A swing mechanism and centering mechanism of a laser cutting head

Abstract

The present invention discloses a swing mechanism and a centering mechanism of a laser cutting head, comprising: a body, on which a connecting tube for conducting laser is arranged; a mounting seat fixedly mounted on a movable frame, on which a conducting tube is arranged, which is rotatably mounted on the mounting seat and used for conducting laser, the connecting tube is hinged on the conducting tube, and a reflector is rotatably arranged on the conducting tube; and a movable rod, which is used to drive the connecting tube to rotate relative to the conducting tube. The swing mechanism and the centering mechanism of the laser cutting head provided by the invention, when it is necessary to adjust the inclination angle and direction of the body, the movable rod moves to drive the connecting tube to rotate relative to the conducting tube, the angle between the conducting tube and the connecting tube changes, and the reflector on the conducting tube also rotates at the same time, and the rotation angle of the reflector is half of the rotation angle of the connecting tube relative to the conducting tube, and the movable rod cooperates with the conducting tube to adjust the inclination angle and direction of the body, so that the body can cut out an inclined surface.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting heads, and in particular to a swing mechanism and a centering mechanism of a laser cutting head. Background Art

[0002] Laser cutting is a cutting method that uses a high-power density laser beam to irradiate the material to be cut, so that the material is quickly heated to the vaporization temperature and evaporates to form holes.

[0003] According to the publication (announcement) number CN109277704A, the publication (announcement) date is 2019.01.29, and a swinging laser cutting head is disclosed, comprising a collimation mechanism, a first reflector mechanism, a swinging mechanism, a second reflector mechanism, a focusing mechanism and an injection mechanism connected in sequence; the axis of the collimation mechanism and the axis of the focusing mechanism both intersect with the axis of the swing mechanism, and the swing mechanism can drive the second reflector mechanism to rotate around the axis of the swing mechanism; the laser is emitted from the collimation mechanism, reflected by the first reflector mechanism and emitted into the swing mechanism. The swing-type laser cutting head comprises a collimating mechanism, a first reflector mechanism, a swing mechanism, a second reflector mechanism, a focusing mechanism and an ejection mechanism which are connected in sequence; the axes of the collimating mechanism and the focusing mechanism intersect with the axes of the swing mechanism, and the swing mechanism can drive the second reflector mechanism to rotate around the axis of the swing mechanism; after being emitted from the collimating mechanism, the laser is reflected by the first reflector mechanism and injected into the swing mechanism, and after being emitted from the swing mechanism, the laser is reflected by the second reflector mechanism and injected into the focusing mechanism and then injected from the ejection mechanism; the focusing mechanism comprises a focusing seat body, and a motor module, a focusing lens seat and a focusing lens installed inside the focusing seat body; the focusing seat body is provided with a transmission channel for laser transmission along its own axis; the motor module is transmission-connected to the focusing lens seat, and is used to drive the focusing lens seat to move along the axis of the focusing mechanism in the transmission channel; the focusing lens is installed on the focusing lens seat.

[0004] In the prior art including the above-mentioned patents, most of the existing laser cutting heads are fixedly installed on the mobile frame of the CNC workbench. The mobile frame drives the laser cutting head to move to cut materials. In order to ensure the stability of laser transmission, the laser cutting heads are installed vertically. The cutting surfaces of the laser cutting heads are vertical and can only be used for preliminary division of materials. If a prism needs to be cut out from the sheet material, the laser cutting head needs to first cut out a rough shape of the blank, and then the staff will grind the side of the blank to change the vertical cutting surface into an inclined surface. Summary of the invention

[0005] The purpose of the present invention is to provide a swing mechanism and a centering mechanism for a laser cutting head, aiming to solve the problem that the cutting surface of a traditional laser cutting head can only be a vertical surface and cannot cut an inclined surface.

[0006] In order to achieve the above object, the present invention provides a swing mechanism of a laser cutting head, comprising:

[0007] A body, wherein a connecting tube for conducting laser light is provided on the body;

[0008] A mounting base fixedly mounted on the mobile frame is provided with:

[0009] A conducting tube, which is rotatably mounted on the mounting seat and is used to conduct laser light, the connecting tube is hinged on the conducting tube, and a reflector is rotatably arranged on the conducting tube;

[0010] A movable rod, which is used to drive the connecting tube to rotate relative to the conducting tube, wherein:

[0011] The conducting tube rotates to drive the connecting tube to rotate synchronously, the movable rod moves to make the connecting tube rotate relative to the conducting tube, the reflecting mirror rotates synchronously with the connecting tube, and the rotation angle is half of the rotation angle of the connecting tube relative to the conducting tube.

