Laser head auxiliary focusing device and laser equipment

Abstract

This application provides a laser head-assisted focusing device and a laser device, belonging to the field of laser device technology. The laser head-assisted focusing device includes a housing; a movable part, movably installed within the housing, the movable part having a stepped surface; a probe, inserted and fixed to the movable part; and a locking part, including a rotating shaft and a cantilever, the rotating shaft being rotatably installed within the housing, and the cantilever fixed to the rotating shaft; the cantilever, as the rotating shaft rotates, switches the locking part between a locked state and an unlocked state; when the locking part is in the locked state, the cantilever abuts against the stepped surface, locking the movable part in a first position within the housing, and the probe is in a retracted state; when the locking part is in the unlocked state, the cantilever separates from the stepped surface, the movable part can move relative to the housing, and the probe is in a released state. In the locked state, the probe is retracted, with a short extension length beyond the housing to avoid damage; when the probe is needed, the rotating shaft drives the cantilever to rotate, separating the cantilever from the stepped surface, and the probe extends outward and is released.

Description

Technical Field

[0001] This application belongs to the field of laser equipment technology, and more specifically, relates to a laser head-assisted focusing device and a laser device. Background Technology

[0002] In laser engraving, laser cutting, and other processing fields, the focusing accuracy of the laser head directly affects the working performance and processing quality of laser equipment. Traditional laser head focusing methods mostly employ mechanical limiting, optical feedback, or electronically controlled focusing. However, in scenarios involving complex curved surfaces, multiple materials, or non-uniform surfaces, existing technologies are easily affected by environmental interference, resulting in slow focusing speed, insufficient accuracy, or poor adaptability. To address these issues, auxiliary focusing devices often integrate probes to obtain the position information of the object being measured for calibration. However, existing probes are typically fixed and exposed, making them susceptible to damage from impacts and offering poor protection. Utility Model Content

[0003] The purpose of this application is to provide a laser head-assisted focusing device and a laser equipment to solve the technical problem that the fixed exposed probes used in the prior art are easily damaged.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide a laser head-assisted focusing device, comprising:

[0005] case;

[0006] A movable component is movably installed within the housing, and the movable component has a stepped surface;

[0007] The probe is inserted and fixed to the movable part;

[0008] A locking component includes a rotating shaft and a cantilever arm. The rotating shaft is rotatably mounted inside the housing, and the cantilever arm is fixed to the rotating shaft. The cantilever arm switches the locking component between a locked state and an unlocked state as the rotating shaft rotates.

[0009] When the locking member is in the locked state, the cantilever abuts against the stepped surface, locking the movable member in a first position within the housing, and the probe is in the retracted state; when the locking member is in the unlocked state, the cantilever separates from the stepped surface, the movable member can move relative to the housing, and the probe is in the released state.

[0010] Optionally, it also includes a status recognition sensor, which is fixed inside the housing and used to identify the current position of the probe.

[0011] Optionally, the state recognition sensor includes a first photoelectric switch and a second photoelectric switch, with the first photoelectric switch located above the second photoelectric switch. The movable component has a baffle. When the probe is in the retracted state, the baffle is located within the photoelectric groove of the first photoelectric switch and / or the second photoelectric switch. When the probe is in the released state and extends to its maximum length outside the housing, the baffle is located below the second photoelectric switch.

[0012] Optionally, it further includes a first elastic element; the first elastic element is sandwiched between the movable element and the inner wall of the housing, and when the movable element is locked in the first position, the first elastic element is in a stored state.

[0013] Optionally, the first elastic element is sleeved on the probe.

[0014] Optionally, it further includes a second elastic element, which is sandwiched between the cantilever and the inner wall of the housing, for keeping the cantilever abutting against the stepped surface.

[0015] Optionally, the housing includes a front shell and a rear cover. The front shell is provided with a first groove, and the rear cover is provided with a second groove. The front shell and the rear cover are detachably connected so that the first groove and the second groove are aligned to accommodate the rotating shaft.

[0016] Optionally, it also includes a first magnetic element, at least one of which is fixed to the housing.

[0017] Optionally, the locking element further includes an operating part, which is connected to the rotating shaft and extends to the outside of the housing.

