Sensor performance detection device

Abstract

The invention relates to the technical field of sensor detection, in particular to a sensor performance detection device which comprises a base, a plurality of supporting frames are fixedly mounted at the lower end of the base, a mounting plate is fixedly mounted at the upper end of the base through a plurality of frame connecting rods, a clamping unit is mounted at the upper end of the base, and a vibration unit is mounted on the clamping unit. A pulling and pressing unit is mounted at the lower end of the mounting plate; the device is used for detecting the performance of the spoke type force sensor, force in the inclined direction can be applied to the spoke type force sensor, then the stress condition possibly encountered by the spoke type force sensor in actual use can be simulated, and the accuracy of the performance detection result of the spoke type force sensor is improved; meanwhile, the spoke type force sensor can be vibrated when the performance of the spoke type force sensor is detected, performance detection of the spoke type force sensor when the spoke type force sensor is used in a vibration environment is achieved, and the use quality of the spoke type force sensor in the vibration environment is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of sensor detection, and in particular to a sensor performance detection device. Background Art

[0002] A sensor is a detection device that can sense the information being measured and convert the sensed information into electrical signals or other required forms of information output according to certain rules to meet the requirements of information transmission, processing, storage, display, recording and control. Among them, the spoke force sensor is a force sensor based on a spoke elastomer structure design, which uses strain gauges to convert force changes into electrical signal output. It has the advantages of high-precision measurement and wide measurement range, and is widely used in mechanical manufacturing, aerospace and other fields.

[0003] like Fig. 9 As shown, the spoke-type force sensor usually consists of a force-bearing part, a strain gauge part and a rim. A threaded hole for connecting the measured component is opened in the middle of the force-bearing part. In order to ensure the measurement accuracy of the spoke-type force sensor, it usually requires performance testing.

[0004] When testing the performance of a spoke force sensor, the spoke force sensor is usually connected to an electrical signal measuring instrument, and pressure is applied to the force-bearing part of the spoke force sensor through a tension and pressure testing machine. The electrical signal changes measured by the electrical signal measuring instrument are observed to test whether the performance of the spoke force sensor meets the requirements.

[0005] The following problems exist in the performance testing of spoke force sensors: 1. The pressure applied to the force-bearing part of the spoke force sensor is usually in the vertical direction. However, when the spoke force sensor is actually used, its force-bearing part may be subjected to pressure in the inclined direction, thereby reducing the accuracy of the performance testing of the spoke force sensor; 2. When the performance of the spoke force sensor is tested, the spoke force sensor is in a stationary state. Since the spoke force sensor may be used in a vibrating environment and the vibration may cause inaccurate measurement results of the spoke force sensor, the quality of the spoke force sensor that has passed the test in the stationary state is reduced in a vibrating environment. Summary of the invention

[0006] In order to solve the above technical problems, the present invention adopts the following technical scheme: a sensor performance detection device, including a base, a plurality of support frames are fixedly installed on the lower end of the base, a mounting plate is fixedly installed on the upper end of the base through a plurality of connecting rods, a clamping unit is installed on the base, a vibration unit is installed together with the clamping unit and the base, and a tension and compression unit is installed at the lower end of the mounting plate; the clamping unit includes a synchronous member installed on the base, a plurality of L-shaped plates evenly arranged in the circumferential direction are installed on the synchronous member, the synchronous member is used to drive the plurality of L-shaped plates to move synchronously, and arc-shaped clamping plates are fixedly installed on opposite sides of the horizontal sections of the plurality of L-shaped plates; the vibration unit includes a connecting member jointly installed by the vertical sections of the plurality of L-shaped plates, and a connecting member is installed on the connecting member It is equipped with multiple impact rods evenly arranged in the circumference, and a rubber block is fixedly installed on the upper end of the impact rod. A matching piece is installed in the middle of the upper end of the base, and the matching piece is used to cooperate with the connecting piece to drive the impact rod to impact upward; the tension and compression unit includes a press installed in the middle of the lower end of the mounting plate, and a multi-stage electric push rod is installed at the lower end of the press, and a plug column is fixedly installed at the lower end of the multi-stage electric push rod. The outer side of the plug column is provided with two connecting sleeves symmetrically arranged up and down, and an annular groove is opened on the outer side of the connecting sleeve. Multiple circumferentially evenly arranged transmission parts are installed in the annular groove, and a pressure plate is installed on the side of the transmission part away from the connecting sleeve. An adjusting piece for cooperating with the transmission part to adjust the positions of the multiple pressure plates is installed between the multiple transmission parts and the plug column.

[0007] Preferably, the lower end of the vertical section of the L-shaped plate slides through the base, and the front-to-back symmetrical L-shaped plate is slidably installed on the base, and the left-right symmetrical L-shaped plate is slidably installed on the base, and the synchronous part includes an adjustment plate distributed in the middle part below the base, an adjustment screw is threadedly connected to the middle part of the adjustment plate, and the upper end of the adjustment screw is rotatably connected to the lower end of the base, and the position of the outer side of the adjustment plate corresponding to the L-shaped plate is hinged with an inclined rod, and the end of the inclined rod away from the adjustment plate is hinged to the corresponding lower end of the vertical section of the L-shaped plate.

