CN210625611U

CN210625611U - Displacement sensor calibrating device

Info

Publication number: CN210625611U
Application number: CN202020615341.0U
Authority: CN
Inventors: 张卫东
Original assignee: Wuhan Construction Technology Co Ltd
Current assignee: Wuhan Construction Technology Co Ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2020-05-26
Anticipated expiration: 2030-04-22

Abstract

The utility model provides a displacement sensor calibrating device belongs to sensor auxiliary device's technical field. The calibration device comprises a workbench component and a calibration device component, wherein the workbench component comprises a workbench, supporting legs, a first supporting plate, a second supporting plate, a top plate, a bearing and a scale, the calibration device component comprises a guide rail, a sliding block, a wheel, a reflecting plate, a connecting block, a triangular block, a motor, a screw rod and a controller, the controller controls the clockwise rotation, the anticlockwise rotation and the rotation speed of the motor, the sliding block makes constant speed variable motion on the guide rail, the moving distance of the sliding block is determined by recording the reading number of the triangular block on the scale to be compared with the data detected by the displacement sensor for calibration, the inaccurate detection caused by the position deviation and the artificial interference caused by manual operation is avoided, the structure is simple, therefore, the displacement sensor calibration device has the effects of simple structure, low requirement on environment, high calibration precision and high working efficiency.

Description

Displacement sensor calibrating device

Technical Field

The utility model relates to a sensor auxiliary device's technical field particularly, relates to a displacement sensor calibrating device.

Background

The linear laser displacement sensor is widely used in industry and engineering, the displacement sensor needs to be calibrated before use and after long time use to ensure normal work of the displacement sensor, the linear displacement sensor calibration method commonly used at home and abroad is to provide standard displacement through instruments and equipment such as a universal display, a length measuring machine, a laser interferometer and the like, the standard displacement is detected by the linear displacement sensor to obtain the input-output relation of the linear displacement sensor, and then the calibration of the sensor is realized, although the laser interferometer has higher measurement precision, the calibration mechanism is complex, the cost is high, the requirement on the measurement environment is high, and the linear displacement sensor calibration method is mainly used for the calibration of the linear displacement sensor with extremely high precision requirement. The calibration is carried out by adopting equipment such as a universal industrial display, a length measuring machine and the like, the manual operation is mainly used in the calibration process, and the calibration precision and efficiency are low.

Disclosure of Invention

In order to compensate above not enough, the utility model provides a displacement sensor calibrating device through increasing the calibrating device subassembly, has solved that present calibration tool structure is complicated to require high and the calibration process is with manual operation as the owner to the environment, and the calibration accuracy is low, problem that work efficiency hangs down.

The utility model discloses a realize like this:

a displacement sensor calibration device comprises a workbench assembly and a calibration device assembly.

The workstation subassembly includes workstation, supporting leg, first backup pad, second backup pad, roof, bearing and scale, the supporting leg install in the bottom of workstation, first backup pad install in one side of workstation, the second backup pad install in the opposite side of workstation, the roof install in first backup pad with the top of second backup pad, the bearing install in one side of first backup pad, first recess has been seted up at the top of roof, the scale install in one side of the top of roof, displacement sensor is installed to top one side of workstation.

The calibrating device subassembly includes guide rail, slider, wheel, reflector panel, connecting block, three hornblocks, motor, lead screw and controller, the second recess has been seted up to the bottom of slider, the guide rail install in the top opposite side of workstation, the slider install in the top of guide rail, the wheel install through the pivot in inside the second recess, the reflector panel install in one side of slider, the connecting block install in the top of slider, the through-hole has been seted up to one side of connecting block, one side of lead screw install in one side of motor, the opposite side of lead screw from the right side to a left side in proper order through-connection the through-hole with the bearing, three hornblocks install in the top of connecting block, the motor install in one side of roof bottom, the controller install in one side at roof top.

In an embodiment of the present invention, the guide groove is opened at the top of the guide rail, the wheel is installed in the slider and between the guide rails, and the wheel is installed in the guide groove.

