Single-tube punching and bending integrated machine

Abstract

The present application relates to a kind of single pipe punching bending integrated machine, and the single pipe punching bending integrated machine is included in the punching mechanism, the punching mechanism includes the side punching die group for the axial arbitrary depth side wall of the pipe fixed by clamping is opened, when the side punching die group is punched to the side wall of the pipe side wall, the side punching die group is rigidly supported in the side wall of the pipe punching site, by improving side punching die group, utilize the side punch needle to penetrate into the inside of pipe and rely on resistance extrusion, open expansion assembly, form umbrella rib skeleton rigid support, then by pipe punch, the proximal side of the pipe supported by expansion assembly is punched, after punching is completed, the distal side is punched by pipe punch, and the distal side is punched by the guide sleeve of punch needle, so that the pipe punch is rigidly supported when being punched on both sides, avoid the problem that the punching site is concave or convex, solve the generation of pipe punching site burr, improve the machining assembly precision of pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of fully automatic processing equipment for metal pipe fittings, and in particular to a single-tube punching and bending integrated machine. Background Art

[0002] Pipe punching and bending are common processes in metalworking. Pipe punching typically involves using a punch press and corresponding dies to create holes in the tube through impact. This method is highly efficient and suitable for mass production, but the dies are expensive and difficult to produce for complex, high-precision holes. Furthermore, the use of impact to punch holes in the tube can easily cause the tube wall to sag inward at the punched area, forming burrs inside the tube. This can reduce assembly precision when the punched area is used for assembly.

[0003] The existing punching processing method for this type of round tube, in order to ensure assembly accuracy and avoid the punching part from being concave and forming burrs, mostly adopts an internal support processing method, that is, a set of hole core rods are inserted into the inside of the round tube. The diameter of the hole core rods is almost the same as the inner diameter of the round tube. The support of the hole core rods is used to offset the extrusion force caused by punching.

[0004] However, when using a core rod as an aid, the core rod needs to be inserted into the round tube, and the tube penetration accuracy is required to be high. At the same time, the core rod and the punch need to have high matching accuracy. Once the punch is not installed correctly, the punching will be off-center.

[0005] For example, a punching machine disclosed in the Chinese patent application number 201610422707.0 includes a machine platform, a locking mechanism located on the machine platform, two punching mechanisms, the punching mechanism includes a mounting frame, a driving member located on the mounting frame and a punching die, the punching die includes a supporting assembly, an adjustable punch assembly located above the supporting assembly and a waste discharge cylinder, the adjustable punch assembly includes a large punching core rod pressing block, a fixing plate located below the large punching core rod pressing block, and a fixing plate installed on the fixing plate. A large punching mandrel mounting plate on the bottom of the fixed plate, a large punching mandrel installed in the large punching mandrel mounting plate, an adjusting plate cylinder is also provided on the fixed plate, the adjusting plate cylinder is connected to the adjusting plate, a small punching mandrel pressing block is also provided at the bottom of the large punching mandrel pressing block, a small punching mandrel mounting plate is also provided on the top surface of the large punching mandrel mounting plate, a small punching mandrel is provided in the small punching mandrel mounting plate, and the small punching mandrel is located in the large punching mandrel. This technical solution adopts large and small punching mandrels, and the matching precision is extremely high.

[0006] Therefore, a technical solution for punching support processing that can replace the hole core rod structure is continued. Summary of the Invention

[0007] In response to the above problems, the present invention provides a single-tube punching and bending integrated machine, which improves the side punching module and uses the side punching needle to penetrate the interior of the round tube and rely on resistance and extrusion to open the expansion component to form an umbrella-shaped skeleton rigid support. The near side of the round tube supported by the expansion component is then punched through the punching pipe. After the punching is completed, the punching pipe is rigidly supported by the punching needle guide sleeve when punching the far side, so that the punching pipe has rigid support when punching on both sides, avoiding the problem of concave or convex punching parts, solving the problem of burrs on the punching parts of the round tube, and improving the processing and assembly accuracy of the round tube.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A single tube punching and bending machine, comprising:

[0010] The punching mechanism includes a side punching module for opening holes in the axial side wall of a clamped and fixed circular tube at any depth. When the side punching module punches the side wall of the circular tube, the side punching module rigidly supports the side wall of the circular tube at the punching position.

