An automatic metal pipe T-shaped hole-drilling equipment

Abstract

The present invention discloses an automatic metal pipe T-shaped hole punching device. The automatic metal pipe T-shaped hole punching device includes a punching mechanism. The punching mechanism includes a punching rod. The punching rod has a flat end for piercing the metal pipe. A punching sleeve for hole expansion is fixedly connected to the punching rod. A hole pulling mechanism, the hole pulling mechanism includes a hole pulling member. The hole pulling member has an expanding arc surface. A connecting groove for connecting with the flat end is formed in the hole pulling member, so that the punching mechanism can drive the hole pulling mechanism to pull the hole. For the automatic metal pipe T-shaped hole punching device provided by the present invention, after the punching mechanism finishes punching, the hole pulling mechanism can be rotated and locked, so that the punching mechanism can pull the hole pulling mechanism upward to pull the hole, enabling punching and hole pulling to be completed at one time. Compared with the prior art, there is no need to adjust the position of the metal pipe and reposition, reducing the time consumed for hole opening and hole pulling processing and improving the overall efficiency of T-shaped hole punching of the metal pipe.

Description

Technical Field

[0001] The present invention belongs to the technical field of metal pipe punching, and specifically relates to an automatic metal pipe T-shaped punching device. Background Art

[0002] In the field of metal pipe processing, T-shaped joints are widely used for connecting with other pipelines to achieve fluid diversion. Compared with traditional welded tees, the branch pipe connection structure formed by punching has a more compact structure, significantly reducing the fluid retention area, thereby improving the overall performance and efficiency of the system.

[0003] During the metal pipe punching process, first, the punching position needs to be accurately determined. Subsequently, an elliptical hole or a circular hole is opened on the metal pipe. To ensure stability during the processing, a three-jaw positioning mechanism is used to fix the metal pipe. Then, a punching hook or a special mold is used to turn the hole edge outwards to form a flanging that protrudes outside the pipe, thus completing the preliminary processing of the T-shaped joint.

[0004] However, the traditional processing flow has many inconveniences. After the punching operation is completed, it is necessary to first cancel the positioning of the metal pipe, and then move it to the punching device for reinstallation and positioning. In this process, the disassembly and reinstallation steps of the metal pipe are cumbersome, and due to the need for multiple positionings, the punching processing time is significantly extended.

[0005] To solve this problem, existing devices attempt to integrate the punching and punching mechanisms in the same device. This design can complete the punching and punching operations in sequence without disassembling the metal pipe, thereby improving the processing efficiency to a certain extent. However, there are still some defects in the actual use of this device.

[0006] Specifically, before punching, it is still necessary to use a feeding mechanism to accurately send the fixed metal pipe to the punching position for positioning. After punching, it is necessary to move the punched area to the position where the punching mechanism is located through the feeding mechanism and reposition it. During this process, the device needs to consume a certain amount of time for repositioning before punching, thus affecting the overall efficiency of the metal pipe T-shaped punching. Summary of the Invention

[0007] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide an automatic metal pipe T-shaped punching device.

[0008] To achieve the aforementioned invention purpose, the technical solutions adopted by the present invention include:

[0009] A punching mechanism, the punching mechanism includes a punching rod, the punching rod has a flat end for piercing the metal pipe, and a punching sleeve for expanding the hole is tightly connected to the punching rod;

[0010] In the present invention, punching sleeves of different sizes can be replaced according to the requirements of the punching hole diameter, so that the automatic metal pipe T-shaped punching and reaming equipment can adapt to different punching requirements.

[0011] A reaming mechanism, the reaming mechanism includes a reaming member, the reaming member has a reaming arc surface, and a connecting groove for connecting with the flat end is formed in the reaming member, so that the punching mechanism can drive the reaming mechanism to ream holes.

