A metal pipe punching and edge sealing device

Abstract

This invention relates to a metal pipe processing apparatus, and more particularly to a metal pipe punching and edge-sealing apparatus. It includes a feeding device, a punching device, and an edge-sealing device connected sequentially to each other. The punching device includes a first conveying mechanism, a first denting mechanism, a first punching mechanism, a second denting mechanism, a second punching mechanism, and a first positioning mechanism, all positioned above a punching machine. The first denting mechanism, the first punching mechanism, and the first positioning mechanism are sequentially arranged on one side of the punching machine; the second denting mechanism and the second punching mechanism are arranged on the other side of the punching machine. There are two first positioning mechanisms, each corresponding to one of the second denting mechanism and the other to the other. By mounting the denting mechanism, punching mechanism, punching mechanism, and edge-sealing mechanism on the same device, the four mechanisms can be linked to complete the left and right processing of the pipe fitting.

Description

Technical Field

[0001] This invention relates to a metal tube processing apparatus, and more particularly to a metal tube punching and sealing apparatus. Background Technology

[0002] The smart bed frame is constructed using a combination of hollow metal tubing, such as... Figure 1 As shown, these metal tubes require two main steps: punching and edge sealing at both ends. The specific processing steps can be further broken down as follows: left-side recessing, left-side punching, right-side recessing, right-side punching, left-side cutting, left-side edge sealing, right-side cutting, and right-side edge sealing. Punching is for connecting the machine legs at the appropriate locations, while edge sealing is for aesthetic purposes and to prevent scratches on the edges. Currently, there is no fully automated device to complete all these processing steps; they are all done independently by separate punching or edge sealing devices, which is time-consuming, labor-intensive, and inefficient. Furthermore, the independent devices suffer from significant positioning deviations in the forming molds, resulting in lower precision in tube processing and affecting product quality. Summary of the Invention

[0003] This invention provides a metal tube punching and sealing device that integrates four processes—denting, punching, cutting, and sealing—into one machine, improving production efficiency while ensuring processing accuracy.

[0004] Therefore, the present invention provides a metal tube punching and sealing device, comprising a feeding device, a punching device and a sealing device connected in sequence to each other;

[0005] The punching device includes a first conveying mechanism, a first denting mechanism, a first punching mechanism, a second denting mechanism, a second punching mechanism, and a first positioning mechanism, all disposed above the punching machine.

[0006] The first denting mechanism, the first punching mechanism, and the first positioning mechanism are sequentially arranged on one side of the punching machine.

[0007] The second denting mechanism and the second punching mechanism are located on the other side of the first punching machine. There are two first positioning mechanisms, which correspond to the positions of the second denting mechanism and the second punching mechanism, respectively.

[0008] The first conveying mechanism is disposed between the first denting mechanism, the first punching mechanism, the second denting mechanism, and the second punching mechanism;

[0009] The edge sealing device includes a second conveying mechanism, a second positioning mechanism, a first punching mechanism, a first edge sealing mechanism, a second punching mechanism, and a second edge sealing mechanism, all disposed above the edge sealing machine.

[0010] The first punching mechanism, the first edge sealing mechanism, and the two second positioning mechanisms are sequentially arranged on one side of the edge sealing machine, with the first punching mechanism being closer to the punching device;

[0011] Two second positioning mechanisms, a second punching mechanism, and a second edge sealing mechanism are sequentially arranged on the other side of the edge sealing machine. The positions of the second positioning mechanisms on both sides correspond to the positions of the first punching structure, the second punching mechanism, the first edge sealing mechanism, and the second edge sealing mechanism, respectively.

[0012] The second conveying mechanism is disposed between the first edge sealing mechanism and the second edge sealing mechanism, and the first conveying mechanism corresponds to and is connected to the second conveying mechanism.

[0013] Furthermore, the first conveying mechanism includes a symmetrically arranged first pipe processing table, and a first shifting device is provided on the inner side of the first pipe processing table. The first shifting device is provided with a first horizontal shifting cylinder and a first vertical shifting cylinder. A second limiting block is provided on the first pipe processing table corresponding to the positions of the first denting mechanism, the first punching mechanism, the first positioning mechanism, the second denting mechanism, and the second punching mechanism. The first denting mechanism uses a single-sided second limiting block, while the others use symmetrical second limiting blocks. A first pipe support groove is provided sequentially in the horizontal direction on the upper boundary of the first shifting device, and the spacing between them matches the spacing between the first denting mechanism, the first punching mechanism, and the two first positioning mechanisms.

[0014] Furthermore, the second conveying mechanism includes a symmetrically arranged second pipe processing table, and a second shifting device is arranged inside the second pipe processing table. The second shifting device is equipped with a second horizontal shifting cylinder and a second vertical shifting cylinder. The second pipe processing table is provided with symmetrically arranged second limiting blocks at positions corresponding to the first punching mechanism, the first edge sealing mechanism, the second punching mechanism, and the second edge sealing mechanism. The upper boundary of the second shifting device is provided with second pipe support grooves in the horizontal direction, and the spacing between them matches the spacing between the first punching mechanism, the first edge sealing mechanism, and the two second positioning mechanisms.

[0015] Furthermore, the length of the first shifting device is longer than that of the second shifting device, and the number of the first pipe support grooves is at least one more than that of the second pipe support grooves. The first shifting device can move the pipe to the first punching structure. The starting position of the second shifting device is set at the first sealing structure.

[0016] Furthermore, the punching machine includes a first machine base, a first adjusting slide rail, a first adjusting handwheel, a second adjusting handwheel, a first adjusting shaft, and a second adjusting shaft;

[0017] The edge banding machine includes a second machine base, a second adjusting slide rail, a third adjusting handwheel, a fourth adjusting handwheel, a third adjusting shaft, and a fourth adjusting shaft;

[0018] The first adjusting shaft, the second adjusting shaft, and the first adjusting slide rail are horizontally arranged inside the first machine base. The bottom of the first pipe processing table on one side of the second punching mechanism is slidably connected to the first adjusting slide rail. The first adjusting shaft and the second adjusting shaft are threadedly connected, and the first and second adjusting handwheels are connected to the ends of the first and second adjusting shafts.

[0019] The third adjusting shaft, the fourth adjusting shaft, and the second adjusting slide rail are laterally arranged inside the second machine base. The bottom of the second pipe processing table on one side of the second edge sealing mechanism is slidably connected to the adjusting slide rail. The third and fourth adjusting handwheels are threadedly connected to the ends of the third and fourth adjusting shafts.

[0020] A linkage belt is wound around the first adjustment shaft, the second adjustment shaft, the third adjustment shaft and the fourth adjustment shaft respectively.

[0021] Furthermore, the feeding device includes a manual feeding platform, a conveying device, a pushing cylinder, a lifting cylinder, a first stop block, a first pipe fitting sensor, a second pipe fitting sensor, and a pipe fitting temporary storage platform; one side of the conveying device corresponds to and is connected to the first conveying mechanism; the other side of the conveying device is connected to the manual feeding platform, and the angle between the manual feeding platform and the conveying device is adjustable; the conveying device includes a chain conveying mechanism, an outer baffle is provided on the outside of the chain conveying mechanism, and the height of the outer baffle is higher than that of the chain conveying mechanism; the pushing cylinder, the first pipe fitting sensor, and the first stop block are sequentially arranged on the outer baffle facing the punching device; the lifting cylinder and the second pipe fitting sensor are arranged in the conveying device, and the pipe fitting temporary storage platform is located at the end of the conveying device, at the same height as the first pipe fitting processing table.

