CN113721342A

CN113721342A - Eccentric adjusting device

Info

Publication number: CN113721342A
Application number: CN202111072900.3A
Authority: CN
Inventors: 梁柱强
Original assignee: Guangzhou Chenda Precision Photoelectric Technology Co ltd
Current assignee: Guangzhou Chenda Precision Photoelectric Technology Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2021-11-30

Abstract

The invention discloses an eccentric adjusting device which comprises a bearing device, a moving device, an eccentric adjusting assembly, a lens module and a base, wherein the moving device is arranged on the base, the bearing device is arranged above one end of the base, the eccentric adjusting assembly is arranged around the bearing device, the eccentric adjusting assembly is fixed with the base, and the lens module is fixed on the moving device. The eccentric adjusting component arranged in the device ensures that the follow-up property of the adjusted aspheric lens is good, the adjusting precision is high, the efficiency is high, and the lens cannot float due to downward pressing force on the adjusted aspheric lens. The defects that the processing requirement of the existing eccentric center-adjusting technology (a clamping sleeve with the same shape as the lens clamps the lens, and then the position of the aspheric lens of the adjusted group is adjusted by the XY axis of the sliding platform) on the adjusting clamping sleeve is higher, the follow-up performance of the movement of the adjusted aspheric lens is poorer, the adjusting time is longer, and the adjusted aspheric lens is easy to float are overcome.

Description

Eccentric adjusting device

Technical Field

The invention relates to the field of optical adjustment, in particular to an eccentric adjusting device.

Background

In the optical industry, the lens is an indispensable part, has relatively excellent optical properties, light transmittance and mechanochemical properties, and has constant refractive index and stable physical and chemical properties. However, in the optical system, optical axis deviation inevitably occurs in each lens, and eccentricity of the aspherical lens in the optical system has the greatest influence on the imaging quality, so that the contrast of the whole optical system is reduced, the resolution is deteriorated, the definition is deteriorated, and even the optical system is out of order. To improve the imaging quality of the optical system, the optical decentration adjustment is usually performed on the sensitive aspheric lens.

The existing eccentric center-adjusting technology is that a clamping sleeve with the same shape as a lens clamps the lens, and then the position of the aspheric lens is adjusted by the XY axis of the sliding platform, so that the machining requirement on the adjusting clamping sleeve is higher, the machining difficulty is increased, and the adjusted aspheric lens is easy to float.

Disclosure of Invention

The invention aims to provide an eccentric adjusting device to solve the problems that in the prior art, a cutting sleeve with the same shape as a lens is used for clamping the lens, and then the position of an aspheric lens is adjusted by a sliding platform XY axis, so that the processing requirement on the adjusting cutting sleeve is high, and the adjusted aspheric lens is easy to float.

In order to achieve the above object, the present invention provides an eccentric adjusting device, which includes a bearing device, a moving device, an eccentric adjusting assembly, a lens module, and a base, wherein the moving device is disposed on the base, the bearing device is disposed above one end of the base, a plurality of eccentric adjusting assemblies are disposed around the bearing device, the eccentric adjusting assemblies are connected to the base, and the lens module is fixed on the moving device.

Preferably, the moving device includes a moving cylinder, a connecting plate, a moving block, and a guide rail, the guide rail is fixed on the base, one end of the moving cylinder is fixed on the base, the other end of the moving cylinder is connected with the connecting plate, the connecting plate is fixed with the moving block, and the moving block is slidably connected to the guide rail.

Preferably, the mobile device further comprises a lens fixing plate;

the upper part of the moving block is fixed with one end of the lens fixing plate, and the other end of the lens fixing plate is provided with the lens module.

Preferably, the eccentric adjustment assembly comprises a spiral differential ruler, an eccentric adjustment thimble and a thimble moving cylinder, the thimble moving cylinder is arranged on the base, the output end of the thimble moving cylinder is connected with the spiral differential ruler and the eccentric adjustment thimble, and the extending end of the spiral differential ruler is connected with or in contact with one end of the eccentric adjustment thimble.

Preferably, a measuring switch and a moving switch are arranged on the base, the moving switch is electrically connected with the moving cylinder, and the measuring switch is used for controlling the starting and stopping of the eccentric adjusting assembly.

Preferably, an auxiliary stabilizing device is arranged between the base and the moving block, and the auxiliary stabilizing device is fixed on the base and connected with the moving block.

Preferably, the auxiliary stabilizing device includes:

the device comprises a shell, a power part, a steel cable, a stabilizing plate and a first connecting rod;

the shell is fixed on the base, the stabilizing plate is arranged in the shell, the power parts are fixed on the inner surface of the shell and are respectively arranged on two sides of the stabilizing plate, and the stabilizing plate is connected with the power parts through the steel cable;

one side of the stabilizing plate is fixed with one end of the first connecting rod, and the other end of the first connecting rod is fixed to the moving block.