[0012] In the present invention, by inserting the punching mechanism into the connecting groove of the reaming mechanism and rotating to lock, after the punching is completed, the punching mechanism can drive the reaming mechanism to move upward, so that the reaming mechanism performs reaming treatment on the holes punched in the metal pipe.

[0013] In the present invention, when the punching mechanism drives the reaming member to move, the reaming arc surface and the side wall of the metal pipe are relatively extruded for reaming. By adjusting the moving position height of the reaming member by the punching mechanism, the amount of the inclined reaming arc surface extending outside the metal pipe can be adjusted, and the aperture of the reaming can be adjusted and controlled by this operation.

[0014] A heating mechanism, the heating mechanism has a heating plate for heating the reaming arc surface. When the reaming mechanism is in a working state, the heating mechanism stops heating.

[0015] In the present invention, the gravity of the reaming member itself is used as a judgment basis to determine whether heating treatment needs to be performed on the reaming arc surface. Specifically, when the reaming member stably acts on the metal pipe due to gravity, if it is necessary to further ensure the smooth progress of the reaming process and the quality of the metal pipe after processing, the reaming arc surface is heated. The function of this heating step is that it can effectively promote the release of the internal deformation stress of the metal pipe during reaming, thereby significantly reducing the risk of deformation or cracking of the metal pipe after processing.

[0016] By precisely controlling the heating temperature and time, the heating treatment in the present invention not only optimizes the mechanical properties during reaming, but also ensures the dimensional stability and structural integrity of the metal pipe after processing. This gravity-controlled heating treatment strategy not only improves the processing efficiency, but also significantly enhances the processing quality and reliability of the metal pipe.

[0017] Preferably, the reaming mechanism further includes a support rod for positioning the metal pipe sleeve. The support rod has an accommodation space for accommodating the reaming member, and the reaming member can only move vertically in the accommodation space.

[0018] Preferably, the connecting groove includes an insertion groove and a rotation port, and the flat end can rotate in the rotation port.

[0019] In the present invention, after the flat end of the punching rod completes the punching, it will continue to move vertically downward and enter the insertion slot, and the end of the punching rod cannot rotate in the insertion slot due to the limitation of its internal space. When the flat end enters the rotating mouth, the space inside the rotating mouth can support the rotation of the flat end. After the punching rod drives the flat end to rotate, the side of the flat end close to the rotating mouth will abut against the inner wall of the rotating mouth. When the punching rod moves vertically upward, the hole-pulling piece will move upward with the flat end.

[0020] Preferably, a lifting ring is integrally formed on the top of the hole-pulling member.

[0021] In the present invention, the lifting ring is used to lift the hole punched by the punching mechanism to a state of tilting toward the outside of the metal tube, so as to facilitate the subsequent hole pulling of the expanded arc surface.

[0022] Preferably, the punching sleeve comprises two sleeve plates, one of which is internally threaded with bolts, and the two sleeve plates are fastened to the punching rod by bolts.

[0023] Preferably, at least one positioning column is fixedly connected to the sleeve plate, and a plurality of positioning holes matched with the positioning column are formed on the punching rod.

[0024] Preferably, the heating mechanism further comprises a follower, and when the hole-pulling member is pressed on the follower, the heating plate is attached to the hole-expanding arc surface by its own weight.

[0025] Preferably, at least one raised strip is provided in the accommodating space, and grooves matching the number of raised strips are provided in the hole-pulling member.