[0022] Furthermore, the first and second die-cutting mechanisms each include a first punch assembly and a first die assembly arranged correspondingly above and below each other.

[0023] The first die assembly includes a first pad, a first pad hydraulic cylinder, a first cylinder assembly, a first die body, a first die connecting block, and a first die sensor;

[0024] The first pad is provided with a first slide rail above it, and the first die body is provided with a matching first slide groove below it. The first die body is slidably connected to the first pad above it.

[0025] The first pad is connected to the first pad hydraulic cylinder, which can drive the first pad to extend toward the pipe and into the interior of the pipe;

[0026] The first die body is connected to the first cylinder assembly through the first die connecting block, which can drive the first die body to extend toward the pipe and into the interior of the pipe.

[0027] The first concave mold sensor is located below the first pad.

[0028] Furthermore, the bottom middle area of ​​the first die connecting block is a hollow structure that can accommodate the first pad and the first die body. The front end of the first die body is a die-cutting mold, and the upper rear end is fixedly connected to the inner wall of the hollow structure. The two sides of the first die connecting block are connected to the first cylinder assembly through cylinder push rods. The first pad is connected to the first pad hydraulic cylinder and is located in the middle of the cylinder push rod.

[0029] Furthermore, the first punch assembly includes a first punch body, a first punch cylinder, and a first punch lateral limiting member; the first punch body has downwardly extending first punch lateral limiting members on both sides, and the downward extension length of the first punch lateral limiting members is longer than that of the first punch body; the first punch cylinder is connected above the first punch body.

[0030] Furthermore, the first punch body is a cylinder, and the bottom of the cylinder is divided into three sections from top to bottom: large, medium, and small diameters. The groove shape of the first die body matches that of the cylinder.

[0031] Furthermore, the bottom of the first punch lateral limiting member facing the end of the tube is provided with an oblique guide.

[0032] Furthermore, the punching mechanism includes a second punch assembly and a second die assembly; the second die assembly includes a second die body, a second cylinder assembly, and a second die position sensor;

[0033] The second die body is connected to the second cylinder assembly, which can drive the second die body to extend toward the pipe and into the interior of the pipe;

[0034] The second die position sensor is located below the second die body.

[0035] Furthermore, the second punch assembly includes a second punch body and a second punch lateral limiting member; the bottom of the second punch body is a hollow cavity, and the surrounding area is a cutting body; the second punch lateral limiting member is disposed on both sides of the second punch body.

[0036] Furthermore, the first positioning mechanism includes a first transverse cylinder, a first positioning cylinder, a first transverse slide rail, a first positioning mold, and a first positioning sensor; the first positioning cylinder is provided above the first positioning mold, the first positioning mold is disposed on the first transverse slide rail, the first positioning sensor is disposed below the first transverse slide rail, and the first transverse cylinder is provided on the side of the first positioning mold; the end of the first positioning mold is provided with a shape that matches the opening of the pipe fitting.

[0037] Furthermore, the first punching mechanism and the second punching mechanism include pipe edge cutters symmetrically arranged above, and punching limiting members arranged side by side with the pipe edge cutters; the punching limiting members are arranged closer to the center line of the edge sealing machine table than the pipe edge cutters; a punching fixture, a punching die insert, and a fixture top plate are arranged below; the punching fixture has a receiving groove in the middle for accommodating and cutting pipes, and the bottom of the receiving groove is provided with the punching die insert that can extend outward; the fixture top plate is provided above the punching fixture, and the fixture top plate is provided with an opening for the pipe edge cutters and the punching limiting members to pass through.

[0038] Furthermore, the first and second edge-sealing mechanisms include an edge-sealing pre-positioning component, an upper edge-sealing bending component, a lower edge-sealing bending component, an edge-sealing forming component, a deburring component, and an edge-sealing fixture; the edge-sealing fixture has a receiving groove in the middle for accommodating and sealing pipe fittings; the edge-sealing pre-positioning component and the upper edge-sealing bending component are arranged sequentially from the inside to the outside above the edge-sealing fixture; the lower edge-sealing bending component is arranged below the edge-sealing fixture, and the positions of the upper and lower edge-sealing bending components correspond to each other; the edge-sealing fixture has an edge-sealing forming component facing outwards, and the deburring component is arranged on the end face of the receiving groove of the edge-sealing fixture; the edge-sealing pre-pressing component, the upper edge-sealing bending component, the lower edge-sealing bending component, the edge-sealing forming component, and the deburring component are all equipped with cylinders for driving their movement.

[0039] Furthermore, the edge sealing pre-positioning component includes a lower pressure plate, a position sensor, and a length adjuster; when the pipe is pushed into the edge sealing fixture, the position sensor monitors the position of the opening on the pipe and adjusts the distance between the lower pressure plate and the edge sealing fixture.

[0040] Furthermore, the second positioning mechanism includes a downward cylinder, a second positioning module, a second positioning sensor, and a positioning fixture; the positioning fixture includes upper and lower grooves, the second positioning module is disposed in the upper groove, the second positioning sensor is disposed below the positioning fixture, and the downward cylinder is connected to the upper part of the positioning fixture; the second positioning module is the same size as the first positioning module.

[0041] Furthermore, the second positioning mechanism also includes a second side push plate, which is disposed on the outside of the positioning fixture and driven by a cylinder; the second side push cylinder moves before the positioning fixture, pushing the distal end of the pipe to the bottom of the sealing fixture, and then the positioning fixture clamps the proximal end of the pipe.

[0042] Furthermore, the waste discharge mechanism is located below the second punching mechanism and the second cutting mechanism. The waste discharge mechanism adopts a conveyor belt and can discharge from the discharge ports on both sides of the metal tube punching and sealing device.

[0043] The beneficial effects of this plan are:

[0044] 1) By setting the denting mechanism, punching mechanism, cutting mechanism and sealing mechanism on the same device, the four mechanisms can be linked to complete the left and right processing of the pipe fittings.

[0045] 2) Each mechanism is triggered to move by a sensor, and the cylinder drives the mechanism to move, thus completing the automated processing.

