Galvanized ventilating duct machining equipment

Abstract

The invention relates to the technical field of laser machining, in particular to galvanized ventilating duct machining equipment which comprises a machining table, a fixing structure, a marking structure and a transmission structure are installed on the machining table, the fixing structure comprises a rotary ring, two pairs of clamping plates and two sets of driving assemblies, and the rotary ring is rotatably installed on the machining table; the marking structure comprises a lifting frame, a guide rail assembly and a laser transmitter, the lifting frame is slidably mounted on the machining table in the vertical direction, the guide rail assembly and the laser transmitter are mounted at the upper end of the lifting frame, and the transmission structure is used for being in transmission connection with the lifting frame and a driving rod located at the bottom of the rotary ring. The device comprises four sets of guide wheels, a transmission plate and a fixing plate, the two pairs of clamping plates and the rotatable rotary ring can automatically adjust the printing face of the square pipeline, and meanwhile the working height of the laser transmitter in the lifting frame can be correspondingly and automatically matched according to adjustment of the printing face of the square pipeline.

Description

Technical Field

[0001] The invention relates to the technical field of laser processing, in particular to galvanized ventilation duct processing equipment. Background Art

[0002] After the galvanized ventilation duct has completed the processing technology, it needs to be laser marked. The surface of the galvanized ventilation duct is locally irradiated with a high-energy-density laser to vaporize the surface material of the duct or cause a chemical reaction that changes color, thereby leaving a permanent mark and realizing the identity of the duct.

[0003] When laser marking the surface of a square galvanized ventilation duct, it is often necessary to process multiple sides of the duct in sequence. After the operator controls the laser marker to complete the laser marking process on one side, the square galvanized ventilation duct needs to be flipped over and the laser marker adjusted to perform the laser marking operation on the other side.

[0004] The actual operators need to rely on manual flipping of the galvanized ventilation ducts. The long-term manual operation puts a heavy burden on the personnel. In addition, each time the laser marker is adjusted, the working height of the laser marker needs to be adjusted accordingly according to the change in the height of the galvanized ventilation duct printing surface. The operation steps are relatively cumbersome. Summary of the Invention

[0005] The purpose of the present invention is to provide a galvanized ventilation duct processing equipment to solve the above technical problems. To achieve the above-mentioned object, the present invention provides a galvanized ventilation duct processing device, comprising a processing table on which a fixing structure, a marking structure and a transmission structure are installed; The fixing structure is used to clamp and fix the square pipe, and includes a slewing ring, two pairs of clamping plates and two sets of driving assemblies. The slewing ring is rotatably mounted in a support frame on the processing table, and is driven to rotate by the slewing assembly on the support frame. The two pairs of clamping plates are used to press and fix on the four sides of the square pipe. A driving rod is fixedly mounted on the side of the clamping plate away from the center of the slewing ring. The driving rod is slidably mounted in a positioning hole provided on the side of the slewing ring. The driving rods corresponding to each pair of clamping plates are correspondingly connected by a driving assembly installed on the outside of the slewing ring, and the driving assembly drives the corresponding two sets of driving rods to move in a mirror image. The marking structure is used to perform laser marking on the side wall of a square pipe fixed to a fixed structure, and includes a lifting frame, a guide rail assembly, and a laser emitter. The lifting frame is slidably mounted on a processing table in a vertical direction, the guide rail assembly is fixedly mounted on the upper end of the lifting frame, and the laser emitter is slidably mounted on the bottom of the guide rail assembly. The transmission structure is used to transmit and connect the lifting frame and the driving rod located at the bottom of the slewing ring. It includes four groups of guide wheels, a transmission plate and a fixed plate. The four groups of guide wheels are fixedly installed on the corresponding driving column at one end away from the center of the slewing ring through the mounting shaft. The transmission plate is slidably installed on the processing table in the vertical direction and elastically connected to the upper end surface of the processing table. The upper end of the transmission plate is provided with a fan-shaped plate that slides and abuts against the side of the guide wheel. The guide wheel presses down the fan-shaped plate. The fixed plate is fixedly installed at the bottom of the lifting frame and is connected to the transmission plate through a transmission member. The transmission member drives the fixed plate to move in the reverse direction of the movement of the transmission plate.

