Ventilation pipeline punching mechanism with waste collecting function

Abstract

The invention discloses a ventilation pipeline punching mechanism with a waste collecting function, and belongs to the technical field of punching equipment.The ventilation pipeline punching mechanism with the waste collecting function comprises a fixed rack, and a self-discharging pipeline supporting assembly used for supporting a metal ventilation pipe is installed at the top of one side of the fixed rack; a driving auxiliary discharging assembly matched with the self-discharging pipeline supporting assembly is further mounted at the top of the fixed rack; a rotary driving assembly is arranged below the self-discharging pipeline supporting assembly; and an automatic punching assembly is mounted at the rear end of the top of the fixed rack. By designing the self-discharging pipeline supporting assembly and the rotary driving assembly, the self-discharging pipeline supporting assembly and the rotary driving assembly can be matched with each other, two sets of rubber rollers are driven to clamp or release the inner wall of the ventilation pipe through the synchronism of a synchronous rotating support, and the rotary driving assembly can clamp and fix metal ventilation pipes with different diameters; therefore, the application range is wider.

Description

Technical Field

[0001] The invention belongs to the technical field of punching equipment, and in particular relates to a ventilation duct punching mechanism with a waste collection function. Background Art

[0002] Ventilation duct punching mechanisms are devices used to create holes or connections in ventilation ducts during the production, installation, maintenance, or modification of ventilation systems. The purpose of punching holes is to provide interfaces for the installation of air inlets, exhaust ports, sensors, valves, or other equipment. The design and selection of a punching mechanism must consider not only the material and size of the ducts, as well as the required precision, but also their overall adaptability and the automation and intelligence of the system.

[0003] There are many different types of ventilation duct punching mechanisms on the market. Although they can all achieve the punching function, their structural design still has certain defects. First of all, the existing punching equipment is usually very simple in structure and can generally only punch holes in pipes of one specification. For pipes of different sizes, the punching equipment also needs to replace different support modules, which is not only very complicated to operate, but also affects the overall production and processing efficiency. In addition, the punching equipment will generate a large amount of metal debris during the punching process. The existing equipment is not designed with a special debris collection structure, which leads to a large amount of metal debris scattered during the punching process, which not only affects the working environment, but also the metal debris will cause certain interference to the processing process, thereby affecting the processing accuracy and processing quality. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a ventilation duct punching mechanism with a waste collection function.

[0005] The technical solution adopted to solve the above technical problems is: a ventilation duct punching mechanism with a waste collection function, comprising a fixed frame, a self-draining duct support assembly for supporting a metal ventilation duct is installed on the top of one side of the fixed frame, and an auxiliary discharge assembly matching the self-draining duct support assembly is also installed on the top of the fixed frame; A rotary drive assembly is provided below the self-draining pipe support assembly, which can drive the metal ventilation pipe to rotate during the punching process to accurately change the punching position; An automatic punching assembly is installed at the rear end of the top of the fixed frame for automatically punching holes in the metal ventilation pipe, and a waste collection box for collecting metal debris is placed on one side of the bottom of the fixed frame; A main controller for integrated control is also installed at the front end of the top of the fixed frame. The input end of the main controller is electrically connected to the output ends of the self-draining pipe support assembly, the rotation drive assembly, the drive auxiliary discharge assembly and the automatic punching assembly. The operator can control the various parameters of the equipment and the automatic operation during the punching process through the main controller.

[0006] Furthermore, the self-draining pipe support assembly includes a rotating connecting seat rotatably connected to the top of the inner wall of the fixed frame, and a detachable supporting sleeve is installed at one end of the rotating connecting seat, and a self-draining inner conical hole is provided in the supporting sleeve, and a plurality of waste discharge holes with different apertures are provided on the peripheral side of the outer wall of the supporting sleeve, and a plurality of rectangular grooves that are connected with the plurality of waste discharge holes are provided in the self-draining inner conical hole, and a plurality of limiters are installed on the peripheral side of the outer wall of the supporting sleeve, and the plurality of limiters are threadedly connected to the supporting sleeve through locking knobs, and a plurality of penetrating oblique air guide holes are also provided on the outer wall of the supporting sleeve near the end position, and a main drive motor for driving the rotating connecting seat to rotate is installed on the outer wall of the fixed frame.

