A laser processing apparatus

Abstract

The utility model relates to a kind of laser processing equipment.It includes: workbench, the side of workbench is equipped with taper head fixed seat, taper head fixed seat is equipped with multiple taper head insertion hole;Laser processing head, including laser lens barrel, the lower end of laser lens barrel is connected with taper head by movable connecting member, the upper end of taper head is equipped with adjusting ring, the middle part of adjusting ring is equipped with inner convex part;The upper end of taper head is equipped with perforation, the side of laser lens barrel is equipped with clamping hole;Delay reset elastic member is equipped between adjusting ring and the lower end of taper head;The outside of laser lens barrel is equipped with adjusting unit, adjusting unit is equipped with the moving space for laser lens barrel moves and the first elastic member for driving laser lens barrel to move downwards, upper limit position structure that prevents disengaging is equipped between adjusting unit and laser lens barrel.The utility model connects and cancels by the movement of movable connecting member, and then auxiliary realization taper head is automatically replaced, overall structure is simple, convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of laser processing equipment technology, and in particular to a laser processing device that can automatically change the cone head. Background Technology

[0002] Currently, laser processing equipment typically includes a mirror assembly, a laser barrel, and a cone head. The mirror assembly reflects the projected laser into the laser barrel. The laser barrel contains an upper lens, and the cone head contains a lower lens. The upper and lower lenses form a lens group used to adjust the focus of the laser.

[0003] With technological advancements, many laser processing equipment now employ dual-laser processing methods. For example, Chinese utility model patent application number CN202510011878.3, entitled "A Dual-Light Source Laser Engraving Machine," describes a technical solution where the dual-light source laser engraving machine simultaneously switches lenses during light source switching. Similarly, when switching between dual-light sources, the lens assembly also needs to be replaced accordingly to better adapt to different laser wavelengths and achieve better focusing.

[0004] Currently, the laser lens barrel and reflector assembly are generally fixedly connected, making laser lens barrel replacement difficult. Therefore, replacing the conical head could be considered to create a new lens assembly. Considering the safety of laser processing, automatic replacement during the process would be safer and improve processing efficiency. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a laser processing device that can automatically change the cone head, thereby effectively improving processing efficiency.

[0006] A laser processing device, comprising:

[0007] A workbench, with a cone head fixing seat on one side, the cone head fixing seat having multiple cone head insertion holes;

[0008] A laser processing head includes a laser lens barrel, the lower end of which is connected to a conical head via a movable connector. An adjusting ring is fitted onto the upper end of the conical head, and the middle of the adjusting ring has an inner protrusion for pushing against the movable connector. The upper end of the conical head has a through hole that matches the movable connector, and the side of the laser lens barrel has a snap-fit ​​hole for engaging with the movable connector. A delayed reset elastic element is provided between the adjusting ring and the lower end of the conical head.

[0009] An adjustment unit is fitted on the outer side of the laser lens barrel. The adjustment unit has a moving space for moving the laser lens barrel and a first elastic element for driving the laser lens barrel to move downward. An upper limit structure is provided between the adjustment unit and the laser lens barrel to prevent detachment.

[0010] Furthermore, the upper limit structure includes an outer ring disposed at the upper end of the laser lens barrel, and the adjustment unit includes an inner ring sleeved with the laser lens barrel, the inner ring being located below the outer ring.

[0011] Furthermore, the adjustment unit includes an upper collar, the lower end of which is connected to an inner collar, the upper collar being fitted over the outer collar, and an upper limit ring extending inward from the upper end of the upper collar. A first elastic element is located between the upper limit ring and the outer collar, or the first elastic element is located between the outer collar and the inner collar.

[0012] Furthermore, the outer side of the inner sleeve is provided with an upper thickening portion, the middle of which forms a circular hole and is sleeved with the upper sleeve and connected by interference fit or threaded connection. The outer end of the inner sleeve is connected to an abutment portion, which is disposed opposite to the upper end of the adjusting ring.

[0013] Furthermore, the movable connector includes a ball bearing, and the perforation is a round hole. A limiting protrusion is provided at the inner end of the side wall of the perforation to prevent the ball bearing from dislodging from the perforation.

[0014] Furthermore, the upper outer side of the cone is connected to an upper limit position for limiting the upward movement distance of the adjusting ring.

[0015] Furthermore, the lower outer surface of the cone head is provided with an annular snap-fit ​​groove, and the side wall of the cone head insertion hole is provided with an annular protrusion that matches the snap-fit ​​groove.

