Mobile six-component sensor calibration device

Abstract

The utility model discloses a mobile six-component sensor calibration device, which relates to the technical field of sensor calibration and comprises a calibration frame, the upper end and the lower end of the calibration frame are fixedly connected with fixing plates, the fixing plates are fixedly connected with mounting plates through fixing mechanisms, and the mounting plates are fixedly connected onto a six-component test bench through bolts. The calibration frame is fixedly connected with a pressure applying part, the pressure applying part is fixedly connected with a fixing block, the fixing block is fixedly connected with a six-component sensor, the pressure applying part is provided with a detection unit used for calibrating the six-component sensor, and the calibration frame is fixedly connected to a six-component test bench through a fixing mechanism. The six-component sensor can be mounted on the six-component sensor rack without dismounting the six-component sensor, so that mounting errors are avoided, and the effect of mobility is achieved; the calibration frame is made of an aluminum alloy material, so that manual operation can be facilitated; by switching the limiting blocks, the calibration of force and torque in all directions by one standard sensor can be realized, and the cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of sensor calibration technology, specifically a mobile six-component force sensor calibration device. Background Technology

[0002] The wheel six-component force sensor is a high-precision sensor used to measure radial force, lateral force, tangential force, rolling torque, rollover torque and overturning torque of a tire under combined working conditions. It can sensitively capture the dynamic force and torque changes of the tire under various working conditions, thereby analyzing the dynamic mechanical performance of the tire.

[0003] Since wheel force sensors are frequently used in dynamic testing, their accuracy can change over time. Current technology involves disassembling the force sensor and calibrating it on a designated calibration platform. However, after disassembling and reassembling many six-component force sensors used on test benches, the change in their mechanical position can affect the accuracy of the measurement data. As the sensor is a high-precision component, disassembly and movement pose a risk of collision. Furthermore, the sensor is heavy, requiring a specific hoisting mechanism on-site for manual operation. Frequent disassembly can cause wear on the sensor mounting points, affecting installation accuracy and thus reducing test accuracy.

[0004] Based on this, a mobile six-component force sensor calibration device is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a mobile six-component force sensor calibration device to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A mobile six-component force sensor calibration device includes a calibration frame, with fixed plates fixedly connected to the upper and lower ends of the calibration frame. The fixed plates are fixedly connected to a mounting plate via a fixing mechanism. The mounting plate is fixedly connected to a six-component force test bench by bolts. A pressure-applying component is fixedly connected to the calibration frame, and a fixed block is fixedly connected to the pressure-applying component. A six-component force sensor is fixedly connected to the fixed block. The pressure-applying component is provided with a detection unit for calibrating the six-component force sensor.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0009] In one alternative embodiment: the pressure-applying component includes an X-axis sliding sleeve, a Y-axis sliding sleeve, and a Z-axis sliding sleeve. The X-axis sliding sleeve is fixedly connected to the calibration frame along the X-axis direction, the Y-axis sliding sleeve is fixedly connected to the calibration frame along the Y-axis direction, and the Z-axis sliding sleeve is fixedly connected to the calibration frame along the Z-axis direction. Sliding blocks are slidably connected to the X-axis, Y-axis, and Z-axis sliding sleeves. A hydraulic rod is fixedly connected to the sliding block, and the output end of the hydraulic rod is fixedly connected to a fixed block. A sliding groove is provided at the end of each of the X-axis, Y-axis, and Z-axis sliding sleeves away from the calibration frame. A limiting block is slidably connected to the sliding groove, and a limiting module for limiting the limiting block is provided in the sliding groove.

[0010] In one alternative: the limiting module includes two locking blocks, which are slidably connected in a slot in a sliding groove. A spring is provided in the slot, one end of which is fixedly connected to the locking block, and the other end of which is fixedly connected to the slot.

[0011] In one alternative: the detection unit includes a pressure sensor, a fixing groove is provided on the limiting block on the X-axis sliding sleeve, the pressure sensor is fixedly connected in the fixing groove, the pressure sensor is electrically connected to a sensor display, and the sensor display is fixedly connected to the calibration frame.

[0012] In one alternative embodiment: the fixing mechanism includes four pins, which are slidably connected to corresponding holes on the fixing plate and the mounting plate. Each pin has a through hole, and an annular protrusion is fixedly connected to the inner surface of the through hole. A limiting rod is slidably connected to the through hole. One end of the limiting rod is fixedly connected to a button, and the other end of the limiting rod has a limiting groove. A second spring is provided at the outer end of the limiting rod. One end of the second spring is fixedly connected to the button, and the other end of the second spring is fixedly connected to the annular protrusion. Two spheres are provided at the limiting groove. A movable groove I that mates with the spheres is provided on the pin, and a movable groove II that mates with the spheres is provided on the surface of the hole.