[0007] Through the above technical solution, the self-draining pipe support assembly is mainly used for centralized collection and guided discharge of waste materials during the punching process. During processing, a corresponding group of waste discharge holes can be selected according to the size of the punched hole diameter. The main drive motor drives the support sleeve to rotate through the rotary connecting seat so that the group of waste discharge holes rotates to the upper position. After the adjustment is completed, the metal ventilation pipe to be processed is sleeved on the outside of the support sleeve. At this time, the tight position of the end of the metal ventilation pipe can be adjusted by the limiter and the locking knob to ensure the subsequent punching accuracy. After the adjustment is completed, the rotary drive assembly is used to cooperate with the support sleeve to complete the clamping and fixation of the metal ventilation pipe. At this time, the automatic punching operation can be carried out. During punching, the support sleeve can provide stable support for the punching position. The metal debris generated by punching will enter the self-draining inner cone hole through the waste discharge hole and be discharged and collected in a centralized manner. More importantly, the support sleeve is connected to the rotary connecting seat by screws, so that it can be replaced, so that support sleeves with different hole diameters and hole spacings can be replaced according to actual needs, making the equipment more widely applicable.

[0008] Furthermore, the self-waste draining inner conical hole is arranged in a cone structure as a whole, and the waste discharge port of the self-waste draining inner conical hole is located directly above the waste collection box.

[0009] Through the above technical solution, the self-draining inner conical hole arranged in a cone structure has an automatic guiding function. During processing, one group of waste discharge holes will rotate to the upper position under the drive of the main drive motor, and the corresponding inclined chute is directly below. When metal debris enters the self-draining inner conical hole through the waste discharge hole, it can automatically slide along its inclined chute to the waste collection box, thereby realizing the automatic discharge and centralized collection of waste.

[0010] Furthermore, the rotation drive assembly includes a mounting base fixed on the inner side wall of the fixed frame, the middle position of the inner side of the mounting base is fixedly connected to a support part, the other end of the support part is fixedly connected to a rotating base, and two first linkage rods are rotatably connected to the rotating base, and the middle parts of the outer walls of the two first linkage rods are fixedly installed with a synchronous rotating bracket, and the other ends of the two synchronous rotating brackets are penetrated by a second linkage rod for rotation connection, and two rubber rollers are fixedly installed on each of the second linkage rods, and the ends between the front and rear groups of the first linkage rods and the second linkage rods are installed with a connecting frame, and the two ends of the first linkage rod are fixedly connected to the connecting frame, and the two ends of the second linkage rod are rotatably connected to the connecting frame, and a transmission gear is fixedly installed on the outer wall of one of the first linkage rods, and a first servo motor is installed on the top of the rotating base, and a driving gear meshing with the transmission gear is installed at the output end of the first servo motor.

[0011] Through the above technical scheme, the rotary drive assembly is mainly used to cooperate with the self-draining pipe support assembly to complete the internal support and fixation of the metal ventilation pipe, and at the same time, it can drive the metal ventilation pipe to rotate automatically during the processing, thereby realizing the function of automatically changing the punching position. Specifically, when the metal ventilation pipe is sleeved on the outside of the self-draining pipe support assembly and the rotary drive assembly, the driving gear can be driven to rotate by the first servo motor, and then the transmission gear meshed with it can be driven to rotate. Since the transmission gear is fixed to one of the first linkage rods, the first linkage rod can also rotate synchronously, and then it can drive the two mutually meshed synchronous rotating brackets to rotate synchronously. When the two synchronous rotating brackets move synchronously, they can simultaneously drive the two second linkage rods to rotate through the two sets of connecting frames, and then drive the front and rear two sets of rubber rollers to complete the clamping or release of the metal ventilation pipe. When the two sets of rubber rollers flip downward, they will clamp the inner wall of the metal ventilation pipe, and when they flip upward, they will release the clamping of the metal ventilation pipe, so as to facilitate the loading and unloading of the metal ventilation pipe.

[0012] Furthermore, the two synchronously rotating brackets are both provided with mutually meshing synchronous teeth.

[0013] Through the above technical solution, the two synchronous rotating brackets can rotate synchronously under the drive of one of the first linkage rods, thereby ensuring the synchronization of the two sets of rubber rollers, so that the clamping or release of the inner wall of the metal ventilation pipe can be completed synchronously.

[0014] Furthermore, the two groups of rubber rollers are in close contact with the inner wall of the metal ventilation pipe in the unfolded state.

[0015] Through the above technical solution, when the two sets of rubber rollers are in contact with the inner wall of the metal ventilation tube, the metal ventilation tube can be clamped and fixed to ensure the stability of the metal ventilation tube during the punching process. In addition, when the two sets of rubber rollers rotate synchronously, the metal ventilation tube can be driven to rotate by friction, thereby completing the change of the punching position.