[0016] Furthermore, the lower end of the cone is provided with a lower thickened portion, and the delayed reset elastic element is disposed between the lower thickened portion and the inner convex portion; more preferably, the outer diameter of the lower thickened portion is not greater than the inner diameter of the lower end of the adjusting ring.

[0017] The beneficial effects of this utility model are: This utility model realizes the connection and disconnection of the cone head by moving the movable connecting part, thereby assisting in the automatic replacement of the cone head. The overall structure is simple and easy to use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the laser processing equipment in this embodiment.

[0019] Figure 2 This is a schematic diagram of a laser processing head.

[0020] Figure 3 for Figure 2 A schematic diagram of a structure excluding the reflector assembly.

[0021] Figure 4 This is a cross-sectional view of the laser lens barrel and cone head during normal operation.

[0022] Figure 5 This is a schematic diagram of the first cross-sectional structure of the laser lens barrel and the cone when the cone is being replaced.

[0023] Figure 6 This is a schematic diagram of the second cross-sectional structure of the laser lens barrel and the cone when the cone is being replaced.

[0024] Figure 7 This is a schematic diagram of the third cross-sectional structure of the laser lens barrel and the cone when the cone is being replaced.

[0025] Figure 8 This is a schematic diagram of the fourth cross-sectional structure of the laser lens barrel and the cone when the cone is being replaced.

[0026] Figure 9 This is a schematic diagram of the fifth cross-sectional structure of the laser lens barrel and the cone when the cone is being replaced.

[0027] Figure 10 This is a schematic diagram of the sixth cross-sectional structure of the laser lens barrel and the cone when the cone is being replaced.

[0028] Figure 11 This is a schematic diagram of the seventh cross-sectional structure of the laser lens barrel and the cone when the cone is being replaced.

[0029] Figure 12 This is a schematic diagram of the eighth cross-sectional structure of the laser lens barrel and the cone when the cone is being replaced.

[0030] Figure 13 This is a schematic diagram of the ninth cross-sectional structure of the laser lens barrel and the cone when the cone is being replaced.

[0031] Figure 14 for Figure 3 A schematic diagram of its decomposition.

[0032] Figure label:

[0033] 1—Laser processing head; 2—Conical head fixing seat; 3—XYZ moving mechanism; 21—Conical head insertion hole; 11—Conical head; 12—Adjusting ring; 13—Adjusting unit; 14—Upper collar; 15—First elastic element; 16—Ball; 17—Delayed reset elastic element; 18—Laser lens barrel; 111—Snap-fit ​​groove; 112—Lower thickened part; 113—Through hole; 114—Upper limit part; 115—Lower abutment ring; 116—Limiting protrusion; 121—Inner protrusion; 131—Inner collar; 141—Upper limit ring; 181—Snap-fit ​​annular groove; 182—Outer collar; 183—Upper abutment ring. Detailed Implementation

[0034] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0035] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0036] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "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 application 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 application.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0038] The present invention will now be described in detail with reference to the accompanying drawings. Figures 1 to 3 As shown.

[0039] Example 1: See Figure 1 , Figure 2A laser processing device includes: a worktable and a laser processing head 1. A conical head fixing seat 2 is provided on one side of the worktable, and the conical head fixing seat 2 is provided with a plurality of conical head insertion holes 21. The laser processing head 1 includes a laser lens barrel 18. The lower end of the laser lens barrel 18 is connected to a conical head 11 through a movable connector. An adjusting ring 12 is sleeved on the upper end of the conical head 11. The middle part of the adjusting ring 12 is provided with an inner protrusion 121 for pushing against the movable connector. The upper end of the conical head 11 is provided with a through hole 113 adapted to the movable connector. The side of the laser lens barrel 18 is provided with a snap-fit ​​hole for engaging with the movable connector. A delayed reset elastic element 17 is provided between the adjusting ring 12 and the lower end of the conical head 11. An adjusting unit 13 is sleeved on the outer side of the laser lens barrel 18. The adjusting unit 13 is provided with a moving space for moving the laser lens barrel 18 and a first elastic element 15 for driving the laser lens barrel 18 to move downward. An upper limit structure is provided between the adjusting unit 13 and the laser lens barrel 18 to prevent disengagement.

