Pipe piercing apparatus
By designing an automated pipe punching device, the problems of low efficiency and high defect rate caused by manual feeding in the existing technology have been solved, and efficient and automated pipe punching has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN TEMING MASCH CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-06-16
Smart Images

Figure CN224359237U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe fitting processing equipment technology, and in particular to a pipe fitting punching device. Background Technology
[0002] Pipe fittings are commonly used as frame materials for various types of furniture, printing equipment, portable ladders, photography studios, drone base stations, etc. For example, there are various products such as recliners, camp beds, portable tables, portable tents, UV printing machine frames, and multi-functional engineering ladders. Their frames can generally be made of materials such as stainless steel, aluminum alloy, and cold-drawn materials. Because pipe fittings have high overall rigidity, they generally need to be punched when processing the pipes.
[0003] However, using the above method, the existing pipe processing equipment relies entirely on manual labor to punch holes in pipe fittings. Each time a pipe fitting is placed on the punching machine, a very cumbersome process is required, which affects processing efficiency and results in a high defect rate.
[0004] Chinese patent CN222817743U discloses a novel integrated punching mechanism, comprising a punching bracket (1), a positioning and clamping punching assembly (3) for positioning materials and punching, a punching drive assembly (2) for driving the positioning and clamping punching assembly (3) to move, and an end punch assembly (4) for the end of the material. The punching drive assembly (2) is mounted on the punching bracket (1); the punching drive assembly (2) includes a punching linear drive device (21) and a punching die frame (22); the end punch assembly (4) is longitudinally slidably connected to the punching die frame (22); the positioning and clamping punching assembly... (3) Includes a punching fixing block (31), a punching guide block (32), a punching positioning mold (33) for clamping materials, and a punch (35) for punching. The fixing block is longitudinally slidably connected to the punching mold frame (22). The punching guide block (32) is vertically slidably connected to the punching fixing block (31) and the punch (35) is fixedly connected to the punching fixing block (31). The punching positioning mold (33) is laterally slidably connected to the punching guide block (32) and the punch (35). After the material is clamped laterally, the punch (35) protrudes from the punching positioning mold (33). Although this new integrated punching mechanism can effectively improve punching efficiency and punching quality, it is designed for long pipes and requires manual placement of pipes one by one during processing, resulting in a low degree of automation. Utility Model Content
[0005] Therefore, it is necessary to provide a pipe punching device to address the problems of existing punching devices being designed for long pipes, requiring manual feeding, and having a low degree of automation.
[0006] A pipe punching device, comprising:
[0007] frame;
[0008] A conveying mechanism, which is mounted on the frame;
[0009] A punching mechanism, which is mounted on the frame;
[0010] A pipe fitting positioning mechanism, wherein the pipe fitting positioning mechanism is disposed between the conveying mechanism and the punching mechanism; and
[0011] The feeding mechanism is used to transfer the pipe fitting from the pipe fitting positioning mechanism to the punching mechanism.
[0012] The aforementioned pipe punching device, through the cooperation of the frame, conveying mechanism, punching mechanism, pipe positioning mechanism and feeding mechanism, can automatically complete the feeding, positioning, feeding and punching steps. It has a high degree of automation, effectively improves the quality of pipe punching and increases production efficiency.
[0013] In one embodiment, the conveying mechanism includes a drive wheel, a driven wheel, a conveyor belt, and a conveyor driver. The drive wheel and the driven wheel are arranged opposite to each other along the conveying direction of the frame. The conveyor belt is wound between the drive wheel and the driven wheel. The conveyor driver is fixedly mounted on the frame. The drive wheel is drivenly connected to the conveyor driver. Multiple baffles are spaced apart on the conveyor belt, and a placement groove for placing pipe fittings is provided between two adjacent baffles.