[0012] Preferably, a slide rail is provided on the movable rod, and a tenon block extending to the interior of the slide rail is movably provided on the connecting tube.

[0013] Preferably, a first movable ring is movably provided on the connecting tube, and a ball head extending to the interior of the tenon block is movably provided on the first movable ring.

[0014] Preferably, a push rod is rotatably provided on the movable rod, and a driving ring for driving the push rod to move is rotatably provided on the mounting seat.

[0015] Preferably, the mounting seat is internally provided with a driving rod and a movable block coupled with the driving rod to transmit power, and the movable block includes the following four stations:

[0016] In the first station, the driving ring rotates;

[0017] At the second station, the driving ring and the conducting tube rotate synchronously and in the same direction;

[0018] In the third station, the conduction tube rotates;

[0019] At the fourth station, the driving ring and the conducting tube rotate synchronously in opposite directions.

[0020] Preferably, the driving rod is provided with a first gear, the movable block is internally rotatably provided with a ring gear meshing with the first gear, and the conducting tube is provided with a synchronous cylinder adapted to the ring gear.

[0021] Preferably, the movable block is internally rotated with a second gear meshing with the first gear, and the second gear is coupled to the drive ring.

[0022] Preferably, the driving rod is provided with a synchronization block, the driving ring is provided with a synchronization zone, and the movable block is rotatably provided with a third movable ring coupled with the synchronization block and a second movable ring coupled with the synchronization zone.

[0023] Preferably, a top block is movably provided inside the mounting seat, and the top block moves to lock the conductive tube or the movable rod.

[0024] A centering mechanism for a laser cutting head includes the swinging mechanism of the laser cutting head in the above scheme, and also includes a shifting block fixedly mounted on the top block. When the movable block is in the first position or the third position, the shifting block is shifted to return the body to a vertical state.

[0025] In the above technical scheme, the present invention provides a swing mechanism and a centering mechanism of a laser cutting head, which have the following beneficial effects: when it is necessary to adjust the inclination angle and direction of the main body, the conductive tube brings the connecting tube into a synchronous state, so that the main body rotates relative to the axis of the mounting seat, and the inclination angle of the main body is adjusted. The movable rod moves to drive the connecting tube to rotate relative to the conductive tube, and the angle between the conductive tube and the connecting tube changes. At the same time, the reflector on the conductive tube also rotates, and the rotation angle of the reflector is half of the rotation angle of the connecting tube relative to the conductive tube, so that the laser transmitted through the conductive tube can always be transmitted to the connecting tube and the main body through the reflector, and the movable rod cooperates with the conductive tube to adjust the inclination angle and direction of the main body so that the main body can cut a bevel. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0027] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present invention;

[0028] Figure 2 A schematic diagram of the internal structure provided by an embodiment of the present invention;

[0029] Figure 3 A schematic diagram of the internal structure of an active block provided in an embodiment of the present invention;

[0030] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0031] Figure 5 A schematic structural diagram of a reflector provided in an embodiment of the present invention;

[0032] Figure 6 A schematic diagram of the internal structure of a connection block provided in an embodiment of the present invention;

[0033] Figure 7 for Figure 6 Enlarged view of point B in the middle;

[0034] Figure 8 A schematic diagram of the internal structure of a shift block provided in an embodiment of the present invention.

[0035] Description of reference numerals:

[0036] 1. Mounting seat; 11. Conducting tube; 111. Mounting table; 112. Gear ring; 113. Synchronous cylinder; 114. Top block; 115. First lever; 116. Guide groove; 117. Push block; 118. Lock block; 119. Second lever; 12. Drive rod; 121. First gear; 122. Second gear; 123. Movable block; 124. Third movable ring; 125. Second movable ring; 126. Synchronous block; 2. Main body; 21. Connecting tube; 211. First movable ring; 212. Connecting rod; 213. Ball head; 214. Tenon; 215. Slide rail; 216. Movable rod; 217. Push rod; 218. Drive ring; 22. Connecting block; 221. Reflector; 222. Extension rod. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings. Example

[0038] like Figure 1-8 As shown, a swing mechanism of a laser cutting head comprises:

[0039] A body 2, on which a connecting tube 21 for conducting laser light is disposed;

[0040] The mounting base 1 fixedly mounted on the mobile frame is provided with:

[0041] The conducting tube 11 is rotatably mounted on the mounting seat 1 and is used to conduct laser light. The connecting tube 21 is hinged on the conducting tube 11. A reflector 221 is rotatably arranged on the conducting tube 11.