[0008] Preferably, the transmission member includes an arc-shaped slider slidably installed in an annular groove, the end of the arc-shaped slider away from the connecting sleeve is hinged with a transmission rod, and the two transmission rods arranged up and down are inclined in a direction of approaching each other at one end away from the connecting sleeve, and the sliding sleeve at one end of the transmission rod away from the connecting sleeve is provided with a square sleeve, and the end of the square sleeve away from the transmission rod is hinged to its corresponding pressure plate.

[0009] Preferably, a detachable pin is installed on the upper end of the arc-shaped slider for sliding up and down, a plurality of circular holes evenly arranged circumferentially are opened on the upper end of the connecting sleeve, and the pin is detachably arranged in the circular hole, and the pin is used to cooperate with the circular hole to lock the position of the arc-shaped slider.

[0010] Preferably, a locking spring rod is slidably installed on the side of the square sleeve away from the plug column, and two locking holes evenly arranged along its length direction are opened on the side of the transmission rod away from the end of the connecting sleeve and opposite to the locking spring rod. The locking spring rod is used to cooperate with the locking hole to lock the position of the square sleeve.

[0011] Preferably, the adjusting member includes two adjusting sleeves which are symmetrically arranged up and down and are slidably mounted on the outside of the plug column, and the adjusting sleeve is located between the two connecting sleeves. A ring-shaped clearance groove is provided on the outside of the adjusting sleeve. A square rod is hingedly mounted at a position corresponding to the transmission rod in the clearance groove. A connecting block is hingedly mounted at one end of the square rod away from the adjusting sleeve. The connecting block is slidably connected to the transmission rod along the length direction of the transmission rod at a side away from the square rod.

[0012] Preferably, a synchronization plate is fixedly installed on the inner side of the adjustment sleeve through a plurality of connecting rods, and the synchronization plate is slidably arranged in the plug column up and down, and a double-headed screw is commonly installed on the two synchronization plates, and two threaded sections with opposite rotation directions are arranged on the double-headed screw. The synchronization plate is threadedly connected to its corresponding threaded section, and the double-headed screw and the plug column are rotationally connected, and the lower end of the double-headed screw rotates to pass through the plug column.

[0013] Preferably, the connecting member includes circular plates distributed below the horizontal sections of multiple L-shaped plates, and square plates are radially slidably installed at positions on the circular plates corresponding to the L-shaped plates. The square plates and the corresponding impact rods are slidably connected up and down, and synchronization rods are fixedly installed on one side of the multiple square plates close to the L-shaped plates, and the end of the synchronization rod away from the square plate radially slides through the circular plate and is fixedly connected to the corresponding vertical section of the L-shaped plate.

[0014] Preferably, the lower ends of the multiple impact rods slide up and down through their corresponding square plates and are radially slidably installed with a matching plate. The middle part of the upper end of the matching plate is connected to the circular plate through an impact spring, and the lower end of the matching plate is fixedly installed with multiple L-shaped rods evenly arranged circumferentially.

[0015] Preferably, the mating component includes a motor fixedly mounted in the middle of the upper end of the base, a rotating plate fixedly mounted on the motor output shaft, an integrated plate slidably mounted up and down above the rotating plate via a plurality of guide rods evenly arranged circumferentially, a threaded rod rotatably mounted on the outer side of the lower end of the integrated plate, and the threaded rod and the rotating plate are threadedly connected, a plurality of mating blocks of L-shaped structures evenly arranged circumferentially are fixedly mounted on the upper end of the integrated plate, and the horizontal section of the mating block is configured as an inclined surface for driving the L-shaped rod to move downward.

[0016] The beneficial effects of the present invention are: 1. The present invention applies pressure to the force-bearing part of the spoke-type force sensor by setting multiple pressure plates. The force applied to the force-bearing part of the spoke-type force sensor is the resultant force of the forces applied by the multiple pressure plates. At the same time, the present invention adjusts the positions of the multiple pressure plates by setting transmission parts and adjustment parts. When the multiple pressure plates are evenly distributed, the force-bearing part of the spoke-type force sensor is subjected to force in the vertical direction. When the multiple pressure plates are unevenly distributed, the resultant force direction of the forces applied by the multiple pressure plates is inclined, so that the force-bearing part of the spoke-type force sensor is subjected to pressure in the inclined direction. This can simulate the force conditions that the spoke-type force sensor may encounter in actual use, thereby increasing the accuracy of the performance test results of the spoke-type force sensor.

[0017] 2. The present invention arranges a plurality of impact rods to drive the rubber block to impact the spoke-type force sensor. Since the spoke-type force sensor is clamped and fixed by the clamping unit, the spoke-type force sensor vibrates under the impact of the rubber block, thereby ensuring the use quality of the spoke-type force sensor in a vibration environment.

[0018] 3. The present invention drives the matching block to rotate by setting a rotating plate and cooperates with the L-shaped rod to drive the rubber block to impact the spoke-type force sensor. At the same time, the present invention adjusts the vibration amplitude and vibration frequency of the spoke-type force sensor by adjusting the height of the matching block and the rotation speed of the matching block driven by the rotating plate, thereby further ensuring the quality of use of the spoke-type force sensor in a vibration environment.