[0013] In one alternative: the hydraulic rod is electrically connected to a manual hydraulic adjuster, which is fixedly connected to the calibration frame.

[0014] In one alternative: the four insertion posts are evenly distributed on the fixing plate.

[0015] In one alternative: the calibration frame is made of aluminum alloy.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention uses a fixing mechanism to securely connect the calibration frame to the six-component force test bench, and the six-component force sensor is fixed on the calibration frame. The six-component force sensor can be installed onto the six-component force sensor bench without disassembling it, avoiding accuracy degradation due to installation errors and wear caused by repeated disassembly, thus achieving portability. The calibration frame is made of lightweight aluminum alloy, facilitating manual operation. The pressure sensor can be switched between the X-axis, Y-axis, and Z-axis sliding sleeves via a limiting block. A single standard sensor can calibrate the force and torque in all directions of the six-component force sensor, saving costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the X-axis sliding sleeve of this utility model.

[0020] Figure 3 This is a cross-sectional view of the present invention.

[0021] Figure 4 This is a schematic diagram of the limiting module of this utility model.

[0022] Figure 5 This is a schematic diagram of the fixing mechanism of this utility model.

[0023] Figure reference numerals: 100, calibration frame; 101, fixing plate; 102, mounting plate; 103, fixing block; 200, six-component force sensor; 301, X-axis sliding sleeve; 302, Y-axis sliding sleeve; 303, Z-axis sliding sleeve; 304, sliding block; 305, hydraulic rod; 306, sliding groove; 307, limiting block; 401, locking block; 402, locking groove; 403, spring one; 501, pressure sensor; 502, fixing groove; 503, sensor display; 601, insertion post; 602, through hole; 603, annular protrusion; 604, limiting rod; 605, button; 606, limiting groove; 607, spring two; 608, ball; 609, movable groove one; 610, movable groove two; 611, insertion hole; 700, manual hydraulic adjuster. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] In one embodiment, such as Figures 1-5As shown, a mobile six-component force sensor calibration device includes a calibration frame 100. The upper and lower ends of the calibration frame 100 are fixedly connected to a fixing plate 101. The fixing plate 101 is fixedly connected to a mounting plate 102 via a fixing mechanism. The mounting plate 102 is fixedly connected to a six-component force test bench by bolts. A pressure-applying component is fixedly connected to the calibration frame 100. The pressure-applying component is fixedly connected to a fixing block 103. A six-component force sensor 200 is fixedly connected to the fixing block 103. The pressure-applying component is equipped with a detection unit for calibrating the six-component force sensor. The calibration frame is fixedly connected to the six-component force test bench via the fixing mechanism, and the six-component force sensor 200 is fixed to the calibration frame. The six-component force sensor can be installed on the six-component force sensor bench without disassembling it, avoiding accuracy degradation caused by installation errors and wear caused by repeated disassembly. This achieves portability. During calibration, pressure is applied to the six-component force sensor 200 by the pressure-applying component. The detection unit detects the pressure and compares it with the detection result of the six-component force sensor 200 to perform calibration.

[0026] In this embodiment, as Figure 2-4 As shown, the pressure-applying component includes an X-axis sliding sleeve 301, a Y-axis sliding sleeve 302, and a Z-axis sliding sleeve 303. The X-axis sliding sleeve 301 is fixedly connected to the calibration frame 100 along the X-axis direction, the Y-axis sliding sleeve 302 is fixedly connected to the calibration frame 100 along the Y-axis direction, and the Z-axis sliding sleeve 303 is fixedly connected to the calibration frame 100 along the Z-axis direction. A sliding block 304 is slidably connected to each of the X-axis sliding sleeve 301, Y-axis sliding sleeve 302, and Z-axis sliding sleeve 303. The sliding block 304 is fixedly connected to a hydraulic rod 305, and the output end of the hydraulic rod 305 is fixedly connected to a fixed block 103. The moving sleeve 301, the Y-axis sliding sleeve 302, and the Z-axis sliding sleeve 303 are all provided with sliding grooves 306 at the ends away from the calibration frame 100. Limiting blocks 307 are slidably connected in the sliding grooves 306. Limiting modules for limiting the limiting blocks 307 are provided in the sliding grooves 306 to fix the six-component force sensor 200. The limiting blocks 307 are slidably connected in the sliding grooves 306. Pressure is applied to the fixed block 103 by hydraulic rods 305 in the X, Y, and Z directions. The sliding block 304 slides in the X-axis sliding sleeve 301, the Y-axis sliding sleeve 302, and the Z-axis sliding sleeve 303, and applies force to the detection unit to perform calibration.

