CN104457495A - Displacement sensor detecting device - Google Patents

Abstract

The invention relates to a displacement sensor detection device, comprising a base, a clamping device fixed at one end of the base for clamping a displacement sensor to be measured; a power traction device fixed at the other end of the base to provide the displacement sensor to be measured The power is used for the displacement detection of the displacement display device and the displacement indicating device; the power supply is arranged on one side of the bottom surface of the base, and is used to supply power to the displacement sensor to be measured through the external terminal connected thereto; the displacement display device is arranged on the other side of the bottom surface of the base. The side is used to display the absolute displacement of the displacement sensor to be measured; and the displacement indicating device is arranged on the power traction device and is used to indicate the relative displacement of the displacement sensor to be measured. The invention adopts external terminals, which can simplify complicated wiring and improve detection efficiency; the relative distance displacement of the displacement sensor can be conveniently read out by adopting the displacement indicating device, and the absolute distance of the displacement sensor can be visually displayed by adopting the displacement display device.

Description

Displacement sensor detection device

technical field

The present invention relates to a kind of inspection and calibration equipment in the field of sensors, in particular to a displacement sensor detection device which can directly display and read out the displacement.

Background technique

In the field of automation, the displacement sensor is widely used in the position control of the manufacturing device of the product and the position control of the product relative to the manufacturing device, or the inspection of the product. As a measuring instrument, its accuracy needs to be guaranteed by calibration. It also needs regular inspections to ensure its accuracy. The existing displacement sensor detection device is not only complex in structure, large in size, cumbersome in wiring, and inconvenient to carry, but also requires replacement of the corresponding clamping device for displacement sensors of different sizes. Therefore, , It is often difficult to meet the needs of on-site testing.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the technical problems existing in the prior art, and provide a displacement sensor for different types that only needs to be clamped once, and has the advantages of simple operation, stable performance, simple wiring, accurate detection results and high precision. Displacement sensor detection device.

In order to solve the problems of the technologies described above, the technical scheme adopted in the present invention is as follows:

A displacement sensor detection device, comprising a base,

A clamping device, fixed at one end of the base, for clamping the displacement sensor to be measured;

A power traction device, fixed on the other end of the base, provides the power of the displacement sensor to be measured for the displacement detection of the displacement display device and the displacement indicating device;

A power supply, arranged on one side of the bottom surface of the base, is used to supply power to the displacement sensor to be measured through the external terminal connected thereto;

a displacement display device, arranged on the other side of the bottom surface of the base, for displaying the absolute displacement of the displacement sensor to be measured; and

A displacement indicating device is arranged on the power traction device and is used to indicate the relative displacement of the displacement sensor to be measured.

Further, the clamping device includes a U-shaped clamping seat and a buffer pad, the U-shaped clamping seat is fixed on the base, and the buffer pad is fixed on a U of the U-shaped clamping seat by screws. on the side of the shape.

Further, the power traction device includes a pulley and a screw, the screw is inlaid inside the base, one end of the screw is fixed on the side of the base, and the other end protrudes from the side of the base and The pulley key connection.

Further, the displacement display device is a digital display device supporting two pulses of current, voltage and A/B.

Further, the displacement indicating device is arranged on the screw rod, including a screw nut, a sliding seat, a scale, a pointer and a wire positioning pin, the screw nut is threadedly connected with the screw rod, and the sliding seat is arranged on the screw rod. At the same time, a pointer and a stay wire positioning pin are fixed on the sliding seat, and the scale is arranged on the base near the pointer side.

The beneficial effects of the present invention are: the use of external terminals can make complex wiring clear and simple, reduce errors, and improve detection efficiency; the use of screw pairs to transmit power reduces the cost of equipment while realizing precise adjustment of small displacements. Weight; the relative distance displacement of the displacement sensor can be easily read out by using the displacement indicating device, and the moving distance of the displacement sensor can be intuitively displayed by using the displacement display device, which is convenient for detection and use, and the displacement display device can support the output signals of various displacement sensors.

Description of drawings

Below in conjunction with accompanying drawing, the present invention is described in further detail;

Fig. 1 is a perspective view of a displacement sensor detection device of the present invention;

Fig. 2 is the front view of a kind of displacement sensor detecting device of the present invention;

Fig. 3 is a left view of a displacement sensor detection device of the present invention;

Fig. 4 is a right side view of a displacement sensor detection device of the present invention;

Fig. 5 is a top view of a displacement sensor detection device of the present invention.

In the figure: 1. base, 2. clamping device, 3. power traction device, 4. power supply, 5. displacement display device, 6. displacement indicating device, 7. U-shaped clamping seat, 8. buffer pad, 9. Pulley, 10. Screw mandrel, 11. Key, 12. Digital display, 13. Screw nut, 14. Sliding seat, 15. Scale, 16. Pointer, 17. Pull wire positioning pin, 18. Positioning plate, 19. Back cover , 20. Lip seal ring, 21. Bearing, 22. Bearing cover, 23. Inner spacer, 24. Front set, 25. Outer spacer, 26. External terminal, 27. Plug.

