A method, device, system and control method for processing pipes

Abstract

The present invention relates to a method, device, system and control method for pipe processing, belonging to the technical field of pipe processing. The pipe processing device includes a long pipe feeding unit, a cutting unit, a pipe end processing unit and a pipe section handling unit; wherein, the cutting unit includes a cutting unit, a fixed clamping die and a breaking unit; the cutting unit is used to cut a breaking groove at a predetermined position on the long pipe and maintain the connection between the pipe section to be broken and the remaining long pipe; along the feeding direction of the long pipe, the feeding unit, the cutting unit, the fixed clamping die and the pipe end processing unit are arranged in sequence, and when the pipe end processing unit is on standby, there is a breaking operation space between the pipe end processing unit and the fixed clamping die; the breaking unit is used to break the pipe section with the breaking groove cut to obtain the required pipe section, and one end has been processed at the pipe end, so that a short pipe structure can be better obtained, and it can be widely applied to manufacturing fields such as refrigeration, automobiles, and aviation.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe processing, and specifically, to a pipe processing method, a pipe processing device, a pipe processing system, and a method for controlling the foregoing pipe processing device. Background Art

[0002] In the production and manufacturing process of some tubular parts, it is necessary to process the pipe according to steps such as long pipe feeding, cutting, and pipe section processing to obtain finished or semi-finished products; in the long pipe feeding step, usually, the raw material pipe in the form of a disk is straightened into a straight pipe structure for feeding, or a long pipe of a predetermined length is fed; and in subsequent steps, the fed long pipe is cut into short pipe structures according to a predetermined length, and then chamfering, pipe bending, punching, upsetting, etc. are carried out. Usually, the functional units for realizing these processing functions are integrated on a pipe processing device. For example, the patent document with the publication number CN109128849A discloses a production line for manufacturing an S-shaped pipe, which mainly includes three major parts, namely a feeding unit, a pipe section processing unit, and a pipe section handling unit; among them, the feeding unit includes a long pipe feeding unit and a non-chip turning unit for cutting the fed long pipe material into pipe sections of a predetermined length; the pipe section handling unit includes a manipulator for handling pipe sections between different functional units, so that the pipe sections flow between different functional units according to a predetermined process flow to complete the processing of the pipe sections. Since the pipe sections are cut on the spot during the long pipe feeding process, the pipe section processing unit usually includes a chamfering processing unit for chamfering the ends of the pipe sections. The chamfering processing unit needs to chamfer at least one of the pipe ends, and after cutting out the pipe sections, chamfering is carried out. During the process of processing the pipe sections by this pipe processing device, there are at least the following problems: during the non-chip turning of the pipe sections, usually, an internal shrinkage opening is generated at the cut pipe port, which affects the subsequent processing quality of the tubular parts.

[0003] In view of the internal shrinkage opening problem existing in the processing of the above-mentioned tubular parts, a common method is to first cut a breaking groove on the pipe section by using a non-chip turning unit, and then carry out a breaking treatment. For example, the patent document with the publication number CN109940103A discloses an integrated automatic forming device for a tee pipe, which uses two clamping dies to break the pipe section from the breaking groove, and in the subsequent processing process, uses a manipulator to take the pipe section off the breaking clamping die and then transfer it to the next processing unit for processing, resulting in a relatively complex process; in addition, for short pipe sections with a short length, it is very difficult to carry out breaking clamping. Summary of the Invention

[0004] The main object of the present invention is to provide a pipe processing device and system with improved structure, so as to better solve the problem of pipe port necking caused by non-chip turning, and can effectively avoid the need for re-identification processing of the processed pipe ends in subsequent processing;

[0005] Another object of the present invention is to provide a pipe processing method and a control method suitable for use with the above-mentioned pipe processing device.

[0006] To achieve the above main object, the pipe processing device provided by the present invention includes a frame and a long pipe feeding unit, a cutting unit, a pipe end processing unit and a pipe section handling unit installed on the frame; the long pipe feeding unit includes a feeding unit for driving the long pipe to move back and forth along the feeding direction; the cutting unit includes a cutting unit, a fixed clamping die and a breaking unit; the cutting unit is used to cut a breaking groove at a predetermined position on the long pipe and maintain the connection between the pipe section to be broken and the remaining long pipe; along the feeding direction, the feeding unit, the cutting unit, the fixed clamping die and the pipe end processing unit are arranged in sequence, and when the pipe end processing unit is on standby, there is a breaking operation space between the pipe end processing unit and the fixed clamping die: the breaking unit includes a lifting driving unit, a lifting bracket and a breaking pressing block installed on the lifting bracket, the lower surface of the breaking pressing block is concavely formed with a pipe pressing groove, and the groove length direction of the pipe pressing groove is arranged along the aforementioned feeding direction; the pipe section handling unit includes a supporting plate, a mounting bracket, a handling driving unit and a supporting reset mechanism; the lifting driving unit is installed on the mounting bracket and is used to drive the breaking pressing block to reciprocally lift and move between a downward pressing and breaking supporting position and an upward rising and avoiding discharging position through the lifting bracket; the supporting plate is movably installed on the lifting bracket along the transverse direction so as to reciprocally move between a supporting position directly below the pipe pressing groove and a discharging position deviating from directly below; the elastic restoring force of the supporting reset mechanism is used to force the supporting plate to move to the supporting position; a slope coupling mechanism is arranged between the mounting bracket and the supporting plate, and the slope coupling mechanism drives the supporting plate to overcome the elastic restoring force and horizontally move to the discharging position based on the upward movement of the supporting plate; and before or when the breaking pressing block descends to the downward pressing and breaking supporting position, the elastic restoring force is used to drive the supporting plate to move to the supporting position, and at this time, the distance between the breaking pressing block and the supporting plate is smaller than the aperture of the pipe clamping cavity of the fixed clamping die; the handling driving unit is used to drive the mounting bracket to move, so as to drive the supporting plate and the breaking block to move into or out of the breaking operation space.

