Laser shell and laser equipment
By designing a sliding and threaded fixed-focus assembly in the laser housing, the existing laser engraving machine has solved the problem of cumbersome adjustment of laser focal length, and achieved rapid focus and high-precision focus between laser and workpiece.
Patent Information
- Application Number
- CN202420153560.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-22
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-22
AI Technical Summary
The existing laser engraving machines have too cumbersome methods to adjust the laser focal length, making it difficult to quickly and conveniently achieve the focus between the laser and the workpiece.
A laser housing is designed, including a housing and a fixed focus assembly. The fixed focus assembly includes a fixed focus rod and a fixing part. The fixed part can be rotated and pressed against the housing to define the position of the fixed focus rod and make the fixed focus. The rod is able to slide in the adjustment groove to adjust the distance between the laser and the workpiece.
It realizes the simple and fast laser focus positioning, fast adjustment speed, and improves the focus accuracy and stability of long-term use.
Smart Images
Figure CN222146817U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of laser devices, and in particular to a laser housing and laser equipment. Background Art
[0002] The laser device usually needs to maintain a predetermined distance from the workpiece so that the laser output by the laser device can be focused on the workpiece to facilitate processing of the workpiece. For example, when the laser device is a laser engraving machine and the workpiece is the object to be engraved, a certain distance needs to be maintained between the object to be engraved and the laser engraving machine so that the laser emitted by the laser engraving machine is focused on a point on the surface of the object to be engraved to facilitate engraving the object to be engraved.
[0003] In the related art, a laser engraving machine is equipped with a focusing gasket, which is placed on the object to be engraved, and the laser engraving machine is placed on the focusing gasket. At this time, the distance between the laser engraving machine and the object to be engraved is the laser focusing distance. However, this method of adjusting the focal length of the laser engraving machine is too cumbersome. Utility Model Content
[0004] In view of the above, it is necessary to provide a laser housing and a laser device that are convenient to adjust.
[0005] In a first aspect, the present application provides a laser housing, which includes a shell and a focus assembly. The shell has an output end for outputting laser light, and the shell is provided with an adjustment slot adjacent to the output end and a positioning slot connected to the adjustment slot. The focus assembly includes a focus rod and a fixing portion, the focus rod is slidably connected to the adjustment slot and is located in the adjustment slot, the fixing portion is slidably connected to the positioning slot, the fixing portion is threadedly connected to the focus rod, and is configured to selectively press against the shell to limit the position of the focus rod; when the fixing portion is released from pressing against the shell, the focus rod can at least partially extend from the output end to the outside of the adjustment slot.
[0006] In the above laser housing, when focusing is required, the fixing portion is released from pressing the housing so that the focus rod can slide relative to the housing in the adjustment slot, so that at least part of the focus rod can extend out of the adjustment slot from the output end. Then, by rotating the fixing portion, the fixing portion is pressed against the housing, thereby cooperating with the housing to define the position of the focus rod. The end of the focus rod close to the output end is brought into contact with the surface of the workpiece, thereby positioning the distance between the laser and the workpiece. The laser focusing positioning process is simple and convenient, and the adjustment speed is fast.
[0007] In a possible implementation, the rotation axis of the fixing portion is perpendicular to the sliding direction of the focus rod, and the fixing portion presses against the housing to limit the position of the focus rod.
[0008] In a possible implementation, the positioning groove has a length direction, a width direction, a first position and a second position, and the first position and the second position are spaced apart along the length direction of the positioning groove. The housing is also provided with a first fixing groove and a second fixing groove, the first fixing groove is located at the first position, the second fixing groove is located at the second position, the width directions of the first fixing groove and the second fixing groove are consistent with the width direction of the positioning groove, and are both greater than the width of the positioning groove. The fixing portion is located at the first position and presses against the bottom wall of the first fixing groove, and the fixing portion is slidably connected to the positioning groove along the length direction of the positioning groove. When the fixing portion is located at the second position, it presses against the bottom wall of the second fixing groove, and the focus rod at least partially extends out of the adjustment groove.
