Adjustable force sensor calibration device

Abstract

The utility model provides an adjustable force sensor calibration device, which relates to the field of force sensor calibration equipment and comprises a base, a transverse moving assembly is mounted at the top of the base, a front-back moving assembly is mounted above the transverse moving assembly, and a fixing seat is mounted above the front-back moving assembly. The transverse moving assembly is used for driving the front-back moving assembly to transversely move, and the front-back moving assembly is used for driving the fixing base to move front and back. According to the utility model, the transverse moving assembly, the front-back moving assembly, the fixing seat, the hydraulic machine, the main controller and the standard measuring instrument are arranged, so that the effect of calibrating the multi-dimensional force sensor can be achieved, and the sensor can be calibrated through the hydraulic machine, the main controller and the standard measuring instrument; the transverse moving assembly and the front-back moving assembly can adjust the position of the sensor in the calibration process, so that the sensor can calibrate different force bearing points of the sensor, and the calibration efficiency of the multi-dimensional force sensor is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of force sensor calibration equipment, specifically an adjustable force sensor calibration device. Background Technology

[0002] Multidimensional force sensors are a type of force sensor that can simultaneously measure force and torque components in two or more directions. They are widely used in fields such as robotics, automobile manufacturing, and automated assembly lines. Multidimensional force sensors require calibration after long-term use.

[0003] Calibration is necessary to eliminate inherent errors in the sensor and improve measurement accuracy. After long-term use, due to various factors such as temperature changes and mechanical wear, the sensor's measurement results may deviate. Therefore, regular calibration is essential. When using a multi-dimensional force sensor, its surface is subjected to loads in different directions. However, multi-dimensional force sensors can usually only be calibrated in one direction, making it inconvenient to adjust the sensor's calibration position. After each calibration, the sensor's position needs to be re-fixed, which not only reduces calibration efficiency but also affects the calibration effect.

[0004] In summary, this invention provides an adjustable force sensor calibration device to solve the above-mentioned problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] An adjustable force sensor calibration device includes a base, a lateral movement assembly mounted on top of the base, a forward / backward movement assembly mounted above the lateral movement assembly, and a fixed base mounted above the forward / backward movement assembly for fixing the sensor. The lateral movement assembly drives the forward / backward movement assembly to move laterally, and the forward / backward movement assembly drives the fixed base to move forward / backward. The lateral movement assembly includes a fixed plate, a first threaded rod, a first motor, and a first threaded sleeve. The first threaded rod is movably connected to the fixed plate via a bearing seat. The first motor is fixed to one side of the top of the fixed plate, and the output shaft of the first motor is connected to the first threaded sleeve. The linkage is a rod-driven connection. The first threaded sleeve is fitted onto the surface of the first threaded rod and is threadedly connected to the first threaded rod. The forward and backward moving assembly includes a movable plate, a support plate, a second threaded rod, a second motor, and a second threaded sleeve. The fixed seat is fixed to the top of the support plate. The first threaded sleeve is fixedly connected to the movable plate. The second threaded rod is movably connected to the movable plate through a bearing seat. One end of the second threaded sleeve is fixedly connected to the support plate. The other end of the second threaded sleeve is fitted onto the surface of the second threaded rod and is threadedly connected to the second threaded rod. The second motor is fixed to one side of the top of the movable plate. The output shaft of the second motor is drivenly connected to the second threaded rod.

[0007] Furthermore, in this utility model, a bracket is fixedly connected to the top of the base, and a hydraulic press is installed on the top of the bracket, with the output end of the hydraulic press penetrating into the inner cavity of the bracket.

[0008] Furthermore, in this invention, a standard measuring instrument is fixedly connected to the surface of the base, and a main controller is fixedly connected to the surface of the bracket.

[0009] Furthermore, in this utility model, the lateral movement component also includes a first slide rail, a first slide block, and a first ranging sensor. The first ranging sensor is fixedly connected to both sides of the fixed plate, and the first slide rail is fixedly connected to both ends of the top of the fixed plate. The first slide block is located on the surface of the first slide rail and is slidably connected to the surface of the first slide rail. The top of the first slide block is fixedly connected to the movable plate.

[0010] Furthermore, in this utility model, the forward and backward moving assembly also includes a second slide rail, a second slide block, and a second ranging sensor. The second slide rail is fixedly connected to the movable plate, the second slide block is located on the surface of the second slide rail and is slidably connected to the second slide rail, the top of the second slide rail is fixedly connected to the support plate, and the front and rear ends of the top of the movable plate are both fixedly connected to the second ranging sensor.