[0026] Compared with the prior art, the advantages of the present invention include:

[0027] (1) The automatic metal pipe T-shaped hole punching equipment provided by the present invention has a simple structure, can automatically punch holes, and is easy to maintain;

[0028] (2) The present invention provides an automatic metal tube T-hole pulling device. After the punching mechanism punches the hole, the hole pulling mechanism can be rotated and locked, so that the punching mechanism pulls the hole pulling mechanism upward to pull the hole, so that the punching and hole pulling can be completed at one time. Compared with the prior art, there is no need to adjust the position of the metal tube and reposition it, which reduces the time consumed by the hole opening and hole pulling process, and improves the overall efficiency of the metal tube T-hole pulling;

[0029] (3) The present invention provides an automatic metal tube T-hole extraction device. The punching mechanism punching sleeve can be replaced to meet the needs of opening holes of different sizes, and the length of the expanded arc surface extending out of the metal tube can be adjusted to be suitable for the processing of holes of different calibers. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0031] Figure 1 It is the overall schematic diagram of an automatic metal pipe T-shaped hole punching device in the present invention;

[0032] Figure 2 It is the connection structure schematic diagram of the three-jaw positioning mechanism in the present invention;

[0033] Figure 3 It is the connection structure schematic diagram of the punching rod in the present invention;

[0034] Figure 4 It is the connection structure schematic diagram of the sleeve plate in the present invention;

[0035] Figure 5 It is the connection structure schematic diagram of the hole punching part in the present invention;

[0036] Figure 6 It is the connection structure schematic diagram of the heating mechanism in the present invention.

[0037] Reference numerals:

[0038] 1. Punching mechanism; 11. Sliding frame; 12. Mounting frame; 13. Cylinder; 14. Working frame; 15. Servo motor; 16. Punching rod; 17. Electric telescopic rod; 18. Speed regulating motor; 19. Grinding tool; 110. Sleeve plate; 111. Flat end; 112. Positioning column; 113. Bolt; 114. Elastic plate; 2. Hole punching mechanism; 21. Support rod; 22. Hole punching part; 23. Three-jaw positioning mechanism; 24. Moving frame; 25. Insertion groove; 26. Rotating port; 27. Jacking ring; 28. Raised strip; 29. Reaming arc surface; 3. Slide rail; 4. Heating mechanism; 41. Heating plate; 42. Auxiliary pulley; 43. Traction rope; 44. Touch plate; 45. Spring. Detailed implementation manners

[0039] In view of the deficiencies in the prior art, the inventors of this case have put forward the technical solution of the present invention through long-term research and a large number of practices. The following will further explain and illustrate the technical solution, its implementation process and principle, etc. in combination with the drawings in the embodiments of the present application and specific implementation cases.

[0040] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation of the present invention. The described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, the present invention covers any alternatives, modifications, equivalent methods and solutions made within the spirit, principle and scope of the present invention defined by the claims. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0041] In the description of the present application, terms such as "first", "second", "third" and similar words do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "a" or "one" do not denote a quantity limitation, but mean that there is at least one. Words such as "comprising" or "including" mean that the elements or objects appearing before "comprising" or "including" cover the elements or objects listed after "comprising" or "including" and their equivalents, and do not exclude other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0042] In the description of the present application, the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application. In addition, when using position terms such as both sides, outer side, upper and lower, etc., it should be understood that they are only used for convenience of understanding and description, considering that the structure may be oriented to other positions.

[0043] In the description of the present application, unless otherwise clearly defined and limited, the technical terms or scientific terms used should have the ordinary meaning understood by those of ordinary skill in the art to which the present application belongs. Terms such as "installed", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or a contact connection or an integral connection; for those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0044] The embodiments of the present invention are intended to introduce and explain the structural composition of an automatic metal tube T-shaped punching equipment and the cooperation relationship between the various component structures. Unless otherwise specified, the dimensions, materials, manufacturing processes, etc. of the various components in the automatic metal tube T-shaped punching equipment in the embodiments of the present invention can be selected according to specific circumstances, and no special limitations and explanations are made here.

[0045] Furthermore, in order to enable the public to have a better understanding of the present invention, in the following detailed description of the present invention, some specific details are described in detail. Those skilled in the art can fully understand the present invention without the description of these details. Embodiment

[0046] Please refer to Figure 1 and Figure 2 An automatic metal tube T-shaped punching equipment, including a slide rail 3.