[0016] Furthermore, a limiting groove is provided at the bottom inner side of the mounting seat, a vertically arranged limiting rod is fixedly connected in the limiting groove, a return spring is sleeved on the top of the outer wall of the limiting rod, a lifting slide is slidably installed in the limiting groove, a guide through hole corresponding to the limiting rod is provided on the lifting slide, a second servo motor is installed on one side of the lifting slide, a first synchronous wheel is fixedly installed on the output shaft of the second servo motor, a second synchronous wheel is fixedly installed on one end of the two second linkage rods close to the mounting seat, and a synchronous belt is installed between the two second synchronous wheels and the first synchronous wheel.

[0017] Through the above technical solution, the rotary drive assembly can not only complete the clamping and releasing of the metal ventilation pipe, but also drive the metal ventilation pipe to rotate through the transmission structure. Specifically, when the punching position of the metal ventilation pipe needs to be changed, the second servo motor can be started. At this time, the second servo motor will drive the first synchronous wheel to rotate through the output shaft, and then can drive the two second synchronous wheels to rotate at the same time through the synchronous belt. At this time, the two second synchronous wheels can synchronously drive the two second linkage rods and the two sets of rubber rollers to rotate synchronously. Since the two sets of rubber rollers are tightly fitted against the inner wall of the metal ventilation pipe during processing, the two sets of rubber rollers can be rotated by friction The force drives the metal ventilation pipe to rotate, thereby automatically changing the punching position; further, since the two sets of rubber rollers need to complete the up and down operations under different working conditions, the positions of the two second synchronous wheels will also change. Therefore, in order to ensure the tension of the synchronous belt, the lifting slide is slidably installed in the limiting slide groove so that it can slide and lift, and by connecting a return spring to the outer wall of the limit rod, the return spring can always be in an extruded state, and then the elastic reverse thrust of the return spring can be used to push the lifting slide downward, so that the synchronous belt can always maintain a certain tension to ensure the normal operation of the transmission structure.

[0018] Furthermore, the auxiliary discharge assembly includes a pulse air pump fixedly mounted on the top of the fixed frame, an air guide tube is installed at the air outlet of the pulse air pump, and the other end of the air guide tube faces the corresponding inclined air guide hole.

[0019] Through the above technical solution, the auxiliary discharge component is mainly composed of a pulse air pump and an air guide pipe. The pulse air pump will work intermittently according to the punching status, and the compressed gas it ejects will be introduced into the inclined air guide hole through the air guide pipe. Then, under the guidance of the inclined air guide hole, the pressurized gas ejected instantly will push the metal debris on the inclined chute to move in the discharge direction, thereby ensuring that after each processing is completed, the waste in the support sleeve can be cleanly discharged to avoid the retained metal debris affecting the subsequent punching accuracy and punching quality.

[0020] Furthermore, the automatic punching assembly includes a limiting guide rail and two bearing seats fixed to the rear end of the top of the fixed frame, a ball screw is installed between the two bearing seats, one of the bearing seats is installed with a third servo motor for driving the ball screw to rotate, a movable slide is slidably connected to the limiting guide rail, and the movable slide is also provided with a ball nut seat corresponding to the ball screw, a support frame is fixedly installed on the top of the support frame, a hydraulic cylinder is installed at the front end of the top of the support frame, and a punching drill is fixedly installed on the bottom end of the hydraulic cylinder piston rod.

[0021] Through the above technical solution, the automatic punching component can complete the fixed-point and fixed-distance punching of the metal ventilation pipe according to the set program. During specific operation, the third servo motor can drive the ball screw to rotate, and then drive the movable slide to slide precisely on the limit guide rail, so as to adjust the lateral position of the punching drill. After adjustment, the piston rod of the hydraulic cylinder will drive the punching drill to move downward, and then use the punching drill to complete the fixed-point punching of the metal ventilation pipe. In addition, the drill bit of the punching drill can be replaced according to the size of the hole.