[0011] Furthermore, in this utility model, the output terminals of the standard measuring instrument, the first ranging sensor, and the second ranging sensor are all connected to the input terminal of the main controller, and the output terminal of the main controller is connected to the input terminals of the standard measuring instrument, the hydraulic press, the first motor, and the second motor, respectively.

[0012] Beneficial effects: This utility model has the following beneficial effects:

[0013] This invention, by setting up a lateral movement component, a front-back movement component, a fixed base, a hydraulic press, a main controller, and a standard measuring instrument, achieves the effect of calibrating a multi-dimensional force sensor. The fixed base is used to fix the sensor, and the hydraulic press, main controller, and standard measuring instrument are used to calibrate the sensor. The lateral movement component and the front-back movement component can adjust the position of the sensor during the calibration process, enabling it to calibrate different force points of the sensor, thereby effectively improving the calibration efficiency of the multi-dimensional force sensor. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure between the base and the horizontal moving component and the front-back moving component of this utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the base and the lateral moving component of this utility model;

[0017] Figure 4 This is a schematic diagram of the separated state structure of the front and rear moving components of this utility model;

[0018] Figure 5 This is a schematic diagram of the system flow structure of this utility model.

[0019] In the picture:

[0020] 1. Base; 2. Lateral movement assembly; 201. Fixing plate; 202. First threaded rod; 203. First motor; 204. First threaded sleeve; 205. First slide rail; 206. First slide block; 207. First distance sensor; 3. Forward and backward movement assembly; 301. Movable plate; 302. Support plate; 303. Second threaded rod; 304. Second motor; 305. Second threaded sleeve; 306. Second slide rail; 307. Second slide block; 308. Second distance sensor; 4. Fixing base; 5. Hydraulic press; 6. Main controller; 7. Standard measuring instrument; 8. Bracket. Detailed Implementation

[0021] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0022] Example 1

[0023] like Figure 1-5 As shown, this is the first embodiment of the present invention. This embodiment provides an adjustable force sensor calibration device, including a base 1. A lateral moving component 2 is mounted on the top of the base 1. A front-to-back moving component 3 is mounted above the lateral moving component 2. A fixed seat 4 is mounted above the front-to-back moving component 3. The fixed seat 4 is used to fix the sensor. The lateral moving component 2 is used to drive the front-to-back moving component 3 to move laterally, and the front-to-back moving component 3 is used to drive the fixed seat 4 to move back and forth. The lateral moving component 2 includes a fixed plate 201, a first threaded rod 202, a first motor 203, and a first threaded sleeve 204. The first threaded rod 202 is movably connected to the fixed plate 201 through a bearing seat. The first motor 203 is fixed to one side of the top of the fixed plate 201. The output shaft of the first motor 203 is connected to the first threaded rod 202. The moving assembly 3 includes a movable plate 301, a support plate 302, a second threaded rod 303, a second motor 304, and a second threaded sleeve 305. A fixed seat 4 is fixed to the top of the support plate 302. The first threaded sleeve 204 is fixedly connected to the movable plate 301. The second threaded rod 303 is movably connected to the movable plate 301 through a bearing seat. One end of the second threaded sleeve 305 is fixedly connected to the support plate 302. The other end of the second threaded sleeve 305 is fitted onto the surface of the second threaded rod 303 and is threadedly connected to the second threaded rod 303. The second motor 304 is fixed to one side of the top of the movable plate 301. The output shaft of the second motor 304 is connected to the second threaded rod 303 in a transmission manner.

[0024] like Figure 1-5As shown, the mounting base 4 can use a vacuum suction cup to fix the sensor to the surface of the mounting base 4. A calibration pressure is applied to the sensor by a hydraulic press 5. The first threaded rod 202, the first motor 203, and the first threaded sleeve 204 work together to drive the front-to-back moving assembly 3 to move laterally, thereby moving the sensor laterally. The output shaft of the first motor 203 rotates, causing the first threaded rod 202 to rotate. When the first threaded rod 202 rotates, it drives the first threaded sleeve 204 to move along the surface of the first threaded rod 202. Simultaneously, the movement of the first threaded sleeve 204 drives the front-to-back moving assembly 3 to move, thereby moving the sensor. The device moves, and the output shaft of the first motor 203 rotates forward, driving the front-to-back moving component 3 to move to the left. When the output shaft of the first motor 203 rotates in reverse, it drives the front-to-back moving component 3 to move to the right. The output shaft of the second motor 304 rotates, driving the second threaded rod 303 to rotate. When the second threaded rod 303 rotates, it drives the second threaded sleeve 305 to move along the surface of the second threaded rod 303. When the second threaded sleeve 305 moves, it drives the support plate 302 to move back and forth, thereby driving the sensor to move back and forth. Through the cooperation of the lateral moving component 2 and the front-to-back moving component 3, the calibration position of the sensor can be adjusted, thereby improving the calibration efficiency.

