Parallel laser adjusting device

Abstract

The utility model discloses a parallel laser adjusting device, which belongs to the technical field of laser and is characterized by comprising a front-end sleeve, a middle sleeve and a rear-end sleeve, two ends of the middle sleeve are respectively connected with connecting sleeves, and the front-end sleeve and the rear-end sleeve are respectively in sliding fit with the corresponding connecting sleeves; a first lens is mounted at the inner end of the front-end sleeve, and a laser transmitter is mounted at the outer end of the front-end sleeve; a second lens and a third lens are sequentially installed in a cavity of the middle sleeve, and a fourth lens, a fifth lens and a sixth lens are sequentially installed in a cavity of the rear end sleeve. The fourth lens is installed at the inner end of the rear-end sleeve, the sixth lens is installed at the outer end of the rear-end sleeve, and the fifth lens is located between the fourth lens and the sixth lens. Compared with the prior art, the device has the characteristics of changing the distance between the lenses and changing the size of laser spots.

Description

Technical Field

[0001] This utility model relates to the field of laser technology, and in particular to a parallel laser adjustment device. Background Technology

[0002] The use of lasers in industrial applications is becoming increasingly widespread, with their powerful processing capabilities and high precision making them the preferred tool in many fields. To meet the diverse needs of different industrial applications, the output end of a laser emitter is often equipped with a carefully designed combined lens system. This system, by adjusting the distance between the lenses, can flexibly adjust the spot size of the laser beam to adapt to different processing tasks.

[0003] In practice, lenses are typically cleverly placed within sleeves, which are designed to be nested in layers. By precisely adjusting the relative positions of the sleeves, we can fine-tune the lens spacing, thereby altering the focusing state of the laser beam after passing through the lens and controlling the size of the laser spot. This adjustment method is not only flexible but also ensures optimal focusing of the laser beam to meet the requirements of high-precision machining.

[0004] However, problems arise when the number of lenses is large. Each lens requires a sleeve that fits tightly, and these sleeves need to be nested together to form a complex assembly structure. In such a structure, ensuring the airtightness between multiple sleeves becomes a pressing issue.

[0005] Due to the minute gaps between the sleeves and potential assembly errors, dust, dirt, and other impurities can easily enter the space between the lenses. Once these impurities adhere to the lens surface or the gaps between the lenses, they can severely interfere with the transmission of the laser beam. They may absorb, scatter, or reflect the laser beam, leading to energy loss, reduced focusing effect, and even potentially causing beam distortion and shift. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of the existing technology by providing a parallel laser adjustment device that can change the size of the laser spot by altering the distance between the lenses.

[0007] This utility model provides a parallel laser adjustment device, characterized in that it includes a front sleeve, a middle sleeve, and a rear sleeve. Each of the front, middle, and rear sleeves has a cavity open at both ends, and a connecting sleeve has a frustum-shaped cavity open at both ends. The two ends of the middle sleeve are connected to the connecting sleeve, and the front and rear sleeves are slidably fitted with their respective connecting sleeves. A first lens is installed at the inner end of the front sleeve, and a laser emitter is installed at the outer end of the front sleeve. A second and a third lens are sequentially installed in the cavity of the middle sleeve, and a fourth, a fifth, and a sixth lens are sequentially installed in the cavity of the rear sleeve. The fourth lens is installed at the inner end of the rear sleeve, the sixth lens is installed at the outer end of the rear sleeve, and the fifth lens is located between the fourth and sixth lenses.

[0008] Furthermore, the outer ends of the connecting sleeves are coaxially and fixedly connected to the outer guide sleeves. The outer guide sleeves are provided with guide holes open at both ends, and the guide holes of the outer guide sleeves are connected to the frustum-shaped cavity of the connecting sleeves. The inner end of the front sleeve is coaxially and fixedly connected to the first inner guide sleeve. The first inner guide sleeve is provided with placement holes open at both ends, and the placement holes are connected to the cylindrical cavity of the front sleeve. The first inner guide sleeve is inserted into the guide hole of one of the outer guide sleeves, and the two are slidably engaged. The inner end of the rear sleeve is coaxially and fixedly connected to the second inner guide sleeve. The second inner guide sleeve is provided with placement holes open at both ends, and the placement holes are connected to the cylindrical cavity of the rear sleeve. The second inner guide sleeve is inserted into the guide hole of the other outer guide sleeve, and the two are slidably engaged.

[0009] Furthermore, the front sleeve and the rear sleeve are respectively connected to the middle sleeve via telescopic rods.

[0010] Furthermore, sealing rings are installed between the first inner guide sleeve and the guide hole of the corresponding outer guide sleeve, respectively.

[0011] Furthermore, the first lens, second lens, third lens, fourth lens, fifth lens, and sixth lens are convex lenses, concave lenses, or compound lenses.