[0022] The beneficial effects of the present invention are as follows: (1) The present invention designs a self-discharge pipe support component and a rotary drive component so that the two can cooperate with each other, and utilizes the synchronization of the synchronous rotating bracket to drive two groups of rubber rollers to complete the clamping or release of the inner wall of the ventilation pipe, so that the rotary drive component can complete the clamping and fixing of metal ventilation pipes of different diameters, thereby making its application range wider; (2) The present invention designs a self-discharge pipe support component and an auxiliary discharge component, and the self-discharge inner conical hole set in a cone structure has an automatic guiding function. When metal debris enters the self-discharge inner conical hole through the discharge hole, it can automatically slide along its inclined chute to the waste collection box, thereby realizing the automatic discharge and centralized collection of waste, so as to avoid the retained metal debris affecting the subsequent punching accuracy and punching quality; (3) The present invention designs a rotary drive component, which can not only quickly complete the clamping and fixing of ventilation pipes of different diameters, but also drive the ventilation pipe to rotate and automatically adjust the punching position of the ventilation pipe, thereby improving its overall processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is a schematic diagram of the working state structure of the present invention; Figure 2 This is a first perspective structural diagram of the present invention; Figure 3 This is a second perspective structural diagram of the present invention; Figure 4 It is a front view of the working state of the present invention; Figure 5 yes Figure 4 AA-direction stereoscopic cross-sectional view; Figure 6 yes Figure 5 A partial enlarged view of point A in the middle; Figure 7 It is a right side view of the present invention; Figure 8 yes Figure 7 BB-direction three-dimensional cross-sectional view; Figure 9 This is a structural diagram of the self-draining pipe support assembly of the present invention from a first perspective; Figure 10 This is a structural diagram of the self-draining pipe support assembly of the present invention from a second perspective; Figure 11 is a cross-sectional view of a self-draining pipe support assembly of the present invention; Figure 12 This is a structural diagram of the rotary drive assembly of the present invention from a first perspective; Figure 13 This is a structural diagram of the rotary drive assembly of the present invention from a second perspective; Figure 14 is a structural diagram of the rotary drive assembly of the present invention from a third perspective; Figure 15 yes Figure 14 A partial enlarged view of point B in the middle; Figure 16 This is a schematic structural diagram of the lifting slide from a first perspective of the present invention; Figure 17 This is a schematic structural diagram of the lifting slide from a second perspective of the present invention; Figure 18 It is a structural schematic diagram of the automatic punching assembly of the present invention.

[0024] Figure numerals: 1. Fixed frame; 2. Self-draining pipe support assembly; 201. Rotating connecting seat; 202. Support sleeve; 203. Self-draining inner tapered hole; 204. Waste discharge hole; 205. Rectangular groove; 206. Limiter; 207. Locking knob; 208. Oblique air guide hole; 209. Main drive motor; 3. Rotary drive assembly; 301. Mounting seat; 302. Support part; 303. Rotating seat; 304. First linkage rod; 305. Synchronous rotation bracket; 306. Synchronous gear; 307. Second linkage rod; 308. Rubber roller; 309. Connecting frame; 310. Transmission gear; 311. First servo motor; 312. Drive gear ; 313, limiting slide; 314, limiting rod; 315, reset spring; 316, lifting slide; 317, guide hole; 318, second servo motor; 319, first synchronous wheel; 320, second synchronous wheel; 321, synchronous belt; 4, auxiliary discharge assembly; 401, pulse air pump; 402, air guide tube; 5, automatic punching assembly; 501, limiting guide rail; 502, bearing seat; 503, ball screw; 504, third servo motor; 505, movable slide; 506, ball nut seat; 507, support frame; 508, hydraulic cylinder; 509, punching drill; 6, waste collection box; 7, main controller; 8, metal ventilation pipe. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] like Figures 1-18As shown, a ventilation duct punching mechanism with a waste collection function in this embodiment includes a fixed frame 1, a self-draining duct support assembly 2 for supporting a metal ventilation pipe 8 is installed on the top of one side of the fixed frame 1, and the self-draining duct support assembly 2 includes a rotating connection seat 201 rotatably connected to the top of the inner wall of the fixed frame 1, and a detachable support sleeve 202 is installed at one end of the rotating connection seat 201, and a self-draining inner tapered hole 203 is provided in the support sleeve 202, and the outer wall of the support sleeve 202 is provided with a self-draining inner tapered hole 203. There are multiple sets of waste discharge holes 204 with different apertures on the side, and multiple rectangular grooves 205 are opened in the inner conical hole 203 of the waste discharge, which are connected to the multiple sets of waste discharge holes 204. Multiple limiters 206 are installed on the outer wall of the support sleeve 202. The multiple limiters 206 are all threadedly connected to the support sleeve 202 through locking knobs 207. The outer wall of the support sleeve 202 is also provided with multiple oblique air guide holes 208 near the end. A device for driving the rotation connection is installed on the outer wall of the fixed frame 1. The main drive motor 209 rotates the seat 201, and the self-discharge pipe support component 2 is mainly used for the centralized collection and guided discharge of waste materials during the punching process. During processing, a corresponding group of waste discharge holes 204 can be selected according to the size of the punched hole, and the main drive motor 209 drives the support sleeve 202 to rotate through the rotating connecting seat 201, so that the group of waste discharge holes 204 rotates to the upper position. After the adjustment is completed, the metal ventilation pipe 8 to be processed is sleeved on the outside of the support sleeve 202. At this time, the tight position of the end of the metal ventilation pipe 8 can be adjusted by the limiter 206 and the locking knob 207 to ensure the subsequent punching accuracy. After the adjustment is completed, the rotating drive component 3 is used to cooperate with the support sleeve 202 to complete the clamping and fixation of the metal ventilation pipe 8. At this time, automatic punching operation can be performed. During punching, the support sleeve 202 can provide stable support for the punching position. The metal debris generated by punching will enter the self-discharge inner cone hole 203 through the waste discharge hole 204, and be discharged and collected in a centralized manner.