[0042] The movable rod 216 is used to drive the connecting tube 21 to rotate relative to the conducting tube 11, wherein:

[0043] The conducting tube 11 rotates to drive the connecting tube 21 to rotate synchronously. The movable rod 216 moves to rotate the connecting tube 21 relative to the conducting tube 11. The reflector 221 rotates synchronously with the connecting tube 21, and the rotation angle is half of the rotation angle of the connecting tube 21 relative to the conducting tube 11.

[0044] Specifically, the mirror surface of the reflector 221 is on the same plane as the rotation axis of the connecting tube 21, a connecting block 22 is provided on the connecting tube 21, the connecting block 22 is rotatably installed on the conducting tube 11, an elastic sealing block is provided between the connecting block 22 and the conducting tube 11 for sealing the gap between the connecting block 22 and the conducting tube 11, and the main body 2 is specifically a laser cutting head.

[0045] Furthermore, when the tilt angle and direction of the main body 2 need to be adjusted, the conducting tube 11 synchronizes with the connecting tube 21, so that the main body 2 rotates relative to the axis of the mounting base 1 to adjust the tilt angle of the main body 2. The movable rod 216 moves to drive the connecting tube 21 to rotate relative to the conducting tube 11, and the angle between the conducting tube 11 and the connecting tube 21 changes. At the same time, the reflector 221 on the conducting tube 11 also rotates, and the rotation angle of the reflector 221 is half of the rotation angle of the connecting tube 21 relative to the conducting tube 11, so that the laser transmitted through the conducting tube 11 can always be transmitted to the connecting tube 21 and the main body 2 through the reflector 221. The movable rod 216 cooperates with the conducting tube 11 to adjust the tilt angle and direction of the main body 2 so that the main body 2 can cut a bevel.

[0046] Furthermore, in the above embodiment, the reflector 221 may be provided with an extension rod 222 passing through the conducting tube 11, the extension rod 222 may be provided with a third gear, the conducting tube 11 may be provided with a mounting platform 111, the mounting platform 111 may be provided with a fourth gear meshing with the third gear, the fourth gear may be fixedly provided with a fifth gear, the connecting block 22 may be provided with a sixth gear meshing with the fifth gear, the sixth gear may be coaxial with the third gear, when the movable rod 216 drives the connecting tube 21 to rotate relative to the conducting tube 11, the connecting tube 21 drives the connecting block 22 to rotate relative to the conducting tube 11, and the connecting tube 21 may drive the connecting block 22 to rotate relative to the conducting tube 11, and the connecting tube 2 The sixth gear on the mounting platform 111 shifts the fifth gear on the mounting platform 111, the fifth gear drives the fourth gear to rotate, the fourth gear drives the third gear meshing therewith to rotate, the third gear drives the reflector 221 to rotate through the extension rod 222, the rotation angle of the third gear is half of the rotation angle of the sixth gear, the rotation angle of the reflector 221 is half of the rotation angle of the connecting tube 21 relative to the conducting tube 11, so that the laser transmitted through the conducting tube 11 can always be transmitted to the connecting tube 21 and the body 2 through the reflector 221; it can also be a structure that can be obtained by other technicians in this field according to common technical knowledge.

[0047] In the above technical solution, when the inclination angle and direction of the main body 2 need to be adjusted, the conducting tube 11 brings the connecting tube 21 into a synchronous state, so that the main body 2 rotates relative to the axis of the mounting seat 1, and the inclination angle of the main body 2 is adjusted. The movable rod 216 moves to drive the connecting tube 21 to rotate relative to the conducting tube 11, and the angle between the conducting tube 11 and the connecting tube 21 changes. At the same time, the reflector 221 on the conducting tube 11 also rotates, and the rotation angle of the reflector 221 is half of the rotation angle of the connecting tube 21 relative to the conducting tube 11, so that the laser transmitted through the conducting tube 11 can always be transmitted to the connecting tube 21 and the main body 2 through the reflector 221. The movable rod 216 cooperates with the conducting tube 11 to adjust the inclination angle and direction of the main body 2, so that the main body 2 can cut a bevel.

