term, and micro-amplitude manner. This vibrates the fabric standard sample, which is currently in a taut state and is about to relax but has not yet relaxed. This allows the fabric standard sample, which has consumed most of its large tension plastic potential after being tensioned, to eliminate the small, recoverable wrinkles caused by the initial tension deformation in some areas before it is tensioned again and begins to relax. This allows the fabric standard sample to fully relax during the re-tensioning process. When the spring-moving rod 543 moves to the higher position of the undulating section within the undulating chute 631, the standard fabric sample is under tension. At this time, both threaded rods 523 rotate, and the slide block 51 has not yet reached the designated stop position. The slide block 51 will continue to drive the docking plate 632 forward. During the movement, a portion of the slide block 51 will disengage from the threaded rods 523 and begin to enter the connection area with the round rod 524. At this time, the docking plate 632 will first contact the spring buffer plate 638, causing compression on the spring buffer plate 638. The spring buffer plate 638, without affecting the movement of the slide block 51, provides support to the slide block 51, which is about to stop moving. The buffering mechanism ensures that when the slide 51 reaches its final stop position during movement, the threaded rod 523 remains rotating. This design allows the slide 51 to transition from the threaded rod 523 to the round rod 524 before finally stopping. This, combined with the buffering effect of the spring buffer plate 638, reduces the impact of vibrations, backlash of the threaded pair, and rotational inertia on the tension of the fabric standard sample after it finally stops. This ensures the stability and reliability of the final tension of the fabric standard sample when used as a calibration reference, thereby guaranteeing the accuracy of subsequent instrument indication error calibration. After the docking plate 632 contacts the spring buffer plate 638, it continues to move. The insert plate 634 begins to insert into the outer shell 637. When it moves to a certain position, the docking plate 632 contacts the spring piston rod 639 and squeezes the spring piston rod 639 until the slide 51 moves to the position of the limit block set on the round rod 524. At this time, both abutments 633 are in contact with the outer shell 637. The slot 636 moves to the position directly opposite the spring piston insert rod 6312. The slide 51 stops moving and the servo motor 521 stops driving the threaded rod 523 and the round rod 524 to rotate. The spring piston rod 639 causes compression, which compresses the hydraulic oil between the spring piston rod 639 and the cylinder 6310. The hydraulic oil is squeezed into the cylinder 6311 through the delivery hose, driving the spring piston rod 6312 to move downward and insert into the slot 636, thereby fixing the slide 51 in the current position. This achieves rigid fixation of the slide 51 when it reaches the final position, further reducing the impact of backlash or small displacement during mechanical movement on the fabric standard sample that is finally in a stopped and tensioned state. At the same time, it ensures the accuracy of the fabric standard sample as a reference during error calibration.

