A J-type tube automatic processing equipment

Abstract

The present invention discloses an automatic processing device for J-shaped tubes, comprising a frame, on which are provided a cutting mechanism, a tube bending mechanism, a first transport mechanism, a clamping die, a second transport mechanism, and a punching mechanism. The cutting mechanism is used to cut a long strip of tube into a straight tube; the tube bending mechanism is used to bend the straight tube into a J-shaped tube; the first transport mechanism is used to grab the straight tube produced by the cutting mechanism and transport it to the tube bending mechanism; the clamping die is used to clamp and fix the J-shaped tube; the second transport mechanism is used to grab the J-shaped tube bent by the tube bending mechanism and transport it to the clamping die; the punching mechanism comprises an ejector pin, a punching needle, and a punching drive device. The ejector pin is provided with a punching die hole that cooperates with the punching needle. The ejector pin is inserted into the inner hole of the hook section of the J-shaped tube. The punching needle extends into the space between the straight tube section and the hook section of the J-shaped tube and punches a hole in the hook section of the J-shaped tube. The present invention can realize fully automated forming of J-shaped tubes with tube holes, which is conducive to improving work efficiency and reducing labor costs.

Description

Technical Field

[0001] The invention relates to the technical field of production of raw materials for heat exchangers, and in particular to automatic processing equipment for J-shaped tubes. Background Art

[0002] As a compact heat exchanger, tube-fin heat exchanger is widely used in the refrigeration industry. Its main raw materials are copper tubes and fins.

[0003] In some special tube-fin heat exchangers, it is necessary to use Figure 1 The J-shaped tube 9 shown comprises a straight tube section 91 and a curved hook section 92, with a tube hole 921 defined on the inner side of the free end of the curved hook section 92. Currently, the method for producing such a J-shaped tube 9 is to first cut a straight tube 902 of an appropriate length, then bend the straight tube 902 against a curved film to form the J-shaped tube 9. Next, the ends of the J-shaped tube 9 are shaped, and finally, a hole is punched in the J-shaped tube 9 to form the J-shaped tube 9 with the tube hole 921.

[0004] At present, there is no equipment that can realize fully automatic processing and forming of the above-mentioned J-tube. The main difficulties are: first, since the punching position is on the inner side of the free end of the hook section, it is difficult to realize automatic punching of the J-tube. Therefore, manual punching is generally used to punch holes in the J-tube, which has high labor costs; second, since the copper tube itself has a certain elasticity, there will be a certain rebound deformation after the J-tube is bent. In order to solve this problem, there is a common practice of increasing the bending angle when bending the J-tube to reserve a margin for rebound deformation. However, since the rebound deformation of different J-tubes is different, for J-tubes with higher precision requirements, manual correction is currently required after bending the J-tube to ensure that its dimensional accuracy meets the requirements. Summary of the Invention

[0005] In view of this, an object of the present invention is to provide an automatic processing device for J-shaped tubes.

[0006] The technical solution adopted by the present invention to solve the technical problem is:

[0007] A J-shaped tube automatic processing device includes a frame, on which are provided:

[0008] The cutting mechanism is used to cut long strips of pipes into straight pipes;

[0009] The pipe bending mechanism is used to bend a straight pipe into a J-shaped pipe;

[0010] The first transport mechanism includes a first gripper capable of grabbing the straight tube produced by the cutting mechanism and a first motion mechanism capable of transporting the straight tube on the first gripper to the tube bending mechanism;

[0011] Clamping die, used to clamp and fix the J-shaped tube;

[0012] The second transport mechanism includes a second gripper capable of grasping the J-shaped tube bent by the tube bending mechanism and a second motion mechanism capable of transporting the J-shaped tube on the second gripper to the clamping die;

[0013] The punching mechanism includes an ejector pin, a punching needle, and a punching drive device. When the ejector pin is driven by the punching drive device, it is inserted into the interior of the hook section of the J-shaped tube on the clamping die. The ejector pin is provided with a die hole that cooperates with the punching needle. When the punching needle is driven by the punching drive device, it extends into the space between the straight tube section and the hook section of the J-shaped tube and punches a hole in the hook section of the J-shaped tube.

[0014] In a preferred embodiment of the present invention, the cutting mechanism includes a cutting component capable of circumferentially cutting a cutting mark on the elongated pipe fitting and a breaking component capable of breaking the pipe fitting.