[0018] This application also provides a laser device, which includes a laser head and a laser head auxiliary focusing device as described above, wherein the housing is connected to the laser head.

[0019] The beneficial effects of the laser head-assisted focusing device and laser equipment provided in this application are as follows: Compared with the prior art, the rotation of the rotating shaft in this application can drive the cantilever to move, thereby changing the fit between the cantilever and the step surface. When the cantilever abuts against the step surface, the movable part is locked in the first position. At this time, the probe is stable in the initial position, and the length extending out of the housing is short, avoiding damage to the probe. When the probe needs to be used, the rotating shaft drives the cantilever to rotate, causing the cantilever to separate from the step surface. The probe extends outward and can move relative to the housing along with the movable part, thereby facilitating focusing with the help of the probe. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the forward structure of the laser head-assisted focusing device provided in the embodiments of this application;

[0022] Figure 2 This is a side view of the laser head-assisted focusing device provided in the embodiments of this application;

[0023] Figure 3 This is a schematic diagram of the rear structure of the laser head-assisted focusing device provided in the embodiments of this application;

[0024] Figure 4 This is an exploded structural diagram of the laser head-assisted focusing device provided in the embodiments of this application;

[0025] Figure 5 A cross-sectional structural schematic diagram of the laser head-assisted focusing device provided in the embodiments of this application when the movable part is in the first position;

[0026] Figure 6 A cross-sectional structural schematic diagram of the laser head-assisted focusing device provided in the embodiments of this application when the movable part is in the second position;

[0027] Figure 7 A schematic diagram of the internal structure of the laser head-assisted focusing device provided in the embodiments of this application when the movable part is in the first position;

[0028] Figure 8 A schematic diagram of the internal structure of the laser head-assisted focusing device provided in the embodiments of this application when the movable part is in the second position;

[0029] Figure 9 This is a three-dimensional structural diagram of the locking component used in the embodiments of this application;

[0030] Figure 10 This is a three-dimensional structural diagram of the movable component used in the embodiments of this application;

[0031] Figure 11 This is a partial structural schematic diagram of the laser device provided in the embodiments of this application;

[0032] Figure 12 This is a schematic diagram of a partial explosion structure of a laser device provided in an embodiment of this application;

[0033] Figure 13This is one of the schematic diagrams illustrating the operation of the laser device during detection provided in the embodiments of this application;

[0034] Figure 14 This is the second schematic diagram of the laser device provided in the embodiments of this application during detection;

[0035] Figure 15 This is the third schematic diagram illustrating the operation of the laser device during detection provided in the embodiments of this application;

[0036] Figure 16 This is the fourth schematic diagram illustrating the operation of the laser device during detection provided in the embodiments of this application;

[0037] Figure 17 This is a schematic diagram illustrating the measurement principle of the laser device provided in this application during assisted focusing.

[0038] The following are the labeling elements in the figure:

[0039] 10. Housing; 11. Front housing; 12. Rear cover; 20. Status recognition sensor; 21. First photoelectric switch; 22. Second photoelectric switch; 30. Moving part; 31. Baffle; 32. Stepped surface; 33. Through hole; 40. Probe; 50. Locking part; 51. Rotating shaft; 52. Cantilever; 521. Guide slope; 53. Operating part; 54. Support arm; 55. Guide post; 60. First elastic element; 70. Second elastic element; 80. First magnetic element; 90. Spring pin; 110. Mounting base; 111. Second magnetic element; 113. Solder pad; 120. Fixing boss; 130. Laser head. Detailed Implementation

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] This application provides a laser head-assisted focusing device, including a housing 10, a movable member 30, a probe 40, and a locking member 50. The movable member 30 is movably installed within the housing 10, and the probe 40 is inserted and fixed to the movable member 30. As the movable member 30 moves along a first direction, the probe 40 extends outward from the housing 10; as the movable member 30 moves in the opposite direction to the first direction, the probe 40 retracts into the housing 10. (See also...) Figure 7 and Figure 9 The locking element 50 includes a rotating shaft 51 and a cantilever 52. The rotating shaft 51 is rotatably mounted within the housing 10, and the cantilever 52 is fixed to the rotating shaft 51. As the rotating shaft 51 rotates, the locking element 50 switches between an unlocked state and a locked state. (See reference...) Figure 10 The movable component 30 has a stepped surface 32. (See reference...) Figure 5 and Figure 7 When the locking member 50 is in the locked state, the cantilever 52 abuts against the stepped surface 32, locking the movable member 30 in the first position within the housing 10, and the probe 40 is in the retracted state. (See also...) Figure 6 and Figure 8 When the locking member 50 is in the unlocked state, the cantilever 52 is disengaged from the step surface 32, the movable member 30 can move relative to the housing 10, and the probe 40 is in the released state.