[0011] As an improvement, the side punching module includes side punching needles and punching tubes arranged on both sides of the circular tube, and the ends of the side punching needles are provided with expansion components;

[0012] The side punch needle passes through the annularly covered punch needle guide sleeve to punch the proximal side of the circular tube, and the side punch needle punches the hole before the punch tube. After the side punch needle penetrates the circular tube, the side punch needle rests on the inner side wall of the distal side of the circular tube, and the expansion assembly opens to rigidly support the inner side wall of the circular tube.

[0013] The open end of the punch tube is configured in a blade shape, and the punch tube punches the side wall of the circular tube rigidly supported by the expansion assembly. After punching, the side punch needle penetrates into the punch tube, and the punch tube simultaneously punches the side wall on the far side of the circular tube, and the punch needle guide sleeve rigidly supports the punch tube.

[0014] As an improvement, the expansion assembly includes a needle and a plurality of support heads;

[0015] The needle head is elastically and telescopically arranged at the punching end of the side punch needle;

[0016] The support head is rotatably and swingably mounted on the needle head. The support head is hinged to the side punch needle via a hinged arm. When the needle head contracts, the support head changes its angle with the hinged arm, and the support head rotates and swings out to form an umbrella-shaped skeleton structure.

[0017] As an improvement, the punching mechanism also includes an end punching module for punching the end of the round tube. The end punching module includes an upper punch needle and a positioning core rod. The upper punch needle punches the upper side wall of the round tube downward, and the positioning core rod extends into the round tube for rigid support.

[0018] As an improvement, the punching mechanism further comprises a clamping module for clamping and fixing the round tube, wherein the clamping module comprises two groups of clamping blocks that move in opposite directions, and the clamping blocks are closed to clamp and fix the round tube.

[0019] As improvements, it also includes:

[0020] Automatic feeding mechanism, which includes a material sorting module and a feeding module;

[0021] The material sorting module outputs the horizontally placed round tubes one by one to the loading and clamping station;

[0022] The feeding module grabs the round tube located at the feeding and clamping station and transfers it to the punching mechanism.

[0023] As an improvement, the material sorting module includes a material bin and a material sorting component;

[0024] The silo stores a plurality of horizontal round tubes;

[0025] The material sorting assembly includes an L-shaped material channel, a positioning plate and a lifting block. The L-shaped material channel is connected to the material bin. The positioning plate is arranged at the outlet of the L-shaped material channel. The positioning plate is stepped to provide the loading and clamping station and the positioning station. The positioning station is located above the loading and clamping station. The lifting block is arranged at the positioning station. The lifting block pushes up the round tube located at the positioning station to make the round tube roll down to the loading and clamping station.

[0026] As an improvement, the feeding module includes a linear slide assembly, a lifting assembly and a material grabbing claw;

[0027] The linear slide assembly connects the positioning station and the punching mechanism;

[0028] The lifting assembly is installed on the slide of the linear slide assembly, and the lifting assembly drives the grabbing claw to lift and lower to grab the round tube.

[0029] As improvements, it also includes:

[0030] A pipe bending mechanism, which is arranged adjacent to the punching mechanism, and bends the perforated round pipe, and includes a pipe bending module and a material clamping module;

[0031] The pipe bending module includes a first pipe bending module and a second pipe bending module respectively arranged on both sides of the bending portion of the round pipe, the first pipe bending module rolling the round pipe to form a bend, and the second pipe bending module covering the round pipe to define the bending extension position of the round pipe;

[0032] The clamping module is arranged at the other end of the round tube relative to the bending tube module, and the clamping module clamps and positions the round tube.

[0033] As an improvement, the pipe bending mechanism further includes a blanking module and an output module;

[0034] The blanking module is arranged beside the clamping module, and the blanking module clamps the bent round tube and flips it to the output module;

[0035] The output module carries the bent round tube for horizontal output.

[0036] The beneficial effects of the present invention are:

[0037] (1) The present invention improves the side punching module, uses the side punch needle to penetrate the inside of the round tube and rely on the resistance and extrusion to open the expansion component to form an umbrella-shaped skeleton rigid support, and then punches the near side of the round tube supported by the expansion component through the punching tube. After the punching is completed, the punching tube is rigidly supported by the punch needle guide sleeve when punching the far side, so that the punching tube has rigid support when punching on both sides, avoiding the problem of concave or convex punching part, solving the problem of burr generation at the punching part of the round tube, and improving the processing and assembly accuracy of the round tube;

[0038] (2) The present invention uses a side punch needle inserted into the punching tube as a guide to ensure the accuracy of punching holes on both sides of the punching tube across the diameter of the circular tube. The side punch needle takes out the waste materials generated by punching holes on both sides of the punching tube at one time, thus avoiding the occurrence of material blockage inside the punching tube and ensuring the continuity of the punching work.