[0019] 4. The present invention makes a certain number of pressure plates contact each other and apply force to the spoke-type force sensor, and at the same time slides the square sleeves corresponding to the remaining pressure plates so that the remaining pressure plates no longer apply force to the spoke-type force sensor, so that a certain number of pressure plates locally apply force to the force-bearing part of the spoke-type force sensor, and by controlling the number of contacting pressure plates and the position of the pressure plates, the area and position of the local pressure applied by the pressure plates on the force-bearing part of the spoke-type force sensor are adjusted, thereby simulating the situation where the force-bearing part of the spoke-type force sensor is subjected to local force, and further increasing the accuracy of the detection result of the spoke-type force sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the clamping unit and the vibration unit after a portion of the base is cut away according to the present invention.

[0023] Figure 3 It is a front view of the partial structure of the clamping unit and the vibration unit of the present invention.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the vibration unit after the circular plate and the matching plate are partially cut away.

[0025] Figure 5 It is a front view of the mounting plate and the tension and compression unit of the present invention.

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the tension and compression unit after a part of the tension and compression unit is cut away according to the present invention.

[0027] Figure 7 It is a cross-sectional view of the partial structure of the tension and compression unit of the present invention.

[0028] Figure 8 It is a three-dimensional structural schematic diagram of the transmission rod and the pressure plate after a part of the square sleeve is cut away.

[0029] Fig. 9 It is a schematic diagram of the three-dimensional structure of the spoke type force sensor.

[0030] Fig.10 These are the front view and top view of the plug post of the present invention when it is inserted into the threaded hole of the spoke-type force sensor.

[0031] Reference numerals: 1, base; 11, matching piece; 111, rotating plate; 112, guide rod; 113, integrated plate; 114, threaded rod; 115, matching block; 2, mounting plate; 3, clamping unit; 31, synchronous piece; 311, adjusting plate; 312, adjusting screw; 313, oblique rod; 32, L-shaped plate; 33, clamping plate; 4, vibration unit; 41, connecting piece; 411, round plate; 412, square plate; 413, synchronous rod; 414, matching plate; 415, impact spring; 416, L-shaped rod; 42, impact rod; 43, rubber block; 5, tension and compression unit; 51, press machine; 52, multi-stage electric push rod; 53, plug column; 54, connecting sleeve; 55, annular groove; 56, transmission part; 561, arc-shaped slider; 562, transmission rod; 563, square sleeve; 564, pin; 565, locking spring rod; 57, pressure plate; 58, adjusting part; 581, adjusting sleeve; 582, square rod; 583, connecting block; 584, synchronous plate; 585, double-headed screw. DETAILED DESCRIPTION

[0032] The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. If no specific techniques or conditions are specified in the embodiments, the techniques or conditions described in the literature in the art or the product instructions shall be followed.

[0033] See also Figure 1A sensor performance detection device includes a base 1, a plurality of support frames are fixedly installed at the lower end of the base 1, a mounting plate 2 is fixedly installed at the upper end of the base 1 through a plurality of connecting rods, a clamping unit 3 is installed on the base 1, a vibration unit 4 is installed together with the clamping unit 3 and the base 1, and a tension and compression unit 5 is installed at the lower end of the mounting plate 2.

[0034] The present invention is used to detect the performance of a spoke-type force sensor. The present invention can apply a force in an inclined direction to the spoke-type force sensor, thereby simulating the force conditions that the spoke-type force sensor may encounter in actual use, thereby increasing the accuracy of the performance detection results of the spoke-type force sensor. At the same time, the present invention can vibrate the spoke-type force sensor when detecting the performance of the spoke-type force sensor, thereby ensuring the use quality of the spoke-type force sensor in a vibration environment.

[0035] Specifically, first, the spoke force sensor is placed in the clamping unit 3, and the clamping unit 3 is controlled to clamp and fix the spoke force sensor. At the same time, the spoke force sensor is connected to an external electrical signal measuring instrument, and the initial value of the signal measured by the external electrical signal measuring instrument on the spoke force sensor is recorded. Then, the tension and compression unit 5 is controlled to be inserted into the threaded hole of the spoke force sensor, and the tension and compression unit 5 is controlled to apply a certain pressure to the spoke force sensor, and the change of the electrical signal measured by the external electrical signal measuring instrument is observed, so as to test whether the performance of the spoke force sensor is qualified.

[0036] Then, the vibration unit 4 is started to vibrate the spoke force sensor, and the changes in the electrical signal measured by the external electrical signal measuring instrument are observed, thereby testing whether the performance of the spoke force sensor when used in a vibration environment is qualified. Finally, the tension and compression unit 5 is controlled to stop applying pressure to the spoke force sensor and restore it to its initial position. At the same time, the vibration unit 4 is controlled to stop vibrating the spoke force sensor, and the signal measurement results of the spoke force sensor by the external electrical signal measuring instrument are read. If the signal measurement results of the spoke force sensor are restored to the initial value, it is qualified. Otherwise, it is unqualified. After the performance test of the spoke force sensor is completed, the clamping unit 3 is controlled to release the spoke force sensor, thereby being able to take out the spoke force sensor.

[0037] See also Figure 1 and Figure 2 The clamping unit 3 includes a synchronous member 31 installed on the base 1, and a plurality of L-shaped plates 32 evenly arranged in the circumferential direction are installed on the synchronous member 31. The synchronous member 31 is used to drive the plurality of L-shaped plates 32 to move synchronously, and arc-shaped clamping plates 33 are fixedly installed on opposite sides of the horizontal sections of the plurality of L-shaped plates 32.