[0012] Furthermore, fixed sleeves are respectively installed on the outer walls of the intermediate sleeve and the rear sleeve. The fixed sleeves have placement cavities inside. The cavities of the intermediate sleeve and the rear sleeve are respectively connected to the placement cavities through elongated guide holes. The fixed sleeve installed on the intermediate sleeve is the first fixed sleeve, and the fixed sleeve installed on the rear sleeve is the second fixed sleeve. Two driving mechanisms are installed in the first fixed sleeve, and one driving mechanism is installed in the second sleeve. The driving mechanism includes a lead screw, a lead screw nut, and a guide plate.

[0013] Furthermore, a partition plate is fixedly installed in the middle of the placement cavity of the first fixed sleeve. Two symmetrically arranged lead screws are installed inside the placement cavity of the first fixed sleeve. The inner ends of the two lead screws are rotatably connected to the partition plate, and the outer ends pass through the end wall of the first fixed sleeve and are connected to the output shaft of the motor. The two lead screws are respectively engaged with corresponding lead screw nuts. The two lead screw nuts are respectively connected to the first fixed frame through guide plates. The guide plates pass through the elongated guide holes and are slidably engaged with the elongated guide holes. One of the first fixed frames of the intermediate sleeve is fixedly connected to the second lens, and the other first fixed frame is fixedly connected to the third lens.

[0014] Furthermore, a second fixed sleeve is installed on the outer wall of the rear sleeve. The second fixed sleeve has a placement cavity inside. The cavity of the rear sleeve and the placement cavity are connected through an elongated guide hole. A lead screw is installed in the placement cavity of the second fixed sleeve. One end of the lead screw is rotatably connected to the end wall of the second fixed sleeve, and the other end passes through the other end wall of the second fixed sleeve and is connected to the output shaft of the motor. The lead screw and the lead screw nut cooperate with each other. The lead screw nut is connected to the second fixed frame through a guide plate. The second guide plate passes through the elongated guide hole and is slidably engaged with the elongated guide hole. The second fixed frame is fixedly connected to the fifth lens.

[0015] Compared with the prior art, the present invention has the following outstanding advantages:

[0016] 1. This utility model avoids the use of a structure with multiple sleeves nested together by installing a drive mechanism inside the fixed sleeve of the middle sleeve and the rear sleeve to drive the lens to move and adjust the distance between the lenses, thereby ensuring the sealing of the device.

[0017] 2. A partition is fixedly installed in the middle of the placement cavity of the first fixed sleeve of this utility model. The partition separates the two driving mechanisms. When the driving mechanism drives the second lens and the third lens in motion, it can prevent the second lens and the third lens from colliding with each other and being damaged. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is the front view of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0021] Among them, 1. front sleeve; 101. first inner guide sleeve; 2. connecting sleeve; 201. outer guide sleeve; 3. intermediate sleeve; 301. first fixing frame; 4. first fixing sleeve; 5. rear sleeve; 501. first fixing frame; 502. second inner guide sleeve; 6. second fixing sleeve; 7. telescopic rod; 8. drive mechanism; 801. lead screw; 802. lead screw nut; 803. guide plate; 9. first lens; 10. second lens; 11. third lens; 12. fourth lens; 13. fifth lens; 14. sixth lens. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1-3 As shown, this utility model includes a front sleeve 1, a middle sleeve 3, and a rear sleeve 5.

[0024] The front sleeve 1, the middle sleeve 3 and the rear sleeve 5 are each provided with a cylindrical cavity with openings at both ends, and the connecting sleeve 2 is provided with a frustum-shaped cavity with openings at both ends.

[0025] The two ends of the intermediate sleeve 3 are respectively connected to the connecting sleeve 2. The outer ends of the connecting sleeve 2 are respectively coaxially fixedly connected to the outer guide sleeve 201. The outer guide sleeve 201 is provided with a guide hole with two openings. The guide hole of the outer guide sleeve 201 is connected to the frustum-shaped cavity of the connecting sleeve 2. The inner end of the front sleeve 1 is coaxially fixedly connected to the first inner guide sleeve 101. The first inner guide sleeve 101 is provided with a placement hole with two openings. The placement hole is connected to the cylindrical cavity of the front sleeve 1. The first inner guide sleeve 101 is inserted into the guide hole of one of the outer guide sleeves 201, and the two slide in fit.

[0026] The inner end of the rear sleeve 5 is coaxially and fixedly connected to the second inner guide sleeve 502. The second inner guide sleeve 502 is provided with a placement hole with openings at both ends. The placement hole is connected to the cylindrical cavity of the rear sleeve 5. The second inner guide sleeve 502 is inserted into the guide hole of another outer guide sleeve 201, and the two are slidably engaged.