Preferably, the power member includes:

the device comprises a fixed base, a rotating shaft, a first friction piece, a second friction piece, a wire wheel, a fixed rod, a narrow end of the rotating shaft, a first spring, a mounting plate and an electromagnet;

the fixed base is fixed on the inner surface of the shell, the fixed base is of an annular structure, the rotating shaft is rotatably connected in the fixed base, the first friction piece is fixed on the fixed base, and the first friction piece is of an annular structure with the same inner diameter as the fixed base;

the upper end of the rotating shaft is a rotating shaft narrowing end, and the setting height of the rotating shaft narrowing end is higher than the position of the first friction piece;

the narrowing end of the rotating shaft is connected with the mounting plate in a sliding manner, the fixing rod is fixed on the mounting plate, the first friction piece is arranged on the mounting plate and penetrates through the first friction piece, the wire wheel is arranged above the connecting position of the first friction piece and the fixing rod, the fixing rod extends into the wire wheel to fix the position of the wire wheel relative to the mounting plate, and the wire wheel is connected with one end of the steel cable;

the lower surface of the placing plate is fixed at one end of the first spring, the other end of the first spring is fixed at the lower end of the rotating shaft or the inner wall of the lower end of the fixed base, and the first spring is sleeved on the rotating shaft;

the electromagnet is arranged between the first spring and the rotating shaft and used for attracting the placement plate made of magnetic materials, the lower end of the electromagnet is fixed on the fixed base, and the electromagnet is electrically connected with the movable switch.

Preferably, a lens protection device is disposed on the lens fixing plate, and the lens protection device includes:

the device comprises a fixed vertical plate, a linear motor, a second connecting rod, a first moving plate, a first steel bar, a second steel bar, a first sliding groove, a pulley, a limiting fixed plate, a fixed bolt, a limiting rod, a limiting pulley, a second moving plate, a second sliding groove, a connecting rod, a first placing plate, a reinforcing fixed plate, a second placing plate, a hinged shaft, a first connecting bulge, a second connecting bulge, a third placing plate, a second spring, a contact plate, a third spring and a protective cover;

the two fixed vertical plates are fixed on two sides of the upper surface of the lens fixing plate, a first steel bar and a second steel bar are fixed in opposite sides of the fixed vertical plates, the second steel bar is positioned above the first steel bar, and a first sliding groove is formed between the first steel bar and the second steel bar;

the limiting fixing plate is arranged on the inner side of the fixed vertical plate, the limiting fixing plate is connected with the fixed vertical plate through the fixing bolt, the limiting fixing plate is fixed with one end of the limiting rod, and the limiting pulley is arranged at the other end of the limiting rod;

the connecting rod is arranged between the two fixed vertical plates, the pulleys are arranged at two ends of the connecting rod, and the pulleys are connected with the first sliding groove in a sliding mode;

the linear motor is fixed on the lens fixing plate and positioned between the two fixing vertical plates, the output end of the linear motor is fixed with one end of the second connecting rod, and the other end of the second connecting rod is fixed in the middle of the connecting rod;

two second moving plates are connected to two ends of the connecting rod respectively and are located on the inner sides of the pulleys, and second sliding grooves are formed in the second moving plates;

the two second moving plates are fixed with the first moving plate, the first placing plate is vertically arranged on the first moving plate, and the first placing plate and the first moving plate are fixed through the reinforcing fixing plate;

one side of the first mounting plate is fixed with one side of the second mounting plate, the other side of the second mounting plate is fixed with the first connecting bulge, the right side of the second mounting plate is provided with the third mounting plate, the left side of the third mounting plate is fixed with the second connecting bulge, the first connecting bulge is connected with the second connecting bulge through the hinge shaft, and the edges of the second mounting plate and the third mounting plate are provided with the second spring for connection;

the third place board right side is fixed with the safety cover, third place board right side edge with third spring one end is connected, the third spring other end connect in the contact plate, the contact plate middle part be provided with the through-hole that the safety cover diameter is the same, safety cover right-hand member sliding connection with in the through-hole at contact plate middle part.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a schematic top view of the main structure of the present invention;

FIG. 3 is a schematic view of the installation position of the auxiliary stabilizer and the lens protector according to the present invention;

FIG. 4 is a schematic top view of the auxiliary stabilizer of the present invention;

FIG. 5 is a schematic structural view of a power member of the auxiliary stabilizing device of the present invention;

FIG. 6 is a schematic view of the internal structure of the power unit of the auxiliary stabilizer of the present invention;

FIG. 7 is a schematic front view of a power unit of the auxiliary stabilizer of the present invention;

FIG. 8 is a schematic top view of a lens protection apparatus according to the present invention;

FIG. 9 is a schematic view of a partial connection structure of a lens protection apparatus according to the present invention;

fig. 10 is a left side view schematically illustrating a protective cover connecting structure of the lens protection apparatus according to the present invention.

In the figure: 1. a bearing device; 2. a mobile device; 3. an eccentric adjustment assembly; 4. a measurement switch; 5. a moving switch; 6. a lens module; 7. a base; 8. a limiting device; 21. a moving cylinder; 22. a connecting plate; 23. a lens fixing plate; 24. a moving block; 25. a guide rail; 31. a spiral differential ruler; 32. an eccentric adjusting thimble; 33. a thimble moving cylinder; 34. a slide bar; 35. a fixed block; 36. mounting a plate; 100. an auxiliary stabilizing device; 101. a housing; 102. a power member; 103. a steel cord; 104. a stabilizing plate; 105. a first connecting rod; 1021. a fixed base; 1022. a rotating shaft; 1023. a first friction member; 1024. a second friction member; 1025. a wire wheel; 1026. fixing the rod; 1027. a narrowed end of the shaft; 1028. a first spring; 1029. placing a plate; 1030. an electromagnet; 200. a lens protection device; 201. fixing a vertical plate; 202. a linear motor; 203. a second connecting rod; 204. a first moving plate; 205. a first steel strip; 206. a second steel strip; 207. a first chute; 208. a pulley; 209. a limiting fixing plate; 210. fixing the bolt; 211. a limiting rod; 212. a limiting pulley; 213. a second moving plate; 214. a second chute; 215. a connecting rod; 216. a first installation plate; 217. reinforcing the fixed plate; 218. a second mounting plate; 219. hinging a shaft; 220. a first connecting projection; 221. a second connecting projection; 222. a third installation plate; 223. a second spring; 224. a contact plate; 225. a third spring; 226. a protective cover.

