Multifunctional batch testing equipment for linear displacement sensors

Abstract

This invention discloses a multifunctional batch testing device for linear displacement sensors, comprising a sensor clamping drive mechanism and a high-low temperature chamber. The sensor clamping drive mechanism includes a base, a clamping mounting bracket, a clamping pressure rod, an oblique transmission rod, a vertical transmission rod, a horizontal transmission rod, an adjusting bolt, a drive motor, a drive plate, a drive screw, and a guide rod. One or more sensor clamping drive mechanisms are placed inside the testing cavity of the high-low temperature chamber. A controller is installed on the outer wall of the high-low temperature chamber. The control input terminals of the drive motors of the one or more sensor clamping drive mechanisms are connected to the corresponding control output terminals of the controller via wires. This invention achieves multifunctionality, is compatible with various conventional types of linear displacement sensors, has strong versatility, and can complete batch testing of multiple linear displacement sensors at once. Furthermore, the high-low temperature adjustment function within the high-low temperature chamber meets the application requirements for high-low temperature environment testing.

Description

Technical Field

[0001] This invention belongs to the field of sensor testing technology, specifically relating to a linear displacement sensor testing device, and more specifically to a multifunctional batch testing device for linear displacement sensors. Background Technology

[0002] A linear displacement sensor is a sensor used to convert linear mechanical displacement into an electrical signal to achieve linear displacement detection. It is widely used in shipbuilding, aviation, aerospace, weaponry, and other complete machine systems. Commonly used linear displacement sensors include push-rod type, pull-rod type, draw-string type, and sliding handle type.

[0003] Before leaving the factory, linear displacement sensors generally need to undergo testing procedures such as accuracy testing or sliding life sampling testing. Before testing, the linear displacement sensor needs to be clamped. During the testing process, the driving component of the linear displacement sensor needs to be driven, and the output signal of the linear displacement sensor needs to be detected. The test purpose is achieved by combining the test results and parameters such as the number of reciprocations.

[0004] Traditional clamping and driving devices for testing linear displacement sensors are designed for only one type of linear displacement sensor. They have a simple structure and function, poor versatility, and can generally only complete the testing of one sensor at a time, resulting in low efficiency. In addition, the traditional testing environment is a normal temperature environment, which cannot meet the application requirements of high and low temperature environment testing. Summary of the Invention

[0005] The purpose of this invention is to provide a versatile, multi-functional batch testing device for linear displacement sensors that can perform batch testing in high and low temperature environments in order to solve the above-mentioned problems.

[0006] The present invention achieves the above objectives through the following technical solutions:

[0007] A multifunctional batch testing device for linear displacement sensors includes a sensor clamping and driving mechanism and a high-low temperature chamber. The sensor clamping and driving mechanism includes a base, clamping mounting brackets, clamping pressure rods, oblique transmission rods, vertical transmission rods, horizontal transmission rods, adjusting bolts, a drive motor, a drive plate, a drive screw, and a guide rod. One or more vertically overlapping horizontal mounting plates are provided at the first end of the base. Multiple clamping mounting brackets are respectively mounted on the base and located above the mounting plates. The middle sections of multiple clamping pressure rods are rotatably connected to multiple clamping mounting brackets. One end of each clamping pressure rod is rotatably connected to one end of each oblique transmission rod, and the other end of each oblique transmission rod is rotatably connected to the upper end of each vertical transmission rod. The lower ends of each vertical transmission rod pass through corresponding through holes on the mounting plates. One end of each horizontal transmission rod located above each mounting plate is connected to each vertical transmission rod. The lower ends of multiple vertical adjusting bolts pass through vertical screw holes at the other ends of each horizontal transmission rod and are threaded together. Each adjusting bolt has a rubber pad installed at its lower end and is located above the corresponding mounting plate. The drive motor is installed in the middle of the second end of the two ends of the base. One end of the horizontal drive screw is connected to the shaft of the drive motor, and the other end of the drive screw is connected to the first end of the base through a bearing and is located below the lowest mounting plate. The two ends of the two horizontal and parallel guide rods are respectively connected to the two ends of the base and are located on both sides of the drive screw. The vertical drive plate has a horizontal screw hole and is fitted onto the drive screw through the horizontal screw hole. The drive plate has horizontal guide holes on both sides of the horizontal screw hole and is fitted onto the two guide rods through the two horizontal guide holes. One or more sensor clamping drive mechanisms are placed inside the test cavity of the high and low temperature chamber. A controller is installed on the outer wall of the high and low temperature chamber. The control input end of the drive motor of one or more sensor clamping drive mechanisms is connected to the control output end of the controller through a wire. The wire passes through the corresponding wire through hole on the wall of the high and low temperature chamber.

