Driving device for multi-dimensional force calibration

Abstract

The utility model relates to the technical field of multi-dimensional force calibration, in particular to a driving device for multi-dimensional force calibration. A driving device used for multi-dimensional force calibration comprises a rack, a moving beam is arranged on the rack, the moving beam is connected to the rack in a positionable reciprocating sliding mode in the vertical direction, a loading mechanism used for loading force to a calibrated sensor is arranged on the rack, and the loading mechanism is used for loading the force to the calibrated sensor. The loading mechanism is arranged on the moving beam in a penetrating mode in the vertical direction, and one end of the loading mechanism faces a calibrated sensor. The device has the following effects that the loading mechanism is driven to slide back and forth in the vertical direction in the process that the moving beam slides back and forth in the vertical direction, and the calibration requirements of multi-component force sensors of different sizes are met.

Description

Technical Field

[0001] The present application relates to the technical field of multi-dimensional force calibration, and in particular to a driving device for multi-dimensional force calibration. Background Art

[0002] A multi-dimensional force sensor refers to a force sensor that can measure force and torque components in more than two directions at the same time. It is widely used in aviation, aerospace, mechanical processing, automobile and other industries. High-precision multi-component force sensors need to be calibrated regularly to ensure the accuracy and reliability of the measurement results.

[0003] Generally, a multi-component force sensor is calibrated by a multi-dimensional force calibration device. Loading mechanisms are configured at different positions, and the calibration values ​​are compared with the standard values ​​to determine whether the measurement of the multi-component force sensor is accurate. However, different multi-component force sensors have different sizes. Calibration of different multi-component force sensors requires replacement of different detection devices, which is troublesome. Utility Model Content

[0004] In order to meet the calibration needs of multi-component force sensors of different sizes, the present application provides a driving device for multi-dimensional force calibration.

[0005] The present application provides a driving device for multi-dimensional force calibration, which adopts the following technical solution: it includes a frame, on which a movable beam is provided, and the movable beam is connected to the frame in a reciprocating sliding manner that can be positioned in a vertical direction, and a loading mechanism is provided on the frame for realizing force loading on a calibrated sensor, and the loading mechanism is penetrated through the movable beam in a vertical direction, and one end of the loading mechanism faces the calibrated sensor.

[0006] By adopting the above technical solution, during the process of the moving beam sliding back and forth in the vertical direction, the loading mechanism is driven to slide back and forth in the vertical direction, thereby meeting the calibration requirements of multi-component force sensors of different sizes.

[0007] Preferably, an upper beam is provided on the frame, and the upper beam is located above the movable beam in the vertical direction. A driving screw is provided on the upper beam, and the driving screw is connected to the upper beam in a positionable reciprocating sliding manner in the vertical direction, and one end of the driving screw away from the upper beam is fixedly connected to the movable beam.

[0008] By adopting the above technical solution, the driving screw drives the moving beam to slide during the process of positionable reciprocating sliding along the vertical direction, and then drives the loading mechanism to slide. The loading mechanism can be adjusted in height by reciprocating sliding along the vertical direction according to the sizes of different multi-component force sensors, thereby meeting the calibration needs of multi-component force sensors of different sizes.

[0009] Preferably, a nut is provided on the upper beam, the nut is coaxially sleeved on the driving screw, the nut is threadedly engaged with the driving screw, and the nut is circumferentially rotatable and axially fixedly connected to the upper beam.

[0010] By adopting the above technical solution, during the process of circumferential rotation and axial fixation of the nut, the driving screw is driven to slide in the vertical direction, thereby driving the moving beam and the loading mechanism to move in the vertical direction.

[0011] Preferably, a worm gear transmission assembly is provided on the upper beam, and the worm gear transmission assembly includes a transmission worm wheel and a transmission worm, the transmission worm wheel is coaxially sleeved on the nut, the transmission worm wheel and the nut are fixedly connected, the transmission worm is meshingly connected to the transmission worm wheel, and the axial direction of the transmission worm is perpendicular to the axial direction of the transmission worm wheel. A driving assembly is provided on the upper beam, the driving assembly is connected to one end of the transmission worm, and the driving assembly is used to drive the transmission worm to rotate.