Detailed Description

The description of the present invention as to "first", "second", etc. is for descriptive purposes only, and not for purposes of particular ordinal or sequential meaning, nor for limitations, and is intended to distinguish between components or operations that are described in the same technical language, and is not intended to indicate or imply relative importance or imply the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.

Example 1

Referring to fig. 1-2, an embodiment of the present invention is shown: the utility model provides an eccentric adjusting device, is including holding by device 1, mobile device 2, eccentric adjusting part 3, camera lens module 6, base 7, mobile device 2 set up in on the base 7, hold and lean on device 1 to be fixed in base 7 one end top, just hold and be provided with around device 1 eccentric adjusting part 3, just eccentric adjusting part 3 with base 7 is fixed, camera lens module 6 is fixed in on the mobile device 2.

Preferably, an infrared sensor and a vacuum device are arranged in the bearing device 1, the infrared sensor is used for sensing the group to be adjusted, when the infrared sensor senses that the group to be adjusted is placed in the bearing device of the group to be adjusted, the vacuum device is started, and the group to be adjusted is fixed through negative pressure (specifically, the specific vacuum device can refer to the existing negative pressure fixing device for positioning).

Preferably, the moving device 2 includes a moving cylinder 21, a connecting plate 22, a moving block 24, and a guide rail 25, the guide rail 25 is fixed on the base 7, one end of the moving cylinder 21 is fixed on the base 7, the other end is connected to the connecting plate 22, the connecting plate 22 is fixed to the moving block 24, and the moving block 24 is slidably connected to the guide rail 25.

Preferably, the mobile device 2 further comprises a lens fixing plate 23;

the upper part of the moving block 24 is fixed to one end of the lens fixing plate 23, and the other end of the lens fixing plate 23 is provided with the lens module 6.

Preferably, the moving device 2 can be moved to a designated optical position by a high-precision cylinder and a high-precision guide rail, and can also be moved to a designated optical position by a high-precision servo motor and a high-precision guide rail.

Preferably, the eccentric adjustment assembly 3 includes a spiral micrometer 31, an eccentric adjustment thimble 32, and a thimble moving cylinder 33, the thimble moving cylinder 33 is disposed on the base 7, an output end of the thimble moving cylinder 33 is fixed to the spiral micrometer 31 and the eccentric adjustment thimble 32 (specifically, an output end of the thimble moving cylinder 33 is fixed to a mounting plate 36, the spiral micrometer 31 is fixed to the mounting plate 36, the eccentric adjustment thimble 32 is slidably connected to the mounting plate 36), and an extending end of the spiral micrometer 31 is connected or contacted with one end of the eccentric adjustment thimble 32 (1. specifically, the extending end of the spiral micrometer 31 is connected to the eccentric adjustment thimble 32 through a link rod; 2. referring to fig. 2, a fixing block 35 is disposed on the mounting plate 36, a through hole is disposed on the fixing block 35, and a sliding rod 34 is fixedly connected to one end of the thimble, the sliding rod 34 is connected in the through hole in a sliding manner, the output end of the spiral differential ruler can extend into the through hole and is used for pushing the sliding rod (at the moment, the output end of the spiral differential ruler is in contact with the sliding rod 34), the sliding rod 34 is sleeved with a spring, and two ends of the spring are respectively fixedly connected with the thimble and the fixed block 35.

The spiral differential ruler 31 adopts a spiral pair principle to change the rotation motion of the screw rod into linear displacement, and the linear displacement of the rotation motion of the screw rod is far larger than the moving distance of the extension end of the spiral differential ruler in the axial lead direction, so that the speed and displacement control of the extension end of the spiral differential ruler are more accurate, the moving distance of the extension end of the spiral differential ruler in the axial lead direction is in direct proportion to the rotation angle of the screw rod, and the relation between the moving distance of the extension end of the spiral differential ruler in the axial lead direction and the rotation angle of the screw rod is as follows:

wherein L is the moving distance of the extending end of the spiral micrometer in the axial lead direction, P is the screw pitch of the screw,

is the angle of rotation of the screw. (specifically, the spiral differential ruler can refer to the existing micrometer screw used for distance measurement and including displacement function, the extending end/moving end of the spiral differential ruler in the invention is equal to the micrometer screw in the existing micrometer screw, and also can refer to CN 112986776B as micrometer head)

Preferably, the spiral differential ruler 31 is a high-precision spiral differential ruler which is manually adjusted, and the other is an automatic adjustment of a precision servo motor, namely, the high-precision servo motor and a precision guide rail are used for realizing the forward and backward movement so as to achieve the purpose of automatic feeding and discharging.

Preferably, the base 7 is provided with a measuring switch 4 and a moving switch 5, the moving switch 5 is electrically connected with the moving cylinder 21, and the measuring switch 4 is used for controlling the on-off of the eccentric adjusting assembly 3.