[0014] In one embodiment, the pipe positioning mechanism includes a lifting assembly, a shaft steering assembly, and a side-push positioning assembly. The lifting assembly includes a lifting plate and a lifting driver. The lifting driver is fixedly mounted on the frame, and the lifting plate is throttle-connected to the lifting driver. The shaft steering assembly is mounted on the lifting plate, and the side-push positioning assembly is mounted on the frame. The side-push positioning assembly is arranged adjacent to the shaft steering assembly.
[0015] In one embodiment, the shaft steering assembly includes a fixed base, a steering wheel, a steering drive, a drive gear, a transmission gear, a support base, and a support wheel. The fixed base and the support base are disposed opposite to each other on the lifting plate. Both the fixed base and the support base are provided with limiting grooves for defining the position of the pipe fitting. The steering drive is fixedly disposed on the fixed base, and the steering wheel is rotatably disposed on the fixed base. The drive gear is drivenly connected to the steering drive, the transmission gear is coaxially connected to the steering wheel, and the support wheel is rotatably disposed on the support base.
[0016] In one embodiment, the horizontal plane at the top of the steering wheel is higher than the horizontal plane at the bottom of the limiting groove, and the horizontal plane at the top of the support wheel is coplanar with the horizontal plane at the top of the steering wheel.
[0017] In one embodiment, the side-push positioning assembly includes a mounting base, a pusher block, and a pusher driver. The mounting base is fixedly mounted on the frame, the pusher driver is fixedly mounted on the mounting base, and the pusher block is drively connected to the pusher driver.
[0018] In one embodiment, the side-push positioning assembly further includes a swing arm, an upper pressure roller, and a swing driver. The swing driver is fixedly mounted on the mounting base, the swing arm is hinged to the mounting base, the end of the swing arm away from the mounting base is connected to the swing driver, and the upper pressure roller is rotatably mounted on the swing arm.
[0019] In one embodiment, the feeding mechanism includes a base frame, a guide rod, a slide, a feeding clamp, and a feeding driver. The base frame is fixedly mounted on the machine frame, the guide rod is mounted on the base frame along the feeding direction, the slide is slidably connected to the guide rod, the feeding clamp is fixedly connected to the slide, the feeding driver is fixedly mounted on the base frame, and the slide is drively connected to the feeding driver.
[0020] In one embodiment, the punching mechanism includes a placement seat, a top-loading assembly, a punching die assembly, and a drilling assembly. The placement seat is fixedly mounted on the frame and has a receiving groove adapted to the pipe fitting. The top-loading assembly and the punching die assembly are respectively disposed at both ends of the placement seat, and the drilling assembly is correspondingly disposed to the punching die assembly.
[0021] In one embodiment, the punching die assembly includes a punching die base, a punching die, a fixed plate, a push block, a connecting rod, a push plate, and a push driver. The punching die base is fixedly mounted on the frame. The punching die base has an axially arranged slot and a through hole. The punching die includes a mounting part and a die head connected to the mounting part. The mounting part has an axially arranged threaded hole. The mounting part is engaged in the slot. A bolt passes through the through hole and engages with the threaded hole. The punching die is detachably connected to the punching die base. The die head has a punching hole. The fixed plate is fixedly connected to the punching die base. The push driver is fixedly mounted on the frame. The push plate is drivenly connected to the push driver. One end of the connecting rod is fixedly connected to the push plate. The other end of the connecting rod passes through the fixed plate and is fixedly connected to the push block. The push block has an axially arranged clearance groove adapted to the die head. Attached Figure Description
[0022] Figure 1 This is an assembly structure diagram of the pipe punching device in one embodiment of the present utility model;
[0023] Figure 2 For example Figure 1 The assembly structure diagram of the conveying mechanism in the pipe punching device shown;
[0024] Figure 3 For example Figure 1 The assembly structure diagram of the pipe positioning mechanism in the pipe punching device shown;
[0025] Figure 4 For example Figure 3 The diagram shows the assembly structure of the central axis steering component in the pipe positioning mechanism.