[0027] Furthermore, in this embodiment, the support sleeve 202 is connected to the rotating connecting seat 201 by screws, so that it can be replaced, so that the support sleeve 202 with different hole diameters and hole spacings can be replaced according to actual needs, making the device more widely applicable.

[0028] This embodiment further refers to Figure 11The self-discharge inner conical hole 203 is arranged in a cone structure as a whole, and the waste discharge port of the self-discharge inner conical hole 203 is located directly above the waste collection box 6. The self-discharge inner conical hole 203 arranged in a cone structure has an automatic guiding function. During processing, one group of waste discharge holes 204 will rotate to the upper position under the drive of the main drive motor 209, and the corresponding inclined chute is directly below. When metal debris enters the self-discharge inner conical hole 203 through the waste discharge hole 204, it can automatically slide along its inclined chute to the waste collection box 6, thereby realizing the automatic discharge and centralized collection of waste.

[0029] For auxiliary discharge component 4, refer to Figure 1-Figure 5 , an auxiliary discharge assembly 4 matching the self-draining pipe support assembly 2 is also installed on the top of the fixed frame 1; the auxiliary discharge assembly 4 includes a pulse air pump 401 fixedly installed on the top of the fixed frame 1, and the air outlet of the pulse air pump 401 is installed with an air guide pipe 402, and the other end of the air guide pipe 402 faces the corresponding inclined air guide hole 208. The auxiliary discharge assembly 4 is mainly composed of a pulse air pump 401 and an air guide pipe 402. The pulse air pump 401 will work intermittently according to the punching state, and the compressed gas it ejects will be introduced into the inclined air guide hole 208 through the air guide pipe 402, and then under the guidance of the inclined air guide hole 208, the pressurized gas ejected instantly will push the metal debris on the inclined chute to move in the discharge direction, thereby ensuring that after each processing is completed, the waste in the support sleeve 202 can be cleanly discharged to avoid the retained metal debris affecting the subsequent punching accuracy and punching quality.

[0030] Regarding the rotary drive assembly 3, refer to Figure 12-17, a rotary drive assembly 3 is provided below the self-discharge pipe support assembly 2, and the rotary drive assembly 3 can drive the metal ventilation pipe 8 to rotate during the punching process to accurately change the punching position; the rotary drive assembly 3 includes a mounting seat 301 fixed on the inner wall of the fixed frame 1, and a support portion 302 is fixedly connected to the middle position of the inner side of the mounting seat 301, and the other end of the support portion 302 is fixedly connected to a rotating seat 303, and two horizontally penetrating first linkage rods 304 are rotatably connected to the rotating seat 303, and the middle of the outer wall of the two first linkage rods 304 are fixedly installed with a synchronous rotating bracket 305, and the two synchronous The other end of the step rotating bracket 305 is penetrated by a second linkage rod 307 that is rotatably connected. Two rubber rollers 308 are fixedly installed on each second linkage rod 307. A connecting frame 309 is installed at the end between the front and rear groups of first linkage rods 304 and second linkage rods 307, and both ends of the first linkage rod 304 are fixedly connected to the connecting frame 309. Both ends of the second linkage rod 307 are rotatably connected to the connecting frame 309. A transmission gear 310 is fixedly installed on the outer wall of one of the first linkage rods 304. A first servo motor 311 is installed on the top of the rotating seat 303. The first servo motor 311 is driven by the first servo motor 311. The output end is equipped with a driving gear 312 meshing with the transmission gear 310. The rotary drive assembly 3 is mainly used to cooperate with the self-draining pipe support assembly 2 to complete the internal support and fixation of the metal ventilation pipe 8. At the same time, it can drive the metal ventilation pipe 8 to rotate automatically during the processing, thereby realizing the function of automatically changing the punching position. Specifically, when the metal ventilation pipe 8 is sleeved on the outside of the self-draining pipe support assembly 2 and the rotary drive assembly 3, the driving gear 312 can be driven to rotate by the first servo motor 311, and then the transmission gear 310 meshing with it can be driven to rotate. Since the transmission gear 310 It is fixed to one of the first linkage rods 304 so that the first linkage rod 304 can also rotate synchronously, and then drive the two mutually meshed synchronous rotating brackets 305 to rotate synchronously. When the two synchronous rotating brackets 305 move synchronously, they can simultaneously drive the two second linkage rods 307 to rotate through two sets of connecting frames 309, and then drive the front and rear two sets of rubber rollers 308 to complete the clamping or release of the metal ventilation pipe 8. When the two sets of rubber rollers 308 are flipped downward, they will clamp the inner wall of the metal ventilation pipe 8, and when they are flipped upward, they will release the clamping of the metal ventilation pipe 8, so as to facilitate the loading and unloading of the metal ventilation pipe 8.