[0007] In the above technical solution, by arranging the feeding unit, cutting unit, fixed clamping die and pipe end processing unit in sequence along the feeding direction, and by arranging the breaking unit and handling unit, during the pipe fitting processing, chamfering processing, cutting processing and breaking processing can be carried out in sequence as required, so as to better realize the processing of short pipes, and the overall structural layout is more reasonable and compact; and during the breaking process, based on the downward breaking action, the receiving of pipe segments is realized and transported outside the working station for discharging or the transfer processing of pipe segments, which can not only effectively solve the problem of pipe end necking, but also better maintain and transfer the end orientation of the pipe segments that have been processed at the pipe end, and there is no need to re-identify the processed pipe end during the subsequent processing.

[0008] The specific solution is that an installation plate forming an L-shaped structure with it is fixedly arranged on the outer edge of the material supporting plate; the installation plate is provided with a sleeving hole and more than two guiding holes; guiding columns adapted to the guiding holes are fixedly arranged on the lifting bracket, and a sleeve rod sleeved in the sleeving hole is fixedly arranged; the material supporting reset mechanism includes a compression spring sleeved outside the sleeve rod; the inner end of the compression spring abuts against the outer plate surface of the installation plate, and the outer end abuts against the outer end of the sleeve rod; the inner side face of the upper edge part of the installation plate is of an inclined plane structure, and the lower end part of a pushing block fixed on the installation bracket abuts against the inclined plane structure to form the inclined plane coupling mechanism.

[0009] The preferred solution is that the pipe fitting processing device includes a conveyor belt mechanism for receiving the pipe segments unloaded by the material supporting plate; the conveyor belt mechanism includes a rotary conveyor belt and a stop strip fixedly arranged on the outer surface of the rotary conveyor belt, the length direction of the stop strip is arranged along the width direction of the rotary conveyor belt, and the length direction is arranged along the length direction of the pipe pressing groove; the handling driving unit can drive the material supporting plate and the breaking block out of the breaking operation space to a position directly above the rotary conveyor belt. This technical solution can better maintain the pipe end orientation during the subsequent handling process, and the equipment structure is simple and can continuously convey the workpieces to be processed.

[0010] The preferred solution is that the pipe end processing unit is a pipe end chamfering unit.

[0011] The preferred solution is that the central axis of the pipe clamping cavity of the feeding unit, the rotation central axis of the non-chip turning unit, the central axis of the clamping die cavity of the fixed clamping die and the rotation central axis of the processing unit of the pipe end processing unit are arranged collinearly.

[0012] The preferred solution is that the handling driving unit is used to drive the installation bracket to reciprocate horizontally orthogonally to the feeding direction. This technical solution can further improve the compactness of the equipment structure layout.

[0013] To achieve the above-mentioned another object of the invention, the control method provided by the present invention is applicable to the pipe processing device described in any of the above technical solutions, and this control method sequentially includes the following steps:

[0014] Pipe end processing step: control the feeding unit to drive the long pipe forward until the front end of the long pipe is located at the pipe end processing station; then control the fixed clamping die to clamp the front end portion of the long pipe; then control the pipe end processing unit to perform pipe end processing on the front end of the long pipe.

[0015] Pipe section cutting step: control the fixed clamping die to open to release the long pipe, and then control the feeding unit to drive the long pipe backward until the section to be cut is located at the cutting station; then control the cutting unit to cut out the breaking groove at a predetermined position of the long pipe.

[0016] Pipe section breaking step: control the feeding unit to drive the long pipe forward and make its front end portion pass directly below the pipe pressing groove until the breaking groove is located at the front side of the fixed clamping die, and control the fixed clamping die to clamp the long pipe; then control the lifting drive unit to drive the lifting bracket downward, drive the material supporting plate to move inward to the material supporting position, and drive the breaking pressing block to press down to break the front end portion of the long pipe from the breaking groove. The dropped pipe section falls onto the material supporting plate and is clamped on the material supporting plate by the downward pipe pressing groove.

[0017] Pipe section handling step: control the handling drive unit to drive the mounting bracket out of the breaking operation space and locate it at the unloading station; then control the lifting drive unit to drive the lifting bracket upward, drive the pipe pressing groove upward to release the clamping of the pipe section, and drive the material supporting plate to move outward to release the lifting of the pipe section, so that the pipe section falls to the target position.

[0018] To achieve the above-mentioned another object of the invention, the control method provided by the present invention is applicable to the pipe processing device described in any of the above technical solutions, and this control method sequentially includes the following steps:

[0019] Pipe end processing step: control the feeding unit to drive the long pipe forward until the front end of the long pipe is located at the pipe end processing station; then control the pipe end processing unit to perform pipe end processing on the front end portion of the long pipe.

[0020] Pipe section cutting step: control the cutting unit to cut out the breaking groove at a predetermined position of the long pipe.

[0021] Pipe segment breaking step: Control the feeding unit to drive the long pipe forward, and make its front end pass through directly below the pipe pressing groove until the breaking groove is located at the front side of the fixed clamping die, and control the fixed clamping die to clamp the long pipe; then control the lifting drive unit to drive the lifting bracket downward, and drive the material supporting plate to move inward to the material supporting position, and drive the breaking pressing block to press down to break the front end of the long pipe from the breaking groove. The dropped pipe section falls on the material supporting plate and is clamped on the material supporting plate by the downward pipe pressing groove.