[0045] The laser head-assisted focusing device detects the distance between the laser head 130 and the workpiece surface and adjusts the focal length in real time to ensure that the laser beam is focused at the optimal position.

[0046] To prevent the movable part 30 from shifting during movement within the housing 10, one of the movable part 30 and the inner wall of the housing 10 is provided with a groove, and the other is provided with a slider. The slider is housed within the groove, thereby providing guidance for the movement of the movable part 30 through the cooperation of the groove and the slider. (See reference...) Figure 10The movable component 30 has a through hole 33, and the probe 40 is inserted into the through hole 33 and fastened to the movable component 30, so that the probe 40 and the movable component 30 move synchronously. Optionally, the probe 40 and the movable component 30 are an integral structure.

[0047] See Figure 9 The end of the cantilever 52 has a guide slope 521. When the movable member 30 moves upward, the movable member 30 contacts the guide slope 521 to push the cantilever 52 to drive the rotating shaft 51 to rotate, so that the movable member 30 can pass over the cantilever 52 and the cantilever 52 abuts against the step surface 32.

[0048] It should be noted that the probe 40 being in the retracted state includes both situations where only a small portion of the probe 40's end is outside the housing 10 and situations where it is completely retracted into the housing 10. For ease of description, the following text and accompanying drawings will only illustrate the case where a small portion of the probe 40 is outside the housing 10. Figure 1 , Figure 5 and Figure 7 When probe 40 is in the retracted state, only a small portion of probe 40 is outside the housing 10, and the movable part 30 is constrained to the first position by the cantilever 52. The retracted state of probe 40 is considered its initial position. The rotating shaft 51 is rotatably mounted inside the housing 10. When the rotating shaft 51 rotates and causes the cantilever 52 to separate from the stepped surface 32, the movable part 30 lacks support and can move within the housing 10. It is understandable that after the cantilever 52 disengages from the stepped surface 32, [refer to...]. Figure 6 and Figure 8 The movable part 30, at least under the action of gravity, drives the probe 40 to move outward from the housing 10, increasing the extension length of the probe 40. At this time, the probe 40 is in a released state and can move up and down under the action of external force to assist in focusing. After focusing is completed, the probe 40 moves upward to the initial position under the action of external force, so that the cantilever 52 and the step surface 32 abut against each other again, and the locking part 50 returns to the locked state.

[0049] Specifically, when probe 40 is in its initial position, its tip is at a higher position. If laser head 130 needs to probe an object, it rotates shaft 51 to separate cantilever 52 from step surface 32, releasing probe 40 to a lower position and placing it in a released state. Then, laser head 130 is moved above the object to be measured, lowering it so that probe 40 touches the surface of the object. As laser head 130 moves downward, probe 40 is pushed upward, allowing the height H of the laser beam focal point from laser head 130 to the object to be measured to be determined based on the movement of laser head 130 and probe 40. After detection, probe 40 returns to its initial position under external force, causing cantilever 52 to re-engage with step surface 32.

[0050] The laser head-assisted focusing device provided in this application embodiment allows the rotation of the rotating shaft 51 to drive the cantilever 52 to move, thereby changing the engagement relationship between the cantilever 52 and the step surface 32. When the cantilever 52 abuts against the step surface 32, the movable part 30 is locked in the first position. At this time, the probe 40 is stable in the initial position, and the length extending out of the housing 10 is short to avoid damage to the probe 40. When the probe 40 needs to be used, the rotating shaft 51 drives the cantilever 52 to rotate, causing the cantilever 52 to separate from the step surface 32. The probe 40 extends outward and can move relative to the housing 10 along with the movable part 30, thereby facilitating focusing with the help of the probe 40.

