Multi-component force sensor calibration device

Abstract

The utility model relates to the technical field of multi-component force sensor calibration, and provides a multi-component force sensor calibration device, which comprises a mechanism assembly, at least three groups of loading mechanisms, a multi-component force sensor, a sensor fixing seat assembly and a driving assembly, and is characterized in that the three groups of loading mechanisms are positioned in the X, Y and Z directions of the multi-component force sensor; the loading mechanisms are fixedly connected with the mechanism assembly, the three groups of loading mechanisms are mutually orthogonal in space, the multi-component force sensor is fixedly arranged on the sensor fixing seat assembly, and the sensor fixing seat assembly is in sliding connection with the mechanism assembly through the driving assembly. The calibration device of the multi-component force sensor is universal and low in cost, and can complete loading measurement of one-dimensional to six-dimensional force and torque under the condition of no disassembly and assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to multi -component force sensor calibration technical field especially relates to a kind of multi -component force sensor calibration device. BACKGROUND

[0002] In the test of tire testing and balancing equipment, a variety of multi-component force sensors are needed to measure the changes of two or more values in radial force, tangential force, lateral force and torque in each direction of the tire, which not only has high requirements for the dynamic performance of the sensor, but also needs to evaluate the coupling error of the sensor in different directions.

[0003] As the application number: CN201920022231.0 discloses a kind of multi-component force sensor convenient to connect, including disc, the base is connected with the support column at the bottom of the disc, the support column is internally provided with piece groove, the disc is internally provided with annular groove, the annular groove middle part is installed with disc core, the disc both sides edge is uniformly provided with air hole, the wire end is installed on the outside one side of the disc by screw thread, the wire end one side is sleeved with sleeve, the sleeve is installed with wire inside, the annular groove is internally pasted with buffer sleeve by clamping plate, the buffer sleeve is internally connected with support strip by elastic rod, the wire end is installed with wire board inside, the wire board is internally provided with wire hole, the wire board is pasted with silica gel gasket outside, the silica gel gasket and wire end are fixedly connected by compression spring, the compression spring and wire end are fixedly connected by spring fixed seat.

[0004] In order to detect the performance of multi-component force sensor, a set of device is needed to calibrate multi-component force sensor. Most of the current sensor calibration devices cannot complete multi-direction loading and measurement at the same time, and if different directions are repeatedly disassembled for calibration, positioning accuracy will be poor, coupling error cannot be evaluated, and operation process will be complex. In addition, the currently disclosed multi-component force sensor calibration device generally has problems such as change of loading point, fixed test force direction and complex test. Some calibration devices use weights for calibration, which also limits the loading force value, does not have universality between different sensors, and is difficult to meet the needs of different products. UTILITY MODEL CONTENT

[0005] In order to solve the above problems, the utility model provides a kind of multi-component force sensor calibration device to solve the problem.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0007] The application discloses a multi-component force sensor calibration device which comprises a mechanism assembly, a loading mechanism, a multi-component force sensor, a sensor fixing seat assembly and a driving assembly.

[0008] Preferably, the mechanism assembly comprises frame mounting plates and reinforcing rib plates, two groups of the frame mounting plates are arranged, a plurality of the reinforcing rib plates are arranged between the two groups of the frame mounting plates, the loading mechanism is fixedly connected with the reinforcing rib plates, and the sensor fixing seat assembly is slidably arranged on the frame mounting plates through the driving assembly.

[0009] Preferably, the loading mechanism comprises a loading driving mechanism, a force gauge and a loading shaft, the loading driving mechanism is fixedly connected with the mechanism assembly, the driving end of the loading driving mechanism is fixedly connected with the loading shaft through the force gauge, and the loading shaft is used in cooperation with the multi-component force sensor.

[0010] Preferably, the loading driving mechanism comprises a guide sleeve, a loading lead screw, a locking nut, a bearing, a threaded telescopic column and a connecting rod, the guide sleeve is fixedly connected with the mechanism assembly, the loading lead screw is rotatably arranged in the guide sleeve through the bearing, one end of the loading lead screw is connected with the guide sleeve through the locking nut, the other end of the loading lead screw is threadedly connected with one end of the threaded telescopic column which is slidably arranged in the guide sleeve, the other end of the threaded telescopic column is fixedly connected with the connecting rod, and the connecting rod is connected with the loading shaft through the force gauge.