[0046] 3) The first positioning mechanism and the second positioning mechanism are used to prevent the position of the pipe fitting from deviating during punching or cutting. Attached Figure Description

[0047] Other features, objects, and advantages of the invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0048] Figure 1 This is a schematic diagram of the structure of the metal tube to be processed in an embodiment of the present invention;

[0049] Figure 2 This is a schematic diagram of the punching device and the edge sealing device in an embodiment of the present invention;

[0050] Figure 3 This is a schematic diagram of the punching device in an embodiment of the present invention;

[0051] Figure 3 This is a schematic diagram of the punching device in an embodiment of the present invention;

[0052] Figure 4 This is a schematic diagram of the punching machine in an embodiment of the present invention;

[0053] Figure 5 This is a schematic diagram of the feeding device in an embodiment of the present invention;

[0054] Figure 6 This is a schematic diagram of the denting mechanism and the punching mechanism in an embodiment of the present invention. Figure 1 ;

[0055] Figure 7This is a schematic diagram of the denting mechanism and the punching mechanism in an embodiment of the present invention. Figure 2 ;

[0056] Figure 8 This is a schematic diagram of the structure of the first positioning mechanism in an embodiment of the present invention;

[0057] Figure 9 This is a schematic diagram of the edge banding machine in an embodiment of the present invention;

[0058] Figure 10 This is a schematic diagram of the structure of the first conveying mechanism / second conveying mechanism in an embodiment of the present invention;

[0059] Figure 11 This is a schematic diagram of the structure of the second positioning mechanism in an embodiment of the present invention;

[0060] Figure 12 This is a schematic diagram of the punching mechanism and the edge sealing mechanism in an embodiment of the present invention;

[0061] Figure 13 These are top and side views of the punching mechanism in an embodiment of the present invention;

[0062] Figure 14 These are top and side views of the edge-sealing mechanism in an embodiment of the present invention;

[0063] Figure 15 This is a schematic diagram of the structure of the first die assembly in an embodiment of the present invention;

[0064] Figure 16 This is a schematic diagram of the structure of the first punch assembly in an embodiment of the present invention;

[0065] Explanation of reference numerals in the attached drawings: 100. Punching device; 110. Punching machine base; 111. First machine base; 1121. First adjusting slide rail; 1122. First adjusting handwheel; 1123. Second adjusting handwheel; 1124. First adjusting shaft; 1125. Second adjusting shaft; 113. Discharge mechanism; 114. Discharge port; 120. First punching mechanism; 121. First die-cutting mechanism; 130. Second punching mechanism; 131. Second die-cutting mechanism; 1311. First punch assembly; 13111. First punch body; 13112. First punch lateral limiting component; 13113. First punch cylinder; 1312. First die assembly; 13121. First pad plate; 13122. First pad plate hydraulic cylinder; 13123. First cylinder Components; 13124. First die body; 13125. First die connecting block; 13126. First die sensor; 13127. Hollowed-out structure; 13128. Cylinder push rod; 1321. Second punch assembly; 1322. Second die assembly; 13221. Second die body; 13222. Second cylinder assembly; 13223. Second die sensor; 140. First conveying mechanism; 141. First pipe processing table; 142. First shifting device; 143. First horizontal shifting cylinder; 144. First vertical shifting cylinder; 145. First limiting block; 146. First pipe support groove; 150. First positioning mechanism; 151. First transverse shifting cylinder; 152. First positioning cylinder; 15 3. First transverse slide rail; 154. First positioning mold; 200. Edge sealing device; 210. Edge sealing machine base; 211. Second machine base; 212. Second adjusting slide rail; 213. Third adjusting handwheel; 214. Fourth adjusting handwheel; 215. Third adjusting shaft; 216. Fourth adjusting shaft; 220. Second conveying mechanism; 221. Second pipe fitting processing table; 222. Second shifting device; 223. Second horizontal shifting cylinder; 224. Second vertical shifting cylinder; 225. Second limiting block; 226. Second pipe fitting support groove; 230. Second positioning mechanism; 231. Second side push plate; 232. Downward cylinder; 233. Second positioning module; 234. Positioning fixture; 240. First punching mechanism; 241. Second punching mechanism; 24111. Pipe edge cutter; 24112. Punching limiting component; 24121. Punching fixture; 24122. Punching die insert; 24123. Fixture top plate; 24124. First receiving groove; 242. First edge sealing mechanism; 243. Second edge sealing mechanism; 2421. Edge sealing pre-positioning component; 24211. Lower pressure plate; 24212. Position sensor; 24213. Length adjuster; 2422. Upper edge sealing bending component; 2427. Lower edge sealing bending component; 2423. Edge sealing forming component; 2424. Deburring component; 2425. Edge sealing fixture; 2426. Second receiving groove; 3. Linkage belt; 4. Feeding device; 421. Manual feeding platform; 422.Conveying device; 4221. Chain conveyor mechanism; 4222. Outer baffle; 423. Pushing cylinder; 424. Ejecting cylinder; 425. First stop block; 4261. First pipe fitting sensor; 4262. Second pipe fitting sensor; 427. Pipe fitting temporary storage platform. Detailed Implementation

[0066] The present invention will now be described in further detail with reference to the accompanying drawings.

[0067] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the claims.

[0068] like Figure 2 , 3As shown, the present invention provides a metal tube punching and sealing device, comprising a feeding device 4, a punching device 100, and a sealing device 200 connected in sequence; the punching device 100 includes a first conveying mechanism 140, a first denting mechanism 121, a first punching mechanism 120, a second denting mechanism 131, a second punching mechanism 130, and a first positioning mechanism 150 disposed above a punching machine base 110; the first denting mechanism 121, the first punching mechanism 120, and the first positioning mechanism 150 are sequentially disposed on one side of the punching machine base 110; the second denting mechanism 131 and the second punching mechanism 130 are disposed on the other side of the first punching machine base 110; there are two first positioning mechanisms 150, corresponding to the positions of the second denting mechanism 131 and the second punching mechanism 130 respectively; the first conveying mechanism 140 is disposed between the first denting mechanism 121, the first punching mechanism 120, the second denting mechanism 131, and the second punching mechanism 130; the sealing device... 200 includes a second conveying mechanism 220, a second positioning mechanism 230, a first punching mechanism 240, a first edge sealing mechanism 242, a second punching mechanism 241, and a second edge sealing mechanism 243, all disposed above the edge sealing machine platform 210. The first punching mechanism 240, the first edge sealing mechanism 242, and the two second positioning mechanisms 230 are sequentially disposed on one side of the edge sealing machine platform 210, with the first punching mechanism 240 being closer to the punching device 100. The two second positioning mechanisms 230, the second punching mechanism 241, and the second edge sealing mechanism 243 are sequentially disposed on the other side of the edge sealing machine platform 210, with the positions of the second positioning mechanisms 230 on both sides corresponding to the positions of the first punching mechanism 241, the second punching mechanism 242, and the second edge sealing mechanism 243, respectively. The second conveying mechanism 220 is disposed between the first edge sealing mechanism 242 and the second edge sealing mechanism 243, and the first conveying mechanism 140 corresponds to and is connected to the second conveying mechanism 220. In this embodiment, the pre-processed metal tubes in groups are placed on the feeding device 4 and moved one by one to the punching device 100. The left side of the tube is dented and punched using the first denting mechanism 121 and the first punching mechanism 120, respectively. Then, the left side of the tube is positioned for the first time, and the right side is dented and punched. Subsequently, it is moved to the edge-sealing device 200. First, the left side is punched and edge-sealed using a second positioning method. Then, the left side is positioned again, and the right side is punched and edge-sealed, completing the processing of the entire tube. The metal tube punching and edge-sealing device 200 of this invention integrates the four processes of denting, punching, punching, and edge-sealing into one machine, improving production efficiency and ensuring processing accuracy. Furthermore, compared to the traditional manual single-piece loading and unloading method, the loading and unloading of this equipment is faster and allows for batch loading and unloading, maximizing the utilization of labor resources.

