Laser alignment device for sealing light path

Abstract

The utility model discloses a laser alignment device for sealing a light path, which comprises a cross wire positioning part, a first baffle plate and a second baffle plate which are positioned on two sides of the cross wire positioning part, and a fixing part positioned at the top of the cross wire positioning part, and the fixing part is used for connecting the laser alignment device with laser equipment. The cross wire positioning part comprises a bent plate, blocking covers located on the two sides of the bent plate and a partition plate located between the two blocking covers, containing grooves used for containing the first baffle and the second baffle are formed between the partition plate and the bent plate and between the partition plate and the two blocking covers respectively, and gaps are formed between the first baffle and / or the second baffle and the partition plate. A cross wire positioning hole penetrating through the thickness direction of the partition plate is formed in the partition plate. According to the laser alignment device for sealing the light path, smoke generated when light spots hit on photographic paper during laser alignment can overflow from a gap between the first baffle or the second baffle and the partition plate and cannot stay in a light box of laser equipment, and pollution to a lens can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of laser technology, specifically relates to a laser alignment device for sealed light path. BACKGROUND

[0002] In prior art, in the process of debugging high-power infrared laser light path, fork wire is used as a reference to control the light spot of laser to form a light spot on photo paper after passing through fork wire, and the light path is aligned by adjusting the concentricity of laser light spot and fork wire. When laser light spot hits photo paper, a lot of smoke is generated, and the smoke will stay in the light box if traditional tool is used, which is easy to contaminate the lens. SUMMARY

[0003] Therefore, in order to overcome the defects of prior art, the utility model aims at providing an improved laser alignment device for sealed light path.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A laser alignment device for sealed light path, comprising a fork wire positioning part, first and second baffle plates located on both sides of the fork wire positioning part, and a fixing part located on the top of the fork wire positioning part, the fixing part is used to connect the laser alignment device with laser equipment, the fork wire positioning part comprises a bent plate, baffle covers located on both sides of the bent plate, and a partition plate located between the two baffle covers, the partition plate and the bent plate and the two baffle covers form containing grooves for placing the first and second baffle plates respectively, and the first and / or second baffle plates have a gap with the partition plate, and a fork wire positioning hole penetrating through the thickness direction of the partition plate is formed on the partition plate.

[0006] According to some preferred embodiments of the utility model, the lengths of the first and second baffle plates are equal and less than the length of the partition plate, the thickness of the first baffle plate is less than the depth of the containing groove, and a photo paper is inserted in the gap between the first baffle plate and the partition plate. In the utility model, the first and second baffle plates can be easily removed for cleaning or replacement after the laser alignment device is used for several times, which facilitates the recycling of the device.

[0007] Preferably, when laser alignment is performed, laser pulses are incident from the direction of the second baffle plate, pass through the fork wire positioning hole and hit the photo paper, and then are emitted from the first baffle plate. During the laser alignment process, the light path is adjusted according to the relative position of the laser light spot and the fork wire positioning hole, so that the center of the laser light spot coincides with the center of the fork wire positioning hole, to achieve the effect of collimation.

[0008] According to some preferred embodiments of the utility model, the fork wire positioning hole is located at the lower end of the partition plate, the fork wire positioning hole comprises a hole body and two horizontal rods and a plurality of annular rings inside the hole body, the plurality of annular rings are sequentially and concentrically arranged outward from the center of the hole body; the two horizontal rods are cross and perpendicular, the intersection of the two horizontal rods coincides with the center of the hole body, the end of each horizontal rod is fixedly connected with the inner wall of the hole body, and each horizontal rod passes through the plurality of annular rings.

[0009] According to some preferred embodiments of the utility model, the diameter of the hole body is greater than the diameter of the laser spot, the ratio of the diameter of the hole body to the diameter of the laser spot is 1.25-1:1, the distance between the adjacent two annular rings is 1-4mm, and the wall thickness of each annular ring is less than 0.5mm.

