Left-right co-bending pipe bending machine with single swing arm and double guide dies and using method of left-right co-bending pipe bending machine

Abstract

The invention discloses a left-right co-bending pipe bending machine with a single swing arm and double guide dies and a using method of the left-right co-bending pipe bending machine. The left-right co-bending pipe bending machine comprises a rack, and a die changing component is arranged on the rack; a machine head is arranged on the die changing part, and the die changing part drives the machine head to move in the horizontal or vertical direction; the machine head comprises a mounting base, a rotary driving device is arranged on the mounting base, a round die and a swing arm component are arranged on the rotary driving device, and the round die and the swing arm component are driven by the rotary driving device to rotate; a left bending guide die device and a right bending guide die device are arranged on the two sides of the round die respectively, and lifting avoiding driving devices are arranged between the left bending guide die device and the mounting base and between the right bending guide die device and the mounting base respectively. The swing arm component comprises a left bending and clamping die body and a right bending and clamping die body. According to the pipe bending machine, the die changing component drives the machine head to move so as to change the relative position of the pipe fitting and the round die, so that the pipe bending direction can be rapidly switched, die changing operation is not needed, time is greatly saved, and production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe bending machines, and in particular to a left-right co-bending pipe bending machine with a single swing arm and double guide dies and a use method thereof. Background Art

[0002] A pipe bender is a mechanical device used to process metal pipes and bend them into specific shapes. Existing pipe benders are often limited by their structure and can only achieve bending in a single direction (left or right), or require frequent mold changes when bending at multiple angles, resulting in low production efficiency and difficulty in ensuring bending accuracy. With the development of industrial technology, the automotive, aerospace and other industries have an increasing demand for complex-shaped pipes and the requirements for precision are also getting higher and higher. These industries require equipment that can quickly and accurately process pipes with complex curved shapes. However, traditional pipe benders can only achieve bending in one direction and can no longer meet the production needs of pipes with complex curved shapes in modern industry. Summary of the invention

[0003] The purpose of the present invention is to solve the deficiencies in the prior art and to provide a left-right co-bending pipe bending machine with a single swing arm and double guide dies and a method for using the same.

[0004] The object of the present invention is achieved through the following technical scheme: a left-right co-bending pipe bending machine with a single swing arm and double guide dies, comprising a frame, on which a die changing component is provided; a machine head is provided on the die changing component, and the machine head is driven to move in a horizontal or vertical direction by the die changing component; the machine head comprises a mounting base, on which a rotary drive device is provided, and a round die and a swing arm component are provided on the rotary drive device, and the round die and the swing arm component are driven to rotate by the rotary drive device;

[0005] A left-bend guide mold device and a right-bend guide mold device are respectively provided on both sides of the circular mold, and a lifting and avoiding driving device is respectively provided between the left-bend guide mold device and the right-bend guide mold device and the mounting base; the swing arm component includes a left-bend clamping mold body and a right-bend clamping mold body;

[0006] When the pipe is subjected to left bending, the left bending guide die device and the left bending clamp die body are in an ascending working state, the right bending clamp die body and the right bending guide die device are both in a descending avoidance state, the pipe is clamped between the left bending clamp die body and the round die, and the pipe is against the left bending guide die device;

[0007] When the pipe is bent right, the right bend guide die device and the right bend clamp die body are in an ascending working state, the left bend clamp die body and the left bend guide die device are in a descending avoidance state, the pipe is clamped between the right bend clamp die body and the circular die, and the pipe is abutted against the right bend guide die device.

[0008] Preferably, the rotation drive device includes a circular mold rotation drive motor, a swing arm rotation drive motor, a main shaft, and a rotating outer ring. The main shaft is connected to the circular mold rotation drive motor, and the main shaft passes through the middle of the rotating outer ring. A bearing is provided between the main shaft and the rotating outer ring. The circular mold is arranged at the upper end of the main shaft. The swing arm rotation drive motor is transmission-connected to the rotating outer ring. The swing arm component is connected to the rotating outer ring.

