Laser head

Abstract

The utility model discloses a laser head, which belongs to the technical field of laser processing and comprises a base block and a lens, a light reflecting channel is arranged in the base block, a notch is arranged on the base block, a lifting cylinder is in threaded connection with the interior of the light reflecting channel, and the lifting cylinder is positioned in the notch; the lens is located at the top of the lifting cylinder; through the design that the base block is provided with the notch and the lifting cylinder can rotate and lift up and down, the lens can be quickly dismounted without dismounting the whole shell, so that the dismounting efficiency can be improved, the subsequent mounting efficiency can be synchronously improved, the number of dismounted parts is small, and the mounting cost is reduced after mounting. And the influence of disassembly on the laser focusing precision is also reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of laser processing, in particular to a laser head. Background Art

[0002] Since the laser itself can release huge energy, it has been widely used in all walks of life since its invention in the 20th century. Through the cooperation of a laser and a laser head, the laser emits a laser beam, and then the laser beam enters the laser head. After passing through the lens in the laser head, the laser beam is focused on a dot-shaped spot of light, and finally irradiated onto the object to be processed, performing various targeted processing on the object, such as cutting, welding, marking, etc.

[0003] Therefore, when the laser processes an object, it generally cooperates with the laser head. Since the lens inside the laser head has high requirements for cleanliness, if there is a lot of dust, it will affect the focusing of the laser, and thus affect the processing efficiency and quality. Therefore, after the laser head is used for a long time, the lens will be removed and cleaned.

[0004] However, for the existing laser heads on the market currently, it is very troublesome to disassemble the lens. After being used for a long time, if the lens needs to be disassembled, the entire outer shell of the laser head needs to be disassembled to remove the lens, resulting in difficult disassembly. Moreover, because there are too many disassembled parts, the precision of laser focusing will also be affected after cleaning and assembly, thus affecting the service life. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problem that it is very troublesome to disassemble the lens in the prior art, and a laser head is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A laser head includes a base block and a lens. A reflective channel is provided in the base block, a notch is provided on the base block, a lifting cylinder is threadedly connected in the reflective channel, and the lifting cylinder is located in the notch; the lens is located at the top of the lifting cylinder.

[0008] Preferably, it further includes a connecting ring, and the connecting ring rotates on the top of the lifting cylinder; the lens is snap-fitted on the top of the connecting ring.

[0009] Preferably, the connecting ring is composed of a small ring and a large ring; a stepped surface is formed between the small ring and the large ring; a second groove is opened at the top of the small ring, and the bottom of the lens is snap-fitted in the second groove.

[0010] Preferably, a first groove is opened at the bottom of the large ring, and the connecting ring is snap-fitted on the top of the lifting cylinder through the first groove.

[0011] Preferably, a light incident channel is further provided at the top of the base block, and a reflecting mirror is arranged in the light incident channel.

[0012] Preferably, an adjusting plate is detachably connected to the top of the base block, and the reflecting mirror is fixedly connected to the adjusting plate.

[0013] Preferably, a knob cover is threadedly connected to the adjusting plate, and the reflecting mirror is fixed inside the knob cover.

[0014] Preferably, the adjusting plate is connected to the top of the base block through three groups of bolts, and a spring is sleeved on each group of bolts, and the spring is located between the adjusting plate and the base block.

[0015] Preferably, a transmitting cylinder is connected to the bottom of the base block, and a transmitting port is provided at the bottom of the transmitting cylinder.

[0016] Preferably, a pipeline is connected to the side wall of the transmitting cylinder.

[0017] Compared with the prior art, the present utility model provides a laser head, which has the following beneficial effects:

[0018] 1. For this laser head, by providing a notch on the base block and the design of the lifting cylinder that can be rotated and lifted up and down, the lens can be quickly disassembled without disassembling the entire housing, which not only improves the disassembly efficiency, but also synchronously improves the subsequent installation efficiency. Moreover, with fewer disassembled parts, it also reduces the influence on the laser focusing accuracy due to disassembly after installation.