[0051] In some optional embodiments of this application, see [reference]. Figure 4 The laser head-assisted focusing device also includes a status recognition sensor 20, which is fixed inside the housing 10 and is used to identify the current position of the probe 40.

[0052] The laser head-assisted focusing device also includes a circuit board, on which the status recognition sensor 20 is fixed. The circuit board is fixed inside the housing 10 by screws.

[0053] When probe 40 is in its initial position, its tip is at a higher position. If laser head 130 needs to probe an object, the shaft 51 is rotated to separate the cantilever 52 from the step surface 32, releasing probe 40 to a lower position and placing it in a released state. Then, laser head 130 is moved above the object to be measured, lowering it so that probe 40 touches the surface of the object. As laser head 130 moves downward, probe 40 is pushed upward. The current position information of probe 40 is acquired by state recognition sensor 20, and the descent height of laser head 130 when probe 40 moves to the current position is recorded. The height H from the laser beam focal point of laser head 130 to the object to be measured is calculated based on the descent height of laser head 130 when probe 40 moves to the preset position. After detection, probe 40 is retracted. When performing laser engraving or cutting, the distance between laser head 130 and the object to be measured is controlled based on the calculated height H from the laser beam focal point of laser head 130 to the object, improving laser utilization.

[0054] In some embodiments, see Figure 4 The status recognition sensor 20 includes a first photoelectric switch 21 and a second photoelectric switch 22, with the first photoelectric switch 21 located above the second photoelectric switch 22. (See reference...) Figure 10 The movable part 30 has a baffle 31, see reference. Figure 7 With probe 40 in its initial position, baffle 31 is located within the photoelectric slot of the first photoelectric switch 21 and / or the second photoelectric switch 22. (See also...) Figure 8 When the probe 40 is in the released state and extends the longest length outside the housing 10, the baffle 31 is located below the second photoelectric switch 22.

[0055] See Figure 6 and Figure 8 When the probe 40 is in the released state and extends the longest length outside the housing 10, the movable member 30 is located in the second position inside the housing 10, which is the lowest position where the movable member 30 can move within the housing 10. As the movable member 30 moves between the first and second positions, the baffle 31 moves in and out of the photoelectric slots of the two photoelectric switches, thereby identifying the position and state of the probe 40 by means of the states of the two photoelectric switches.

[0056] See Figure 7 The first photoelectric switch 21 and the second photoelectric switch 22 are arranged vertically at intervals, with the first photoelectric switch 21 located above the second photoelectric switch 22. When the movable member 30 moves to the first position, the baffle 31 can be located within the photoelectric slot of one of the photoelectric switches, or simultaneously within the photoelectric slots of both photoelectric switches. (See reference...) Figure 5 and Figure 7 When the movable part 30 moves to the first position, the baffle 31 is located within the photoelectric slot of the first photoelectric switch 21. At this time, the first photoelectric switch 21 is in a blocking state, and the laser head 130 determines that the probe 40 is in the initial position based on the blocking state of the first photoelectric switch 21. When the movable part 30 moves to the second position, the baffle 31 is located below the photoelectric slot of the second photoelectric switch 22. At this time, both the first photoelectric switch 21 and the second photoelectric switch 22 are in a conducting state. The laser head 130 confirms that the probe 40 is in a released state based on the conducting states of the first photoelectric switch 21 and the second photoelectric switch 22, and object detection can begin.

[0057] When the laser head 130 needs to detect an object, the movable part 30 moves to the second position, at which point the probe 40 extends the longest length out of the housing 10. Then, the laser head 130 is moved above the object to be measured, and lowered so that the probe 40 touches the surface of the object. As the laser head 130 descends, the probe 40 is pushed upwards until the baffle 31 moves into the photoelectric slot of the second photoelectric switch 22, triggering the second photoelectric switch 22. (See reference...) Figure 17 The descent height of the laser head 130 is recorded at this point. This descent height is then used to further calculate the height H from the focal point of the laser beam 130 to the object being measured, providing reference data for subsequent laser operations. During the return of the probe 40 to its initial position, an external force pushes the probe 40 to move. During this movement, the baffle 31 passes sequentially through the second photoelectric switch 22 and the first photoelectric switch 21. When the first photoelectric switch 21 is blocked, the probe 40 continues to rise to a certain position, stopping when it reaches the initial position.