[0047] The shape of the slide rail 3 is a loop shape and has two long guide rails and two short guide rails, and the two long guide rails are fixedly connected to each other through the short guide rails.

[0048] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 An automatic metal tube T-shaped punching equipment, including a punching mechanism 1.

[0049] Specifically, the punching mechanism 1 includes two sliding frames 11 slidably connected to the two long guide rails. The tops of the two sliding frames 11 are commonly connected to a mounting frame 12. Four cylinders 13 are fixedly connected to the middle of the mounting frame 12. The telescopic ends of the four cylinders 13 are commonly fixedly connected to a working frame 14. A servo motor 15 is fixedly connected to the working frame 14. The driving end of the servo motor 15 is fixedly connected to a punching rod 16. A flat end 111 is integrally formed at the end of the punching rod 16.

[0050] In this embodiment, by moving the telescopic end of the cylinder 13 to drive the working frame 14 to move vertically downward, the punching rod 16 can be made to press down with the flat end 111 for punching.

[0051] In this embodiment, the flat end 111 has a triangular tip, and the triangular tip is used to break through the pipe wall of the metal tube. The connection between the flat end 111 and the punching rod 16 is in a T shape.

[0052] Specifically, a punching sleeve is fixedly connected to the punching rod 16. The punching sleeve includes two sleeve plates 110. Elastic plates 114 are fixedly connected to both sides of one of the sleeve plates 110. Docking ports for inserting the elastic plates 114 are formed on both sides of the other sleeve plate 110. A plurality of bolts 113 are threadedly connected inside the sleeve plate 110 with the docking ports. Threaded blind holes corresponding to the number and adapted to the bolts 113 are formed in the elastic plates 114. Four positioning posts 112 are fixedly connected inside both sleeve plates 110. Positioning holes corresponding to the number and shape of the positioning posts 112 are formed on the punching rod 16.

[0053] In this embodiment, when it is necessary to adjust the punching diameter, the bolts 113 are rotated to screw them out of the threaded blind holes, and then two opposite forces are applied to the two sleeve plates 110 respectively to disassemble the two sleeve plates 110. Then, the two sleeve plates 110 required for punching are taken and the positioning posts 112 are inserted into the positioning holes. Then, a force is applied to the elastic plates 114 to deform them and insert them into the docking ports. Then, the bolts 113 are screwed into the threaded blind holes of the elastic plates 114, and the size adjustment of the punching sleeve can be completed.

[0054] Specifically, an electric telescopic rod 17 is fixedly connected to one side of the mounting frame 12. A flat plate is fixedly connected to the telescopic end of the electric telescopic rod 17. A speed regulating motor 18 is fixedly connected to the flat plate. A grinding tool 19 is fixedly connected to the driving end of the speed regulating motor 18.

[0055] In this embodiment, after punching and hole pulling are completed, the pulled pipe orifice is moved to directly below the grinding tool 19. The grinding tool 19 is pressed down by the movement of the telescopic end of the electric telescopic rod 17, and the speed regulating motor 18 drives the grinding tool 19 to rotate to grind the pulled pipe orifice.

[0056] Please refer to Figure 5 and Figure 6 , an automatic metal pipe T-shaped hole pulling device, including a hole pulling mechanism 2.

[0057] The hole pulling mechanism 2 includes a moving frame 24 slidably connected to two long guide rails. A three-jaw positioning mechanism 23 is fixedly connected to the top of the moving frame 24. A support rod 21 is fixedly connected to the top of the moving frame 24. The metal pipe can be sleeved on the support rod 21, and then clamped and positioned by the three-jaw positioning mechanism 23. The support rod 21 has an accommodation space. A hole pulling member 22 is slidably connected inside the accommodation space. Two protruding strips 28 are arranged inside the accommodation space. Two grooves are formed in the hole pulling member 22. The grooves and the protruding strips 28 slide relative to each other so that the hole pulling member 22 can only move vertically inside the accommodation space. A connection groove for connecting with the flat end 111 is formed in the hole pulling member 22. The connection groove includes an insertion groove 25 and a rotation port 26. The flat end 111 can rotate inside the rotation port 26. A jacking ring 27 is integrally formed at the top of the hole pulling member 22. The hole pulling member 22 has an expanded hole arc surface 29.

