Position detection assembly, laser and laser processing equipment

Abstract

The utility model provides a position detection assembly, a laser and a laser processing device, the position detection assembly comprises a housing, an induction module and a reset member, the housing is provided with an accommodating cavity, and is provided with a first through hole communicated with the accommodating cavity; the induction module comprises a movable part, a trigger part and an induction part, and the movable part movably penetrates through the first through hole and is provided with a first position and a second position; the trigger piece and the induction piece are both located in the containing cavity, one of the trigger piece and the induction piece is arranged on the movable piece, the other one of the trigger piece and the induction piece is connected with the shell, and when the movable piece is located at the first position, the trigger piece triggers the induction piece; the reset piece is arranged in the containing cavity and acts between the shell and the movable piece so that the movable piece can have the tendency to be kept at the second position. According to the technical scheme, the performance stability of the position detection assembly used for detecting the displacement and position of a movable structure such as a laser module can be improved.

Description

[0001] Related Applications

[0002] The present application claims priority to Chinese patent applications No. 202410111345.8 and 202410108594.1, filed on January 25, 2024, the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0003] The utility model laser processing relates to technical field, especially in a position detection subassembly, laser and laser processing equipment. BACKGROUND

[0004] In the laser processing equipment such as laser engraving machine and laser marking machine, in order to process the laser position of different height, laser module is usually set up to be liftable, and before each laser processing, laser module needs to be moved to the initial position to ensure that laser module accurately processes on workpiece. In related technology, sensing module such as photoelectric switch is arranged in laser processing equipment, the trigger of sensing module is directly connected with laser module to approach or away from sensing module along with laser module;But the environment of laser processing has a lot of oil stains and dust, which can affect the detection accuracy and performance stability of sensing module, for example, the photoelectric of photoelectric switch is blocked by oil stains and dust, which causes false triggering and reset failure. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a position detection subassembly, laser and laser processing equipment, which aims to improve the performance stability of the position detection subassembly for detecting the displacement and position of movable structures such as laser module.

[0006] To achieve the above purpose, the utility model provides a position detection subassembly, which comprises:

[0007] A shell is provided with a containing cavity and a first through hole communicating with the containing cavity;

[0008] A sensing module comprises a movable piece, a trigger and a sensing piece, the movable piece is movably arranged in the first through hole and has a first position and a second position;

[0009] The trigger and the sensing piece are located in the containing cavity, one of the trigger and the sensing piece is arranged on the movable piece, the other of the trigger and the sensing piece is connected with the shell, and the trigger triggers the sensing piece when the movable piece is in the first position;And

[0010] A reset piece is arranged in the containing cavity and acts between the shell and the movable piece, so that the movable piece has the tendency to keep in the second position.

[0011] In an embodiment of the present application, the reset member is an elastic member, which is arranged between the movable member and the cavity wall of the accommodating cavity along the moving direction of the trigger member, and the elastic member is in a compressed state when the movable member is in the second position.

[0012] In an embodiment of the present application, the shell has a top wall arranged opposite to the first through hole, one end of the movable member towards the top wall is provided with a limiting column, and the elastic member is sleeved on the limiting column.

[0013] In an embodiment of the present application, one end of the movable member towards the top wall is provided with a limiting hole, and part of the limiting column is inserted into the limiting hole.

[0014] Alternatively, the limiting column is integrally formed with the movable member.

[0015] In an embodiment of the present application, the shell is provided with a second through hole arranged opposite to the first through hole, and two ends of the movable member are movably inserted into the second through hole and the first through hole, respectively.

[0016] And / or, the movable member comprises a stop portion and a plug-in portion connected with each other, the plug-in portion is inserted through the first through hole, the stop portion is located in the accommodating cavity, the stop portion abuts against the cavity wall provided with the first through hole when the trigger member is in the second position, the trigger member or the sensing member is arranged on the stop portion, and the reset member is connected between the stop portion and the shell.

[0017] And / or, the accommodating cavity is provided with a positioning structure, the positioning structure forms a positioning area in the accommodating cavity, and part of the movable member is limitedly installed in the positioning area.

[0018] In an embodiment of the present application, the sensing member has a transmitting portion and a receiving portion arranged opposite to each other.

[0019] When the movable member is in the first position, the trigger member is located between the transmitting portion and the receiving portion, so as to block the signal path between the transmitting portion and the receiving portion.

[0020] In an embodiment of the present application, the sensing module further comprises a circuit board, the circuit board is arranged in the accommodating cavity, the sensing member is arranged on the circuit board and electrically connected with the circuit board, and the trigger member is arranged on the movable member.

[0021] In an embodiment of the present application, the shell is provided with a connecting port communicating with the accommodating cavity, and the circuit board is provided with a connecting seat facing the connecting port.

[0022] The application also provides a laser device, which comprises:

[0023] A shell;

[0024] The position detection assembly as described in any one of the preceding embodiments is arranged in the shell; and

[0025] The laser module is arranged in the shell in a liftable manner and can abut against the movable piece of the position detection assembly in the ascending stroke to push the movable piece to move to the first position.