[0026] Figure 5 For example Figure 1 The assembly structure diagram of the feeding mechanism in the pipe punching device shown;
[0027] Figure 6 For example Figure 1 The assembly structure diagram of the punching mechanism in the pipe punching device shown;
[0028] Figure 7 For example Figure 6 The diagram shows the assembly structure of the punching die assembly and the punching assembly in the punching mechanism.
[0029] The meanings of the numbers in the attached diagram are as follows:
[0030] 100 - Pipe fitting punching device;
[0031] 10-Rack;
[0032] 20-Conveying mechanism, 21-Driving wheel, 22-Driven wheel, 23-Conveyor belt, 231-Baffle, 232-Placement trough, 24-Conveying driver;
[0033] 30-Pipe positioning mechanism, 31-Lifting assembly, 311-Lifting plate, 312-Lifting drive, 32-Shaft steering assembly, 321-Fixed seat, 322-Steering wheel, 323-Steering drive, 324-Drive gear, 325-Transmission gear, 326-Support seat, 327-Support wheel, 33-Side push positioning assembly, 331-Mounting seat, 332-Push block, 333-Push drive, 334-Swing arm, 335-Upper pressure roller, 336-Swing drive;
[0034] 40-Feeding mechanism, 41-Base frame, 42-Guide rod, 43-Slide, 44-Feeding clamp, 441-Clamping block, 442-Clamping driver, 45-Feeding driver;
[0035] 50-Punching mechanism, 51-Placement seat, 511-Accommodation groove, 52-Ejector assembly, 521-Ejector seat, 522-Ejector block, 523-Ejector driver, 524-Guide rod, 53-Punching die assembly, 531-Punching die seat, 532-Punching die, 533-Fixed plate, 534-Push block, 535-Connecting rod, 536-Push plate, 537-Push driver, 54-Drilling assembly, 541-Mounting bracket, 542-Punching head, 543-Punching guide rail, 544-Punching slide, 545-Punching driver. Detailed Implementation
[0036] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0037] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0040] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0041] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0042] Please see Figure 1 The pipe punching device 100 of this utility model includes a frame 10, a conveying mechanism 20, a pipe positioning mechanism 30, a feeding mechanism 40, and a punching mechanism 50. The conveying mechanism 20, the pipe positioning mechanism 30, and the punching mechanism 50 are arranged sequentially along the feeding direction. The feeding mechanism 40 is located between the pipe positioning mechanism 30 and the punching mechanism 50. The feeding mechanism 40 is used to convey the pipe from the pipe positioning mechanism 30 to the punching mechanism 50.
[0043] Please see Figure 2The conveying mechanism 20 includes a drive wheel 21, a driven wheel 22, a conveyor belt 23, and a conveyor driver 24. The drive wheel 21 and the driven wheel 22 are arranged opposite to each other along the conveying direction of the frame 10. The conveyor belt 23 is wound around the drive wheel 21 and the driven wheel 22. The conveyor driver 24 is fixedly mounted on the frame 10. The drive wheel 21 is connected to the conveyor driver 24 in a transmission manner. A plurality of baffles 231 are spaced apart on the conveyor belt 23. A placement groove 232 for placing pipe fittings is provided between two adjacent baffles 231.
[0044] Please see Figure 3 and Figure 4 The pipe positioning mechanism 30 includes a lifting assembly 31, a shaft steering assembly 32, and a side-push positioning assembly 33. The lifting assembly 31 is mounted on the frame 10, the shaft steering assembly 32 is mounted on the lifting assembly 31, and the side-push positioning assembly 33 is mounted on the frame 10. The side-push positioning assembly 33 and the shaft steering assembly 32 are arranged adjacent to each other.
[0045] Please see Figure 3 The lifting assembly 31 includes a lifting plate 311 and a lifting driver 312. The lifting driver 312 is fixedly mounted on the frame 10, and the lifting plate 311 is connected to the lifting driver 312 in a transmission connection.