[0048] As an embodiment further provided by the present invention, a slide rail 215 is provided on the movable rod 216 , and a tenon block 214 extending to the inside of the slide rail 215 is movably provided on the connecting tube 21 .

[0049] Specifically, during the process of the conductive tube 11 rotating with the connecting tube 21, the tenon block 214 on the connecting tube 21 can move in the slide rail 215, and the rotation of the connecting tube 21 is unimpeded. During the movement of the movable rod 216, the movable rod 216 can drive the connecting tube 21 to rotate relative to the conductive tube 11 through the tenon block 214, and at the same time drive the reflector 221 to rotate.

[0050] As another embodiment further provided by the present invention, a first movable ring 211 is movably provided on the connecting tube 21 , and a ball head 213 extending to the inside of the tenon block 214 is movably provided on the first movable ring 211 .

[0051] Specifically, a connecting rod 212 is provided between the first movable ring 211 and the ball head 213 . The connecting rod 212 is specifically a self-elastic telescopic rod. A groove matching the ball head 213 is provided on the tenon block 214 .

[0052] Furthermore, in the process of the conductive tube 11 rotating with the connecting tube 21, the first movable ring 211 slides along the connecting tube 21, and the first movable ring 211 drives the ball head 213 to rotate relative to the tenon 214 through the connecting rod 212, and the tenon 214 moves in the slide rail 215, and the connecting rod 212 adaptively adjusts the distance between the first movable ring 211 on the connecting tube 21 and the slide rail 215, and the rotation of the connecting tube 21 is unimpeded. In the process of the movable rod 216 moving, the movable rod 216 can drive the connecting tube 21 to rotate relative to the conductive tube 11 through the tenon 214, and the first movable ring 211 slides along the connecting tube 21, and the ball head 213 rotates relative to the tenon 214, while driving the reflector 221 to rotate.

[0053] As another embodiment further provided by the present invention, a push rod 217 is rotatably provided on the movable rod 216, and a driving ring 218 for driving the push rod 217 to move is rotatably provided on the mounting seat 1.

[0054] Specifically, a thread groove is provided on the push rod 217, and a convex block matched with the thread groove is provided on the drive ring 218. The convex block and the thread groove are only responsible for the movement of the push rod 217 and cannot be self-locking.

[0055] Furthermore, when the driving ring 218 rotates, the protrusion on the driving ring 218 moves along the threaded groove on the push rod 217, pushing the push rod 217 to move, and then driving the movable rod 216 and the slide rail 215 to move.

[0056] As another embodiment further provided by the present invention, the mounting seat 1 is internally provided with a driving rod 12 and a movable block 123 coupled with the driving rod 12 to transmit power, and the movable block 123 includes the following four stations:

[0057] In the first station, the driving ring 218 rotates;

[0058] At the second station, the driving ring 218 and the conducting tube 11 rotate synchronously in the same direction;

[0059] At the third station, the conducting tube 11 rotates;

[0060] At the fourth station, the driving ring 218 and the conducting tube 11 rotate synchronously in opposite directions.

[0061] Specifically, a motor is disposed inside the mounting base 1 , and a driving rod 12 is disposed on the output end of the motor.

[0062] Further, when the movable block 123 is in the first position, the driving rod 12 rotates to drive the driving ring 218 to rotate, and the driving ring 218 drives the movable block 123 to move relative to the mounting seat 1 through the push rod 217; when the movable block 123 is in the second position, the driving rod 12 rotates to drive the driving ring 218 and the conductive tube 11 to rotate synchronously in the same direction, the movable rod 216 moves and the conductive tube 11 drives the connecting tube 21 to rotate relative to the mounting seat 1; when the movable block 123 is in the third position, the driving rod 12 rotates to drive the conductive tube 11 to rotate, and the conductive tube 11 drives the connecting tube 21 to rotate relative to the mounting seat 1; when the movable block 123 is in the fourth position, the driving rod 12 drives the driving ring 218 and the conductive tube 11 to rotate synchronously in the opposite direction.