The working principle and the beneficial effects of the technical scheme are as follows: after the group to be adjusted is put into the bearing device 1 for fixing, the eccentric adjusting component 3 is started, the thimble moving cylinder 33 of the eccentric adjusting component 3 drives a plurality of eccentric adjusting thimbles 32 to be automatically driven into the lens adjusted in the eccentric adjusting group, when the eccentric adjusting thimbles 32 are in place, the moving switch 5 is pressed, the moving device 2 is started, the metal group (the general name of various parts arranged on the moving device 2, including the lens module 6) is driven by the moving cylinder 21 to move to a specified position along the guide rail 25, after the metal group reaches the specified position, the tail ends of a plurality of spiral differential rulers 31 fixed on the thimble moving cylinder 33 (on a fixed mounting plate 36) in the eccentric adjusting component 3 extend out different lengths, the eccentric adjusting thimbles 32 are controlled to slide on the mounting plate 36 to act on the edge part of the aspheric lens, so that the aspheric lens generates different feeding amounts around the fixed position according to the spiral differential rulers 31 of the eccentric adjusting thimbles 32 The eccentricity effect is used for adjusting the aspheric lenses in the adjusted group and changing the positions of the aspheric lenses in the whole optical system, so that the eccentricity of the whole optical system is complemented, and the imaging quality of the optical system is improved.

The eccentric adjusting component 3 arranged in the device ensures that the follow-up property of the aspheric lens to be adjusted is good (the bearing device 1 is provided with a plurality of eccentric adjusting components to realize multidirectional adjustment, and the adjustment is convenient through the matching of the moving cylinder 21, the spiral differential ruler and the thimble 32. compared with the prior sliding platform XY axis to adjust the position of the aspheric lens, the follow-up property of the aspheric lens to be adjusted is good), the adjustment precision and the efficiency are high, and downward pressure force is applied to the aspheric lens to be adjusted (the relative vacuum between the vacuum device and the aspheric lens is generated by the vacuum device, and the aspheric lens is fixed on the vacuum device because the pressure intensity of the relative vacuum between the vacuum device and the aspheric lens is less than the atmospheric pressure intensity), so the aspheric lens cannot float.

The defects that the processing requirement of the existing eccentric center-adjusting technology (a clamping sleeve with the same shape as the lens clamps the lens, and then the position of the aspheric lens of the adjusted group is adjusted by the XY axis of the sliding platform) on the adjusting clamping sleeve is higher, the follow-up performance of the movement of the adjusted aspheric lens is poorer, the adjusting time is longer, and the adjusted aspheric lens is easy to float are overcome.

The invention utilizes the negative pressure device to fix the position of the adjusted group, thereby effectively preventing the position change during the eccentric adjustment.

The device has the advantages of simple structure, low processing cost, simple operation and easy maintenance.

Example 2

Referring to fig. 3-4, in the embodiment 1, an auxiliary stabilizing device 100 is disposed between the base 7 and the moving block 24, and the auxiliary stabilizing device 100 is fixed on the base 7 and connected to the moving block 24.

Preferably, the auxiliary stabilizing device 100 includes:

a shell 101, a power piece 102, a steel cable 103, a stabilizing plate 104 and a first connecting rod 105;

the outer shell 101 is fixed on the base 7, the stabilizing plate 104 is arranged in the outer shell 101, the plurality of power members 102 are fixed on the inner surface of the outer shell 101 and are respectively arranged on two sides of the stabilizing plate 104, and the stabilizing plate 104 is connected with the power members 102 through the steel cable 103;

one side of the stabilizing plate 104 is fixed to one end of the first connecting rod 105, and the other end of the first connecting rod 105 is fixed to the moving block 24.

Preferably, the power member 102 includes:

the device comprises a fixed base 1021, a rotating shaft 1022, a first friction piece 1023, a second friction piece 1024, a reel 1025, a fixed rod 1026, a rotating shaft narrowing end 1027, a first spring 1028, a setting plate 1029 and an electromagnet 1030;

the fixed base 1021 is fixed on the inner surface of the casing 101, the fixed base 1021 is a ring structure, the rotating shaft 1022 is connected in the fixed base 1021, the first friction piece 1023 is fixed on the fixed base 1021, and the first friction piece 1023 is a ring structure with the same inner diameter as the fixed base 1021;

the upper end of the rotating shaft 1022 is provided with the rotating shaft narrowed end 1027, and the height of the rotating shaft narrowed end 1027 is higher than the position of the first friction piece 1023;

the connecting position of the rotating shaft 1022 and the narrow end 1027 of the rotating shaft is provided with the mounting plate 1029, the fixing rod 1026 is fixed on the mounting plate 1029, the first friction piece 1023 is arranged on the mounting plate 1029, the fixing rod 1026 penetrates through the first friction piece 1023, the wire wheel 1025 is arranged above the connecting position of the first friction piece 1023 and the fixing rod 1026, and the wire wheel 1025 is connected with one end of the steel cable 103;

the upper surface of the setting plate 1029 is connected to one end of the first spring 1028, the other end of the first spring 1028 is connected to the lower end of the spindle 1022, and the first spring 1028 is sleeved on the spindle 1022;

the electromagnet 1030 is disposed between the first spring 1028 and the rotating shaft 1022, the lower end of the electromagnet 1030 is fixed to the fixed base 1021, and the electromagnet 1030 is electrically connected to the moving switch 5.