[0039] (3) The present invention realizes fully automatic loading of round tubes by setting up an automatic loading mechanism, and the L-shaped material channel of the automatic loading mechanism well ensures that only one group of round tubes is output at a time, and the subsequent round tubes will not interfere with the output of the previous round tubes. It only needs to rely on the limit of the positioning station, and no additional limit components are required. The entire structure is simple, efficient and stable;

[0040] (4) The present invention can perform high-precision punching and pipe bending online at the same time. The round pipe is directly bent into the designed angle and then output. There is no need for manual post-processing. The whole machine has a high degree of automation and the processing steps are closely connected.

[0041] In summary, the present invention has the advantages of high degree of automation, high processing precision, and close connection of processing steps, and is particularly suitable for the technical field of fully automatic punching and bending processing of metal pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 Schematic diagram of the three-dimensional structure of the present invention Figure 1 ;

[0043] Figure 2 Schematic diagram of the three-dimensional structure of the present invention Figure 2 ;

[0044] Figure 3 It is a three-dimensional schematic diagram of the punching mechanism of the present invention;

[0045] Figure 4 This is a schematic diagram of the cross-sectional structure of the side punching needle of the present invention;

[0046] Figure 5 This is a schematic side view of the side punching needle structure of the present invention;

[0047] Figure 6 This is a schematic diagram of the three-dimensional structure of the side punch needle of the present invention;

[0048] Figure 7 This is a schematic diagram of the cross-sectional structure of the side punching needle of the present invention;

[0049] Figure 8 Schematic diagram of the three-dimensional structure of the end punching module of the present invention Figure 1 ;

[0050] Figure 9 Schematic diagram of the three-dimensional structure of the end punching module of the present invention Figure 2 ;

[0051] Figure 10 This is a schematic diagram of the three-dimensional structure of the clamping module of the present invention;

[0052] Figure 11 Schematic diagram of the three-dimensional structure of the side punching module of the present invention Figure 3 ;

[0053] Figure 12 This is a schematic diagram of the three-dimensional structure of the automatic feeding mechanism of the present invention;

[0054] Figure 13 This is a schematic diagram of the three-dimensional structure of the feeding module of the present invention;

[0055] Figure 14 This is a schematic diagram of the three-dimensional structure of the pipe bending module of the present invention;

[0056] Figure 15 This is a schematic diagram of the local structure of the pipe bending module of the present invention;

[0057] Figure 16 This is a schematic diagram of the three-dimensional structure of the clamping module of the present invention;

[0058] Figure 17This is a schematic diagram of the three-dimensional structure of the blanking module of the present invention;

[0059] Figure 18 It is a schematic diagram of the three-dimensional structure of the output module of the present invention.

[0060] Numbers in the figure: punching mechanism I, side punching module 1, round tube 00, side punching needle 11, punching tube 12, leakage hole 121, expansion component 13, punching needle guide sleeve 14, needle 131, head 1311, limiting part 1312, shaft 1313, support head 132, articulated arm 133, mounting groove 001, step 002, spring groove 003, threaded end cap 004, spring 005, end punching module 2, upper punching needle 21, positioning core rod 22, connecting block 221, driving cylinder 23, punching needle guide block 24, limiting hole 25, clamping module 3, clamping block 31, groove 311, inclined surface 312, telescopic cylinder 32, automatic feeding mechanism II, material sorting module 4, material sorting module 4, silo 41, filter rod 411, material sorting component 42, L-shaped material channel 421, positioning plate 422, lifting block 423, sensor 424, whole material cylinder 425, lifting cylinder 426, feeding and clamping station 01, positioning station 02, feeding module 5, linear slide assembly 51, slide 511, ball screw 512, drive motor 513, lifting assembly 52, grabbing clamp 53, bending mechanism III, bending module 6, first bending module 61, rolling wheel 611, bending guide module 612, second bending module 62, fixing block 621, bending pressure module 622, clamping module 7, clamping seat 71, unloading module 8, pneumatic clamping claw 81, servo reduction motor group 82, swing arm 83, output module 9, sprocket module 91, sprocket servo motor 92, loading plate 93. DETAILED DESCRIPTION

[0061] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0062] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 understood as limiting the present invention.

[0063] 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 the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0064] Example 1:

[0065] like Figures 1-11 As shown, a single tube punching and bending machine includes:

[0066] Punching mechanism I, the punching mechanism I includes a side punching module 1 for opening holes in the axial side wall of the clamped and fixed circular tube 00 at any depth. When the side punching module 1 punches the side wall of the circular tube 00, the side punching module 1 rigidly supports the side wall of the circular tube 00 at the punching position.