[0009] Preferably, the mold changing component includes a first linear module and a second linear module, the first linear module is arranged on the frame, the second linear module is arranged on the first linear module, the first linear module is arranged along the vertical direction, and the second linear module is arranged along the horizontal direction; the mounting base is arranged on the second linear module.

[0010] Preferably, the frame is provided with a supporting device, the supporting device comprises a fixed bracket mounted on the frame, and the fixed bracket is provided with a clamping claw for clamping the pipe fitting. During the pipe bending process, the pipe fitting passes through the clamping claw, and the clamping claw can loosen or clamp the pipe fitting.

[0011] Preferably, the left-bending guide die device and the right-bending guide die device have the same structure, the left-bending guide die component comprises a main body component, a guide die clamping cylinder, a sliding seat, a first connecting rod, and a second connecting rod, the main body component is provided with a first guide rail component, the sliding seat is slidably connected to the first guide rail component, the cylinder body of the guide die clamping cylinder is rotatably connected to the main body component, one end of the first connecting rod is rotatably connected to the main body component, the other end of the first connecting rod is simultaneously rotatably connected to one end of the second connecting rod and the front end of the piston rod on the guide die clamping cylinder, the cylinder body of the guide die clamping cylinder is rotatably connected to the main body component; the other end of the second connecting rod is rotatably connected to the main body component; a connecting body is provided on the sliding seat, and the other end of the second connecting rod is rotatably connected to the connecting body; a guide die body is provided on the sliding seat.

[0012] Preferably, the body component is provided with a second guide rail component, the second guide rail component is arranged along the vertical direction, and the body component is slidably connected to the frame through the second guide rail component.

[0013] Preferably, the lifting and avoiding driving device is a lifting cylinder, which is arranged along the vertical direction, the cylinder body of the lifting cylinder is fixedly connected to the mounting base, and the piston rod of the lifting cylinder is connected to the main body component.

[0014] A method for using a left-right co-bending pipe bender with a single swing arm and double guide dies, the specific method is as follows:

[0015] When the pipe is subjected to left bending, the swing arm component is in the initial state of left bending, at which time the swing arm component is close to the left bending guide die device, the left bending guide die device and the left bending clamping die body are in the ascending working state, the right bending clamping die body and the right bending guide die device are in the descending avoidance state, the pipe is clamped between the left bending clamping die body and the circular die, and the pipe is against the guide die body on the left bending guide die device; the swing arm is driven to rotate by the rotary drive device to realize the bending of the pipe;

[0016] When the pipe is bent right, the swing arm component is in the initial state of right bending, at which time the swing arm component is close to the right bending guide die device, the right bending guide die device and the right bending clamping die body are in the ascending working state, the left bending clamping die body and the left bending guide die device are in the descending avoidance state, the pipe is clamped between the right bending clamping die body and the circular die, and the pipe is against the guide die body on the right bending guide die device; the swing arm is driven to rotate by the rotary drive device to realize the bending of the pipe;

[0017] When switching from left-bending processing to right-bending processing, the left-bending clamping die body and the left-bending guide die device are first switched to the descending avoidance state, and the die-changing component drives the machine head to move downward to the die-changing avoidance position, and the swing arm component rotates to the right-bending initial state; then the die-changing component drives the machine head to move so that the pipe fitting is switched from the left die position of the circular die to the right die position of the circular die, and then the right-bending guide die device and the right-bending clamping die body are switched to the ascending working state, and the swing arm is driven to rotate by the rotary drive device to realize the bending of the pipe fitting;

[0018] When switching from right-bend processing to left-bend processing, the right-bend clamping die body and the right-bend guide die device are first switched to the descending avoidance state, and the die-changing component drives the machine head to move downward to the die-changing avoidance position, and the swing arm component rotates to the left-bend initial state; then the die-changing component drives the machine head to move to move the pipe from the right side mold position of the circular mold to the left side mold position of the circular mold, and then the left-bend guide die device and the left-bend clamping die body are switched to the ascending working state, and the swing arm is driven to rotate by the rotary drive device to realize the bending of the pipe.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention drives the machine head to move by the die changing component to change the relative position of the pipe fitting and the round die, thereby realizing rapid switching of the bending direction without the need for die changing operation, greatly saving time and improving production efficiency.