[0022] Pipe segment handling step: Control the handling drive unit to drive the mounting bracket out of the breaking operation space and be located at the unloading station; then control the lifting drive unit to drive the lifting bracket upward, drive the pipe pressing groove upward to release the clamping of the pipe segment, and drive the material supporting plate to move outward to release the lifting of the pipe segment, so that the pipe segment falls to the target position.

[0023] The specific technical solution is that the control method includes a station reset step, which is located after the pipe segment cutting step and before the pipe segment breaking step; this station reset step includes the following steps: After controlling the feeding unit to drive the long pipe backward until its front end exits the breaking operation space, control the handling drive unit to drive the mounting bracket into the breaking operation space and be located at the breaking station. The station reset can be performed between multiple process nodes, and this technical solution can make full use of the backward movement of the pipe segment during cutting and effectively reduce the backward movement distance caused by avoiding pipe segment interference.

[0024] To achieve the above main purpose, the pipe processing and handling system provided by the present invention includes a pipe processing and handling device and a control unit. The control unit includes a processor and a memory, and the memory stores a computer program; wherein, the pipe processing and handling device is the pipe processing and handling device described in any of the above technical solutions. When this computer program is executed by the processor, the following steps can be realized:

[0025] Pipe end processing step: Control the feeding unit to drive the long pipe forward until the front end of the long pipe is located at the pipe end processing station; then control the fixed clamping die to clamp the front end of the long pipe; then control the pipe end processing unit to perform pipe end processing on the front end of the long pipe.

[0026] Pipe segment cutting step: Control the fixed clamping die to open to release the long pipe, then control the feeding unit to drive the long pipe backward until the part to be cut is located at the cutting station; then control the cutting unit to cut out the breaking groove at a predetermined position of the long pipe.

[0027] Pipe segment breaking step: control the feeding unit to drive the long pipe forward, and make its front end pass through directly below the pipe pressing groove until the breaking groove is located at the front side of the fixed clamping die, and control the fixed clamping die to clamp the long pipe; then control the lifting drive unit to drive the lifting bracket downward, drive the material supporting plate to move inward to the material supporting position, drive the breaking pressing block to press down and break the front end of the long pipe from the breaking groove, and the dropped pipe segment falls on the material supporting plate and is clamped on the material supporting plate by the downward moving pipe pressing groove;

[0028] Pipe segment handling step: control the handling drive unit to drive the mounting bracket out of the breaking operation space and locate it at the unloading station; then control the lifting drive unit to drive the lifting bracket upward, drive the pipe pressing groove upward to release the clamping of the pipe segment, drive the material supporting plate to move outward to release the lifting of the pipe segment, and make the pipe segment fall to the target position.

[0029] To achieve the above-mentioned another invention object, the pipe processing method provided by the present invention includes a long pipe feeding step, a pipe end processing step, a pipe segment cutting and breaking step and a pipe segment handling step; the pipe end processing step includes performing pipe end processing on the front end of the long pipe fed in the long pipe feeding step based on the pipe end processing unit; the pipe segment cutting and breaking step sequentially includes a cutting step and a breaking step; the cutting step includes driving the long pipe to move backward from the pipe end processing station to the cutting station, then cutting a breaking groove at a predetermined position of the long pipe based on the pipe segment cutting unit, and maintaining the connection between the pipe segment to be broken and the remaining long pipe; the breaking step includes driving the long pipe to move forward from the cutting station to the breaking station, using the downward pressing action of the breaking block to break the pipe segment, making the pipe segment fall onto the material supporting plate, and keeping the direction of the pipe segment constrained between the breaking block and the material supporting plate based on the downward pressing action of the breaking block; the pipe segment handling step includes moving the pipe segment to the target position by moving the breaking block and the material supporting plate based on the constraint of the broken pipe segment by the breaking block and the material supporting plate, making the end direction of the processed pipe end remain in a predetermined direction, and releasing the holding constraint on the pipe segment based on the upward movement of the breaking block.

[0030] To achieve the above-mentioned another object of the invention, the pipe processing method provided by the invention includes a long pipe feeding step, a pipe end processing step, a pipe section cutting and breaking step, and a pipe section handling step; the pipe end processing step includes performing pipe end processing on the front end of the long pipe fed in the long pipe feeding step based on a pipe end processing unit; the pipe section cutting and breaking step sequentially includes a cutting step and a breaking step; the cutting step includes cutting a breaking groove at a predetermined position of the long pipe based on a pipe section cutting unit and maintaining the connection between the pipe section to be broken and the remaining long pipe; the breaking step includes breaking the pipe section by the pressing-down action of a breaking block, causing the pipe section to fall onto a material supporting plate, and based on the pressing-down action of the breaking block, constraining the pipe section between the breaking block and the material supporting plate, and keeping the end orientation of the pipe section that has been subjected to pipe end processing in a predetermined orientation; the pipe section handling step includes, based on the constraint of the pipe section obtained by breaking by the breaking block and the material supporting plate, moving the two to move the pipe section to a target position, keeping the end orientation of the pipe section that has been subjected to pipe end processing in a predetermined orientation, and releasing the holding constraint on the pipe section based on the upward movement of the breaking block. Description of the Drawings

[0031] Figure 1 Is a perspective view of the pipe processing system in an embodiment of the present invention;

[0032] Figure 2 Is a perspective view of the straightening unit in an embodiment of the present invention;

[0033] Figure 3 Is a perspective view of the feeding unit in an embodiment of the present invention;

[0034] Figure 4 Is a perspective view of the non-chip turning unit in an embodiment of the present invention;

