1. A plane mirror fine adjustment device, comprising:

the plane connecting rod mechanism comprises two universal connectors arranged at intervals, each universal connector comprises a connector and a connecting rod, the connector is movably connected with one end of the connecting rod, and the other end of the connector is connected with the plane mirror;

the backlash eliminating mechanism comprises a stabilizer plate assembly and a transmission rod, wherein two ends of the stabilizer plate assembly are respectively movably connected with the other end of the connecting rod, and one end of the transmission rod is rotatably connected with the stabilizer plate assembly;

the output end of the transmission mechanism is movably connected with the other end of the transmission rod; and

and the driving plate is connected with the input end of the transmission mechanism.

2. The mirror trimming apparatus according to claim 1, wherein: the stabilizer disc subassembly includes stabilizer disc, elastic component and limiting plate, the limiting plate with the transfer line is connected, the limiting plate sets up in the stabilizer disc, the elastic component is installed in the stabilizer disc, elastic component one end with the limiting plate links to each other.

3. The mirror trimming apparatus according to claim 2, wherein: the stabilizer disc includes the circular shape disk body, be provided with in the disk body with the mounting hole of disk body coaxial line, the lateral wall of mounting hole with connect through a connecting plate between the inside wall of disk body, the lateral wall of mounting hole with be formed with the slot between the inside wall of disk body, the elastic component sets up in the slot, the limiting plate is installed in the mounting hole.

4. The mirror trimming apparatus according to claim 3, wherein: the lateral wall of mounting hole is provided with an opening that runs through the lateral wall top, the limiting plate includes spacing section of thick bamboo and baffle, the baffle sets up week side of spacing section of thick bamboo, spacing section of thick bamboo is installed in the mounting hole, the baffle is followed the opening stretches out to the ditch inslot and with the elastic component is connected.

5. The mirror trimming apparatus according to claim 4, wherein: the elastic piece is a limiting spring, two ends of the limiting spring are fixed through the connecting plate, and the baffle extends out of the opening and is embedded into the limiting spring.

6. The mirror trimming apparatus according to any one of claims 1 to 5, wherein: the stabilizer plate assembly further comprises rib plates, the rib plates are symmetrically arranged on two sides of the stabilizer plate, shaft holes are formed in two ends, far away from the stabilizer plate, of the rib plates, and the connecting rod is rotatably connected with the shaft holes through shaft pieces.

7. The mirror trimming apparatus according to claim 1, wherein: the number of the plane connecting rod mechanisms, the backlash eliminating mechanism, the transmission mechanism and the drive plate is two, and the two plane connecting rod mechanisms are arranged perpendicular to each other.

8. The mirror trimming apparatus according to claim 1, wherein: the plane mirror fine-tuning device further comprises a shell, the plane connecting rod mechanism, the backlash eliminating mechanism and the transmission mechanism are arranged in the shell, the shell comprises a side plate, a base and a cover plate which are detachably connected, and the base is provided with a trapezoidal support.

9. The mirror trimming apparatus according to claim 1, wherein: the drive plate is circumferentially provided with scale marks at equal intervals.

10. The mirror trimming apparatus according to claim 1, wherein: the transmission structure is a gear train transmission device.

Background

With the development of the industrialization of optoelectronic technology, the performance requirements of optical meters are continuously increasing. The accuracy of metrology testing is required to be increasingly high, which requires greater precision in modern optical instruments. The micro-motion device is an essential part of a precise instrument and is also a necessary condition for ensuring the precision system of the device. However, the arrangement of the optical components for the current experiment and the adjustment method thereof still adopt general observation, and a method without quantitative fine tuning often causes larger error of the measurement result.

In order to overcome the defect of quantitative fine tuning, for example, chinese patent publication No. CN210924080U discloses an adjustable mirror for an optical detector, wherein four corners of a fixed base are penetrated with connecting holes connected with an optical instrument, and the device can simply adjust an angle by using an angle adjusting circular table and a positioning plate, but the device cannot achieve quantitative fine tuning of a plane mirror. In addition, many reflecting mirror adjusting devices in the market use screws to adjust angles, four points are arranged at equal intervals on the horizontal axis and the vertical axis respectively, and relative steering of the reflecting mirrors is adjusted by rotating the screws by using a screwdriver. The experiment carried out by adopting the instrument necessarily brings large errors, and the relative rotation angle of the reflecting mirror cannot be quantitatively known. The traditional method has high requirement on the accurate adjustment capacity of experiment operators, is time-consuming and labor-consuming, is not beneficial to the current high-strength experiment problem, and can solve the problems to a certain extent by adopting a more precise micro-motion device.