Detailed ways

Below in conjunction with accompanying drawing, the present invention will be described in further detail:

The invention is a special device for detecting the displacement sensor. It can quickly detect the real displacement and relative displacement of the displacement sensor. The detection device has the characteristics of simple operation, stable performance, simple wiring, accurate detection results and high precision. The displacement sensor detection device of the present invention can be applied to displacement sensor manufacturers, automobile maintenance enterprises, universities, scientific research institutes and national metrology and quality supervision departments.

The present invention adopts external terminals, which can make complex wiring clear and simple, reduce errors, and improve detection efficiency; adopt screw pair to transmit power, and reduce the weight of equipment while realizing precise adjustment of small displacement; adopt displacement indication The device can conveniently read the relative distance displacement of the displacement sensor, and the displacement display device can intuitively display the moving distance of the displacement sensor, which is convenient for detection and use, and the displacement display device can support output signals of various displacement sensors.

As shown in Figure 1, a kind of displacement sensor detection device comprises a base 1, a clamping device 2, is fixed on one end of described base 1, is used for clamping the displacement sensor to be measured; A power traction device 3, fixes At the other end of the base 1, the power of the displacement sensor to be measured is provided for the displacement detection of the displacement display device 5 and the displacement indicating device 6; a power supply 4 is arranged on one side of the bottom surface of the base 1 for passing through The connected external terminal 26 supplies power to the displacement sensor to be measured; a displacement display device 5 is arranged on the other side of the bottom surface of the base 1 for displaying the absolute displacement of the displacement sensor to be measured; and a displacement indicating device 6 is arranged on The power traction device 3 is used to indicate the relative displacement of the displacement sensor to be measured.

In order to further illustrate the technical solution of the present invention, as shown in Figures 2-5, a clamping device 2 in a displacement sensor detection device includes a U-shaped clamping seat 7 and a buffer pad 8, and the U-shaped clamping seat 7 It is fixed on the left end of the base 1 by screws, and the buffer pad 8 is fixed on a U-shaped side of the U-shaped clamping seat 7 by a knurled small-head screw, and the length of the knurled small-head screw can be adjusted to achieve the use of the buffer pad 8 One-time clamping for the size of different types of displacement sensors.

Described power traction device 3 comprises pulley 9 and screw mandrel 10, and screw mandrel 10 is embedded in the inside of base 1, and the left end of its screw mandrel 10 stretches out the side wall of base 1 and is equipped with rear cover 19 at its connection position, and this rear A lip seal 20 and a bearing 21 are embedded between the sleeve 19 and the screw rod 10, and an inner spacer 23 is also provided between the rear sleeve 19 and the side wall of the base 1, and a bearing cover 22 is covered above the bearing 21. , the bearing cover 22 fixes the back cover 19, the bearing cover 22 and the inner spacer 23 through the screws provided thereon, and the right end of the screw rod 10 is provided with a keyway and protrudes from the side wall of the base 1, and at the same time at its connecting position A front sleeve 24 is installed, and a lip seal ring 20 and a bearing 21 are embedded between the front sleeve 24 and the screw rod 10. In addition, an inner spacer 23 is also provided between the front sleeve 24 and the side wall of the base 1, A bearing cap 22 is covered above the bearing 21, and an outer spacer 25 is installed between the bearing cap 22 and the screw mandrel 10. A lip seal 20 is embedded between the outer spacer 25 and the bearing cap 22, extending out from the base 1 The screw mandrel of side wall is connected with pulley 9 keys by key 11.

The power supply 4 is a 24V switching power supply, which is arranged on one side of the bottom surface of the base 1, and can supply power to the displacement sensor to be measured through the external terminal 26 connected thereto; in addition, the power supply 4 is also provided with a plug 27, which can be directly connected to an AC power supply Power supply for power supply 4, digital display instrument 12. The power supply 4 can also output DC power of 5V, 12V and 24V. The external terminal 26 actually integrates the power supply 4 and the terminals carried by the digital display 12 . Therefore, it can be displayed by the digital display 12 only by inserting the line of the displacement sensor to be measured into the external terminal 26 .

The displacement display device 5 is a digital display device 12 compatible with current, voltage and A/B two pulses, which is arranged on the other side of the bottom surface of the base 1, and can visually display the absolute displacement of the displacement sensor to be measured, which is convenient for detection and reading. Improve detection efficiency.