[0019] 2. For this laser head, by clamping the lens on the top of the connecting ring and then rotating the connecting ring on the top of the lifting cylinder, the lens will not rotate with the lifting cylinder during installation or disassembly, thereby avoiding friction between the lens and the base block and preventing scratches on the lens surface.

[0020] 3. For this laser head, when the edge of the top of the lens abuts against the base block and is fixed at the bottom of the reflecting channel above the notch, the step surface is simultaneously attached to the base block, avoiding excessive rotation of the lifting cylinder during installation, so that the force borne by the lens is too large and damage occurs, and improving the stability during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a laser head proposed by the present utility model Figure 1 ;

[0022] Figure 2 is a schematic structural diagram of a laser head proposed by the present utility model Figure 2 ;

[0023] Figure 3 is a schematic structural diagram of a laser head proposed by the present utility model Figure 3 ;

[0024] Figure 4 Structural schematic of a laser head proposed by the present utility model Figure 4 ;

[0025] Figure 5 Structural schematic of a laser head proposed by the present utility model Figure 5 ;

[0026] Figure 6 Structural schematic of a laser head connection ring proposed by the present utility model Figure 1 ;

[0027] Figure 7 Structural schematic of a laser head connection ring proposed by the present utility model Figure 2 ;

[0028] Figure 8 Structural schematic of a laser head adjustment plate proposed by the present utility model Figure 1 ;

[0029] Figure 9 Structural schematic of a laser head adjustment plate proposed by the present utility model Figure 2 ;

[0030] Figure 10 Front view of a laser head proposed by the present utility model;

[0031] Figure 11 A laser head proposed by the present utility model Figure 10 Enlarged view of part A in

[0032] In the figure: 1, base block; 101, external connection plate; 102, notch; 2, light inlet channel; 201, reflecting mirror; 3, adjustment plate; 301, concave hole; 302, spring; 303, knob cover; 304, washer; 4, light reflecting channel; 401, lifting cylinder; 402, lens; 403, connection ring; 5, emission cylinder; 501, emission port; 502, interface; 503, pipeline; 6, small ring; 601, large ring; 602, step surface; 603, first groove; 604, second groove. Specific implementation manners

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0034] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0035] Embodiment 1:

[0036] Referring to Figures 1 - 11 , a laser head includes a base block 1 and a lens 402. A reflective channel 4 is provided inside the base block 1, and a notch 102 is provided on the base block 1. As shown in Figure 4 and Figure 5 , the notch 102 divides the reflective channel 4 into upper and lower parts. A lifting cylinder 401 is threadedly connected inside the reflective channel 4. The lifting cylinder 401 is located inside the notch 102. As shown in Figure 3 and Figure 4 , the lower half of the outer wall of the lifting cylinder 401 is provided with an external thread, and the inner wall of the reflective channel 4 below the notch 102 is provided with a matching internal thread, which can be threadedly connected to each other. The upper half of the outer wall of the lifting cylinder 401 is located inside the notch 102 and is provided with anti-slip lines for easy manual rotation.

[0037] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 10 , Figure 11 , when installing the lens 402, place the lens 402 on the top of the lifting cylinder 401, and then manually rotate the lifting cylinder 401. Under the action of the thread, the lifting cylinder 401 moves upward, making the lens 402 abut against the base block 1, achieving the purpose of fixing the lens 402. At this time, the lens 402 is located at the bottom of the reflective channel 4 above the notch 102.

[0038] The lens 402 is located on the top of the lifting cylinder 401. A transmitting cylinder 5 is connected to the bottom of the base block 1. A transmitting port 501 is provided at the bottom of the transmitting cylinder 5. The outer shapes of the lifting cylinder 401 and the transmitting cylinder 5 are both hollow rotating bodies, and their central axes are collinear with the central axis of the reflective channel 4.

[0039] During operation, the laser enters the reflective channel 4 from the top, irradiates on the lens 402, and after being focused by the lens 402, the laser converges into a dot-shaped light spot and enters the transmitting cylinder 5, and finally exits from the transmitting port 501 and irradiates on the object to be processed to process the object, such as cutting, welding, marking, etc.