Disclosure of Invention

The present invention is directed to at least one of the technical problems of the prior art, and provides a plane mirror fine-tuning device.

According to an embodiment of the first aspect of the present invention, there is provided a plane mirror fine adjustment apparatus including: the plane connecting rod mechanism comprises two universal connectors arranged at intervals, each universal connector comprises a connector and a connecting rod, the connector is movably connected with one end of the connecting rod, and the other end of the connector is connected with the plane mirror; the backlash eliminating mechanism comprises a stabilizer plate assembly and a transmission rod, wherein two ends of the stabilizer plate assembly are respectively movably connected with the other end of the connecting rod, one end of the transmission rod is rotatably connected with the stabilizer plate assembly, the output end of the transmission mechanism is movably connected with the other end of the transmission rod, and the driving plate is connected with the input end of the transmission mechanism and the driving plate.

Has the advantages that: the plane mirror fine-tuning device comprises: the plane connecting rod mechanism comprises two universal connectors which are arranged at intervals, each universal connector comprises a connecting head and a connecting rod, the connecting head is movably connected with one end of the connecting rod, and the other end of the connecting head is connected with the plane mirror; the backlash eliminating mechanism comprises a stabilizer plate assembly and a transmission rod, two ends of the stabilizer plate assembly are respectively movably connected with the other end of a connecting rod, one end of the transmission rod is rotatably connected with the stabilizer plate assembly, the output end of the transmission mechanism is movably connected with the other end of the transmission rod, the drive plate is connected with the input end of the transmission mechanism and the drive plate, the drive plate is stirred, the stabilizer plate assembly is transmitted to the stabilizer plate assembly through the transmission mechanism and the transmission rod, the stabilizer plate assembly is transmitted to a plane connecting rod mechanism, fine adjustment of the plane mirror is achieved, the problem that the existing plane mirror cannot be subjected to quantitative fine adjustment is solved, accurate adjustability is achieved, and a complex measuring structure is simplified.

According to the plane mirror fine-adjustment device provided by the embodiment of the first aspect of the invention, the stabilizer plate assembly comprises a stabilizer plate, an elastic element and a limiting plate, the limiting plate is connected with the transmission rod, the limiting plate is arranged in the stabilizer plate, the elastic element is installed in the stabilizer plate, and one end of the elastic element is connected with the limiting plate.

According to the plane mirror fine-tuning device provided by the embodiment of the first aspect of the invention, the stabilizing disc comprises a circular disc body, a mounting hole coaxial with the disc body is formed in the disc body, the outer side wall of the mounting hole is connected with the inner side wall of the disc body through a connecting plate, a groove is formed between the outer side wall of the mounting hole and the inner side wall of the disc body, the elastic part is arranged in the groove, and the limiting plate is mounted in the mounting hole.

According to the plane mirror fine-tuning device in the embodiment of the first aspect of the present invention, the side wall of the mounting hole is provided with an opening penetrating through the top of the side wall, the limiting plate includes a limiting cylinder and a baffle, the baffle is disposed on the periphery of the limiting cylinder, the limiting cylinder is mounted in the mounting hole, and the baffle extends out of the opening into the groove and is connected with the elastic member.

According to the plane mirror fine-tuning device in the embodiment of the first aspect of the present invention, the elastic member is a limiting spring, two ends of the limiting spring are fixed by the connecting plate, and the baffle extends out of the opening and is embedded into the limiting spring.

According to the plane mirror fine-tuning device in the embodiment of the first aspect of the invention, the stabilizing disc assembly further comprises rib plates, the rib plates are symmetrically arranged on two sides of the stabilizing disc, shaft holes are formed in two ends, far away from the stabilizing disc, of the rib plates, and the connecting rod is rotatably connected with the shaft holes through a shaft element.

According to the plane mirror fine-tuning device in the embodiment of the first aspect of the present invention, the number of the plane link mechanisms, the backlash eliminating mechanism, the transmission mechanism, and the driving plate is two, and the two plane link mechanisms are arranged perpendicular to each other.

According to the plane mirror fine-tuning device provided by the embodiment of the first aspect of the invention, the plane link mechanism, the backlash eliminating mechanism and the transmission mechanism are arranged in the shell, the shell comprises a side plate, a base and a cover plate which are detachably connected, and the base is provided with a trapezoidal support.

According to the plane mirror fine adjustment device of the embodiment of the first aspect of the present invention, the dial is circumferentially provided with scale marks at equal intervals.