[0008] Preferably, in order to facilitate reliable clamping operation, the clamping rod is an "L" shaped rod, the middle corner of the clamping rod is rotatably connected to the corresponding clamping mounting bracket, one end of the clamping rod is rotatably connected to one end of the corresponding inclined transmission rod, and the other end of the clamping rod is provided with a handle.

[0009] Preferably, to enable batch testing and facilitate clamping and driving operations, there are two mounting plates. The driving plate includes a lower fixed driving plate, a middle adjusting driving plate, and an upper driving plate pressure plate. The transverse screw holes and transverse guide holes are both provided on the fixed driving plate. The upper end of the fixed driving plate is in contact with the lower end of the adjusting driving plate and is located obliquely above the lower mounting plate. The upper end of the adjusting driving plate is in contact with the lower end of the driving plate pressure plate and is located obliquely above the upper mounting plate. The upper end face of the fixed driving plate, the upper and lower end faces of the adjusting driving plate, and the lower end face of the driving plate pressure plate are each provided with multiple corresponding semi-circular clamping grooves. Two opposite semi-circular clamping grooves enclose a circular clamping through hole. The multiple circular clamping through holes correspond one-to-one with multiple adjusting bolts. The lower ends of one or more connecting screws pass through the corresponding through holes on the driving plate pressure plate and the corresponding through holes on the adjusting driving plate from top to bottom, and then connect to the corresponding screw holes on the fixed driving plate.

[0010] Preferably, in order to accommodate the installation needs of more types of sensor structures, the mounting plate is provided with multiple strip-shaped mounting slots.

[0011] Preferably, to facilitate quick operation of the adjusting bolt, the upper end of the adjusting bolt is provided with a butterfly-shaped handle.

[0012] Preferably, for ease of assembly, the second end of the base is connected to a base end plate by screws, and one end of the two guide rods is connected to the base end plate.

[0013] Preferably, in order to facilitate reliable connection with the slider of the slider-type linear displacement sensor, the multifunctional batch testing equipment for testing linear displacement sensors further includes multiple connecting rods. One end of each connecting rod is provided with a connecting rod protrusion ring that protrudes outward in the circumferential direction for connection with the drive plate, and the other end of each connecting rod is provided with a connecting post for connection with the slider of the slider-type linear displacement sensor.

[0014] The beneficial effects of this invention are as follows:

[0015] This invention integrates the clamping and driving structures of multiple linear displacement sensors onto a single base. Rubber pads at the lower ends of multiple adjusting bolts enable clamping and pressing of the housings of different types of linear displacement sensors. Rotation of the clamping rod drives the vertical and horizontal transmission rods and adjusting bolts downwards synchronously, achieving simultaneous clamping and pressing of multiple linear displacement sensors. A drive motor drives the drive plate laterally, enabling synchronous drive control of multiple linear displacement sensors. Ultimately, this invention achieves multi-functionality, compatible with various conventional types of linear displacement sensors, offering strong versatility. It allows for batch testing of multiple linear displacement sensors in a single operation and meets the application requirements of high and low temperature environment testing through the high and low temperature adjustment function within the high and low temperature chamber. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the multifunctional batch testing equipment for linear displacement sensor testing described in this invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the clamping mounting bracket, clamping pressure rod, oblique transmission rod, vertical transmission rod, horizontal transmission rod, and adjusting bolts assembled in the multifunctional batch testing equipment for linear displacement sensor testing described in this invention.

[0018] Figure 3 This is a three-dimensional structural schematic diagram of the sensor clamping drive mechanism of the multifunctional batch testing equipment for linear displacement sensor testing described in this invention;

[0019] Figure 4 This is a three-dimensional structural diagram of the connecting rod of the multifunctional batch testing equipment for linear displacement sensor testing described in this invention.

[0020] In the diagram, 1-door, 2-high and low temperature chamber, 3-test cavity, 4-sensor clamping drive mechanism, 5-controller, 6-display screen, 7-wire through hole, 8-wire, 9-pressure rod handle, 10-clamping pressure rod, 11-clamping mounting bracket, 12-slanted transmission rod, 13-vertical transmission rod, 14-horizontal transmission rod, 15-adjusting bolt, 16-rubber pad, 17-base, 18-mounting slot, 19-mounting plate, 20-connecting screw, 21-drive plate pressure plate, 22-semi-circular clamping slot, 23-adjusting drive plate, 24-fixed drive plate, 25-guide rod, 26-drive screw, 27-drive motor, 28-base end plate, 29-connecting rod protrusion ring, 30-connecting rod, 31-connecting column. Detailed Implementation