[0009] In a possible implementation, a threaded hole is provided on the side wall of the focus fixing rod, and the fixing portion includes a screw segment and a pressure block, the screw segment is threadedly connected to the threaded hole and is slidably connected to the adjustment groove, the pressure block is fixedly connected to the screw segment and presses against the bottom wall of the first fixing groove, and when the pressure block is located at the second position, the pressure block presses against the bottom wall of the second fixing groove.
[0010] In a possible implementation, the fixing portion further includes a rotating piece, the rotating piece is disposed at an end of the pressing block away from the screw segment, and the diameter of the rotating piece is greater than the diameter of the pressing block.
[0011] In a possible implementation manner, the length direction of the second fixing groove is consistent with the length direction of the positioning groove, and the pressing block is slidably connected to the second fixing groove.
[0012] In a possible implementation, a connecting hole is provided at the output end of the housing, the connecting hole is connected to the adjusting slot, and the focusing assembly further includes a positioning rod, the positioning rod is connected to the focusing rod, and the connecting hole is slidably connected.
[0013] In a possible implementation, the focus fixing assembly further includes a positioning portion, which is threadedly connected to the connecting hole, and when the focus fixing rod at least partially extends out of the adjustment slot, the positioning portion contacts the positioning rod.
[0014] In a possible implementation, the focusing assembly further includes a limiting portion, the limiting portion is threadedly connected to the connecting hole, the limiting portion is coaxially arranged with the positioning portion, and the limiting portion presses against a side of the positioning portion close to the output end.
[0015] In a second aspect, the present application provides a laser device, including a laser. The laser device also includes a laser housing, and the laser is located in the laser housing.
[0016] In the above-mentioned laser housing and laser equipment, a fixing part is provided to be threadedly connected with the focus rod, and by rotating the fixing part, the fixing part can be pressed against the outer shell, thereby realizing the limit of the focus rod, and by rotating the fixing part in the opposite direction, the fixing part can be released from pressing against the outer shell, thereby releasing the limit of the focus rod, so that the focus rod can slide to adjust the position. By providing a positioning part, the maximum distance that the focus rod can extend out of the outer shell can be adjusted, and when errors occur, the user can adjust the maximum length that the focus rod can extend by himself, so as to ensure that the laser can be focused on the surface of the workpiece. By providing a limit part to press against the fixed part, the stability of the limit part can be improved, thereby improving the focusing accuracy and the accuracy of long-term use. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a three-dimensional structural diagram of a laser device in one embodiment of the present application.
[0018] Figure 2 yes Figure 1 A three-dimensional structural diagram of the laser device with the middle focus rod in the extended state.
[0019] Figure 3 yes Figure 1 Exploded view of the laser device.
[0020] Figure 4 yes Figure 3 A is an enlarged view of the middle image.
[0021] Figure 5 yes Figure 1 A partially cutaway stereogram of the laser equipment.
[0022] Figure 6 yes Figure 1 A three-dimensional structural diagram of the medium fixed-focus component.
[0023] Figure 7 yes Figure 5 Enlarged view of B.
[0024] Figure 8 yes Figure 1 A partial cutaway stereogram of the laser equipment from another angle.
[0025] Fig. 9 yes Figure 8 Enlarged view of C in the middle.
[0026] Description of main component symbols:
[0027] 1000. Laser equipment;
[0028] 100. Laser;
[0029] 200. Laser housing;
[0030] 10. housing; 11. side plate; 111. adjustment slot; 112. positioning slot; 1121. first position; 1122. second position; 113. first fixing slot; 114. second fixing slot; 115. connecting hole; 12. end plate; 101. output end;
[0031] 20. Focusing assembly; 21. Focusing rod; 211. Threaded hole; 22. Fixing portion; 221. Screw segment; 222. Pressing block; 223. Rotating sheet; 23. Positioning rod; 24. Positioning portion; 25. Limiting portion. DETAILED DESCRIPTION
[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0033] It should be understood that, considering the actual tolerance factor, the term "perpendicular" in the technical solution of this application is used to describe the ideal state between two components. In actual production or use, the two components may be in a state that is approximately perpendicular to each other. The two components described as "perpendicular" may not be absolutely straight lines or planes, but may be roughly straight lines or planes. From a macroscopic point of view, the components can be considered "straight lines" or "planes" if the overall extension direction is a straight line or a plane.