According to the plane mirror fine adjustment device in the embodiment of the first aspect of the present invention, the transmission structure is a gear train transmission device.

Drawings

The invention is further described below with reference to the accompanying drawings and examples;

FIG. 1 is a schematic cross-sectional view of a mirror trimming apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic view of a planar linkage mechanism and backlash elimination mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic view of a planar linkage mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic view of a backlash elimination mechanism according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a limiting plate according to an embodiment of the invention;

FIG. 6 is a first schematic connection diagram of the planar linkage mechanism, the backlash eliminating mechanism, and the transmission mechanism according to the embodiment of the present invention;

FIG. 7 is a second schematic view of the connection of the planar linkage mechanism, the backlash eliminating mechanism and the transmission mechanism according to the embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 7, a plane mirror fine-tuning device includes: a planar linkage 100, a backlash elimination mechanism 200, a transmission mechanism 300, and a dial 400.

Referring to fig. 2 and 3, in particular, the planar linkage 100 includes two universal connectors 110 disposed at an interval, each universal connector 110 includes a connector 111 and a connecting rod 112, the connector 111 is movably connected to one end of the connecting rod 112, and the other end of the connector 111 is connected to the plane mirror. Wherein, connector 111 includes the sphere head end, and connecting rod 112 includes concave sphere head end and link, and sphere head end and concave sphere head end rotate to be connected, and concave sphere head end can be rotatory round the sphere head end to make connecting rod 112 rotate around connector 111. The joint 111 of the universal connector 110 is glued to the flat mirror.

Referring to fig. 2, 6 and 7, the backlash elimination mechanism 200 includes a stabilizer plate assembly 210 and a transmission rod 220, wherein both ends of the stabilizer plate assembly 210 are movably connected to the other end of the connecting rod 112, respectively, and one end of the transmission rod 220 is rotatably connected to the stabilizer plate assembly 210.

Referring to fig. 2 and 4, in particular, the stabilizer plate assembly 210 includes a stabilizer plate 211, an elastic member 212, and a stopper plate 213, the stopper plate 213 is connected to the driving rod 220, the stopper plate 213 is disposed in the stabilizer plate 211, the elastic member 212 is installed in the stabilizer plate 211, one end of the elastic member 212 is connected to the stopper plate 213, and the connecting rod of the universal connector 110 is connected to both ends of the stabilizer plate 211.

Referring to fig. 2 and 4, the stabilizing disc 211 includes a circular disc 2111, a mounting hole 2112 coaxial with the disc 2111 is provided in the disc 2111, an outer sidewall of the mounting hole 2112 is connected to an inner sidewall of the disc through a connection plate, a groove is formed between the outer sidewall of the mounting hole 2112 and the inner sidewall of the disc 2111, the elastic member 212 is disposed in the groove, and the stopper plate 213 is mounted in the mounting hole 2112.

The inner diameter of the mounting hole 2112 of the stabilizing disc 211 is in interference fit with the bearing of the transmission rod 220, and the limit plate 213 is mounted in the mounting hole 2112. The side wall of the mounting hole 2112 is provided with an opening penetrating through the top of the side wall, the limiting plate 213 comprises a limiting cylinder and a baffle plate, the baffle plate is arranged on the periphery of the limiting cylinder, the limiting cylinder is mounted in the mounting hole 2112, and the baffle plate extends out of the opening to the groove and is connected with the elastic element 212. The machining diameter of the limiting cylinder of the limiting plate 213 is slightly smaller than the design value, so that the limiting cylinder can freely rotate in the installation hole 2112 of the stabilizing disc 211, an inner hole of the limiting cylinder is in interference fit with the transmission rod 220, the transmission rod 220 can synchronously rotate along with the rotation of the limiting cylinder, a baffle extends out of the outer wall of the limiting cylinder to the groove, and the restoring force of the elastic element 212 is transmitted to the transmission rod 220.

The limiting plate 213 and the transmission rod 220 are connected in an interference fit mode to enable the limiting plate and the transmission rod 220 to rotate together, a baffle with a special structure is arranged on the limiting cylinder, the baffle is in contact with one end of a spring which is bent to be in an arc shape, the other end of the spring is in contact with a connecting plate to transmit the motion of the transmission rod 220 to the stabilizing disc 211, and meanwhile, the spring has restoring force to buffer violent shaking caused by complex terrain change, and the restoring force of the spring pushes the limiting plate to eliminate idle running.