[0046] Please see Figure 4 The shaft steering assembly 32 is mounted on the lifting plate 311. The shaft steering assembly 32 includes a fixed base 321, a steering wheel 322, a steering driver 323, a drive gear 324, a transmission gear 325, a support base 326, and a support wheel 327. The fixed base 321 and the support base 326 are arranged opposite to each other on the lifting plate 311. Both the fixed base 321 and the support base 326 are provided with limiting grooves for limiting the position of the pipe fitting. The steering driver 323 is fixedly mounted on the fixed base 321. The steering wheel 322 is rotatably mounted on the fixed base 321. There are two steering wheels 322, which are spaced apart along the feeding direction. The top of the steering wheel 322 is at a higher level than the bottom of the limiting groove.
[0047] Please see Figure 4The drive gear 324 is connected to the steering drive 323, the transmission gear 325 is coaxially connected to the steering wheel 322, and the transmission gear 325 corresponds one-to-one with the steering wheel 322. The drive gear 324 meshes with the transmission gear 325. The support wheel 327 is rotatably mounted on the support base 326, and the support wheel 327 is arranged opposite to the steering wheel 322. The horizontal plane of the top end of the support wheel 327 is coplanar with the horizontal plane of the top end of the steering wheel 322.
[0048] Please see Figure 3 The side-push positioning component 33 includes a mounting base 331, a pusher block 332, and a pusher driver 333. The mounting base 331 is fixedly mounted on the frame 10, the pusher driver 333 is fixedly mounted on the mounting base 331, and the pusher block 332 is connected to the pusher driver 333 in a transmission connection.
[0049] Please see Figure 3 The side-push positioning assembly 33 further includes a swing arm 334, an upper pressure roller 335, and a swing driver 336. The swing driver 336 is fixedly mounted on the mounting base 331. The swing arm 334 is hinged to the mounting base 331. The end of the swing arm 334 away from the mounting base 331 is connected to the swing driver 336. The upper pressure roller 335 is rotatably mounted on the swing arm 334.
[0050] Please see Figure 5 The feeding mechanism 40 includes a base frame 41, a guide rod 42, a slide block 43, a feeding clamp 44, and a feeding driver 45. The base frame 41 is fixedly mounted on the frame 10. The guide rod 42 is mounted on the base frame 41 along the feeding direction. The slide block 43 is slidably connected to the guide rod 42. The feeding clamp 44 is fixedly connected to the slide block 43. The feeding driver 45 is fixedly mounted on the base frame 41. The slide block 43 is drively connected to the feeding driver 45.
[0051] Please see Figure 5 The loading clamp 44 includes two clamping blocks 441 and two clamping drivers 442. Both clamping blocks 441 are convexly connected to the clamping drivers 442. Driven by the clamping drivers 442, the two clamping blocks 441 move towards each other to clamp the pipe fitting. Each clamping block 441 has a clamping groove on its inner side, and the clamping grooves of the two clamping blocks 441 form a clamping space adapted to the pipe fitting.
[0052] Please see Figure 6 and Figure 7The punching mechanism 50 includes a placement seat 51, a feeding assembly 52, a punching die assembly 532, and a punching assembly 54. The placement seat 51 is fixedly mounted on the frame 10 and has a receiving groove 511 adapted to the pipe fitting. The feeding assembly 52 includes a feeding seat 521, a feeding block 522, and a feeding driver 523. The feeding seat 521 is fixedly mounted on the frame 10, and the feeding driver 523 is fixedly mounted on the feeding seat 521. The feeding block 522 is connected to the feeding driver 523 in a transmission manner.
[0053] Please see Figure 6 The top material assembly 52 also includes a guide rod 524, one end of which is fixedly connected to the top material block 522, and the other end of which extends out of the top material seat 521.