[0034] See also Figure 1 and Figure 2 This embodiment provides a laser device 1000, which is used to output laser light, and the laser light is focused on the surface of a workpiece, so as to process the workpiece. The laser device 1000 includes, but is not limited to, a laser engraving machine, a laser welding machine, a laser marking machine, a laser cutting machine, and other equipment used to process a workpiece. This embodiment and the following embodiments are described by taking the laser device 1000 as a laser engraving machine as an example.
[0035] The laser device 1000 is approximately rectangular. On this basis, in order to facilitate the description of each embodiment below, an XYZ coordinate system is established, and the thickness direction of the laser device 1000 is defined as the X-axis direction, the width direction of the laser device 1000 is defined as the Y-axis direction, and the height direction of the laser device 1000 is defined as the Z-axis direction. The laser output by the laser device 1000 is parallel to the Z-axis. It can be understood that the coordinate system setting of the laser device 1000 can be flexibly set according to actual needs, and no specific limitation is made here. In some other embodiments, the shape of the laser device 1000 can also be a square flat plate, a circular flat plate, an elliptical flat plate, etc., which are not specifically limited here. It should be noted that the coordinate system is only for the convenience of understanding the laser device 1000, and does not further limit the laser device 1000.
[0036] The laser device 1000 includes a laser 100 and a laser housing 200. The laser 100 is located in the laser housing 200. The laser output by the laser 100 can be emitted from the laser housing 200 to process the workpiece. The laser housing 200 can contact the surface of the workpiece, thereby positioning the distance between the laser 100 and the workpiece to complete the focus, so that the laser output by the laser 100 can be focused on the surface of the workpiece.
[0037] The laser housing 200 includes an outer shell 10 and a focus assembly 20 . The laser 100 is located in the outer shell 10 . The focus assembly 20 is connected to the outer shell 10 . The focus assembly 20 can contact the workpiece to position the distance between the laser 100 and the workpiece to complete focusing.
[0038] See also Figure 2 , Figure 3 , Figure 4 and Figure 5 The housing 10 has an output end 101, and the laser output by the laser 100 is output from the output end 101. The housing 10 is provided with an adjustment slot 111 adjacent to the output end 101 and a positioning slot 112 connected to the adjustment slot 111. The focus assembly 20 includes a focus rod 21 and a fixing portion 22. The focus rod 21 is slidably connected to the adjustment slot 111 and is located in the adjustment slot 111. The fixing portion 22 is slidably connected to the positioning slot 112. The fixing portion 22 is threadedly connected to the focus rod 21 and is configured to selectively press against the housing 10 to limit the position of the focus rod 21. When the fixing portion 22 is released from pressing against the housing 10, the focus rod 21 can slide relative to the housing 10, so that the focus rod 21 can at least partially extend from the output end 101 to the outside of the adjustment slot 111.
[0039] It should be noted that the focus rod 21 has a retracted state (such as Figure 1 ) and the extended state at least partially extending out of the adjustment slot 111 (as shown Figure 2As shown), when not otherwise specified, the present application is described with the focus lever 21 being in a retracted state.
