CN216432851U

CN216432851U - Device for measuring micro displacement by using laser

Info

Publication number: CN216432851U
Application number: CN202122776782.6U
Authority: CN
Inventors: 朱任玉; 范剑英
Original assignee: Harbin University of Science and Technology
Current assignee: Harbin University of Science and Technology
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-05-03
Anticipated expiration: 2031-11-15

Abstract

The utility model discloses a device for measuring micro-displacement by using laser, which relates to the technical field of measurement and comprises a measuring device, wherein the lower end of the measuring device is connected with a fixed seat, both sides of the fixed seat are connected with connecting plates, one side of the measuring device is provided with a laser emitter, a CCD camera is arranged below the laser emitter, the measuring angle of the measuring device can be timely adjusted according to the displacement angle of a measured object by adjusting the position of a limiting column between different limiting blocks without disassembly, so that the detection angle of the measuring device can be always consistent with the angle of the measured object, the connecting plates are connected by three connecting screw rods on both sides of a bottom plate, the surface of each connecting plate is provided with two mounting holes for mounting on a fixed bracket, and both sides of the bottom plate are provided with corresponding threaded holes, the fixing seat can be arranged on the surfaces of the fixing supports with different sizes, and the operation is simple and convenient.

Description

Device for measuring micro displacement by using laser

Technical Field

The utility model relates to a measure technical field, specifically be an utilize laser to carry out micro displacement measuring device.

Background

The micro-displacement measurement is more widely needed in the production of various fields such as the industry at present, they may be static or dynamic measurement, also may be online or offline detection, the detection precision is more with the requirement of 1 micron to 10 microns and tens of microns, when carrying out micro-displacement measurement, need fix it on the support and continuously measure the testee, lead to micro-displacement measurement equipment can not carry out accurate regulation and measurement, easily receive the removal of testee and influence the accuracy of measured data, and current micro-displacement measurement equipment carries convenient inadequately, consequently the utility model provides an utilize laser to carry out micro-displacement measurement's device, solved foretell problem.

SUMMERY OF THE UTILITY MODEL

The utility model provides an utilize laser to carry out little displacement measurement's device to the not enough of prior art, solved the problem that above-mentioned background art provided.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a device for measuring micro displacement by using laser comprises measuring equipment, wherein the lower end of the measuring equipment is connected with a fixed seat, and two sides of the fixed seat are both connected with connecting plates;

the fixing seat comprises a bottom plate, the upper surface of the bottom plate is connected with a connecting column, the upper surface of the bottom plate is provided with a clamping groove, and an arc-shaped plate is inserted into the inner side of the clamping groove.

As the utility model discloses a further technical scheme, two the surface of connecting plate all is connected with three connecting screw, both sides connecting screw all corresponds set up threaded hole with the both sides surface of bottom plate, connecting screw is threaded connection with the bottom plate screw hole.

As a further technical scheme of the utility model, one side of measuring equipment is provided with laser emitter's below is provided with the CCD camera, laser emitter and CCD camera all are connected with measuring equipment's input.

As a further technical scheme of the utility model, the surface connection of spliced pole has solid fixed ring, gu fixed ring's surface is connected with the head rod, flexible groove has been seted up to the one end of head rod, the internal connection in flexible groove has connecting spring, connecting spring's one end is connected with the second connecting rod, second connecting rod sliding connection is in the inboard in flexible groove.

As a further technical scheme of the utility model, the one end of second connecting rod is connected with spacing post, the inside wall equidistance of arc is connected with a plurality of stopper, per two be formed with spacing groove, every between the stopper the internal diameter size of spacing groove and the external diameter size phase-match of spacing post.

As a further technical scheme of the utility model, two mounting holes have all been seted up on the surface of connecting plate, connecting screw's surface just is located and all is connected with adjusting nut between connecting plate and the bottom plate, adjusting nut's internal thread is opposite with connecting screw's external screw thread.

As a further technical scheme of the utility model, the spliced pole rotates to be connected in the upper surface of bottom plate, the upper surface of bottom plate is connected with measuring equipment's lower surface, the external diameter size of arc and the internal diameter size phase-match of draw-in groove.