[0035] Figure 5 Is Figure 1 The enlarged partial view of A in

[0036] Figure 6 Is a perspective view of the breaking and transferring unit in an embodiment of the present invention, including a fixed clamping die, a breaking unit, and a pipe section handling unit;

[0037] Figure 7 Is Figure 6 The enlarged partial view of B in

[0038] Figure 8 Is Figure 6 The enlarged partial view of C in

[0039] Figure 9 Is a perspective view of the pipe end processing unit in an embodiment of the present invention, specifically a pipe end chamfering unit;

[0040] Figure 10Isometric view of the conveyor belt mechanism in the embodiment of the present invention;

[0041] Figure 11 Is the working flowchart of the pipe processing method in the embodiment of the present invention;

[0042] Figure 12 Is the structural schematic diagram of the pipe section processed based on the embodiment of the present invention. Detailed implementation manners

[0043] The present invention will be further described below in conjunction with the embodiments and their accompanying drawings.

[0044] Embodiment

[0045] Refer to Figures 1 to 10 , the pipe processing system 1 of the present invention includes a frame 10 and a control unit, a long pipe feeding unit 2, a cutting unit, a pipe end processing unit 4, a pipe section handling unit 5 and a conveyor belt mechanism 6 installed on the frame 10. Except for the control unit, other functional units and the frame together constitute the pipe processing device in this embodiment; the cutting unit includes a cutting unit 3, a fixed clamping die 7 and a breaking unit 8, which together with the pipe section handling unit 5 constitute the breaking and transferring unit in this embodiment. Among them, the control unit includes a processor, a memory and a touch control panel 11. The processor receives the input instructions of the operator through the touch control panel 11, and at the same time controls the control unit, the long pipe feeding unit 2, the cutting unit 3, the pipe end processing unit 4, the pipe section handling unit 5 and the conveyor belt mechanism 6 to act by executing the computer program stored in the memory, for example, according to Figure 11 The program represented by the working flowchart shown to perform operations such as pipe fitting processing to obtain finished or semi-finished products of tubular parts.

[0046] The long pipe feeding unit 2 includes a straightening unit 21 and a feeding unit 22; as Figure 2 shown, the straightening unit 21 is composed of multiple groups of horizontal straightening wheels 210 and multiple groups of vertical straightening wheels 222; as Figure 3 shown, the feeding unit 22 includes a fixed clamping die 220, a movable clamping die 221 that can reciprocate along the feeding direction, and a linear displacement output device 222 for driving the movable clamping die 221 to reciprocate along the feeding direction. The linear displacement output device 222 is specifically constructed by using a servo motor 223 and a lead screw nut mechanism 224. During the working process, the fixed clamping die 220 and the movable clamping die 221 cooperate to drive the long pipe obtained by straightening to move back and forth along the feeding direction, and can effectively ensure the positioning accuracy of the pipe end transfer based on the servo motor 223. If directly feeding based on a straight long pipe, the aforementioned straightening unit 21 can be omitted, and at this time it is more convenient to move the long pipe back and forth for feeding.

[0047] As Figure 9As shown, the pipe end processing unit 4 is specifically constructed by a pipe end chamfering unit, including a chamfering head 40 and a linear displacement output device 41 for driving the chamfering head 40 to reciprocate along the feeding direction of the pipe fitting. Specifically, the chamfering head 40 is movably installed on the frame 10 along the feeding direction through a linear guide rail 44, and then is driven to reciprocate along the feeding direction by the linear displacement output device 41 composed of a servo motor 42 and a lead screw nut mechanism 43.

[0048] As Figure 4 shown, the cutting unit 3 is constructed by a non-chip turning unit, which is specifically used to cut a breaking groove at a predetermined position on the long pipe and maintain the connection between the pipe section to be broken and the remaining long pipe, so as to be able to perform subsequent breaking operations. The depth of the breaking groove is set based on the physical parameters and specific requirements of different pipe materials. The non-chip turning unit includes a mounting bracket 30, a turning head 33 fixedly installed thereon, and a rotary drive motor 31 for driving the turning head to rotate through a synchronous belt mechanism 32.

[0049] The conveyor belt mechanism 6 is used to receive the pipe sections unloaded by the pipe section handling unit 5. Its specific structure is as Figure 10 shown. The conveyor belt mechanism 6 includes a rotary conveyor belt 60, a rotary drive motor 61, and a stop bar 62 fixedly arranged on the outer surface of the rotary conveyor belt 60. The length direction of the stop bar 62 is arranged along the width direction of the rotary conveyor belt 60, that is, its length direction is arranged along the aforementioned feeding direction, so as to effectively ensure that the end orientation of the pipe end after pipe end processing remains predetermined during the transfer process. Among them, the "pipe end orientation" is configured as the position and orientation of the end that has been processed by the pipe end relative to the other end, that is, the identification of the pipe end can be realized.

[0050] As Figures 5 to 8As shown, the pipe section transport unit 5 includes a bracket 50, a support plate 53, a mounting bracket 51, a transport drive unit 52 and a support reset mechanism; in this embodiment, the support reset mechanism is constructed by a compression spring 58, and the transport drive unit 52 is specifically constructed by a linear displacement output device such as a transverse cylinder; the other units of the pipe section transport unit 5 are mounted and fixed on the frame 10 through the bracket 50, the driving direction of the transport drive unit 52 is orthogonal to the feeding direction of the aforementioned feeding unit 22, and the mounting bracket 51 is mounted on the bracket 50 through a linear guide rail 54 so as to be reciprocatingly movable in a first lateral direction orthogonal to the feeding direction. The breaking unit 8 includes a lifting drive unit 80, a lifting bracket 81 and a breaking pressure block 82 mounted on the lifting bracket 81, the lifting bracket 81 is mounted on the mounting bracket 51 so as to be reciprocatingly movable in a vertical direction through a lifting guide mechanism 83, and a pipe pressing groove 820 is formed in a concave manner on the lower surface of the breaking pressure block 82. The lifting guide mechanism 83 includes a guide tube 831 fixedly mounted on the mounting bracket 51 and a guide rod 830 movably mounted therein, and the lower end of the guide rod 830 is fixedly connected to the lifting bracket 81 .