[0011] Preferably, the driving assembly comprises a mounting plate, a sliding rail, a lead screw mounting seat, a lead screw, a hand wheel and a limiting assembly, the mounting plate is fixedly mounted on the mechanism assembly, the sliding rail is fixedly mounted on the mounting plate, the sensor fixing seat assembly is slidably connected with the sliding rail, the lead screw mounting seat is fixedly mounted on the mounting plate, one end of the lead screw is fixedly connected with the hand wheel through the lead screw mounting seat, the lead screw is rotatably connected with the lead screw mounting seat, and the other end of the lead screw is connected with the sensor fixing seat assembly through the limiting assembly.

[0012] Preferably, the limiting assembly comprises a limiting block and a limiting screw, the limiting block is threadedly connected with the lead screw, the limiting block is fixedly mounted on the sensor fixing seat assembly, the limiting screw is arranged on the upper side of the limiting block, and the limiting screw abuts against the lead screw through the limiting block.

[0013] The utility model discloses a structure is reasonable, convenient to use, can install different structure's multi -component force sensor through the setting sensor fixed seat assembly, and through the displacement adjustment of drive component, to adapt to the loading of different size sensor, through setting x, y, z three directions's three groups loading mechanism, can reduce the influence of mechanical structure to the coupling error between multi -component force sensor each direction force, and can realize the individual or simultaneous loading of each direction force under the condition of not disassembling, to complete the unidirectional and combined force calibration of multi -component force sensor, and then can obtain the coupling data of multi -component force sensor, and then reduce the coupling error through the method of decoupling, to obtain the calibration parameter of high accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which form a part of this description, are included to provide a further understanding of the application. The embodiments of the application and its

[0015] Figure 1 is the structure schematic diagram of the utility model;

[0016] Figure 2 is the structure schematic diagram of the utility model mechanism assembly;

[0017] Figure 3 is the structure schematic diagram of the utility model loading mechanism;

[0018] Figure 4 is the structure schematic diagram of the utility model loading drive mechanism;

[0019] Figure 5 is the structure schematic diagram of the utility model drive component;

[0020] Figure 6 is the structure schematic diagram of the utility model limiting component.

[0021] BRIEF DESCRIPTION OF DRAWINGS

[0022] 1, mechanism assembly;2, loading mechanism;3, multi -component force sensor;4, sensor fixed seat assembly;5, drive component;11, frame mounting plate;12, reinforcing rib plate;21, loading drive mechanism;22, dynamometer;23, loading shaft;211, guide sleeve;212, loading lead screw;213, locking nut;214, bearing;215, threaded telescopic column;216, connecting rod;51, mounting plate;52, slide rail;53, lead screw mounting seat;54, lead screw;55, hand wheel;56, limiting component;561, limiting block;562, limiting screw. DETAILED DESCRIPTION

[0023] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0024] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0025] In the description of the utility model, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0026] Embodiment one, combined Figure 1 It is explained that:

[0027] A multi-component force sensor calibration device, comprising: mechanism assembly 1, loading mechanism 2, multi-component force sensor 3, sensor fixing seat assembly 4 and driving assembly 5, the loading mechanism 2 is provided with at least three groups, three groups of loading mechanism 2 are located in X, Y, Z direction of multi-component force sensor 3, loading mechanism 2 is fixedly connected with mechanism assembly 1, three groups of loading mechanism 2 are orthogonal in space, multi-component force sensor 3 is fixedly installed on sensor fixing seat assembly 4, sensor fixing seat assembly 4 is slidably connected with mechanism assembly 1 through driving assembly 5.

[0028] So set, three groups of loading mechanism 2 are respectively located in X, Y, Z axis direction of multi-component force sensor 3, and are orthogonal to each other, and then the force from different directions can be accurately simulated and measured in the calibration process, so that more accurate sensor readings are obtained.

[0029] Embodiment two, on the basis of embodiment one, combinedFigure 2 Explanation:

[0030] The mechanism assembly 1 includes: a frame mounting plate 11 and a reinforcing rib plate 12. The frame mounting plate 11 is provided in two sets, and multiple sets of reinforcing rib plates 12 are provided between the two sets of frame mounting plates 11. The loading mechanism 2 is fixedly connected to the reinforcing rib plate 12, and the sensor mounting base assembly 4 is slidably mounted on the frame mounting plate 11 through the drive component 5.

[0031] The frame mounting plate 11 is a steel plate welded into a solid frame, and stiffening plates are welded on the supporting surface, which has high rigidity. It provides an installation position for the loading mechanism 2 and the sensor fixing seat assembly 4, and ensures that the loading directions are orthogonal to each other in space.