In an embodiment of the present invention, the inner wall of the through hole is provided with a thread opposite to the outer wall of the screw rod, and the thread is engaged with the outer wall of the screw rod.

In an embodiment of the present invention, the outer wall of the connecting block and the inner wall of the first groove are in clearance fit with each other.

In an embodiment of the present invention, the triangular block is used for identifying the position of the slider.

In an embodiment of the present invention, the reflector is used for reflecting the light emitted by the displacement sensor.

In an embodiment of the present invention, the controller is configured to control the motor to rotate clockwise or counterclockwise, and control a rotation speed of the motor, and the controller is in communication with the motor.

The utility model has the advantages that: the utility model discloses a displacement sensor calibrating device that above-mentioned design obtained, the top at the guide rail is installed through the wheel to the slider, one side at the slider is installed to the reflector panel, the connecting block is installed at the top of slider and meshes with the lead screw, clockwise turning through controller control motor, counter-clockwise turning and rotatory speed, the slider is at the uniform velocity variable motion on the guide rail, the displacement distance that the slider was confirmed to the reading on the scale through the record triangle-shaped piece instruction is compared with the data that displacement sensor detected and is calibrated, the detection that the positional deviation that has avoided manual operation to lead to and artificial interference lead to is inaccurate, moreover, the steam generator is simple in structure, thereby make displacement sensor calibrating device have the simple structure to the environment require low and the high and high effect of work efficiency of calibration precision.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a calibration device according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional structural diagram of a calibration device according to an embodiment of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

fig. 4 is a schematic top view of a calibration device according to an embodiment of the present invention;

fig. 5 is a schematic view of a top view structure of a workbench according to an embodiment of the present invention.

In the figure: 1-a table assembly; 101-a workbench; 102-support legs; 103-a first support plate; 104-a second support plate; 105-a top plate; 106-bearing; 107-scale bar; 108 — a first groove; 2-calibrating the device assembly; 201-a guide rail; 202-a slide block; 203-wheels; 204-a reflector; 205-connecting block; 206-triangular blocks; 207-a motor; 208-a screw rod; 209-a controller; 2010-a second groove; 2011-through holes; 3-displacement sensor.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-5, the present invention provides a technical solution: a displacement sensor calibration device comprises a workbench assembly 1 and a calibration device assembly 2.

Referring to fig. 1-5, the workbench assembly 1 includes a workbench 101, support legs 102, a first support plate 103, a second support plate 104, a top plate 105, bearings 106 and a scale 107, the support legs 102 are installed at the bottom of the workbench 101, the number of the support legs 102 is four, the support legs are distributed at the bottom of the workbench 101, the first support plate 103 is installed at one side of the workbench 101, the second support plate 104 is installed at the other side of the workbench 101, the top plate 105 is installed at the top of the first support plate 103 and the second support plate 104, the bearings 106 are installed at one side of the first support plate 103, a first groove 108 is opened at the top of the top plate 105, the scale 107 is installed at one side of the top plate 105, the scale 107 is provided with scales for marking the moving distance of the slider 202, the displacement sensor 3 is installed at one side of the top of the workbench 101, the calibration device, The light reflecting plate 204 is arranged on the top of the sliding block 202, the connecting block 205, the triangular block 206, the motor 207, the screw rod 208 and the controller 209 are arranged on the bottom of the sliding block 202, the second groove 2010 is formed in the bottom of the sliding block 202, the guide rails 201 are arranged on the other side of the top of the workbench 101, the two guide rails 201 are distributed on the top of the workbench 101, the sliding block 202 is arranged on the top of the guide rails 201, the wheels 203 are arranged inside the guide grooves 2010 through rotating shafts, guide grooves are formed in the top of the guide rails 201, the guide rails 201 are used for keeping the sliding block 202 stable in operation and preventing the sliding block 202 from being displaced, the wheels 203 are arranged between the sliding block 202 and the guide rails 201, the wheels 203 are arranged inside the guide grooves, the light reflecting plate 204 is arranged on one side of the sliding block 202, the light reflecting plate 204 is used for reflecting light rays emitted by the, one side of a screw rod 208 is arranged at one side of a motor 207, the other side of the screw rod 208 sequentially penetrates through a connecting through hole 2011 and a bearing 106 from right to left, the inner wall of the through hole 2011 is provided with a thread opposite to the outer wall of the screw rod 208, the thread is meshed with the outer wall of the screw rod 208, a triangular block 206 is arranged at the top of a connecting block 205, the triangular block 206 is used for marking the position of a sliding block 202, the motor 207 is arranged at one side of the bottom of a top plate 105, the model of the motor 207 is limited to be BNS130A077B20-8E in the embodiment, a controller 209 is arranged at one side of the top plate 105, the model of the controller 209 is limited to be S7-1500 in the embodiment, the controller 209 is used for controlling the motor 207 to rotate clockwise or anticlockwise and controlling the rotating speed of the motor 207, the controller 209 is in communication connection with the motor, the efficiency is high.