[0051] The lifting drive unit 80 is specifically constructed by using a linear displacement output device such as a lifting cylinder, and is specifically installed on the mounting bracket 51. It is used to drive the lifting movement of the lifting bracket 81, and synchronously drive components such as the breaking pressure block 82 mounted on the lifting bracket 81 to reciprocally lift between the downward pressing and breaking stock position and the upward retracting and discharging position. The stock plate 53 is movably installed on the lifting bracket 81 along the transverse direction through a transverse movement guiding mechanism, and can reciprocally move between the stock position directly below the pipe pressing groove 820 and the discharging position deviating from directly below it; an installation plate 57 forming an L-shaped structure with it is fixedly provided on the outer edge of the stock plate 53; the installation plate 57 is provided with a sleeve hole 570 and two or more guiding holes 571; on the lifting bracket 81, a guiding column 810 adapted to the guiding hole 571 is fixedly provided, and a sleeve rod 811 sleeved in the sleeve hole 570 is fixedly provided. Among them, the guiding column 810 and the guiding hole 571 cooperate to form the aforementioned transverse movement guiding mechanism; a compression spring 58 is sleeved outside the sleeve rod 811, and its inner end abuts against the outer plate surface of the installation plate 57, and the outer end abuts against the outer end of the sleeve rod 811. That is, the elastic restoring force of the stock reset mechanism is used to force the stock plate 53 to move to the stock position, that is, to move to a position directly below the pipe pressing groove 820; the inner side surface of the upper edge portion of the installation plate 57 is an inclined surface structure 578, and the lower end portion of the pushing block 59 fixed on the mounting bracket 51 abuts against the inclined surface structure to form an inclined surface coupling mechanism. That is, an inclined surface coupling mechanism is arranged between the mounting bracket 51 and the stock plate 53; based on the upward movement of the installation plate 57, the inclined surface coupling mechanism generates an outward movement driving force to drive the stock plate 53 to overcome the elastic restoring force of the compression spring 58 and laterally move to the discharging position, that is, to deviate from the position directly below the pipe pressing groove 820; and before or when the breaking pressure block 82 moves downward to the downward pressing and breaking stock position, the elastic restoring force of the compression spring 58 is used to drive the stock plate 53 to reset to the stock position, and at this time, the distance between the breaking pressure block 82 and the stock plate 53 is smaller than the aperture of the pipe clamping cavity of the fixed clamping die 7, that is, it can prevent the pipe section from moving laterally. Preferably, the two can clamp the pipe fitting. It can be preferably provided with an elastic buffer layer on the stock plate 53; during the working process, the handling drive unit 5 is used to drive the mounting bracket 51 to move, and drive the stock plate 53 and the breaking block 82 to move into or out of the breaking operation space. That is, the handling drive unit 5 is used to drive the mounting bracket to reciprocally move transversely perpendicular to the feeding direction.

[0052] Such as Figure 1As shown, in this embodiment, along the feeding direction of the aforementioned feeding unit 22, the straightening unit 21, the feeding unit 22, the cutting unit 3, the fixed clamping die 7, and the pipe end processing unit 4 are arranged in sequence. Thus, the feeding unit 22 can drive the end of the long pipe to move back and forth between different workstations to achieve the processing purpose. Preferably, the central axis of the pipe clamping cavity of the feeding unit 22, the rotation central axis of the rotary cutting head 33 of the non-chip rotary cutting unit, the central axis of the clamping die cavity of the fixed clamping die 7, and the rotation central axis of the chamfering head 40 of the pipe end chamfering unit are arranged collinearly. And when the pipe end processing unit 4 is on standby, there is a breaking operation space 100 between the pipe end processing unit 4 and the fixed clamping die 7, so that the breaking unit 8 can be driven into the breaking operation space 100 for breaking operation as needed.

[0053] Among them, the lifting drive unit 80 is used to drive the breaking pressing block 82 to reciprocally lift between the downward pressing and material supporting position and the upward retracting and unloading position. The relative position relationship between these two positions is specifically set according to actual needs. At the "downward pressing and material supporting position", the pressing groove 820 can be used to clamp the pipe fitting on the clamping die of the feeding unit 22 or the fixed clamping die 7 and apply a downward pressing force to break it at the breaking groove. At this time, the material supporting plate 53 is exactly located directly below the pressing groove 820 and can lift the pipe fitting. And at the "upward retracting and unloading position", the pressing groove 820 can rise relative to the "downward pressing and material supporting position" to release the contact with the pipe fitting clamped on the clamping die of the feeding unit 22 or the fixed clamping die 7, so as to avoid the subsequent movement of the pipe fitting. At this time, the material supporting plate 53 has moved to a position deviating from directly below the pressing groove 820 and can unload and avoid the pipe fitting. In addition, the "long pipe" in the so-called "long pipe feeding unit" is only relative to the length of the pipe section obtained by breaking, and is not a limitation on the length of the pipe section fed. The feeding direction in this embodiment is arranged along the axial direction of the long pipe. The long pipe refers to the straightened pipe material or the originally straight pipe fitting.