The elastic part 212 is a limiting spring, two ends of the limiting spring are fixed through a connecting plate, and the baffle extends out of the opening and is embedded into the limiting spring. The limiting spring can adopt a cylindrical spiral spring-cold-rolled compression spring with a circular section, the code is YI, two ends of the limiting spring are wound and are tightly ground, a carbon spring steel wire made of the material is selected, the code is 65Mn, the middle diameter is 3.5mm, and the outer diameter is 4mm according to GB/T4357.

When the transmission rod 220 rotates, the motion of the transmission rod 220 is transmitted to the rotation of the stabilizer plate 211 through the transmission sequence of the limiting plate-spring-stabilizer plate, and the spring has restoring force, so that when the backlash is generated in the gear train, the restoring force of the spring pushes the baffle to eliminate the backlash.

The stabilizer plate assembly 210 further comprises rib plates 214, the rib plates 214 are symmetrically arranged on two sides of the stabilizer plate 211, shaft holes are formed in two ends, far away from the stabilizer plate 211, of the rib plates 214, and the connecting rod 112 is rotatably connected with the shaft holes through shaft pieces.

Wherein, the output end of the transmission mechanism 300 is movably connected with the other end of the transmission rod 220. The input end of the dial 400 and the transmission mechanism 300 is connected to the dial 400. In some of these embodiments, the transmission structure 300 is a gear train transmission. The gear transmission system transmission device can be arranged in the gear box, so that the gear is convenient to install and disassemble.

The device can be divided into a fine tuning system rotating around an X axis and a fine tuning system rotating around a Y axis from the fine tuning direction. Therefore, the number of the planar link mechanisms 100, the backlash elimination mechanism 200, the transmission mechanism 300, and the dial 400 is two, and the two planar link mechanisms 100 are arranged perpendicular to each other. This allows fine tuning of the mirrors in both the X and Y directions.

The plane mirror fine-tuning device further comprises a shell 500, the plane connecting rod mechanism 100, the backlash eliminating mechanism 200 and the transmission mechanism 300 are arranged in the shell 500, the shell 500 comprises a side plate, a base and a cover plate which are detachably connected, the base is provided with a trapezoidal support, the bottom surface which is in contact with the ground is respectively glued with two rubber strips, the friction coefficient of the shell and the table top can be increased by adopting the design, the deviation or the sliding of the device is effectively prevented, and the stability of the device is enhanced.

Referring to fig. 1, in which the dial 400 is circumferentially provided with scale lines at equal intervals. The plane link mechanism 100 is connected with the two equidistant ends of the axis of the plane mirror, the transmission rod 220 and the stabilizing disc 211 rotate together, the stabilizing disc 211 and the transmission mechanism 300 rotate coaxially, when an operator dials the dial 400 by hand, the dial is transmitted to the plane link mechanism 100 through the stabilizing disc 211 through the transmission mechanism 300, and the plane link mechanism 100 is transmitted to the plane mirror, so that the micro-angle adjustment of the plane mirror is realized.

A frame is arranged in the housing 500, the frame may be a support rod, the frame is used to limit the degree of freedom of some moving parts, and the frame and the housing are connected by gluing. The dial 400 is marked by scale lines to realize number display. 1 line is carved at every 1 degree of the circle center on the dial 400, 360 scribed lines are divided in total, and each 5 scribed lines are marked with numbers once. The central position of the dial hole can be provided with a reading line, and the scale of the dial turned to the reading line is the number.

When stabilizer disc 211 rotates, transmit the motion to connecting rod 112 through the hinge for connecting rod 112 is at its planar internal linear motion to transmit the level crossing through the connector, make the level crossing do with stabilizer disc 211 turned angle the same rotation around X or Y axle, thereby realize the fine setting of level crossing. In the hinge connecting the connecting rod 112 and the stabilizing disc 211, a smaller damping design is adopted, so that the resistance force of the hinge can just offset the restoring force generated by the backlash eliminating mechanism 200, and the restoring force is prevented from pushing the connecting rod 112 to rotate.

This level crossing micromatic setting divide into plane link mechanism, gear, sky and returns elimination mechanism, casing, frame, can independently assemble when the assembly, suitably shortens the assembly cycle of instrument, simultaneously with the casing design for can dismantle the panel, with all panels and frame complex parts and mechanism installation back of finishing, make up again, the assembly of being convenient for. By adopting the structure, the device has the advantages of higher transmission precision, compact structure, space saving, no gear backlash error, convenient operation, clear and readable indication, can be used for accurately, slightly and quantitatively adjusting the plane mirror, eliminating backlash error, solving the problem that the prior device cannot quantitatively and slightly adjust, not only realizing accurate adjustability, but also simplifying a complex measurement structure, and having practical significance and good application prospect.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.