[0067] Specifically, the side punching module 1 includes a side punching needle 11 and a punching tube 12 arranged on both sides of the round tube 00, and an expansion component 13 is provided at the end of the side punching needle 11. The side punching needle 11 and the punching tube 12 are respectively driven by the cylinder and the slide module to move to complete the punching process;

[0068] During the punching process, the side punch needle 11 passes through the circumferentially covered punch needle guide sleeve 14 to punch the proximal side of the circular tube 00 (the diameter of the hole punched by the side punch needle 11 is smaller than the diameter of the processing hole required by the design), and the side punch needle 11 punches before the punch tube 12. After the side punch needle 11 penetrates the circular tube 00, the side punch needle 11 abuts against the inner side wall of the distal side of the circular tube 00, and the expansion assembly 13 opens to rigidly support the inner side wall of the circular tube 00;

[0069] The expansion assembly 13 includes a needle 131 and a plurality of support heads 132;

[0070] The needle head 131 is elastically and telescopically arranged at the punching end of the side punch needle 11;

[0071] The support head 132 is rotatably mounted on the needle head 131. The support head 132 is hinged to the side punch needle 11 via a hinge arm 133. When the needle head 131 contracts, the support head 132 changes its angle with the hinge arm 133, and the support head 132 rotates and swings out to form an umbrella-like skeleton structure.

[0072] The opening process of the expansion assembly 13 is as follows: when the side punch needle 11 punches the proximal side of the circular tube 00 for the first time (the proximal side is based on the side punch needle position), the expansion assembly 13 cannot be opened due to the circumferential covering limit of the punch needle guide sleeve 14. The needle head 131 of the side punch needle 11 is in direct rigid contact with the proximal wall and penetrates into the circular tube 00. After the side punch needle 11 penetrates into the circular tube 00, the expansion assembly 13 loses the circumferential covering limit of the punch needle guide sleeve 14. When the side punch needle 11 reaches the distal inner wall of the circular tube 00, the needle head 131 has elastic expansion and contraction properties. Under the elastic contraction of the needle head 131, the support head 132 changes the angle with the hinged arm 133, and the support head 132 rotates and swings to form an umbrella-shaped skeleton structure supported on the inner wall of the circular tube 00, that is, the inside of the proximal tube wall based on the punch tube 12.

[0073] It should be specifically explained here that a hollow mounting groove 001 is provided at the end of the side punch needle 11, a step 002 is provided inside the mounting groove 001, a spring groove 003 is provided below the step 002, the open end of the mounting groove 001 is threaded and is installed with a threaded end cover 004, and the needle head 131 is composed of a head 1311 and a limiting part 1312, the head 1311 and the limiting part 1312 are threadedly connected by an axis 1313, and the limiting part 1312 is arranged in the mounting groove 001 in a round cake shape, the spring 005 is installed in the spring groove 003, just below the limiting part 1312, and the threaded end cover 004 has a hole for the axis 1313 to pass through, when the needle head 131 contacts and contracts with the inner wall of the circular tube 00, the limiting part 1312 rests on the step 002, and the spring 005 is compressed in the spring groove 003, thereby realizing the rigid support of the expansion component 13.

[0074] The open end of the punch tube 12 is blade-shaped, and the punch tube 12 first punches the proximal wall of the circular tube 00 rigidly supported by the expansion assembly 13. Since the inner diameter of the punch tube 12 is larger than the diameter of the side punch needle 11, after completing the punching of the proximal wall, the needle head 131 loses its limit and directly pops out and resets, which allows the side punch needle 11 to be directly inserted into the punch tube 12, and then the punch tube 12 continues to extend to punch the distal side wall of the circular tube 00 simultaneously, and the distal wall of the circular tube 00 is just wrapped by the arc edge of the punch needle guide sleeve 14 to form a rigid support, which ensures that when the punch tube 12 punches the circular tube 00 twice, there is rigid support and it will not be concave or convex, thereby avoiding the generation of burrs.

[0075] It is further explained that when the punching tube 12 punches the far side wall of the round tube 00, the side punching needle 11 also guides the punching tube 12 to ensure the accuracy of punching on both sides, while also strengthening the strength of the punching tube 12.