[0058] In this embodiment, after the punching mechanism 1 finishes punching, the telescopic end of the air cylinder 13 extends to drive the punching rod 16 to continue pressing downwards, so that the flat end 111 is inserted into the insertion slot 25 and continuously moves inside the hole pulling part 22 until it enters the rotation port 26. Then, the servo motor 15 is started to make the punching rod 16 rotate, so that the flat end 111 is stuck inside the rotation port 26. Then, the telescopic end of the air cylinder 13 contracts to lift the hole pulling part 22, and the hole pulled by the punching mechanism 1 is lifted by the jacking ring 27 to form a pipe orifice. Then, the pipe orifice is enlarged by the reaming arc surface 29, and the caliber size of the pipe orifice is controlled by adjusting the length of the part extending outside the metal pipe through the reaming arc surface 29.

[0059] In this embodiment, the design of the three-jaw positioning mechanism 23 is consistent with the commonly used clamping devices in existing hole pulling equipment in terms of structure, and all cover three core components: a power source device, an intermediate force transmission mechanism, and a clamping element.

[0060] As the power source for providing the clamping force, the power source device has various forms, and common ones include pneumatic, hydraulic, or electric devices. In this embodiment, a pneumatic device is selected as the power source, and its detailed structure is the same as that of the pneumatic device in the prior art, so it will not be elaborated here.

[0061] The intermediate force transmission mechanism plays the role of transmitting and converting the force generated by the power source device. Common forms of force transmission mechanisms include levers, wedges, gear racks, etc. In this embodiment, a lever is used as the force transmission mechanism, which can effectively transmit the force generated by the pneumatic device to the clamping element.

[0062] The clamping element is a key component that directly contacts the metal pipe and implements clamping, and its forms are also diverse. Common ones include clamping rods, pressing plates, or engaging teeth, etc. In this embodiment, a pressing plate is selected as the clamping element, and the pressing plate can directly contact the metal pipe and ensure the stability of the metal pipe during the processing by increasing the friction force or mechanical biting force.

[0063] During specific operation, the pneumatic device first generates an initial clamping force, and this force is transmitted to the pressing plate (i.e., the clamping element) through the lever, which is the intermediate force transmission mechanism. In addition, the magnitude and direction of the force transmitted to the pressing plate can be flexibly adjusted by adjusting the output of the pneumatic device or the length of the lever arm. After being acted upon by the force, the pressing plate will closely adhere to and clamp the metal pipe, thus ensuring that the metal pipe always remains in a stable state during the hole pulling process. The three-jaw positioning mechanism 23 in this embodiment realizes the stable clamping of the metal pipe through the reasonable design of the power source device, the intermediate force transmission mechanism, and the clamping element, providing a strong guarantee for the subsequent hole pulling processing.

[0064] Please refer to Figure 6 , an automatic metal pipe T-shaped hole pulling device, including a heating mechanism 4.

[0065] The heating mechanism 4 includes a placement groove opened in the accommodation space. The included angle of the groove wall of the placement groove is <90 degrees. At least one heating plate 41 is rotatably connected in the placement groove. In this embodiment, two heating plates 41 are used. An electric heating tube is provided in the heating plate 41, and the electric heating tube is heated by external power supply.