[0025] Example 2

[0026] Reference Figure 1-5 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0027] In this embodiment, a bracket 8 is also fixedly connected to the top of the base 1, and a hydraulic press 5 is installed on the top of the bracket 8. The output end of the hydraulic press 5 extends through the inner cavity of the bracket 8.

[0028] A standard measuring instrument 7 is fixedly connected to the surface of the base 1, and a main controller 6 is fixedly connected to the surface of the bracket 8.

[0029] The lateral movement assembly 2 also includes a first slide rail 205, a first slide block 206 and a first ranging sensor 207. The first ranging sensor 207 is fixedly connected to both sides of the fixed plate 201. The first slide rail 205 is fixedly connected to both ends of the top of the fixed plate 201. The first slide block 206 is located on the surface of the first slide rail 205 and is slidably connected to the surface of the first slide rail 205. The top of the first slide block 206 is fixedly connected to the movable plate 301.

[0030] The forward and backward moving assembly 3 also includes a second slide rail 306, a second slide block 307, and a second ranging sensor 308. The second slide rail 306 is fixedly connected to the movable plate 301. The second slide block 307 is located on the surface of the second slide rail 306 and is slidably connected to the second slide rail 306. The top of the second slide rail 306 is fixedly connected to the support plate 302. The second ranging sensor 308 is fixedly connected to both the front end and the rear end of the top of the movable plate 301.

[0031] The output terminals of the standard measuring instrument 7, the first distance sensor 207, and the second distance sensor 308 are all connected to the input terminal of the main controller 6. The output terminal of the main controller 6 is connected to the input terminals of the standard measuring instrument 7, the hydraulic press 5, the first motor 203, and the second motor 304, respectively.

[0032] like Figure 1-5 As shown, a pressure plate is installed at the output end of the hydraulic press 5. The hydraulic press 5 drives the pressure plate to apply calibration pressure to the sensor. The standard measuring instrument 7 is used to calibrate and verify the sensor. The main controller 6 sets the calibration value of the sensor and the pressure value applied by the hydraulic press 5. After the sensor is fixed by the fixing seat 4, the output end of the sensor is connected to the input end of the standard measuring instrument 7. An aviation connector can be used for connection. When the hydraulic press 5 applies pressure, the standard measuring instrument 7 calibrates and verifies the sensor. The first ranging sensor 207 and the second ranging sensor 308 can monitor the movement trajectory of the lateral moving component 2 and the front and rear moving component 3, thereby accurately adjusting the position of the sensor. The first slide rail 205 and the first slide block 206 cooperate to limit the movement trajectory of the movable plate 301 to prevent deviation when the movable plate 301 moves. The second slide rail 306 and the second slide block 307 cooperate to limit the movement trajectory of the support plate 302 to prevent deviation when the support plate 302 moves.

[0033] In use, the sensor can be fixed to the mounting base 4 using a vacuum suction cup. After the sensor is fixed to the surface of the mounting base 4, the output end of the sensor is connected to the input end of the standard measuring instrument 7. The calibration value of the sensor and the pressure value applied by the hydraulic press 5 are set by the main controller 6. A pressure plate is installed at the output end of the hydraulic press 5. The hydraulic press 5 drives the pressure plate to apply calibration pressure to the sensor. When the hydraulic press 5 applies pressure, the sensor is calibrated and verified by the standard measuring instrument 7. After a single calibration is completed, the position of the mounting base 4 is adjusted by the lateral movement component 2 and the front-back movement component 3, thereby adjusting the position of the sensor so that it can be calibrated for different force positions. The first threaded rod 202, the first motor 203 and the first threaded sleeve 204 work together to drive the front-back movement component 3 to move laterally, thereby driving the sensor to move laterally. The output shaft of the first motor 203 rotates the first threaded rod 202. When the first threaded rod 202 rotates... The first threaded sleeve 204 moves along the surface of the first threaded rod 202. Simultaneously, the movement of the first threaded sleeve 204 moves the front-to-back moving assembly 3, thereby moving the sensor. The output shaft of the first motor 203 rotates clockwise, causing the front-to-back moving assembly 3 to move to the left; when the output shaft rotates counter-clockwise, it moves the front-to-back moving assembly 3 to the right. Through the cooperation of the support plate 302, the second threaded rod 303, the second motor 304, and the second threaded sleeve 305, the sensor can move back and forth. The output shaft of the second motor 304 rotates, causing the second threaded rod 303 to rotate. When the second threaded rod 303 rotates, it moves the second threaded sleeve 305 along its surface. The movement of the second threaded sleeve 305 causes the support plate 302 to move back and forth, thus moving the sensor back and forth. Through the cooperation of the lateral moving assembly 2 and the front-to-back moving assembly 3, the calibration position of the sensor can be adjusted, thereby improving calibration efficiency.