[0040] After long-term use, when the lens 402 needs to be disassembled for dust cleaning, at this time, the lifting cylinder 401 needs to be manually rotated to move the lifting cylinder 401 downward and retract it into the notch 102 below the notch 102, so that the lens 402 is exposed, and then the lens 402 can be manually removed through the notch 102 for cleaning.

[0041] By setting the notch 102 on the base block 1 and designing the lifting cylinder 401 to be rotatable up and down, the lens 402 can be quickly disassembled without disassembling the entire housing, which not only improves the disassembly efficiency, but also synchronously improves the subsequent installation efficiency. And with fewer disassembled parts, it also reduces the impact on the laser focusing accuracy due to disassembly after installation.

[0042] Such as Figures 4 - 7 , Figures 10 - 11 , it further includes a connecting ring 403, and the connecting ring 403 rotates on the top of the lifting cylinder 401; the lens 402 is clamped on the top of the connecting ring 403.

[0043] By clamping the lens 402 on the top of the connecting ring 403 and then rotating the connecting ring 403 on the top of the lifting cylinder 401, when installing or disassembling, the lens 402 will not rotate with the lifting cylinder 401, thereby avoiding the friction between the lens 402 and the base block 1 and preventing the surface of the lens 402 from being scratched.

[0044] Such as Figures 4 - 7 , Figures 10 - 11 , the connecting ring 403 is composed of a small ring 6 and a large ring 601. During installation, the small ring 6 is on the upper side and the large ring 601 is on the lower side; a stepped surface 602 is formed between the small ring 6 and the large ring 601; a second groove 604 is opened at the top of the small ring 6, and the bottom of the lens 402 is clamped in the second groove 604.

[0045] Such as Figure 11 , clamping the lens 402 in the second groove 604 is convenient for the lens 402 to displace during installation, which affects the focusing of the laser beam. After installation, when the top edge of the lens 402 abuts against the base block 1 and is fixed at the bottom of the light reflection channel 4 above the notch 102, the stepped surface 602 is simultaneously attached to the base block 1, avoiding excessive rotation of the lifting cylinder 401 during installation, so that the force borne by the lens 402 is too large and damage occurs, and improving the stability during installation.

[0046] Such as Figure 7 and Figure 11 , a first groove 603 is opened at the bottom of the large ring 601, and the connecting ring 403 is clamped on the top of the lifting cylinder 401 through the first groove 603.

[0047] During the installation process, through the first groove 603, the connecting ring 403 can only rotate circumferentially at the top of the lifting cylinder 401 and will not displace, further ensuring the stability of the installation after disassembly.

[0048] Embodiment 2:

[0049] Referring to Figures 1 - 11 , which is basically the same as Embodiment 1. On the basis of Embodiment 1, the overall technical solution is further optimized to improve the working efficiency of laser processing.

[0050] A light inlet channel 2 is also provided at the top of the base block 1, and a reflecting mirror 201 is provided in the light inlet channel 2.

[0051] The light inlet channel 2 is horizontally arranged, the reflecting channel 4 is vertically arranged, the reflecting mirror 201 is located between the light inlet channel 2 and the reflecting channel 4, and is arranged at 45°.

[0052] The laser emits a laser beam that enters through the light inlet channel 2 and enters the reflecting channel 4 after being reflected by the reflecting mirror 201.

[0053] As Figures 8 - 10 , an adjusting plate 3 is detachably connected to the top of the base block 1, and the reflecting mirror 201 is fixedly connected to the adjusting plate 3. Through the detachable design, after long-term operation, the adjusting plate 3 can also be detached, and the reflecting mirror 201 can be taken out for cleaning to remove the surface dust.

[0054] A knob cover 303 is threadedly connected to the adjusting plate 3, the reflecting mirror 201 is fixed in the knob cover 303, and a through hole is provided on the adjusting plate 3, and the knob cover 303 is threadedly connected in the through hole.