[0021] 2. The present invention can quickly switch the bending direction of the pipe, has high processing flexibility, and is particularly suitable for some pipe fittings with complex bending shapes, and can well meet the production needs of complex-shaped pipe fittings in modern industry.

[0022] 3. The present invention integrates the left-bending and right-bending functions, thus avoiding the increase in production costs caused by purchasing multiple devices.

[0023] 4. The current pipe bending equipment can only bend in one direction with one layer of mold. For example, if the upper layer of mold is used for right bending, then only right bending can be performed. To perform left bending, the mold must be changed to another layer of mold. It is impossible to achieve right and left bending on the same layer of mold. The present invention can achieve left and right bending functions at the same time with one layer of mold, reducing the number of molds and the number of layers, and reducing mold costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a top view of the present invention.

[0025] Figure 2 It is an axonometric drawing of the present invention.

[0026] Figure 3 It is a schematic diagram of the present invention when performing right bending processing.

[0027] Figure 4 It is a schematic diagram of the present invention when performing left bending processing.

[0028] Figure 5 It is a structural schematic diagram of the mold changing parts.

[0029] Figure 6 It is a structural schematic diagram of the rotary drive device.

[0030] Figure 7 It is a cross-sectional view of the rotary drive device.

[0031] Figure 8 It is a structural schematic diagram of the left-bending guide mold device.

[0032] Fig. 9 It is a cross-sectional view of the left-bend guide die device.

[0033] Fig.10 It is a schematic diagram of the swing arm component when the left-bend clamping mold body is in an ascending working state and the right-bend clamping mold body is in a descending avoidance state.

[0034] Fig.11 It is a schematic diagram of the swing arm component in which the left-bend clamping mold body is in a descending avoidance state and the right-bend clamping mold body is in an ascending working state.

[0035] Fig.12 A cross-sectional view of the swing arm component.

[0036] In the figure: 1, frame, 2, feeding trolley, 3, mold changing component, 3-1, first linear module, 3-2, second linear module, 4, mounting base, 5, right-bend guide mold component, 6, left-bend guide mold component, 6-1, main body component, 6-2, first guide rail component, 6-3, sliding seat, 6-4, guide mold body, 6-5, second guide rail component, 6-6, guide mold clamping cylinder, 6-7, first connecting rod, 6-8, second connecting rod, 6-9, connector, 7, rotation drive device, 7-1, round mold rotation drive motor , 7-2, swing arm rotation drive motor, 7-3, connecting seat, 7-4, main shaft, 7-5, rotating outer ring, 7-6, driving gear, 7-7, driven gear, 7-8, bearing, 8, circular mold, 9, swing arm component, 9-1, swing arm component body, 9-2, left-bend clamping mold body, 9-3, right-bend clamping mold body, 9-4, left-bend clamping mold cylinder, 9-5, right-bend clamping mold cylinder, 9-6, connecting rod mechanism, 10, supporting device, 10-1, fixed bracket, 10-2, clamping claw, 11, lifting and avoiding drive device. DETAILED DESCRIPTION

[0037] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0038] Those skilled in the art should understand that, in the disclosure of the present invention, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0039] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0040] like Figures 1 to 10As shown, a left-right co-bending pipe bending machine with a single swing arm and double guide dies comprises a frame 1, on which a die changing component 3 is provided; a machine head is provided on the die changing component 3, and the machine head is driven to move in a horizontal or vertical direction by the die changing component 3; the machine head comprises a mounting base 4, on which a rotation driving device 7 is provided, and on which a round die 8 and a swing arm component 9 are provided, and the round die 8 and the swing arm component 9 are driven to rotate by the rotation driving device 7; left-bending guide die devices and right-bending guide die devices are respectively provided on both sides of the round die 8, and lifting and avoiding drive devices 11 are respectively provided between the left-bending guide die devices and the right-bending guide die devices and the mounting base 4; the swing arm component 9 comprises a left-bending clamping die body 9-2 and a right-bending clamping die body 9-3;