Described displacement indication device 6 is arranged on 10 screw mandrels, comprises screw nut 13, sliding seat 14, scale 15, pointer 16 and stay wire positioning pin 17, and screw nut 13 forms threaded connection with screw mandrel 10, and sliding seat 14 is arranged on the threaded screw. On the nut 13, the rotation of the pulley 9 can drive the nut 13 and the sliding seat 14 to move freely left and right. The sliding seat 14 is also fixed with a pointer 16 and a stay wire positioning pin 17. The stay wire positioning pin 17 can pull the displacement sensor to be measured. The rope is wound on it, and the movement of the sliding seat 14 is used to indicate a certain position of the scale through the pointer 16, which is used to detect the relative displacement of the displacement sensor. The scale 15 is arranged on the positioning plate 18 near the pointer 16 side, and the positioning plate 18 is fixed on the base 1.

The use method of the displacement sensor detection device of the present invention:

Place the pull-wire displacement sensor on the U-shaped clamping seat 7, twist the knurled small-head screw on the U-shaped clamping seat 7, so that the buffer pad squeezes and fixes the pull-wire displacement sensor on the U-shaped clamping seat 7 . Pull out the pull head of the pull-wire displacement sensor and fix it on the positioning pin 17 of the displacement indicating device 6 . Connect the power line and signal line of the pull-wire displacement sensor to the external terminal 26. According to the power supply requirements of the displacement sensor, the external terminal 26 provides three power supplies of DC 5V, 12V, and 24V, and a signal receiving terminal that provides AB quadrature pulse signals, 0-20mA current signals, and 0-10V voltage signals. According to the type of the pull-wire displacement sensor, it is selected to be connected to the external terminal 26 . The external plug 27 is directly connected with the 220V AC power supply to supply power to the digital display 12 and the power supply 4 . Turn on the power switch, and the digital display instrument 12 and the power supply 4 are energized and enter the normal working state. Adjust the parameters of the digital display 12 according to the parameters provided by the pull-wire displacement sensor, so that the displacement numbers displayed by the digital display 12 correspond to the actual displacement.

Through the power traction device 3, hold the handle to rotate the wheel, drive the lead screw 10 to rotate forward or reverse, and make the displacement indicating device 6 move back and forth horizontally on the lead screw 10, thereby driving the slider of the pull-out type displacement sensor to move, Change the length of the pull wire of the pull wire displacement sensor. Before testing the pull-wire displacement sensor, first move the displacement indicating device 6 to the end of the U-shaped clamping seat 7, make the pointer on the displacement indicating device 6 coincide with the 0 scale of the scale 15, and then reset the digital display 12 to zero . Make the pointer on the displacement indicating device 6 move a certain amount of displacement by the power traction device 3, and observe whether the displacement number shown by the digital display 12 is equal to the pointer movement displacement on the displacement indicating device 6. If they are equal, it means that the pull-wire displacement sensor is working normally. If not, it means that the measured displacement of the pull-wire displacement sensor deviates from the actual one. The greater the deviation, the lower the accuracy.

The pull-wire type displacement sensor whose parameters are not determined can also be tested by the displacement sensor detecting device of the present invention. The method is: adjust the displacement figures displayed by the digital display 12 to make it equal to the displacement of the pointer on the displacement indicating device 6, and the parameters of the gained digital display 12 are the parameters of the pull-wire displacement sensor.

Finally, it is noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than limit it. Those of ordinary skill in the art should understand that the technical solution of the present invention can be modified or equivalently replaced without departing from the purpose of the technical solution of the present invention. All should be included in the scope of the claims of the present invention.

Claims (5)

1. A displacement sensor detection device, characterized in that: comprising a base, A clamping device, fixed at one end of the base, for clamping the displacement sensor to be measured; A power traction device, fixed on the other end of the base, provides the power of the displacement sensor to be measured for the displacement detection of the displacement display device and the displacement indicating device; A power supply, arranged on one side of the bottom surface of the base, is used to supply power to the displacement sensor to be measured through the external terminal connected thereto; a displacement display device, arranged on the other side of the bottom surface of the base, for displaying the absolute displacement of the displacement sensor to be measured; and A displacement indicating device is arranged on the power traction device and is used to indicate the relative displacement of the displacement sensor to be measured. 2. A displacement sensor detection device according to claim 1, wherein the clamping device comprises a U-shaped clamping seat and a buffer pad, and the U-shaped clamping seat is fixed on the base, so that The buffer pad is fixed on a U-shaped side of the U-shaped clamping seat by screws. 3. A displacement sensor detection device according to claim 1, wherein the power traction device comprises a pulley and a screw, the screw is embedded in the base, and one end of the screw is fixed on the On the side of the base, the other end protrudes from the side of the base and is connected with the pulley key. 4 . A displacement sensor detection device according to claim 1 , wherein the displacement display device is a digital display device supporting current, voltage and A/B pulses. 5. A kind of displacement sensor detection device according to claim 3, is characterized in that, described displacement indicating device is arranged on described screw mandrel, comprises screw nut, sliding seat, scale, pointer and stay wire positioning pin, and described The screw nut is threadedly connected with the screw mandrel, and the slide seat is arranged on the screw nut, and a pointer and a stay wire positioning pin are also fixed on the slide seat, and the scale is arranged on a base near the pointer side.