[0015] In a preferred embodiment of the present invention, the cutting assembly includes a cutting and clamping device that can clamp and fix the pipe fitting and a blade that can make a circumferential cutting mark on the surface of the pipe fitting. The breaking assembly includes a breaking clamp that can clamp the pipe fitting at the front side of the cutting and clamping device, and a breaking driver that can drive the breaking clamp to move forward to break the pipe fitting from the cutting mark.

[0016] In a preferred embodiment of the present invention, the first motion mechanism is a two-axis walking mechanism that can move in two axes in the left-right direction and the up-down direction.

[0017] In a preferred embodiment of the present invention, the first motion mechanism includes a first bracket set on a frame, a first movable seat movably set on the first bracket, a first transverse movement driver capable of driving the first movable seat to move left and right, a first lifting seat, and a first lifting driver set on the first movable seat and used to drive the first lifting seat to move up and down. The first clamping hand is a pneumatic clamping jaw set on the first lifting seat, and the inner sides of the two clamping fingers of the pneumatic clamping jaw are provided with a pipe clamping groove for clamping the straight pipe.

[0018] In a preferred embodiment of the present invention, the clamping die includes a clamping die driver, a first clamping module and a second clamping module. The clamping die driver is used to drive the first clamping module and the second clamping module to move relative to each other so that the clamping die can switch between an open state and a closed state.

[0019] In a preferred embodiment of the present invention, a support member is provided on the frame, the first clamping module is fixed on the support member, the second clamping module is movably provided on the support member and is located on the right side of the first clamping module, and the clamping module switches between an open state and a closed state when the clamping module driver drives the second clamping module to move left and right. A first J-shaped clamping groove is provided on the right side wall of the first clamping module, and a second J-shaped clamping groove is provided on the left side wall of the second clamping module. When the first clamping module and the second clamping module are closed, a J-shaped hole for clamping and accommodating the J-shaped tube is formed between the first clamping groove and the second clamping groove. The J-shaped hole includes a straight hole section for clamping and accommodating the straight tube section of the J-shaped tube and a curved hole section for clamping and accommodating the curved hook section of the J-shaped tube. Both end openings of the J-shaped hole face downward.

[0020] In a preferred embodiment of the present invention, the ejector pin and the punching needle are both located below the clamp, and the lower part of the clamp is provided with an avoidance groove located in the area surrounded by the J-shaped hole. The inner bend portion of the curved hole section away from the straight hole section overlaps with a portion of the avoidance groove so that the inner bend portion of the hook section of the J-shaped tube is exposed in the avoidance groove. When the punching needle is driven by the punching drive device, it can extend upward into the avoidance groove and then move toward the hook section of the J-shaped tube.

[0021] In a preferred embodiment of the present invention, the punching drive device includes a fixed seat, a second lifting seat, a second lifting driver arranged on the fixed seat and capable of driving the second lifting seat to move up and down, a punching bracket capable of moving back and forth on the second lifting seat, and a punching driver arranged on the second lifting seat and capable of driving the punching bracket to move back and forth. The punching needle is arranged at the upper end of the punching bracket and the head of the punching needle faces backward. When the second lifting seat moves upward, the punching needle extends upward into the avoidance groove. When the punching driver drives the punching needle to move backward in the avoidance groove, the punching needle punches a hole in the hook section of the J-shaped tube.

[0022] In a preferred embodiment of the present invention, the ejector pin is arranged on the second lifting seat, and when the second lifting seat moves upward, the ejector pin is inserted upward into the interior of the hook section of the J-shaped tube.

[0023] In a preferred embodiment of the present invention, the first clamping module is provided with an air guide hole communicating with the first clamping groove, and the second clamping module is provided with an air guide hole communicating with the second clamping groove.

[0024] In a preferred embodiment of the present invention, the second motion mechanism includes a second bracket arranged on the frame, a rotating base rotatably mounted on the second bracket, and a rotary driver capable of driving the rotating base to rotate. The second clamp is a pneumatic clamp arranged at one end of the rotating base, and the inner sides of the two clamping fingers of the pneumatic clamp are provided with clamping grooves for clamping the J-tube. After the second clamp grabs the J-tube from the bending mechanism, it is rotated to the top of the clamp so that the openings at both ends of the J-tube are facing downward.