[0031] Furthermore, in this embodiment, the two synchronous rotating brackets 305 are provided with mutually meshing synchronous teeth 306, so that the two synchronous rotating brackets 305 can rotate synchronously under the drive of one of the first linkage rods 304, thereby ensuring the synchronization of the operation of the two sets of rubber rollers 308, so that the clamping or release of the inner wall of the metal ventilation pipe 8 can be completed synchronously, and at the same time, the rotating drive component 3 can also complete the clamping and fixation of metal ventilation pipes 8 of different diameters, thereby making its scope of application more extensive.

[0032] Furthermore, in this embodiment, the two sets of rubber rollers 308 are in close contact with the inner wall of the metal ventilation tube 8 in the expanded state. When the two sets of rubber rollers 308 are in close contact with the inner wall of the metal ventilation tube 8, the metal ventilation tube 8 can be clamped and fixed to ensure the stability of the metal ventilation tube 8 during the punching process. In addition, when the two sets of rubber rollers 308 rotate synchronously, the metal ventilation tube 8 can also be driven to rotate by friction, thereby completing the change of the punching position.

[0033] The present embodiment further comprises a limit slot 313 provided at the bottom inner side of the mounting seat 301, a limit rod 314 provided vertically fixedly connected in the limit slot 313, a return spring 315 provided on the top of the outer wall of the limit rod 314, a lifting slide 316 provided with a sliding installation in the limit slot 313, a guide through hole 317 corresponding to the limit rod 314 is provided on the lifting slide 316, a second servo motor 318 is provided on one side of the lifting slide 316, a first synchronous wheel 319 is fixedly installed on the output shaft of the second servo motor 318, a second synchronous wheel 320 is fixedly installed on one end of the two second linkage rods 307 close to the mounting seat 301, a synchronous belt 321 is installed between the two second synchronous wheels 320 and the first synchronous wheel 319, and a rotation drive component 3 can not only complete the clamping and release of the metal ventilation tube 8, but also drive the metal ventilation tube 8 to rotate through the transmission structure. Specifically, when the punching position of the metal ventilation tube 8 needs to be changed, the second servo motor 318 can be started. At this time, the second servo motor 318 will drive the first synchronous wheel 319 to rotate through the output shaft, and then can simultaneously drive the two second synchronous wheels 320 to rotate through the synchronous belt 321. At this time, the two second synchronous wheels 320 can synchronously drive the two second linkage rods 307 and the two sets of rubber rollers 308 to rotate synchronously. Because the two sets of rubber rollers 308 are in close contact with the inner wall of the metal ventilation tube 8 during processing, the two sets of rubber rollers 308 can drive the metal ventilation tube 8 to rotate through friction, thereby automatically changing the punching position.

[0034] Furthermore, in this embodiment, since the two sets of rubber rollers 308 need to complete the upturning and downturning operations under different working conditions, the positions of the two second synchronous wheels 320 will also change. Therefore, in order to ensure the tension of the synchronous belt 321, the lifting slide 316 is slidably installed in the limiting slide groove 313 so that it can slide and rise and fall, and by connecting the return spring 315 to the outer wall of the limiting rod 314, the return spring 315 can always be in an squeezed state, and then the elastic reverse thrust of the return spring 315 can be used to push the lifting slide 316 downward, so that the synchronous belt 321 can always maintain a certain tension to ensure the normal operation of the transmission structure.