[0026] In an embodiment of the application, the laser device further comprises a mounting plate arranged in the shell, at least part of the laser module is arranged on one side of the mounting plate in a liftable manner, the shell of the position detection assembly is arranged on the surface of the mounting plate away from the laser module, the mounting plate is provided with a relief hole, and the movable piece is arranged to extend towards the laser module through the relief hole.

[0027] The application also provides a laser processing device, which comprises the position detection assembly or the laser device as described in any one of the preceding embodiments.

[0028] The technical scheme of the utility model provides a position detection assembly which can be applied in a laser processing device, the position detection assembly is arranged by containing the sensing piece of the sensing module and part of the triggering piece for triggering the sensing piece in the shell, only part of the triggering piece is protruded outside the shell and can be kept in the second position by the action of the reset piece, so as to abut against the structure to be detected such as the laser module in the laser processing device. For example, when the laser module is reset, the laser module can push the triggering piece to move from the second position to the first position, so that the sensing piece generates a sensing signal to prompt that the laser module has been reset to the original position. Since the sensing piece and part of the triggering piece for triggering the sensing piece are contained in the shell, the sensing piece and part of the triggering piece for triggering the sensing piece are not interfered by the dust and oil stains and other sundries in the external environment, the performance stability of the position detection assembly is ensured, and the accuracy of the reset of the laser module is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings from the structures shown in the drawings without creating creative labor.

[0030] Figure 1 It is the structural diagram of an embodiment of the laser device of the application;

[0031] Figure 2 It isFigure 1 Structure diagram of the middle laser removing shell;

[0032] Figure 3 Structure diagram of an embodiment of the position detection assembly of the application;

[0033] Figure 4 For Figure 3 Sectional view of the position detection assembly;

[0034] Figure 5 For Figure 3 Exploded view of the position detection assembly;

[0035] Figure 6 For Figure 5 Structure diagram of the lower shell.

[0036] Explanation of the reference signs:

[0037]

[0038]

[0039] The implementation, functional features and advantages of the utility model will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0041] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications will also change accordingly.

[0042] In the utility model, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0043] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implying the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.

[0044] The utility model provides a position detection assembly 10.

[0045] Please refer to Figure 3 And Figure 4 In some embodiments of the present application, the position detection assembly 10 includes a shell 11, an induction module 13 and a reset member 15, the shell 11 is provided with a receiving cavity 113, and a first through hole 114 communicating with the receiving cavity 113 is formed; the induction module 13 includes a movable member 131, a trigger member 133 and an induction member 135, the movable member 131 is movably arranged in the first through hole 114 and has a first position and a second position; the trigger member 133 and the induction member 135 are located in the receiving cavity 113, one of the trigger member 133 and the induction member 135 is arranged on the movable member 131, and the other of the trigger member 133 and the induction member 135 is connected with the shell 11, the trigger member 133 triggers the induction member 135 when the movable member 131 is at the first position; the reset member 15 is arranged in the receiving cavity 113 and acts between the shell 11 and the movable member 131, so that the movable member 131 has a tendency to be kept at the second position.

[0046] Specifically, the shell 11 is the installation base of the position detection assembly 10, and a receiving cavity 113 is formed in the shell 11. The shell 11 can have a cuboid, square, cylinder, prism or other regular or irregular structure, and the receiving cavity 113 formed in the shell 11 can be shaped according to the outer contour of the shell 11 or have another shape. The shell 11 can include an upper shell 111 and a lower shell 112 that are coupled to each other, or can have a side opening door structure to open the receiving cavity 113 to disassemble the internal structure. The movable part 131 of the sensing module 13 extends out of the receiving cavity 113 through a first through hole 114 formed in the shell 11, and can slide along the central axis of the first through hole 114 relative to the shell 11 and have a first position and a second position. In addition, a reset part 15 is arranged between the movable part 131 and the shell 11. The reset part 15 can be an elastic part such as a spring, a gas spring, an elastic air bag, etc. The elastic part can be arranged on the side of the top wall opposite the first through hole 114 and apply an elastic pushing force to the movable part 131 towards the side of the first through hole 114, so that the movable part 131 has a tendency to move from the first position to the second position and remain in the second position. The elastic part can also be arranged on the cavity wall where the first through hole 114 is formed and connected to the movable part 131 to apply an elastic pulling force to the movable part 131, so that the movable part 131 also has a tendency to move from the first position to the second position and remain in the second position. The reset part 15 can also be a magnetic structure. The magnetic structure can include a first magnetic part and a second magnetic part arranged on the movable part 131 and the shell 11, respectively. The first magnetic part and the second magnetic part can have a magnetic attraction force, which makes the movable part 131 have a tendency to move from the first position to the second position and remain in the second position. The first magnetic part and the second magnetic part can also have a magnetic repulsion force, which can be used to push the movable part 131 to have a tendency to move from the first position to the second position and remain in the second position.