The working principle and the beneficial effects of the technical scheme are as follows: an auxiliary stabilizing device 100 is arranged between the base 7 and the moving block 24, so that the stability of the moving block 24 in the moving process can be effectively ensured, the power part 102 in the shell 101 is connected with the steel cable 103, and certain tension is kept on two sides of the stabilizing plate 104, so that the same stable motion trend is kept between the moving block 24 connected with the stabilizing plate 104 through the first connecting rod 105 and the stabilizing plate 104;

the power part 102 is constantly in a stressed state in the moving process of the stabilizing plate 104 through the first spring 1028 fixed on the rotating shaft 1022, and transmits force to the wire wheel 1025 through the setting plate 1029 and the fixing rod 1026 which are connected with the first spring 1028, the steel cable 103 is connected with the wire wheel 1025, so that the steel cable 103 is constantly in a stressed state, the stabilizing plates 104 of which two sides are connected with the steel cable 103 are constantly in a stressed state, and the stressed direction is opposite to the moving direction of the stabilizing plates 104, thereby ensuring the stability of the stabilizing plates 104 in the moving process;

when the moving block 24 stops moving, the electromagnet 1030 is powered on, the magnetic force overcomes the elastic force of the first spring 1028 to suck the setting plate 1029 downwards, so that the setting plate 1029 moves downwards, at the moment, the second friction piece 1024 fixed on the setting plate 1029 is in contact with the first friction piece 1023 fixed on the fixed base 1021, and at the moment, the second friction piece 1024 is subjected to the magnetic force of the electromagnet 1030, so that a large friction coefficient is kept between the first friction piece 1023 and the second friction piece 1024, the static state of the wire wheel 1025 is ensured, and the stability of the moving block 1025 is further ensured;

when the moving block 24 moves, the electromagnet 1030 is powered off, the second friction member 1024 is separated from the first friction member 1023 by the elastic force of the first spring 1028, the static state of the second friction member 1024, the rotating shaft 1022 and the pulley 1025 is released, and the moving block 24 can move along with the moving cylinder 21.

Example 3

Referring to fig. 5 to 7, on the basis of the

above embodiment

1 or 2, a lens protection device 200 is disposed on the lens fixing plate 23, and the lens protection device 200 includes:

a fixed vertical plate 201, a linear motor 202, a second connecting rod 203, a first moving plate 204, a first steel bar 205, a second steel bar 206, a first sliding groove 207, a pulley 208, a limit fixing plate 209, a fixing bolt 210, a limit rod 211, a limit pulley 212, a second moving plate 213, a second sliding groove 214, a connecting rod 215, a first placing plate 216, a reinforcing fixing plate 217, a second placing plate 218, a hinge shaft 219, a first connecting bulge 220, a second connecting bulge 221, a third placing plate 222, a second spring 223, a contact plate 224, a third spring 225 and a protective cover 226;

the two fixed risers 201 are fixed on two sides of the upper surface of the lens fixing plate 23, the first steel bar 205 and the second steel bar 206 are fixed in opposite sides of the fixed risers 201, the second steel bar 206 is located above the first steel bar 205, and the first sliding slot 207 is formed between the first steel bar 205 and the second steel bar 206;

the inner side of the fixed vertical plate 201 is provided with the limiting fixing plate 209, the limiting fixing plate 209 is connected with the fixed vertical plate 201 through the fixing bolt 210, the limiting fixing plate 209 is fixed with one end of the limiting rod 211, and the other end of the limiting rod 211 is provided with the limiting pulley 212;

the connecting rod 215 is arranged between the two fixed risers 201, the pulleys 208 are arranged at two ends of the connecting rod 215, and the pulleys 208 are connected with the first sliding groove 207 in a sliding manner;

the linear motor 202 is fixed on the lens fixing plate 23, the linear motor 202 is located between the two fixing vertical plates 201, the output end of the linear motor 202 is fixed with one end of the second connecting rod 203, and the other end of the second connecting rod 203 is fixed in the middle of the connecting rod 215;

two second moving plates 213 are connected to two ends of the connecting rod 215, the second moving plates 213 are located on the inner side of the pulley 208, and the second moving plates 213 are provided with second sliding grooves 214;

the two second moving plates 213 are both fixed to the first moving plate 204, the first placing plate 216 is vertically arranged on the first moving plate 204, and the first placing plate 216 and the first moving plate 204 are fixed through the reinforcing fixing plate 217;

one side of the first installation plate 216 is fixed to one side of the second installation plate 218, the other side of the second installation plate 218 is fixed to the first connecting protrusion 220, the right side of the second installation plate 218 is provided with the third installation plate 222, the left side of the third installation plate 222 is fixed to the second connecting protrusion 221, the first connecting protrusion 220 is connected to the second connecting protrusion 221 through the hinge shaft 219, and the edges of the second installation plate 218 and the third installation plate 222 are provided with the second spring 223 for connection;

the right side of the third mounting plate 222 is fixed with the protection cover 226, the edge of the right side of the third mounting plate 222 is connected with one end of a third spring 225, the other end of the third spring 225 is connected with the contact plate 224, a through hole with the same diameter as the protection cover 226 is arranged in the middle of the contact plate 224, and the right end of the protection cover 226 is slidably connected with the through hole in the middle of the contact plate 224.