[0032] Example 3, based on Example 2, combined with Figure 3 Explanation:

[0033] The loading mechanism 2 includes a loading drive mechanism 21, a force gauge 22, and a loading shaft 23. The loading drive mechanism 21 is fixedly connected to the mechanism assembly 1. The drive end of the loading drive mechanism 21 is fixedly connected to the loading shaft 23 through the force gauge 22. The loading shaft 23 is used in conjunction with the multi-component force sensor 3.

[0034] With this configuration, the loading mechanism 2 is located on the X, Y, and Z-axis loading supports of the frame assembly, with positioning rings ensuring positional accuracy, and the mechanisms operate independently. The loading mechanism 2 converts circular motion into linear motion via a lead screw to apply load, and a force gauge 22 and a loading shaft 23 can be mounted at its front end for force measurement. Furthermore, the directional movement of the sensor mounting assembly 4 further enables the application and measurement of torque.

[0035] Example 4, based on Example 3, combined with Figure 4 Explanation:

[0036] The loading drive mechanism 21 includes: a guide sleeve 211, a loading screw 212, a locking nut 213, a bearing 214, a threaded telescopic column 215, and a connecting rod 216. The guide sleeve 211 is fixedly connected to the mechanism assembly 1. The loading screw 212 is rotatably disposed in the guide sleeve 211 through the bearing 214. One end of the loading screw 212 is connected to the guide sleeve 211 through the locking nut 213. The other end of the loading screw 212 is threadedly connected to one end of the threaded telescopic column 215, which is slidably disposed in the guide sleeve 211. The other end of the threaded telescopic column 215 is fixedly connected to the connecting rod 216. The connecting rod 216 is connected to the loading shaft 23 through a force gauge 22.

[0037] With this configuration, when the loading screw 212 rotates, it can drive the threaded telescopic column 215 to move along the axis of the guide sleeve 211, thereby controlling the extension length of the connecting rod 216.

[0038] In the fifth embodiment, the first to fourth embodiments are combined. Figure 5 The application will be described in detail below.

[0039] The driving assembly 5 comprises a mounting plate 51, a sliding rail 52, a screw rod mounting base 53, a screw rod 54, a hand wheel 55 and a limiting assembly 56. The mounting plate 51 is fixedly installed on the mechanism assembly 1. The sliding rail 52 is fixedly installed on the mounting plate 51. The sensor mounting base assembly 4 is slidably connected with the sliding rail 52. The screw rod mounting base 53 is fixedly installed on the mounting plate 51. One end of the screw rod 54 is fixedly connected with the hand wheel 55 through the screw rod mounting base 53. The screw rod 54 is rotatably connected with the screw rod mounting base 53. The other end of the screw rod 54 is connected with the sensor mounting base assembly 4 through the limiting assembly 56.

[0040] In this way, the hand wheel 55 drives the screw rod 54 to rotate. The screw rod 54 can drive the sensor mounting base assembly 4 to slide along the sliding rail 52 through the limiting assembly 56.

[0041] In the sixth embodiment, the first to fifth embodiments are combined. Figure 6 The application will be described in detail below.

[0042] The limiting assembly 56 comprises a limiting block 561 and a limiting screw 562. The limiting block 561 is threadedly connected with the screw rod 54. The limiting block 561 is fixedly installed on the sensor mounting base assembly 4. The limiting screw 562 is arranged on the upper side of the limiting block 561. The limiting screw 562 abuts against the screw rod 54 through the limiting block 561.

[0043] In this way, the limiting block 561 and the limiting screw 562 can fix the sensor mounting base assembly.

[0044] The above-mentioned moving parts should be properly lubricated.

[0045] The utility model discloses a working principle: in use, the multi-component force sensor 3 is fixed on the sensor fixed seat assembly 4 through the matching connecting plate and screw, according to the loading point or loading distance requirement of multi-component force sensor 3, the specific loading shaft 23 is configured, force gauge 22 and loading shaft 23 are installed on loading mechanism 2 in proper order, can select appropriate force gauge 22 according to the measured multi-component force sensor 3 stroke, to guarantee that the calibration result has enough accuracy, can decide the quantity of force gauge 22 according to the calibration direction demand, after the installation of force gauge 22, retract loading mechanism 2 to approach limit position, then adjust sensor fixed seat assembly 4 to proper loading position, tighten the limit screw 562, realize the fixation of sensor fixed seat assembly 4 through the tension between fixed screw and limit block 561, load force through the rotation loading lead screw 212, and the rotation motion of loading lead screw 212 is converted into the linear motion of screw thread telescopic column 215, and the force value of multi-component force sensor 3 is calibrated through the display value of force gauge 22, and the force arm is controlled through the position of sensor fixed seat assembly 4, thereby loading moment, and the moment value is calibrated through the display value of force gauge 22 and force arm, and the coupling data of multi-component force sensor 3 can be obtained according to the calibration result of the single direction and combined force of multi-component force sensor 3, and the coupling error is reduced through the decoupling method, thereby obtaining the calibration parameter of high accuracy.

