Laser head with focusing function

Abstract

The utility model discloses a laser head with a focusing function, which belongs to the technical field of laser heads, and comprises a connecting block and an adjusting cylinder, the bottom of the connecting block is rotatably connected with an adjusting sleeve, and the inner wall of the adjusting sleeve is provided with a spiral groove; the adjusting cylinder is slidably connected to the bottom of the connecting block, and the side wall of the adjusting cylinder is fixedly connected with a clamping head. A sliding groove is formed in the side wall of the connecting block, and the clamping head penetrates through the sliding groove and extends into the spiral groove. The lens is located in the adjusting cylinder. According to the laser head with the focusing function, through the design that the adjusting sleeve and the adjusting cylinder are matched with each other, the adjusting sleeve rotates to adjust the vertical position of the adjusting cylinder, the problem that the lens is fixed is further solved, flexible focusing can be achieved, the situation that focusing can be achieved only by moving the whole laser head is avoided, the focusing flexibility is greatly improved, and the focusing efficiency is improved. Therefore, processing of different batches of objects can be met.

Description

Technical Field

[0001] This utility model relates to the field of laser head technology, and in particular to a laser head with focusing function. Background Technology

[0002] A laser head is typically used in conjunction with a laser. The laser emits a laser beam, which then enters the laser head. The laser beam is focused by a lens within the laser head and directed onto the object being processed in a point-like pattern. This allows for various targeted processing of the object, such as cutting, welding, and marking.

[0003] When the laser head processes an object, if the distance between the object and the laser head changes when processing different batches of objects, it needs to be refocused to adapt to the change in distance between the object and the laser head and ensure that the processing proceeds normally.

[0004] However, the lenses inside existing laser heads on the market are fixed. When refocusing is needed, the entire laser head must be moved, which makes the adjustment quite troublesome. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art that the lenses inside the laser head are fixed and that the entire laser head must be moved to refocus when refocusing is required. Therefore, this invention proposes a laser head with a focusing function.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A laser head with focusing function includes a connecting block and an adjusting cylinder. An adjusting sleeve is rotatably connected to the bottom of the connecting block, and the inner wall of the adjusting sleeve is provided with a spiral groove. The adjusting cylinder is slidably connected to the bottom of the connecting block, and a snap-fit ​​connector is fixedly connected to the side wall of the adjusting cylinder. A sliding groove is provided on the side wall of the connecting block, and the snap-fit ​​connector passes through the sliding groove and extends into the spiral groove. A lens is located inside the adjusting cylinder.

[0008] Preferably, the number of the card connectors is 2 sets.

[0009] Preferably, the bottom of the connecting block is threaded with a tension sleeve, and the adjusting sleeve is located above the tension sleeve; the tension sleeve can abut against the adjusting sleeve.

[0010] Preferably, the bottom of the connecting block is threaded with a limiting sleeve, which is located inside the tensioning sleeve; the limiting sleeve is in contact with the adjusting sleeve.

[0011] Preferably, a launching tube is inserted into the bottom of the adjusting tube, and the launching tube has a launching port at the bottom; the lens is fixed inside the launching tube.

[0012] Preferably, a drive motor is fixedly connected to the side wall of the connecting block, and the output end of the drive motor is connected to the adjusting sleeve via a toothed belt.

[0013] Preferably, a reflector is fixedly connected to the side wall of the connecting block; the connecting block is provided with a light inlet.

[0014] Compared with the prior art, this utility model provides a laser head with focusing function, which has the following beneficial effects:

[0015] This laser head with focusing function uses an adjustment sleeve and an adjustment cylinder in a coordinated design. The adjustment sleeve rotates to adjust the up and down position of the adjustment cylinder, thus solving the problem of the lens being fixed and allowing for flexible focusing. This avoids the need to move the entire laser head to achieve focusing, greatly improving focusing flexibility to meet the processing needs of different batches of objects. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a laser head with focusing function proposed in this utility model;

[0017] Figure 2 This is a cross-sectional view of a laser head with focusing function proposed in this utility model;

[0018] Figure 3 This utility model proposes a laser head with focusing function. Figure 2 Enlarged view of section A;

[0019] Figure 4 This is a schematic diagram of the spiral groove structure of a laser head with focusing function proposed in this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of a laser head clip connector with focusing function proposed in this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of a laser head slide with focusing function proposed in this utility model.