[0069] like Figure 5 , 10 As shown, the first conveying mechanism 140 further includes a symmetrically arranged first pipe processing table 141. A first shifting device 142 is arranged inside the first pipe processing table 141. The first shifting device 142 is provided with a first horizontal shifting cylinder 143 and a first vertical shifting cylinder 144. A first limiting block 145 is provided on the first pipe processing table 141 corresponding to the positions of the first denting mechanism 121, the first punching mechanism 120, the first positioning mechanism 150, the second denting mechanism 131, and the second punching mechanism 130. The first denting mechanism 121 uses a single-sided first limiting block 145, while the others use symmetrical first limiting blocks 145. A first pipe support groove 146 is arranged sequentially in the horizontal direction on the upper boundary of the first shifting device 142, and the spacing between them matches the spacing between the first denting mechanism 121, the first punching mechanism 120, and the two first positioning mechanisms 150. In this embodiment, the first conveying mechanism 140 is responsible for moving the pipe fittings from the feeding device 4 to various mechanisms in the punching device 100 for processing. The first shifting devices 142 are symmetrically arranged on both sides, each with six first pipe fitting support grooves 146 along its upper edge. The first shifting devices 142 move via a first horizontal shifting cylinder 143 and a first vertical shifting cylinder 144. Their movement trajectory is horizontal towards the feeding device 4. When the first first pipe fitting support groove 146 moves to the first denting mechanism 121, it moves vertically, lifting the pipe fitting and moving horizontally towards the next processing mechanism. Then, it returns vertically downwards to its original position. When a pipe fitting is detected at the first denting mechanism 121, the previous movement is repeated, resulting in a visually quadrilateral cyclical movement. The first conveying mechanism 140 is responsible for moving the pipe fittings to the processing mechanism. The raised sides of the upper first pipe fitting support grooves 146 also provide initial positioning of the pipe fittings. In addition, the first limiting block 145 is used to further position the pipe fitting and prevent lateral displacement. Only a single first limiting block 145 is used at the first denting mechanism 121 because when the pipe fitting is pushed from the feeding device 4 to the first denting mechanism 121, the symmetrically arranged first limiting blocks 145 would obstruct the pipe fitting's path. Therefore, only a first limiting block 145 close to the first punching mechanism 120 is needed. Furthermore, the first denting does not require high positioning accuracy for the pipe fitting; the limiting of the first pipe fitting support groove 146 is sufficient to meet the accuracy requirements of the first denting. Therefore, no positioning mechanism corresponding to the first denting mechanism 121 is provided. This ensures processing accuracy and reduces the overall manufacturing cost of the device.

[0070] Further, the second conveying mechanism 220 includes symmetrically arranged second pipe processing tables 221. A second shifting device 222 is arranged inside the second pipe processing table 221. The second shifting device 222 contains a second horizontal shifting cylinder 223 and a second vertical shifting cylinder 224. Symmetrically arranged second limiting blocks 225 are provided on the second pipe processing table 221 at positions corresponding to the first punching mechanism 240, the first edge sealing mechanism 242, the second punching mechanism 241, and the second edge sealing mechanism 243. Second pipe support grooves 226 are sequentially arranged horizontally along the upper boundary of the second shifting device 222, with spacing matching the spacing between the first punching mechanism 240, the first edge sealing mechanism 242, and the two second positioning mechanisms 230. In this embodiment, the second conveying mechanism 220 operates on the same principle as the first conveying mechanism 140, and is used to move pipes between the first punching mechanism 240, the first edge sealing mechanism 242, the second punching mechanism 241, and the second edge sealing mechanism 243.

[0071] Furthermore, the length of the first shifting device 142 is longer than that of the second shifting device 222, and the number of the first pipe support grooves 146 is at least one more than that of the second pipe support grooves 226. The first shifting device 142 can move the pipe to the first punching structure; the starting position of the second shifting device 222 is set at the first edge sealing structure. In this embodiment, in order to better realize the linkage between the punching device and the edge sealing device 200, the running path and structure of the first shifting device 142 are improved to a certain extent. The last first pipe support groove 146 on the first shifting device 142 transports the pipe after punching on the right side to the first punching mechanism 240. The second shifting device 222 is shorter than the first shifting device 142 and transports the pipe after processing by the first punching mechanism 240 to the first edge sealing mechanism 242, the second punching mechanism 241, and the second edge sealing mechanism 243.

[0072] like Figure 4As shown, the punching machine 110 further includes a first machine base 111, a first adjusting slide rail 1121, a first adjusting handwheel 1122, a second adjusting handwheel 1123, a first adjusting shaft 1124, and a second adjusting shaft 1125; the edge banding machine 210 includes a second machine base 211, a second adjusting slide rail 212, a third adjusting handwheel 213, a fourth adjusting handwheel 214, a third adjusting shaft 215, and a fourth adjusting shaft 216; the first adjusting shaft 1124, the second adjusting shaft 1125, and the first adjusting slide rail 1121 are laterally arranged within the first machine base 111, and the bottom of the first pipe processing table 141 on one side of the second punching mechanism 130 is slidably connected to the first adjusting slide rail 1121; and the first adjusting shaft 1124... The second adjusting shaft 1125 is threadedly connected, and the first and second adjusting handwheels 1123 are connected to the ends of the first and second adjusting shafts; the third adjusting shaft 215, the fourth adjusting shaft 216, and the second adjusting slide rail 212 are horizontally arranged inside the second machine base 211, and the bottom of the second pipe processing table 221 on one side of the second edge sealing mechanism 243 is slidably connected to the adjusting slide rail; the first adjusting shaft 1124 and the second adjusting shaft 1125 are threadedly connected, and the third and fourth adjusting handwheels 214 are connected to the ends of the third and fourth adjusting shafts; a linkage belt 3 is wound on the first adjusting shaft 1124, the second adjusting shaft 1125, the third adjusting shaft 215, and the fourth adjusting shaft 216 respectively. In this embodiment, an adjusting handwheel is used to adjust the distances between the second denting mechanism 131, the second punching mechanism 130, the second punching mechanism 241, and the second edge sealing mechanism 243 on the punching machine platform and the first denting mechanism 121, the first punching mechanism 120, the first punching mechanism 240, and the first edge sealing mechanism 242. This is applicable to the processing of pipe fittings of different lengths. The specific process is as follows: first, adjust the pipe fitting hopper to its maximum width, place a standard-sized pipe fitting inside, and rotate the adjusting handwheel to adjust the hopper width to the required hopper width for the pipe fitting. After adjustment, lock the adjusting handwheel and proceed with subsequent processing. This adjustment method determines the hopper width based on the pipe fitting length; the adjusting handwheel only serves a driving function, and the width adjustment accuracy is ±0.5mm of the pipe fitting length. Since four adjusting handwheels are used in this embodiment, a linkage belt 3 is wound around the four adjusting handwheels, allowing the width adjustment of the right and left mechanisms to be achieved by adjusting a single adjusting handwheel.