[0047] When the movable part 131 is moved into the receiving cavity 113 by an external force, the action force applied by the reset part 15 to the movable part 131 can be overcome. When the external force acting on the movable part 131 is removed, the action force applied by the reset part 15 to the movable part 131 can move the movable part 131 to the second position.

[0048] The induction module 13 further comprises a trigger 133 and an induction element 135 arranged in the accommodating cavity 113. The induction element 135 can be connected with the shell 11, and the trigger 133 is arranged on the movable element 131 and moves with the movable element 131 relative to the induction element 135. When the movable element 131 moves from the second position to the first position, the trigger 133 triggers the induction element 135 to generate an induction signal. In the embodiment of the present application, the trigger 133 can also be connected with the shell 11, and the induction element 135 is arranged on the movable element 131 and moves with the movable element 131 relative to the trigger 133. When the movable element 131 moves from the second position to the first position, the trigger 133 also triggers the induction element 135 to generate an induction signal.

[0049] The induction element 135 can be a Hall sensor, a photoelectric switch, a proximity switch, a grating reading head, etc. For example, the induction element 135 is a Hall sensor, and the trigger 133 is a magnet. When the trigger 133 moves with the movable element 131 between the first position and the second position, the magnetic field strength around the Hall sensor changes, for example, from weak to strong or from strong to weak. The magnetic field strength detected by the Hall sensor when the trigger 133 is in the first position is used as a trigger condition, so that the Hall sensor generates an induction signal when the trigger 133 reaches the first position. If the proximity switch is used as the induction element 135, the trigger 133 can touch the sensing surface of the proximity switch when the movable element 131 is in the first position, so that the proximity switch generates an induction signal. If the grating reading head is used as the induction element 135, the trigger 133 is a scale grating extending along the moving direction of the movable element 131. When the movable element 131 moves from the second position to the first position, the scale grating moves relative to the grating reading head. The grating reading head can read the displacement of the scale grating relative to the grating reading head, and convert the displacement into an electrical signal to obtain displacement data through a signal processing circuit. Thus, an induction signal can be generated when the trigger 133 moves a corresponding distance from the second position to the first position. The use method of other structures as the induction module 13 is not described here.

[0050] The trigger 133 and the induction element 135 are arranged in the accommodating cavity 113, so they will not be contaminated and disturbed by dust, oil stains and other impurities from the outside, thereby reducing the risk of detection failure or false triggering and ensuring the stable performance and detection accuracy of the position detection assembly 10.

[0051] The position detection assembly 10 of the present application can be applied to the displacement and position detection of movable objects, for example, in machine tools or equipment, and can be used to confirm whether the movable object has moved a preset distance or has moved to a preset position.

[0052] When the position detection assembly 10 is applied in a laser processing device, the laser processing device is provided with a laser 100, which is at least partially translatable along at least one of the X direction and the Y direction perpendicular to each other, or at least partially liftable, for example, only the laser module 50 in the laser 100 is liftable, or the entire laser 100 is liftable. In the laser processing device, the position detection assembly 10 can be used to detect the reset position of the laser 100 in the X direction, or the reset position of the laser 100 in the Y direction and the reset position of the laser 100 in the height direction, or the reset position of the laser module 50 in the laser 100 in the height direction.

[0053] Please refer to Figure 2 For example, taking the detection of the reset position of the laser module 50 in the laser 100 in the height direction as an example, the position detection assembly 10 can be arranged in the laser module 50, and the trigger 133 of the position detection assembly 10 is arranged opposite to at least part of the laser module 50 in the height direction. When the laser module 50 rises relative to the shell 11 to reset to the original position, the laser module 50 can push the trigger 133 to rise, and when the laser module 50 moves to the preset original position, the movable piece 131 is just moved to the first position to trigger the trigger 133 to trigger the sensing piece 135 to send a sensing signal indicating that the laser module 50 has completed the reset, and the sensing signal is fed back to the controller to control the laser module 50 to stop moving. In this way, the laser module 50 can be reset to the original position more accurately. Since the sensing piece 135 and the trigger 133 of the position sensing module 13 are located in the shell 11, the dust and oil outside will not affect this part of the structure, so the performance of the position detection assembly 10 can be ensured stable, thereby ensuring that the position detection assembly 10 can accurately detect the state information of the laser module 50 when reaching the reset position and make feedback.

[0054] Therefore, it can be understood that the technical scheme of the utility model provides a position detection assembly 10 applicable in a laser processing equipment, the position detection assembly 10 is used for accommodating the sensing part 135 of the sensing module 13 and the trigger part 133 for triggering the sensing part 135 in the shell 30, only part of the movable part 131 is protruded outside the shell 30, and the movable part 131 can be kept in the second position by the restoring part 15, so as to abut against the movable structure to be detected, such as the laser module 50 in the laser processing equipment. For example, when the laser module 50 is reset, the laser module 50 can push the movable part 131 to move from the second position to the first position, and when the movable part 131 is in the first position, the trigger part 133 triggers the sensing part 135 to make the sensing part 135 generate an induction signal to prompt that the laser module 50 has been reset to the required position. Since the sensing part 135 and the trigger part 133 for triggering the sensing part 135 are accommodated in the shell 30, the sensing part 135 is not interfered by dust, oil stains and other sundries outside, the performance of the position detection assembly 10 is stable, the position detection assembly 10 can accurately detect the state information of the laser module 50 when the laser module 50 reaches the reset position and make feedback, and the accuracy of the reset of the laser module 50 is ensured.