[0063] Furthermore, in the above embodiment, an electric telescopic rod may be arranged between the movable block 123 and the mounting base 1, and the movement of the movable block 123 may be controlled by the electric telescopic rod to realize the work station switching; or a belt-driven motor may be arranged inside the mounting base 1, a gear is arranged on the output end of the motor, and a rack meshing with the gear is arranged on the movable block 123. The motor drives the gear to rotate, and the gear drives the movable block 123 to move through the rack meshing with the gear to realize the work station switching; or it may be a structure that can be obtained by other technical personnel in this field based on common technical knowledge.

[0064] As another embodiment further provided by the present invention, a first gear 121 is provided on the driving rod 12 , a gear ring 112 meshing with the first gear 121 is provided inside the movable block 123 , and a synchronous cylinder 113 adapted to the gear ring 112 is provided on the conducting tube 11 .

[0065] Specifically, when the movable block 123 is in the second, third, and fourth positions, the ring gear 112 on the transmission tube 11 is meshed with the first gear 121, and the ring gear 112 is coupled with the synchronous cylinder 113 on the transmission tube 11. At this time, the driving rod 12 rotates to drive the first gear 121 to rotate, and the first gear 121 drives the synchronous cylinder 113 to rotate through the ring gear 112 meshed therewith, thereby driving the transmission tube 11 to rotate.

[0066] As another embodiment further provided by the present invention, the movable block 123 is internally rotatably provided with a second gear 122 meshing with the first gear 121 , and the second gear 122 is coupled to the driving ring 218 .

[0067] Specifically, the driving ring 218 is provided with gear teeth meshing with the second gear 122 .

[0068] Furthermore, when the movable block 123 is in the fourth working position, the second gear 122 is in meshing state with the drive ring 218 and the first gear 121 respectively, the first gear 121 is in meshing state with the ring gear 112, the transmission rod rotates to drive the first gear 121 to rotate, the first gear 121 drives the drive ring 218 to rotate through the second gear 122, the first gear 121 drives the conduction tube 11 to rotate through the ring gear 112, and the drive ring 218 and the conduction tube 11 rotate synchronously in opposite directions.

[0069] As another embodiment further provided by the present invention, a synchronization block 126 is provided on the driving rod 12, a synchronization zone is provided on the driving ring 218, and a third movable ring 124 coupled with the synchronization block 126 and a second movable ring 125 coupled with the synchronization zone are rotatably provided on the movable block 123.

[0070] Specifically, when the movable block 123 is in the first or second position, the third movable ring 124 is coupled to the synchronization block 126 on the transmission rod, and the second movable ring 125 is coupled to the synchronization zone on the drive ring 218. The drive rod 12 rotates and the third movable ring 124 driven by the synchronization block 126 rotates, and the third movable ring 124 drives the second movable ring 125 to rotate synchronously in the opposite direction.

[0071] Furthermore, in the above embodiment, an "∞"-shaped chain may be provided between the third movable ring 124 and the second movable ring 125 for transmission, so that the third movable ring 124 and the second movable ring 125 rotate synchronously in the same direction; or a gear for transmitting kinetic energy may be provided between the third movable ring 124 and the second movable ring 125, so that the third movable ring 124 and the second movable ring 125 rotate synchronously in the same direction; or other structures that can be obtained by those skilled in the art based on common technical knowledge.

[0072] As another embodiment further provided by the present invention, a top block 114 is movably provided inside the mounting seat 1 , and the top block 114 moves to lock the conducting tube 11 or the movable rod 216 .

[0073] Specifically, springs are symmetrically arranged between the top block 114 and the mounting seat 1 , a first shifting rod 115 is movably arranged on the top block 114 , and a guide groove 116 for guiding the movement of the first shifting rod 115 is arranged on the movable block 123 .

[0074] Furthermore, when the inclination angle and orientation of the body 2 need to be adjusted, the conducting tube 11 synchronizes with the connecting tube 21, so that the body 2 rotates relative to the axis of the mounting seat 1 to adjust the inclination angle of the body 2. At the same time, the first movable ring 211 slides along the connecting tube 21, and the first movable ring 211 drives the ball head 213 to rotate relative to the tenon block 214 through the connecting rod 212, and the tenon block 214 moves in the slide rail 215. The connecting rod 212 adaptively adjusts the distance between the first movable ring 211 on the connecting tube 21 and the slide rail 215, and the rotation of the connecting tube 21 is unimpeded. The movable rod 216 moves with The movable connecting tube 21 rotates relative to the conducting tube 11, the angle between the conducting tube 11 and the connecting tube 21 changes, the first movable ring 211 slides along the connecting tube 21, the ball head 213 rotates relative to the tenon 214, and the reflector 221 on the conducting tube 11 also rotates, and the rotation angle of the reflector 221 is half of the rotation angle of the connecting tube 21 relative to the conducting tube 11, so that the laser transmitted through the conducting tube 11 can always be transmitted to the connecting tube 21 and the main body 2 through the reflector 221, and the movable rod 216 cooperates with the conducting tube 11 to adjust the inclination angle and direction of the main body 2, so that the main body 2 can cut a bevel.