[0058] In some other embodiments, the state recognition sensor 20 is a displacement sensor or a pressure sensor. Those skilled in the art will know that methods for determining the distance from the focal point of the light column to the object being measured are used in conjunction with the probe 40 using a displacement sensor or a pressure sensor, and will not be described in detail here.

[0059] The laser head-assisted focusing device also includes a first elastic element 60; the first elastic element 60 is sandwiched between the movable element 30 and the inner wall of the housing 10. When the movable element 30 is locked in the first position, the first elastic element 60 is in a stored state.

[0060] like Figure 5 and Figure 6 As shown, the first elastic element 60 is mounted above the movable element 30. (See reference...) Figure 5 When the movable part 30 moves to the first position, the first elastic element 60 is compressed and stores force, and the movable part 30 is tightly pressed against the end of the cantilever 52 under the thrust of the first elastic element 60. When the rotating shaft 51 causes the cantilever 52 to separate from the stepped surface 32, the first elastic element 60 releases its elastic force, pushing the movable part 30 to move the probe 40 out of the housing 10. It should be noted that, see reference Figure 6 When the movable part 30 moves to the second position, the first elastic element 60 can be in either its natural or compressed state. When the probe 40 moves into the housing 10 under external force, the movable part 30 moves upward, and the first elastic element 60 is compressed, storing force again. Alternatively, the first elastic element 60 can be installed below the movable part 30. For example, the first elastic element 60 can be a tension spring. When the movable part 30 moves to the first position, the first elastic element 60 is stretched and stores force, and the stepped surface 32 is tightly abutted against the cantilever 52 under the tensile force of the first elastic element 60. When the rotating shaft 51 causes the cantilever 52 to separate from the stepped surface 32, the first elastic element 60 contracts, pulling the movable part 30 from the first position to the second position. When the movable part 30 moves to the second position, the first elastic element 60 can return to its natural state or remain in a stretched state. Of course, first elastic elements 60 can also be provided above and below the movable part 30 respectively, and the cooperation of the two first elastic elements 60 can help the movable part 30 move from the first position to the second position.

[0061] Optionally, the first elastic element 60 is an elastic structure such as a spring or a shape memory alloy. For example, the first elastic element 60 is a tension spring or a compression spring. The end of the first elastic element 60 is fixedly connected to the housing 10 or only abuts against the housing 10. Similarly, the end of the first elastic element 60 abuts against only the end of the movable element 30 or is fixedly connected to the end of the movable element 30.

[0062] Understandably, when the movable part 30 moves to the second position, the elastic force of the first elastic part 60 can be fully or partially released.

[0063] In some alternative embodiments, the first elastic element 60 is fitted onto the probe 40. For example... Figure 5 and Figure 6 As shown, the first elastic element 60 is a spring, which is sleeved on the area where the probe 40 is located above the movable element 30. The probe 40 guides the extension and retraction of the first elastic element 60, ensuring that the movable element 30 experiences balanced force during movement. Of course, the first elastic element 60 can also be located beside the probe 40, as long as it can store force when the movable element 30 moves to the first position, so as to provide assistance when the movable element 30 moves from the first position to the second position.

[0064] In some alternative embodiments, the laser head-assisted focusing device further includes a second elastic element 70, which is sandwiched between the cantilever 52 and the inner wall of the housing 10 to keep the cantilever 52 abutting against the stepped surface 32.

[0065] In some embodiments, the second elastic element 70 is directly connected to the cantilever 52. In still other embodiments, see [reference needed]. Figure 9 The locking element 50 also includes a support arm 54, which is fixed to the pivot 51. The support arm 54 and the cantilever 52 are located on the same side of the pivot 51. See reference. Figure 7 and Figure 8 The second elastic element 70 is pressed onto the support arm 54, causing the support arm 54 to fit against the inner wall of the housing 10. Therefore, when the probe 40 is in its initial position, the rotating shaft 51 will not rotate arbitrarily under the action of the second elastic element 70. Optionally, the support arm 54 is provided with a guide post 55, and the second elastic element 70 is sleeved on the guide post 55 to prevent deformation of the direction of the force provided by the second elastic element 70.

