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 inlet channel is arranged in the base block, and the bottom of the base block is connected with a connecting cylinder; a second mounting groove is formed in the top of the connecting cylinder, and the lens is clamped in the second mounting groove; a pressing ring is in threaded connection with the interior of the second mounting groove; a laser opening is formed in the bottom of the connecting cylinder; according to the laser head, when the laser head is detached, the number of detached parts is small, only the connecting cylinder pressing ring needs to be detached, assembling is convenient, the assembling precision is ensured, the lens is clamped in the second mounting groove and cannot shake, the assembling error is further ensured, the laser focusing precision cannot be affected, and the machining precision of a workpiece can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser processing technical field especially relates to a laser head. BACKGROUND

[0002] Since the 20th century, laser has been invented and widely used in various industries due to its ability to release huge energy. Through the cooperation of laser and laser head, the laser beam emitted by the laser is focused on a spot of light by the lens in the laser head, and finally irradiates the object to be processed, such as cutting, welding, marking, etc.

[0003] Therefore, laser is generally used in cooperation with laser head when processing objects. Since the lens inside the laser head has high cleanliness requirements, if there is too much dust, it will affect the focusing of the laser, and thus affect the processing efficiency and quality. Therefore, the lens will be removed and cleaned after long-term use of the laser head.

[0004] However, the existing laser head on the market is too complicated to disassemble and assemble, resulting in large assembly error after cleaning and assembly, which cannot guarantee the assembly precision of the lens, affecting the focusing precision of the laser and thus affecting the processing precision of the workpiece. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the problem of large assembly error after cleaning and assembly in the prior art, which cannot guarantee the assembly precision of the lens, resulting in the precision of laser focusing being affected and thus affecting the processing precision of the workpiece, and proposes a laser head.

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

[0007] A laser head comprises a base block and a lens, the base block is provided with a light inlet channel, and the bottom of the base block is connected with a connecting cylinder; the top of the connecting cylinder is provided with a second mounting groove, and the lens is clamped in the second mounting groove; a compression ring is threadedly connected in the second mounting groove; and the bottom of the connecting cylinder is provided with a laser port.

[0008] Preferably, the top of the base block is fixedly connected with a connecting plate, the connecting plate is provided with a first mounting groove, the first mounting groove is provided with a mirror, and the first mounting groove is threadedly connected with a fixing ring.

[0009] Preferably, the connecting plate is detachably fixed on the top of the base block by bolts.

[0010] Preferably, the connecting barrel is inserted into the bottom of the base block, and a threaded sleeve is sleeved on the connecting barrel; the threaded sleeve is threadedly connected with the bottom of the base block.

[0011] Preferably, the bottom of the base block is provided with an inclined surface, and the threaded sleeve abuts against the inclined surface.

[0012] Preferably, the bottom of the base block is provided with a plurality of groups of notches.

[0013] Preferably, the number of the notches is 3-6 groups.

[0014] Preferably, the side wall of the connecting barrel is fixedly connected with a connecting pipe.

[0015] Compared with the prior art, the utility model provides a laser head with the following beneficial effects:

[0016] The laser head has the advantages that when disassembled, fewer parts need to be disassembled, only the connecting barrel and the compression ring need to be disassembled, thereby facilitating assembly, ensuring assembly precision, and ensuring that the lens cannot shake in the second mounting groove, further ensuring assembly error, thereby ensuring that the precision of laser focusing is not affected, and thereby ensuring the machining precision of the workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structure diagram of a laser head according to the utility model Figure 1 ;

[0018] Figure 2 A structure diagram of a laser head according to the utility model Figure 2 ;

[0019] Figure 3 A sectional view of a laser head according to the utility model

[0020] Figure 4 A laser head according to the utility model Figure 3 An enlarged view of part A of the laser head

[0021] Figure 5 A structure diagram of a laser head according to the utility model Figure 3 .

[0022] In the drawing: 1, base block; 101, light inlet channel; 2, connecting plate; 201, reflector; 202, fixing ring; 203, bolt; 204, first mounting groove; 3, connecting barrel; 301, threaded sleeve; 302, inclined surface; 303, notch; 4, lens; 401, compression ring; 402, second mounting groove; 5, laser port; 6, connecting pipe. DETAILED DESCRIPTION

[0023] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, and not all the embodiments.

[0024] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0025] Embodiment:

[0026] Referring to Figures 1-5 A laser head, comprising a base block 1 and a lens 4, the base block 1 is provided with a light inlet channel 101, and the bottom of the base block 1 is connected with a connecting barrel 3; the top of the connecting barrel 3 is provided with a second mounting groove 402, and the lens 4 is clamped in the second mounting groove 402; the second mounting groove 402 is threadedly connected with a compression ring 401; and the bottom of the connecting barrel 3 is provided with a laser port 5.

[0027] The connecting barrel 3 is hollow and communicates with the light inlet channel 101, the inner wall of the second mounting groove 402 is stepped, the lens 4 is clamped on the stepped inner wall, and then the top is tightly fixed by the compression ring 401.

[0028] The lens 4 and the inside of the second mounting groove 402 are both circular and are attached to each other, so that clamping is achieved.