[0073] like Figure 5As shown, the feeding device 4 further includes a manual feeding platform 421, a conveying device 422, a pushing cylinder 423, a lifting cylinder 424, a first stop block 425, a first pipe fitting sensor 4261, a second pipe fitting sensor 4262, and a pipe fitting temporary storage platform 427; one side of the conveying device 422 corresponds to and is connected to the first conveying mechanism 140; the other side of the conveying device 422 is connected to the manual feeding platform 421, and the angle between the manual feeding platform 421 and the conveying device 422 is adjustable; the conveying device 422 includes a chain conveyor. The chain conveying mechanism 4221 is equipped with an outer baffle 4222 on its outer side, and the height of the outer baffle 4222 is higher than that of the chain conveying mechanism 4221. The outer baffle 4222 is arranged with the pushing cylinder 423, the first pipe fitting sensor 4261, and the first stop block 425 in sequence facing the punching device 100. The top cylinder 424 and the second pipe fitting sensor 4262 are arranged in the conveying device 422. The pipe fitting temporary storage platform 427 is arranged at the end of the conveying device 422 and is at the same height as the first pipe fitting processing platform 141. The pipe is manually placed onto the manual loading platform 421 and then slid to the conveying device 422 for transmission to the punching device 100. When it reaches the second pipe sensor 4262, the top-loading cylinder 424 pushes the pipe upward. When the pipe rises, the first pipe sensor 4261 senses the pipe and triggers the push-pull cylinder 423 to push the pipe onto the pipe storage platform 427. The limiting block prevents the push-pull cylinder 423 from pushing the pipe out of the pipe storage platform 427. In this embodiment, workers manually place a pile of pre-processed pipe fittings onto the manual loading platform 421. The manual loading platform 421 can be adjusted in height and angle according to the worker's needs to facilitate loading. The loading device 4 tilts and automatically slides to the conveying device 422. The conveying device 422 adopts a chain conveying structure with symmetrical sides and moves forward at a uniform speed to the pipe fitting temporary storage platform 427, where the first stop restricts the pipe fitting's movement. At this time, the first pipe fitting sensor 4261 is triggered, and the top cylinder 424 lifts the foremost single pipe fitting. Then, the second pipe fitting sensor 4262 is triggered, and the push cylinder 423 pushes the pipe fitting to the first denting mechanism 121, where it abuts against the first limiting block 145, allowing the pipe fitting to enter the processing mechanism. The feeding device 4 only requires manual placement of the pipe fittings to be processed on the manual feeding platform 421. The feeding device 4 then automatically transports the pipe fittings to the designated processing mechanism for processing through sensors at specific locations, which greatly improves the feeding efficiency and reduces the corresponding manual labor.

[0074] like Figure 6 , 7As shown, further, the first die-cutting mechanism 121 and the second die-cutting mechanism 131 include a first punch assembly 1311 and a first die assembly 1312 arranged vertically and vertically respectively; the first die assembly 1312 includes a first pad plate 13121, a first pad plate hydraulic cylinder 13122, a first cylinder assembly 13123, a first die body 13124, a first die connecting block 13125, and a first die sensor 13126; a slide rail is provided above the first pad plate 13121, and a matching slide groove is provided below the first die body 13124, the first die... A die body 13124 is slidably connected to the first pad 13121. The first pad 13121 is connected to the first pad hydraulic cylinder 13122, which can drive the first pad 13121 to extend toward the pipe and into the pipe. The first die body 13124 is connected to the first cylinder assembly 13123 through a first die connecting block 13125, which can drive the first die body 13124 to extend toward the pipe and into the pipe. The first die sensor 13126 is located below the first pad 13121. In this example, the left and right sides of the pipe are recessed separately, and then punched. When the hollow tube moves to the first die-cutting mechanism 121, the first die sensor 13126 is triggered. The first pad 13121 is pushed into the tube by the first pad hydraulic cylinder 13122. At the same time, the first die body 13124 also moves into the tube under the action of the first cylinder assembly 13123. Since the tube is hollow, the function of the first pad 13121 is to solve the problem of deformation of the tube under external force during die-cutting. The first pad 13121 extends into the tube to support the first die body 13124 and to reinforce the end of the tube. Therefore, it is more appropriate for the first pad 13121 to be in the shape of a flat metal plate with a width slightly smaller than the width of the tube.

[0075] like Figure 15As shown, further, the bottom middle area of ​​the first die connecting block 13125 is a hollow structure 13127, which can accommodate the first pad 13121 and the first die body 13124. The front end of the first die body 13124 is a die-cutting mold, and the upper rear end is fixedly connected to the inner wall of the hollow structure 13127. The two sides of the first die connecting block are connected to the first cylinder assembly 13123 through cylinder push rods 13128. The first pad 13121 is connected to the first pad hydraulic cylinder 13122 and is located in the middle of the cylinder push rods 13128. In this embodiment, in order to prevent the cylinders of the first pad 13121 and the first die body 13124 from interfering with each other during operation, the first cylinder assembly 13123 needs to be connected through the first die connecting block and the cylinder push rods 13128 on both sides. The first pad 13121 in the middle can be connected to the first pad hydraulic cylinder 13122 on the rear side, or it can be linked with the die body in front.

[0076] like Figure 16 As shown, the first punch assembly 1311 further includes a first punch body 13111, a first punch cylinder 13113, and a first punch lateral limiting member 13112. The first punch body 13111 has downwardly extending first punch lateral limiting members 13112 on both sides, the downward extension length of which is longer than that of the first punch body 13111. The first punch cylinder 13113 is connected above the first punch body 13111. In this embodiment, the first punch lateral limiting members 13112 on both sides serve a guiding function, preventing the center of the first punch body 13111 from being misaligned with the pre-processed position of the pipe fitting when the first punch body 13111 descends via the first punch cylinder 13113, thus improving the accuracy of the concave drilling.

[0077] Furthermore, the first punch body 13111 is a cylinder, with the bottom of the cylinder divided into three sections from top to bottom: large, medium, and small diameters. The groove shape of the first die body 13124 matches this. In this embodiment, a three-section diameter structure is adopted at the end of the first punch body 13111 to create a recess in the pipe fitting. The perimeter of the opening in the pipe fitting has a gradually increasing steep slope. This design results in a stronger recessed hole with greater load-bearing capacity and less susceptibility to deformation during use in a smart bed.

[0078] Furthermore, the bottom end of the first punch lateral limiting member 13112 facing the pipe is provided with an oblique guide. In this embodiment, the first punch lateral limiting member 13112 is provided with an inner chamfer, which can effectively prevent scratches to the pipe.

[0079] Further, the first punching mechanism 120 and the second punching mechanism 130 include a second punch assembly 1321 and a second die assembly 1322; the second die assembly 1322 includes a second die body 13221, a second cylinder assembly 13222, and a second die sensor 13223; the second die body 13221 is connected to the second cylinder assembly 13222, and can drive the second die body 13221 to extend toward the pipe and into the interior of the pipe; the second die position sensor 24212 is disposed below the second die body 13221. In this embodiment, when the pipe is sensed to have moved to the punching mechanism, the second punch body extends into the hollow pipe under the drive of the second cylinder assembly 13222, and the second punch assembly 1321 moves downward to cut a round hole based on the previous concave drilling.

[0080] Furthermore, the second punch assembly 1321 includes a second punch body and a second punch lateral limiting member; the bottom of the second punch body is a hollow cavity, and the surrounding area is a cutting body; the second punch lateral limiting member is disposed on both sides of the second punch body. In this embodiment, the second punch lateral limiting member positions the pipe, and the second punch body, under the action of the cylinder, moves downward to cut the pipe.