[0023] The working principle of this invention is as follows: Place the device in a suitable position where the instrument indication error can be calibrated based on the standard sample, and fix the test instrument 4 on the mechanical support 3; In the initial state, the spring moving rod 543 is located in the horizontal section of the low slope chute 611. The standard sample of the fabric is fixed by two fixing components 53. The servo motor 521 is turned on to drive the threaded rod 523 to rotate, so that the two threaded rods 523 drive the slide block 51 to move towards the round rod 524. The spring moving rod 543 first moves from the low horizontal section to the undulating section in the gentle slope chute 611. The two spring moving rods 543 are squeezed and slide, which drives the piston plate 542 to slide upward in the cylinder 541. This squeezes the hydraulic oil between the piston plate 542 and the cylinder 541, and squeezes the hydraulic oil into the cylinder 544 and the two cylinders 552 through the oil delivery hose. The hydraulic oil, when compressed, first drives the two spring piston rods 551 to slide away from the round rod 524, thereby causing the two outer shells 531 to slide away from the round rod 524, thus achieving the stretching operation of the standard fabric sample. Then, it drives the spring piston rod 545 to move upward, causing the lifting plate 546 to move upward, thereby causing several spherical top rods 548 to move upward, lifting the standard fabric sample, thus completing the tensioning operation of the standard fabric sample. When the spring moving rod 543 moves from the uphill position to the high horizontal section of the undulating road section in the gentle slope chute 611, it first passes the support plate 613. At this time, the impact force generated by the spring moving rod 543, which is in the moving state and has just moved to the highest position, overcomes the preload force of the spring on the preload spring slide rod 614, causing the support plate 613 to move downward slightly, which compresses the hydraulic oil. By utilizing the resistance of the preload spring and the hydraulic oil being compressed, the impact force of the spring moving rod 543 when it enters the highest horizontal section from the uphill section is buffered in this process. When the spring moving rod 543 moves downhill from the high section of the undulating road to the low horizontal section within the gentle slope chute 611, both spring moving rods 543 are no longer compressed. At this time, the tensioning component 55 and the lifting component 54 no longer perform tensioning operations on the standard fabric sample. When the spring moving rod 543 moves from the low horizontal section in the gentle slope chute 611 to the undulating section in the undulating chute 621, both spring moving rods 543 are also squeezed, causing the tensioning mechanism 5 to operate, and to perform a second tensioning and relaxation process on the standard fabric sample that has been initially tensioned and then returned to a relaxed state. When cylinder 2 544 moves to the horizontal section of the undulating slide 621, where the fabric standard sample is at a higher level, the fabric standard sample is in a taut state. When it transitions from the horizontal section to the downward slope section, causing the fabric standard sample to change from a taut state to a naturally relaxed state, the spring moving rod 543 will pass the position where the pressure sensor 622 is set. The pressure sensor 622 will detect the pressure change and transmit electrical signals to both vibrators 623 and tension sensor 624, causing both vibrators 623 to run and perform directional, high-frequency, short-term and micro-amplitude vibration on the spring moving rod 543. Then, the spring moving rod 543 continues to move to the undulating section in the undulating chute 631. After the slide block 51 moves to the designated position and stops, the slide block 51 is in contact with both the threaded rod 523 and the round rod 524 on the same side. At this time, the spring piston rod 6312 on the same side is inserted into the slot 636, thereby fixing the slide block 51 in the final position. Then, the calibration of the indication error of the test instrument 4 is started using the standard fabric sample at this time.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A calibration device for the indication error of a test instrument based on a standard sample, comprising a main mounting base (1), characterized in that: A drive slide rail (2) is fixedly connected to the outer wall of the main mounting base (1). A mechanical bracket (3) is fixedly connected to the outer wall of the drive slide rail (2). A testing instrument (4) is fixedly connected to the outer wall of the mechanical bracket (3). A tensioning mechanism (5) is provided on the outer wall of the main mounting base (1). A pretreatment mechanism (6) is symmetrically provided on the outer wall of the main mounting base (1). The pretreatment mechanism (6) includes a primary treatment component (61) provided on the outer wall of the main mounting base (1). A middle-stage treatment component (62) and a final treatment component (63) are provided on the outer wall of the main mounting base (1). The tensioning mechanism (5) includes a drive assembly (52) disposed on the outer wall of the main mounting base (1), a slide (51) threadedly connected to the outer wall of the drive assembly (52), a fixing assembly (53) symmetrically disposed on the top of the slide (51), a lifting assembly (54) disposed on the bottom of the slide (51), and a tensioning assembly (55) symmetrically disposed on the bottom of the slide (51). The fixing assembly (53) includes a first outer shell (531) fixedly connected to the top of the slide (51), the bottom of the first outer shell (531) being slidably connected to the top of the slide (51), a placement platform (532) being fixedly connected to the inner wall of the first outer shell (531), a fixing plate (534) being slidably connected to the inner wall of the first outer shell (531), a rotating screw (533) being rotatably connected to the top of the fixing plate (534), the outer wall of the rotating screw (533) being threadedly connected to the inner wall of the first outer shell (531), a fixing plate (536) being slidably connected to the inner wall of the first outer shell (531), a rotating screw (535) being rotatably connected to the outer wall of the fixing plate (536), and the outer wall of the rotating screw (535) being threadedly connected to the inner wall of the first outer shell (531). The lifting assembly (54) includes a cylinder body one (541) fixedly connected to the bottom of the slide (51). A piston plate one (542) is slidably connected to the inner wall of the cylinder body one (541). Spring moving rods (543) are symmetrically slidably connected to the bottom of the piston plate one (542). The outer walls of the two spring moving rods (543) are slidably connected to the inner wall of the cylinder body one (541). A cylinder body two (544) is fixedly connected to the top of the cylinder body one (541). The outer wall of the cylinder body two (544) is connected to the top of the cylinder body one (541) through an oil hose. The outer wall of the cylinder body two (544) is fixedly connected to the inner wall of the slide (51). A spring piston rod (545) is slidably connected to the inner wall of the second (544). A lifting plate (546) is fixedly connected to the top of the spring piston rod (545). Telescopic rods (547) are fixedly connected to the four corners of the bottom of the lifting plate (546). The outer walls of the four telescopic rods (547) are fixedly connected to the inner wall of the slide block (51). Several spherical top rods (548) are slidably connected to the inner wall of the lifting plate (546) in a rectangular array. A compression spring (549) is fixedly connected to the bottom of the several spherical top rods (548). The outer walls of the several compression springs (549) are fixedly connected to the inner wall of the lifting plate (546). The initial processing component (61) includes a gentle slope groove (611) fixedly connected to the outer wall of the main mounting base (1). The outer wall of the spring moving rod (543) is slidably connected to the inner wall of the gentle slope groove (611). A cylinder four (612) is fixedly connected to the inner wall of the gentle slope groove (611). A support plate (613) is slidably connected to the inner wall of the cylinder four (612). Several pre-tightened spring slide rods (614) are fixedly connected to the bottom of the support plate (613). The outer walls of several pre-tightening spring slide rods (614) are slidably connected to the inner walls of cylinder four (612). The bottoms of several pre-tightening spring slide rods (614) are fixedly connected to piston plate two (615). The outer walls of piston plate two (615) are slidably connected to the inner walls of cylinder four (612). Several throttling holes (616) are opened on the inner walls of cylinder four (612). Spring slide plate (617) is slidably connected to the inner walls of cylinder four (612). The mid-section processing component (62) includes an undulating slide groove (621) fixed to the outer wall of the main mounting base (1), the outer wall of the spring moving rod (543) is slidably connected to the inner wall of the undulating slide groove (621), a pressure sensor (622) is fixedly connected to the inner wall of the undulating slide groove (621), a vibrator (623) is symmetrically fixedly connected to the bottom of the lifting plate (546), and a tension sensor (624) is fixedly connected to the bottom of the lifting plate (546). The final processing component (63) includes an undulating groove two (631) fixed to the outer wall of the main mounting base (1). The outer wall of the spring moving rod (543) is slidably connected to the inner wall of the undulating groove two (631). A docking plate (632) is fixedly connected to the outer wall of the slide base (51). A stop rod (633) is symmetrically fixedly connected to the outer wall of the docking plate (632). An insert plate (634) is slidably connected to the inner wall of the docking plate (632). A spring one (635) is symmetrically fixedly connected to the outer wall of the insert plate (634). The outer walls of both springs one (635) are fixedly connected to the inner wall of the docking plate (632). The top of the insert plate (634) is... The main body mounting base (1) is provided with a slot (636). The outer wall of the main body mounting base (1) is fixedly connected to the outer shell (637). The outer wall of the outer shell (637) is fixedly connected to the spring buffer plate (638). The inner wall of the outer shell (637) is fixedly connected to the cylinder body (6310). The inner wall of the cylinder body (6310) is slidably connected to the spring piston rod (639). The top of the outer shell (637) is fixedly connected to the cylinder body (6311). The outer wall of the cylinder body (6311) is connected to the outer wall of the cylinder body (6310) through an oil hose. The inner wall of the cylinder body (6311) is slidably connected to the spring piston rod (6312).