[0055] Please refer to Figure 4 and Figure 5 In some embodiments of the present application, the restoring part 15 is an elastic part, the elastic part is arranged between the movable part 131 and the cavity wall of the accommodating cavity 113 along the moving direction of the trigger part 133, and the elastic part is in a compressed state when the movable part 131 is in the second position.

[0056] In the embodiment, the restoring part 15 can be a spring, a gas spring, an elastic air bag or the like, the elastic part can be arranged on the side of the top wall opposite to the first through hole 114 and located between the top wall and the movable part 131, and the elastic part is in a compressed state when the movable part 131 is in the second position, so as to apply an elastic pushing force to the movable part 131 towards the side of the first through hole 114, and the movable part 131 has a tendency to move from the first position to the second position and keep in the second position.

[0057] In some embodiments, the elastic part can also be arranged on the cavity wall provided with the first through hole 114 and connected with the movable part 131, and the elastic part is in a stretched state when the movable part 131 is in the second position, and the elastic part applies an elastic pulling force to the movable part 131, so that the movable part 131 also has a tendency to move from the first position to the second position and keep in the second position.

[0058] Specifically, when the movable element 131 is not subjected to external force, the movable element 131 is subjected to the elastic force of the elastic element and is in the second position; during the movement of the movable element 131 into the accommodating cavity 113 under the external force to move to the first position, the elastic element is subjected to elastic deformation and generates an elastic force opposite to the direction of the external force; when the external force acting on the movable element 131 is removed, the elastic element restores its shape and moves the movable element 131 to the second position.

[0059] Please refer to Figure 4 In some embodiments of the present application, the shell 11 has a top wall opposite to the first through hole 114, and the end of the movable element 131 facing the top wall is provided with a limiting column 1315, and the elastic element is sleeved on the limiting column 1315.

[0060] In the present embodiment, the shell 11 has a top wall opposite to the first through hole 114, and the elastic element is arranged between the top wall of the accommodating cavity 113 and the movable element 131, at this time, the elastic element applies an elastic pushing force to the movable element 131 towards the side of the first through hole 114.

[0061] Meanwhile, the end of the movable element 131 facing the top wall is provided with a limiting column 1315, which can be integrally formed with the movable element 131, or can be detachably or non-detachably connected with the movable element 131. In addition, the elastic element is sleeved on the limiting column 1315, for example, a spring is sleeved on the limiting column 1315, or an elastic air bag is arranged as a ring-shaped inflatable ring to be sleeved on the limiting column 1315; or the piston rod of the gas spring is arranged as a hollow rod to be sleeved on the limiting column 1315. In this way, the position stability of the elastic element can be improved, the elastic element can be prevented from being deviated, the elastic element can be ensured to stably act on the movable element 131, and the overall structural stability and performance stability of the position sensor can be ensured.

[0062] Please refer to Figure 4 and Figure 5 In some embodiments of the present application, the end of the movable element 131 facing the top wall is provided with a limiting hole 1317, and part of the limiting column 1315 is inserted into the limiting hole 1317; or the limiting column 1315 is integrally formed with the movable element 131.

[0063] In this embodiment, the limiting column 1315 can be integrally formed with the movable piece 131. In this way, the limiting column 1315 and the movable piece 131 have high connection strength, the relative position between the limiting column 1315 and the movable piece 131 is stable, and the overall structural stability is improved. In some embodiments, the limiting column 1315 can also be detachably connected with the movable piece 131. When the limiting column 1315 is detachably connected with the movable piece 131, a limiting hole 1317 can be formed at the end of the movable piece 131 away from the first through hole 114, and part of the limiting column 1315 is inserted into the limiting hole 1317. In this way, the connection strength between the limiting column 1315 and the movable piece 131 can also be improved, so that the limiting column 1315 is not easy to be separated from the movable piece 131, thereby ensuring that the elastic piece stably acts on the movable piece 131 and improving the overall structural stability. In addition, the end of the elastic piece facing the movable piece 131 can also be inserted into the limiting hole 1317 to further limit the elastic piece. Of course, a mounting hole 1319 can also be formed in the end face of the movable piece 131, a limiting hole 1317 is formed in the bottom wall of the mounting hole 1319, and the end of the elastic piece is inserted into the mounting hole 1319 and abuts against the bottom wall of the mounting hole 1319. One end of the limiting column 1315 is inserted into the mounting hole 1319 and inserted into the limiting hole 1317.