[0012] By adopting the above technical solution, the driving assembly drives the transmission worm to rotate, and then drives the transmission worm wheel and the nut to rotate. The nut is axially fixed and the nut is threadedly connected to the driving screw, so that the driving screw slides in the vertical direction, thereby driving the moving beam and the loading mechanism to move in the vertical direction.

[0013] Preferably, a sleeve base is provided on the upper beam, the sleeve base and the driving screw are coaxially arranged, the sleeve base is partially sleeved on the transmission worm gear, and the sleeve base is partially sleeved on the driving screw.

[0014] By adopting the above technical solution, the sleeve base can not only protect the driving screw rod, the transmission worm gear and other components, but also provide a guiding effect for the sliding of the driving screw rod in the vertical direction.

[0015] Preferably, the drive assembly includes a drive motor, and a worm gear reducer is arranged on the upper beam, the worm gear reducer includes a reduction worm wheel and a reduction worm, the reduction worm wheel and the transmission worm are coaxially connected, the reduction worm wheel and the reduction worm are meshingly connected, the axial direction of the reduction worm wheel is perpendicular to the axial direction of the reduction worm, and the reduction worm is coaxially connected to the output shaft of the drive motor.

[0016] By adopting the above technical solution, the worm gear reducer can not only change the direction of force transmission, but also increase the torque, and has high working efficiency and low energy consumption.

[0017] Preferably, the frame includes a base, the base is located directly below the upper beam in the vertical direction, the movable beam slides back and forth between the base and the upper beam in the vertical direction, a column is vertically arranged on the base, one end of the column is fixedly connected to the base, and the other end of the column passes through the movable beam and is fixedly connected to the upper beam, and the column and the movable beam are slidingly connected.

[0018] By adopting the above technical solution, the column supports the upper beam and provides a guiding function for the reciprocating sliding of the moving beam in the vertical direction.

[0019] Preferably, a plurality of the columns are provided, and the plurality of the columns are arranged at equal angles in the circumferential direction of the central axis of the base.

[0020] By adopting the above technical solution, multiple columns make the upper beam structure more stable and also make the reciprocating sliding of the moving beam more stable.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. The loading mechanism can be adjusted in height by sliding back and forth in the vertical direction according to the size of different multi-component force sensors, meeting the calibration needs of multi-component force sensors of different sizes;

[0023] 2. Worm gear reducer can not only change the direction of force transmission, but also increase torque, and has high working efficiency and low energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of this application;

[0025] Figure 2 yes Figure 1 A partial enlarged schematic diagram of part A;

[0026] Figure 3 It is a cross-sectional schematic diagram of a partial structure of the present application.

[0027] Explanation of the reference numerals: 110, frame; 1101, base; 111, movable beam; 112, upper beam; 113, column; 120, loading mechanism; 130, driving screw; 131, nut; 132, worm gear transmission assembly; 1321, driving worm wheel; 1322, driving worm; 133, driving motor; 134, worm gear reducer; 1341, reduction worm wheel; 1342, reduction worm; 135, sleeve base; 136, transmission rod. DETAILED DESCRIPTION

[0028] The present application is further described in detail below in conjunction with the accompanying drawings.

[0029] The present application discloses a driving device for multi-dimensional force calibration, which is used to meet the calibration requirements of multi-component force sensors of different sizes.

[0030] refer to Figure 1 , Figure 2 A driving device for multi-dimensional force calibration includes a frame 110, a moving beam 111 is arranged on the frame 110, and the moving beam 111 is connected to the frame 110 in a positionable reciprocating sliding manner in the vertical direction. A loading mechanism 120 for realizing force loading on a calibrated sensor is arranged on the frame 110, and the loading mechanism 120 penetrates the moving beam 111 in the vertical direction, and one end of the loading mechanism 120 faces the calibrated sensor. During the reciprocating sliding of the moving beam 111 in the vertical direction, the loading mechanism 120 is driven to reciprocate in the vertical direction, thereby meeting the calibration needs of multi-component force sensors of different sizes.