[0076] It is worth emphasizing that, in addition to the inner diameter of the punching tube 12 being larger than the diameter of the side punching needle 11, the inner diameter of the punching tube 12 is smaller than the support range after the expansion assembly 13 is opened, and after the punching tube 12 punches out the hole on the proximal wall, the needle head 131 of the expansion assembly 13 loses its limit and extends under the action of the spring 005, pushing the waste generated by the proximal punching to the leakage hole 121 opened on the punching tube 12 for output, and after the punching tube 12 completes the hole in the distal wall, the punching tube 12 and the side punching needle 11 are synchronously reversed and recovered, and the side punching needle 11 brings out the waste in the distal hole in the punching tube 12, so that no waste remains in the punching tube 12.

[0077] It should also be emphasized that the punching mechanism I also includes an end punching module 2 for punching the end of the circular tube 00, and the end punching module 2 includes an upper punching needle 21 and a positioning core rod 22. The upper punching needle 21 punches the upper side wall of the circular tube 00 downward, and the positioning core rod 22 extends into the circular tube 00 for rigid support. The upper punching needle 21 is installed on the mounting seat, and one end of the upper punching needle 21 is connected to the driving cylinder 23. The driving cylinder 23 drives the upper punching needle 21 to move up and down. The upper punching needle 21 can pierce the upper side wall of the circular tube 00 downward at an extremely stable and efficient speed to complete the punching process of the circular tube 00. 1 is provided with a punch needle guide block 24 directly below, the upper punch needle 21 is provided on the punch needle guide block 24, and a limiting hole 25 is provided on the punch needle guide block 24 to accommodate the circular tube 00. The positioning core rod 22 is provided in a cylindrical shape, and the positioning core rod 22 is installed on the mounting seat through the connecting block 221. The positioning core rod 22 is fixedly connected to the connecting block 221. When the cylindrical positioning core rod 22 contacts the inner wall of the circular tube 00, a relatively uniform force distribution can be achieved. In the process of providing rigid support for the circular tube 00, local stress concentration that causes damage to the inner wall of the circular tube 00 is avoided to the greatest extent. One end of the circular tube 00 is set in conflict with the connecting block 221;

[0078] In actual operation, the positioning core rod 22 is first extended into the interior of the round tube 00 to ensure the stability of the round tube. Then, the upper punch needle 21 moves downward to punch the upper side wall of the round tube. Due to the supporting effect of the positioning core rod 22, the round tube will not be deformed during the punching process, thereby ensuring the quality and accuracy of the punching.

[0079] Furthermore, the punching mechanism 1 further includes a clamping module 3 for clamping and fixing the circular tube 00. The clamping module 3 includes two groups of clamping blocks 31 that move in opposite directions. The clamping blocks 31 are closed to clamp and fix the circular tube 00. The clamping blocks 31 are installed at the output end of the telescopic cylinder 32. The telescopic cylinder 32 drives the clamping blocks 31 to move horizontally. The inner surface of the clamping blocks 31 that contacts the circular tube 00 is provided with a groove 311. The groove 311 is arranged in an arc shape. When the two groups of clamping blocks 31 contact each other, the clamping blocks 31 and the outer wall of the circular tube 00 are tightly fitted, which greatly improves the stability of the clamping.

[0080] When the round tube 00 is transported to the working area of ​​the clamping module 3, the telescopic cylinders 32 on both sides will synchronously drive the two groups of clamping blocks 31 to move in opposite directions toward the central axis of the round tube 00 according to the preset control instructions. As the clamping blocks 31 gradually approach the round tube 00, their arc-shaped grooves 311 contact the outer wall of the round tube 00 and gradually apply pressure. In this process, due to the opposing forces of the two groups of clamping blocks 31, the round tube 00 is evenly and firmly clamped in the middle. By reasonably adjusting the output pressure of the telescopic cylinder 32, the clamping force of the clamping blocks 31 on the round tube 00 can be accurately controlled. This force can not only ensure that the round tube 00 will not be displaced, shake or other unstable phenomena due to the impact of the punching force during the punching process, but also avoid damage such as indentation and deformation on the surface of the round tube 00 due to excessive clamping force.

[0081] It should be noted that a slope 312 is provided at the groove 311. When the clamping block 31 begins to approach the round tube 00, the slope 312 first contacts the outer wall of the round tube 00. The slope 312 plays a dual role of guidance and calibration in this process. It uses its own inclination angle to gradually correct the slight position deviation of the round tube 00 in the horizontal and vertical directions, so that the round tube 00 can slide smoothly and accurately into the predetermined position of the groove 311 along the guiding direction of the slope 312.