[0040] When focusing is required, the fixing part 22 is released from pressing against the housing 10, so that the focus rod 21 can slide relative to the housing 10 in the adjustment slot 111, so that at least part of the focus rod 21 can extend out of the adjustment slot 111 from the output end 101. Then, by rotating and tightening the fixing part 22, the fixing part 22 is pressed against the housing 10, so that the fixing part 22 cooperates with the housing 10 to define the position of the focus rod 21. The end of the focus rod 21 close to the output end 101 is brought into contact with the surface of the workpiece, so as to locate the distance between the laser 100 and the workpiece. The process of laser focusing positioning is simple and fast, and the adjustment speed is fast.
[0041] The process of receiving the focus rod 21 back into the adjustment slot 111 can be: rotating and loosening the fixing part 22, releasing the fixing part 22 from pressing against the outer shell 10, thereby releasing the position limitation of the focus rod 21, sliding the focus rod 21 so that the focus rod 21 is completely received back into the adjustment slot 111, and then rotating the fixing part 22 again, and the fixing part 22 presses against the outer shell 10, so that the focus rod 21 can be stably located in the adjustment slot 111.
[0042] See also Figure 3 and Figure 5 The housing 10 includes four side panels 11 and two end panels 12. The four side panels 11 are vertically arranged and connected end to end to form a substantially rectangular housing 10. The two end panels 12 are horizontally arranged and spaced apart along the Z-axis direction and are correspondingly connected to opposite ends of the side panels 11.
[0043] See also Figure 3 and Figure 4 The adjustment slot 111 and the positioning slot 112 are located on the same side panel 11. For the convenience of subsequent explanation, the adjustment slot 111 and the positioning slot 112 will be taken as an example where they are located on the side panel 11 perpendicular to the X-axis. It should be noted that the positions of the adjustment slot 111 and the positioning slot 112 are not limited. For example, the adjustment slot 111 may be located on one side panel 11, and the positioning slot 112 may be located on another adjacent side panel 11, or both the adjustment slot 111 and the positioning slot 112 may be located on the side panel 11 perpendicular to the Y-axis.
[0044] The opening of the adjustment slot 111 is located at the output end 101, that is, the bottom of the side plate 11, so that the focus rod 21 can extend out of the adjustment slot 111 from the output end 101. The opening of the positioning slot 112 is located on the outer side of the side plate 11 and on the vertical side surface, so that the fixing portion 22 can be partially located outside the housing 10, so as to facilitate the adjustment of the position of the focus rod 21 through the fixing portion 22, and the positioning slot 112 does not penetrate the bottom of the side plate 11, so as to prevent the focus rod 21 from sliding out of the adjustment slot 111 from the bottom, resulting in the separation of the focus rod 21 from the housing 10.
[0045] See also Figure 4 and Figure 5 In some embodiments, the rotation axis of the fixing portion 22 is perpendicular to the sliding direction of the focus rod 21, that is, parallel to the X-axis. The fixing portion 22 rotates in the loosening direction, so that the fixing portion 22 as a whole moves along the X-axis toward the direction of leaving the positioning groove 112, so that the fixing portion 22 is separated from the housing 10, and the limit of the focus rod 21 is released.
[0046] By threading the fixing portion 22 and the focus rod 21 to limit the position of the focus rod 21, the position of the focus rod 21 can be limited at any sliding position of the focus rod 21, thereby achieving stepless adjustment of the focus rod 21 and improving the flexibility of the position of the focus rod 21.
[0047] See also Figure 4 , Figure 6 and Figure 7 In some embodiments, the positioning groove 112 has a length direction, a width direction, a first position 1121, and a second position 1122. The length direction of the positioning groove 112 is parallel to the Z axis, the width direction is parallel to the Y axis, and the first position 1121 and the second position 1122 are spaced apart along the length direction of the positioning groove 112. The fixing portion 22 is located at the first position 1121, and the focus rod 21 is located in the adjustment groove 111. When the fixing portion 22 moves downward along the Z axis direction to the second position 1122, the lower end of the focus rod 21 extends out of the housing 10.