[0066] Specifically, a touch plate 44 is slidably connected in the accommodation space. A pressure sensor is provided in the touch plate 44, and a controller is provided in the support rod 21. When the pressure sensor receives pressure, the controller will control the heating plate 41 to be powered on and heated. A spring 45 is fixedly connected to the bottom of the touch plate 44. Two traction channels are provided in the support rod 21. A traction rope 43 is provided in each traction channel. One end of the traction rope 43 is fixedly connected to the touch plate 44, and the other end of the traction rope 43 is fixedly connected to the heating plate 41. A plurality of auxiliary pulleys 42 are rotatably connected in each traction channel, and the traction rope 43 is slidably connected to the auxiliary pulleys 42.

[0067] In this embodiment, when the hole punching member 22 presses on the touch plate 44, the spring 45 is deformed by force, and the traction rope 43 located at the spring 45 is loosened. Since the included angle of the groove wall of the placement groove is <90 degrees, the heating plate 41 is always in an inclined state. After the traction of the traction rope 43 is removed, one end of the heating plate 41 drives the whole to rotate by its own weight, so that the heating plate 41 covers the reaming arc surface 29 for heating.

[0068] It should be noted that the included angle of the groove wall refers to the included angle between the two side walls that the touch plate 44 can contact in a rotating manner in the placement groove. The above-mentioned heating plate 41 is always in an inclined state, which means that the heating plate 41 is inclined with reference to the horizontal plane.

[0069] In this embodiment, the touch plate 44, the spring 45, the traction rope 43 and the auxiliary pulley 42 form a driven member. When the hole punching member 22 moves upward, the elastic recovery of the spring 45 can push the touch plate 44 to move, so that the traction rope 43 is pulled by the touch plate 44, and the other end of the traction rope 43 pulls the heating plate 41 to rotate and fit the inner wall of the placement groove, thereby preventing the movement of the hole punching member 22 from being affected.

[0070] In this embodiment, the specific steps of hole punching are as follows:

[0071] S1. Slip the metal pipe over the support rod 21, and then clamp and position the metal pipe with the three-jaw positioning mechanism 23. Before punching, turn the bolt 113 to screw it out of the threaded blind hole, then apply two opposite forces to the two sleeve plates 110 respectively to disassemble the two sleeve plates 110. After that, take the two sleeve plates 110 required for punching, insert the positioning posts 112 into the positioning holes, then apply force to the elastic plate 114 to deform it and insert it into the docking port. Then screw the bolt 113 into the threaded blind hole of the elastic plate 114 to complete the size adjustment of the punching sleeve. Moreover, the hole-pulling member 22 presses on the touch plate 44, the spring 45 is in a deformed state, and the traction rope 43 located in the spring 45 is loosened. Since the included angle between the groove walls of the placement groove of the heating plate 41 is less than 90 degrees, the heating plate 41 itself is always in an inclined state. After the traction of the traction rope 43 is removed, one end of the heating plate 41 drives its whole body to rotate by its own weight so that the heating plate 41 covers the reaming arc surface 29 for heating.

[0072] S2. Move the traction working frame 14 vertically downward by the telescopic end of the cylinder 13, so that the punching rod 16 presses down with the flat end 111 for automatic punching.

[0073] S3. After punching, the telescopic end of the cylinder 13 extends to drive the punching rod 16 to continue pressing down and moving, so that the flat end 111 is inserted into the insertion groove 25 and continues to move into the inside of the hole-pulling member 22 until it enters the inside of the rotation port 26. Start the servo motor 15 to make the punching rod 16 rotate, so that the flat end 111 is locked inside the rotation port 26. Then the telescopic end of the cylinder 13 contracts to lift the hole-pulling member 22, and the hole pulled by the punching mechanism 1 is jacked up by the jacking ring 27 to form a pipe orifice, and then the pipe orifice is enlarged by the reaming arc surface 29 to complete the automatic hole-pulling operation.

[0074] S4. After punching and hole-pulling are completed, move the pulled pipe orifice to directly below the grinding tool 19, and drive the grinding tool 19 to press down by the telescopic end of the electric telescopic rod 17, and drive the grinding tool 19 to rotate by the speed-regulating motor 18 to grind the pulled pipe orifice.