[0021] The present invention will be further described below in conjunction with the accompanying drawings:

[0022] like Figure 1-Figure 4As shown, the multifunctional batch testing equipment for linear displacement sensors of the present invention includes a sensor clamping drive mechanism 4 and a high and low temperature chamber 2. The sensor clamping drive mechanism 4 includes a base 17, clamping mounting brackets 11, clamping pressure rods 10, oblique transmission rods 12, vertical transmission rods 13, horizontal transmission rods 14, adjusting bolts 15, a drive motor 27, a drive plate, a drive screw 26, and a guide rod 25. One or more (two in the figure) vertically overlapping horizontal mounting plates 19 are provided at the first end of both ends of the base 17. Multiple clamping mounting brackets 11 are respectively installed on the base 17 and located on the mounting plates 19. Above 9, the middle sections of multiple clamping rods 10 are rotatably connected to multiple clamping mounting brackets 11, one end of each clamping rod 10 is rotatably connected to one end of each of multiple inclined transmission rods 12, and the other end of each of the inclined transmission rods 12 is rotatably connected to the upper end of each of the multiple vertical transmission rods 13. The lower ends of each of the multiple vertical transmission rods 13 pass through corresponding through holes on the mounting plate 19. One end of each of the multiple horizontal transmission rods 14 located above each mounting plate 19 is connected to each of the multiple vertical transmission rods 13. The lower ends of each of the multiple vertical adjusting bolts 15 pass through the vertical screw holes at the other end of each of the multiple horizontal transmission rods 14 and are threaded. The connection is as follows: a rubber pad 16 is installed at the lower end of each adjusting bolt 15 and is located above the corresponding mounting plate 19. The drive motor 27 is installed in the middle of the second end of the two ends of the base 17. One end of the horizontal drive screw 26 is connected to the shaft of the drive motor 27, and the other end of the drive screw 26 is connected to the first end of the base 17 through a bearing and is located below the lowest mounting plate 19. The two ends of the two horizontal and parallel guide rods 25 are respectively connected to the two ends of the base 17 and are located on both sides of the drive screw 26. The vertical drive plate is provided with a horizontal screw hole (not marked in the figure) and a sleeve is fitted through the horizontal screw hole. Mounted on the drive screw 26, the drive plate has transverse guide holes (not marked in the figure) on both sides of the transverse screw hole, and is fitted onto two guide rods 25 through the two transverse guide holes; one or more sensor clamping drive mechanisms 4 are placed in the test cavity 3 of the high and low temperature chamber 2, and a controller 5 is installed on the outer wall of the high and low temperature chamber 2. The control input terminal of the drive motor 27 of one or more (one in the figure, but more can be used) sensor clamping drive mechanisms 4 is connected to the control output terminal of the controller 5 through wires 8, and the wires 8 pass through the corresponding wire through holes 7 on the wall of the high and low temperature chamber 2.

[0023] like Figure 1-Figure 4 As shown, the present invention also discloses the following more optimized specific structures:

[0024] To facilitate reliable clamping operations, the clamping rod 10 is an "L"-shaped rod. The middle corner of the clamping rod 10 is rotatably connected to the corresponding clamping mounting bracket 11. One end of the clamping rod 10 is rotatably connected to one end of the corresponding inclined transmission rod 12. The other end of the clamping rod 10 is provided with a rod handle 9.

[0025] To facilitate batch testing and easy clamping and driving operations, two mounting plates 19 are provided. The driving plate includes a lower fixed driving plate 24, a middle adjusting driving plate 23, and an upper driving plate pressure plate 21. The transverse screw holes and transverse guide holes are both provided on the fixed driving plate 24. The upper end of the fixed driving plate 24 is in contact with the lower end of the adjusting driving plate 23 and is located diagonally above the lower mounting plate 19. The upper end of the adjusting driving plate 23 is in contact with the lower end of the driving plate pressure plate 21 and is located diagonally above the upper mounting plate 19. The upper end face of the fixed drive plate 24, the upper and lower end faces of the adjusting drive plate 23, and the lower end face of the drive plate pressure plate 21 are respectively provided with a plurality of corresponding semi-circular clamping grooves 22. Two opposite semi-circular clamping grooves 22 enclose a circular clamping through hole. The plurality of circular clamping through holes correspond one-to-one with a plurality of adjusting bolts 15. The lower ends of one or more connecting screws 20 pass through the corresponding through holes on the drive plate pressure plate 21 and the corresponding through holes on the adjusting drive plate 23 from top to bottom and are connected to the corresponding screw holes on the fixed drive plate 24.