[0022] In the diagram: 1. Connecting block; 101. Light inlet; 102. Reflector; 2. Adjusting cylinder; 201. Snap connector; 202. Slide groove; 3. Adjusting sleeve; 301. Spiral groove; 4. Emitting cylinder; 401. Emitting port; 5. Tightening sleeve; 501. Limiting sleeve; 6. Lens; 601. Pressure ring; 7. Support plate; 701. Drive motor; 702. Toothed belt. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Example:

[0026] like Figures 1-6 A laser head with focusing function includes a connecting block 1 and an adjusting cylinder 2. A lens 6 is located inside the adjusting cylinder 2. An adjusting sleeve 3 is rotatably connected to the bottom of the connecting block 1. The adjusting sleeve 3 can only rotate at the bottom of the connecting block 1. The inner wall of the adjusting sleeve 3 is provided with a spiral groove 301. The adjusting cylinder 2 is slidably connected to the bottom of the connecting block 1. A snap-fit ​​connector 201 is fixedly connected to the side wall of the adjusting cylinder 2. The side wall of the connecting block 1 is provided with a sliding groove 202. The snap-fit ​​connector 201 passes through the sliding groove 202 and extends into the spiral groove 301.

[0027] The spiral groove 301 is spiral-shaped around the inner wall of the adjusting sleeve 3.

[0028] In the initial position, the snap-fit ​​connector 201 is located in the middle position of the spiral groove 301 in the vertical direction.

[0029] When processing different batches of objects, the distance between the processed object and the laser head changes, requiring the lens 6 to be moved for refocusing. At this time, rotating the adjusting sleeve 3, under the action of the spiral groove 301, drives the adjusting cylinder 2 to move through the clamping joint 201. By reversing the direction of rotation, the adjusting cylinder 2 can be raised or lowered, thereby moving the lens 6 together to achieve refocusing.

[0030] During the movement of the adjusting cylinder 2, the sliding groove 202 effectively prevents the adjusting cylinder 2 from rotating along with the adjusting sleeve 3.

[0031] By using the design of the adjusting sleeve 3 and the adjusting cylinder 2 in cooperation, the adjusting sleeve 3 can rotate to adjust the up and down position of the adjusting cylinder 2, thereby solving the problem of the lens 6 being fixed and allowing it to focus flexibly. This avoids the need to move the entire laser head to achieve focusing, greatly improving focusing flexibility to meet the processing needs of different batches of objects.

[0032] like Figure 4 and Figure 5There are 2 sets of card connectors 201.

[0033] There are two sets of corresponding grooves 202, and each snap-fit ​​connector 201 passes through the corresponding groove 202 and extends into the spiral groove 301.

[0034] The design of two sets of clamps 201 makes the movement of the adjusting cylinder 2 more stable when the adjusting sleeve 3 is rotated.

[0035] like Figures 1-6 The bottom of the connecting block 1 is threaded with a tension sleeve 5, and the adjusting sleeve 3 is located above the tension sleeve 5; the tension sleeve 5 can abut against the adjusting sleeve 3.

[0036] The bottom of the connecting block 1 is provided with external threads, and the inner wall of the elastic sleeve 5 is provided with internal threads, so the two can be connected by threads.

[0037] After rotating the adjusting sleeve 3 and adjusting the position of the lens 6, rotate the tensioning sleeve 5 so that it abuts against the bottom of the adjusting sleeve 3 to generate a restraining force and prevent the adjusting sleeve 3 from rotating accidentally during operation.

[0038] At the same time, the elastic sleeve 5 also serves as a limit to prevent the adjusting sleeve 3 from falling downwards.

[0039] like Figure 3 and Figure 6 The bottom of the connecting block 1 is threadedly connected to a limiting sleeve 501, which is located inside the tensioning sleeve 5; the limiting sleeve 501 is in contact with the adjusting sleeve 3.

[0040] The inner wall of the limiting sleeve 501 is also provided with internal threads, so that it can be threadedly connected to the bottom of the connecting block 1.

[0041] During the installation of the tensioning sleeve 5 and the limiting sleeve 501, first thread the limiting sleeve 501 so that it is in contact with the bottom of the adjusting sleeve 3, and then thread the tensioning sleeve 5.

[0042] When the adjusting sleeve 3 is rotated to adjust the position of the lens 6, the limiting sleeve 501 remains in contact with the bottom of the adjusting sleeve 3 throughout the entire process.