[0027] The front sleeve 1 and the rear sleeve 5 are respectively connected to the outer guide sleeve 201 of the middle sleeve 3 via the telescopic rod 7.

[0028] In the optimized scheme, sealing rings are installed between the first inner guide sleeve 101 and the second inner guide sleeve 502 and the guide holes of the corresponding connected outer guide sleeve 201, which can prevent dust and other impurities from entering their interiors.

[0029] A first lens 9 is installed in the placement hole of the first inner guide sleeve 101, and a laser emitter is installed in the cavity of the front sleeve 1.

[0030] The cavity of the intermediate sleeve 3 is equipped with a second lens 10 and a third lens 11 installed in sequence. The cavity of the rear sleeve 5 is equipped with a fourth lens 12, a fifth lens 13 and a sixth lens 14 installed in sequence. The fourth lens 12 is installed at the end of the second inner guide sleeve 502 of the rear sleeve 5, the sixth lens 14 is installed at the end of the rear sleeve 5, and the fifth lens 13 is located between the fourth lens 12 and the sixth lens 14.

[0031] The first lens 9, the second lens 10, the third lens 11, the fourth lens 12, the fifth lens 13, and the sixth lens 14 are convex lenses, concave lenses, or compound lenses.

[0032] Fixed sleeves are respectively installed on the outer walls of the intermediate sleeve 3 and the rear sleeve 5. The fixed sleeves have placement cavities inside. The cavities of the intermediate sleeve 3 and the rear sleeve 5 are respectively connected to the placement cavities through elongated guide holes. The fixed sleeve installed on the intermediate sleeve 3 is the first fixed sleeve 4, and the fixed sleeve installed on the rear sleeve 5 is the second fixed sleeve 6.

[0033] The first fixed sleeve 4 is equipped with two drive mechanisms 8, and the second fixed sleeve 6 is equipped with one drive mechanism 8. The drive mechanism 8 includes a lead screw 801, a lead screw nut 802, and a guide plate 803.

[0034] A partition is fixedly installed in the middle of the placement cavity of the first fixed sleeve 4. Two symmetrically arranged lead screws 801 are installed in the placement cavity of the first fixed sleeve 4. The inner ends of the two lead screws 801 are rotatably connected to the partition, and the outer ends pass through the end wall of the first fixed sleeve 4 and are connected to the output shaft of the motor.

[0035] The two lead screws 801 are respectively engaged with the corresponding lead screw nuts 802. The two lead screw nuts 802 are respectively connected to the first fixed frame through the guide plate 803. The guide plate 803 passes through the elongated guide hole and is slidably engaged with the elongated guide hole.

[0036] One of the first fixing frames of the intermediate sleeve 3 is fixedly connected to the second lens 10, and the other first fixing frame is fixedly connected to the third lens 11.

[0037] A second fixed sleeve 6 is installed on the outer wall of the rear sleeve 5. The second fixed sleeve 6 has a placement cavity inside. The cavity of the rear sleeve 5 is connected to the placement cavity through an elongated guide hole. A lead screw 801 is installed in the placement cavity of the second fixed sleeve 6. One end of the lead screw 801 is rotatably connected to the end wall of the second fixed sleeve 6, and the other end passes through the other end wall of the second fixed sleeve 6 and is connected to the output shaft of the motor.

[0038] The lead screw 801 and the lead screw nut 802 cooperate. The lead screw nut 802 is connected to the second fixed frame through the guide plate 803. The second guide plate 803 passes through the elongated guide hole and slides in cooperation with the elongated guide hole.

[0039] The second fixed frame is fixedly connected to the fifth lens 13.

[0040] The operation process is as follows: When using this utility model, by adjusting the distance between the front sleeve 1 and the middle sleeve 3, the distance between the first lens 9 and the second lens 10 can be adjusted. By activating the two drive mechanisms 8 inside the middle sleeve 3, the distance between the second lens 10 and the third lens 11 can be adjusted. By adjusting the distance between the rear sleeve 5 and the middle sleeve 3, the distance between the third lens 11 and the fourth lens 12 can be adjusted. By activating the drive mechanism 8 inside the rear sleeve 5, the distance between the fourth lens 12 and the fifth lens 13, and the fifth lens 13 and the sixth lens 14 can be adjusted.

[0041] It should be noted that the specific embodiments of this utility model have been described in detail. For those skilled in the art, all obvious changes made to it without departing from the spirit and scope of this utility model are within the protection scope of this utility model.