[0040] When implementing this technical solution, please refer to... Figure 1 A cone 11 can be inserted into the cone insertion hole 21 of the cone head fixing seat 2. When the cone 11 is inserted into the cone insertion hole 21, the cone 11 and the cone head fixing seat 2 are connected by a mating or interference fit, so that the cone 11 will not be easily pulled out. Secondly, the laser processing head 1 is connected to an XYZ moving mechanism 3. The XYZ moving mechanism 3 is existing technology and drives the laser processing head 1 to move in the X, Y, and Z directions, or drives the laser processing head 1 to move in the X and Y directions and drives the worktable to move in the Z direction. The XYZ moving mechanism 3 is connected to the laser processing head 1. For ease of description, the example of the XYZ moving mechanism 3 driving the laser processing head 1 to move in the X, Y, and Z directions will be used.

[0041] When the cone head 11 needs to be replaced, the XYZ moving mechanism 3 first moves the laser processing head 1 above a cone head insertion hole 21; then it drives the laser processing head 1 to move downwards, so that the cone head 11 located below enters the cone head insertion hole 21 and connects with the cone head fixing seat 2; at this time, it continues to move downwards. Since the cone head 11 and the laser lens barrel 18 are now connected by a movable connector, the inner protrusion 121 of the adjusting ring 12 abuts against the movable connector, and the movable connector is limited. Therefore, both the cone head 11 and the laser lens barrel 18 remain stationary. See [reference needed]. Figure 4 The adjusting unit 13 and the laser lens barrel 18 are sleeved together and can move relative to each other. The adjusting unit 13 is provided with a moving space and a first elastic element 15. When the adjusting unit 13 moves downward, the laser lens barrel 18 enters the moving space, and the first elastic element 15 is compressed. When the adjusting unit 13 moves to abut against the adjusting ring 12, it continues to push the adjusting ring 12 downward, while the delayed reset elastic element 17 deforms. (See [reference]). Figure 5Once the inner protrusion 121 of the adjusting ring 12 leaves the lateral position of the through hole 113 at the upper end of the cone head 11, the XYZ moving mechanism 3 stops driving the laser processing head 1 to move downward. The first elastic element 15 will drive the laser barrel 18 to move downward and push the movable elastic element to move within the through hole 113 until the movable elastic element completely leaves the laser barrel 18. The laser barrel 18 will then continue to move downward a short distance. See [link to relevant documentation]. Figure 6 It should be noted that the laser lens barrel 18 and the cone head 11 are respectively provided with an upper abutment ring 183 and a lower abutment ring 115 for placing the lens. See [reference needed]. Figure 4 .

[0042] Then, the XYZ moving mechanism 3 drives the laser processing head 1 to move upward. At this time, the adjusting unit 13 moves upward under the clamping of the reflector assembly, and the first elastic element 15 resets. The upper limit structure then drives the laser lens barrel 18 to move upward. (See above.) Figure 7 During this process, the elasticity of the delayed reset elastic element 17 does not immediately return, but gradually returns, slowly pushing the adjusting ring 12 upward. Before the inner protrusion 121 of the adjusting ring 12 reaches the outside of the perforation 113, the lower end of the laser lens barrel 18 has already left the inside of the perforation 113. Before leaving, since there is no obstruction on the outside of the perforation 113, the laser lens barrel 18 will drive the movable connector into the perforation 113, and partially protrude from the outside of the perforation 113. The cone 11 is disconnected from the laser lens barrel 18, and the cone 11 separates from the laser lens barrel 18. When the inner protrusion 121 of the adjusting ring 12 reaches the outside of the perforation 113, the movable connector is pushed inward a bit, that is, the movable connector moves inward, and partially protrudes from the inside of the perforation 113.