[0026] To accommodate the installation needs of more types of sensor structures, the mounting plate 19 is provided with multiple strip-shaped mounting slots 18.

[0027] To facilitate quick operation of the adjusting bolt 15, a butterfly handle (not marked in the figure) is provided at the upper end of the adjusting bolt 15.

[0028] For ease of assembly, the second end of the base 17 is connected to the base end plate 28 by screws, and one end of the two guide rods 25 is connected to the base end plate 28.

[0029] To facilitate reliable connection with the slider of the slider-type linear displacement sensor, the multifunctional batch testing equipment for testing linear displacement sensors also includes multiple connecting rods 30. One end of the connecting rod 30 is provided with a connecting rod protrusion ring 29 that protrudes outward in the circumferential direction and is used to connect with the drive plate. The other end of the connecting rod 30 is provided with a connecting post 31 for connecting with the slider of the slider-type linear displacement sensor.

[0030] Figure 1 The diagram also shows the door 1 of the high and low temperature chamber 2 and the display screen 6 located on the outer wall of the high and low temperature chamber 2, both of which are conventional structures. In addition, a wire groove (not marked in the figure) is provided on the bottom surface of the base 17 for leading out the leads of multiple linear displacement sensors (not shown in the figure) mounted on the mounting plate 19 and connecting them together with the wire 8 to the controller 5.

[0031] like Figure 1-Figure 4 As shown, in use, multiple linear displacement sensors are first installed on the sensor clamping drive mechanism 4. The specific method is as follows: First, lift the pressure rod handle 9 upward, causing it to drive the corresponding oblique transmission rod 12 upward and rotate accordingly, thereby driving the corresponding vertical transmission rod 13 and horizontal transmission rod 14 upward. The corresponding adjusting bolt 15 moves upward, increasing the distance between the rubber pad 16 at its lower end and the corresponding mounting plate 19. This facilitates placing the linear displacement sensor on the mounting plate 19 and directly below the rubber pad 16 at the lower end of the corresponding adjusting bolt 15. Then, press the pressure rod handle 9 downward until it drives the corresponding... The oblique transmission rod 12 moves downward and rotates to the vertical position. At this time, the oblique transmission rod 12 drives the corresponding vertical transmission rod 13, horizontal transmission rod 14 and adjusting bolt 15 to move downward to the limit position. By pre-adjusting the position of the adjusting bolt 15, the rubber pad 16 at the lower end of the adjusting bolt 15 just presses the corresponding linear displacement sensor housing tightly. The friction between the rubber pad 16 and the housing of the linear displacement sensor can be used to keep the driving component of the linear displacement sensor stationary when it is driven without damaging the housing of the linear displacement sensor. This completes the clamping and fixing installation of the linear displacement sensor.

[0032] After installing multiple linear displacement sensors using this method, the driving components of the linear displacement sensors need to be connected to the corresponding driving board. The specific method is as follows: If it is a push rod type linear displacement sensor, it is not necessary to connect its push rod, or the end of the push rod can be passed through the corresponding circular clamping through hole; if it is a pull rod type linear displacement sensor, the end of the pull rod can be passed through the corresponding circular clamping through hole; if it is a drawstring type linear displacement sensor, the end of the drawstring can be passed through the corresponding circular clamping through hole; if it is a sliding handle type linear displacement sensor, the sliding handle can be connected to the connecting post of the connecting rod 30, and the connecting rod 30 can be passed through the corresponding circular clamping through hole; after all the driving components of the linear displacement sensors have passed through the corresponding circular clamping through holes, tighten the connecting screw 20 to complete the connection of the driving components of all linear displacement sensors.

[0033] Then, the sensor clamping drive mechanism 4 with the linear displacement sensor installed is placed in the test cavity 3 of the high and low temperature chamber 2. The leads of multiple linear displacement sensors (not shown in the figure) and the wires 8 of the drive motor 27 are passed through the wire through hole 7 and connected to the controller 5. The chamber door 1 is closed, and the temperature inside the high and low temperature chamber 2 is adjusted according to the test requirements. The power supply of multiple linear displacement sensors is then connected, and the drive motor 27 is started, causing it to drive the drive screw 26 to rotate. The fixed drive plate 24 moves linearly under the action of the threaded engagement with the drive screw 26, driving the drive components of each linear displacement sensor to move linearly synchronously. Each linear displacement sensor outputs a corresponding electrical signal. The controller 5 completes the relevant test work according to the detected electrical signal or the control signal to the drive motor 27.

[0034] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the technical solutions of the present invention. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of the patent of the present invention.