[0055] At this time, if it is necessary to take out the reflecting mirror 201 for cleaning, only the knob cover 303 needs to be rotated, and there is no need to detach the adjusting plate 3.

[0056] In order to better fix the reflecting mirror 201, after fixing the reflecting mirror 201 in the knob cover 303, a washer 304 is placed, and the washer 304 is flush with the knob cover 303. As Figure 10 , after it is installed on the adjusting plate 3, the reflecting mirror 201 is better fixed through the washer 304 to avoid shaking.

[0057] As Figure 8 and Figure 9 , the adjusting plate 3 is connected to the top of the base block 1 by three groups of bolts, and a spring 302 is sleeved on each group of bolts. The spring 302 is located between the adjusting plate 3 and the base block 1.

[0058] The three groups of bolts are not on the same straight line.

[0059] There are three groups of concave holes 301 provided at the top of the base block 1. Each group of springs 302 is located within the corresponding concave hole 301, and the other ends of the springs 302 all exert forces on the adjusting plate 3.

[0060] After the rearview mirror 201 is installed, if the rearview mirror 201 needs to be adjusted, by rotating one or more of the three groups of bolts, the purpose of adjusting the angle of the rearview mirror 201 can be achieved through the forces exerted by the springs 302 at the bottom, so that after the laser beam irradiates the rearview mirror 201, it can be reflected into the reflection channel 4.

[0061] Such as Figure 1 and Figure 10 , a pipe 503 is connected to the side wall of the emission cylinder 5. The pipe 503 is connected to the side wall of the emission cylinder 5 through an interface 502 and is in communication with the reflection channel 4.

[0062] The pipe 503 can be externally connected to a negative pressure pump for suction. When the laser processes an object, the generated fumes can be sucked away.

[0063] Such as Figures 1 - 2 , according to the on-site environment and actual requirements, an external plate 101 can also be fixedly connected to the side wall of the base block 1 for connecting to other devices.

[0064] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A laser head, comprising a base block (1) and a lens (402), wherein a reflective channel (4) is provided in the base block (1), and it is characterized in that: A notch (102) is provided on the base block (1), a lifting cylinder (401) is threadedly connected in the reflective channel (4), and the lifting cylinder (401) is located in the notch (102); The lens (402) is located at the top of the lifting cylinder (401).

2. The laser head according to claim 1, wherein It further includes a connecting ring (403), and the connecting ring (403) rotates on the top of the lifting cylinder (401); The lens (402) is snap-fitted on the top of the connecting ring (403).

3. A laser head according to claim 2, characterized in that, The connecting ring (403) is composed of a small ring (6) and a large ring (601); A stepped surface (602) is formed between the small ring (6) and the large ring (601); A second groove (604) is provided at the top of the small ring (6), and the bottom of the lens (402) is snap-fitted in the second groove (604).

4. A laser head according to claim 3, characterized in that, A first groove (603) is provided at the bottom of the large ring (601), and the connecting ring (403) is snap-fitted on the top of the lifting cylinder (401) through the first groove (603).

5. A laser head according to claim 1, characterized in that, A light inlet channel (2) is further provided at the top of the base block (1), and a reflector (201) is provided in the light inlet channel (2).

6. A laser head according to claim 5, wherein, A regulating plate (3) is detachably connected to the top of the base block (1), and the reflector (201) is fixedly connected to the regulating plate (3).

7. A laser head according to claim 6, characterized in that, A knob cover (303) is threadedly connected to the regulating plate (3), and the reflector (201) is fixed in the knob cover (303).

8. A laser head according to claim 6, characterized in that, The regulating plate (3) is connected to the top of the base block (1) by three groups of bolts, and a spring (302) is sleeved on each bolt, and the spring (302) is located between the regulating plate (3) and the base block (1).

9. A laser head according to claim 1, characterized in that, The bottom of the base block (1) is connected to a transmitting cylinder (5), and a transmitting port (501) is provided at the bottom of the transmitting cylinder (5).

10. A laser head according to claim 9, characterized in that, A pipeline (503) is connected to the side wall of the transmitting cylinder (5).

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