[0075] It should be understood that the above embodiments are only used to illustrate the technical concept and features of the present invention. Its purpose is to enable those familiar with this technology to understand the content of the present invention and implement it accordingly. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can still be made. All equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. An automatic metal pipe T-shaped hole punching device, characterized in that, Comprising: A punching mechanism (1), the punching mechanism (1) includes a punching rod (16), the punching rod (16) has a flat end (111) for piercing a metal tube, and a punching sleeve for reaming is fixedly connected to the punching rod (16); A hole pulling mechanism (2), the hole pulling mechanism (2) includes a hole pulling member (22), the hole pulling member (22) has a reaming arc surface (29), and a connecting groove for connecting with the flat end (111) is formed in the hole pulling member (22), so that the punching mechanism (1) can drive the hole pulling mechanism (2) to pull the hole; A heating mechanism (4), the heating mechanism (4) has a heating plate (41) for heating the reaming arc surface (29), and when the hole pulling mechanism (2) is in a working state, the heating mechanism (4) stops heating; The punching sleeve includes two sleeve plates (110), one of the sleeve plates (110) is internally threaded with a bolt (113), and the two sleeve plates (110) are fixedly connected to the punching rod (16) through the bolt (113); At least one positioning post (112) is fixedly connected to the sleeve plate (110), and a plurality of positioning holes adapted to the positioning post (112) are formed in the punching rod (16); The heating mechanism (4) further includes a driven member, when the hole pulling member (22) presses on the driven member, the heating plate (41) fits on the reaming arc surface (29) by its own weight; The hole pulling mechanism (2) further includes a support rod (21) for positioning the metal tube, the support rod (21) has an accommodating space for accommodating the hole pulling member (22), and the hole pulling member (22) can only move vertically in the accommodating space; A touch plate (44) is arranged in the heating mechanism (4), a pressure sensor is arranged in the touch plate (44), a controller is arranged in the support rod (21), when the pressure sensor receives pressure, the controller controls the heating plate (41) to be energized for heating, a spring (45) is fixedly connected to the bottom of the touch plate (44), two traction channels are arranged in the support rod (21), a traction rope (43) is arranged in each traction channel, one end of the traction rope (43) is fixedly connected to the touch plate (44), the other end of the traction rope (43) is fixedly connected to the heating plate (41), and a plurality of auxiliary pulleys (42) are rotatably connected in each traction channel, and the traction rope (43) is slidably connected to the auxiliary pulley (42); When the hole pulling member (22) presses on the touch plate (44), the spring (45) deforms under force, and the traction rope (43) at the spring (45) is loosened, the heating plate (41) is in an inclined state, when the traction rope (43) is loosened, one end of the heating plate (41) drives its whole body to rotate by its own weight, so that the heating plate (41) covers the reaming arc surface (29) for heating; The follower is composed of a touch plate (44), a spring (45), a traction rope (43) and a guide pulley (42). When the hole punching member (22) moves upward, the elastic restoration of the spring (45) can push the touch plate (44) to move, so that the traction rope (43) is pulled by the touch plate (44), and thus the other end of the traction rope (43) pulls the heating plate (41) to rotate and fit against the inner wall of the placement groove.

2. An automatic metal tube T-shaped hole punching device according to claim 1, characterized in that: The connecting groove includes an insertion groove (25) and a rotation opening (26), and the flat end (111) can rotate within the rotation opening (26).

3. An automatic metal pipe T-shaped punching equipment according to claim 1, characterized in that: A jacking ring (27) is integrally formed at the top of the hole punching member (22).

4. An automatic metal pipe T-shaped hole punching device according to claim 1, characterized in that: At least one raised strip (28) is provided in the accommodating space, and grooves matching the number of the raised strips (28) are formed in the hole punching member (22).

Images