[0048] The surface of the side plate 11 provided with the positioning groove 112 in the housing 10 is also provided with a first fixing groove 113 and a second fixing groove 114, the first fixing groove 113 is located at a first position 1121, and the second fixing groove 114 is located at a second position 1122. The width directions of the first fixing groove 113 and the second fixing groove 114 are consistent with the width direction of the positioning groove 112, and are both larger than the width of the positioning groove 112, and the first fixing groove 113 and the second fixing groove 114 do not penetrate the side plate 11.
[0049] The fixing portion 22 is located at the first position 1121 and presses against the bottom wall of the first fixing groove 113. The fixing portion 22 is slidably connected with the positioning groove 112 along the Z-axis direction. When the fixing portion 22 is located at the second position 1122, it presses against the bottom wall of the second fixing groove 114. By setting the shapes of the first fixing groove 113 and the second fixing groove 114 to match the fixing portion 22, when the fixing portion 22 is located at the first position 1121 or the second position 1122, the corresponding first fixing groove 113 or the second fixing groove 114 can be positioned with the fixing portion 22, which is conducive to improving the position accuracy of the focus rod 21. Specifically, the side wall of the fixing portion 22 contacts the side wall of the first fixing groove 113, thereby positioning the fixing portion 22. When the fixing portion 22 moves to the second position 1122, the side wall of the fixing portion 22 contacts the side wall of the second fixing groove 114 to position the fixing portion 22.
[0050] In some embodiments, the second fixing groove 114 has a length direction, and the length direction of the second fixing groove 114 is consistent with the length direction of the positioning groove 112, and the fixing portion 22 is at least partially slidably connected to the second fixing groove 114. By setting the second fixing groove 114 and the adjustment groove 111 to be slidably connected to the fixing portion 22, the sliding stability of the fixing portion 22 can be improved, and the fixing portion 22 can press against multiple positions of the bottom wall of the second fixing groove 114 to facilitate adjusting the extension amount of the focus rod 21 out of the housing 10.
[0051] In some embodiments, the focus rod 21 is provided with a threaded hole 211, and the threaded hole 211 is located on the side wall of the focus rod 21. The fixing portion 22 has an external thread, and the fixing portion 22 is threadedly connected to the threaded hole 211, so that when the fixing portion 22 is rotated, the position of the fixing portion 22 in the X-axis direction can be adjusted. It can be understood that the threaded hole 211 is not limited to being provided on the focus rod 21. In some other embodiments, the side wall of the focus rod 21 may also be provided with a rod body including an external thread, and the fixing portion 22 may be provided with a threaded hole 211.
[0052] Optionally, the fixing portion 22 includes a screw segment 221 and a pressing block 222. The screw segment 221 is threadedly connected to the threaded hole 211 and is slidably connected to the adjustment groove 111. The pressing block 222 is fixedly connected to the screw segment 221 and presses against the bottom wall of the first fixing groove 113. When the pressing block 222 is located at the second position 1122, the pressing block 222 presses against the bottom wall of the second fixing groove 114.
[0053] The shape of the pressing block 222 is adapted to the shape of the first fixing groove 113 and the second fixing groove 114 to improve the position stability of the pressing block 222 when it is located at the first position 1121 or the second position 1122. Specifically, the pressing block 222 is cylindrical in shape, and the width along the Y-axis direction, that is, the diameter of the pressing block 222, matches the width of the first fixing groove 113 and the second fixing groove 114 along the Y-axis direction, so that the groove wall of the first fixing groove 113 contacts the side wall of the pressing block 222, and when the fixing portion 22 is located at the second position 1122, the groove wall of the second fixing groove 114 contacts the side wall of the pressing block 222, thereby improving the position stability of the fixing portion 22. Optionally, the pressing block 222 is slidably connected to the second fixing groove 114 to improve the sliding stability.
[0054] In some embodiments, the fixing portion 22 further includes a rotating piece 223 , which is disposed at one end of the pressing block 222 away from the screw segment 221 . The rotating piece 223 is circular in shape, and its diameter is greater than that of the pressing block 222 .