[0066] With the movable part 30 in the first position, the probe 40 is in its initial position, with only its end exposed. The elastic force of the second elastic element 70 pushes the rotating shaft 51, causing the cantilever 52 to press against the movable part 30 and abut against the stepped surface 32. When the rotating shaft 51 rotates, the cantilever 52 overcomes the elastic force of the second elastic element 70 and rotates with the rotating shaft 51. The stepped surface 32 is no longer supported by the cantilever 52. If the laser head-assisted focusing device also includes a first elastic element 60, the first elastic element 60 releases its elastic force, pushing the movable part 30 and the probe 40 downwards together, causing the probe 40 to switch to the released state. If the laser head-assisted focusing device does not have a first elastic element 60, the movable part 30 and the probe 40 move downwards under gravity. The movable part 30 abuts against the inner side of the bottom wall of the housing 10, causing the probe 40 to switch to the released state and constraining the movable part 30 in the second position.

[0067] During the return of probe 40 to its initial position, an external force pushes probe 40 upwards, causing movable part 30 to move accordingly and overcome the elastic force of second elastic part 70, thus moving cantilever 52 below step surface 32. During this process, if the laser head-assisted focusing device also includes a first elastic part 60, the first elastic part 60 accumulates energy during the upward movement of movable part 30 to prepare for the next switching of probe 40's state. The second elastic part 70 pushes cantilever 52 to press against movable part 30, preventing cantilever 52 from detaching from step surface 32. In the absence of a first elastic part 60 in the laser head-assisted focusing device, cantilever 52 is pressed against movable part 30 by the pushing force of the second elastic part 70, preventing the engagement between cantilever 52 and movable part 30 from loosening under external vibration and improving locking stability.

[0068] Optionally, the second elastic element 70 can be a spring or a shape memory alloy, or other elastic structure. For example, the second elastic element 70 can be a compression spring or a tension spring. It should be noted that the end of the second elastic element 70 is connected to the housing 10, or only contacts the inner wall of the housing 10. Similarly, the end of the second elastic element 70 can be connected to or abut against the locking element 50.

[0069] In some specific embodiments of this application, see [reference]. Figure 5 and Figure 6 The housing 10 includes a front housing 11 and a rear cover 12, which are detachably connected. The front housing 11 and the rear cover 12 are fixedly connected by screws or clips to facilitate the installation of internal structural components. The front housing 11 has a first groove, and the rear cover 12 has a second groove. The front housing 11 and the rear cover 12 are connected so that the first groove and the second groove mate to accommodate the rotating shaft 51.

[0070] Both the first and second grooves are semi-circular grooves. After the front shell 11 and the rear cover 12 are connected, the first and second grooves are spliced ​​together to form a circular hole. The rotating shaft 51 is inserted into the circular hole and can rotate within the circular hole.

[0071] See Figure 3 and Figure 4 The laser head-assisted focusing device also includes a first magnetic element 80, at least one of which is fixed to the housing 10.

[0072] The number of first magnetic elements 80 can be one or more. In some embodiments, the first magnetic element 80 is a circular magnetic block, and multiple first magnetic elements 80 are distributed on the rear cover 12 of the housing 10. In other embodiments, the first magnetic element 80 is a bar magnet or an arc magnet with a certain length to improve the stability of the engagement with the mounting base 110.

[0073] In some specific embodiments, the locking member 50 further includes an operating part 53, which is connected to the rotating shaft 51 and extends to the outside of the housing 10.

[0074] In some embodiments, the operating part 53 is exposed outside the housing 10 and is cam-shaped. When the fixed boss 120 pushes the operating part 53 upward, the outer contour of the cam-shaped operating part 53 rotates under the action of the fixed boss 120, causing the rotating shaft 51 to rotate relative to the housing 10, thereby adjusting the engagement state between the cantilever 52 and the stepped surface 32. (See also...) Figure 13 and Figure 14 The fixed boss 120 pushes against the operating part 53, and the cantilever 52 rotates to the right under the drive of the rotating shaft 51, causing the cantilever 52 to disengage from the stepped surface 32. Under the action of gravity, the length of the probe 40 exposed outside the housing 10 increases. In some other embodiments, the fixed boss 120 pushes the operating part 53 from the side, causing the rotating shaft 51 to rotate. In this case, the shape of the operating part 53 is not specifically limited, as long as the operating part 53 is exposed outside the housing 10.