[0064] In addition, in some embodiments, the limiting column 1315 can be inserted into the cavity wall of the accommodating cavity 113 opposite to the first through hole 114, thereby providing auxiliary positioning and limiting effect for the movable piece 131 and avoiding the deflection of the movable piece 131. At this time, the connection strength between the limiting column 1315 and the movable piece 131 is improved and the relative position between the limiting column 1315 and the movable piece 131 is stable, thereby avoiding the problem that the limiting column 1315 interferes with the movement of the movable piece 131 due to the deflection of the limiting column 1315.

[0065] Please refer to Figure 4 In some embodiments of the present application, the shell 11 is provided with a second through hole 115 opposite to the first through hole 114, and the two ends of the movable piece 131 are movably inserted into the second through hole 115 and the first through hole 114, respectively.

[0066] In the embodiment, the second through hole 115 can be arranged opposite to the first through hole 114 in the shell 11, for example, the second through hole 115 is arranged on the top wall opposite to the first through hole 114, or a limiting plate is arranged in the accommodating cavity 113, and the second through hole 115 is arranged in the limiting plate. One end of the movable element 131 in the accommodating cavity 113 is inserted into the second through hole 115. In this way, the first through hole 114 and the second through hole 115 arranged opposite to each other provide positioning and limiting effects for the movable element 131 at different positions in the length direction of the movable element 131, so as to avoid the movable element 131 from being deflected and to stably move the movable element 131 to the first position or the second position.

[0067] In the embodiment, the second through hole 115 can be arranged opposite to the first through hole 114 in the shell 11, for example, the second through hole 115 is arranged on the top wall opposite to the first through hole 114, or a limiting plate is arranged in the accommodating cavity 113, and the second through hole 115 is arranged in the limiting plate. One end of the movable element 131 in the accommodating cavity 113 is inserted into the second through hole 115. In this way, the first through hole 114 and the second through hole 115 arranged opposite to each other provide positioning and limiting effects for the movable element 131 at different positions in the length direction of the movable element 131, so as to avoid the movable element 131 from being deflected and to stably move the movable element 131 to the first position or the second position.

[0068] Please refer to Figure 4 and Figure 5 In some embodiments of the present application, the movable element 131 includes a stop portion 1311 and a plug-in portion 1313 connected to each other, the plug-in portion 1313 is arranged through the first through hole 114, the stop portion 1311 is arranged in the accommodating cavity 113, the stop portion 1311 abuts against the cavity wall in which the first through hole 114 is arranged when the trigger element 133 is arranged at the second position, the trigger element 133 or the sensing element 135 is arranged on the stop portion 1311, and the reset element 15 is connected between the stop portion 1311 and the shell 11.

[0069] In the embodiment, the movable element 131 includes a stop portion 1311 and a plug-in portion 1313 connected to each other, the width of the stop portion 1311 in at least one direction perpendicular to the length direction of the movable element 131 is greater than the width of the plug-in portion 1313 and the first through hole 114 in the direction. In this way, the plug-in portion 1313 is arranged through the first through hole 114, and the stop portion 1311 is arranged in the accommodating cavity 113. When the movable element 131 is not subjected to other external forces, the reset element 15 applies a force to the stop portion 1311 to move the movable element 131 outward. Since the stop portion 1311 cannot pass through the first through hole 114, the stop portion 1311 abuts against the cavity wall in which the first through hole 114 is arranged, so that the movable element 131 can be limited at the second position, and the movable element 131 is prevented from falling out of the accommodating cavity 113 completely. At this time, the trigger element 133 or the sensing element 135 of the sensing module 13 is arranged on the stop portion 1311, so that the sensing element 135 or the trigger element 133 arranged on the movable element 131 can always be kept in the accommodating cavity 113, and the sensing element 135 or the trigger element 133 arranged on the movable element 131 is prevented from being affected by foreign matters in the external environment.

[0070] Please refer to Figure 6In some embodiments of the present application, the accommodating cavity 113 is provided with a positioning structure 116, which forms a positioning area 1161 in the accommodating cavity 113, and part of the movable element 131 is limitedly installed in the positioning area 1161.

[0071] In the present embodiment, the positioning structure 116 is arranged in the accommodating cavity 113, and the positioning structure 116 can divide the accommodating cavity 113 to form a positioning area 1161 for installing the movable element 131. The positioning area 1161 can be completely enclosed by the positioning structure 116, for example, the positioning structure 116 is arranged as a surrounding edge along the circumference of the movable element 131 or at least two positioning elements are arranged along the circumference of the movable element 131. The positioning area 1161 can also be formed by the positioning structure 116 and the cavity wall of the accommodating cavity 113. Arranging part of the movable element 131 in the positioning area 1161 can also prevent the movable element 131 from being deflected, so that the movable element 131 can be stably moved to the first position or the second position, and the detection accuracy of the position detection assembly 10 is improved.

[0072] Please refer to Figure 5 In some embodiments of the present application, the sensing element 135 has a transmitting portion 1351 and a receiving portion 1353 arranged oppositely. When the movable element 131 is in the first position, the trigger element 133 is located between the transmitting portion 1351 and the receiving portion 1353, so as to interrupt the signal path between the transmitting portion 1351 and the receiving portion 1353.