[0006] As a further solution of the present invention, the support frame includes a support ring and multiple groups of support legs. The slewing ring is installed in the support ring for limited rotation, and the bottom of the support ring is fixedly installed on the processing table through multiple groups of support legs.

[0007] As a further solution of the present invention, the rotary assembly includes a driving gear, a rotary motor and a transmission ring gear; The rotary motor is fixedly mounted on the support frame via a mounting plate. The drive gear is coaxially mounted on the rotary output shaft of the rotary motor. The transmission ring gear is coaxially mounted on the outer side of the rotary ring and meshes with the drive gear. As a further embodiment of the present invention, the drive assembly includes a dual-axis motor, two sets of drive screws, and a connecting plate. The dual-axis motor is fixedly mounted on the outside of the slewing ring through a mounting base, and the slewing output shafts at both ends are coaxially fixedly connected to the corresponding driving screw rods. One end of the two sets of connecting plates forms a spiral pair transmission with the corresponding driving screw rods through a fixedly mounted internal threaded cap, and the other end is fixedly connected to the end of the corresponding driving rod.

[0008] As a further solution of the present invention, a plurality of groups of guide tubes are fixedly installed on the lower part of the lifting frame, and the plurality of groups of guide tubes are slidably connected to the guide columns fixedly installed on the processing table.

[0009] As a further solution of the present invention, the guide rail assembly includes a first guide rail and a second guide rail. The first guide rail is fixedly installed at the bottom of the lifting frame, and a first power slider is slidably installed therein. The upper end of the second guide rail is fixedly connected to the first power slider, and it is arranged vertically to the first guide rail. The second power slider slidably installed in the second guide rail is used to install a laser emitter.

[0010] As a further solution of the present invention, the transmission plate is vertically slidably installed in a vertical guide rail provided on the processing table, and its positioning plate provided on the side away from the fixed plate is elastically connected to the upper end surface of the processing table through a support spring.

[0011] As a further solution of the present invention, the transmission member is a transmission gear, which is arranged between the transmission plate and the fixed plate, and is rotatably mounted on a positioning frame arranged on the processing table. A group of transmission racks are respectively fixed on the close sides of the transmission plate and the fixed plate, and the two groups of transmission racks are respectively meshed and connected on both sides of the transmission gear.

[0012] Compared with the prior art, the advantages of the present invention are: 1. The present invention installs a rotatable slewing ring on the processing table and integrates two pairs of independently controlled clamping plates in the slewing ring. The two pairs of clamping plates rotate in conjunction with two sets of drive screws driven by a dual-axis motor, so that the two pairs of clamping plates can clamp and fix the four sides of the square pipe. The center of the square pipe is coaxial with the axis of the slewing ring. At this time, the operator only needs to control the rotation of the slewing ring to complete the posture adjustment of the square pipe and rotate the corresponding side of the square pipe to be printed to the upper end level for the laser transmitter at the upper end of the lifting frame to perform laser marking. This completely replaces the manual flipping operation. A single clamping can complete the laser marking of all four sides of the square pipe, and avoids positioning deviation caused by manual handling and loading and unloading. 2. Since the two pairs of clamping plates of the present invention are independently controlled, during the process of clamping the square pipe, the square pipes of different cross-sectional dimensions can be clamped and positioned, and the clamping force is evenly distributed, thereby avoiding the problem of deformation of the square pipe during the clamping process. In addition, during the clamping process, after the square pipes of different cross-sectional dimensions are clamped, the guide wheel at the end of the driving column will be positioned at different positions. When the slewing ring rotates, the guide wheel at the end of the driving column rotated to the bottom will cooperate with the transmission assembly to convert the mechanical height information into the operating height information of the laser transmitter. The positioning height of the lifting frame is determined by the bottom of the slewing ring. The positioning height of the transmission plate is determined. When the square pipe is driven by the slewing ring to rotate, so that the processing surface on the upper side for the laser emitter to perform laser marking is switched, the height of the guide wheel at the bottom of the corresponding slewing ring is also changed accordingly by the rotation of the slewing ring, thereby affecting the downward stroke of the transmission plate and the upward stroke of the fixed plate and the lifting frame. Ultimately, in the present invention, when the slewing ring drives the square pipe to rotate so that the laser marking side is adjusted, the laser generator moves synchronously to achieve automatic focal length matching of the upper end face of the square pipe, without the need for manual height calibration of the laser emitter, which greatly shortens the time of the laser marking operation; 3. In the present invention, the lifting frame is installed on the processing table by sliding in the vertical direction, and the sliding cooperation between the guide tube and the guide column is used to improve the stability of the lifting frame during lifting. At the same time, the transmission plate is supported by the support spring so that the fan-shaped plate at its upper end is always in close contact with the guide wheel, ensuring continuous contact between the guide wheel and the fan-shaped plate, and ensuring the stability of the lifting frame when it is lifted to a stationary state.