Advantageous effects

The utility model provides an utilize laser to carry out micro displacement measurement's device. Compared with the prior art, the method has the following beneficial effects:

1. the utility model provides an utilize laser to carry out micrometric displacement measuring device, it is connected with the spliced pole to rotate through the upper surface at the bottom plate, the last surface connection of spliced pole is in measuring equipment's bottom surface, there is solid fixed ring at the surface connection of spliced pole, gu fixed ring's surface connection has the head rod, the internal connection of head rod has coupling spring, coupling spring's one end is connected with the second connecting rod, the one end of second connecting rod is connected with spacing post, and it has the arc to peg graft in the draw-in groove of bottom plate upper surface, the inside wall equidistance of arc is connected with a plurality of stopper, through adjusting the position of spacing post between different stoppers, can be according to measured object displacement angle and distance, in time adjust measuring equipment's measurement angle, need not to dismantle, make measuring equipment's detection angle can remain unanimously with measured object angle throughout.

2. The utility model provides an utilize laser to carry out micro displacement measurement's device, all is connected with the connecting plate through three connecting screw through the both sides at the bottom plate, and two mounting holes have all been seted up on the surface of connecting plate and have been used for installing on the fixed bolster, and have all seted up corresponding screw hole in the both sides of bottom plate for the fixing base can be installed in the surface of unidimensional fixed bolster, and simple structure, it is convenient to install, extends the installation application range of this device, and easily carries.

Drawings

FIG. 1 is a schematic structural diagram of an apparatus for micro-displacement measurement using laser;

FIG. 2 is a schematic structural diagram of a fixing base and a connecting plate of an apparatus for measuring micro-displacement by using laser;

FIG. 3 is a top view of a fixing base and a connecting plate of an apparatus for measuring micro-displacement using laser;

fig. 4 is an exploded view of a holder and a connection plate of a device for measuring micro-displacement using laser.

In the figure: 1. a measuring device; 11. a CCD camera; 12. a laser transmitter; 2. a fixed seat; 21. a base plate; 22. connecting columns; 23. an arc-shaped plate; 24. a fixing ring; 25. a first connecting rod; 26. a connecting spring; 27. a second connecting rod; 28. a limiting column; 29. a limiting block; 201. a card slot; 3. a connecting plate; 31. connecting a screw rod; 32. mounting holes; 33. and adjusting the screw cap.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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.

Referring to fig. 1-2, the present invention provides a technical solution of a device for measuring micro-displacement by using laser: the utility model provides an utilize laser to carry out micro displacement measuring device, including measuring equipment 1, measuring equipment 1's lower extreme is connected with fixing base 2, fixing base 2's both sides all are connected with connecting plate 3, fixing base 2 includes bottom plate 21, the upper surface of bottom plate 21 is connected with spliced pole 22, draw-in groove 201 has been seted up to the upper surface of bottom plate 21, the inboard of draw-in groove 201 is pegged graft and is had arc 23, one side of measuring equipment 1 is provided with laser emitter 12, be provided with CCD camera 11 in laser emitter 12's below, laser emitter 12 and CCD camera 11 all are connected with measuring equipment 1's input.

As shown in fig. 3, the surface of two connecting plates 3 all is connected with three connecting screw 31, the connecting screw 31 of both sides all corresponds set up threaded hole with the both sides surface of bottom plate 21, the external screw thread of connecting screw 31 surface and the internal thread phase-match of bottom plate 21 both sides screw hole, two mounting holes 32 have all been seted up on the surface of two connecting plates 3, connecting screw 31's surface just is located and all is connected with adjusting nut 33 between connecting plate 3 and the bottom plate 21, adjusting nut 33's internal thread is opposite with connecting screw 31's external screw thread, connecting plate 3 through both sides, the cooperation of connecting screw 31 and adjusting nut 33 can make measuring equipment 1 install on not unidimensional mount.

As shown in fig. 4, the outer surface of the connecting column 22 is connected with a fixing ring 24, the outer surface of the fixing ring 24 is connected with a first connecting rod 25, one end of the first connecting rod 25 is provided with a telescopic groove, the inside of the telescopic groove is connected with a connecting spring 26, one end of the connecting spring 26 is connected with a second connecting rod 27, the second connecting rod 27 is slidably connected with the inner side of the telescopic groove, one end of the second connecting rod 27 is connected with a limiting column 28, the inner side wall of the arc-shaped plate 23 is equidistantly connected with a plurality of limiting blocks 29, a limiting groove is formed between every two limiting blocks 29, the inner diameter of each limiting groove is matched with the outer diameter of the limiting column 28, the connecting column 22 is rotatably connected with the upper surface of the bottom plate 21, the upper surface of the bottom plate 21 is connected with the lower surface of the measuring device 1, the outer diameter of the arc-shaped plate 23 is matched with the inner diameter of the clamping groove 201, and the positions of the limiting columns 28 between different limiting blocks 29 are adjusted, the measuring device 1 can be driven by the first connecting rod 25 and the second connecting rod 27 to adjust the measuring angle of the measuring device 1.