[0075] The extension direction of the rotating shaft 51 is perpendicular to the moving direction of the probe 40. For example... Figure 7 and Figure 8 As shown, the rotating shaft 51 extends horizontally, and the probe 40 is movable in the vertical direction. The cantilever 52 is perpendicular to the rotating shaft 51, and under the drive of the rotating shaft 51, the cantilever 52 can rotate around the horizontal direction. Specifically, the operating part 53 drives the rotating shaft 51 to rotate under the action of external force, thereby driving the cantilever 52 away from the movable member 30, so that the cantilever 52 separates from the step surface 32. The movable member 30 and the probe 40 move under the action of the first elastic member 60 and gravity. The probe 40 extends out of the housing 10 and switches to the released state. When it is necessary to retract the probe 40, the external force pushes the probe 40 upward. After the probe 40 drives the movable member 30 past the end of the cantilever 52, the second elastic member 70 pushes the cantilever 52 to press against the movable member 30, so that the step surface 32 abuts against the end of the cantilever 52. Thus, the movable member 30 is supported by the cantilever 52, and the movable member 30 is stabilized in the first position under the combined action of the cantilever 52 and the first elastic member 60. In some embodiments, the extension direction of the rotating shaft 51 is parallel to the movement direction of the probe 40, and the cantilever 52 is perpendicular to the rotating shaft 51. The sidewall of the cantilever 52 extending along its length abuts against the step surface 32. Under the action of an external force, the operating part 53 drives the rotating shaft 51 to rotate, thereby moving the cantilever 52 away from the movable member 30. At this time, the movable member 30 can move under the action of gravity and the first elastic member 60. When it is necessary to retract the probe 40, the probe 40 drives the movable member 30 to move upward under the action of an external force. The cantilever 52 flips and avoids the probe 40 as it moves upward. After the step surface 32 passes the cantilever 52, the cantilever 52 presses against the movable member 30 under the action of the second elastic member 70, so that the step surface 32 abuts against the side of the cantilever 52. At this time, the first elastic member 60 stores force, and with the cooperation of the first elastic member 60 and the cantilever 52, the movable member 30 is fixed in a first position.

[0076] See Figure 11 and Figure 12 This application also provides a laser device, which includes a laser head 130 and a laser head auxiliary focusing device as described above, with the housing 10 connected to the laser head 130.

[0077] The laser head 130 is connected to the mounting base 110, and the housing 10 is also connected to the mounting base 110. (See reference...) Figure 12 The mounting base 110 is equipped with a second magnetic element 111. When the laser head auxiliary focusing device is mounted on the mounting base 110, the second magnetic element 111 and the first magnetic element 80 are attracted together. Optionally, the number of first magnetic elements 80 and the number of second magnetic elements 111 are the same, and they are arranged in a one-to-one correspondence. (See reference...) Figure 3 and Figure 4 There are three first magnetic elements 80 arranged in a triangular pattern. Correspondingly, the mounting base 110 has three second magnetic elements 111, each corresponding to one of the three first magnetic elements 80. Alternatively, the first magnetic elements 80 may be strip-shaped, and there may be multiple second magnetic elements 111, spaced apart along the extension direction of the first magnetic elements 80. This application does not specifically limit the arrangement of the first magnetic elements 80 and the second magnetic elements 111, as long as they can attract each other to achieve a fixed connection between the housing 10 and the mounting base 110.

[0078] like Figure 2 and Figure 4 As shown, the laser head-assisted focusing device also includes a spring pin 90, which is electrically connected to the first photoelectric switch 21 and the second photoelectric switch 22. (See reference...) Figure 12 The mounting base 110 is provided with a solder pad 113. After the housing 10 is attracted and fixed together with the mounting base 110, the spring pin 90 is inserted into the solder pad 113 so that the signals of the two photoelectric switches can be transmitted to the internal circuit of the laser head 130.