Claims

1. A multifunctional batch testing device for linear displacement sensors, comprising a sensor clamping and driving mechanism, characterized in that: The system also includes a high and low temperature chamber. The sensor clamping drive mechanism includes a base, clamping mounting brackets, clamping pressure rods, oblique transmission rods, vertical transmission rods, horizontal transmission rods, adjusting bolts, a drive motor, a drive plate, a drive screw, and a guide rod. One or more vertically overlapping horizontal mounting plates are provided at the first end of both ends of the base. Multiple clamping mounting brackets are respectively mounted on the base and located above the mounting plates. The middle sections of multiple clamping pressure rods are rotatably connected to multiple clamping mounting brackets. One end of each clamping pressure rod is rotatably connected to one end of each oblique transmission rod. The other end of each oblique transmission rod is rotatably connected to the upper end of each vertical transmission rod. The lower ends of each vertical transmission rod pass through corresponding through holes on the mounting plate. One end of each horizontal transmission rod located above each mounting plate is connected to each vertical transmission rod. The lower ends of multiple vertical adjusting bolts pass through vertical screw holes at the other ends of multiple horizontal transmission rods and are threaded together. Each adjusting bolt has a rubber bushing installed at its lower end. A rubber pad is located above the corresponding mounting plate. The drive motor is installed in the middle of the second end of the two ends of the base. One end of the horizontal drive screw is connected to the shaft of the drive motor. The other end of the drive screw is connected to the first end of the base through a bearing and is located below the lowest mounting plate. The two ends of the two horizontal and parallel guide rods are respectively connected to the two ends of the base and are located on both sides of the drive screw. The vertical drive plate is provided with a horizontal screw hole and is fitted onto the drive screw through the horizontal screw hole. The drive plate is provided with horizontal guide holes on both sides of the horizontal screw hole and is fitted onto the two guide rods through the two horizontal guide holes. One or more sensor clamping drive mechanisms are placed inside the test cavity of the high and low temperature chamber. A controller is installed on the outer wall of the high and low temperature chamber. The control input terminal of the drive motor of one or more sensor clamping drive mechanisms is connected to the control output terminal of the controller through a wire. The wire passes through the corresponding wire through hole on the wall of the high and low temperature chamber.The mounting plates consist of two parts. The drive plate includes a lower fixed drive plate, a middle adjusting drive plate, and an upper drive plate pressure plate. The transverse screw holes and transverse guide holes are both located on the fixed drive plate. The upper end of the fixed drive plate contacts the lower end of the adjusting drive plate and is located diagonally above the lower mounting plate. The upper end of the adjusting drive plate contacts the lower end of the drive plate pressure plate and is located diagonally above the upper mounting plate. The upper end face of the fixed drive plate, the upper and lower end faces of the adjusting drive plate, and the lower end face of the drive plate pressure plate are each provided with multiple corresponding semi-circular clamping grooves. Two opposite semi-circular clamping grooves together form a circular clamping through hole. Each of the circular clamping through holes corresponds to a plurality of adjusting bolts. The lower ends of one or more connecting screws pass sequentially from top to bottom through the corresponding through holes on the drive plate pressure plate and the corresponding through holes on the adjusting drive plate before connecting to the corresponding screw holes on the fixed drive plate.

2. The multifunctional batch testing equipment for linear displacement sensors according to claim 1, characterized in that: The clamping rod is an "L" shaped rod. The middle corner of the clamping rod is rotatably connected to the corresponding clamping mounting bracket. One end of the clamping rod is rotatably connected to one end of the corresponding inclined transmission rod. The other end of the clamping rod is provided with a handle.

3. The multifunctional batch testing equipment for linear displacement sensors according to claim 1 or 2, characterized in that: The mounting plate is provided with multiple strip-shaped mounting slots.

4. The multifunctional batch testing equipment for linear displacement sensors according to claim 1 or 2, characterized in that: The upper end of the adjusting bolt is provided with a butterfly-shaped handle.

5. The multifunctional batch testing equipment for linear displacement sensors according to claim 1 or 2, characterized in that: The second end of the base is connected to a base end plate by screws, and one end of each of the two guide rods is connected to the base end plate.

6. The multifunctional batch testing equipment for linear displacement sensors according to claim 1 or 2, characterized in that: The multifunctional batch testing equipment for linear displacement sensors also includes multiple connecting rods. One end of each connecting rod has a connecting rod protrusion ring that protrudes outward and is used to connect with the drive plate. The other end of each connecting rod has a connecting post for connecting with the sliding handle of a sliding handle linear displacement sensor.

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