2. The instrument indication error calibration device based on a standard sample according to claim 1, characterized in that: The drive assembly (52) includes a servo motor (521) fixedly connected to the outer wall of the main mounting base (1). Threaded rods (523) are symmetrically rotatably connected to the inner wall of the main mounting base (1). The outer wall of one side of the threaded rod (523) is fixedly connected to the output end of the servo motor (521). The inner wall of the slide (51) is threadedly connected to the outer walls of the two threaded rods (523). A belt drive assembly (522) is fixedly connected to the outer walls of the two threaded rods (523). Round rods (524) are fixedly connected to the outer walls of the two threaded rods (523). The outer walls of the two round rods (524) are rotatably connected to the inner wall of the main mounting base (1). The inner wall of the slide (51) is slidably connected to the outer walls of the two round rods (524).

3. The instrument indication error calibration device based on a standard sample according to claim 1, characterized in that: The inner wall of the outer shell (531) is symmetrically threaded with rotating screws (537), and the outer walls of the two rotating screws (537) are rotatably connected with fixed plates (538). The outer walls of the two fixed plates (538) are slidably connected to the inner wall of the outer shell (531).

4. The instrument indication error calibration device based on a standard sample according to claim 1, characterized in that: The tensioning assembly (55) includes a cylinder three (552) fixedly connected to the bottom of the slide (51). The outer wall of the cylinder three (552) is connected to the top of the cylinder one (541) through an oil pipeline. A spring piston rod two (551) is slidably connected to the inner wall of the cylinder three (552). The outer wall of the spring piston rod two (551) is fixedly connected to the inner wall of the outer shell one (531).

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