[0038] The clamping unit 3 is used to clamp and fix the spoke-type force sensor; specifically, the spoke-type force sensor is placed on opposite sides of a plurality of clamping plates 33, and the synchronization member 31 is controlled to drive the plurality of clamping plates 33 to move toward each other through the L-shaped plate 32, so that the plurality of clamping plates 33 clamp and fix the spoke-type force sensor. After the performance test of the spoke-type force sensor is completed, the synchronization member 31 is controlled to drive the plurality of clamping plates 33 to move away from each other through the L-shaped plate 32, so that the spoke-type force sensor can be taken out.

[0039] See also Figure 2 The lower end of the vertical section of the L-shaped plate 32 slides through the base 1, and the front-to-back symmetrical L-shaped plate 32 slides front-to-back on the base 1, and the left-to-right symmetrical L-shaped plate 32 slides left-to-right on the base 1. The synchronous member 31 includes an adjustment plate 311 distributed in the middle part below the base 1, and an adjustment screw 312 is threadedly connected to the middle part of the adjustment plate 311, and the upper end of the adjustment screw 312 is rotatably connected to the lower end of the base 1. The outer side of the adjustment plate 311 corresponding to the position of the L-shaped plate 32 is hinged with an inclined rod 313, and the end of the inclined rod 313 away from the adjustment plate 311 is hinged to the corresponding lower end of the vertical section of the L-shaped plate 32.

[0040] The synchronization member 31 is used to drive the multiple L-shaped plates 32 to move synchronously; specifically, the adjustment plate 311 is driven downward by manually screwing the adjustment screw 312, so that the adjustment plate 311 drives the multiple L-shaped plates 32 to move synchronously in a direction close to each other through the inclined rod 313, and then the L-shaped plate 32 drives the multiple clamping plates 33 to move in a direction close to each other and clamp the spoke-type force sensor. Similarly, when the adjustment screw 312 is screwed to drive the adjustment plate 311 to move upward, the L-shaped plate 32 can drive the multiple clamping plates 33 to move in a direction away from each other and release the spoke-type force sensor.

[0041] It should be noted that, in the present invention, when the adjustment plate 311 moves to the limit position below the adjustment screw 312 , the L-shaped plate 32 can move to the limit position closest to the center of the base 1 .

[0042] See also Figure 5 and Fig.10 The tension and compression unit 5 includes a press machine 51 installed in the middle of the lower end of the mounting plate 2, a multi-stage electric push rod 52 is installed at the lower end of the press machine 51, a plug column 53 is fixedly installed at the lower end of the multi-stage electric push rod 52, and two connecting sleeves 54 symmetrically arranged up and down are fixedly sleeved on the outer side of the plug column 53, an annular groove 55 is opened on the outer side of the connecting sleeve 54, and a plurality of transmission members 56 evenly arranged in the circumferential direction are installed in the annular groove 55, and a pressure plate 57 is installed on the side of the transmission member 56 away from the connecting sleeve 54, and an adjusting member 58 for cooperating with the transmission member 56 to adjust the position of the plurality of pressure plates 57 is installed between the plurality of transmission members 56 and the plug column 53.

[0043] It should be noted that, see Fig.10 In the present invention, the pressure plate 57 is initially located at the extreme position closest to the center of the plug post 53, and at this time the pressure plate 57 can be inserted into the threaded hole of the force-bearing part of the spoke-type force sensor.

[0044] The tension and compression unit 5 is used to apply a certain pressure to the force-bearing part of the spoke-type force sensor; specifically, after the spoke-type force sensor is clamped and fixed, the multi-stage electric push rod 52 is controlled to finally drive the pressure plate 57 to move downward through the plug column 53 and the connecting sleeve 54, so that the plug column 53 is inserted into the threaded hole of the spoke-type force sensor, and the pressure plate 57 located on the upper side is located above the spoke-type force sensor, and the pressure plate 57 located on the lower side is located below the spoke-type force sensor, and then the adjustment member 58 and the transmission member 56 are controlled to cooperate to adjust the positions of the multiple pressure plates 57, so that the position of the pressure plate 57 corresponds to the force-bearing part of the spoke-type force sensor.

[0045] The multi-stage electric push rod 52 is controlled to extend downward again, so that the telescopic end of the multi-stage electric push rod 52 finally drives the corresponding pressure plate 57 to move downward through the plug column 53 and the upper connecting sleeve 54, so that the pressure plate 57 on the upper side is attached to the upper side of the force-bearing part of the spoke-type force sensor. Then, the press machine 51 is controlled to finally drive the pressure plate 57 on the upper side through the multi-stage electric push rod 52 to apply a certain pressure from top to bottom to the upper side of the force-bearing part of the spoke-type force sensor, and observe the changes in the electrical signals measured by the external electrical signal measuring instrument, so as to test whether the performance of the spoke-type force sensor is qualified when it is subjected to a certain pressure from top to bottom.