[0013] In summary, the present invention achieves three major breakthroughs through a closed-loop design that directly transmits physical signals (clamping position → guide wheel height → transmission plate displacement → gear reversal → laser height): 1. A single rotary structure simultaneously completes pipe fixation, multi-faceted positioning, and height adaptation, reducing the size of the equipment. 2. Eliminating electronic detection and program control, relying solely on mechanical linkage to achieve "clamping and calibration, rotation and self-focusing," reducing the failure rate of the device. 3. It can be applied to batch marking scenarios of galvanized ventilation ducts of different specifications, and its flexibility of use is greatly enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front structure of a galvanized ventilation duct processing equipment in the present invention.

[0015] Figure 2 This is a schematic diagram of the rear structure of a galvanized ventilation duct processing equipment in the present invention.

[0016] Figure 3 It is a schematic diagram of the upper structure of the marking structure in the present invention.

[0017] Figure 4 It is a structural schematic diagram of the transmission structure in the present invention.

[0018] Figure 5 It is a structural cross-sectional view of the transmission structure in the present invention.

[0019] In the accompanying drawings: 1. Processing table; 2. Square pipe; 3. Slewing ring; 4. Support frame; 401. Support ring; 402. Support leg; 5. Clamping plate; 6. Guide wheel; 601. Mounting shaft; 7. Slewing assembly; 701. Slewing motor; 702. Drive gear; 8. Lifting frame; 801. Bottom plate; 9. Guide rail assembly; 901. First guide rail; 902. Second guide rail; 903. First power slide; 904. Second power slide 10. Laser emitter; 11. Transmission structure; 1101. Transmission plate; 1102. Fixing plate; 1103. Transmission gear; 1104. Positioning frame; 1105. Support spring; 1106. Positioning plate; 1107. Fan-shaped plate; 12. Guide tube; 13. Guide column; 14. Drive assembly; 1401. Dual-axis motor; 1402. Drive screw; 1403. Connecting plate; 1404. Internal threaded cap; 15. Drive column. DETAILED DESCRIPTION