[0054] Please see Figure 7 The punching die 532 assembly 53 includes a punching die base 531, a punching die 532, a fixing plate 533, a push block 534, a connecting rod 535, a push plate 536, and a push driver 537. The punching die base 531 is fixedly mounted on the frame 10. The punching die base 531 has an axially arranged slot and a through hole. The punching die 532 includes a clamping part and a die head connected to the clamping part. The clamping part has an axially arranged threaded hole. The clamping part is engaged in the slot, and a bolt passes through the through hole and engages with the threaded hole. The punching die 532 is detachably connected to the punching die base 531. The die head is provided with a punching hole. The fixing plate 533 is fixedly connected to the punching die base 531. The push driver 537 is fixedly mounted on the frame 10. The push plate 536 is drivenly connected to the push driver 537. One end of the connecting rod 535 is fixedly connected to the push plate 536. The other end of the connecting rod 535 passes through the fixing plate 533 and is fixedly connected to the push block 534. The push block 534 is axially provided with a relief groove that matches the die head.
[0055] Please see Figure 7 The punching assembly 54 includes a mounting bracket 541, a punching head 542, a punching guide rail 543, a punching slide 544, and a punching driver 545. The mounting bracket 541 is fixedly mounted on the frame 10. The punching guide rail 543 is fixedly mounted on the mounting bracket 541. The punching slide 544 is slidably connected to the punching guide rail 543. The punching driver 545 is fixedly mounted on the mounting bracket 541. The punching slide 544 is drively connected to the punching driver 545. The punching head 542 is fixedly connected to the punching slide 544.
[0056] The working principle of the pipe punching device 100 in this embodiment is as follows: During operation, the operator places the pipe in the placement groove 232. The conveying driver 24 drives the conveyor belt 23 to work, and the pipe falls into the limiting groove. The pushing driver 333 drives the pushing block 332 to push out, so as to push the pipe to a suitable position. Then, the swing driver 336 drives the swing arm 334 to swing, so as to press the upper pressure roller 335 on top of the pipe. The steering driver 323 drives the rotating wheel to rotate, so that the pipe turns around the axis until the side to be punched is facing upward. The swing driver 336 resets, the upper pressure roller 335 resets, the feeding driver 45 drives the feeding clamp 44 to move above the pipe, and the lifting driver 312... The lifting plate 311 is driven to move upward along with the shaft steering assembly 32 and the pipe fitting. The clamping driver 442 drives the two clamping blocks 441 to move towards each other to clamp the pipe fitting. The lifting driver 312 resets the lifting plate 311. The loading driver 45 drives the loading clamp 44 to move the pipe fitting to the placement seat 51 and place the pipe fitting into the receiving groove 511. The loading clamp 44 releases the pipe fitting, and the loading driver 45 resets the loading clamp 44. The ejector driver 523 drives the ejector block 522 to push the pipe fitting to fit the pipe fitting outside the mold head. The punching driver 545 drives the punching head 542 to punch a hole in the pipe fitting. After punching is completed, the pusher driver pushes out and drives the push plate 536 to push the pipe fitting out of the mold head.
[0057] The beneficial effects of this utility model are as follows: with the cooperation of the frame 10, the conveying mechanism 20, the punching mechanism 50, the pipe positioning mechanism 30 and the feeding mechanism 40, the feeding, positioning, feeding and punching steps can be completed automatically. The degree of automation is high, which effectively improves the punching quality of pipes and increases production efficiency.