[0055] By setting the diameter of the rotating piece 223 to be larger than the diameter of the pressing block 222 , the contact area is increased, which makes it easier for the user to twist the rotating piece 223 and adjust the position of the focus lever 21 more conveniently.
[0056] See also Figure 8 and Fig. 9 In some embodiments, a communication hole 115 is provided on the side plate 11 of the housing 10 on which the adjustment slot 111 is provided, the communication hole 115 is adjacent to the output end 101, and the communication hole 115 is connected to the adjustment slot 111. The focus assembly 20 further includes a positioning rod 23, which is connected to the focus rod 21 and is slidably connected to the communication hole 115. Optionally, the length direction of the positioning rod 23 extends along the Y-axis direction so that the positioning rod 23 can extend into the communication hole 115.
[0057] The positioning rod 23 slides in the communicating hole 115 , the focus rod 21 slides in the adjusting groove 111 , and the fixing portion 22 slides in the positioning groove 112 , so as to improve the sliding stability.
[0058] In some embodiments, the opening of the communication hole 115 is located at the output end 101, that is, the communication hole 115 passes through the lower end of the side plate 11. The focus assembly 20 further includes a positioning portion 24, which is located in the communication hole 115 and is threadedly connected to the communication hole 115. When the focus rod 21 at least partially extends out of the adjustment slot 111, that is, when the fixing portion 22 is located at the second position 1122, the upper end of the positioning portion 24 contacts the positioning rod 23.
[0059] The focus rod 21 is positioned by contacting the positioning portion 24 with the positioning rod 23. Since the positioning portion 24 is threadedly connected to the connecting hole 115, the position of the positioning portion 24 along the Z-axis direction can be adjusted by rotating the positioning portion 24, thereby adjusting the maximum length of the focus rod 21 that can be extended out of the housing 10. Therefore, when an error occurs or other circumstances require adjustment of the length of the focus rod 21 extending out of the housing 10, the positioning portion 24 can be rotated to adjust the position of the positioning portion 24 in the Z-axis direction, and the positioning rod 23 contacts the positioning portion 24 to limit the maximum length of the focus rod 21 that can be extended. After adjusting the position of the positioning portion 24, the focus rod 21 limit is adjusted by loosening and tightening the fixing portion 22, thereby improving the position accuracy of the focus rod 21 extending out of the housing 10. Optionally, the positioning portion 24 is an internal and external thread nut.
[0060] In some embodiments, the focusing assembly 20 also includes a limit portion 25, which is threadedly connected to the connecting hole 115, and the limit portion 25 is coaxially arranged with the positioning portion 24. The limit portion 25 presses against the side of the positioning portion 24 close to the output end 101, that is, the limit portion 25 is located below the positioning portion 24.
[0061] By pressing the positioning part 24 with the limiting part 25, the stability of the positioning part 24 can be improved, so that the position accuracy of the positioning rod 23 in contact with the positioning part 24 can be improved, which is conducive to improving the focusing accuracy and thus improving the workpiece processing effect. In addition, the displacement of the positioning part 24 during long-term use can be reduced, which is conducive to improving the focusing accuracy during long-term use. Optionally, the limiting part 25 is an internal and external thread nut with the same diameter as the positioning part 24.
[0062] In summary, in the laser housing 200 and the laser device 1000 of the embodiment of the present application, the fixing portion 22 is provided to be threadedly connected with the focus rod 21, and the fixing portion 22 can be rotated to press the fixing portion 22 against the housing 10, thereby realizing the limit of the focus rod 21. The fixing portion 22 can be rotated in the opposite direction to release the fixing portion 22 from pressing against the housing 10, thereby releasing the limit of the focus rod 21, so that the focus rod 21 can slide to adjust the position. The positioning portion 24 can be provided to adjust the maximum distance that the focus rod 21 can extend out of the housing 10, and when errors and other reasons occur, the user can adjust the maximum length that the focus rod 21 can extend by himself, so as to ensure that the laser can be focused on the surface of the workpiece. The limiting portion 25 is provided to press against the fixing portion 22, so that the stability of the limiting portion 25 can be improved, thereby improving the focusing accuracy and the accuracy of long-term use.