[0029] The compression ring 401 is hollow, facilitating the passage of laser.

[0030] When disassembling, only the connecting barrel 3 needs to be removed, then the compression ring 401 is rotated, and the lens 4 is removed for cleaning, when assembling, the lens 4 is clamped in the second mounting groove 402, then fixed by the compression ring 401, and then the connecting barrel 3 is fixed at the bottom of the base block 1.

[0031] When disassembling, only the connecting barrel 3 and the compression ring 401 need to be disassembled, which is convenient for assembling, ensures the assembly precision, and the lens 4 cannot shake in the second mounting groove 402, further ensures the assembly error, and then ensures that the precision of laser focusing is not affected, and then the machining precision of the workpiece can be ensured.

[0032] The shape of the base block 1 is square, and the shape of the connecting barrel 3 is circular, which is designed as upper square and lower round, is more integrated, and is designed in a split type, which is beneficial to improving the machining precision in the machining process.

[0033] The base block 1 is fixedly connected with a connecting plate 2, the connecting plate 2 is detachably fixed on the top of the base block 1 through a bolt 203, and the connecting plate 2 is provided with a first mounting groove 204; a reflector 201 is arranged in the first mounting groove 204, and a fixing ring 202 is threadedly connected in the first mounting groove 204, the reflector 201 is clamped in the first mounting groove 204, and then is pressed by the fixing ring 202.

[0034] The reflecting surface of the reflector 201 is communicated with the light inlet channel 101, for example, Figure 3 The light inlet channel 101 is in the shape of a Chinese character “7” and is perpendicular to each other, and the reflector 201 is at an angle of 45°.

[0035] In operation, after the laser enters the light inlet channel 101, the laser is reflected by the reflector 201 and irradiates on the lens 4, and after focusing, the laser is emitted through the laser port 5 to process the workpiece.

[0036] For example, Figures 3-5 The connecting cylinder 3 is inserted into the bottom of the base block 1, and a threaded sleeve 301 is arranged on the connecting cylinder 3; the threaded sleeve 301 is threadedly connected with the bottom of the base block 1.

[0037] The bottom of the base block 1 is provided with external threads, and the threaded sleeve 301 is provided with internal threads, which can be threadedly connected with each other.

[0038] In assembly, the connecting cylinder 3 is inserted into the inner wall of the base block 1, and the threaded sleeve 301 is rotated upwards to be threadedly connected with the base block 1 to be fixed.

[0039] For example, Figure 4 and Figure 5 The bottom of the base block 1 is provided with an inclined surface 302, and the threaded sleeve 301 abuts against the inclined surface 302.

[0040] When the threaded sleeve 301 is threadedly connected with the base block 1, the threaded sleeve 301 extrudes the inclined surface 302, the bottom of the base block 1 is deformed, the base block 1 is extruded with the outer wall of the connecting cylinder 3, and the fixing effect is improved.

[0041] For example, Figure 5 A plurality of notches 303 are formed in the bottom of the base block 1; the number of the notches 303 is 3-6.

[0042] The notches 303 deform the bottom of the base block 1 and extrude the outer wall of the connecting cylinder 3.

[0043] The connecting cylinder 3 is fixedly connected with a connecting pipe 6.

[0044] The connecting pipe 6 is located below the lens 4, and the connecting pipe 6 is connected with an air pump, in the processing process, air is blown into the connecting cylinder 3 through the connecting pipe 6, and the gas is blown out from the emitting port, so that the smoke generated in the processing process is blown away.

[0045] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A laser head, comprising a base block (1) and a lens (4), characterized in that: the base block (1) is provided with a light inlet channel (101), and the bottom of the base block (1) is connected with a connecting cylinder (3); the top of the connecting cylinder (3) is provided with a second mounting groove (402), and the lens (4) is clamped in the second mounting groove (402); the second mounting groove (402) is threadedly connected with a compression ring (401); the bottom of the connecting cylinder (3) is provided with a laser port (5).

2. A laser head as claimed in claim 1, characterized in that the top of the base block (1) is fixedly connected with a connecting plate (2), and the connecting plate (2) is provided with a first mounting groove (204); the first mounting groove (204) is provided with a reflector (201), and the first mounting groove (204) is threadedly connected with a fixing ring (202).

3. A laser head as claimed in claim 2, wherein the connecting plate (2) is detachably fixed on the top of the base block (1) through bolts (203).

4. The laser head of claim 1, wherein the connecting cylinder (3) is inserted into the bottom of the base block (1), and the connecting cylinder (3) is sleeved with a threaded sleeve (301); the threaded sleeve (301) is threadedly connected with the bottom of the base block (1).

5. A laser head as claimed in claim 4, wherein the bottom of the base block (1) is provided with an inclined surface (302), and the threaded sleeve (301) abuts against the inclined surface (302).

6. A laser head as claimed in claim 5, wherein a plurality of notches (303) are formed in the bottom of the base block (1).

7. A laser head as claimed in claim 6, wherein the number of the notches (303) is 3-6 groups.

8. The laser head of claim 1, wherein the sidewall of the connecting cylinder (3) is fixedly connected with a connecting pipe (6).

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