[0046] Similarly, when the pressure plate 57 located on the upper side applies downward pressure to the force-bearing part of the spoke-type force sensor and the performance test is completed, the control press 51 is reset, and then the multi-stage electric push rod 52 is controlled to retract upward, so that the telescopic end of the multi-stage electric push rod 52 finally drives the pressure plate 57 located on the lower side to fit the lower side of the force-bearing part of the spoke-type force sensor through the plug column 53 and the connecting sleeve 54, and then the control press 51 finally drives the pressure plate 57 located on the lower side through the multi-stage electric push rod 52 to apply upward pressure to the lower side of the force-bearing part of the spoke-type force sensor, thereby testing whether the performance of the spoke-type force sensor is qualified when it is subjected to a certain downward pressure, thereby realizing the performance test of the spoke-type force sensor.

[0047] See also Figure 6 The transmission member 56 includes an arc-shaped slider 561 slidably installed in the annular groove 55, and the end of the arc-shaped slider 561 away from the connecting sleeve 54 is hinged with a transmission rod 562, and the ends of the two transmission rods 562 arranged up and down are arranged inclined in a direction close to each other away from the connecting sleeve 54, and the end of the transmission rod 562 away from the connecting sleeve 54 is slidably sleeved with a square sleeve 563, and the end of the square sleeve 563 away from the transmission rod 562 is hinged to its corresponding pressure plate 57.

[0048] See also Figure 6 A detachable pin 564 is installed on the upper end of the arc-shaped slider 561 for sliding up and down. A plurality of circular holes evenly arranged circumferentially are opened on the upper end of the connecting sleeve 54, and the pin 564 is detachably arranged in the circular hole. The pin 564 is used to cooperate with the circular hole to lock the position of the arc-shaped slider 561.

[0049] The transmission member 56 is used to drive the pressure plate 57 to apply a certain pressure to the force-bearing part of the spoke-type force sensor; specifically, when the pressure plate 57 located on the upper side is attached to the upper side of the force-bearing part of the spoke-type force sensor, the press machine 51 is controlled to press down, so that the press machine 51 drives the pressure plate 57 to apply a certain pressure from top to bottom to the force-bearing part of the spoke-type force sensor through the multi-stage electric push rod 52, the connecting sleeve 54, the transmission rod 562 and the square sleeve 563. At this time, the pressure on the force-bearing part of the spoke-type force sensor is the resultant force of the pressure applied by the multiple pressure plates 57 located on the upper side, and because the multiple pressure plates 57 are evenly distributed, the force-bearing part of the spoke-type force sensor is subjected to pressure in the vertical direction at this time, thereby realizing the performance detection of the spoke-type force sensor when it is subjected to pressure in the vertical direction.

[0050] The press machine 51 is controlled to reset by pulling the pin 564 out of the round hole and manually sliding the multiple arc-shaped sliders 561 in the annular groove 55 in turn, so that the arc-shaped slider 561 drives the pressure plate 57 to move through the transmission rod 562 and the square sleeve 563, so that the multiple pressure plates 57 are unevenly distributed, and the pin 564 is inserted into the round hole to re-lock the arc-shaped slider 561, and then the press machine 51 is controlled to apply pressure again. At this time, the pressure on the force-bearing part of the spoke-type force sensor is the resultant force of the pressure applied by the multiple pressure plates 57 located on the upper side, and because the multiple pressure plates 57 are unevenly distributed, the direction of the resultant force of the pressure applied by the multiple pressure plates 57 is inclined, so that the force-bearing part of the spoke-type force sensor is subjected to pressure in the inclined direction.

[0051] Similarly, the pressure plate 57 located on the lower side can apply pressure in the vertical direction from bottom to top and pressure in the inclined direction to the force-bearing part of the spoke-type force sensor, thereby simulating the pressure conditions that the spoke-type force sensor may encounter in actual use, thereby increasing the accuracy of the performance test results of the spoke-type force sensor.

[0052] See also Figure 6 and Figure 7The adjusting member 58 includes two adjusting sleeves 581 symmetrically arranged up and down and slidably sleeved on the outside of the plug column 53, and the adjusting sleeve 581 is located between the two connecting sleeves 54. A ring-shaped clearance groove is opened on the outside of the adjusting sleeve 581. The position corresponding to the transmission rod 562 in the clearance groove is hinged with a square rod 582. The end of the square rod 582 away from the adjusting sleeve 581 is hinged with a connecting block 583. The side of the connecting block 583 away from the square rod 582 is slidably connected to the transmission rod 562 along the length direction of the transmission rod 562.

[0053] See also Figure 6 and Figure 7 A synchronization plate 584 is fixedly installed on the inner side of the adjustment sleeve 581 through multiple connecting rods, and the synchronization plate 584 is slidably arranged in the plug column 53 up and down. The two synchronization plates 584 are jointly installed with a double-headed screw 585, and the double-headed screw 585 is provided with two threaded sections with opposite rotation directions. The synchronization plate 584 is threadedly connected to its corresponding threaded section, the double-headed screw 585 and the plug column 53 are rotatably connected, and the lower end of the double-headed screw 585 rotates through the plug column 53.