[0034] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0035] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. An adjustable force sensor calibration device, comprising a base (1), characterized in that: A lateral moving component (2) is installed on the top of the base (1). A front-back moving component (3) is installed above the lateral moving component (2). A fixed seat (4) is installed above the front-back moving component (3). The fixed seat (4) is used to fix the sensor. The lateral moving component (2) is used to drive the front-back moving component (3) to move laterally. The front-back moving component (3) is used to drive the fixed seat (4) to move back and forth. The lateral moving component (2) includes a fixed plate (201), a first threaded rod (202), a first motor (203), and a first threaded sleeve (204). The first threaded rod (202) is movably connected to the fixed plate (201) through a bearing seat. The first motor (203) is fixed to one side of the top of the fixed plate (201). The output shaft of the first motor (203) is connected to the first threaded rod (202) for transmission. The first threaded sleeve (204) is sleeved on the first threaded rod. The front and rear moving assembly (3) includes a movable plate (301), a support plate (302), a second threaded rod (303), a second motor (304), and a second threaded sleeve (305). The fixed seat (4) is fixed to the top of the support plate (302). The first threaded sleeve (204) is fixedly connected to the movable plate (301). The second threaded rod (303) is movably connected to the movable plate (301) through a bearing seat. One end of the second threaded sleeve (305) is fixedly connected to the support plate (302). The other end of the second threaded sleeve (305) is sleeved on the surface of the second threaded rod (303) and threadedly connected to the second threaded rod (303). The second motor (304) is fixed to one side of the top of the movable plate (301). The output shaft of the second motor (304) is drivenly connected to the second threaded rod (303).

2. The adjustable force sensor calibration device as described in claim 1, characterized in that: The top of the base (1) is also fixedly connected to a bracket (8), and a hydraulic press (5) is installed on the top of the bracket (8). The output end of the hydraulic press (5) extends through the inner cavity of the bracket (8).

3. The adjustable force sensor calibration device as described in claim 2, characterized in that: A standard measuring instrument (7) is fixedly connected to the surface of the base (1), and a main controller (6) is fixedly connected to the surface of the bracket (8).

4. The adjustable force sensor calibration device as described in claim 3, characterized in that: The lateral movement component (2) further includes a first slide rail (205), a first slide block (206), and a first distance sensor (207). The first distance sensor (207) is fixedly connected to both sides of the fixed plate (201). The first slide rail (205) is fixedly connected to both ends of the top of the fixed plate (201). The first slide block (206) is located on the surface of the first slide rail (205) and is slidably connected to the surface of the first slide rail (205). The top of the first slide block (206) is fixedly connected to the movable plate (301).

5. The adjustable force sensor calibration device as described in claim 4, characterized in that: The forward and backward moving assembly (3) further includes a second slide rail (306), a second slide block (307), and a second distance sensor (308). The second slide rail (306) is fixedly connected to the movable plate (301). The second slide block (307) is located on the surface of the second slide rail (306) and is slidably connected to the second slide rail (306). The top of the second slide rail (306) is fixedly connected to the support plate (302). The front end and rear end of the top of the movable plate (301) are both fixedly connected to the second distance sensor (308).

6. The adjustable force sensor calibration device as described in claim 5, characterized in that: The output terminals of the standard measuring instrument (7), the first distance sensor (207), and the second distance sensor (308) are all connected to the input terminal of the main controller (6). The output terminal of the main controller (6) is connected to the input terminals of the standard measuring instrument (7), the hydraulic press (5), the first motor (203), and the second motor (304), respectively.

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