[0043] Next, the XYZ moving mechanism 3 drives the laser processing head 1 to move in the X and Y directions, and moves it above the cone insertion hole 21 where the cone 11 is installed. Then, it drives the laser processing head 1 to move downwards. (See below) Figure 8 The lower end of the laser lens barrel 18 first abuts against the movable connector, see [link / reference]. Figure 9 Since the adjusting ring 12 is not pressed by the lower end of the adjusting unit 13 at this time, the inner protrusion 121 of the adjusting ring 12 prevents the movable connecting member from moving outward; the laser lens barrel 18 remains stationary, the adjusting unit 13 moves downward relative to the laser lens barrel 18, the first elastic member 15 deforms, and the laser lens barrel 18 enters the moving space. See [link to relevant documentation]. Figure 10 When the lower end of the adjusting unit 13 abuts against the upper end of the adjusting ring 12, and continues to press the adjusting ring 12 downward, the elastic restoring mechanism deforms; until the inner protrusion 121 of the adjusting ring 12 leaves the outer side of the through hole 113, the XYZ moving mechanism 3 stops driving. See below. Figure 11During this process, since the first elastic element 15 continuously drives the laser lens barrel 18 to move downward, when the inner protrusion 121 leaves the outside of the through hole 113, the laser lens barrel 18 moves downward and pushes the movable connector outward. See [link to relevant documentation]. Figure 12 At this point, the locking hole of the laser lens barrel 18 is located below the through hole 113. Next, the XYZ moving mechanism 3 drives the laser processing head 1 to move upwards, the adjusting unit 13 moves upwards, and the laser lens barrel 18 also moves upwards until the locking hole of the laser lens barrel 18 is located inside the through hole 113 and stops. See [link to relevant documentation]. Figure 13 Driven by the delayed reset elastic element 17, the adjusting ring 12 gradually moves upward. When the inner protrusion 121 contacts the movable connector, it drives the movable connector to move inward and enters the insertion hole. At this time, the XYZ moving mechanism 3 drives the laser processing head 1 to move upward again. Since the laser lens barrel 18 is already connected to the cone head 11 through the movable connector, the cone head 11 leaves the cone head fixing seat 2. Thus, the replacement of the cone head 11 is completed.

[0044] In this technical solution, the XYZ moving mechanism 3 and the control system that controls its movement are both existing technologies. When the XYZ moving mechanism 3 drives the laser processing head 1 to move in the X and Y directions and drives the worktable to move in the Z direction, it is only necessary to change the driving of the laser processing head 1 to move up and down to drive the worktable to move down and up.

[0045] See Figures 4 to 12 The upper limit structure includes an outer ring 182 disposed at the upper end of the laser lens barrel 18, and the adjustment unit 13 includes an inner ring 131 sleeved with the laser lens barrel 18, the inner ring 131 being located below the outer ring 182.

[0046] Since the adjustment unit 13 is equipped with a moving space and a first elastic element 15, the first elastic element 15 pushes the laser lens barrel 18 downwards. To prevent the laser lens barrel 18 from separating, it is necessary to prevent the laser lens barrel 18 from moving downwards and separating. Therefore, in this embodiment, an outer ring 182 is provided at the upper end of the laser lens barrel 18, and an inner ring 131 is provided in the adjustment unit 13. The inner ring 131 restricts the movement of the outer ring 182. It can be understood that the outer ring 182 can be an open-loop structure or a closed-loop structure. Of course, in specific settings, the outer ring 182 can be an outer protrusion, and the inner ring 131 can be an inner protrusion. The obstruction of the outer protrusion and the inner protrusion provides a limiting effect. The outer ring 182 and the laser lens barrel 18 can be integrally formed or separately formed. It is set according to the actual assembly requirements. The first elastic element 15 can be set between the outer ring 182 and the inner ring 131.

[0047] See Figures 4 to 13The adjustment unit 13 includes an upper collar 14, the lower end of which is connected to an inner collar 131. The upper collar 14 is fitted over the outer side of the outer collar 182. An upper limit ring 141 extends inward from the upper end of the upper collar 14. A first elastic member 15 is located between the upper limit ring 141 and the outer collar 182, or the first elastic member 15 is located between the outer collar 182 and the inner collar 131.

[0048] To facilitate the placement of the first elastic element 15 and to limit the movement of the laser lens barrel 18, an upper collar 14 is provided in the adjustment unit 13 of this embodiment. In practical applications, the upper collar 14 is connected to the reflector assembly of the laser engraving head, and the adjustment unit 13 and the laser lens barrel 18 move together through the upper collar 14. Therefore, it is necessary to limit the movement range of the laser lens barrel 18. In this embodiment, an upper limit ring 141 is provided on the inner side of the upper end of the upper collar 14. The first elastic element 15 can be a spring, with both ends of the spring abutting against the lower end of the upper limit ring 141 and the upper end of the outer collar 182, respectively. The spring has a fast elastic response and can quickly drive the laser lens barrel 18 to move.

[0049] See Figures 4 to 14 The inner sleeve 131 has an upper thickened part on its outer side. The middle part of the upper thickened part forms a circular hole and is sleeved with the upper sleeve 14 and is connected by interference fit or threaded connection. The outer end of the inner sleeve 131 is connected to an abutment part, which is arranged opposite to the upper end of the adjusting ring 12.