[0073] In the present embodiment, the sensing module 13 includes a transmitting portion 1351 and a receiving portion 1353 arranged oppositely. When the movable element 131 moves between the first position and the second position, the trigger element 133 enters and exits between the transmitting portion 1351 and the receiving portion 1353, so as to interrupt the signal path between the transmitting portion 1351 and the receiving portion 1353, and hinder the receiving portion 1353 from receiving the signal sent by the transmitting portion 1351. The receiving portion 1353 normally receiving the signal sent by the transmitting portion 1351 can be regarded as a normal state, in which the movable element 131 is in the second position, and the trigger element 133 is located outside the transmitting portion 1351 and the receiving portion 1353. The receiving portion 1353 failing to receive the signal sent by the transmitting portion 1351 can be regarded as a trigger state, in which the movable element 131 is in the first position, and the trigger element 133 is located between the transmitting portion 1351 and the receiving portion 1353. In this way, when the receiving portion 1353 fails to normally receive the signal sent by the transmitting portion 1351, the sensing element 135 generates a sensing signal, indicating that the measured moving structure has moved a preset distance or has moved to a preset position.

[0074] In addition, the receiving portion 1353 can be unable to receive the signal sent by the sending portion 1351 as the normal state, at this time, the movable piece 131 is in the second position, and the trigger piece 133 is arranged between the sending portion 1351 and the receiving portion 1353; the receiving portion 1353 can normally receive the signal sent by the sending portion 1351 as the trigger state, at this time, the movable piece 131 is in the first position, and the trigger piece 133 is located outside the sending portion 1351 and the receiving portion 1353; in this way, when the receiving portion 1353 can normally receive the signal sent by the sending portion 1351, the sensing piece 135 generates a sensing signal, indicating that the measured moving structure has moved a preset distance or has moved to a preset position.

[0075] The sensing piece 135 can be a photoelectric switch, the sending portion 1351 can emit an optical signal to the receiving portion 1353, for example, the receiving portion 1353 can receive the optical signal as the normal state, and the receiving portion 1353 cannot receive the optical signal sent by the sending portion 1351 as the trigger state; when the receiving portion 1353 cannot normally receive the optical signal sent by the sending portion 1351, the sensing piece 135 generates a sensing signal, indicating that the measured moving structure has moved a preset distance or has moved to a preset position.

[0076] In addition, the receiving portion 1353 can also be a Hall sensor, the sending portion 1351 is arranged as a magnet, and the trigger piece 133 is arranged as a magnetic shielding piece; when the trigger piece 133 is arranged between the sending portion 1351 and the receiving portion 1353, the Hall sensor cannot sense a magnetic field or the sensed magnetic field strength is weakened. The receiving portion 1353 can be in the normal state when the Hall sensor senses a strong magnetic field, that is, when the trigger piece 133 is located outside the sending portion 1351 and the receiving portion 1353; the receiving portion 1353 can be in the trigger state when the trigger piece 133 is arranged between the sending portion 1351 and the receiving portion 1353, the Hall sensor senses a weakened magnetic field or cannot sense a magnetic field; when the Hall sensor senses a weakened magnetic field or cannot sense a magnetic field, the sensing piece 135 generates a sensing signal, indicating that the measured moving structure has moved a preset distance or has moved to a preset position.

[0077] Of course, the sensing piece 135 can also be other structures, such as a microwave sensor, and the like, which are not described herein.

[0078] Please refer to Figure 4 and Figure 5 In some embodiments of the present application, the trigger piece 133 is arranged on the movable piece 131, and the sensing piece 135 is connected with the shell 11.

[0079] In the embodiment, the trigger 133 can be connected to the movable member 131 or integrally arranged with the movable member 131. The inductor 135 is an electronic device, which usually needs power supply and feedback of the inductive signal. The inductor 135 can be provided with a power supply and feedback of the inductive signal through wireless transmission. In some embodiments, the inductor 135 needs to be connected with a wire for receiving power and feedback of the inductive signal, or the inductor 135 is arranged on the circuit board 17 in the following embodiment. Therefore, in the embodiment, the inductor 135 is fixed in the accommodating cavity 113, and the trigger 133 is arranged on the movable member 131 and moves with the movable member 131. In this way, the inductor 135 is prevented from moving to pull the wire connected with the inductor 135, thereby reducing the risk of breakage or damage of the wire and improving the stability of the electrical connection of the inductor 135, and ensuring the performance stability of the position detection assembly 10.

[0080] Please refer to Figure 4 and Figure 5 In some embodiments of the present application, the position detection assembly 10 further comprises a circuit board 17 arranged in the accommodating cavity 113, the inductor 135 is arranged on the circuit board 17 and electrically connected with the circuit board 17, and the trigger 133 is arranged on the movable member 131.

[0081] In the embodiment, the position detection assembly 10 further comprises a circuit board 17 arranged in the accommodating cavity 113, the inductor 135 is arranged on the circuit board 17 and electrically connected with the circuit board 17, and the trigger 133 is arranged on the movable member 131.