[0054] In the above embodiment, the frame can be an integral frame, that is, the frames on which each processing unit is installed are fixedly connected to each other; or it can be a split frame, that is, at least one processing unit is installed on an independent and relatively independent frame, and there is no fixed connection between this frame and other frames on the machine body.

[0055] As Figure 11 shown, based on the above structural units and their layout positions on the frame, the control method of the pipe processing device composed of them includes a pipe end processing step S1, a pipe section cutting step S2, a pipe section breaking step S3, and a pipe section handling step S4. The specific process is as follows:

[0056] Tube end processing step S1: Control the feeding unit 22 to drive the long tube forward until the front end of the long tube is located at the tube end processing station; then control the fixed clamping die 7 to clamp the front end of the long tube; next, control the tube end processing unit 4 to perform tube end processing on the front end of the long tube.

[0057] In this step, in order to use the tube end processing unit 4 to chamfer the front end of the long tube 01 to obtain a chamfer 010 as shown in Figure 12 the figure.

[0058] In addition, for the disc-shaped tube material, during the feeding process of the long tube 01 by the feeding unit 22, due to the straightening effect of the straightening wheels on the straightening unit 21, the originally bent tube material becomes a straight tube structure.

[0059] Tube segment cutting step S2: Control the fixed clamping die 7 to open to release the long tube, then control the feeding unit 22 to drive the long tube backward until the part to be cut is located at the cutting station; next, control the cutting unit 3 to cut a break groove 011 at a predetermined position of the long tube.

[0060] The schematic diagram of the break groove 011 is as shown in Figure 12 the figure, so that there is a connection between the tube segment to be broken off and the remaining long tube.

[0061] Tube segment breaking step S3: Control the feeding unit 22 to drive the long tube forward and make its front end pass through directly below the tube pressing groove 820 until the break groove 011 is located in front of the fixed clamping die 7, that is, between the fixed clamping die 7 and the tube pressing groove 820, and control the fixed clamping die 7 to clamp the long tube; then control the lifting drive unit 80 to drive the lifting bracket 81 downward, and drive the material supporting plate 53 to move inward to the aforementioned material supporting position, and drive the breaking pressing block 82 to press down, and break the front end of the long tube from the break groove 011. The dropped tube segment falls onto the material supporting plate 83 and is clamped on the material supporting plate 83 by the downward moving tube pressing groove 820.

[0062] Tube segment handling step S4: Control the handling drive unit 5 to drive the mounting bracket 51 out of the breaking operation space, so that the relevant functional units installed on the mounting bracket 51 are all located at the unloading station; then control the lifting drive unit 80 to drive the lifting bracket 81 upward, drive the tube pressing groove 820 to move upward to release the clamping of the tube segment, and drive the material supporting plate 83 to move outward to release the lifting of the tube segment, so that the tube segment falls to the target position.

[0063] In the above steps, for relatively thin pipes, it is necessary to fix and support them based on a fixed clamping die to prevent them from protruding too long, which is not conducive to pipe end chamfering and other treatments. For relatively thick pipes, the fixed clamping die can be omitted from participating in the relevant work, thus omitting the related actions of the fixed clamping die. If the length of the processed pipe fitting is short, it is necessary to pull back the long pipe for cutting. For pipe fittings with a longer length, no pulling back is required. That is, the specific steps at this time are as follows:

[0064] Pipe end processing step S1: Control the feeding unit 22 to drive the long pipe forward until the front end of the long pipe is located at the pipe end processing station; then control the pipe end processing unit 4 to perform pipe end processing on the front end of the long pipe.

[0065] Pipe section cutting step S2: Then control the cutting unit 3 to cooperate with the feeding unit 22 to cut a breaking groove 011 at a predetermined position of the long pipe.

[0066] Pipe section breaking step S3: Control the lifting drive unit 80 to drive the lifting bracket 81 downward, drive the material supporting plate 53 to move inward to the material supporting position mentioned above, and drive the breaking pressing block 82 to press downward, so as to break the front end of the long pipe from the breaking groove 011. The dropped pipe section falls on the material supporting plate 83 and is clamped on the material supporting plate 83 by the downward pressing pipe groove 820.

[0067] In this step, the feeding unit 22 can be controlled to drive the long pipe forward to make the breaking groove 011 slightly away from the non-chip turning unit by a certain position, which can be configured according to needs.

[0068] Pipe section handling step S4: Control the handling drive unit 5 to drive the mounting bracket 51 out of the breaking operation space, so that the relevant functional units mounted on the mounting bracket 51 are all located at the unloading station; then control the lifting drive unit 80 to drive the lifting bracket 81 upward, drive the pressing pipe groove 820 to move upward to release the clamping of the pipe section, and drive the material supporting plate 83 to move outward to release the lifting of the pipe section, so that the pipe section falls to the target position.

[0069] Based on the above control method, in the working process of the present application, the program stored in the computer memory is executed by the processor to implement the above relevant steps and perform the pipe processing steps.

[0070] In addition, the present application also discloses a pipe processing method. The pipe processing device applicable to this processing method is not limited to the specific equipment structure in the above embodiments. This processing method includes a pipe loading step, a pipe end processing step, a pipe section cutting and breaking step, and a pipe section handling step. Among them, the pipe end processing step includes performing pipe end processing on the front end of the long pipe loaded in the long pipe loading step based on the pipe end processing unit; the pipe section cutting and breaking step sequentially includes a cutting step S21 and a breaking step S22. The specific processes of these two steps are as follows:

[0071] The cutting step S21 specifically includes driving the long tube to move backward from the tube end processing station to the cutting station, then cutting a break groove at a predetermined position of the long tube based on the non-chip rotary cutting unit, and maintaining the connection between the tube section to be broken and the remaining long tube.