[0031] The frame 110 includes a base 1101, on which an upper beam 112 is arranged. The upper beam 112, the movable beam 111 and the base 1101 are arranged in sequence from top to bottom in the vertical direction. The base 1101 is located directly below the upper beam 112 in the vertical direction. The movable beam 111 slides back and forth between the base 1101 and the upper beam 112 in the vertical direction. A column 113 is vertically arranged on the base 1101. In the present embodiment, a total of four columns 113 are arranged. The four columns 113 are distributed in a rectangular shape and are respectively located at four end corners of the base 1101 and the upper beam 112. One end of the column 113 is fixedly connected to the base 1101, and the other end of the column 113 passes through the movable beam 111 and is fixedly connected to the upper beam 112. The column 113 and the movable beam 111 are slidingly connected.

[0032] refer to Figure 1 , Figure 3The upper beam 112 is provided with a driving screw 130, a nut 131 and a worm gear transmission assembly 132. The worm gear transmission assembly 132 includes a transmission worm wheel 1321 and a transmission worm 1322. The transmission worm wheel 1321 is coaxially sleeved on the nut 131, and the nut 131 is coaxially sleeved on the driving screw 130. The nut 131 is threadedly meshed with the driving screw 130. The nut 131 is fixedly connected to the upper beam 112 to realize a circumferential rotation and axial fixed connection. One end of the driving screw 130 is fixedly connected to the moving beam 111, and the other end of the driving screw 130 passes through the nut 131 and is exposed to the frame 110. The transmission worm 1322 is meshed with the transmission worm wheel 1321. The transmission worm 1322 The axial direction is perpendicular to the axial direction of the transmission worm wheel 1321, and a driving component for driving the transmission worm 1322 to rotate is arranged on the upper beam 112. The driving component includes a driving motor 133. A worm gear reducer 134 is arranged on the upper beam 112. The worm gear reducer 134 includes a reduction worm wheel 1341 and a reduction worm 1342. The reduction worm wheel 1341 and the transmission worm 1322 are coaxially connected. The reduction worm wheel 1341 and the reduction worm 1342 are meshingly connected. The axial direction of the reduction worm wheel 1341 is perpendicular to the axial direction of the reduction worm 1342. The reduction worm 1342 is coaxially connected to the output shaft of the driving motor 133. The worm gear reducer 134 can not only change the direction of force transmission, but also increase torque, and has high working efficiency and low energy consumption.

[0033] The driving motor 133 drives the reduction worm 1342 to rotate, and the force is transmitted to the transmission worm wheel 1321 through the reduction worm wheel 1341 and the transmission worm 1322, thereby driving the transmission worm wheel 1321 and the nut 131 to rotate. The nut 131 is axially fixed and the nut 131 is threadedly connected to the driving screw 130, so that the driving screw 130 slides in the vertical direction, thereby driving the moving beam 111 and the loading mechanism 120 to move in the vertical direction. The loading mechanism 120 can slide back and forth in the vertical direction for height adjustment according to the sizes of different multi-component force sensors to meet the calibration needs of multi-component force sensors of different sizes.

[0034] In this embodiment, two drive motors 133, worm gear reducers 134, worm gear transmission components 132, nuts 131 and drive screws 130 are provided and symmetrically arranged on the upper beam 112, wherein one of the two drive motors 133 is the main motor and the other is auxiliary to replace the high-power motor, and the two reduction worm gears 1341 are coaxially connected through a transmission rod 136.

[0035] A sleeve base 135 is provided on the upper beam 112. The sleeve base 135 and the driving screw 130 are coaxially arranged. Part of the sleeve base 135 is sleeved on the transmission worm gear 1321, and part of the sleeve base 135 is sleeved on the driving screw 130. The sleeve base 135 can not only protect the driving screw 130 and the transmission worm gear 1321 and other components, but also provide guidance for the sliding of the driving screw 130 in the vertical direction.