[0010] According to some preferred embodiments of the utility model, the bending plate comprises a first plate body and a second plate body located at both ends of the first plate body, the first plate body is arranged in an arc shape, the two second plate bodies are parallel to each other and have equal heights, and the bottom surfaces of the two second plate bodies are flush.

[0011] According to some preferred embodiments of the utility model, the two cover plates are parallel to each other, one side of the cover plate is fixedly connected with one side of the bending plate, the edge of the partition plate is fixedly connected with the inner wall of the bending plate, and the distance from the two cover plates to the partition plate is equal.

[0012] According to some preferred embodiments of the utility model, the normal projection of the cover plate on a vertical plane parallel to the partition plate is located in the range of the normal projection of the bending plate on the vertical plane parallel to the partition plate, a through hole penetrating the thickness direction of each cover plate is further formed, and the through hole is in communication with the corresponding accommodating groove.

[0013] According to some preferred embodiments of the utility model, the fork wire positioning hole is located in the range of the normal projection of the through hole on the partition plate, the width of the through hole is less than the width of the accommodating groove and the first cover plate and the second cover plate, and the length of the through hole is less than the length of the accommodating groove.

[0014] According to some preferred embodiments of the utility model, the fixed part includes two fixed seats at the two ends of the fork wire positioning part top and the cover plate corresponding to the fixed seat, the partition plate is penetrated from the bottom of the fixed seat to the height direction of the fixed seat, the top surface of each fixed seat is provided with a groove near one side of the partition plate, each groove is formed by two first groove parts which are symmetrical about the partition plate and are arranged at intervals, the cover plate is arranged on the region formed by the two first groove parts on the same side of the partition plate of the two fixed seats, and the cover plate is used for covering the top of the first baffle and / or the second baffle. In some embodiments of the utility model, the fixed part further includes a bolt, and the bolt is penetrated through the mounting hole of the fixed seat and the laser equipment to fix the laser alignment device on the light box.

[0015] According to some preferred embodiments of the utility model, the first baffle and the second baffle are transparent optical glass or quartz glass.

[0016] Compared with the prior art, the laser alignment device for sealing an optical path can make the smoke generated when the laser is aligned and the light spot is on the photo paper overflow from the gap between the first baffle or the second baffle and the partition plate, and the smoke does not stay in the light box of the laser equipment, so that pollution to the lens can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0018] Figure 1 It is a perspective structural schematic view of the laser alignment device in the preferred embodiment of the utility model;

[0019] Figure 2 It is a perspective structural schematic view of the laser alignment device in the preferred embodiment of the utility model; Figure 1

[0020] Figure 3 It is a top view structural schematic view of the laser alignment device in the preferred embodiment of the utility model after omitting two cover plates;

[0021] Figure 4 It is a perspective structural schematic view of the laser alignment device in the preferred embodiment of the utility model after omitting two cover plates and the first baffle and the second baffle;

[0022] Figure 5 It is a perspective structural schematic view of the laser alignment device in the preferred embodiment of the utility model after omitting two cover plates and the first baffle and the second baffle; Figure 4 ​schematic view of the front structure of the main part;

[0023] Figure 6 for Figure 5 schematic view of the sectional structure along the A-A direction;

[0024] Wherein, fork wire positioning part-1, first plate body-11a, second plate body-11b, cover-12, through hole-121, partition-13, hole body-131, crossbar-132, first ring-133, second ring-134, containing groove-14, first baffle-2, second baffle-3, fixed part-4, fixed seat-41, first groove-411, cover plate-42, bolt-43. DETAILED DESCRIPTION

[0025] In order to make the person skilled in the art better understand the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0026] With reference to Figures 1 to 6 , the laser alignment device for sealing the optical path in the embodiment includes a fork wire positioning part 1, first and second baffles 2 and 3 located on both sides of the fork wire positioning part 1, and a fixed part 4 located on the top of the fork wire positioning part 1. The first and second baffles 2 and 3 are transparent optical glass or quartz glass to ensure that the laser can pass through. The fixed part 4 is used to connect the laser alignment device with the light box of the laser equipment, and can also be used to cover the top of the first and second baffles 2 and 3 to prevent them from falling. After the laser alignment device in the embodiment is fixedly connected with the light box, the position of the laser light path is adjusted according to the position of the fork wire positioning part 1 to align the optical path and achieve the effect of optical path collimation.