[0050] For ease of assembly, the adjustment unit 13 in this embodiment is configured as two main parts, although more parts are also possible. The inner collar 131 is connected to the upper collar 14 via a thickened upper portion. The connection can be achieved through a rigid fit or threaded connection, ensuring the two are integrated and not easily separated. Alternatively, welding or bolting can also be used. The abutment portion at the outer end of the inner collar 131 can be an abutment ring or an abutment block. In this embodiment, the abutment portion is abutment cylinder, integrally formed with the inner collar 131. However, it can also be formed separately and then connected; for example, through threaded or bolted connections.

[0051] See Figures 2 to 14 The movable connector includes a ball 16, and the through hole 113 is a round hole. The inner end of the side wall of the through hole 113 is provided with a limiting protrusion 116 to prevent the ball 16 from disengaging from the through hole 113.

[0052] The movable connector is configured as a ball bearing 16, allowing it to move smoothly within the perforation 113 and into the snap-fit ​​hole of the laser lens barrel 18 and the upper notch of the adjusting ring 12. It is also easily squeezed out by the laser lens barrel 18 and the adjusting ring 12. To prevent the ball bearing 16 from disengaging from the perforation 113 and entering the interior of the cone 11 after it is removed when the cone 11 is replaced, a limiting protrusion 116 is provided to prevent the ball bearing 16 from disengaging from the perforation 113. The limiting protrusion 116 can be a limiting ring with an inner diameter slightly smaller than the perforation 113, such as 0.1-0.5 mm smaller; its thickness is also between 0.1-0.5 mm. The diameter of the ball bearing 16 is equal to the inner diameter of the perforation 113.

[0053] It is understood that the snap-fit ​​hole of the laser lens barrel 18 can be a concave hole adapted to the protruding part of the ball 16, or it can be a concave hole of other shapes. In this embodiment, the snap-fit ​​hole is set as a snap-fit ​​annular groove 181; the side of the snap-fit ​​annular groove 181 can be a bevel or an arc surface. The thickness of the upper end of the cone 11 is less than the diameter of the ball 16. Preferably, the thickness of the upper end of the cone 11 is 1 / 2 to 2 / 3 of the diameter of the ball 16.

[0054] Secondly, the movable connector can also be a movable block, with both ends of the movable block being spherical or other arc or conical shapes; so that when the two ends of the movable block enter the snap-fit ​​hole and the upper notch of the adjusting ring 12, they can smoothly push the movable connector to move when they encounter the movement of the laser lens barrel 18 or the adjustment ring 12.

[0055] See Figures 5 to 14 The upper outer side of the cone 11 is connected to an upper limit position 114 for limiting the upward movement distance of the adjusting ring 12.

[0056] A delayed-reset elastic element is provided between the inner protrusion 121 of the adjusting ring 12 and the lower end of the cone head 11. The delayed-reset elastic element continuously pushes the adjusting ring 12 upward. To prevent the inner protrusion 121 from leaving the outside of the through hole 113 during use, which could cause the movable connector to detach from the laser lens barrel 18 and thus pose a risk of separation between the laser lens barrel 18 and the pusher head, an upper limit stop 114 is connected to the outer side of the upper end of the cone head 11 in this embodiment. The upper limit stop 114 restricts the upward movement of the adjusting ring 12. The upper limit stop 114 can be a protrusion or a lump. For example, a threaded hole can be provided on the surface of the cone head 11, and a small bolt can be connected to it. The protruding head of the small bolt is the upper limit stop 114. Of course, other structures can also be used. For example, in this embodiment, an annular groove is provided at the upper end of the cone head 11, and an open-ring annular piece is provided in the annular groove. The outer end of the annular piece is the upper limit stop 114, which restricts the upward movement distance of the adjusting ring 12.

[0057] See Figures 4 to 14The lower outer side of the cone 11 is provided with an annular snap-fit ​​groove 111, and the side wall of the cone insertion hole 21 is provided with an annular protrusion (not shown in the figure) that cooperates with the snap-fit ​​groove 111.

[0058] To facilitate fixing the cone 11 to the cone fixing seat 2, this embodiment adopts a combination of insertion and snap-fit. Driven by the XYZ moving mechanism 3, the laser processing head 1 enters the cone fixing seat 2, and the lower end of the cone 11 inserts into the cone insertion hole 21. The snap-fit ​​groove 111 at the lower end of the cone 11 snaps into the annular protrusion on the side wall of the cone insertion hole 21. Preferably, the inner lining of the cone fixing seat 2 is made of rubber, which has a certain elasticity, facilitating the snap-fit ​​of the cone 11. Secondly, the lower end of the laser lens barrel 18 can also have a tapered side. By providing a tapered side at the lower end of the laser lens barrel 18 (not shown in the figure), it is convenient for the laser lens barrel 18 to accurately and quickly insert the cone 11 when changing it.