[0020] like Figure 1 、 Figure 2 、 Figure 4 as well as Figure 5As shown, in an embodiment of the present invention, a galvanized ventilation duct processing equipment includes a processing table 1, on which a fixed structure, a marking structure and a transmission structure 11 are installed, wherein the fixed structure is used to clamp and fix the square pipe 2, and includes a slewing ring 3, two pairs of clamping plates 5 and two groups of driving components 14, the slewing ring 3 is rotatably installed in the support frame 4 on the processing table 1, and the slewing ring 3 is driven to rotate by the slewing component 7 on the support frame 4, the two pairs of clamping plates 5 are used to press and fix on the four sides of the square pipe 2, the clamping plate 5 is fixedly installed with a driving rod on the side away from the center of the slewing ring 3, and the driving rod is slidably installed in the positioning hole opened on the side of the slewing ring 3, and the driving rod corresponding to each pair of clamping plates 5 is correspondingly connected by the driving component 14 installed on the outside of the slewing ring 3, and the corresponding two groups of driving rods are driven by the driving component 14 to move in a mirror image; the marking structure is used to perform laser marking on the side wall of the square pipe 2 fixed by the fixed structure, and includes a lifting frame 8, a guide rail assembly 9 and a laser emission The device 10, the lifting frame 8 is slidably mounted on the processing table 1 in the vertical direction, the guide rail assembly 9 is fixedly mounted on the upper end of the lifting frame 8, and the laser emitter 10 is slidably mounted on the bottom of the guide rail assembly 9; the transmission structure 11 is used to transmit and connect the lifting frame 8 and the driving rod at the bottom of the slewing ring 3, and it includes four groups of guide wheels 6, a transmission plate 1101 and a fixed plate 1102, and the four groups of guide wheels 6 are fixedly mounted on the end of the corresponding driving column 15 away from the center of the slewing ring 3 through the mounting shaft 601, the transmission plate 1101 is slidably mounted on the processing table 1 in the vertical direction, and is elastically connected to the upper end surface of the processing table 1, and the upper end of the transmission plate 1101 is provided with a fan-shaped plate 1107 that slides against the side of the guide wheel 6, and the fan-shaped plate 1107 is pressed down by the guide wheel 6, and the fixed plate 1102 is fixedly mounted on the bottom of the lifting frame 8, and is connected to the transmission plate 1101 through a transmission member, and the transmission member drives the fixed plate 1102 to move in the opposite direction of the movement of the transmission plate 1101; In the present invention, after the processing personnel places the square galvanized ventilation duct to be laser marked at the center of the rotating ring 3, they can control the two sets of driving components 14 to drive the two pairs of driving rods to approach the center of the rotating ring 3, and drive the corresponding two pairs of clamping plates 5 to press the side surfaces of the square duct 2. At this time, the square duct 2 fixed in the rotating ring 3 can be rotated by the rotating ring 3 and freely adjusted in posture without manual operation; At the same time, when the multiple sets of driving rods move, the driving rods at the bottom of the slewing ring 3 can slide and abut against the upper end of the transmission plate 1101 on the processing table 1 through the guide wheel 6 at its end. Through the transmission cooperation between the transmission plate 1101 and the fixed plate 1102, the height of the lifting frame 8 installed with the laser transmitter 10 is positioned accordingly, so that the working height of the lifting frame 8 can be adapted according to the clamping height of the driving column 15. Figure 1 and Figure 2As shown, in this embodiment of the present invention, the support frame 4 includes a support ring 401 and multiple groups of support legs 402. The slewing ring 3 is limitedly rotatably installed in the support ring 401. The bottom of the support ring 401 is fixedly mounted on the processing table 1 through multiple groups of support legs 402. The support ring 401 is supported and fixed on the upper side of the processing table 1. The height of the spacing between the support ring 401 and the processing table 1 allows the two groups of drive components 14 on the side of the slewing ring 3 to rotate freely. In addition, the rotary assembly 7 includes a driving gear 702, a rotary motor 701 and a transmission ring gear. The rotary motor 701 is fixedly mounted on the support frame 4 through a mounting plate. In the present invention, the mounting plate is fixedly mounted on the support ring 401. At the same time, the driving gear 702 is coaxially mounted on the rotary output shaft of the rotary motor 701. When the rotary motor 701 is turned on, the driving gear 702 is driven to rotate. The transmission ring gear is coaxially mounted on the outer side of the rotary ring 3 and is meshed with the driving gear 702. In the present invention, When the slewing ring 3 is driven to rotate, the slewing motor 701 is controlled to start up, and the rotation output shaft of the slewing motor 701 rotates to drive the driving gear 702 to rotate. At the same time, the transmission ring gear and the driving gear 702 are engaged, driving the transmission ring gear and the slewing ring 3 to rotate synchronously, thereby replacing manual flipping of the square pipe 2. Of course, in actual design, the slewing component 7 can also be replaced with other components with rotational driving capabilities, such as replacing the transmission ring gear and the driving gear 702 with a worm gear assembly, etc.