The utility model discloses a theory of operation: when the device is used, the adjusting screw caps 33 on the outer surfaces of the connecting screw rods 31 on the two sides are loosened, the positions of the connecting screw rods 31 in the threaded holes on the two sides of the bottom plate 21 are adjusted according to the size of the fixing support, after the adjustment is finished, the adjusting screw caps 33 are rotated along the connecting screw rods 31 and are attached to the connecting plate 3, finally, the connecting screw rods and the mounting holes 32 are fixed, after the fixation is finished, the position and the angle of the measuring device 1 can be stabilized, then, the measuring device 1 is started to be aligned to an object to be measured, the object to be measured is placed on a movable table, the measuring device 1 can conveniently detect the object, further, laser emitted by the laser emitter 12 is irradiated on the object to be measured, laser points irradiated on the surface of the object to be measured obtain images through the CCD camera 11 and then are transmitted to the measuring device 1, when the object to be measured is moved, the limiting columns 28 can be pushed outwards along the space between the two limiting blocks 29, connect in the second connecting rod 27 compression connecting spring 26 of spacing post 28, rotate along arc 23 according to angle of regulation again, after rotating to suitable position, go into two corresponding stopper 29 with spacing post 28 card, connecting spring 26 of the inboard of head rod 25 outwards pushes out second connecting rod 27, and make spacing post 28 and two stopper 29 block, can follow laser emitter 12 and CCD camera 11 and carry out the rotation angle along with the testee, make the laser that laser emitter 12 sent continue to shine on the surface of testee, carry out the secondary measurement through measuring equipment 1 to the testee again, thereby can realize that measuring equipment 1 moves and transfers despite the testee, ensure measuring accuracy.

Claims

1. A device for measuring micro displacement by using laser comprises a measuring device (1), and is characterized in that the lower end of the measuring device (1) is connected with a fixed seat (2), and two sides of the fixed seat (2) are connected with connecting plates (3);

the fixing seat (2) comprises a bottom plate (21), the upper surface of the bottom plate (21) is connected with a connecting column (22), a clamping groove (201) is formed in the upper surface of the bottom plate (21), an arc-shaped plate (23) is inserted into the inner side of the clamping groove (201), the outer surface of the connecting column (22) is connected with a fixing ring (24), and the outer surface of the fixing ring (24) is connected with a first connecting rod (25).

2. The device for measuring micro-displacement by using laser according to claim 1, wherein three connecting screws (31) are connected to the surfaces of the two connecting plates (3), the connecting screws (31) on both sides are correspondingly provided with threaded holes on the surfaces of both sides of the bottom plate (21), and the connecting screws (31) are in threaded connection with the threaded holes.

3. The device for measuring the micro-displacement by using the laser as claimed in claim 1, wherein a laser emitter (12) is arranged at one side of the measuring device (1), a CCD camera (11) is arranged below the laser emitter (12), and the laser emitter (12) and the CCD camera (11) are both connected with the input end of the measuring device (1).

4. The device for measuring micro-displacement by using laser according to claim 1, wherein a telescopic slot is opened at one end of the first connecting rod (25), a connecting spring (26) is connected inside the telescopic slot, a second connecting rod (27) is connected at one end of the connecting spring (26), and the second connecting rod (27) is slidably connected inside the telescopic slot.

5. The device for measuring the micro-displacement by using the laser according to claim 4, wherein one end of the second connecting rod (27) is connected with a limiting column (28), the inner side wall of the arc-shaped plate (23) is connected with a plurality of limiting blocks (29) at equal intervals, a limiting groove is formed between every two limiting blocks (29), and the inner diameter of each limiting groove is matched with the outer diameter of the limiting column (28).

6. The device for measuring the micro-displacement by using the laser as claimed in claim 2, wherein two mounting holes (32) are formed in the surfaces of the two connecting plates (3), adjusting nuts (33) are connected to the outer surfaces of the connecting screws (31) and between the connecting plates (3) and the bottom plate (21), and the internal threads of the adjusting nuts (33) are opposite to the external threads of the connecting screws (31).

7. The device for measuring the micro-displacement by using the laser is characterized in that the connecting column (22) is rotatably connected to the upper surface of the bottom plate (21), the upper surface of the bottom plate (21) is connected with the lower surface of the measuring device (1), and the outer diameter of the arc-shaped plate (23) is matched with the inner diameter of the clamping groove (201).