[0025] In a preferred embodiment of the present invention, a guide hole that can guide left and right is provided on the first clamping module, and the guide hole is located in the area surrounded by the first clamping groove. A receiving member is movably provided in the guide hole, and the top contour of the receiving member is parallel to the hook portion of the first clamping groove, and the front side contour of the receiving member is parallel to the straight portion of the first clamping groove. When the first clamping module and the second clamping module are opened, a vertical gap is formed between the first clamping module and the second clamping module, into which the J-shaped tube on the second clamping hand can freely fall, and the receiving member is connected to a receiving member driver that can drive it to move into the vertical gap to receive the J-shaped tube.

[0026] In a preferred embodiment of the present invention, the second clamping module is provided with a guide hole arranged along the left-right direction, and the first clamping module is provided with a guide rod that is slidably engaged with the guide hole.

[0027] In a preferred embodiment of the present invention, the support member is a turntable, which is connected to a turntable driver that can drive it to rotate around a vertical axis. The frame is also provided with a tube end shaping mechanism that can shape the two ends of the J-shaped tube on the clamp. When the turntable rotates, the clamp switches between the working position of the tube end shaping mechanism and the working position of the punching mechanism.

[0028] In a preferred embodiment of the present invention, the pipe end shaping mechanism is located under the turntable, and includes a shaping support fixed on the frame, a third lifting seat movably arranged on the shaping support, a shaping rod arranged on the third lifting seat, a shaping cutter head, a shaping driver capable of driving the shaping cutter head to rotate relative to the third lifting seat, and a third lifting driver capable of driving the third lifting seat to move up and down.

[0029] The beneficial effects of the present invention are:

[0030] First, the present invention has four functions of cutting, bending, shaping and punching at the same time, and can realize the fully automatic forming of J-shaped tubes with tube holes, which is beneficial to improving work efficiency and reducing labor costs.

[0031] Second, the first clamping groove on the first clamping die and the second clamping groove on the second clamping die are both J-shaped, which can shape the J-shaped tube when clamping it, which is beneficial to improving the dimensional accuracy of the formed J-shaped tube.

[0032] Third, in the process of clamping and shaping the J-shaped tube by the clamping die, the tube end shaping mechanism can shape both ends of the J-shaped tube, and the punching mechanism can punch holes in the J-shaped tube, which is beneficial to improving work efficiency.

[0033] Fourth, when the second transport mechanism transports the J-shaped tube to the clamp, the second gripper only needs to move the J-shaped tube to the top of the clamp, and the J-shaped tube can fall into the J-mold after the clamp is opened. The height difference between the two can float within a very wide range, and the accuracy requirements in the left and right directions are not high, which is convenient for programming and debugging the machine, and helps to reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a cross-sectional view of the finished J-tube;

[0035] Figure 2 It is a structural schematic diagram of the first working state of the present invention;

[0036] Figure 3 It is a structural schematic diagram of the second working state of the present invention;

[0037] Figure 4 It is a structural diagram of the cutting mechanism;

[0038] Figure 5 It is a schematic diagram of the positional relationship among the clamping die, the second transport mechanism, the punching mechanism, and the tube end shaping mechanism;

[0039] Figure 6 This is a schematic diagram of the structure when the J-tube is located above the open clamp;

[0040] Figure 7 Schematic diagram of the positional relationship between the J-shaped tube and the first clamping module when the J-shaped tube falls onto the receiving member;

[0041] Figure 8 It is a schematic diagram of the structure when the clamp is in the closed position;

[0042] Figure 9 This is an exploded view of the clamping die;

[0043] Figure 10 This is a schematic diagram of the positional relationship between the punching mechanism and the clamping die when the punching mechanism is in the first working state;

[0044] Figure 11 This is a schematic diagram of the positional relationship between the punching mechanism and the clamping die when the punching mechanism is in the second working state;

[0045] Figure 12 This is a schematic diagram of the positional relationship between the punching mechanism and the clamping die when the punching mechanism is in the third working state;

[0046] Figure 13 yes Figure 12 Enlarged view of part A;

[0047] Figure 14 It is a structural diagram when the clamping die is located above the tube end shaping mechanism. DETAILED DESCRIPTION

[0048] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0049] It should be noted that all directional indications in the present invention (such as up, down, left, right, front, back...) are only used to explain the relative positional relationship and movement of the various components under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In addition, the descriptions of "preferred" and "less preferred" in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "preferred" or "less preferred" may explicitly or implicitly include at least one such feature.