[0054] The adjusting member 58 is used to cooperate with the transmission rod 562 to adjust the positions of the multiple pressure plates 57; specifically, by manually screwing the double-headed screw 585, the two synchronous plates 584 are driven to move in the direction away from each other, so that the synchronous plate 584 drives the two adjusting sleeves 581 to move in the direction away from each other through the connecting rod, and the adjusting sleeve 581 drives the connecting block 583 to move through the square rod 582, and the connecting block 583 and the transmission rod 562 are slidingly connected, and then when the two adjusting sleeves 581 move in the direction away from each other, at this time, the multiple transmission rods 562 can be used as a reference. The hinge between the transmission rod 562 and the arc-shaped slider 561 is used to rotate in the direction away from each other, and then the transmission rod 562 can synchronously adjust the positions of the multiple pressure plates 57 through the square sleeve 563, so that the position of the pressure plate 57 can correspond to the force-bearing part of the spoke-type force sensor.

[0055] See also Figure 8 A locking spring rod 565 is slidably installed on the side of the square sleeve 563 away from the plug column 53, and two locking holes evenly arranged along its length direction are provided on the side of the transmission rod 562 away from the end of the connecting sleeve 54 and opposite to the locking spring rod 565. The locking spring rod 565 is used to cooperate with the locking hole to lock the position of the square sleeve 563.

[0056] By pulling the pin 564 out of the round hole and manually sliding a certain number of arc-shaped sliders 561 in the annular groove 55 in turn, the arc-shaped slider 561 drives the pressure plate 57 to move through the transmission rod 562 and the square sleeve 563, so that a certain number of pressure plates 57 corresponding to the slid arc-shaped slider 561 are in contact, and the pin 564 is inserted into the round hole again to lock the arc-shaped slider 561 again, and then the locking spring rod 565 corresponding to the non-sliding arc-shaped slider 561 is pulled out of the locking hole, and the square sleeve 563 is manually slid to move in the direction close to its corresponding transmission rod 562, and the locking spring rod 565 is inserted into another locking hole to lock the position of the square sleeve 563, so that the slid square sleeve 563 is no longer in contact with the force-bearing part of the spoke-type force sensor.

[0057] When the press 51 applies pressure, a certain number of pressure plates 57 in contact can apply a certain local force to the force-bearing part of the spoke-type force sensor. By controlling the number of pressure plates 57 in contact and adjusting the position of the pressure plates 57 by screwing the double-headed screw 585, the area and position of the local force applied by the pressure plates 57 to the force-bearing part of the spoke-type force sensor are adjusted, thereby simulating the situation where the force-bearing part of the spoke-type force sensor is subjected to local force, thereby further increasing the accuracy of the detection results of the spoke-type force sensor.

[0058] See also Figure 1 and Figure 2 The vibration unit 4 includes a connecting piece 41 on which a plurality of vertical sections of L-shaped plates 32 are installed together. A plurality of impact rods 42 evenly arranged in the circumferential direction are installed on the connecting piece 41. A rubber block 43 is fixedly installed on the upper end of the impact rod 42. A matching piece 11 is installed in the middle of the upper end of the base 1. The matching piece 11 is used to cooperate with the connecting piece 41 to drive the impact rod 42 to impact upward.

[0059] The vibration unit 4 is used to vibrate the spoke force sensor; specifically, when the spoke force sensor is placed on opposite sides of multiple clamping plates 33, the lower end of the spoke force sensor is first brought into contact with the rubber block 43, and then the multiple clamping plates 33 clamp and fix the spoke force sensor. When the spoke force sensor needs to be vibrated, the matching piece 11 and the connecting piece 41 are controlled to cooperate to drive the impact rod 42 to impact upward, so that the impact rod 42 drives the rubber block 43 to impact the spoke force sensor upward. Since the rubber block 43 is made of rubber material and the spoke force sensor is clamped and fixed by multiple clamping plates 33 at this time, the spoke force sensor vibrates under the impact of the rubber block 43, thereby realizing the performance detection of the spoke force sensor in a vibration environment and ensuring the use quality of the spoke force sensor in a vibration environment.

[0060] See also Figure 2The connecting member 41 includes a circular plate 411 distributed below the horizontal sections of multiple L-shaped plates 32. Square plates 412 are radially slidably installed at the positions corresponding to the L-shaped plates 32 on the circular plate 411. The square plates 412 and their corresponding impact rods 42 are slidably connected up and down. Synchronous rods 413 are fixedly installed on one side of the multiple square plates 412 close to the L-shaped plates 32. The end of the synchronous rod 413 away from the square plate 412 radially slides through the circular plate 411 and is fixedly connected to the corresponding vertical section of the L-shaped plate 32.

[0061] See also Figure 3 and Figure 4 The lower ends of multiple impact rods 42 slide up and down, penetrate their corresponding square plates 412, and are radially slidably installed with a matching plate 414. The middle part of the upper end of the matching plate 414 is connected to the circular plate 411 through an impact spring 415, and the lower end of the matching plate 414 is fixedly installed with multiple L-shaped rods 416 evenly arranged circumferentially.

[0062] See also Figure 3 and Figure 4 The matching part 11 includes a motor fixedly mounted on the middle part of the upper end of the base 1, a rotating plate 111 is fixedly mounted on the motor output shaft, an integrated plate 113 is slidably mounted up and down above the rotating plate 111 through a plurality of circumferentially evenly arranged guide rods 112, a threaded rod 114 is rotatably mounted on the outer side of the lower end of the integrated plate 113, and the threaded rod 114 is threadedly connected to the rotating plate 111, a plurality of circumferentially evenly arranged L-shaped matching blocks 115 are fixedly mounted on the upper end of the integrated plate 113, and the horizontal section of the matching block 115 is configured as an inclined surface for driving the L-shaped rod 416 to move downward.