[0021] like Figure 4As shown, in the embodiment of the present invention, the driving component 14 includes a dual-axis motor 1401, two groups of driving screw rods 1402 and a connecting plate 1403. The dual-axis motor 1401 is fixedly installed on the outside of the slewing ring 3 through a mounting seat, and the rotary output shafts at both ends thereof are coaxially fixedly connected with the corresponding driving screw rods 1402. One end of the two groups of connecting plates 1403 forms a spiral pair transmission with the corresponding driving screw rod 1402 through a fixedly installed internal threaded cap 1404, and the other end is fixedly connected to the end of the corresponding driving rod. When the two groups of driving components 14 drive the corresponding two pairs of clamping plates 5 to perform clamping operations, by controlling the two groups of dual-axis motors 1401 to start up, the rotary output shafts at both ends of the dual-axis motor 1401 can drive the two groups of driving screw rods 1402 on both sides thereof to perform corresponding operations. The two sets of internal threaded caps 1404 drive the two sets of connecting plates 1403 to move in a mirrored manner, thereby driving the two sets of driving rods and the clamping plates 5 installed at the ends of the driving rods to be pressed toward the center of the rotating ring 3 in a mirrored manner, until the two sets of clamping plates 5 are clamped and pressed on both sides of the square pipe 2. At this time, the two sets of dual-axis motors 1401 are started and stopped. Through the clamping operation of the two pairs of clamping plates 5 in the present invention, the square pipe 2 can be positioned and fixed at the center of the rotation. Of course, in actual design, the dual-axis motors 1401 and the two sets of driving screw rods 1402 used to drive the two sets of connecting plates 1403 to move in a mirrored manner can also be replaced by other components with mirrored driving capabilities, such as dual-axis telescopic cylinders and other structures. The present invention does not impose rigid requirements on the selection of the drive component 14.

[0022] like Figure 2 and Figure 4 As shown, in an embodiment of the present invention, a plurality of groups of guide tubes 12 are fixedly installed on the lower part of the lifting frame 8, and the plurality of groups of guide tubes 12 are slidably connected with the guide columns 13 fixedly installed on the processing table 1. When the lifting frame 8 is driven by the fixed plate 1102 at its bottom to be lifted and lowered, it slides with the corresponding guide columns 13 through the plurality of groups of guide tubes 12, thereby improving the stability of the lifting frame 8 during lifting and moving. In the present invention, the number of the guide tubes 12 is two groups, and the two groups of guide tubes 12 are fixedly installed on the bottom plate 801 at the bottom of the lifting frame 8. Of course, the guide columns 13 actually used to guide the lifting and lowering of the lifting frame 8 can also be set on both sides of the lifting frame 8.

[0023] like Figure 3As shown, in an embodiment of the present invention, the guide rail assembly 9 includes a first guide rail 901 and a second guide rail 902. The first guide rail 901 is fixedly installed at the bottom of the lifting frame 8, and a first power slider 903 is slidably installed therein. The upper end of the second guide rail 902 is fixedly connected to the first power slider 903, and it is vertically arranged with the first guide rail 901. The second power slider 904 slidably installed in the second guide rail 902 is used to install the laser emitter 10. In the present invention, the first guide rail 901 and the second guide rail 902 are both electromagnetically controlled, and the corresponding first power slider 903 and the second power slider 904 are electromagnetically slidably installed on the corresponding first guide rail 901 and the second guide rail 902 respectively. Through the sliding cooperation of the first power slider 903 and the second power slider 904, the horizontal position of the laser emitter 10 installed at the bottom of the second power slider 904 is moved and positioned. Figure 4 and Figure 5 As shown, in the embodiment of the present invention, the transmission plate 1101 is vertically slidably installed in the vertical guide rail provided on the processing table 1, and the positioning plate 1106 provided on the side away from the fixed plate 1102 is elastically connected to the upper end surface of the processing table 1 through the support spring 1105. In the present invention, when the guide wheel 6 located at the end of the driving column 15 at the bottom of the slewing ring 3 does not contact the upper end of the transmission plate 1101, the transmission plate 1101 is supported by the elastic force of the support spring 1105 and slides up to the high point of the vertical guide rail. When the guide wheel 6 at the bottom of the slewing ring 3 contacts the fan-shaped plate 1107 at the top of the transmission plate 1101 and presses the fan-shaped plate 1107 downward, the transmission plate 1101 is forced to slide downward along the vertical guide rail. At this time, the support spring 1105 is in a compressed state, and the transmission plate 1101 is supported by the elastic force of the support spring 1105 to be in abutment with the guide wheel 6.