[0027] In one embodiment, such as Figure 4As shown, the limiting module includes two locking blocks 401. The locking blocks 401 are slidably connected in the locking slots 402 in the sliding groove 306. A spring 403 is provided in the locking slot 402. One end of the spring 403 is fixedly connected to the locking block 401, and the other end of the spring 403 is fixedly connected to the locking slot 402. When the limiting block 307 is slid into the sliding groove 306, the locking block 401 will retract into the locking slot 402 and compress the spring 403. When the limiting block 307 moves into place, the locking block 401 will reset under the action of the spring 403, thus fixing the limiting block 307.

[0028] In one embodiment, such as Figure 1 and Figure 3 As shown, the detection unit includes a pressure sensor 501. A fixing groove 502 is provided on the limiting block 307 of the X-axis sliding sleeve 301. The pressure sensor 501 is fixedly connected in the fixing groove 502. The pressure sensor 501 is electrically connected to a sensor display 503, which is fixedly connected to the calibration frame 100. The pressure sensor 501 is fixed in the fixing groove 502 on the limiting block 307. A hydraulic rod 305 in the X-axis sliding sleeve 301 extends out as an output rod, causing a sliding block 304 to slide within the X-axis sliding sleeve 301 and contact the surface of the pressure sensor 501. This allows the pressure sensor 501 to detect the force applied to the fixing block 103 by the hydraulic rod 305, thus completing the X-axis detection. The sliding block 304 on the X-axis sliding sleeve 301 is then replaced with the sliding blocks 304 on the Y-axis sliding sleeve 302 and the Z-axis sliding sleeve 303, respectively, to detect along the Y and Z axes.

[0029] In one embodiment, such as Figure 5As shown, the fixing mechanism includes four insertion pins 601, which are slidably connected to corresponding insertion holes 611 on the fixing plate 101 and the mounting plate 102. Each insertion pin 601 has a through hole 602, and an annular protrusion 603 is fixedly connected to the inner surface of the through hole 602. A limiting rod 604 is slidably connected to the through hole 602. One end of the limiting rod 604 is fixedly connected to a button 605, and the other end of the limiting rod 604 has a limiting groove 606. A second spring 607 is provided at the outer end of the limiting rod 604. One end of the second spring 607 is fixedly connected to the button 605, and the other end of the second spring 607 is fixedly connected to the annular protrusion 603. Two spheres 608 are provided at the limiting groove 606. The insertion post 601 is provided with a movable groove 609 that mates with the spheres 608. The surface of the insertion hole 611 is provided with a movable groove 610 that mates with the spheres 608. When installing the calibration frame 100, the insertion post 601 is inserted into the insertion hole 611. The spheres 608 mate with the movable groove 610, thereby fixing the calibration frame 100 to the mounting plate 102. When disassembly is required, the button 605 is pressed. The button 605 moves the limiting rod 604 downward and compresses the spring 607. The spheres 608 retract into the limiting groove 606, and the insertion post 601 can be pulled out, thereby removing the calibration frame 100.

[0030] In one embodiment, such as Figure 1 As shown, the hydraulic rod 305 is electrically connected to the manual hydraulic regulator 700, which is fixedly connected to the calibration frame 100. The manual hydraulic regulator 700 adjusts the lifting and lowering of the hydraulic rod 305, thereby adjusting the force acting on the six-component force sensor 200, and thus calibrating the six-component force sensor 200.

[0031] In one embodiment, such as Figure 1 As shown, the four insertion posts 601 are evenly distributed on the fixing plate 101, making the calibration frame more stably fixed to the six-component force test bench and ensuring the normal operation of the device.

[0032] In one embodiment, such as Figure 1 As shown, the calibration frame 100 is made of aluminum alloy, which is lightweight and easy to operate manually.

[0033] The above embodiment discloses a mobile six-component force sensor calibration device. When installing the calibration frame 100, the insertion post 601 is inserted into the insertion hole 611, and the ball 608 cooperates with the movable groove 610, thereby fixing the calibration frame 100 to the mounting plate 102. When disassembly is required, pressing the button 605 causes the limit rod 604 to move downwards and compresses the spring 607. The ball 608 retracts into the limit groove 606, allowing the insertion post 601 to be pulled out, thus removing the calibration frame 100. When calibrating the six-component force sensor 200, the X-axis sliding sleeve 3 is controlled by the manual hydraulic adjuster 700. On 01, the hydraulic rod 305 extends out as an output rod, causing the sliding block 304 to slide in the X-axis sliding sleeve 301 and contact the surface of the pressure sensor 501. This allows the pressure sensor 501 to detect the force applied by the hydraulic rod 305 to the fixed block 103, thus completing the X-axis detection. The sliding block 304 on the X-axis sliding sleeve 301 is then replaced with the sliding blocks 304 on the Y-axis sliding sleeve 302 and the Z-axis sliding sleeve 303, respectively, to detect the Y-axis and Z-axis directions. The detected data is displayed on the sensor display 503. The calibration frame 100 is made of aluminum alloy, which is lightweight and easy to operate manually.