[0075] When the movable block 123 is in the fourth position (such as Figure 2-4As shown in the figure, the second gear 122 is in meshing state with the drive ring 218 and the first gear 121 respectively, the first gear 121 is in meshing state with the ring gear 112, the ring gear 112 is coupled with the synchronous cylinder 113, the transmission rod rotates to drive the first gear 121 to rotate, the first gear 121 drives the drive ring 218 to rotate through the second gear 122, the first gear 121 drives the transmission tube 11 to rotate through the ring gear 112, the drive ring 218 and the transmission tube 11 rotate synchronously in the opposite direction, the protrusion on the drive ring 218 moves along the thread groove on the push rod 217, pushes the push rod 217 to move, and then drives the movable rod 216 and the slide rail 215 to move, at this time, the guide groove 116 pushes the first shift rod 115, the first shift rod 115 drives the top block 114 to move between the transmission tube 11 and the movable rod 216, and the transmission tube 11 and the movable rod 216 can move freely.

[0076] The movable block 123 moves the gear ring 112, the second gear 122, the third movable ring 124, and the second movable ring 125 to the left (eg Figure 2-4 As shown), it moves to the third station, the second gear 122 is separated from the first gear 121, the ring gear 112 is coupled to the synchronous cylinder 113, the first gear 121 is only engaged with the ring gear 112, and the motor drives the transmission rod to rotate forward or reversely so that the first gear 121 drives the conductive tube 11 to rotate reversely or forwardly through the ring gear 112, and at the same time, the guide groove 116 on the movable block 123 pushes the first lever 115 to move downward, and the first lever 115 drives the top block 114 to move downward and abut against the top of the movable rod 216 to fix the movable rod 216.

[0077] The movable block 123 continues to move to the left with the ring gear 112, the second gear 122, the third movable ring 124, and the second movable ring 125 to the second working position. The third movable ring 124 is coupled with the synchronous block 126, and the second movable ring 125 is coupled with the synchronous area on the drive ring 218. The ring gear 112 is coupled with the synchronous cylinder 113. The first gear 121 is only engaged with the ring gear 112. The drive rod 12 rotates and the third movable ring 124 driven by the synchronous block 126 rotates. The third movable ring 124 drives the second movable ring 125 to rotate synchronously in the opposite direction. The first gear 121 on the drive rod 12 drives the ring gear 112 and the conductive tube 11 to rotate. The conductive tube 11 and the drive ring 218 rotate synchronously in the same direction. At the same time, the guide groove 116 pushes the first lever 115. The first lever 115 drives the top block 114 to move between the conductive tube 11 and the movable rod 216. The conductive tube 11 and the movable rod 216 can move freely.

[0078] The movable block 123 continues to move to the left with the ring gear 112, the second gear 122, the third movable ring 124, and the second movable ring 125 to the first working position. The third movable ring 124 is coupled with the synchronization block 126, and the second movable ring 125 is coupled with the synchronization area on the drive ring 218. The ring gear 112 is separated from the synchronization cylinder 113, and the drive rod 12 drives the drive ring 218 to rotate through the synchronization block 126. At the same time, the guide groove 116 on the movable block 123 pushes the first shift rod 115 to move up, and the first shift rod 115 drives the top block 114 to move up and abut against the bottom of the conductive tube 11 to fix the conductive tube 11.

[0079] Furthermore, the shapes of the synchronization block 126, the synchronization cylinder 113, and the synchronization zone in the above-mentioned embodiment are all regular polygonal prisms, and the gear teeth on the first gear 121, the second gear 122, the ring gear 112, and the drive ring 218 are all integer multiples of the side edges of the regular polygonal prism, so that the movable block 123 can switch between workstations smoothly, and the conductive tube 11 and the movable rod can move in a certain proportion, so that the conductive tube 11 and the movable rod 216 can be adjusted according to the special tilt angle of the main body 2. Example

[0080] A centering mechanism for a laser cutting head includes the swinging mechanism of the laser cutting head in the above scheme, and also includes a shifting block 117 fixedly mounted on the top block 114. When the movable block 123 is in the first position or the third position, the shifting block 117 is shifted to return the body 2 to the vertical state.