[0050] Reference Figures 2 to 14 The present invention proposes an automatic processing equipment for J-shaped tubes, including a frame 1, on which a cutting mechanism, a tube bending mechanism 4, a first conveying mechanism 6, a clamping die 2 and a second conveying mechanism 7 are provided.

[0051] The cutting mechanism is used to cut the long strip of pipe 901 into a straight pipe 902; the bending mechanism 4 is used to bend the straight pipe 902 to form a J-shaped pipe 9; the first conveying mechanism 6 includes a first clamping hand 61 that can grab the straight pipe 902 produced by the cutting mechanism and a first moving mechanism that can transport the straight pipe 902 on the first clamping hand 61 to the bending mechanism 4; the clamping die 2 is used to clamp and fix the J-shaped pipe 9; the second conveying mechanism 7 includes a second clamping hand 71 that can grab the J-shaped pipe 9 bent by the bending mechanism 4 and a first moving mechanism that can transport the straight pipe 902 on the first clamping hand 61 to the bending mechanism 4. The J-shaped tube 9 on the second clamp 71 is transported to the second motion mechanism of the clamping die 2 fixing mechanism; the punching mechanism 5 includes a ejector pin 56, a punching needle 57 and a punching drive device. When the ejector pin 56 is driven by the punching drive device, it is inserted into the interior of the hook section 92 of the J-shaped tube 9 on the clamping die 2. A punching die hole 561 is provided on the ejector pin 56 to cooperate with the punching needle 57. When the punching needle 57 is driven by the punching drive device, it extends into the space between the straight tube section 91 and the hook section 92 of the J-shaped tube 9 and punches a hole in the hook section 92 of the J-shaped tube 9.

[0052] In a preferred embodiment of the present invention, the cutting mechanism includes a cutting assembly 3 capable of circumferentially cutting a cut mark on an elongated pipe 901, and a breaking assembly 8 capable of breaking the pipe 901. The cutting assembly 3 includes a cutting and clamping device 31 capable of clamping and fixing the pipe 901, and a blade 32 capable of rotating around the pipe 901. The blade 32 rotates around the pipe 901, creating a circumferential cut mark on the surface of the pipe 901. The specific structure of the cutting assembly 3 is conventional; for example, it can adopt the same structure as the pipe cutting device disclosed in the utility model patent with publication number CN 213002946 U. The breaking assembly 8 includes a breaking clamp 81 capable of clamping the pipe 901 at the front side of the cutting and clamping device 31, and a breaking driver 82 capable of driving the breaking clamp 81 forward. The break clamp 81 comprises two clamping blocks, each with a clamping groove on its inner side. Each clamping block is connected to a cylinder that can drive the two blocks to move left and right. When the two clamping blocks are brought together, they clamp the pipe therebetween. To break the pipe 901, the break clamp 81 grips one end of the pipe 901 and then moves forward under the power of the break actuator 82, breaking the pipe 901 at the cut mark. The break actuator 82 can be powered by a pneumatic cylinder, a hydraulic cylinder, an electric motor, or other power devices.

[0053] In certain embodiments of the present invention, the cutting mechanism may also adopt other structural forms, for example, a combination of a cutting component 3 and a snapping device. After the cutting component 3 cuts a circular cutting mark on the pipe 901, the pipe 901 is snapped by a snapping device at the end of the pipe 901 to form sections of straight pipes 902.

[0054] The working principle of the pipe bending mechanism 4 is as follows: a bending die 41 is provided with a circumferential pipe groove. A pipe clamping device is used to clamp one end of a straight pipe 902 and push the other end of the straight pipe 902, causing the straight pipe 902 to rotate around the pipe groove of the bending die 41. After rotating 180 degrees, a J-shaped pipe 9 is formed. Considering that the J-shaped pipe 9 will have some rebound deformation after bending, the bending angle is generally controlled to be slightly greater than 180 degrees, such as 190 degrees or 195 degrees. The specific structure of the pipe bending mechanism 4 can adopt the structure of the pipe bender disclosed in Patent Publication No. CN106001218 B, the structure of the improved pipe bending device disclosed in Patent Publication No. CN102069115A, or other existing pipe bending structures.