[0034] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A mobile six-component force sensor calibration device, comprising a calibration frame (100), wherein the upper and lower ends of the calibration frame (100) are fixedly connected to a fixing plate (101), characterized in that, The fixing plate (101) is fixedly connected to the mounting plate (102) by a fixing mechanism. The mounting plate (102) is fixedly connected to the six-component force test bench by bolts. The calibration frame (100) is fixedly connected to a pressure-applying component. The pressure-applying component is fixedly connected to a fixing block (103). The fixing block (103) is fixedly connected to a six-component force sensor (200). The pressure-applying component is provided with a detection unit for calibrating the six-component force sensor.

2. The mobile six-component force sensor calibration device according to claim 1, characterized in that, The pressure-applying component includes an X-axis sliding sleeve (301), a Y-axis sliding sleeve (302), and a Z-axis sliding sleeve (303). The X-axis sliding sleeve (301) is fixedly connected to the calibration frame (100) along the X-axis direction, the Y-axis sliding sleeve (302) is fixedly connected to the calibration frame (100) along the Y-axis direction, and the Z-axis sliding sleeve (303) is fixedly connected to the calibration frame (100) along the Z-axis direction. The X-axis sliding sleeve (301), Y-axis sliding sleeve (302), and Z-axis sliding sleeve (303) slide within each other. A connecting sliding block (304) is fixedly connected to a hydraulic rod (305). The output end of the hydraulic rod (305) is fixedly connected to a fixed block (103). The X-axis sliding sleeve (301), Y-axis sliding sleeve (302), and Z-axis sliding sleeve (303) are all provided with sliding grooves (306) at the ends away from the calibration frame (100). A limiting block (307) is slidably connected in the sliding groove (306). A limiting module for limiting the limiting block (307) is provided in the sliding groove (306).

3. The mobile six-component force sensor calibration device according to claim 2, characterized in that, The limiting module includes two locking blocks (401), which are slidably connected in the locking slot (402) in the sliding groove (306). A spring (403) is provided in the locking slot (402), one end of the spring (403) is fixedly connected to the locking block (401), and the other end of the spring (403) is fixedly connected to the locking slot (402).

4. The mobile six-component force sensor calibration device according to claim 2, characterized in that, The detection unit includes a pressure sensor (501), and a fixing groove (502) is provided on the limiting block (307) on the X-axis sliding sleeve (301). The pressure sensor (501) is fixedly connected in the fixing groove (502), and the pressure sensor (501) is electrically connected to a sensor display (503). The sensor display (503) is fixedly connected to the calibration frame (100).

5. The mobile six-component force sensor calibration device according to claim 1, characterized in that, The fixing mechanism includes four insertion posts (601), which are slidably connected to corresponding insertion holes (611) on the fixing plate (101) and the mounting plate (102). Each insertion post (601) has a through hole (602), and an annular protrusion (603) is fixedly connected to the inner surface of the through hole (602). A limiting rod (604) is slidably connected to the through hole (602), and a button (605) is fixedly connected to one end of the limiting rod (604). The other end of the limiting rod (604) is provided with a limit. The groove (606) has a spring (607) at the outer end of the limiting rod (604). One end of the spring (607) is fixedly connected to the button (605), and the other end of the spring (607) is fixedly connected to the annular protrusion (603). Two spheres (608) are provided at the limiting groove (606). The insert (601) has a movable groove (609) that mates with the spheres (608). The surface of the insertion hole (611) has a movable groove (610) that mates with the spheres (608).

6. The mobile six-component force sensor calibration device according to claim 2, characterized in that, The hydraulic rod (305) is electrically connected to a manual hydraulic regulator (700), which is fixedly connected to the calibration frame (100).

7. A mobile six-component force sensor calibration device according to claim 5, characterized in that, The four insertion posts (601) are evenly distributed on the fixing plate (101).

8. The mobile six-component force sensor calibration device according to claim 1, characterized in that, The calibration frame (100) is made of aluminum alloy.

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