[0059] Furthermore, the lower end of the cone 11 is provided with a lower thickened portion 112, and the delayed reset elastic element is disposed between the lower thickened portion 112 and the inner protrusion 121; more preferably, the outer diameter of the lower thickened portion 112 is not greater than the inner diameter of the lower end of the adjusting ring 12.

[0060] To facilitate the installation of the delayed reset elastic element, this embodiment provides a lower thickened portion 112 at the lower end of the cone head 11. The lower end of the delayed reset elastic element abuts against the thickened portion, and the upper end of the delayed reset elastic element abuts against the inner protrusion 121. The delayed reset elastic element is located within the notch at the lower end of the adjusting ring 12. The delayed reset elastic element can be a delayed reset spring, a sponge, cotton wool, or other objects with slow elastic reset. Secondly, to prevent interference between the lower thickened portion 112 and the lower end of the adjusting ring 12, the following can be implemented: 1. The length of the adjusting ring 12 below the inner protrusion 121 can be shorter, so that the lower end of the adjusting ring 12 will not contact the thickened portion; 2. The inner diameter of the lower end of the adjusting ring 12 can be larger, located outside the lower thickened portion 112; this also protects the delayed reset elastic element. This embodiment selects the second option.

[0061] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A laser processing device, characterized in that: It includes: A workbench, with a cone head fixing seat on one side, the cone head fixing seat having multiple cone head insertion holes; A laser processing head includes a laser lens barrel, the lower end of which is connected to a conical head via a movable connector. An adjusting ring is fitted onto the upper end of the conical head, and the middle of the adjusting ring has an inner protrusion for pushing against the movable connector. The upper end of the conical head has a through hole that matches the movable connector, and the side of the laser lens barrel has a snap-fit ​​hole for engaging with the movable connector. A delayed reset elastic element is provided between the adjusting ring and the lower end of the conical head. An adjustment unit is fitted on the outer side of the laser lens barrel. The adjustment unit has a moving space for moving the laser lens barrel and a first elastic element for driving the laser lens barrel to move downward. An upper limit structure is provided between the adjustment unit and the laser lens barrel to prevent detachment.

2. The laser processing equipment according to claim 1, characterized in that: The upper limit structure includes an outer ring disposed at the upper end of the laser lens barrel, and the adjustment unit includes an inner ring sleeved with the laser lens barrel, the inner ring being located below the outer ring.

3. The laser processing equipment according to claim 2, characterized in that: The adjustment unit includes an upper collar, the lower end of which is connected to an inner collar. The upper collar is fitted over the outer collar. An upper limit ring extends inward from the upper end of the upper collar. A first elastic element is located between the upper limit ring and the outer collar, or the first elastic element is located between the outer collar and the inner collar.

4. The laser processing equipment according to claim 3, characterized in that: The outer side of the inner collar is provided with an upper thickening part, the middle of which forms a circular hole and is sleeved with the upper collar and connected by interference fit or threaded connection. The outer end of the inner collar is connected to an abutment part, which is arranged opposite to the upper end of the adjusting ring.

5. The laser processing equipment according to claim 1, characterized in that: The movable connector includes a ball bearing, and the perforation is a round hole. A limiting protrusion is provided on the inner end of the side wall of the perforation to prevent the ball bearing from dislodging from the perforation.

6. The laser processing equipment according to claim 1, characterized in that: The upper outer side of the cone is connected to an upper limit position for limiting the upward movement distance of the adjusting ring.

7. The laser processing equipment according to claim 6, characterized in that: The upper end of the cone is provided with an annular groove, and an open-ring annular plate is provided in the annular groove. The outer end of the annular plate is the upper limit part.

8. The laser processing equipment according to claim 1, characterized in that: The lower outer surface of the cone head is provided with an annular snap-fit ​​groove, and the side wall of the cone head insertion hole is provided with an annular protrusion that matches the snap-fit ​​groove.

9. The laser processing equipment according to claim 1, characterized in that: The lower end of the cone is provided with a lower thickened part, and the delayed reset elastic element is disposed between the lower thickened part and the inner convex part; the outer diameter of the lower thickened part is not greater than the inner diameter of the lower end of the adjusting ring.

10. The laser processing equipment according to claim 1, characterized in that: The lower end of the laser lens tube has a tapered side.

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