[0081] like Figure 8 As shown, the first positioning mechanism 150 further includes a first transverse cylinder 151, a first positioning cylinder 152, a first transverse slide rail 153, a first positioning mold 154, and a first positioning sensor; the first positioning cylinder 152 is provided above the first positioning mold 154, the first positioning mold 154 is disposed on the first transverse slide rail 153, the first positioning sensor is disposed below the first transverse slide rail 153, and the first transverse cylinder 151 is provided on the side of the first positioning mold 154; the end of the first positioning mold 154 is provided with a shape that matches the opening of the pipe fitting. In this embodiment, the pipe fitting processed by the left-side punching mechanism already has a hole on its left side. To ensure that the processing position during the right-side punching process is aligned with the processing mark on the left side and is centered on the pipe fitting, the pipe fitting needs to be positioned before processing on the right side. A first positioning mechanism 150 is provided next to the first punching mechanism 120 to position the pipe fitting that has already been punched on the left side. When the pipe fitting is detected, the first positioning mold 154 is driven by the first transverse cylinder 151 to move along the first transverse slide rail 153. Subsequently, the first positioning cylinder 152 moves downward to press the first positioning mold 154 onto the pipe fitting for positioning. The first positioning mechanism 150 mainly positions the second punching mechanism 131 and the second punching mechanism 130 to improve the punching accuracy.

[0082] like Figure 12 , 13As shown, further, the first punching mechanism 240 and the second punching mechanism 241 include pipe edge cutters 24111 symmetrically arranged above, and punching limiting members 24112 arranged side by side with the pipe edge cutters 24111; the punching limiting members 24112 are arranged closer to the center line of the edge sealing machine table 210 than the pipe edge cutters 24111; the punching fixture 24121 and the punching die insert 241 are arranged below. 22. Fixture top plate 24123; The punching fixture 24121 has a first receiving groove 24124 in the middle for accommodating and cutting pipe fittings. The bottom of the first receiving groove 24124 is provided with an outwardly extending punching die insert. The punching fixture top plate 24123 is provided above the punching fixture 24121. The fixture top plate 24123 is provided with an opening for the pipe edge cutter 24111 and the punching limiting member 24112 to pass through. In this embodiment, in order to seal the end of the pipe fitting, a section of the vertical edges on both sides of the pipe fitting needs to be cut off first, and then the protruding parts are bent to complete the sealing. When the pipe is moved to the first punching mechanism 240 and the second punching mechanism 241, it is pushed into the first receiving groove 24124 of the punching fixture 24121 by the second positioning mechanism 230. Since the impact stress and cutting accuracy requirements generated by punching are higher than those of the punching mechanism, placing the pipe in the receiving groove in conjunction with the fixture top plate 24123 can better position it around the perimeter. Subsequently, the upper punching limiter 24112 moves downward under the action of the cylinder to further position the pipe. Then, the pipe edge cutter 24111 moves down to cut off a section of the vertical edge on both sides of the pipe end.

[0083] like Figure 14As shown, further, the first edge sealing mechanism 242 and the second edge sealing mechanism 243 include an edge sealing pre-positioning component 2421, an upper edge sealing bending component 2422, a lower edge sealing bending component 2427, an edge sealing forming component 2423, a deburring component 2424, and an edge sealing fixture 2425; the edge sealing fixture 2425 has a second receiving groove 2426 in the middle for accommodating and sealing pipe fittings, and the edge sealing pre-positioning component 2421 and the upper edge sealing bending component 2422 are arranged sequentially from the inside to the outside on the edge sealing fixture 2425; the edge sealing fixture Below 2425, a lower edge sealing bending component 2427 is provided, and the upper edge sealing bending component 2422 and the lower edge sealing bending component 2427 are positioned corresponding to each other; the edge sealing fixture 2425 is provided with an edge sealing forming component 2423 facing outward, and the deburring component 2424 is provided in the direction of the end face of the second receiving groove 2426; the edge sealing pre-pressing component, the upper edge sealing bending component 2422, the lower edge sealing bending component 2427, the edge sealing forming component 2423, and the deburring component 2424 are all provided with cylinders to drive their movement. In this embodiment, after the pipe fitting is punched, it is moved to the edge-sealing mechanism. The second positioning mechanism 230 pushes the pipe fitting into the receiving groove of the edge-sealing fixture 2425. The upper pre-positioning component presses down to fix the pipe fitting in place. Then, the upper edge-sealing bending component 2422 and the lower edge-sealing bending component 2427 move towards the pipe fitting, initially bending the protruding edge. Afterward, the upper and lower edge-sealing bending components 2422 and 2427 return to their original positions, and the outer edge-sealing forming component 2423 presses against the initially bent portion of the pipe fitting end, completing the edge-sealing shaping. Finally, the hydraulic cylinder in the edge-sealing deburring component 2424 drives the cutter to pass across the edge-sealing forming plane for leveling and deburring. The processed pipe fitting is then transferred to the unloading area via the second conveying mechanism. At this point, the punching, piercing, edge-sealing, and forming processes of the pipe fitting are all completed.

[0084] Furthermore, the edge-sealing pre-positioning assembly 2421 includes a lower pressure plate 24211, a position sensor 24212, and a length adjuster 24213. When the pipe is pushed into the edge-sealing fixture 2425, the position sensor 24212 monitors the position of the opening on the pipe and adjusts the distance between the lower pressure plate 24211 and the edge-sealing fixture 2425. In this embodiment, the position sensor 24212 is used in the pre-positioning assembly to control the distance between the lower pressure plate 24211 and the end of the pipe, mainly to prevent the lower pressure plate 24211 from touching the already opened opening during pre-positioning, which can effectively avoid scratching the opening.

[0085] like Figure 9 , 11As shown, the second positioning mechanism 230 further includes a downward cylinder 232, a second positioning module 233, a second positioning sensor, and a positioning fixture 234. The positioning fixture 234 includes upper and lower recessed parts. The second positioning module 233 is disposed in the upper recessed part, and the second positioning sensor is disposed below the positioning fixture 234. The downward cylinder 232 is connected to the upper part of the positioning fixture 234. The second positioning module 233 is the same size as the first positioning module. In this embodiment, since the accuracy requirements for punching and sealing are higher than those for concave edge and punching, the positioning requirements for the pipe fitting are higher. The second positioning mechanism 230 is disposed on both sides corresponding to the first punching mechanism 240, the first sealing mechanism 242, the second punching mechanism 241, and the second sealing mechanism 243, respectively, to process the pipe fitting. When the second positioning sensor detects the pipe fitting, the vertically opening positioning clamp 234 begins to close vertically to limit the pipe fitting. The upper positioning clamp 234 is also equipped with a positioning module that can extend into the opening of the pipe fitting for further positioning.