[0055] Reference Figure 2The first motion mechanism can be a two-axis walking mechanism that can move in two axes, left and right and up and down, or a three-axis walking mechanism that can move in three axes. Taking the two-axis walking mechanism as an example, the first motion mechanism specifically includes a first bracket 62 set on the frame 1, a first moving seat 63 movably set on the first bracket 62, a first transverse drive 64 that can drive the first moving seat 63 to move left and right, a first lifting seat 65, and a first lifting drive 66 set on the first moving seat 63 and used to drive the first lifting seat 65 to move up and down. The first clamping hand 61 is a pneumatic clamping claw set on the first lifting seat 65. The inner sides of the two clamping fingers of the pneumatic clamping claw are both provided with a pipe clamping groove for clamping the straight tube 902. The first transverse drive 64 and the first lifting drive 66 are preferably servo motors. The first transverse drive 64 is connected to the first moving seat 63 through a screw pair to drive it to move left and right, and the first lifting drive 66 is connected to the first lifting seat 65 through a screw pair to drive it to move up and down.

[0056] Reference Figures 5 to 9 The clamping die 2 includes a clamping die driver 25, a first clamping module 21, and a second clamping module 22. The clamping die driver 25 is used to drive the first clamping module 21 and the second clamping module 22 to move relative to each other, allowing the clamping die 2 to switch between an open and closed state. For example, the second clamping module 22 remains stationary while driving the first clamping module 21 to move left and right, or the first clamping module 21 remains stationary while driving the second clamping module 22 to move forward and backward. Alternatively, the output end of the clamping die driver 25 is connected to the first and second clamping modules via a transmission mechanism, driving the two modules to move synchronously in opposite directions.

[0057] Preferably, a support member 11 is provided on the frame 1, which can be a fixed bracket or a turntable. A first clamping module 21 is fixed to the support member 11, and a second clamping module 22 is movably provided on the support member 11 and located to the right of the first clamping module 21. A clamping die driver 25, such as a pneumatic cylinder or electric cylinder, is connected to the second clamping die 22 and can drive the second clamping die 22 to move left and right, thereby switching the clamping die 2 between an open state and a closed state. A J-shaped first clamping groove 211 is provided on the right side wall of the first clamping module 21, and a J-shaped second clamping groove 221 is provided on the left side wall of the second clamping module 22. When the first clamping module 21 and the second clamping module 22 are closed, a J-shaped hole 202 for clamping and accommodating the J-shaped tube 9 is formed between the first clamping groove 211 and the second clamping groove 221. The J-shaped hole 202 includes a straight hole section for clamping and accommodating the straight tube section 91 of the J-shaped tube 9 and a curved hole section for clamping and accommodating the curved hook section 92 of the J-shaped tube 9. Both ends of the J-shaped hole 202 are open downward.

[0058] Reference Figure 10-13In a preferred embodiment of the present invention, the punching mechanism 5 is located below the clamping die 2. The lower portion of the clamping die 2 is provided with an escape groove 201 in the area surrounding the J-shaped hole 202. The inwardly curved portion of the curved hole section, away from the straight hole section, overlaps with a portion of the escape groove 201, exposing the inwardly curved portion of the hook section 92 of the J-shaped tube 9 within the escape groove 201. The punching drive device includes a fixed base 51, a second lifting base 52, a second lifting actuator 53 disposed on the fixed base 51 and capable of driving the second lifting base 52 up and down, a punching bracket 54 capable of forward and backward movement on the second lifting base 52, and a punching actuator 55 disposed on the second lifting base 52 and capable of driving the punching bracket 54 back and forth. A punching needle 57 is disposed at the upper end of the punching bracket 54, with its head facing rearward. A punching needle 57 is disposed on the second lifting base 52. The second lifting actuator 53 is preferably a motor, which drives the second lifting base 52 up and down via a screw-nut pair. The punching actuator 55 is preferably a pneumatic cylinder.

[0059] The method for punching a hole in a J-shaped tube 91 is as follows: when the J-shaped tube 9 is clamped on the clamping die 2, the second lifting actuator 53 drives the second lifting base 52 upward, causing the punching needle 57 to extend upward into the avoidance groove 201 and simultaneously inserting the ejector pin 56 upward into the interior of the hook section 92 of the J-shaped tube 9. Then, while the second lifting base 52 remains stationary, the punching actuator 55 drives the punching bracket 54 and the punching needle 57 backward within the avoidance groove 201, thereby punching a hole 921 in the hook section 92 of the J-shaped tube 91. The ejector pin 56 is also positioned on the second lifting base 52 to ensure that the ejector pin 56 is inserted into the hook section 92 before the punching needle 57 punches the hole. After the hole is punched, since the openings at both ends of the J-shaped tube 9 face downward, the waste material generated by the punching is automatically discharged downward under the action of gravity.