The working principle and the beneficial effects of the technical scheme are as follows: by arranging the lens protection device 200 on the lens fixing plate 23, the safety of the lens module 6 can be ensured when the apparatus is not used, and the lens protection device 200 is opened by itself when the apparatus is used;

the linear motor 202 fixed on the lens fixing plate 23 drives the second connecting rod 203 to move, so that the connecting rod 215 fixed at the other end of the second connecting rod 203 moves, and the pulleys 208 arranged at the two ends of the connecting rod 215 ensure that the connecting rod 215 can only move in the range of a first sliding groove 207 enclosed by the fixed vertical plate 201 fixed on the lens fixing plate 23, the first steel bar 205 and the second steel bar 206;

when the connecting rod 215 moves forward to a certain position, the second sliding grooves 214 on the second moving plates 213 connected to both ends of the connecting rod 215 contact with the limiting rods 211 arranged on the surface of the limiting fixing plate 209 fixed on the fixed vertical plate 201 through the fixing bolts 210, and at this time, the limiting pulleys 212 at the tail ends of the limiting rods 211 slide in the second sliding grooves 214, so that the second moving plates 213 rotate around the connecting rod 215, and the first moving plates 204 fixed on the second moving plates 213 and the first mounting plates 216 fixed to the first moving plates 204 rotate at the same time, so that the protective covers 226 on the lens module 6;

in this process, the contact plate 224 contacts with the lens fixing plate 23 around the lens module 6 first, so that the third spring 225 compresses and stores energy, thereby reducing the impact on the protective cover 226, and the third mounting plate 222 fixed with the fixed protective cover 226 is connected with the second mounting plate 218 through the hinge shaft 219, the first connecting protrusion 220, and the second connecting protrusion 221, and the second spring 223 arranged around the second mounting plate 218 and the third mounting plate 222 can further reduce the impact on the protective cover 226 in this process, thereby effectively protecting the lens module 6.

Example 4

On the basis of the above embodiment 1, the early warning device for the wear state of the guide rail 25 is further included, and the early warning device for the wear state of the guide rail 25 includes:

a temperature sensor provided on the guide rail 25 for detecting a temperature of the guide rail 25;

a speed sensor provided on the moving block 24 for detecting a moving speed of the moving block 24 with respect to the guide rail 25;

a timer for recording a single movement time of moving mass 24;

a counter for recording the number of movements of the moving block 24;

the alarm is positioned on the base 7;

the controller, the controller respectively with temperature sensor, speedtransmitter, time-recorder, counter and alarm electric connection, the controller is based on temperature sensor, speedtransmitter, time-recorder, counter control alarm work includes:

step 1: the controller obtains the wear effect coefficient of the guide rail 25 based on the temperature sensor, the speed sensor, the timer and the formula (1):

wherein,

is the wear effect coefficient of the guide rail 25, d is the width of the guide rail 25, a is the rockwell hardness of the guide rail 25, m is the total weight of the moving block 24 and all components thereon, e is the yield limit under pressure of the guide rail 25, W₁Based on the average temperature of the moving block 24, which is obtained by the temperature sensor, rising relative to the guide rail 25 after a single sliding of the moving block 24 relative to the guide rail 25 (specifically, the temperature is detected once before and after each movement, and a temperature difference of each time is obtained, the average temperature is an average value of all temperature differences), the unit temperature of W, the speed of the moving block 24 relative to the guide rail 25, which is detected by the speed sensor, T is the single movement time of the moving block 24, which is recorded by a timer (when the single movement time is inconsistent, the average value of all times is taken), T is the elastic modulus of the guide rail 25, Q is the poisson's ratio of the guide rail 25, σ is the adhesive wear coefficient between the guide rail 25 and the moving block 24, μ is the average accuracy coefficient of the speed sensor and the timer, g is the gravitational acceleration, and e is a natural constant, and 2.72 is obtained;

step 2: the controller calculates the guide rail 25 wear state index based on the speed sensor, timer, counter and equation (2):

wherein δ is an index of a wear state of the guide rail 25, N is a number of times of movement of the moving block 24 recorded by the counter, and ln is a logarithmic function with a natural constant e as a base;

and when the wear state index of the guide rail 25 exceeds a preset reference value range, the controller controls an alarm to give an alarm.

In the formula,

is shown in theoryThe wear effect coefficient of the base of the guide 25 under conditions,

showing the effect constant of the influence of temperature on the wear effect coefficient of the base of the guide rail 25 when the temperature of the guide rail 25 changes due to friction, (1-e)^-Qμ) The method is characterized in that the obtained abrasion effect coefficient of the guide rail 25 is corrected based on the self property of the guide rail 25, the average precision coefficient of a speed sensor, a timer and the like, the final result, namely the abrasion effect coefficient of the guide rail 25 is obtained, the abrasion effect coefficient of the guide rail 25 is increased along with the increase of the temperature, the abrasion effect coefficient of the guide rail 25 is in a proportional relation with the self weight of a friction object, the self weight of the friction object is increased, the abrasion effect coefficient of the guide rail 25 is increased along with the increase of the self weight of the friction object,

indicating the effect of the number of rubs on the index of the wear state of the guide rail 25,

the wear state index of the guide rail 25 is obtained based on relevant parameters of the guide rail 25, such as self weight, friction area, compressive yield limit and elastic modulus of a friction object, the wear effect coefficient of the guide rail 25 and the moving frequency of the moving block 24, and the wear state index of the guide rail 25 is positively correlated with the moving frequency of the moving block 24 and the wear effect coefficient of the guide rail 25.