[0041] When the pipe is subjected to left bending, the left bending guide die device and the left bending clamp die body are in an ascending working state, the right bending clamp die body and the right bending guide die device are in a descending avoidance state, the pipe is clamped between the left bending clamp die body and the circular die 8, and the pipe is against the left bending guide die device;

[0042] When the pipe is subjected to right bending processing, the right bending guide die device and the right bending clamping die body are both in an ascending working state, the left bending clamping die body and the left bending guide die device are both in a descending avoidance state, the pipe is clamped between the right bending clamping die body and the circular die 8, and the pipe is abutted against the right bending guide die device.

[0043] The present invention can realize left-bending and right-bending processing of pipe fittings without changing the mold. Among them, the machine head is installed on the mold changing component 3, and the mold changing component 3 can drive the machine head to move in the vertical direction or the horizontal direction to realize the switching of the bending direction of the pipe. For example, when the pipe fitting is in the left bending processing, the pipe fitting is located at the left mold position of the circular mold 8. Through the movement of the machine head by the mold changing component 3, the pipe fitting can be moved from the left mold position of the circular mold 8 to the right mold position of the circular mold 8. When the pipe fitting reaches the right mold position of the circular mold 8, the pipe fitting can be processed to the right; through the above method, the switching of the bending direction of the pipe fitting is realized, so that the equipment has the functions of left bending and right bending at the same time; and if the traditional pipe bending machine wants to realize the switching of the bending direction of the pipe, it can only replace the mold (i.e., change the mold), and the mold change takes a long time, which reduces the production efficiency. The present invention drives the machine head to move by the mold changing component 3 to change the relative position of the pipe fitting and the circular mold 8, thereby realizing the rapid switching of the bending direction of the pipe, without the need for mold changing operation, greatly saving time and improving production efficiency. The invention can quickly switch the bending direction of the pipe, has high processing flexibility, and is particularly suitable for pipes with complex bending shapes, and can well meet the production needs of pipes with complex shapes in modern industry. The invention integrates left bending and right bending functions, avoiding the increase in production costs caused by purchasing multiple devices.

[0044] Among them, a lifting avoidance drive device 11 is respectively provided between the left-bend guide mold device and the right-bend guide mold device and the mounting base 4, and the lifting avoidance drive device 11 is used to drive the left-bend guide mold device and the right-bend guide mold device to move up and down, so as to realize the switching between the rising working position and the descending avoidance position of the left-bend guide mold device and the right-bend guide mold device. For example, when the pipe fitting is in the left-bend processing, the right-bend guide mold device is in the descending avoidance position. At this time, the highest point of the right-bend guide mold device is lower than the pipe fitting, thereby forming an avoidance for the pipe fitting to avoid interference with the right-bend guide mold device during the left-bend process. Similarly, when the pipe fitting is in the right-bend processing, the left-bend guide mold device is in the descending avoidance position and avoids the pipe fitting.

[0045] The left-bending clamping mold body 9-2 and the right-bending clamping mold body 9-3 on the swing arm component 9 can also switch between the rising working position and the falling avoidance position. When one of the clamping mold bodies is in the rising working position, the other clamping mold body is in the falling avoidance position. The highest point of the clamping mold body in the falling avoidance position is lower than the pipe fitting, so that the clamping mold body avoids the pipe fitting and prevents the pipe fitting from interfering with the clamping mold body during the bending process.

[0046] Specifically, the rotation drive device 7 includes a circular mold rotation drive motor 7-1, a swing arm rotation drive motor 7-2, a main shaft 7-4, and a rotating outer ring 7-5. The main shaft 7-4 is connected to the circular mold rotation drive motor 7-1, and the main shaft 7-4 passes through the middle of the rotating outer ring 7-5; a bearing 7-8 is provided between the main shaft 7-4 and the rotating outer ring 7-5; the circular mold 8 is arranged at the upper end of the main shaft 7-4; the swing arm rotation drive motor 7-2 is transmission-connected to the rotating outer ring 7-5; and the swing arm component 9 is connected to the rotating outer ring 7-5.