[0027] Further, as Figure 1 , Figures 4 to 6As shown, the fork wire positioning part 1 comprises a bent plate, two cover plates 12 located on both sides of the bent plate, and a partition plate 13 located between the two cover plates 12, the first cover plate 2 and the second cover plate 3 are parallel to each other and parallel to the partition plate 13, the length of the first cover plate 2 and the second cover plate 3 is equal and less than the length of the partition plate 13; the partition plate 13 is provided with a fork wire positioning hole penetrating through the thickness direction thereof. The opening position of the fork wire positioning hole on the partition plate 13 is designed according to the direction and path of the laser light incident after the laser alignment device is connected with the light box. The fork wire positioning hole in the embodiment is located at the lower end of the partition plate 13, and the fork wire positioning hole comprises a hole body 131 and two cross rods 132 and a plurality of circular rings inside the hole body 131, the two cross rods 132 are cross and perpendicular, the intersection point of the two cross rods 132 coincides with the center of the hole body 131, and the end of each cross rod 132 is fixedly connected with the inner wall of the hole body 131.

[0028] The two circular rings in the embodiment are respectively a first circular ring 133 and a second circular ring 134, the first circular ring 133 and the second circular ring 134 are concentrically arranged outward from the center of the hole body 131, that is, the first circular ring 133 and the second circular ring 134 are concentric circular rings; each cross rod 132 passes through the first circular ring 133 and the second circular ring 134 at the same time, and the first circular ring 133 and the second circular ring 134 are fixedly connected with the two cross rods 132. The diameter of the hole body 131 is greater than the diameter of the laser spot, and the ratio of the diameter of the hole body 131 to the diameter of the laser spot is 1.25-1:1, preferably, the ratio of the diameter of the hole body 131 to the diameter of the laser spot in the embodiment is 1.25:1; the radius of the first circular ring 133, the distance between the first circular ring 133 and the second circular ring 134, and the distance between the second circular ring 134 and the hole body 131 are all 1-4mm; the wall thickness of the first circular ring 133 and the second circular ring 134 is less than 0.5mm.

[0029] Further, the bent plate comprises a first plate body 11a and second plate bodies 11b located at both ends of the first plate body 11a, the first plate body 11a is arranged in an arc shape, the two second plate bodies 11b are parallel to each other and have equal heights, and the bottom surfaces of the two second plate bodies 11b are flush. The two cover plates 12 are parallel to each other and have equal heights, one side of each cover plate 12 is fixedly connected with one side of the bent plate, the edge of the partition plate 13 is fixedly connected with the inner wall of the bent plate, and the distance between the two cover plates 12 and the partition plate 13 is equal; the partition plate 13 and the bent plate and the two cover plates 12 form containing grooves 14 for respectively placing the first baffle 2 and the second baffle 3, the two containing grooves 14 are located at both sides of the partition plate 13 respectively, and the containing grooves 14 are arranged so that the first baffle 2 and the second baffle 3 can move up and down relative to the containing grooves 14, facilitating the first baffle 2 and the second baffle 3 to be taken out of or put back into the containing grooves 14, and after the laser alignment device is used for multiple times, the first baffle 2 and the second baffle 3 can be timely removed for wiping and cleaning or replacement, facilitating recycling of the device.