Assuming that the width d of the guide rail 25 is 0.01m, the rockwell hardness a of the guide rail 25 is 26, the total weight m of the moving block 24 and all components thereon is 10kg, the compressive yield limit epsilon of the guide rail 25 is 300MPa, and the temperature sensor detects the temperature of the moving block 24 acquired by the temperature sensor with respect to the guide rail 25 in a single passAn average temperature (specifically, a temperature is detected once before and after each movement to obtain a temperature difference for each time) W of the rise of the guide rail 25 after the sliding is performed₁The unit temperature W is 1 ℃, the speed v of the moving block 24 relative to the guide rail 25 detected by the speed sensor is 0.1m/s, the single movement time (average value of all times when the single movement time is inconsistent) T of the moving block 24 recorded by the timer is 10s, the elastic modulus T of the guide rail 25 is 200GPa, the poisson ratio Q of the guide rail 25 is 0.3, the adhesive wear coefficient sigma between the guide rail 25 and the moving block 24 is 0.01, the average precision coefficient mu of the speed sensor and the timer is 0.99, and the gravity acceleration g is 10m/s²And calculating a fatigue state coefficient of the gate seal ring 9 with a natural constant e of 2.72

The moving number N of the moving block 24 recorded by the counter is 1000, the fatigue state coefficient δ of the gate seal ring 9 obtained by calculation is 2.974 (three digits after decimal point taking), the fatigue state coefficient δ of the gate seal ring 9 obtained by calculation is 2.974, and the preset reference value range is 0-100, and at this time, the controller controls the alarm not to give an alarm prompt.

The beneficial effects of the above technical scheme are: the wear effect coefficient of the guide rail 25 is calculated by setting a temperature sensor for detecting the temperature of the guide rail 25 rising after the moving block 24 slides once relative to the guide rail 25, setting a speed sensor for detecting the moving speed of the moving block 24 relative to the guide rail 25, setting a timer for recording the time of a single movement of the moving block 24, calculating the wear effect coefficient of the guide rail 25 by detecting the temperature of the guide rail 25 rising after a single sliding of the moving block 24 relative to the guide rail 25, the moving speed of the moving block 24 relative to the guide rail 25, the time of a single movement of the moving block 24, and formula (1), and setting a counter for recording the number of movements of the moving block 24, and then calculating the wear state index of the guide rail 25 according to the calculation result of formula (1), the number of movements of the moving block 24 recorded by the counter, and formula (2), when guide rail 25 wear state index surpasss preset benchmark value scope, the controller control alarm is reported to the police to inform relevant staff to overhaul the valve, in order to avoid taking place the accident, report to the police through setting up controller control alarm, in time inform relevant staff to overhaul, increased the intellectuality of device.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An eccentric adjusting device, characterized in that: including holding by device (1), mobile device (2), eccentric adjustment subassembly (3), lens module (6), base (7), mobile device (2) set up in on base (7), hold by device (1) set up in base (7) one end top, just hold and be provided with a plurality ofly around leaning on device (1) eccentric adjustment subassembly (3), and eccentric adjustment subassembly (3) with base (7) are connected, lens module (6) are fixed in on mobile device (2).

2. An eccentric adjustment device according to claim 1, characterized in that: the moving device (2) comprises a moving cylinder (21), a connecting plate (22), a moving block (24) and a guide rail (25), the guide rail (25) is fixed on the base (7), one end of the moving cylinder (21) is fixed on the base (7), the other end of the moving cylinder is connected with the connecting plate (22), the connecting plate (22) is fixed with the moving block (24), and the moving block (24) is connected with the guide rail (25) in a sliding mode.

3. An eccentric adjustment device according to claim 2, characterized in that: the mobile device (2) further comprises a lens fixing plate (23);

the upper part of the moving block (24) is fixed with one end of the lens fixing plate (23), and the other end of the lens fixing plate (23) is provided with the lens module (6).

4. An eccentric adjustment device according to claim 1, characterized in that: eccentric adjustment subassembly (3) include spiral differential rule (31), eccentric adjustment thimble (32), thimble move cylinder (33) set up in on base (7), thimble move cylinder (33) output is connected with spiral differential rule (31), eccentric adjustment thimble (32), just spiral differential rule (31) stretch out the end with eccentric adjustment thimble (32) one end is connected or is contacted.

5. An eccentric adjustment device according to claim 2, characterized in that: the eccentric adjustment device is characterized in that a measuring switch (4) and a moving switch (5) are arranged on the base (7), the moving switch (5) is electrically connected with the moving cylinder (21), and the measuring switch (4) is used for controlling the starting and stopping of the eccentric adjustment assembly (3).

6. An eccentric adjustment device according to claim 5, characterized in that: an auxiliary stabilizing device (100) is arranged between the base (7) and the moving block (24), and the auxiliary stabilizing device (100) is fixed on the base (7) and connected with the moving block (24).

7. An eccentric adjustment device according to claim 6, characterized in that: the auxiliary stabilizing device (100) comprises:

the device comprises a shell (101), a power piece (102), a steel cable (103), a stabilizing plate (104) and a first connecting rod (105);

the outer shell (101) is fixed on the base (7), the stabilizing plate (104) is arranged in the outer shell (101), the power parts (102) are fixed on the inner surface of the outer shell (101) and are respectively arranged on two sides of the stabilizing plate (104), and the stabilizing plate (104) is connected with the power parts (102) through the steel cable (103);

one side of the stabilizing plate (104) is fixed with one end of the first connecting rod (105), and the other end of the first connecting rod (105) is fixed on the moving block (24).