[0082] Please refer to Figure 3 and Figure 5 In some embodiments of the present application, the shell 11 is provided with a connecting port 117 communicating with the accommodating cavity 113, and the circuit board 17 is provided with a connecting seat 171 facing the connecting port 117.

[0083] In the embodiment, the shell 11 is provided with a connecting port 117 communicating with the accommodating cavity 113, and the circuit board 17 is provided with a connecting seat 171 facing the connecting port 117.

[0084] Please refer to Figure 1 and Figure 2 The application also provides a laser 100, which comprises a shell 30, a laser module 50, and the position detection assembly 10 in any of the preceding embodiments, the position detection assembly 10 is arranged in the shell 30, and at least part of the laser module 50 is arranged in the shell 30 in a lifting manner and can abut against the movable piece 131 of the position detection assembly 10 in the ascending stroke to push the movable piece 131 to move to the first position.

[0085] The laser 100 of the application can be a laser processing head in a laser processing device such as a laser engraving machine, a laser cutting machine, or a laser marking machine, or can be a laser ranging or positioning structure for emitting laser in a device for laser ranging or positioning. The laser 100 comprises the shell 30 and the laser module 50, the laser module 50 is a structure for generating and emitting laser in the laser 100, and in some embodiments, the laser 100 can also be provided with a heat dissipation structure, a dust removal air path structure, etc. In the embodiment, the laser module 50 can be lifted relative to the shell 11, or only part of the structure of the laser module 50 can be lifted relative to the shell 11, for example, the laser module 50 comprises a laser source and a flying light path structure, the laser source generates laser, and the flying light path structure can guide and emit laser to the required position, and only the flying light path structure can be lifted. In this way, in the laser processing device, the shell 11 of the laser 100 is always kept at a fixed height position, so that the connection relationship between the laser 100 and the installation position can be avoided to change due to the movement of the laser 100 as a whole, and the electrical connection and air path connection between the laser 100 and the laser processing device can be kept stable. At least the flying light path in the laser module 50 is lifted, so that the light outlet of the laser 100 can be adjusted in height according to the processing position, and the air flow for dust removal at the light outlet position cannot play a good role in dust removal at the processing position due to the too far distance between the light outlet and the processing position.

[0086] In addition, the position detection assembly 10 in the laser 100 is arranged as in any of the foregoing embodiments, and is used to detect the reset position of the liftable partial laser module 50. The position detection assembly 10 is arranged in the housing 30 and is arranged opposite the liftable partial structure. When the liftable partial structure is reset, the laser module 50 can abut against the part of the movable member 131 exposed to the outside of the position detection assembly 10 at least in the last stroke to the reset position, and push the movable member 131 to move to the first position during the reset process. When the laser module 50 is reset to the preset original position, the movable member 131 is just moved to the first position so that the trigger member 133 triggers the sensing member 135 to send a sensing signal indicating that the laser module 50 has been reset, and the sensing signal is fed back to the controller to control the laser module 50 to stop moving. In this way, the laser module 50 can be reset to the original position more accurately. Since the sensing member 135 and the trigger member 133 of the position sensing module 13 are located in the shell 11, the dust and oil in the outside environment will not affect this part of the structure, so that the performance of the position detection assembly 10 can be ensured to be stable, thereby ensuring that the position detection assembly 10 can accurately detect the state information of the laser module 50 when reaching the reset position and make feedback.

[0087] Since the laser 100 of the present application applies all the technical solutions of the foregoing embodiments, it has all the beneficial effects brought by the foregoing technical solutions, which will not be repeated here.

[0088] Please refer to Figure 2 In some embodiments of the present application, the laser 100 further comprises a mounting plate 70 arranged in the housing 30, and at least part of the laser module 50 is arranged liftable on one side of the mounting plate 70. The shell 11 of the position detection assembly 10 is arranged on the surface of the mounting plate 70 away from the laser module 50. The mounting plate 70 is provided with a relief hole, and the movable member 131 is arranged to extend towards the laser module 50 through the relief hole.

[0089] In this embodiment, the mounting plate 70 is arranged in the shell 11, which can be used to isolate the laser module 50 and the movable part 131; wherein the part structure of the laser module 50 that can be lifted is arranged below the mounting plate 70, and the main structure of the position detection assembly 10 is mounted on the surface of the mounting plate 70 away from the laser module 50, and the movable part 131 is arranged in the avoiding hole of the mounting plate 70, so that the movable part 131 can abut against the laser module 50. In this way, it can not only avoid the collision between the laser module 50 and the main structure of the position detection assembly 10 when the laser module 50 is lifted and reset, which can cause damage to the position detection assembly 10, but also can isolate the dust generated during the laser processing below, so as to avoid the dust from floating into the position detection assembly 10 and affecting the performance stability of the position detection assembly 10. In some embodiments, a heat dissipation fan or the like can also be arranged on the mounting plate 70, which can be used to drive air flow to dissipate heat in the internal space of the shell 30.

[0090] The application also provides a laser processing equipment, which comprises the position detection assembly 10 or the laser 100 according to any one of the preceding embodiments.