[0079] The laser head 130 can move left and right, forward and backward, and up and down with the laser device, such as... Figures 13 to 16 The diagram shows a fixed boss 120 inside the laser device. This boss is used for focusing, such as... Figure 13 As shown, the laser head 130 is positioned above the fixed boss 120 until the operating part 53 of the locking member 50 contacts the fixed boss 120. Then, the laser head 130 is pressed down, and the operating part 53 drives the rotating shaft 51 to rotate, causing the cantilever 52 to rotate away from the step surface 32. The movable member 30 moves down, and the probe 40 is released downward. At this time, the state of the laser head 130 is as follows. Figure 14 As shown.

[0080] When it is necessary to retract probe 40 to its initial position, laser head 130 moves above fixed boss 120, positioning probe 40 directly above fixed boss 120. Figure 15As shown. Then the laser head 130 moves downward, the probe 40 is held against the fixed boss 120 and moves upward relative to the housing 10 until the cantilever 52 abuts against the stepped surface 32, as shown. Figure 16 As shown, the movable part 30 is locked back in the first position.

[0081] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A laser head-assisted focusing device, characterized in that: include: Shell (10); A movable component (30) is movably installed within the housing (10), the movable component (30) having a stepped surface (32); The probe (40) is inserted and fixed to the movable part (30); The locking component (50) includes a rotating shaft (51) and a cantilever (52). The rotating shaft (51) is rotatably mounted inside the housing (10), and the cantilever (52) is fixed to the rotating shaft (51). The cantilever (52) causes the locking component (50) to switch between a locked state and an unlocked state as the rotating shaft (51) rotates. When the locking member (50) is in the locked state, the cantilever (52) abuts against the step surface (32), locking the movable member (30) in a first position within the housing (10), and the probe (40) is in the retracted state; when the locking member (50) is in the unlocked state, the cantilever (52) separates from the step surface (32), the movable member (30) can move relative to the housing (10), and the probe (40) is in the released state.

2. The laser head-assisted focusing device as described in claim 1, characterized in that: It also includes a status recognition sensor (20), which is fixed inside the housing (10) and is used to identify the current position of the probe (40).

3. The laser head-assisted focusing device as described in claim 2, characterized in that: The state recognition sensor (20) includes a first photoelectric switch (21) and a second photoelectric switch (22). The first photoelectric switch (21) is located above the second photoelectric switch (22). The movable part (30) has a baffle (31). When the probe (40) is in the retracted state, the baffle (31) is located in the photoelectric groove of the first photoelectric switch (21) and / or the second photoelectric switch (22). When the probe (40) is in the released state and extends to its maximum length outside the housing (10), the baffle (31) is located below the second photoelectric switch (22).

4. The laser head-assisted focusing device as described in claim 1, characterized in that: It also includes a first elastic element (60); the first elastic element (60) is sandwiched between the movable element (30) and the inner wall of the housing (10), and when the movable element (30) is locked in the first position, the first elastic element (60) is in a stored state.

5. The laser head-assisted focusing device as described in claim 4, characterized in that: The first elastic element (60) is sleeved on the probe (40).

6. The laser head-assisted focusing device as described in claim 1, characterized in that: It also includes a second elastic element (70), which is sandwiched between the cantilever (52) and the inner wall of the housing (10) to keep the cantilever (52) abutting against the step surface (32).

7. The laser head-assisted focusing device as described in claim 1, characterized in that: The housing (10) includes a front shell (11) and a rear cover (12). The front shell (11) is provided with a first groove, and the rear cover (12) is provided with a second groove. The front shell (11) and the rear cover (12) are detachably connected so that the first groove and the second groove are connected to accommodate the rotating shaft (51).

8. The laser head-assisted focusing device as described in claim 1, characterized in that: It also includes a first magnetic element (80), at least one of which is fixed to the housing (10).

9. The laser head-assisted focusing device as described in claim 1, characterized in that: The locking member (50) also includes an operating part (53), which is connected to the rotating shaft (51) and extends to the outside of the housing (10).

10. A laser device, characterized in that: Includes a laser head (130) and a laser head-assisted focusing device as described in any one of claims 1 to 9, wherein the housing (10) is connected to the laser head (130).

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