[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0059] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A pipe punching device, characterized in that, include: frame; A conveying mechanism is mounted on the frame. The conveying mechanism includes a drive wheel, a driven wheel, a conveyor belt, and a conveyor driver. The drive wheel and the driven wheel are arranged opposite to each other along the conveying direction of the frame. The conveyor belt is wound between the drive wheel and the driven wheel. The conveyor driver is fixedly mounted on the frame. The drive wheel is drivenly connected to the conveyor driver. Multiple baffles are spaced apart on the conveyor belt. A placement groove for placing pipe fittings is provided between two adjacent baffles. A punching mechanism, which is mounted on the frame; A pipe fitting positioning mechanism is provided between the conveying mechanism and the punching mechanism. The pipe fitting positioning mechanism includes a lifting assembly, a shaft steering assembly, and a side-push positioning assembly. The lifting assembly includes a lifting plate and a lifting driver. The lifting driver is fixedly mounted on the frame, and the lifting plate is pulsatorically connected to the lifting driver. The shaft steering assembly is mounted on the lifting plate, and the side-push positioning assembly is mounted on the frame, with the side-push positioning assembly and the shaft steering assembly arranged adjacent to each other. as well as A feeding mechanism is used to transfer pipe fittings from a pipe fitting positioning mechanism to a punching mechanism. The feeding mechanism includes a base frame, a guide rod, a slide, a feeding clamp, and a feeding driver. The base frame is fixedly mounted on the machine frame. The guide rod is mounted on the base frame along the feeding direction. The slide is slidably connected to the guide rod. The feeding clamp is fixedly connected to the slide. The feeding driver is fixedly mounted on the base frame. The slide is drively connected to the feeding driver.
2. The pipe punching device according to claim 1, characterized in that, The shaft steering assembly includes a fixed base, a steering wheel, a steering drive, a drive gear, a transmission gear, a support base, and a support wheel. The fixed base and the support base are disposed opposite to each other on the lifting plate. Both the fixed base and the support base are provided with limiting grooves for limiting the position of the pipe fittings. The steering drive is fixedly disposed on the fixed base, and the steering wheel is rotatably disposed on the fixed base. The drive gear is drivenly connected to the steering drive, and the transmission gear is coaxially connected to the steering wheel. The support wheel is rotatably disposed on the support base.
3. The pipe punching device according to claim 2, characterized in that, The top of the steering wheel is on a horizontal plane that is higher than the bottom of the limiting groove, and the top of the support wheel is on the same horizontal plane as the top of the steering wheel.
4. The pipe punching device according to claim 3, characterized in that, The side-push positioning assembly includes a mounting base, a pusher block, and a pusher driver. The mounting base is fixedly mounted on the frame, the pusher driver is fixedly mounted on the mounting base, and the pusher block is drively connected to the pusher driver.
5. The pipe punching device according to claim 4, characterized in that, The side-push positioning assembly also includes a swing arm, an upper pressure roller, and a swing driver. The swing driver is fixedly mounted on the mounting base. The swing arm is hinged to the mounting base. The end of the swing arm away from the mounting base is connected to the swing driver. The upper pressure roller is rotatably mounted on the swing arm.
6. The pipe punching device according to claim 1, characterized in that, The punching mechanism includes a placement seat, a feeding assembly, a punching die assembly, and a drilling assembly. The placement seat is fixedly mounted on the frame and has a receiving groove adapted to the pipe fitting. The feeding assembly and the punching die assembly are respectively located at both ends of the placement seat, and the drilling assembly is correspondingly mounted to the punching die assembly.
7. The pipe punching device according to claim 6, characterized in that, The punching die assembly includes a punching die base, a punching die, a fixed plate, a push block, a connecting rod, a push plate, and a push driver. The punching die base is fixedly mounted on the frame. The punching die base has an axially arranged slot and a through hole. The punching die includes a mounting part and a die head connected to the mounting part. The mounting part has an axially arranged threaded hole. The mounting part is engaged in the slot. A bolt passes through the through hole and engages with the threaded hole. The punching die is detachably connected to the punching die base. The die head has a punching hole. The fixed plate is fixedly connected to the punching die base. The push driver is fixedly mounted on the frame. The push plate is drivenly connected to the push driver. One end of the connecting rod is fixedly connected to the push plate. The other end of the connecting rod passes through the fixed plate and is fixedly connected to the push block. The push block has an axially arranged clearance groove adapted to the die head.