[0063] The matching piece 11 is used to cooperate with the connecting piece 41 to drive the impact rod 42 to impact upward; specifically, when the spoke-type force sensor is placed on the opposite side of the multiple clamping plates 33, first, the adjusting screw 312 is screwed through the adjusting plate 311 to finally drive the multiple L-shaped plates 32 to move in a direction close to each other, so that the L-shaped plate 32 drives the multiple clamping plates 33 to pre-clamp the spoke-type force sensor first, and at the same time, the L-shaped plate 32 drives the square plate 412 to move synchronously through the synchronization rod 413, so that the square plate 412 drives the impact rod 42 and the rubber block 43 to move to the corresponding position of the spoke-type force sensor, and then the lower end of the spoke-type force sensor is brought into contact with the rubber block 43 and the rubber block 43 and the impact rod 42 are compressed downward by a certain distance, so that the multiple impact rods 42 drive the matching plate 414 to move downward by a certain distance and stretch the impact spring 415, and then the multiple clamping plates 33 clamp and fix the spoke-type force sensor.

[0064] When the spoke-type force sensor needs to be vibrated, the control motor drives the rotating plate 111 to rotate clockwise, so that the rotating plate 111 drives the integrated plate 113 to rotate through the guide rod 112, and the integrated plate 113 drives the matching block 115 to rotate, so that the inclined surface of the matching block 115 and the horizontal section of the L-shaped rod 416 cooperate to drive the L-shaped rod 416 to move downward, and the L-shaped rod 416 drives the matching plate 414 to move downward and continue to stretch the impact spring 415. When the matching block 115 and the L-shaped rod 416 are separated, the matching plate 414 drives the rubber block 43 to impact the spoke-type force sensor through the impact rod 42 under the action of the impact spring 415, and the spoke-type force sensor is clamped and fixed by multiple clamping plates 33 at this time, so that the spoke-type force sensor vibrates under the impact of the rubber block 43.

[0065] By screwing the threaded rod 114 to drive the integrated board 113 to move up and down, the integrated board 113 drives the matching block 115 to move up and down, thereby realizing the height adjustment of the matching block 115, and realizing the adjustment of the downward movement distance of the matching plate 414 driven by the matching block 115 and the L-shaped rod 416, thereby realizing the adjustment of the stretching amount of the impact spring 415, thereby controlling the impact force of the rubber block 43 on the spoke force sensor, realizing the adjustment of the vibration amplitude of the spoke force sensor, and at the same time, by controlling the speed at which the motor drives the rotating plate 111 to rotate, the vibration frequency of the spoke force sensor is adjusted, further ensuring the quality of use of the spoke force sensor in a vibration environment.

[0066] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A sensor performance detection device, comprising a base (1), a plurality of support frames are fixedly mounted on the lower end of the base (1), a mounting plate (2) is fixedly mounted on the upper end of the base (1) via a plurality of connecting rods, a clamping unit (3) is mounted on the base (1), and is characterized in that: The clamping unit (3) and the base (1) are jointly equipped with a vibration unit (4), and the lower end of the mounting plate (2) is equipped with a tension and compression unit (5); The clamping unit (3) comprises a synchronous member (31) mounted on the base (1), a plurality of L-shaped plates (32) uniformly arranged in the circumferential direction are mounted on the synchronous member (31), the synchronous member (31) is used to drive the plurality of L-shaped plates (32) to move synchronously, and arc-shaped clamping plates (33) are fixedly mounted on opposite sides of the horizontal sections of the plurality of L-shaped plates (32); The vibration unit (4) comprises a connecting piece (41) on which a plurality of vertical sections of L-shaped plates (32) are installed together, a plurality of impact rods (42) evenly arranged in the circumferential direction are installed on the connecting piece (41), a rubber block (43) is fixedly installed on the upper end of the impact rod (42), and a matching piece (11) is installed in the middle of the upper end of the base (1), and the matching piece (11) is used to cooperate with the connecting piece (41) to drive the impact rod (42) to impact upward; The tension and compression unit (5) comprises a press machine (51) installed at the middle of the lower end of the mounting plate (2), a multi-stage electric push rod (52) is installed at the lower end of the press machine (51), a plug column (53) is fixedly installed at the lower end of the multi-stage electric push rod (52), the outer side of the plug column (53) is provided with two connecting sleeves (54) symmetrically arranged up and down, an annular groove (55) is opened on the outer side of the connecting sleeve (54), a plurality of transmission members (56) evenly arranged in the circumferential direction are installed in the annular groove (55), a pressure plate (57) is installed on the side of the transmission member (56) away from the connecting sleeve (54), and an adjusting member (58) for cooperating with the transmission member (56) to adjust the position of the plurality of pressure plates (57) is installed between the plurality of transmission members (56) and the plug column (53).