[0035] For automatic punching component 5, refer to Figure 1and Figure 18 , an automatic punching assembly 5 is installed at the rear end of the top of the fixed frame 1 for automatically punching holes in the metal ventilation pipe 8, and a waste collection box 6 for collecting metal debris is placed on one side of the bottom of the fixed frame 1; the automatic punching assembly 5 includes a limiting guide rail 501 and two bearing seats 502 fixed to the rear end of the top of the fixed frame 1, a ball screw 503 is installed between the two bearing seats 502, one of the bearing seats 502 is installed with a third servo motor 504 for driving the ball screw 503 to rotate, a movable slide 505 is slidably connected to the limiting guide rail 501, and the movable slide 505 is also provided with a ball nut seat 506 corresponding to the ball screw 503, and a support frame 50 is fixedly installed on the top of the movable slide 505. 7. A hydraulic cylinder 508 is installed at the front end of the top of the support frame 507, and a punching drill 509 is fixedly installed at the bottom end of the piston rod of the hydraulic cylinder 508. The automatic punching component 5 can complete the fixed-point and fixed-distance punching of the metal ventilation pipe 8 according to the set program. During specific operation, the third servo motor 504 can drive the ball screw 503 to rotate, and then drive the movable slide 505 to slide accurately on the limiting guide rail 501, so as to adjust the lateral position of the punching drill 509. After adjustment, the piston rod of the hydraulic cylinder 508 will drive the punching drill 509 to move downward, and then use the punching drill 509 to complete the fixed-point punching of the metal ventilation pipe 8. In addition, the drill bit of the punching drill 509 can be replaced according to the size of the hole.

[0036] refer to Figures 1-8 A main controller 7 for integrated control is also installed at the top front end of the fixed frame 1. The input end of the main controller 7 is electrically connected to the output end of the self-discharging pipe support component 2, the rotation drive component 3, the drive auxiliary discharge component 4 and the automatic punching component 5. The operator can control the various parameters of the equipment and the automatic operation during the punching process through the main controller 7.

[0037] The working principle of this embodiment is as follows: during processing, a corresponding set of waste discharge holes 204 can be selected according to the size of the punched holes. The main drive motor 209 drives the support sleeve 202 to rotate through the rotary connector 201, so that the set of waste discharge holes 204 rotates to the upper position. After the adjustment is completed, the metal ventilation pipe 8 to be processed is sleeved on the outside of the support sleeve 202. At this time, the end of the metal ventilation pipe 8 can be adjusted by the limiter 206 and the locking knob 207. After the adjustment is completed, the metal ventilation pipe 8 is clamped and fixed by cooperating with the support sleeve 202 through the rotating drive component 3. When punching, the ball screw 503 can be driven to rotate by the third servo motor 504, and then the movable slide 505 can be driven to slide accurately on the limiting guide rail 501. After the adjustment is in place, the piston rod of the hydraulic cylinder 508 will drive the punching drill 509 to move downward, and then the punching drill 509 is used to complete the fixed-point punching of the metal ventilation pipe 8. The metal debris generated by the punching will enter the self-discharge inner tapered hole 203 through the waste discharge hole 204. At this time, the metal debris will automatically slide along its inclined chute to the waste collection box 6 and be collected centrally. After the punching is completed, the first servo motor 311 drives the two groups of rubber rollers 308 to turn upward synchronously, thereby completing the release of the metal ventilation tube 8. At this time, the processed metal ventilation tube 8 can be removed from the equipment.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A ventilation duct punching mechanism with a waste collection function, comprising a fixed frame (1), characterized in that: A self-draining pipe support assembly (2) for supporting a metal ventilation pipe (8) is installed on the top of one side of the fixed frame (1), and an auxiliary discharge assembly (4) matching the self-draining pipe support assembly (2) is also installed on the top of the fixed frame (1); A rotary drive assembly (3) is provided below the self-draining pipe support assembly (2), and the rotary drive assembly (3) is capable of driving the metal ventilation pipe (8) to rotate during the punching process to accurately change the punching position; An automatic punching assembly (5) is installed at the rear end of the top of the fixed frame (1) for automatically punching holes in the metal ventilation pipe (8), and a waste collection box (6) for collecting metal debris is placed on one side of the bottom of the fixed frame (1); A main controller (7) for integrated control is also installed at the top front end of the fixed frame (1).