[0047] The round mold rotation drive motor 7-1 and the swing arm rotation drive motor 7-2 are both mounted on the connection seat 7-3, and the connection seat 7-3 is connected to the mounting base 4. The swing arm rotation drive motor 7-2 is connected with a driving gear 7-6, and the rotating outer ring 7-5 is connected with a driven gear 7-7, and the driving gear 7-6 is meshed with the driven gear 7-7 to achieve power transmission.

[0048] The round die 8 is driven to rotate by the round die rotation driving motor 7-1 alone, and the swing arm is driven to rotate by the swing arm rotation driving motor 7-2 alone, so that the swing arm and the round die 8 can rotate independently. When the round die 8 is driven to rotate, the round die rotation driving motor 7-1 directly drives the main shaft 7-4 to rotate and drives the round die 8 to rotate through the main shaft 7-4. When the swing arm component 9 is driven to rotate, the swing arm rotation driving motor 7-2 drives the driving gear 7-6 to rotate, and the driving gear 7-6 drives the driven gear 7-7 to rotate, thereby driving the rotating outer ring 7-5 and the swing arm component 9 to rotate.

[0049] The mold changing component 3 includes a first linear module 3-1 and a second linear module 3-2. The first linear module 3-1 is arranged on the frame 1, and the second linear module 3-2 is arranged on the first linear module 3-1. The first linear module 3-1 is arranged along the vertical direction, and the second linear module 3-2 is arranged along the horizontal direction. The mounting base 4 is arranged on the second linear module 3-2. Among them, the first linear module 3-1 is arranged along the vertical direction, and the second linear module 3-2 is arranged along the horizontal direction. Through the combination of the first linear module 3-1 and the second linear module 3-2, the machine head can be driven to move in the vertical and horizontal directions. In this embodiment, the first linear module 3-1 and the second linear module 3-2 both adopt the existing technology.

[0050] The left-bending guide die device and the right-bending guide die device have the same structure, the left-bending guide die component 6 includes a main body component 6-1, a guide die clamping cylinder 6-6, a sliding seat 6-3, a first connecting rod 6-7, and a second connecting rod 6-8. The main body component 6-1 is provided with a first guide rail component 6-2, the sliding seat 6-3 is slidably connected to the first guide rail component 6-2, the cylinder body of the guide die clamping cylinder 6-6 is rotatably connected to the main body component 6-1, one end of the first connecting rod 6-7 is rotatably connected to the main body component 6-1, the other end of the first connecting rod 6-7 is simultaneously rotatably connected to one end of the second connecting rod 6-8 and the front end of the piston rod on the guide die clamping cylinder 6-6, the cylinder body of the guide die clamping cylinder 6-6 is rotatably connected to the main body component 6-1; the other end of the second connecting rod 6-8 is rotatably connected to the main body component 6-1; a connecting body 6-9 is provided on the sliding seat 6-3, and the other end of the second connecting rod 6-8 is rotatably connected to the connecting body 6-9; a guide die body 6-4 is provided on the sliding seat 6-3.