[0030] Specifically, as shown in Figure 3 , the thickness of the first baffle 2 is less than the depth of the containing groove 14, so that there is a first gap between the first baffle 2 and the partition plate 13, and a photo paper is inserted in the first gap between the first baffle 2 and the partition plate 13; when laser alignment is performed, laser pulses are incident from the direction of the second baffle 3, pass through the fork wire positioning hole and then hit the photo paper, and then are emitted from the first baffle 2. The smoke generated by the laser spot hitting the photo paper can overflow from the gap between the first baffle 2 and the partition plate 13 and will not stay inside the light box of the laser equipment, which can avoid pollution to the lens.

[0031] Further, as shown in Figure 5 and Figure 6 , the orthographic projection of the cover plate 12 on a vertical plane parallel to the partition plate 13 is located within the orthographic projection of the bent plate on the vertical plane parallel to the partition plate 13, and the distance between the two cover plates 12 is equal to the width of the first plate body 11a and the second plate body 11b. A through opening 121 penetrating the thickness direction of each cover plate 12 is also formed on each cover plate 12, the through opening 121 is in communication with a corresponding containing groove 14, the fork wire positioning hole is located within the orthographic projection of the through opening 121 on the partition plate 13, and the through opening 121 is arranged to expose most of the first baffle 2 and the second baffle 3 in the containing groove 14 while ensuring that the fork wire positioning hole is not blocked. In addition, the width of the through opening 121 is less than the width of the containing groove 14 and the first baffle 2 and the second baffle 3, and the length of the through opening 121 is less than the length of the containing groove 14, which can ensure that the first baffle 2 and the second baffle 3 are limited in the respective containing grooves 14 and will not fall out of the containing grooves 14 due to the through opening 121.

[0032] Further, as shown in Figures 1 to 5As shown, the fixing part 4 includes two fixing bases 41 located at the top of the fork wire positioning part 1 at both ends, a cover plate 42 arranged corresponding to the fixing base 41, and a latch 43 arranged corresponding to the fixing base 41, the latch 43 is rotatably connected with the fixing base 41 and the latch 43 penetrates the height direction of the fixing base 41, and the laser alignment device is fixed on the light box by penetrating the mounting hole on the light box through the latch 43 and the fixing base 41. Both of the fixing bases 41 are fixedly connected with the fork wire positioning part 1, the partition plate 13 penetrates the height direction of the fixing base 41 from the middle of the bottom of the fixing base 41 upwards, and the distance between the outer sides of the two fixing bases 41 away from each other is greater than the width of the partition plate 13.

[0033] The top surface of each fixing base 41 is provided with a groove near one side of the partition plate 13, the top surface of the partition plate 13 is flush with the top surface of the groove, and each groove is formed by two first groove parts 411 which are symmetrically and spaced apart with respect to the partition plate 13, that is, the partition plate 13 divides one groove on each fixing base 41 into two first groove parts 411. The cover plate 42 is arranged on the region jointly enclosed by the two first groove parts 411 of the two fixing bases 41 on the same side of the partition plate 13, and the cover plate 42 is used for covering the top of the first baffle 2 and / or the second baffle 3 to prevent the first baffle 2 and the second baffle 3 from falling from the top of the containing groove 14. The cover plate 42 is detachably connected with the fixing base 41 to ensure that the cover plate 42 can be conveniently removed when the first baffle 2 and the second baffle 3 need to be wiped or replaced. In addition, as shown, Figure 2 One of the cover plates 42 arranged on the top of the first baffle 2 has a second gap between the side close to the partition plate 13 and the partition plate 13, and the distance from the side of the first baffle 2 away from the partition plate 13 to the partition plate 13 is greater than the second gap, so that the photo paper can be directly inserted from the second gap without removing the cover plate 42, and the photo paper is located between the first baffle 2 and the partition plate 13, and the first baffle 2 is limited.