Embodiment 1, record the position of the triangle block 206, the operation controller 209 controls the motor 207 to rotate clockwise at a constant speed, the motor 207 drives the lead screw 208 to rotate clockwise, the lead screw 208 is engaged with the connecting block 205 to drive the connecting block 205 and the triangle block 206 to move leftward, the connecting block 205 drives the slider 202 to move leftward on the top of the guide rail 201, the reflector 204 reflects the light emitted by the displacement sensor 3 to the displacement sensor 3, the displacement sensor 3 calculates the moving distance of the slider 202 according to the received light, read the position of the triangle block 206 after stopping, and compare the moving distance of the slider 202 with the moving distance detected by the displacement sensor 3 to calibrate the displacement sensor 3.

Embodiment 2, record the position of the triangle block 206, the operation controller 209 controls the motor 207 to rotate counterclockwise at a constant speed, the motor 207 drives the lead screw 208 to rotate counterclockwise, the lead screw 208 is engaged with the connecting block 205 to drive the connecting block 205 and the triangle block 206 to move rightward, the connecting block 205 drives the slider 202 to move rightward at the top of the guide rail 201, the reflector 204 reflects the light emitted by the displacement sensor 3 to the displacement sensor 3, the displacement sensor 3 calculates the moving distance of the slider 202 according to the received light, read the position after the triangle block 206 stops, calculate the moving distance of the slider 202 and compare the moving distance detected by the displacement sensor 3 to calibrate the displacement sensor 3.

Embodiment 3, record the position of the triangle block 206, the operation controller 209 controls the motor 207 to rotate clockwise with higher speed, the motor 207 drives the lead screw 208 to rotate clockwise, the lead screw 208 is engaged with the connecting block 205 to drive the connecting block 205 and the triangle block 206 to move leftward, the connecting block 205 drives the slider 202 to move leftward on the top of the guide rail 201, the reflector 204 reflects the light emitted by the displacement sensor 3 to the displacement sensor 3, the displacement sensor 3 calculates the moving distance of the slider 202 according to the received light, read the position of the triangle block 206 after stopping, calculate the comparison between the moving distance of the slider 202 and the moving distance detected by the displacement sensor 3, and calibrate the displacement sensor 3.

Embodiment 4, record the position of the triangle block 206, the operation controller 209 controls the motor 207 to rotate counterclockwise at an accelerated speed, the motor 207 drives the lead screw 208 to rotate counterclockwise, the lead screw 208 is engaged with the connecting block 205 to drive the connecting block 205 and the triangle block 206 to move rightward, the connecting block 205 drives the slider 202 to move rightward at the top of the guide rail 201, the reflector 204 reflects the light emitted by the displacement sensor 3 to the displacement sensor 3, the displacement sensor 3 calculates the moving distance of the slider 202 according to the received light, read the position of the triangle block 206 after stopping, calculate the comparison between the moving distance of the slider 202 and the moving distance detected by the displacement sensor 3 to calibrate the displacement sensor 3