[0060] With the above solution, during the punching process, the J-shaped tube 9 is clamped by the clamping die 22, which can remove residual stress during the bending process of the J-shaped tube 9, shape the J-shaped tube 9, and improve the dimensional accuracy of the J-shaped tube 9. In addition, while the J-shaped tube 9 is being clamped and shaped, the punching mechanism 5 can automatically punch the tube, realizing automated processing. The two steps are performed simultaneously, thereby improving work efficiency.

[0061] Furthermore, the first clamping module 21 is provided with an air guide hole 203 that is in communication with the first clamping groove 211, and the second clamping module 22 is provided with an air guide hole 203 that is in communication with the second clamping groove 221. One end of the air guide hole 203 is connected to an external high-pressure air source through an air pipe, and the air pipe is provided with a solenoid valve. After the J-tube 9 is punched, the punching mechanism 5 withdraws, and then the first clamping module 21 and the second clamping module 22 are separated, and a certain space is opened between them to form a vertical gap for the J-tube 91 to pass through. Then, the solenoid valve on the air pipe is opened, and air is injected into the first clamping groove 211 and the second clamping groove 221, so that the J-tube 9 can be smoothly disengaged and fall through the vertical gap between the first clamping module 21 and the second clamping module 22, realizing automatic unloading.

[0062] In a preferred embodiment of the present invention, the second motion mechanism includes a second bracket 72 arranged on the frame 1, a rotating base 73 rotatably mounted on the second bracket 72, and a rotary driver 74 capable of driving the rotating base 73 to rotate. The rotary driver 74 is preferably a stepping motor. The second clamp 71 is a pneumatic clamp arranged at one end of the rotating base. The inner sides of the two clamping fingers of the pneumatic clamp are provided with clamping grooves for clamping the J-type tube 9. The second clamp 71 grabs the J-type tube 9 from the tube bending mechanism 4 and rotates to the top of the clamp 2 so that the openings at both ends of the J-type tube 9 are facing downward. The first clamping module 21 is provided with a guide hole 212 capable of left and right guidance. The guide hole 212 is located in the area surrounded by the first clamping groove 211. A receiving member 23 is movably disposed within the guide hole 212. The top profile of the receiving member 23 is parallel to the hook portion of the first clamping groove 211, and the front profile of the receiving member 23 is parallel to the straight portion of the first clamping groove 211. When the first clamping module 21 and the second clamping module 22 are opened, a vertical gap is formed between the first clamping module 21 and the second clamping module 22, into which the J-shaped tube 9 on the second gripper 71 can freely fall. The receiving member 23 is connected to a receiving member driver 24 that can drive it to move into the vertical gap to receive the J-shaped tube 9. The receiving member driver 24 is preferably a pneumatic cylinder.

[0063] The second transport mechanism 7 moves the J-shaped tube 9 into the clamping die 2 as follows: first, the second gripper 71 rotates to the area where the tube bending mechanism 4 is located, grips the bent J-shaped tube 9, and then rotates above the clamping die 2 so that the openings at both ends of the J-shaped tube 9 face downward. While transporting the J-shaped tube 9, the first and second clamping modules 21 and 22 open, and the receiving member 23 moves into the vertical gap between the first and second clamping modules 21 and 22. The second gripper 71 is released, allowing the J-shaped tube 9 to freely fall onto the receiving member 23, which then performs preliminary positioning of the J-shaped tube 9. Finally, the second clamping module 22 and the second clamping module 22 are closed, and the receiving member 23 is simultaneously retracted into the guide hole 212. At this point, the J-shaped tube 9 can be clamped and fixed by the first and second clamping grooves 211 and 221.

[0064] In order to improve the smoothness of opening and closing of the clamping mold 2 , a guide hole 222 arranged along the left-right direction is provided on the second clamping module 22 , and a guide rod 213 slidingly matched with the guide hole 222 is provided on the first clamping module 21 .

[0065] In a preferred embodiment of the present invention, the support member 11 is a turntable, which is connected to a turntable driver that can drive it to rotate around a vertical axis. The turntable driver is preferably a stepping motor. The frame 1 is also provided with a tube end shaping mechanism that can shape the two ends of the J-shaped tube 9 on the clamp 2. When the turntable rotates, the clamp 2 switches between the working position of the tube end shaping mechanism and the working position of the punching mechanism 5.