[0082] Example 2:

[0083] The differences between Example 2 and Example 1 described with reference to Example 1 are as follows:

[0084] like Figure 12 and Figure 13 As shown, a single tube punching and bending integrated machine also includes an automatic feeding mechanism II, which includes a material sorting module 4 and a feeding module 5;

[0085] The material sorting module 4 outputs the horizontally placed round tubes 00 one by one to the loading and clamping station 01;

[0086] The feeding module 5 grabs the round tube 00 located at the feeding and clamping station 01 and transfers it to the punching mechanism I.

[0087] Furthermore, the material sorting module 4 includes a material bin 41 and a material sorting component 42;

[0088] The silo 41 stores a number of horizontal round tubes 00. The silo 41 is tilted so that the round tubes 00 can naturally and slowly roll towards the material sorting assembly 42 connected to the silo 41 under the action of their own gravity. A filter rod 411 is provided at the output end of the silo 41.

[0089] The material sorting component 42 includes an L-shaped material channel 421, a positioning plate 422 and a lifting block 423. The L-shaped material channel 421 is connected to the material bin 41. When the round tube 00 rolls from the material bin 41 to the L-shaped material channel 421, the L-shaped structural design can guide the round tube 00 to change its movement direction so that it is transported along a specific L-shaped path. The positioning plate 422 is arranged at the outlet of the L-shaped material channel 421. The positioning plate 422 is stepped with the loading and clamping station 01 and the positioning station 02. The positioning station 02 is located above the loading and clamping station 01. The loading and clamping station 01 and the positioning station 02 are both hook-shaped, which can well adapt to the shape of the round tube and position the round tube.

[0090] The lifting block 423 is set at the positioning station 02. The lifting block 423 is moved in the vertical direction by the lifting cylinder 426. The lifting block 423 pushes up the round tube 00 located at the positioning station 02, causing the round tube 00 to roll down to the loading and clamping station 01.

[0091] Among them, sensors 424 are installed above the L-shaped material channel 421 and at the loading and clamping station 01. When the round tube 00 rolls from the silo 41 into the L-shaped material channel 421, the sensor 424 senses the presence of the round tube 00 and quickly transmits a signal to the control system, feeding back that the round tube 00 has successfully entered the L-shaped material channel 421, providing a basis for starting subsequent processes;

[0092] When the round tube 00 processed by the material sorting component 42 is lifted by the lifting block 423 at the positioning station 02, so that the round tube 00 rolls along the slope of the positioning plate 422 to the loading and clamping station 01, the sensor 424 can capture the existence of the round tube 00, and then send a grabbing instruction to the subsequent loading module 5, prompting the loading module 5 to respond quickly, accurately grab the round tube 00 and transfer it to the punching mechanism I.

[0093] Furthermore, a material cylinder 425 is provided on both sides of the L-shaped material channel 421 and the loading and clamping station 01. The two groups of material cylinders 425 are symmetrically arranged. When the round tube 00 rolls along the inclined surface of the silo 41 into the L-shaped material channel 421, since position deviation or unstable posture may occur during the rolling process, the material cylinder 425 will be extended and retracted along the axial direction of the round tube 00 to push the round tube 00 to the center position of the L-shaped material channel 421, ensuring that the round tube 00 always maintains the correct position during the transportation process, paving the way for the subsequent precise entry into the positioning station 02;

[0094] When the lifting block 423 pushes the round tube 00 down from the positioning station 02 and makes it roll to the loading and clamping station 01, due to certain uncertainties in the rolling process, the round tube 00 may not be accurately located in the ideal position of the loading and clamping station 01. At this time, the whole-material cylinders 425 on both sides of the loading and clamping station 01 operate synchronously to adjust the position of the round tube 00 from both sides of the station. They accurately push the round tube 00 to the preset position to ensure that the position accuracy of the round tube 00 meets the grabbing requirements of the loading module 5.

[0095] Furthermore, the feeding module 5 includes a linear slide assembly 51, a lifting assembly 52 and a material grabbing claw 53;

[0096] The linear slide assembly 51 connects the positioning station 02 and the punching mechanism 1. The linear slide assembly 51 includes a slide 511, a ball screw 512 and a drive motor 513. The slide 511 serves as a direct carrier for the pipe to be processed, ensuring that the pipe always maintains a stable posture during the transfer process without offset or shaking. The ball screw 512 is a key transmission component for realizing the linear motion of the slide 511. The ball screw 512 efficiently and accurately converts the rotational motion output by the drive motor 513 into the linear motion of the slide 511. This transmission method not only greatly improves the transmission efficiency, but also significantly reduces the friction, making the movement of the slide 511 more stable and accurate, and can meet the strict requirements on the position accuracy of the pipe transfer;

[0097] The lifting component 52 is installed on the slide 511 of the linear slide component 51. The lifting component 52 drives the grabbing clamp 53 to lift and grasp the round tube 00. The lifting component 52 is preferably a cylinder, and the grabbing clamp 53 is preferably a two-finger pneumatic clamp.