Claims

1. A parallel laser adjustment device, characterized by: The utility model relates to a laser emitter, including front end sleeve (1), middle sleeve (3) and rear end sleeve (5), front end sleeve (1), middle sleeve (3) and rear end sleeve (5) are equipped with two ends open cavity respectively, and connecting sleeve (2) is equipped with two ends open circular truncated cone cavity, the both ends of middle sleeve (3) are connected with connecting sleeve (2) respectively, and front end sleeve (1) and rear end sleeve (5) are connected with corresponding connecting sleeve (2) sliding fit respectively, the inner end of front end sleeve (1) is installed with first lens (9), and the outer end of front end sleeve (1) is installed with laser emitter, the cavity of middle sleeve (3) is installed with second lens (10) and third lens (11) sequentially, and the cavity of rear end sleeve (5) is installed with fourth lens (12), fifth lens (13) and sixth lens (14) sequentially, fourth lens (12) is installed in the inner end of rear end sleeve (5), sixth lens (14) is installed in the outer end of rear end sleeve (5), and fifth lens (13) is located between fourth lens (12) and sixth lens (14).

2. A parallel laser adjustment device according to claim 1, characterized in that: The outer end of connecting sleeve (2) is coaxially fixedly connected with outer guide sleeve (201) respectively, outer guide sleeve (201) is equipped with two ends open guide hole, and the guide hole of outer guide sleeve (201) is connected with the circular truncated cone cavity of connecting sleeve (2), the inner end of front end sleeve (1) is coaxially fixedly connected with first inner guide sleeve (101), first inner guide sleeve (101) is equipped with two ends open placing hole, and the placing hole is connected with the cylindrical cavity of front end sleeve (1), first inner guide sleeve (101) is inserted in the guide hole of one outer guide sleeve (201), and both sliding fit, the inner end of rear end sleeve (5) is coaxially fixedly connected with second inner guide sleeve (502), second inner guide sleeve (502) is equipped with two ends open placing hole, and the placing hole is connected with the cylindrical cavity of rear end sleeve (5), second inner guide sleeve (502) is inserted in the guide hole of another outer guide sleeve (201), and both sliding fit.

3. The parallel laser adjustment device of claim 1, wherein: Front end sleeve (1) and rear end sleeve (5) are connected with middle sleeve (3) through telescopic rod (7) respectively.

4. The parallel laser adjustment device of claim 2, wherein: Sealing ring is installed between the guide hole of corresponding outer guide sleeve (201) of first inner guide sleeve (101) and second inner guide sleeve (502) respectively.

5. The parallel laser adjustment device of claim 1, wherein: First lens (9), second lens (10), third lens (11), fourth lens (12), fifth lens (13) and sixth lens (14) are convex lens, concave lens or compound lens.

6. The parallel laser adjustment device of claim 1, wherein: The outer wall of the intermediate sleeve (3) and the rear end sleeve (5) is respectively provided with a fixing sleeve, and the fixing sleeve is internally provided with a placing cavity; the cavities of the intermediate sleeve (3) and the rear end sleeve (5) are respectively communicated with the placing cavity through an elongated guide hole; the fixing sleeve installed on the intermediate sleeve (3) is a first fixing sleeve (4), and the fixing sleeve installed on the rear end sleeve (5) is a second fixing sleeve (6); the first fixing sleeve (4) is internally provided with two driving mechanisms (8), and the second sleeve is internally provided with a driving mechanism (8); the driving mechanism (8) comprises a lead screw (801), a lead screw nut (802) and a guide plate (803).

7. A parallel laser adjustment device according to claim 6, characterized in that: The first fixing sleeve (4) is internally provided with two symmetrically arranged lead screws (801) in the middle position of the placing cavity; the inner ends of the two lead screws (801) are rotationally connected with the partition plate, and the outer ends are connected with the output shaft of the motor through the end wall of the first fixing sleeve (4); the two lead screws (801) are respectively matched with corresponding lead screw nuts (802); the two lead screw nuts (802) are respectively connected with the first fixing frame through the guide plate (803); the guide plate (803) passes through the elongated guide hole and is slidably matched with the elongated guide hole; one of the first fixing frames of the intermediate sleeve (3) is fixedly connected with the second lens (10), and the other first fixing frame is fixedly connected with the third lens (11).

8. The parallel laser adjustment device of claim 6, wherein: The outer wall of the rear end sleeve (5) is provided with a second fixing sleeve (6), and the second fixing sleeve (6) is internally provided with a placing cavity; the cavity of the rear end sleeve (5) is communicated with the placing cavity through an elongated guide hole; the placing cavity of the second fixing sleeve (6) is internally provided with a lead screw (801); one end of the lead screw (801) is rotationally connected with the end wall of the second fixing sleeve (6), and the other end is connected with the output shaft of the motor through the other end wall of the second fixing sleeve (6); the lead screw (801) is matched with the lead screw nut (802); the lead screw nut (802) is connected with the second fixing frame through the guide plate (803); the second guide plate (803) passes through the elongated guide hole and is slidably matched with the elongated guide hole; and the second fixing frame is fixedly connected with the fifth lens (13).

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