[0086] Furthermore, the second positioning mechanism 230 also includes a second side push plate 231, disposed on the outside of the positioning fixture 234 and driven by a cylinder; the second side push cylinder moves before the positioning fixture 234, pushing the distal end of the pipe to the bottom of the edge sealing fixture 2425, and then the positioning fixture 234 clamps the proximal end of the pipe. In this embodiment, since the punching and edge sealing positions of the pipe are closer to the edge than the denting and punching positions, considering the overall appearance of the punching and edge sealing device 200, the punching mechanism and the edge sealing mechanism are positioned closer to the outside than the denting mechanism and the punching mechanism. Therefore, when the pipe is transported to the punching mechanism and the edge sealing mechanism, it needs to be pushed into the corresponding receiving groove by the second side push plate 231 for processing. The second side push plate 231 is designed to better coordinate the various mechanisms in the device when processing the pipe, and to better process the end of the pipe by the punching mechanism and the edge sealing mechanism.

[0087] like Figure 4 As shown, the waste discharge mechanism 113 is further positioned below the second punching mechanism 130 and the second cutting mechanism 241. The waste discharge mechanism 113 uses a conveyor belt and discharges waste from the outlets 114 on both sides of the metal pipe punching and sealing device 200. In this embodiment, because punching and cutting will cut off some metal edges from the pipe fittings, these edges fall directly into the space below the machine. Due to the large weight of the machine, it is difficult to move and clean, leading to excessive accumulation of waste below the machine. The waste discharge mechanism 113, with a conveyor belt positioned below the punching and cutting mechanisms, transports waste and debris, discharging it from the outlets 114 on both sides of the machine for easy cleaning.

[0088] The entire processing flow is as follows: Pipes are manually stacked onto the feeding device. The feeding device, via sensors, pushes individual pipes from the pipe storage platform to the first denting mechanism. Then, the first conveying mechanism transports the pipes from the first denting mechanism to the first punching mechanism, the second denting mechanism, the second punching mechanism, and the first edge-punching mechanism for processing. Subsequently, the second conveying mechanism is activated, transporting the pipes to the first edge-sealing mechanism, the second edge-punching mechanism, and the second edge-sealing mechanism for processing. During processing by the second denting mechanism and the second punching mechanism, the pipes are positioned by the first positioning mechanism. During processing by the first edge-punching mechanism, the first edge-sealing mechanism, the second edge-punching mechanism, and the second edge-sealing mechanism, the pipes are positioned by the second positioning mechanism. After completion, the pipes are transported to the unloading device.

[0089] The automatic pipe fitting processing production line of the present invention also requires an electrical control system to achieve the above functions, such as PLC, industrial computer, program, circuit, air circuit layout, etc. The above functions can all be achieved by existing electrical control technology, which will not be described in detail here.

[0090] The sensors used in each mechanism of this invention can be laser rangefinders, ultrasonic rangefinders, and stepper motor encoders, etc.; the drive devices used in each mechanism can be cylinders, hydraulic cylinders, motors, etc., which can be replaced according to the actual power and the usage environment.

[0091] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope.

Claims

1. A metal tube punching and sealing device, characterized in that, It includes a feeding device, a punching device, and an edge sealing device that are connected in sequence. The punching device includes a first conveying mechanism, a first denting mechanism, a first punching mechanism, a second denting mechanism, a second punching mechanism, and a first positioning mechanism, all disposed above the punching machine. The first denting mechanism, the first punching mechanism, and the first positioning mechanism are sequentially arranged on one side of the punching machine. The second denting mechanism and the second punching mechanism are located on the other side of the first punching machine. There are two first positioning mechanisms, which correspond to the positions of the second denting mechanism and the second punching mechanism, respectively. The first conveying mechanism is disposed between the first denting mechanism, the first punching mechanism, the second denting mechanism, and the second punching mechanism; The edge sealing device includes a second conveying mechanism, a second positioning mechanism, a first punching mechanism, a first edge sealing mechanism, a second punching mechanism, and a second edge sealing mechanism, all disposed above the edge sealing machine. The first punching mechanism, the first edge sealing mechanism, and the two second positioning mechanisms are sequentially arranged on one side of the edge sealing machine, with the first punching mechanism being closer to the punching device; Two second positioning mechanisms, a second punching mechanism, and a second edge sealing mechanism are sequentially arranged on the other side of the edge sealing machine platform, with the positions of the second positioning mechanisms on both sides corresponding to the positions of the first punching mechanism, the second punching mechanism, the first edge sealing mechanism, and the second edge sealing mechanism, respectively. The second conveying mechanism is disposed between the first edge sealing mechanism and the second edge sealing mechanism, and the first conveying mechanism corresponds to and is connected to the second conveying mechanism.

2. The metal tube punching and sealing device according to claim 1, characterized in that, The first conveying mechanism includes a symmetrically arranged first pipe processing table. A first shifting device is arranged inside the first pipe processing table. The first shifting device is equipped with a first horizontal shifting cylinder and a first vertical shifting cylinder. A first limiting block is provided on the first pipe processing table corresponding to the positions of the first denting mechanism, the first punching mechanism, the first positioning mechanism, the second denting mechanism, and the second punching mechanism. The first denting mechanism uses a single-sided first limiting block, while the others use symmetrical first limiting blocks. A first pipe support groove is arranged sequentially in the horizontal direction on the upper boundary of the first shifting device, and the spacing between them matches the spacing between the first denting mechanism, the first punching mechanism, and the two first positioning mechanisms.

3. The metal tube punching and sealing device according to claim 2, characterized in that, The second conveying mechanism includes a symmetrically arranged second pipe processing table, and a second shifting device is arranged inside the second pipe processing table. The second shifting device is equipped with a second horizontal shifting cylinder and a second vertical shifting cylinder. The second pipe processing table is provided with symmetrically arranged second limiting blocks at positions corresponding to the first punching mechanism, the first edge sealing mechanism, the second punching mechanism, and the second edge sealing mechanism. The upper boundary of the second shifting device is provided with second pipe support grooves in the horizontal direction, and the spacing between them matches the spacing between the first punching mechanism, the first edge sealing mechanism, and the two second positioning mechanisms.

4. The metal tube punching and sealing device according to claim 3, characterized in that, The length of the first shifting device is longer than that of the second shifting device, and the number of the first pipe support grooves is at least one more than that of the second pipe support grooves. The first shifting device can move the pipe to the first punching mechanism. The starting position of the second shifting device is set at the first sealing structure.

5. A metal tube punching and sealing device according to claim 3, characterized in that, The punching machine includes a first machine base, a first adjusting slide rail, a first adjusting handwheel, a second adjusting handwheel, a first adjusting shaft, and a second adjusting shaft; The edge banding machine includes a second machine base, a second adjusting slide rail, a third adjusting handwheel, a fourth adjusting handwheel, a third adjusting shaft, and a fourth adjusting shaft; The first adjusting shaft, the second adjusting shaft, and the first adjusting slide rail are horizontally arranged inside the first machine base. The bottom of the first pipe processing table on one side of the second punching mechanism is slidably connected to the first adjusting slide rail. The first adjusting shaft and the second adjusting shaft are threadedly connected, and the first and second adjusting handwheels are connected to the ends of the first and second adjusting shafts. The third adjusting shaft, the fourth adjusting shaft, and the second adjusting slide rail are laterally arranged inside the second machine base. The bottom of the second pipe processing table on one side of the second edge sealing mechanism is slidably connected to the adjusting slide rail. The third and fourth adjusting handwheels are threadedly connected to the ends of the third and fourth adjusting shafts. A linkage belt is wound around the first adjustment shaft, the second adjustment shaft, the third adjustment shaft and the fourth adjustment shaft respectively.