[0051] The guide mold body 6-4 is clamped or loosened on the pipe fitting by the guide mold clamping cylinder 6-6. When the piston rod on the guide mold clamping cylinder 6-6 retracts inward, the connection point between the first connecting rod 6-7 and the second connecting rod 6-8 is forced to move downward, so that the angle between the first connecting rod 6-7 and the second connecting rod 6-8 becomes smaller, and the guide mold body 6-4 retreats, so that the guide mold body 6-4 loosens the pipe fitting; when the piston rod on the guide mold clamping cylinder 6-6 extends outward, the connection point between the first connecting rod 6-7 and the second connecting rod 6-8 is forced to move downward, so that the angle between the first connecting rod 6-7 and the second connecting rod 6-8 becomes larger, and the guide mold body 6-4 moves forward, so that the guide mold body 6-4 clamps the pipe fitting. A second guide rail component 6-5 is provided on the main body component 6-1, and the second guide rail component 6-5 is arranged along the vertical direction. The main body component 6-1 is slidably connected to the frame 1 through the second guide rail component 6-5. In this embodiment, the lifting and avoiding driving device 11 is a lifting cylinder, which is arranged along the vertical direction. The cylinder body of the lifting cylinder is fixedly connected to the mounting base 4, and the piston rod of the lifting cylinder is connected to the main body component 6-1.

[0052] Among them, the guide mold clamping cylinder 6-6 in the present invention is composed of two cylinder units with different strokes combined in series, and the tails of the cylinder bodies of the two cylinder units are connected together by screws to form a whole. The two cylinder units can operate independently, and when the piston rod of the cylinder unit with a smaller stroke is retracted, the guide mold body can be half-retracted. When the piston rods of the two cylinder units are retracted at the same time, the guide mold body can be fully retracted. In actual use, it is possible to flexibly choose whether the guide mold body is half-retracted or fully retracted according to different situations to improve the efficiency of pipe bending. For example, when it is necessary to change the mold to avoid, the guide mold body can be in a fully retracted state. If the guide mold body is only demolding and the next bend is needed immediately, the guide mold body only needs to be half-retracted.

[0053] like Figure 10-Figure 1 As shown, the specific structure of the swing arm component 9 includes a swing arm component body 9-1, a left-bend clamping mold body 9-2, a right-bend clamping mold body 9-3, a left-bend clamping mold cylinder 9-4, and a right-bend clamping mold cylinder 9-5. The left-bend clamping mold body 9-2, the right-bend clamping mold body 9-3, the left-bend clamping mold cylinder 9-4, and the right-bend clamping mold cylinder 9-5 are all arranged on the swing arm component body 9-1. The left-bend clamping mold cylinder 9-4 is connected to the left-bend clamping mold body 9-2 through a connecting rod mechanism 9-6, and the right-bend clamping mold cylinder 9-5 is connected to the left-bend clamping mold body 9-3 through a connecting rod mechanism 9-6. The left-bend clamping mold body 9-2 is driven to move independently by the left-bend clamping mold cylinder 9-4 and the connecting rod mechanism 9-6, so as to drive the left-bend clamping mold body 9-2 to switch between the rising working position and the falling avoidance position. The right bending mold clamping cylinder 9-5 and the connecting rod mechanism 9-6 drive the right bending mold clamping body 9-3 to move independently, so as to drive the right bending mold clamping body 9-3 to switch between the rising working position and the falling avoidance position.

[0054] Furthermore, a supporting device 10 is provided on the frame 1, and the supporting device 10 includes a fixed bracket 10-1 installed on the frame 1, and a clamping claw 10-2 for clamping the pipe fitting is provided on the fixed bracket 10-1. When the equipment switches the bending direction, the machine head will lose the clamping support for the pipe fitting. At this time, the pipe fitting can be clamped by the clamping claw 10-2, thereby supporting the pipe fitting to reduce the sagging bending of the pipe fitting; when the equipment completes the switching of the bending direction, the clamping claw 10-2 releases the pipe fitting. Among them, the clamping claw 10-2 can be a cylinder clamping claw 10-2.

[0055] A feeding trolley 2 is also provided on the frame 1, and the feeding trolley 2 is used to clamp the pipe fittings and realize the forward feeding of the pipe fittings. The feeding trolley 2 is a conventional component on the pipe bending machine, so it will not be described in detail here.