2. A sensor performance detection device according to claim 1, characterized in that: The lower end of the vertical section of the L-shaped plate (32) slides through the base (1), and the L-shaped plate (32) symmetrical in front and back is slidably mounted on the base (1), and the L-shaped plate (32) symmetrical in left and right is slidably mounted on the base (1). The synchronous member (31) comprises an adjustment plate (311) distributed in the middle of the lower part of the base (1), an adjustment screw (312) is threadedly connected to the middle part of the adjustment plate (311), and the upper end of the adjustment screw (312) is rotatably connected to the lower end of the base (1), and an inclined rod (313) is hingedly connected to the position of the outer side of the adjustment plate (311) corresponding to the L-shaped plate (32), and one end of the inclined rod (313) away from the adjustment plate (311) is hingedly connected to the lower end of the vertical section of the L-shaped plate (32) corresponding to it.

3. A sensor performance detection device according to claim 1, characterized in that: The transmission member (56) comprises an arc-shaped slider (561) slidably mounted in the annular groove (55); one end of the arc-shaped slider (561) away from the connecting sleeve (54) is hingedly connected to a transmission rod (562); and two transmission rods (562) arranged up and down are arranged with their ends away from the connecting sleeve (54) tilted in a direction approaching each other; one end of the transmission rod (562) away from the connecting sleeve (54) is slidingly sleeved with a square sleeve (563); one end of the square sleeve (563) away from the transmission rod (562) is hingedly connected to its corresponding pressure plate (57).

4. A sensor performance detection device according to claim 3, characterized in that: A detachable pin (564) is installed on the upper end of the arc-shaped slider (561) so as to slide up and down. A plurality of circular holes evenly arranged in the circumferential direction are opened on the upper end of the connecting sleeve (54), and the pin (564) is detachably arranged in the circular hole. The pin (564) is used to cooperate with the circular hole to lock the position of the arc-shaped slider (561).

5. A sensor performance detection device according to claim 3, characterized in that: A locking spring rod (565) is slidably mounted on the side of the square sleeve (563) away from the plug post (53); two locking holes evenly arranged along the length direction of the transmission rod (562) are provided on the side away from the end of the connecting sleeve (54) and opposite to the locking spring rod (565); the locking spring rod (565) is used to cooperate with the locking hole to lock the position of the square sleeve (563).

6. A sensor performance detection device according to claim 3, characterized in that: The adjusting member (58) comprises two adjusting sleeves (581) symmetrically arranged up and down and slidably sleeved on the outer side of the plug column (53), and the adjusting sleeve (581) is located between the two connecting sleeves (54). An annular paving groove is provided on the outer side of the adjusting sleeve (581), and a square rod (582) is hingedly connected at a position corresponding to the transmission rod (562) in the paving groove. A connecting block (583) is hingedly connected at one end of the square rod (582) away from the adjusting sleeve (581), and a side of the connecting block (583) away from the square rod (582) is slidably connected to the transmission rod (562) along the length direction of the transmission rod (562).

7. A sensor performance detection device according to claim 6, characterized in that: A synchronous plate (584) is fixedly installed on the inner side of the adjustment sleeve (581) via a plurality of connecting rods, and the synchronous plate (584) is slidably arranged in the plug column (53) up and down, and a double-headed screw (585) is installed together on the two synchronous plates (584), and the double-headed screw (585) is provided with two threaded sections with opposite rotation directions, and the synchronous plate (584) is threadedly connected to its corresponding threaded section, and the double-headed screw (585) and the plug column (53) are rotatably connected, and the lower end of the double-headed screw (585) rotates to penetrate the plug column (53).

8. A sensor performance detection device according to claim 1, characterized in that: The connecting member (41) comprises a circular plate (411) distributed below the horizontal sections of the plurality of L-shaped plates (32); square plates (412) are radially slidably mounted at positions on the circular plate (411) corresponding to the L-shaped plates (32); the square plates (412) and the corresponding impact rods (42) are slidably connected up and down; a synchronization rod (413) is fixedly mounted on one side of the plurality of square plates (412) close to the L-shaped plates (32); an end of the synchronization rod (413) away from the square plate (412) radially slides through the circular plate (411) and is fixedly connected to the vertical section of the corresponding L-shaped plate (32).

9. A sensor performance detection device according to claim 8, characterized in that: The lower ends of the plurality of impact rods (42) slide up and down and penetrate through their corresponding square plates (412) and are radially slidably mounted with a matching plate (414) together; the middle portion of the upper end of the matching plate (414) is connected to the circular plate (411) via an impact spring (415); and the lower end of the matching plate (414) is fixedly mounted with a plurality of L-shaped rods (416) evenly arranged in the circumferential direction.

10. A sensor performance detection device according to claim 9, characterized in that: The matching component (11) comprises a motor fixedly mounted on the middle part of the upper end of the base (1); a rotating plate (111) is fixedly mounted on the output shaft of the motor; an integrated plate (113) is slidably mounted above the rotating plate (111) via a plurality of circumferentially evenly arranged guide rods (112); a threaded rod (114) is rotatably mounted on the outer side of the lower end of the integrated plate (113); the threaded rod (114) and the rotating plate (111) are threadedly connected; a plurality of circumferentially evenly arranged L-shaped matching blocks (115) are fixedly mounted on the upper end of the integrated plate (113); a horizontal section of the matching block (115) is configured as an inclined surface for driving the L-shaped rod (416) to move downward.

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