6. The metal tube punching and sealing device according to claim 2, characterized in that, The feeding device includes a manual feeding platform, a conveying device, a pushing cylinder, a lifting cylinder, a first stop block, a first pipe fitting sensor, a second pipe fitting sensor, and a pipe fitting temporary storage platform. One side of the conveying device corresponds to and is connected to the first conveying mechanism. The other side of the conveying device is connected to the manual feeding platform, and the angle between the manual feeding platform and the conveying device is adjustable. The conveying device includes a chain conveying mechanism, and an outer baffle is provided on the outside of the chain conveying mechanism. The height of the outer baffle is higher than that of the chain conveying mechanism. The pushing cylinder, the first pipe fitting sensor, and the first stop block are arranged sequentially on the outer baffle facing the punching device. The lifting cylinder and the second pipe fitting sensor are located in the conveying device, and the pipe fitting temporary storage platform is located at the end of the conveying device, at the same height as the first pipe fitting processing table.

7. A metal tube punching and sealing device according to claim 1, characterized in that, The first and second denting mechanisms each include a first punch assembly and a first die assembly arranged vertically and vertically. The first die assembly includes a first pad, a first pad hydraulic cylinder, a first cylinder assembly, a first die body, a first die connecting block, and a first die sensor; A slide rail is provided above the first pad, and a matching slide groove is provided below the first die body. The first die body and the first pad are slidably connected up and down. The first pad is connected to the first pad hydraulic cylinder, which can drive the first pad to extend toward the pipe and into the interior of the pipe; The first die body is connected to the first cylinder assembly through the first die connecting block, which can drive the first die body to extend toward the pipe and into the interior of the pipe. The first concave mold sensor is located below the first pad.

8. A metal tube punching and sealing device according to claim 7, characterized in that, The bottom center area of ​​the first die connecting block is a hollow structure that can accommodate the first pad and the first die body. The front end of the first die body is a die-cutting mold, and the upper rear end is fixedly connected to the inner wall of the hollow structure. The two sides of the first die connecting block are connected to the first cylinder assembly through cylinder push rods. The first pad is connected to the first pad hydraulic cylinder and is located in the middle of the cylinder push rod.

9. A metal tube punching and sealing device according to claim 8, characterized in that, The first punch assembly includes a first punch body, a first punch cylinder, and a first punch lateral limiting member; the first punch body is provided with downwardly extending first punch lateral limiting members on both sides, and the downward extension length of the first punch lateral limiting members is longer than that of the first punch body; the first punch cylinder is connected above the first punch body.

10. A metal tube punching and sealing device according to claim 9, characterized in that, The first punch body is a cylinder, and the bottom of the cylinder is divided into three sections from top to bottom: large, medium and small diameters. The groove shape of the first die body matches it.

11. A metal tube punching and sealing device according to claim 10, characterized in that, The bottom of the first punch lateral limiting member facing the end of the tube is provided with an oblique guide.

12. A metal tube punching and sealing device according to claim 1, characterized in that, The first punching mechanism and the second punching mechanism include a second punch assembly and a second die assembly; the second die assembly includes a second die body, a second cylinder assembly, and a second die sensor; The second die body is connected to the second cylinder assembly, which can drive the second die body to extend toward the pipe and into the interior of the pipe; The second die sensor is located below the second die body.

13. A metal tube punching and sealing device according to claim 12, characterized in that, The second punch assembly includes a second punch body and a second punch lateral limiting member; the bottom of the second punch body is a hollow cavity, and the surrounding area is a cutting body; the second punch lateral limiting member is disposed on both sides of the second punch body.

14. A metal tube punching and sealing device according to claim 1, characterized in that, The first positioning mechanism includes a first transverse cylinder, a first positioning cylinder, a first transverse slide rail, a first positioning mold, and a first positioning sensor; the first positioning cylinder is provided above the first positioning mold, the first positioning mold is set on the first transverse slide rail, the first positioning sensor is set below the first transverse slide rail, and the first transverse cylinder is provided on the side of the first positioning mold; the end of the first positioning mold is provided with a shape that matches the opening of the pipe fitting.

15. A metal tube punching and sealing device according to claim 1, characterized in that, The first and second punching mechanisms include pipe edge cutters symmetrically arranged above, and punching limiting members arranged side by side with the pipe edge cutters; the punching limiting members are positioned closer to the center line of the edge sealing machine table than the pipe edge cutters; a punching fixture, a punching die insert, and a fixture top plate are arranged below; the punching fixture has a first receiving groove in the middle to accommodate and cut pipes, and the bottom of the first receiving groove is provided with the punching die insert that can extend outward; the fixture top plate is provided above the punching fixture, and the fixture top plate is provided with an opening for the pipe edge cutters and the punching limiting members to pass through.

16. A metal tube punching and sealing device according to claim 1, characterized in that, The first and second edge-sealing mechanisms include an edge-sealing pre-positioning component, an upper edge-sealing bending component, a lower edge-sealing bending component, an edge-sealing forming component, a deburring component, and an edge-sealing fixture. The edge-sealing fixture has a second receiving groove in the middle to accommodate and seal pipe fittings. The edge-sealing pre-positioning component and the upper edge-sealing bending component are arranged sequentially from the inside to the outside above the edge-sealing fixture. The lower edge-sealing bending component is arranged below the edge-sealing fixture, and the positions of the upper and lower edge-sealing bending components correspond to each other. The edge-sealing fixture has an edge-sealing forming component facing outward, and the deburring component is arranged on the end face of the second receiving groove. The edge-sealing pre-pressing component, the upper edge-sealing bending component, the lower edge-sealing bending component, the edge-sealing forming component, and the deburring component are all equipped with cylinders to drive their movement.

17. A metal tube punching and sealing device according to claim 16, characterized in that, The edge sealing pre-positioning assembly includes a lower pressure plate, a position sensor, and a length adjuster; when the pipe is pushed into the edge sealing fixture, the position sensor monitors the position of the opening on the pipe and adjusts the distance between the lower pressure plate and the edge sealing fixture.

18. A metal tube punching and sealing device according to claim 1, characterized in that, The second positioning mechanism includes a downward cylinder, a second positioning module, a second positioning sensor, and a positioning fixture; the positioning fixture includes upper and lower grooves, the second positioning module is disposed in the upper groove, the second positioning sensor is disposed below the positioning fixture, and the downward cylinder is connected to the upper part of the positioning fixture; the second positioning module is the same size as the first positioning module.

19. A metal tube punching and sealing device according to claim 18, characterized in that, The second positioning mechanism also includes a second side push plate, which is disposed on the outside of the positioning fixture and driven by a cylinder; the second side push cylinder moves before the positioning fixture, pushing the far end of the pipe to the bottom of the sealing fixture, and then the positioning fixture clamps the proximal end of the pipe.

20. A metal tube punching and sealing device according to claim 1, characterized in that, The waste discharge mechanism is located below the second punching mechanism and the second cutting mechanism. The waste discharge mechanism uses a conveyor belt and can discharge from the discharge ports on both sides of the metal pipe punching and sealing device.

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