[0072] The breaking step S22 includes driving the long tube to move forward from the cutting station to the breaking station, then using the pressing-down action of the breaking block to break the tube section, and causing the tube section to fall onto the material supporting plate, and keeping the direction of the tube section constrained between the breaking block and the material supporting plate based on the pressing-down action of the breaking block.

[0073] In addition, the tube section handling step includes, based on the constraint of the aforementioned breaking block and the material supporting plate on the obtained tube section by breaking, moving the two to move the tube section to the target position, and keeping the end orientation of the processed tube end in a predetermined direction, and releasing the holding constraint on the tube section based on the upward movement of the aforementioned breaking block. In this step, the material supporting plate can be arranged obliquely or swingable, without the need for it to move laterally, and the unloading process can also be achieved. That is, in this pipe processing method, the main point is to perform pre-cutting first, then breaking, and based on the breaking pressing-down action, cooperate with the material supporting plate located below it to clamp the knocked-down tube section to maintain its end orientation. There only needs to be a certain distance between the pipe fitting and the material supporting plate, without being too high, as long as the pipe fitting can be broken, so as to facilitate clamping the pipe fitting.

Claims

1. A pipe processing device, comprising a frame and a long pipe feeding unit, a cutting unit, a pipe end processing unit and a pipe section transporting unit installed on the frame; the long pipe feeding unit comprises a feeding unit, and the feeding unit is used to drive the long pipe to move forward and backward along the feeding direction; the cutting unit comprises a chipless peeling unit; characterized in that: The cutting unit includes a fixed clamping die and a breaking unit; the chipless peeling unit is used to peel a breaking groove along the circumference of the tube at a predetermined position on the long tube and maintain the connection between the tube section to be broken and the remaining long tube; Along the feeding direction, the feeding unit, the chipless peeling unit, the fixed clamping die and the tube end processing unit are arranged in sequence, and when the tube end processing unit is in standby, there is a breaking operation space between the tube end processing unit and the fixed clamping die: the breaking unit includes a lifting drive unit, a lifting bracket and a breaking pressure block installed on the lifting bracket, and the lower surface of the breaking pressure block is concavely formed with a tube pressing groove arranged along the feeding direction; the tube section conveying unit includes a supporting plate, a mounting bracket, a conveying drive unit and a supporting reset mechanism; The lifting drive unit is installed on the mounting bracket, and is used to drive the breaking pressure block to move back and forth between the downward pressing and breaking supporting position and the upward avoiding and unloading position through the lifting bracket; the supporting plate is installed on the lifting bracket in a lateral movement to move back and forth between the supporting position directly below the pressing pipe groove and the unloading position deviating from the directly below the pressing pipe groove; the elastic restoring force of the supporting reset mechanism is used to force the supporting plate to move to the supporting position; an inclined coupling mechanism is arranged between the mounting bracket and the supporting plate, and the inclined The surface coupling mechanism drives the supporting plate to overcome the elastic restoring force and move horizontally to the unloading position based on the upward movement of the supporting plate; and before or when the breaking pressure block descends to the downward pressing breaking supporting position, the elastic restoring force is used to drive the supporting plate to move to the supporting position, and at this time, the distance between the breaking pressure block and the supporting plate is smaller than the aperture of the clamping tube mold cavity of the fixed clamping mold; the transport driving unit is used to drive the mounting bracket to move, thereby driving the supporting plate and the breaking pressure block to move into or out of the breaking operation space; A mounting plate is fixedly arranged on the outer edge of the support plate, and the mounting plate and the support plate form an L-shaped structure; the mounting plate is provided with a sleeve hole and two or more guide holes; a guide column adapted to the guide hole is fixedly arranged on the lifting bracket, and a sleeve rod sleeved in the sleeve hole is fixedly arranged; the support reset mechanism includes a compression spring sleeved outside the sleeve rod; the inner end of the compression spring presses against the outer plate surface of the mounting plate, and the outer end presses against the outer end of the sleeve rod; The inner side surface of the upper edge of the mounting plate is a slope structure, and the lower end of the push block fixed on the mounting bracket presses against the slope structure to form the slope coupling mechanism; The pipe material processing device comprises a conveyor belt mechanism for receiving the pipe sections discharged from the supporting plate; The conveyor belt mechanism includes a rotary conveyor belt and a stop strip fixedly arranged on the outer surface of the rotary conveyor belt. The length direction of the stop strip is arranged along the width direction of the rotary conveyor belt, and the length direction is arranged along the length direction of the pipe pressing groove; the handling driving unit can drive the material supporting plate and the breaking pressing block out of the breaking operation space to a position directly above the rotary conveyor belt.

2. The pipe processing device according to claim 1, wherein: The pipe end processing unit is a pipe end chamfering unit; The handling driving unit is used to drive the mounting bracket to reciprocate horizontally orthogonally to the feeding direction.