[0034] In some embodiments of the utility model, the first baffle 2 can move back and forth in the containing groove 14 along the horizontal direction perpendicular to the partition plate 13 for fine adjustment, and the photo paper is inserted downward from the second gap when it is needed to be inserted, at this time, if the first baffle 2 is close to the partition plate 13, the first baffle 2 can be manually moved away from the partition plate 13 by using the photo paper to put the photo paper into the first gap between the first baffle 2 and the partition plate 13, and if the first baffle 2 is separated from the partition plate 13 to expose the first gap, the photo paper can be directly inserted into the first gap from the second gap.

[0035] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A laser alignment device for sealing an optical path, characterized in that, The device includes a fork-wire positioning part, a first baffle and a second baffle located on both sides of the fork-wire positioning part, and a fixing part located on the top of the fork-wire positioning part. The fixing part is used to connect the laser alignment device to the laser equipment. The fork-wire positioning part includes a bending plate, baffles located on both sides of the bending plate, and a partition located between the two baffles. The partition, the bending plate, and the two baffles form receiving grooves for placing the first baffle and the second baffle, respectively. There is a gap between the first baffle and / or the second baffle and the partition. The partition has a fork-wire positioning hole that extends through its thickness direction.

2. The laser alignment device according to claim 1, characterized in that, The first baffle and the second baffle are of equal length and less than the length of the partition. The thickness of the first baffle is less than the depth of the receiving groove. Photo paper is inserted in the gap between the first baffle and the partition.

3. The laser alignment device according to claim 2, characterized in that, The fork-wire positioning hole is located at the lower end of the partition plate. The fork-wire positioning hole includes a hole body and two crossbars and multiple rings located inside the hole body. The multiple rings are arranged concentrically and at intervals from the center of the hole body outwards. The two crossbars are intersecting and perpendicularly arranged. The intersection point of the two crossbars coincides with the center of the hole body. The end of each crossbar is fixedly connected to the inner wall of the hole body. Each crossbar passes through multiple rings simultaneously.

4. The laser alignment device according to claim 3, characterized in that, The diameter of the hole body is larger than the diameter of the laser spot, and the ratio of the diameter of the hole body to the diameter of the laser spot is 1.25-1:

1. The distance between two adjacent rings is 1-4mm, and the wall thickness of each ring is less than 0.5mm.

5. The laser alignment device according to claim 2, characterized in that, The bending plate includes a first plate and two second plates located at both ends of the first plate. The first plate is arc-shaped, and the two second plates are parallel to each other and have the same height. The bottom surfaces of the two second plates are flush.

6. The laser alignment device according to claim 5, characterized in that, The two covers are parallel to each other, one side of the cover is fixedly connected to one side of the bending plate, the edge of the partition is fixedly connected to the inner wall of the bending plate, and the distances from the two covers to the partition are equal.

7. The laser alignment device according to claim 6, characterized in that, The orthographic projection of the cover on a vertical plane parallel to the partition is within the range of the orthographic projection of the bent plate on a vertical plane parallel to the partition. Each cover is also provided with an opening that penetrates its thickness direction, and the opening is connected to a corresponding receiving groove.

8. The laser alignment device according to claim 7, characterized in that, The fork-wire positioning hole is located within the range of the orthographic projection of the opening onto the partition plate. The width of the opening is less than the width of the receiving groove and the first and second baffles, and the length of the opening is less than the length of the receiving groove.

9. The laser alignment device according to claim 1, characterized in that, The fixing part includes two fixing seats located at the top ends of the fork positioning part and a cover plate corresponding to the fixing seats. The partition plate extends upward from the middle of the bottom of the fixing seat through the height direction of the fixing seat. A groove is formed on the top surface of each fixing seat near the partition plate. Each groove is formed by two first grooves that are symmetrical about the partition plate and spaced apart. The cover plate covers the area formed by the two first grooves on the same side of the partition plate of the two fixing seats. The cover plate is used to cover the top of the first baffle and / or the second baffle.

10. The laser alignment device according to claim 1, characterized in that, The first baffle and the second baffle are made of transparent optical glass or quartz glass.

Images