[0091] The laser processing equipment provided by the application can be a laser engraving machine, a laser cutting machine, a laser marking machine or other equipment using laser ranging or positioning. The laser 100 in the laser processing equipment can be translated at least in one of the X direction and the Y direction perpendicular to each other, so that the laser 100 can be moved to different positions for laser processing or ranging and positioning. In addition, the entire laser 100 can also be arranged to be lifted on the laser processing equipment, or the laser 100 of the preceding embodiment can be used, and only at least part of the structure of the laser module 50 in the laser 100 can be lifted. In this way, the light outlet of the laser 100 can be lifted and adjusted according to the height of the processing position, so as to avoid that the light outlet is too far away from the processing position, which can cause the air flow for dust removal of the light outlet to not play a good role in dust removal of the processing position.

[0092] In the embodiments of the application, the position detection assembly 10 of the preceding embodiment can be arranged in the laser processing equipment, for example, the position detection assembly 10 can be arranged to detect the reset position of the laser 100 in the X direction, or to detect the reset position of the laser 100 in the Y direction and the reset position of the laser 100 in the height direction, or to detect the reset position of the laser module 50 in the height direction in the laser 100. The laser processing equipment can also directly use the laser 100 of the preceding embodiment, and the position detection assembly 10 is arranged in the laser 100 to detect the reset position of the laser module 50 in the laser 100.

[0093] Since the laser processing equipment provided in the application applies all the technical solutions of all the foregoing embodiments, it at least has all the beneficial effects brought by all the foregoing technical solutions, which will not be repeated here.

[0094] The above only describes the preferred embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the utility model specification and the attached drawings, or direct / indirect application in other related technical fields under the utility model concept of the utility model is included in the patent protection range of the utility model.

Claims

1. A position detection component, characterized in that, include: The outer casing has a receiving cavity and a first through hole communicating with the receiving cavity; A sensing module, comprising a movable element, a trigger element, and a sensing element, wherein the movable element is movably disposed through the first through hole and has a first position and a second position; Both the trigger and the sensor are located within the accommodating cavity. One of the trigger and the sensor is disposed on the movable member, and the other of the trigger and the sensor is connected to the outer shell. When the movable member is in the first position, the trigger triggers the sensor. as well as A reset member is disposed in the receiving cavity and acts on the movable member to enable the movable member to have a tendency to remain in the second position.

2. The position detection component as described in claim 1, characterized in that, The reset member is an elastic member, which is located between the movable member and the cavity wall of the accommodating cavity. When the movable member is in the second position, the elastic member is in a compressed state.

3. The position detection component as described in claim 2, characterized in that, The outer shell has a top wall opposite to the first through hole, and a limiting post is provided at one end of the movable member facing the top wall, and the elastic member is sleeved on the limiting post.

4. The position detection component as described in claim 3, characterized in that, The movable part has a limiting hole at one end facing the top wall, and part of the limiting post is inserted into the limiting hole; Alternatively, the limiting post and the movable part are integrally formed.

5. The position detection component as described in claim 1, characterized in that, The outer casing has a second through hole that is opposite to the first through hole, and the two ends of the movable member are respectively movably inserted into the second through hole and the first through hole; And / or, the movable member includes a stop portion and a plug portion connected together, the plug portion passing through the first through hole, the stop portion being located in the receiving cavity, the stop portion abutting against the cavity wall with the first through hole when the trigger member is in the second position, the trigger member or the sensing member being disposed in the stop portion, and the reset member being connected between the stop portion and the outer shell; And / or, the accommodating cavity is provided with a positioning structure, the positioning structure forming a positioning area in the accommodating cavity, and a portion of the movable parts are limited and installed in the positioning area.

6. The position detection component as described in claim 1, characterized in that, The sensing element has a transmitting part and a receiving part arranged opposite to each other; When the movable component is in the first position, the trigger is located between the transmitting part and the receiving part, so that the trigger isolates the signal path between the transmitting part and the receiving part.

7. The position detection component as described in any one of claims 1 to 6, characterized in that, The position detection component further includes a circuit board disposed in the accommodating cavity, the sensing element disposed in the circuit board and electrically connected to the circuit board, and the triggering element disposed in the movable element.

8. A laser, characterized in that, The laser includes: case; The position detection component as described in any one of claims 1 to 7, wherein the position detection component is disposed in the housing; The laser module, at least a portion of which is elliptical and detachable from the housing, and which abuts against a movable part of the position detection component during its upward stroke to push the movable part to the first position.

9. The laser as claimed in claim 8, characterized in that, The laser also includes a mounting plate disposed within the housing. At least a portion of the laser module is ellipsably disposed on one side of the mounting plate. The housing of the position detection component is disposed on the surface of the mounting plate opposite to the laser module. The mounting plate has a clearance hole. The movable component passes through the clearance hole and extends toward the laser module.

10. A laser processing device, characterized in that, The laser processing equipment includes a position detection component as described in any one of claims 1 to 7, or a laser as described in claim 8 or 9.

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