8. An eccentric adjustment device according to claim 7, characterized in that: the power member (102) includes:

the device comprises a fixed base (1021), a rotating shaft (1022), a first friction piece (1023), a second friction piece (1024), a wire wheel (1025), a fixed rod (1026), a rotating shaft narrowing end (1027), a first spring (1028), a mounting plate (1029) and an electromagnet (1030);

the fixed base (1021) is fixed on the inner surface of the shell (101), the fixed base (1021) is an annular structure, the rotating shaft (1022) is connected in the fixed base (1021) in a rotating manner, the fixed base (1021) is fixed with the first friction piece (1023), and the first friction piece (1023) is an annular structure with the same inner diameter as the fixed base (1021);

the upper end of the rotating shaft (1022) is provided with the rotating shaft narrow end (1027), and the height of the rotating shaft narrow end (1027) is higher than the position of the first friction piece (1023);

the narrow end (1027) of the rotating shaft is connected with the mounting plate (1029) in a sliding manner, the fixing rod (1026) is fixed on the mounting plate (1029), the first friction piece (1023) is arranged on the mounting plate (1029), the fixing rod (1026) penetrates through the first friction piece (1023), the wire wheel (1025) is arranged above the connecting position of the first friction piece (1023) and the fixing rod (1026), the fixing rod (1026) extends into the wire wheel (1025), the position of the wire wheel (1025) relative to the mounting plate (1029) is fixed, and the wire wheel (1025) is connected with one end of the steel cable (103);

the lower surface of the mounting plate (1029) is fixed at one end of the first spring (1028), the other end of the first spring (1028) is fixed at the lower end of the rotating shaft (1022) or the inner wall of the lower end of the fixed base (1021), and the first spring (1028) is sleeved on the rotating shaft (1022);

the electromagnet (1030) is arranged between the first spring (1028) and the rotating shaft (1022), the electromagnet (1030) is used for attracting the mounting plate (1029) made of magnetic materials, the lower end of the electromagnet (1030) is fixed to the fixed base (1021), and the electromagnet (1030) is electrically connected with the movable switch (5).

9. An eccentric adjustment device according to claim 2, characterized in that: be provided with lens protection device (200) on lens fixed plate (23), lens protection device (200) includes:

the device comprises a fixed vertical plate (201), a linear motor (202), a second connecting rod (203), a first moving plate (204), a first steel bar (205), a second steel bar (206), a first sliding groove (207), a pulley (208), a limiting fixing plate (209), a fixing bolt (210), a limiting rod (211), a limiting pulley (212), a second moving plate (213), a second sliding groove (214), a connecting rod (215), a first placing plate (216), a reinforcing fixing plate (217), a second placing plate (218), a hinge shaft (219), a first connecting bulge (220), a second connecting bulge (221), a third placing plate (222), a second spring (223), a contact plate (224), a third spring (225) and a protective cover (226);

the two fixed risers (201) are fixed on two sides of the upper surface of the lens fixing plate (23), the first steel bar (205) and the second steel bar (206) are fixed in opposite sides of the fixed risers (201), the second steel bar (206) is positioned above the first steel bar (205), and the first sliding chute (207) is formed between the first steel bar (205) and the second steel bar (206);

the limiting fixing plate (209) is arranged on the inner side of the fixed vertical plate (201), the limiting fixing plate (209) is connected with the fixed vertical plate (201) through the fixing bolt (210), the limiting fixing plate (209) is fixed with one end of the limiting rod (211), and the limiting pulley (212) is arranged at the other end of the limiting rod (211);

the connecting rod (215) is arranged between the two fixed vertical plates (201), the pulleys (208) are arranged at two ends of the connecting rod (215), and the pulleys (208) are connected with the first sliding groove (207) in a sliding manner;

the linear motor (202) is fixed on the lens fixing plate (23), the linear motor (202) is located between the two fixing vertical plates (201), the output end of the linear motor (202) is fixed with one end of the second connecting rod (203), and the other end of the second connecting rod (203) is fixed in the middle of the connecting rod (215);

two second moving plates (213) are connected to two ends of the connecting rod (215), the second moving plates (213) are located on the inner sides of the pulleys (208), and the second sliding grooves (214) are formed in the second moving plates (213);

the two second moving plates (213) are fixed with the first moving plate (204), the first placing plate (216) is vertically arranged on the first moving plate (204), and the first placing plate (216) and the first moving plate (204) are fixed through the reinforcing fixing plate (217);

one side of the first mounting plate (216) is fixed with one side of the second mounting plate (218), the other side of the second mounting plate (218) is fixed with the first connecting protrusion (220), the right side of the second mounting plate (218) is provided with the third mounting plate (222), the left side of the third mounting plate (222) is fixed with the second connecting protrusion (221), the first connecting protrusion (220) is connected with the second connecting protrusion (221) through the hinge shaft (219), and the edges of the second mounting plate (218) and the third mounting plate (222) are provided with the second spring (223) for connection;

third place board (222) right side is fixed with safety cover (226), third place board (222) right side edge with third spring (225) one end is connected, third spring (225) other end connect in contact plate (224), contact plate (224) middle part be provided with the same through-hole of safety cover (226) diameter, safety cover (226) right-hand member sliding connection with in the through-hole in contact plate (224) middle part.