[0066] Reference Figure 5 and Figure 14 The tube end shaping mechanism is located below the turntable and includes a shaping support 126 fixed to the frame, a third lifting base 121 movably mounted on the shaping support 126, a shaping rod 122 mounted on the third lifting base 121, a shaping cutter head 123, a shaping driver 124 capable of driving the shaping cutter head 123 to rotate relative to the third lifting base 121, and a third lifting driver 125 capable of driving the third lifting base 121 to move up and down. The third lifting driver 125 is preferably a combination of a motor and a screw rod, and the shaping driver 124 is preferably a servo motor. When the clamping die 2 rotates with the turntable to the position above the tube end shaping mechanism, the tube end shaping mechanism begins to operate, shaping the ends of the J-shaped tube 9. The shaping rod 122 has a conical head at its upper end. As the third lifting base 121 moves upward, it inserts into the end of the straight section 91 of the J-tube 9, repairing the shrinkage formed during the pulling process. The shaping cutter head 123 is detachably mounted on the motor shaft via a threaded connection or screw fixation. Different cutting tools can be replaced as needed to perform different shaping operations on the tube end. For example, a milling cutter capable of removing the end of the hook section 92 of the J-tube 9 can be replaced; a cutting tool capable of shaping the inner diameter of the tube end can also be replaced; or a combination of cutting tools can be used to shape both the inner and outer diameters of the tube end.

[0067] The working process of the present invention is as follows: first, the cutting mechanism cuts the tube 901 into sections of straight tubes 902, then the first gripper 61 of the first conveying mechanism 6 grabs the straight tube 902 and conveys it to the tube bending mechanism 4; then, the tube bending mechanism 4 bends the straight tube 902 into a J shape; after bending, the second gripper 71 of the second conveying mechanism 7 grabs the bent J-shaped tube 9 and conveys it to the top of the clamping die 2 so that both ends of the J-shaped tube 9 are facing downwards. During the process of the second conveying mechanism 7 conveying the J-shaped tube 9, the clamping die 2 is opened, and then The second clamp 71 is released, allowing the J-shaped tube 9 to fall into the clamp 2; then the clamp 2 is closed to clamp the J-shaped tube 9 and shape the J-shaped tube 9. At this time, the clamp 2 is located above the tube end shaping mechanism, and then the tube end shaping mechanism works to shape the two ends of the J-shaped tube 9; after the shaping is completed, the turntable rotates one station and moves the clamp 2 with the J-shaped tube 9 to the top of the punching mechanism 5, and then the punching mechanism 5 works to automatically punch a hole on the inner side of the hook section 92 of the J-shaped tube 9. After the punching is completed, a finished J-shaped tube 9 can be formed.

[0068] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A J-type tube automatic processing equipment, characterized in that, The machine comprises a frame (1), wherein the frame (1) is provided with: The cutting mechanism comprises a cutting assembly (3) capable of circumferentially cutting a cutting mark on a long strip of pipe (901) and a breaking assembly (8) capable of breaking the pipe (901) to form a straight pipe (902); A pipe bending mechanism (4) for bending a straight pipe (902) to form a J-shaped pipe (9); A first transport mechanism (6) includes a first gripper (61) capable of grasping the straight tube (902) produced by the cutting mechanism and a first motion mechanism capable of transporting the straight tube (902) on the first gripper (61) to the tube bending mechanism (4); A clamping die (2) for clamping and fixing the J-shaped tube (9); A second transport mechanism (7) includes a second gripper (71) capable of grasping the J-shaped tube (9) bent by the tube bending mechanism (4) and a second motion mechanism capable of transporting the J-shaped tube (9) on the second gripper (71) to the clamping die (2) fixing mechanism; A punching mechanism (5) comprising a thimble (56), a punching needle (57) and a punching drive device, wherein the thimble (56) is inserted into the interior of the hook section (92) of the J-shaped tube (9) on the clamping die (2) when driven by the punching drive device, and a punching die hole (561) is provided on the thimble (56) for cooperating with the punching needle (57), and the punching needle (57) is extended into the space between the straight tube section (91) and the hook section (92) of the J-shaped tube (9) when driven by the punching drive device and punches a hole in the hook section (92) of the J-shaped tube (9); The clamping die (2) comprises a clamping die driver (25), a first clamping module (21) and a second clamping module (22), wherein the clamping die driver (25) is used to drive the first clamping module (21) and the second clamping module (22) to move relative to each other so that the clamping die (2) can be switched between an open state and a closed state; The frame (1) is provided with a support member (11), the first clamping module (21) is fixed on the support member (11), the second clamping module (22) is movably provided on the support member (11) and is located on the right side of the first clamping module (21), the clamping die driver (25) drives the second clamping module (22) to move left and right so that the clamping die (2) switches between an open state and a closed state, the first clamping module (21) is provided with a J-shaped first clamping groove (211), and the second clamping module (22) is provided with a J-shaped first clamping groove (211). (22) is provided with a J-shaped second clamping groove (221), and when the first clamping module (21) and the second clamping module (22) are closed, a J-shaped hole (202) for clamping and receiving the J-shaped tube (9) is formed between the first clamping groove (211) and the second clamping groove (221), and the J-shaped hole (202) includes a straight hole section for clamping and receiving the straight tube section (91) of the J-shaped tube (9) and a curved hole section for clamping and receiving the hook section (92) of the J-shaped tube (9), and both ends of the J-shaped hole (202) are open downward; The first clamping module (21) is provided with a guide hole (212) capable of guiding left and right, the guide hole (212) being located in an area surrounded by the first clamping groove (211), a receiving member (23) being movably provided in the guide hole (212), the top profile of the receiving member (23) being parallel to the hook portion of the first clamping groove (211), the front profile of the receiving member (23) being parallel to the straight portion of the first clamping groove (211), and when the first clamping module (21) and the second clamping module (22) are opened, a vertical gap is formed between the first clamping module (21) and the second clamping module (22) into which the J-shaped tube (9) on the second clamping hand (71) can freely fall, and the receiving member (23) is connected to a receiving member driver (24) capable of driving it to move into the vertical gap to receive the J-shaped tube (9).