3. A control method for a pipe processing device, characterized in that, The pipe processing device is the pipe processing device according to claim 1 or 2, and the control method sequentially includes the following steps: Pipe end processing step: Control the feeding unit to drive the long pipe forward until the front end of the long pipe is at the pipe end processing station; then control the fixed clamping die to clamp the front end of the long pipe; then control the pipe end processing unit to perform pipe end processing on the front end of the long pipe. Pipe section cutting step: Control the fixed clamping die to open to release the long pipe, then control the feeding unit to drive the long pipe backward until the pipe section to be cut is at the cutting station; then control the cutting unit to cut out the breaking groove at a predetermined position of the long pipe. Pipe section breaking step: Control the feeding unit to drive the long pipe forward so that its front end passes directly below the pipe pressing groove until the breaking groove is at the front side of the fixed clamping die, and control the fixed clamping die to clamp the long pipe; then control the lifting driving unit to drive the lifting bracket downward, drive the material supporting plate to move inward to the material supporting position, and drive the breaking pressing block to press down to break the front end of the long pipe from the breaking groove. The dropped pipe section falls on the material supporting plate and is clamped on the material supporting plate by the downward pipe pressing groove. Pipe section handling step: Control the handling driving unit to drive the mounting bracket out of the breaking operation space to the unloading station; then control the lifting driving unit to drive the lifting bracket upward, drive the pipe pressing groove upward to release the clamping of the pipe section, and drive the material supporting plate to move outward to release the lifting of the pipe section, so that the pipe section falls to the target position.

4. The control method according to claim 3, characterized in that The control method includes a station resetting step, which is located after the pipe section cutting step and before the pipe section breaking step; the station resetting step includes the following steps: After controlling the feeding unit to drive the long pipe backward until its front end exits the breaking operation space, control the handling driving unit to drive the mounting bracket into the breaking operation space and be at the breaking station.

5. A control method for a pipe processing device, characterized in that, The pipe processing device is the pipe processing device according to claim 1 or 2, and the control method sequentially includes the following steps: Pipe end processing step: Control the feeding unit to drive the long pipe forward until the front end of the long pipe is at the pipe end processing station; then control the pipe end processing unit to perform pipe end processing on the front end of the long pipe. Pipe segment cutting step, controlling the cooperation of the cutting unit and the feeding unit to cut out the breaking groove at a predetermined position of the long pipe; Pipe segment breaking step, controlling the lifting drive unit to drive the lifting bracket to descend, driving the material supporting plate to move inwards to the material supporting position, and driving the breaking pressing block to press down to break the front end of the long pipe from the breaking groove. The dropped pipe segment falls on the material supporting plate and is clamped on the material supporting plate by the descending pipe pressing groove; Pipe segment handling step, controlling the handling drive unit to drive the mounting bracket out of the breaking operation space and to the unloading station; then controlling the lifting drive unit to drive the lifting bracket to ascend, driving the pipe pressing groove to ascend to release the clamping of the pipe segment, and driving the material supporting plate to move outwards to release the lifting of the pipe segment, so that the pipe segment falls to the target position.

6. The control method according to claim 5, characterized in that, The control method includes a station reset step, which is located after the pipe segment cutting step and before the pipe segment breaking step; the station reset step includes the following steps: After controlling the feeding unit to drive the long pipe to move backwards until its front end exits the breaking operation space, control the handling drive unit to drive the mounting bracket into the breaking operation space and to the breaking station.

7. A pipe processing system, including a pipe processing device and a control unit, the control unit includes a processor and a memory, the memory stores a computer program, and is characterized in that: When the computer program is executed by the processor, it can implement the steps of the control method according to any one of claims 3 to 6.

8. A pipe processing method, based on the pipe processing device according to claim 1 or 2; including a long pipe feeding step, a pipe end processing step, a pipe segment cutting and breaking step, and a pipe segment handling step; the pipe end processing step includes, based on the pipe end processing unit, performing pipe end processing on the front end of the long pipe fed in the long pipe feeding step; and is characterized in that: The pipe segment cutting and breaking step sequentially includes a cutting step and a breaking step; The cutting step includes driving the long pipe to move backwards from the pipe end processing station to the cutting station, then cutting out a breaking groove at a predetermined position of the long pipe based on the pipe segment cutting unit, and maintaining the connection between the pipe segment to be broken and the remaining long pipe; The breaking step includes driving the long pipe to move forwards from the cutting station to the breaking station, using the downward pressing action of the breaking pressing block to break the pipe segment, and making the pipe segment fall onto the material supporting plate, and based on the downward pressing action of the breaking pressing block, keeping the direction of the pipe segment constrained between the breaking pressing block and the material supporting plate; The pipe segment handling step includes, based on the constraint of the breaking pressing block and the material supporting plate on the broken pipe segment, moving the two to move the pipe segment to the target position, keeping the end direction of the already pipe end processed to be the predetermined direction, and releasing the holding constraint on the pipe segment based on the upward movement of the breaking pressing block.

9. A method for processing a pipe, based on the pipe processing device according to claim 1 or 2; It includes a long pipe feeding step, a pipe end processing step, a pipe section cutting and breaking step, and a pipe section handling step; the pipe end processing step includes performing pipe end processing on the front end of the long pipe fed in the long pipe feeding step based on a pipe end processing unit; characterized in that: The pipe section cutting and breaking step sequentially includes a cutting step and a breaking step; The cutting step includes cutting a breaking groove at a predetermined position of the long pipe based on a pipe section cutting unit and maintaining the connection between the pipe section to be broken and the remaining long pipe; The breaking step includes breaking the pipe section by the downward pressing action of a breaking pressing block, causing the pipe section to fall onto a supporting plate, and based on the downward pressing action of the breaking pressing block, constraining the pipe section between the breaking pressing block and the supporting plate, and keeping the end orientation of the pipe section that has been pipe end processed as a predetermined orientation; The pipe section handling step includes, based on the constraint of the pipe section obtained by breaking by the breaking pressing block and the supporting plate, moving the two to move the pipe section to a target position, keeping the end orientation of the pipe section that has been pipe end processed as a predetermined orientation, and releasing the holding constraint on the pipe section based on the upward movement of the breaking pressing block.

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