[0024] like Figure 5As shown, in the embodiment of the present invention, the transmission member is a transmission gear 1103, which is arranged between the transmission plate 1101 and the fixed plate 1102, and is rotatably mounted on the positioning frame 1104 provided on the processing table 1, and a group of transmission racks are respectively fixed on the near side of the transmission plate 1101 and the fixed plate 1102, and the two groups of transmission racks are respectively meshed and connected to the two sides of the transmission gear 1103. In the present invention, when the four groups of clamping plates 5 on the rotating ring 3 complete the clamping of the square pipe 2 and the rotating ring 3 rotates until the printing surface on the upper side of the square pipe 2 is in a horizontal state, the guide wheel 6 located on the lower side of the rotating ring 3 is pressed against the top of the fan-shaped plate 1107. The lifting frame 8 moves upward, and the guide rail assembly 9 and the laser emitter 10 installed on the top of the lifting frame 8 are adjusted upward. The focusing marking distance of the laser emitter 10 automatically adapts to the working height of the surface to be printed on the upper side of the square pipe 2.

[0025] In summary, the present invention installs a rotatable slewing ring 3 on the processing table 1, and the two pairs of clamping plates 5 on the slewing ring 3 can be controlled by the corresponding driving assembly 14 to clamp and fix the square pipe 2. At this time, the operator only needs to control the rotation of the slewing ring 3 to complete the posture adjustment of the square pipe 2, and rotate the corresponding side of the square pipe 2 to be printed to the upper end level for the guide rail assembly 9 and the laser emitter 10 at the upper end of the lifting frame 8 to cooperate with the laser marking operation; Furthermore, in the present invention, a lifting frame 8 equipped with a guide rail assembly 9 and a laser emitter 10 is slidably installed on the processing table 1 in the vertical direction. The positioning height of the lifting frame 8 is determined by the positioning height of the transmission plate 1101 at the bottom of the rotating ring 3. In addition, the ventilation cross-section of the existing square pipe 2 is not a square, so that after the two pairs of clamping plates 5 clamp and position the square pipe 2, the stop position of the two groups of clamping plates 5 and the driving column 15 on one side of the clamping plate 5 is controlled by the cross-sectional size of the square pipe 2. When the square pipe 2 is driven to rotate by the rotating ring 3, it is located on the upper side for the laser emitter When the height of the laser marking by 10 changes, the height of the guide wheel 6 at the bottom of the corresponding slewing ring 3 is also changed accordingly by the rotation of the slewing ring 3, thereby affecting the downward stroke of the transmission plate 1101, and the height of the lifting frame 8 driven by the transmission plate 1101 and the fixed plate 1102 is also changed accordingly. Finally, in the present invention, when the slewing ring 3 drives the square pipe 2 to rotate so that the side of the laser marking is adjusted, the corresponding operating height of the lifting frame 8 and the laser emitter 10 on its top will also be automatically adjusted synchronously, without the need for manual secondary calibration of the focusing distance of the laser emitter 10.