[0046] For those skilled in the art, the utility model is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model; therefore, no matter from which point, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any figure reference in the claims should not be regarded as limiting the involved claims.

[0047] The above is only the preferred embodiment of the utility model, and does not limit the utility model, and any slight modification, equivalent replacement and improvement according to the technical essence of the utility model to the above embodiment should be included in the protection scope of the technical scheme of the utility model.

Claims

1. A multi-component force sensor calibration device, characterized by, The application relates to a multi-component force sensor, which comprises a mechanism assembly (1), a loading mechanism (2), a multi-component force sensor (3), a sensor fixing seat assembly (4) and a driving assembly (5), wherein the loading mechanism (2) is provided with at least three groups, the three groups of loading mechanisms (2) are located in X, Y and Z directions of the multi-component force sensor (3), the loading mechanism (2) is fixedly connected with the mechanism assembly (1), the three groups of loading mechanisms (2) are orthogonal to each other in space, the multi-component force sensor (3) is fixedly installed on the sensor fixing seat assembly (4), and the sensor fixing seat assembly (4) is slidably connected with the mechanism assembly (1) through the driving assembly (5). The mechanism assembly (1) comprises frame mounting plates (11) and reinforcing rib plates (12), two groups of the frame mounting plates (11) are provided, a plurality of the reinforcing rib plates (12) are arranged between the two groups of the frame mounting plates (11), the loading mechanism (2) is fixedly connected with the reinforcing rib plate (12), and the sensor fixing seat assembly (4) is slidably arranged on the frame mounting plate (11) through the driving assembly (5).

2. The multi-component force sensor calibration device of claim 1, wherein, The loading mechanism (2) comprises a loading driving mechanism (21), a force gauge (22) and a loading shaft (23), the loading driving mechanism (21) is fixedly connected with the mechanism assembly (1), the driving end of the loading driving mechanism (21) is fixedly connected with the loading shaft (23) through the force gauge (22), and the loading shaft (23) is used in cooperation with the multi-component force sensor (3).

3. The multi-component force sensor calibration device of claim 1, wherein, The loading driving mechanism (21) comprises a guide sleeve (211), a loading lead screw (212), a locking nut (213), a bearing (214), a threaded telescopic column (215) and a connecting rod (216), the guide sleeve (211) is fixedly connected with the mechanism assembly (1), the loading lead screw (212) is rotatably arranged in the guide sleeve (211) through the bearing (214), one end of the loading lead screw (212) is connected with the guide sleeve (211) through the locking nut (213), the other end of the loading lead screw (212) is fixedly connected with one end of the threaded telescopic column (215) which is slidably arranged in the guide sleeve (211) through screw threads, the other end of the threaded telescopic column (215) is fixedly connected with the connecting rod (216), and the connecting rod (216) is connected with the loading shaft (23) through the force gauge (22).

4. A multi-component force sensor calibration device according to claim 3, wherein, The driving assembly (5) comprises a mounting plate (51), a sliding rail (52), a lead screw mounting seat (53), a lead screw (54), a hand wheel (55) and a limiting assembly (56), the mounting plate (51) is fixedly installed on the mechanism assembly (1), the sliding rail (52) is fixedly installed on the mounting plate (51), the sensor fixing seat assembly (4) is slidably connected with the sliding rail (52), the lead screw mounting seat (53) is fixedly installed on the mounting plate (51), one end of the lead screw (54) penetrates through the lead screw mounting seat (53) and is fixedly connected with the hand wheel (55), the lead screw (54) is rotatably connected with the lead screw mounting seat (53), and the other end of the lead screw (54) is connected with the sensor fixing seat assembly (4) through the limiting assembly (56).

5. The multi-component force sensor calibration device of claim 1, wherein, ​ 6. A multi-component force sensor calibration device according to claim 5, wherein, The limiting assembly (56) comprises a limiting block (561) and a limiting screw (562), the limiting block (561) is threadedly connected with the lead screw (54), the limiting block (561) is fixedly installed on the sensor fixing seat assembly (4), the limiting screw (562) is arranged on the upper side of the limiting block (561), and the limiting screw (562) abuts against the lead screw (54) through the limiting block (561).

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