[0063] Obviously, the embodiments described above are only part of the embodiments of the present application, rather than all of the embodiments. The present application is not limited to the details of the above embodiments, and any appropriate changes or modifications made by ordinary technicians in the relevant technical field are deemed to be within the patent scope of the present application.
Claims
1. A laser housing, characterized in that: The laser housing comprises: A housing, wherein the housing has an output end for outputting laser light, and the housing is provided with an adjustment groove adjacent to the output end and a positioning groove communicating with the adjustment groove; A focus fixing assembly, wherein the focus fixing assembly includes a focus fixing rod and a fixing portion, wherein the focus fixing rod is slidably connected to the adjustment slot and is located in the adjustment slot, wherein the fixing portion is slidably connected to the positioning slot, wherein the fixing portion is threadedly connected to the focus fixing rod and is configured to selectively press against the outer shell to limit the position of the focus fixing rod; when the fixing portion is released from pressing against the outer shell, the focus fixing rod can at least partially extend from the output end out of the adjustment slot.
2. The laser housing according to claim 1, characterized in that: The rotation axis of the fixing portion is perpendicular to the sliding direction of the focus rod, and the fixing portion presses against the housing to limit the position of the focus rod.
3. The laser housing according to claim 2, characterized in that: The positioning groove has a length direction, a width direction, a first position and a second position, and the first position and the second position are arranged at intervals along the length direction of the positioning groove; The housing is further provided with a first fixing groove and a second fixing groove, the first fixing groove is located at the first position, the second fixing groove is located at the second position, and the width directions of the first fixing groove and the second fixing groove are consistent with the width direction of the positioning groove, and are both greater than the width of the positioning groove; The fixing portion is located at the first position and presses against the bottom wall of the first fixing groove. The fixing portion is slidably connected to the positioning groove along the length direction of the positioning groove. When the fixing portion is located at the second position, it presses against the bottom wall of the second fixing groove, and the focusing rod at least partially extends out of the adjustment groove.
4. The laser housing according to claim 3, characterized in that: A threaded hole is provided on the side wall of the focus fixing rod, and the fixing part includes a screw segment and a pressing block. The screw segment is threadedly connected to the threaded hole and is slidably connected to the adjustment groove. The pressing block is fixedly connected to the screw segment and presses against the bottom wall of the first fixing groove. When the pressing block is located at the second position, the pressing block presses against the bottom wall of the second fixing groove.
5. The laser housing according to claim 4, characterized in that: The fixing portion further comprises a rotating piece, which is arranged at one end of the pressing block away from the screw section, and the diameter of the rotating piece is greater than the diameter of the pressing block.
6. The laser housing according to claim 4, characterized in that: The length direction of the second fixing groove is consistent with the length direction of the positioning groove, and the pressing block is slidably connected to the second fixing groove.
7. The laser housing according to claim 1, characterized in that: A connecting hole is provided at the output end of the housing, and the connecting hole is connected to the adjusting groove. The focus fixing assembly also includes a positioning rod, and the positioning rod is connected to the focus fixing rod and is slidably connected to the connecting hole.
8. The laser housing according to claim 7, characterized in that: The focus fixing assembly further includes a positioning portion, which is threadedly connected to the communicating hole. When the focus fixing rod at least partially extends out of the adjusting groove, the positioning portion contacts the positioning rod.
9. The laser housing according to claim 8, characterized in that: The focus fixing assembly further includes a limiting portion, which is threadedly connected to the communicating hole, is coaxially arranged with the positioning portion, and presses against a side of the positioning portion close to the output end.
10. A laser device, comprising a laser, characterized in that: The laser device further comprises a laser housing according to any one of claims 1 to 9, wherein the laser is located in the laser housing.