Specifically, this displacement sensor calibrating device's theory of operation: the slider 202 is installed on the top of the guide rail 201 through the wheel 203, the top of the guide rail 201 is provided with a guide groove to limit the position of the wheel 203, the running stability of the slider 202 is kept, the reflector 204 is installed on one side of the slider 202, the connecting block 205 is installed on the top of the slider 202 and meshed with the screw 208, the motor 207 is controlled by the controller 209 to rotate clockwise, rotate anticlockwise and rotate at a speed, the slider 202 does constant speed variable motion on the guide rail 201, the moving distance of the slider 202 is determined by recording the reading of the triangular block 206 on a scale and is compared with the data detected by the displacement sensor 3 for calibration, the inaccuracy of detection caused by position deviation and artificial interference caused by manual operation is avoided, the structure is simple, and the displacement sensor calibration device has the effects of simple structure, low requirement on the environment, high calibration precision and high working efficiency.

It should be noted that the specific model specifications of the controller 209 and the motor 207 need to be determined by model selection according to the actual specification of the device, and the specific model selection calculation method adopts the prior art in the field, so detailed description is omitted.

The power supply of the controller 209 and the motor 207 and their principles will be clear to the skilled person and will not be described in detail here.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A displacement sensor calibration device is characterized by comprising,

a workbench component (1), wherein the workbench component (1) comprises a workbench (101), supporting legs (102), a first supporting plate (103), a second supporting plate (104), a top plate (105), a bearing (106) and a scale (107), the supporting legs (102) are arranged at the bottom of the workbench (101), the first supporting plate (103) is arranged at one side of the workbench (101), the second supporting plate (104) is installed at the other side of the workbench (101), the top plate (105) is mounted on top of the first support plate (103) and the second support plate (104), the bearing (106) is arranged at one side of the first supporting plate (103), a first groove (108) is formed at the top of the top plate (105), the scale (107) is arranged on one side of the top plate (105), and a displacement sensor (3) is arranged on one side of the top of the workbench (101);

the calibration device assembly (2) comprises a guide rail (201), a sliding block (202), wheels (203), a light reflecting plate (204), a connecting block (205), a triangular block (206), a motor (207), a screw rod (208) and a controller (209), wherein a second groove (2010) is formed in the bottom of the sliding block (202), the guide rail (201) is installed on the other side of the top of the workbench (101), the sliding block (202) is installed on the top of the guide rail (201), the wheels (203) are installed in the second groove (2010) through a rotating shaft, the light reflecting plate (204) is installed on one side of the sliding block (202), the connecting block (205) is installed on the top of the sliding block (202), a through hole (2011) is formed in one side of the connecting block (205), and one side of the screw rod (208) is installed on one side of the motor (207), the other side of lead screw (208) from right to left is through-connected in proper order through-hole (2011) with bearing (106), triangle block (206) install in the top of connecting block (205), motor (207) install in the one side of roof (105) bottom, controller (209) install in the one side of roof (105) top.

2. The displacement sensor calibration device according to claim 1, wherein a guide groove is formed at the top of the guide rail (201), the wheel (203) is installed between the sliding block (202) and the guide rail (201), and the wheel (203) is installed inside the guide groove.

3. A displacement sensor calibration device according to claim 1, characterized in that the inner wall of the through-hole (2011) is threaded opposite to the outer wall of the screw rod (208), and the threads are engaged with the outer wall of the screw rod (208).

4. A displacement sensor calibration device according to claim 1, wherein the outer wall of the connection block (205) is in clearance fit with the inner wall of the first recess (108).

5. A displacement sensor calibration device according to claim 1, characterized in that the triangular blocks (206) are used to identify the position of the slide (202).

6. A displacement sensor calibration device according to claim 1, wherein the reflector (204) is adapted to reflect light emitted by the displacement sensor (3).

7. A displacement sensor calibration device according to claim 1, wherein the controller (209) is adapted to control the motor (207) to either rotate clockwise or counterclockwise and to control the rotational speed of the motor (207), the controller (209) being communicatively coupled to the motor (207).