[0056] A method for using a left-right co-bending pipe bender with a single swing arm and double guide dies, the specific method is as follows:

[0057] When the pipe fitting is subjected to left bending processing, the swing arm component 9 is in the initial state of left bending, at which time the swing arm component 9 is close to the left bending guide die device, the left bending guide die device and the left bending clamping die body are in the ascending working state, the right bending clamping die body and the right bending guide die device are in the descending avoidance state, the pipe fitting is clamped between the left bending clamping die body and the circular die 8, and the pipe fitting abuts against the guide die body 6-4 on the left bending guide die device; the swing arm is driven to rotate by the rotary drive device 7 to realize the bending of the pipe fitting; when the pipe fitting is subjected to right bending processing, the swing arm component 9 is in the initial state of right bending, at which time the swing arm component 9 is close to the right bending guide die device, the right bending guide die device and the right bending clamping die body are in the ascending working state, the left bending clamping die body and the left bending guide die device are in the descending avoidance state, the pipe fitting is clamped between the right bending clamping die body and the circular die 8, and the pipe fitting abuts against the guide die body 6-4 on the right bending guide die device; the swing arm is driven to rotate by the rotary drive device 7 to realize the bending of the pipe fitting;

[0058] When switching from left-bending processing to right-bending processing, the left-bending clamping die body and the left-bending guide die device are first switched to the descending avoidance state, and the die-changing component 3 drives the machine head to move downward to the die-changing avoidance position, and the swing arm component 9 rotates to the right-bending initial state; then the die-changing component 3 drives the machine head to move so that the pipe fitting is switched from the left die position of the circular die 8 to the right die position of the circular die 8, and then the right-bending guide die device and the right-bending clamping die body are switched to the ascending working state, and the swing arm is driven to rotate by the rotary drive device 7 to realize the bending of the pipe fitting;

[0059] When switching from right bending to left bending, the right bending clamping die body and the right bending guide die device are first switched to the descending avoidance state, and the die changing component 3 drives the machine head to move downward to the die changing avoidance position, and the swing arm component 9 rotates to the left bending initial state; then the die changing component 3 drives the machine head to move to move the pipe fitting from the right side mold position of the circular mold 8 to the left side mold position of the circular mold 8, and then the left bending guide die device and the left bending clamping die body are switched to the ascending working state, and the swing arm is driven to rotate by the rotary drive device 7 to realize the bending of the pipe fitting.

[0060] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present invention.

Claims

1. A single swing arm, double guide die left and right co-bending pipe bender, characterized in that: The machine comprises a frame, on which a mold changing component is arranged; the mold changing component is provided with a machine head, and the machine head is driven to move in a horizontal or vertical direction by the mold changing component; the machine head comprises a mounting base, on which a rotation driving device is arranged, and the rotation driving device is provided with a circular mold and a swing arm component, and the circular mold and the swing arm component are driven to rotate by the rotation driving device; A left-bend guide mold device and a right-bend guide mold device are respectively provided on both sides of the circular mold, and a lifting and avoiding driving device is respectively provided between the left-bend guide mold device and the right-bend guide mold device and the mounting base; the swing arm component includes a left-bend clamping mold body and a right-bend clamping mold body; When the pipe is subjected to left bending, the left bending guide die device and the left bending clamp die body are in an ascending working state, the right bending clamp die body and the right bending guide die device are both in a descending avoidance state, the pipe is clamped between the left bending clamp die body and the round die, and the pipe is against the left bending guide die device; When the pipe is bent right, the right bend guide die device and the right bend clamp die body are in an ascending working state, the left bend clamp die body and the left bend guide die device are in a descending avoidance state, the pipe is clamped between the right bend clamp die body and the circular die, and the pipe is abutted against the right bend guide die device.

2. A single swing arm, double guide die left and right co-bending pipe bender according to claim 1, characterized in that: The rotation drive device includes a circular mold rotation drive motor, a swing arm rotation drive motor, a main shaft, and a rotating outer ring. The main shaft is connected to the circular mold rotation drive motor, and the main shaft passes through the middle of the rotating outer ring. A bearing is provided between the main shaft and the rotating outer ring. The circular mold is arranged at the upper end of the main shaft. The swing arm rotation drive motor is transmission-connected to the rotating outer ring. The swing arm component is connected to the rotating outer ring.