2. The ventilation duct punching mechanism with waste collection function according to claim 1, characterized in that: The self-draining pipe support assembly (2) comprises a rotating connection seat (201) rotatably connected to the top of the inner wall of the fixed frame (1); a detachable support sleeve (202) is installed at one end of the rotating connection seat (201); a self-draining inner conical hole (203) is provided in the support sleeve (202); a plurality of groups of discharge holes (204) with different apertures are provided on the peripheral side of the outer wall of the support sleeve (202); a plurality of groups of discharge holes (204) with different apertures are provided in the self-draining inner conical hole (203) ) are connected to each other through a rectangular groove (205), a plurality of limiters (206) are installed on the peripheral side of the outer wall of the support sleeve (202), and the plurality of limiters (206) are threadedly connected to the support sleeve (202) through a locking knob (207), and a plurality of oblique air guide holes (208) are also opened on the outer wall of the support sleeve (202) near the end position, and a main driving motor (209) for driving the rotating connecting seat (201) to rotate is installed on the outer side wall of the fixed frame (1).

3. The ventilation duct punching mechanism with waste collection function according to claim 2, characterized in that: The self-waste draining inner conical hole (203) is arranged in a cone-shaped structure as a whole, and the waste discharge port of the self-waste draining inner conical hole (203) is located directly above the waste collection box (6).

4. The ventilation duct punching mechanism with waste collection function according to claim 1, characterized in that: The rotary drive assembly (3) comprises a mounting base (301) fixed on the inner wall of the fixed frame (1); a support portion (302) is fixedly connected to the middle position of the inner side of the mounting base (301); the other end of the support portion (302) is fixedly connected to a rotating base (303); two first linkage rods (304) passing through the rotating base (303) are rotatably connected; a synchronous rotation bracket (305) is fixedly mounted on the middle of the outer wall of each of the two first linkage rods (304); the other ends of each of the two synchronous rotation brackets (305) pass through a rotatably connected second linkage rod (307); two rubber rollers (308) are fixedly mounted on each of the second linkage rods (307); a connecting frame (309) is mounted at the ends between the front and rear groups of the first linkage rods (304) and the second linkage rods (307); the two ends of the first linkage rod (304) are fixedly connected to the connecting frame (309), and the two ends of the second linkage rod (307) are rotatably connected to the connecting frame (309).

5. The ventilation duct punching mechanism with waste collection function according to claim 4, characterized in that: The two synchronously rotating brackets (305) are both provided with mutually meshing synchronous teeth (306).

6. The ventilation duct punching mechanism with waste collection function according to claim 4, characterized in that: The two groups of rubber rollers (308) are both tightly fitted against the inner wall of the metal ventilation pipe (8) in the unfolded state.

7. The ventilation duct punching mechanism with waste collection function according to claim 4, characterized in that: A transmission gear (310) is fixedly mounted on the outer wall of one of the first linkage rods (304), a first servo motor (311) is mounted on the top of the rotating seat (303), and a driving gear (312) meshing with the transmission gear (310) is mounted on the output end of the first servo motor (311).

8. The ventilation duct punching mechanism with waste collection function according to claim 4, characterized in that: A limiting slot (313) is provided at the bottom inner side of the mounting seat (301), a limiting rod (314) is fixedly connected to the limiting slot (313), a return spring (315) is sleeved on the top of the outer wall of the limiting rod (314), a lifting slide (316) is slidably installed in the limiting slot (313), a guide through hole (317) corresponding to the limiting rod (314) is provided on the lifting slide (316), a second servo motor (318) is installed on one side of the lifting slide (316), a first synchronous wheel (319) is fixedly installed on the output shaft of the second servo motor (318), a second synchronous wheel (320) is fixedly installed on one end of the two second linkage rods (307) close to the mounting seat (301), and a synchronous belt (321) is installed between the two second synchronous wheels (320) and the first synchronous wheel (319).

9. The ventilation duct punching mechanism with waste collection function according to claim 2, characterized in that: The auxiliary discharge assembly (4) comprises a pulse air pump (401) fixedly mounted on the top of the fixed frame (1), an air guide tube (402) being mounted at the air outlet of the pulse air pump (401), and the other end of the air guide tube (402) facing the corresponding oblique air guide hole (208).

10. The ventilation duct punching mechanism with waste collection function according to claim 1, characterized in that: The automatic punching assembly (5) comprises a limiting guide rail (501) fixed to the rear end of the top of the fixed frame (1) and two bearing seats (502), a ball screw (503) is installed between the two bearing seats (502), a third servo motor (504) for driving the ball screw (503) to rotate is installed on one of the bearing seats (502), a movable slide (505) is slidably connected to the limiting guide rail (501), and a ball nut seat (506) corresponding to the ball screw (503) is also provided on the movable slide (505), a support frame (507) is fixedly installed on the top of the movable slide (505), a hydraulic cylinder (508) is installed on the front end of the top of the support frame (507), and a punching drill (509) is fixedly installed on the bottom end of the piston rod of the hydraulic cylinder (508).

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