[0026] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A galvanized ventilation duct processing equipment, characterized in that, It includes a processing table, on which a fixing structure, a marking structure and a transmission structure are installed; The fixed structure includes a slewing ring, two pairs of clamping plates and two sets of drive assemblies. The slewing ring is rotatably mounted in a support frame on the processing table and is driven to rotate by the slewing assembly. A drive rod is fixed to the side of the clamping plate away from the center of the slewing ring. The drive rod is slidably mounted in a positioning hole opened on the side of the slewing ring. Each pair of drive rods is driven to move in a corresponding mirror image by the drive assembly on the outside of the slewing ring. The marking structure includes a lifting frame, a guide rail assembly and a laser emitter. The lifting frame is vertically slidably mounted on the processing table, the guide rail assembly is fixedly mounted on the upper end of the lifting frame, and the laser emitter is slidably mounted on the bottom of the guide rail assembly. The transmission structure includes four groups of guide wheels, a transmission plate and a fixed plate. The four groups of guide wheels are fixedly mounted on the end of the corresponding driving column away from the center of the slewing ring. The transmission plate is vertically elastically slidably mounted on the processing table. The upper end of the transmission plate is provided with a fan-shaped plate that slides against the side of the guide wheel. The fixed plate is fixedly mounted on the bottom of the lifting frame and is connected to the transmission plate through a transmission member. The transmission member drives the fixed plate to move in the opposite direction by transmitting the movement of the transmission plate.

2. The galvanized ventilation duct processing equipment according to claim 1, characterized in that: The support frame includes a support ring and multiple groups of support legs. The slewing ring is installed in the support ring for limited rotation. The bottom of the support ring is fixedly installed on the processing table through multiple groups of support legs.

3. The galvanized ventilation duct processing equipment according to claim 1, characterized in that: The rotary assembly includes a driving gear, a rotary motor and a transmission ring gear; The rotary motor is fixedly mounted on the support frame via a mounting plate, the driving gear is coaxially mounted on the rotary output shaft of the rotary motor, and the transmission gear ring is coaxially mounted on the outer side of the rotary ring and meshed with the driving gear.

4. The galvanized ventilation duct processing equipment according to claim 1, characterized in that: The driving assembly includes a dual-axis motor, two sets of driving screws and a connecting plate; The dual-axis motor is fixedly mounted on the outside of the slewing ring through a mounting base, and the slewing output shafts at both ends are coaxially fixedly connected to the corresponding driving screw rods. One end of the two sets of connecting plates forms a spiral pair transmission with the corresponding driving screw rods through a fixedly mounted internal threaded cap, and the other end is fixedly connected to the end of the corresponding driving rod.

5. The galvanized ventilation duct processing equipment according to claim 1, characterized in that: A plurality of guide tubes are fixedly mounted on the lower portion of the lifting frame, and the plurality of guide tubes are slidably connected to guide posts fixedly mounted on the processing table.

6. The galvanized ventilation duct processing equipment according to claim 1, characterized in that: The guide rail assembly includes a first guide rail and a second guide rail. The first guide rail is fixedly installed at the bottom of the lifting frame, and a first power slider is slidably installed therein. The upper end of the second guide rail is fixedly connected to the first power slider, and it is arranged perpendicular to the first guide rail. The second power slider slidably installed in the second guide rail is used to install a laser emitter.

7. The galvanized ventilation duct processing equipment according to claim 1, characterized in that: The transmission plate is vertically slidably installed in a vertical guide rail arranged on the processing table, and a positioning plate arranged on a side away from the fixed plate is elastically connected to the end surface of the processing table through a supporting spring.

8. The galvanized ventilation duct processing equipment according to claim 1, characterized in that: The transmission member is a transmission gear, which is arranged between the transmission plate and the fixed plate, and is rotatably mounted on a positioning frame arranged on the processing table. A group of transmission racks are respectively fixed on the close sides of the transmission plate and the fixed plate, and the two groups of transmission racks are respectively meshed and connected on both sides of the transmission gear.

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