[0098] It should be noted here that there are two groups of lifting components 52 and grabbing claws 53, one group travels back and forth between the loading and clamping station 01 and the punching mechanism I, and the other group travels back and forth between the punching mechanism I and the bending mechanism III.

[0099] Example 3:

[0100] The differences between Example 3 and Example 1 described with reference to Example 1 are as follows:

[0101] like Figures 14-18 As shown, the present invention further includes a pipe bending mechanism III, which is arranged adjacent to the punching mechanism I. The pipe bending mechanism III performs pipe bending processing on the punched round tube 00, and the pipe bending mechanism III includes a pipe bending module 6 and a clamping module 7;

[0102] The pipe bending module 6 includes a first pipe bending module 61 and a second pipe bending module 62 respectively provided on both sides of the bending portion of the round pipe 00. The first pipe bending module 61 rolls the round pipe 00 to form a bend, and the second pipe bending module 62 covers the round pipe 00 to define the bending extension position of the round pipe 00.

[0103] The clamping module 7 is arranged at the other end of the round tube 00 relative to the bending module 6, and the clamping module 7 clamps and positions the round tube 00.

[0104] It should be noted that the first pipe bending module 61 includes a rolling wheel 611 driven to rotate by a servo motor, and a pipe bending guide module 612 driven by a cylinder. The pipe bending guide module 612 is provided with a pipe bending groove adapted to the pipe bending angle, and the rolling wheel 611 rolls the round pipe so that the round pipe is bent to the corresponding angle, and the rolling wheel 611 is driven by the cylinder to move and adjust along the axial direction of the round pipe 00.

[0105] The second bending module 62 includes a fixed block 621 with a semicircular positioning groove. A semi-cylindrical bending pressing module 622 is provided below the fixed block 621. The bending pressing module 622 cooperates with the fixed block 621 to limit the bending angle and bending extension of the first bending module 61.

[0106] The clamping module 7 includes two sets of clamping seats 71 arranged opposite each other in the upper and lower directions. The clamping seats 71 are respectively provided with opposite semicircular grooves, which are just adapted to the round tube. The clamping seats 71 are also moved and closed by the corresponding cylinders and slide rail modules to clamp the round tube.

[0107] In addition, the pipe bending mechanism III also includes a blanking module 8 and an output module 9;

[0108] The blanking module 8 is arranged beside the clamping module 7, and the blanking module 8 clamps the bent round tube 00 and flips it to the output module 9;

[0109] The output module 9 carries the bent round tube 00 for horizontal output.

[0110] The blanking module 8 consists of a pneumatic clamping claw 81, a servo reduction motor group 82 and a swing arm 83. After the pneumatic clamping claw 81 clamps the round tube, the servo reduction motor group 82 drives the swing arm 83 to rotate about 90°, and the round tube 00 bent on the bending mechanism III is transported to the output module 9.

[0111] The output module 9 is composed of a sprocket module 91, a sprocket servo motor 92, and a loading plate 93. The sprocket servo motor 92 drives the chain in the sprocket module 91 to rotate, and the loading plate 93 is installed on the chain to rotate the chain. The two groups of loading plates 93 are located at the two ends of the round tube 00 respectively, and the round tube 00 is output through the rotation of the loading plate 93.