[0081] Specifically, a locking block 118 for fixing the first shift rod 115 is movably provided on the shift block 117, a groove adapted to the locking block 118 is provided on the first shift rod 115, a second shift rod 119 extending to the outside of the shift block 117 is provided on the locking block 118, and a spring is provided between the second shift rod 119 and the shift block 117.

[0082] Furthermore, after the cutting work is completed, the movable block 123 is switched to the first or third position, the second lever 119 is moved, the second lever 119 drives the locking block 118 to separate from the first lever 115, the lever block 117 is moved, the lever block 117 drives the top block 114 to move between the conductive tube 11 and the connecting rod 212, at this time the conductive tube 11 and the connecting rod 212 can move freely and the main body 2 can be manually pushed to restore the main body 2 to a vertical state, and then the movable block 123 is adjusted to the second or fourth position, the second lever 119 is released, the locking block 118 is reinserted into the first lever 115 under the push of the spring, and the first lever 115 is connected to the top block 114 together.

[0083] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A swing mechanism for a laser cutting head, characterized in that: include: A body, wherein a connecting tube for conducting laser light is provided on the body; A mounting base fixedly mounted on the mobile frame is provided with: A conducting tube, which is rotatably mounted on the mounting seat and is used to conduct laser light, the connecting tube is hinged on the conducting tube, and a reflector is rotatably arranged on the conducting tube; A movable rod, which is used to drive the connecting tube to rotate relative to the conducting tube, wherein: The conducting tube rotates to drive the connecting tube to rotate synchronously, the movable rod moves to make the connecting tube rotate relative to the conducting tube, the reflecting mirror rotates synchronously with the connecting tube, and the rotation angle is half of the rotation angle of the connecting tube relative to the conducting tube; The reflector is provided with an extension rod passing through the transmission tube, the extension rod is provided with a third gear, the transmission tube is provided with a mounting platform, the mounting platform is provided with a fourth gear meshing with the third gear, the fourth gear is fixedly provided with a fifth gear, the connecting block is provided with a sixth gear meshing with the fifth gear, and the sixth gear is coaxial with the third gear; A push rod is rotatably provided on the movable rod, and a driving ring for driving the push rod to move is rotatably provided on the mounting seat; The mounting seat is internally provided with a driving rod and a movable block coupled with the driving rod to transmit power, and the movable block includes the following four stations: In the first station, the driving ring rotates; In the second station, the driving ring and the conducting tube rotate synchronously and in the same direction; In the third station, the conduction tube rotates; At the fourth station, the driving ring and the conducting tube rotate synchronously in opposite directions; A top block is movably arranged inside the mounting seat, and the top block moves to lock the conducting tube or the movable rod.

2. The swing mechanism of a laser cutting head according to claim 1, characterized in that: The movable rod is provided with a slide rail, and the connecting pipe is movably provided with a tenon block extending to the interior of the slide rail.

3. The swing mechanism of a laser cutting head according to claim 2, characterized in that: A first movable ring is movably provided on the connecting pipe, and a ball head extending to the interior of the tenon block is movably provided on the first movable ring.

4. The swing mechanism of a laser cutting head according to claim 1, characterized in that: The driving rod is provided with a first gear, the movable block is internally rotatably provided with a gear ring meshing with the first gear, and the conducting tube is provided with a synchronous cylinder matched with the gear ring.

5. The swing mechanism of a laser cutting head according to claim 4, characterized in that: The movable block is internally rotated to be provided with a second gear meshing with the first gear, and the second gear is coupled with the driving ring.

6. The swing mechanism of a laser cutting head according to claim 1, characterized in that: The driving rod is provided with a synchronization block, the driving ring is provided with a synchronization area, and the movable block is rotatably provided with a third movable ring coupled with the synchronization block and a second movable ring coupled with the synchronization area.

7. A centering mechanism for a laser cutting head, characterized in that: The swing mechanism of the laser cutting head includes any one of claims 1 to 6, and further includes a shift block fixedly mounted on the top block, and when the movable block is in the first position or the third position, the shift block is shifted to return the body to a vertical state.

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