[0043] By limiting the movement of the limiting sleeve 501, even if the tensioning sleeve 5 moves downward and loses contact with the adjusting sleeve 3 during the adjustment process, and loses its restraining force, the adjusting sleeve 3 can be effectively prevented from shaking.

[0044] like Figures 1-2 The bottom of the regulating cylinder 2 is connected to the launching cylinder 4. The inner wall of the regulating cylinder 2 is in contact with the outer wall of the launching cylinder 4. The launching cylinder 4 and the regulating cylinder 2 are fixed by friction. The bottom of the launching cylinder 4 is provided with a launching port 401.

[0045] The lens 6 is fixed inside the launch tube 4; the lens 6 is placed on the stepped surface of the inner top wall of the launch tube 4, and then the pressure ring 601 is connected to the top of the launch tube 4 by thread to press the lens 6 for fixation.

[0046] The inner wall of the top of the launch tube 4 is provided with an internal thread, and the outer wall of the pressure ring 601 is provided with an external thread, and the two can be connected by threads.

[0047] like Figure 1 A drive motor 701 is fixedly connected to the side wall of the connecting block 1; a support plate 7 is fixedly connected to the side wall of the connecting block 1, and the drive motor 701 is fixed on the support plate 7.

[0048] The output end of the drive motor 701 is connected to the adjusting sleeve 3 via a toothed belt 702.

[0049] The output end of the drive motor 701 is fixedly connected to a toothed pulley, and the outer wall of the adjusting sleeve 3 is also provided with toothed grooves. The toothed belt 702 is engaged between the toothed pulley and the outer wall of the adjusting sleeve 3.

[0050] When it is necessary to rotate the adjusting sleeve 3 to adjust the position of the lens 6, after loosening the tension sleeve 5, the drive motor 701 is driven, and the tension sleeve 5 is driven to rotate through the toothed belt 702, so as to achieve precise adjustment through the drive motor 701.

[0051] The drive motor 701 is a servo motor.

[0052] A reflector 102 is fixedly connected to the side wall of the connecting block 1, and the reflector 102 is at a 45° angle; the connecting block 1 is provided with a light inlet 101.

[0053] During operation, the laser enters the connecting block 1 through the light inlet 101, and after being reflected by the reflector 102, it enters the regulating cylinder 2. After passing through the lens 6, it is emitted through the emission port 401 to process the object.

[0054] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A laser head with focusing function, comprising a connecting block (1) and an adjusting cylinder (2), characterized in that: a adjusting sleeve (3) is rotatably connected to the bottom of the connecting block (1), and a spiral groove (301) is arranged on the inner wall of the adjusting sleeve (3); the adjusting cylinder (2) is slidably connected to the bottom of the connecting block (1), and a clamping joint (201) is fixedly connected to the side wall of the adjusting cylinder (2); a sliding groove (202) is arranged on the side wall of the connecting block (1), the clamping joint (201) penetrates through the sliding groove (202) and extends into the spiral groove (301); a lens (6) is arranged in the adjusting cylinder (2).

2. The laser head with focusing function according to claim 1, characterized in that, The number of the clamping joints (201) is two groups.

3. The laser head with focusing function according to claim 1, characterized in that, A tension sleeve (5) is threadedly connected to the bottom of the connecting block (1), and the adjusting sleeve (3) is arranged above the tension sleeve (5); the tension sleeve (5) can abut against the adjusting sleeve (3).

4. The laser head with focusing function according to claim 3, characterized in that, A limiting sleeve (501) is threadedly connected to the bottom of the connecting block (1), and the limiting sleeve (501) is arranged in the tension sleeve (5); the limiting sleeve (501) abuts against the adjusting sleeve (3).

5. The laser head with focusing function according to claim 1, characterized in that, An emitting cylinder (4) is inserted into the bottom of the adjusting cylinder (2), and a emitting port (401) is arranged on the bottom of the emitting cylinder (4); the lens (6) is fixed in the emitting cylinder (4).

6. The laser head with focusing function according to claim 1, characterized in that, A driving motor (701) is fixedly connected to the side wall of the connecting block (1), and the output end of the driving motor (701) is connected with the adjusting sleeve (3) through a toothed belt (702).

7. The laser head with focusing function according to claim 1, characterized in that, A reflector (102) is fixedly connected to the side wall of the connecting block (1); an light inlet (101) is arranged on the connecting block (1).

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