2. The J-tube automatic processing equipment according to claim 1, characterized in that: The ejector pin (56) and the punching needle (57) are both located below the clamp (2). The lower portion of the clamp (2) is provided with an avoidance groove (201) located in the area surrounded by the J-shaped hole (202). The inner curved portion of the curved hole section away from the straight hole section overlaps with a portion of the avoidance groove (201) so that the inner curved portion of the hook section (92) of the J-shaped tube (9) is exposed in the avoidance groove (201). When driven by the punching drive device, the punching needle (57) can extend upward into the avoidance groove (201) and then move toward the hook section (92) of the J-shaped tube.

3. The J-tube automatic processing equipment according to claim 2, characterized in that: The punching drive device comprises a fixed seat (51), a second lifting seat (52), a second lifting driver (53) arranged on the fixed seat (51) and capable of driving the second lifting seat (52) to move up and down, a punching bracket (54) capable of moving forward and backward on the second lifting seat (52), and a punching driver (55) arranged on the second lifting seat (52) and capable of driving the punching bracket (54) to move forward and backward. The punching needle (57) is arranged at the upper end of the punching bracket (54) and the head of the punching needle (57) faces backward. When the second lifting seat (52) moves upward, the punching needle (57) extends upward into the avoidance groove (201). When the punching driver (55) drives the punching needle (57) to move backward in the avoidance groove (201), a hole is punched in the hook section (92) of the J-shaped tube (9).

4. The J-tube automatic processing equipment according to claim 3, characterized in that: The ejector pin (56) is arranged on the second lifting seat (52), and when the second lifting seat (52) moves upward, the ejector pin (56) is inserted upward into the interior of the hook section (92) of the J-shaped tube (9).

5. The J-tube automatic processing equipment according to claim 1, characterized in that: The second motion mechanism includes a second bracket (72) arranged on the frame (1), a rotating base (73) rotatably mounted on the second bracket (72), and a rotary driver (74) capable of driving the rotating base (73) to rotate. The second gripper (71) is a pneumatic gripper arranged at one end of the rotating base. The second gripper (71) grabs the J-shaped tube (9) from the tube bending mechanism (4) and rotates to the top of the clamping die (2) so that the openings at both ends of the J-shaped tube (9) face downward.

6. The J-tube automatic processing equipment according to claim 1, characterized in that: The support member (11) is a turntable connected to a turntable driver capable of driving the turntable to rotate around a vertical axis. The frame (1) is also provided with a tube end shaping mechanism capable of shaping the two ends of the J-shaped tube (9) on the clamping die (2). When the turntable rotates, the clamping die (2) switches between the working position of the tube end shaping mechanism and the working position of the punching mechanism (5).

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