[0112] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A single tube punching and bending machine, characterized in that: include: A punching mechanism (I), the punching mechanism (I) comprising a side punching module (1) for punching a hole at any axial depth on the side wall of a clamped and fixed circular tube (00), wherein when the side punching module (1) punches the side wall of the circular tube (00), the side punching module (1) rigidly supports the side wall of the circular tube (00) at the punching position; The side punching module (1) comprises side punching needles (11) and punching tubes (12) arranged opposite to each other on both sides of the circular tube (00), and an expansion assembly (13) is provided at the end of the side punching needle (11); The side punch needle (11) passes through the circumferentially covered punch needle guide sleeve (14) to punch the proximal side of the circular tube (00), and the side punch needle (11) performs the punching work before the punch tube (12). After the side punch needle (11) passes through the circular tube (00), the side punch needle (11) abuts against the inner side wall of the distal side of the circular tube (00), and the expansion component (13) is opened to rigidly support the inner side wall of the circular tube (00); The open end of the punching tube (12) is configured in a blade shape. The punching tube (12) punches the side wall of the circular tube (00) rigidly supported by the expansion assembly (13). After punching, the side punching needle (11) penetrates into the punching tube (12). The punching tube (12) punches the side wall of the circular tube (00) at the far side simultaneously. The punching needle guide sleeve (14) rigidly supports the punching tube (12). The expansion assembly (13) includes a needle (131) and a plurality of support heads (132); The needle head (131) is elastically and telescopically arranged at the punching end of the side punch needle (11); The support head (132) is rotatably mounted on the needle head (131), and the support head (132) is hinged to the side punch needle (11) via a hinged arm (133). When the needle head (131) contracts, the support head (132) changes its angle with the hinged arm (133), and the support head (132) rotates and swings out to form an umbrella-shaped skeleton structure.

2. The single tube punching and bending machine according to claim 1, characterized in that: The punching mechanism (I) further comprises an end punching module (2) for punching the end of the circular tube (00), the end punching module (2) comprising an upper punching needle (21) and a positioning core rod (22), the upper punching needle (21) punches the upper side wall of the circular tube (00) downwardly, and the positioning core rod (22) extends into the circular tube (00) for rigid support.

3. The single tube punching and bending machine according to claim 1, characterized in that: The punching mechanism (I) further comprises a clamping module (3) for clamping and fixing the round tube (00), wherein the clamping module (3) comprises two groups of clamping blocks (31) that move in opposite directions, and the clamping blocks (31) are closed to clamp and fix the round tube (00).

4. The single tube punching and bending machine according to claim 1, characterized in that: Also includes: An automatic feeding mechanism (II), the automatic feeding mechanism (II) comprising a material sorting module (4) and a feeding module (5); The material sorting module (4) outputs the horizontally placed round tubes (00) one by one to the loading and clamping station (01); The feeding module (5) grabs the round tube (00) located at the feeding and clamping station (01) and transfers it to the punching mechanism (I).

5. The single tube punching and bending machine according to claim 4, characterized in that: The material sorting module (4) includes a material bin (41) and a material sorting component (42); The silo (41) stores a plurality of horizontal round tubes (00); The material sorting component (42) includes an L-shaped material channel (421), a positioning plate (422) and a lifting block (423). The L-shaped material channel (421) is connected to the material bin (41). The positioning plate (422) is arranged at the outlet of the L-shaped material channel (421). The positioning plate (422) is stepped with the loading and clamping station (01) and the positioning station (02). The positioning station (02) is located above the loading and clamping station (01). The lifting block (423) is arranged at the positioning station (02). The lifting block (423) pushes up the round tube (00) located at the positioning station (02), so that the round tube (00) rolls down to the loading and clamping station (01).

6. The single tube punching and bending machine according to claim 5, characterized in that: The feeding module (5) includes a linear slide assembly (51), a lifting assembly (52) and a material grabbing claw (53); The linear slide assembly (51) connects the positioning station (02) and the punching mechanism (I); The lifting assembly (52) is mounted on the slide (511) of the linear slide assembly (51), and the lifting assembly (52) drives the material grabbing claw (53) to lift and grasp the round tube (00).

7. The single tube punching and bending machine according to claim 1, characterized in that: Also includes: A pipe bending mechanism (III), the pipe bending mechanism (III) being arranged adjacent to the punching mechanism (I), the pipe bending mechanism (III) performing pipe bending processing on the punched round pipe (00), and the pipe bending mechanism (III) comprising a pipe bending module (6) and a material clamping module (7); The pipe bending module (6) comprises a first pipe bending module (61) and a second pipe bending module (62) respectively arranged on both sides of the bending portion of the round pipe (00); the first pipe bending module (61) rolls the round pipe (00) to form a bend, and the second pipe bending module (62) covers the round pipe (00) to limit the bending extension position of the round pipe (00); The clamping module (7) is arranged at the other end of the round tube (00) relative to the bending tube module (6), and the clamping module (7) is arranged to clamp and position the round tube (00).

8. The single tube punching and bending machine according to claim 7, characterized in that: The pipe bending mechanism (III) further includes a blanking module (8) and an output module (9); The blanking module (8) is arranged beside the clamping module (7), and the blanking module (8) clamps the bent round tube (00) and flips it onto the output module (9); The output module (9) carries the bent round tube (00) for horizontal output.

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