[0036] The implementation principle of a driving device for multi-dimensional force calibration in an embodiment of the present application is: the driving motor 133 works, and the force is transmitted through the worm gear reducer 134 and the worm gear transmission assembly 132, thereby driving the transmission worm wheel 1321 and the nut 131 to rotate, so that the driving screw 130 slides in the vertical direction, and then drives the moving beam 111 and the loading mechanism 120 to move in the vertical direction. The loading mechanism 120 can slide back and forth in the vertical direction for height adjustment according to the sizes of different multi-component force sensors, so as to meet the calibration needs of multi-component force sensors of different sizes.

[0037] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A driving device for multi-dimensional force calibration, comprising a frame (110), characterized in that: The frame (110) is provided with a moving beam (111), the moving beam (111) is connected to the frame (110) in a positionable reciprocating sliding manner in a vertical direction, the frame (110) is provided with a loading mechanism (120) for implementing force loading on a sensor to be calibrated, the loading mechanism (120) is vertically penetrated through the moving beam (111), and one end of the loading mechanism (120) faces the sensor to be calibrated; An upper beam (112) is arranged on the frame (110), and the upper beam (112) is located above the movable beam (111) in the vertical direction. A driving screw rod (130) is arranged on the upper beam (112), and the driving screw rod (130) is connected to the upper beam (112) in a positionable reciprocating sliding manner in the vertical direction, and one end of the driving screw rod (130) away from the upper beam (112) is fixedly connected to the movable beam (111).

2. A driving device for multi-dimensional force calibration according to claim 1, characterized in that: A nut (131) is provided on the upper beam (112), the nut (131) is coaxially sleeved on the driving screw rod (130), the nut (131) is threadedly engaged with the driving screw rod (130), and the nut (131) is rotatably connected to the upper beam (112) and fixedly connected to the axial direction.

3. A driving device for multi-dimensional force calibration according to claim 2, characterized in that: A worm gear transmission assembly (132) is provided on the upper beam (112), the worm gear transmission assembly (132) comprising a transmission worm wheel (1321) and a transmission worm (1322), the transmission worm wheel (1321) being coaxially sleeved on the nut (131), the transmission worm wheel (1321) and the nut (131) being fixedly connected, the transmission worm (1322) being meshingly connected with the transmission worm wheel (1321), the axial direction of the transmission worm (1322) being perpendicular to the axial direction of the transmission worm wheel (1321), and a driving assembly is provided on the upper beam (112), the driving assembly being connected to one end of the transmission worm (1322), and the driving assembly being used to drive the transmission worm (1322) to rotate.

4. A driving device for multi-dimensional force calibration according to claim 3, characterized in that: A sleeve base (135) is provided on the upper beam (112); the sleeve base (135) and the driving screw rod (130) are coaxially arranged; a portion of the sleeve base (135) is sleeved on the transmission worm wheel (1321); and a portion of the sleeve base (135) is sleeved on the driving screw rod (130).

5. A driving device for multi-dimensional force calibration according to claim 4, characterized in that: The drive assembly comprises a drive motor (133); a worm gear reducer (134) is arranged on the upper beam (112); the worm gear reducer (134) comprises a reduction worm wheel (1341) and a reduction worm (1342); the reduction worm wheel (1341) and the transmission worm (1322) are coaxially connected; the reduction worm wheel (1341) and the reduction worm (1342) are meshingly connected; the axial direction of the reduction worm wheel (1341) is perpendicular to the axial direction of the reduction worm (1342); and the reduction worm (1342) is coaxially connected to the output shaft of the drive motor (133).

6. A driving device for multi-dimensional force calibration according to claim 5, characterized in that: The frame (110) comprises a base (1101), the base (1101) being located directly below the upper beam (112) in the vertical direction, the movable beam (111) slidingly reciprocatingly moving between the base (1101) and the upper beam (112) in the vertical direction, a column (113) being vertically arranged on the base (1101), one end of the column (113) being fixedly connected to the base (1101), the other end of the column (113) passing through the movable beam (111) and then fixedly connected to the upper beam (112), the column (113) and the movable beam (111) being slidingly connected.

7. A driving device for multi-dimensional force calibration according to claim 6, characterized in that: A plurality of the upright posts (113) are provided, and the plurality of upright posts (113) are arranged at equal angles in the circumferential direction of the central axis of the base (1101).

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