3. A single swing arm, double guide die left and right co-bending pipe bender according to claim 1, characterized in that: The mold changing component includes a first linear module and a second linear module. The first linear module is arranged on the frame, and the second linear module is arranged on the first linear module. The first linear module is arranged along the vertical direction, and the second linear module is arranged along the horizontal direction; the mounting base is arranged on the second linear module.

4. A single swing arm, double guide die left and right co-bending pipe bender according to claim 1, characterized in that: The frame is provided with a supporting device, which comprises a fixed bracket installed on the frame, and the fixed bracket is provided with a clamping claw for clamping the pipe fitting.

5. The left-right co-bending pipe bender with a single swing arm and double guide dies according to claim 1, characterized in that: The left-bending guide die device and the right-bending guide die device have the same structure. The left-bending guide die component includes a main body component, a guide die clamping cylinder, a sliding seat, a first connecting rod, and a second connecting rod. The main body component is provided with a first guide rail component, and the sliding seat is slidably connected to the first guide rail component. The cylinder body of the guide die clamping cylinder is rotatably connected to the main body component, one end of the first connecting rod is rotatably connected to the main body component, and the other end of the first connecting rod is simultaneously rotatably connected to one end of the second connecting rod and the front end of the piston rod on the guide die clamping cylinder, the cylinder body of the guide die clamping cylinder is rotatably connected to the main body component; the other end of the second connecting rod is rotatably connected to the main body component; a connecting body is provided on the sliding seat, and the other end of the second connecting rod is rotatably connected to the connecting body; a guide die body is provided on the sliding seat.

6. A single swing arm, double guide die left and right co-bending pipe bender according to claim 5, characterized in that: The body component is provided with a second guide rail component, which is arranged along the vertical direction, and the body component is slidably connected with the frame through the second guide rail component.

7. A single swing arm, double guide die left and right co-bending pipe bender according to claim 5, characterized in that: The lifting and avoiding driving device is a lifting cylinder, which is arranged along the vertical direction, the cylinder body of the lifting cylinder is fixedly connected to the mounting base, and the piston rod of the lifting cylinder is connected to the main body component.

8. A method for using a left-right co-bending pipe bender with a single swing arm and double guide dies, based on the left-right co-bending pipe bender with a single swing arm and double guide dies as claimed in claim 5, characterized in that: The specific method is as follows: When the pipe is subjected to left bending, the swing arm component is in the initial state of left bending, at which time the swing arm component is close to the left bending guide die device, the left bending guide die device and the left bending clamping die body are in the ascending working state, the right bending clamping die body and the right bending guide die device are in the descending avoidance state, the pipe is clamped between the left bending clamping die body and the circular die, and the pipe is against the guide die body on the left bending guide die device; the swing arm is driven to rotate by the rotary drive device to realize the bending of the pipe; When the pipe is bent right, the swing arm component is in the initial state of right bending, at which time the swing arm component is close to the right bending guide die device, the right bending guide die device and the right bending clamping die body are in the ascending working state, the left bending clamping die body and the left bending guide die device are in the descending avoidance state, the pipe is clamped between the right bending clamping die body and the circular die, and the pipe is against the guide die body on the right bending guide die device; the swing arm is driven to rotate by the rotary drive device to realize the bending of the pipe; When switching from left-bending processing to right-bending processing, the left-bending clamping die body and the left-bending guide die device are first switched to the descending avoidance state, and the die-changing component drives the machine head to move downward to the die-changing avoidance position, and the swing arm component rotates to the right-bending initial state; then the die-changing component drives the machine head to move so that the pipe fitting is switched from the left die position of the circular die to the right die position of the circular die, and then the right-bending guide die device and the right-bending clamping die body are switched to the ascending working state, and the swing arm is driven to rotate by the rotary drive device to realize the bending of the pipe fitting; When switching from right-bend processing to left-bend processing, the right-bend clamping die body and the right-bend guide die device are first switched to the descending avoidance state, and the die-changing component drives the machine head to move downward to the die-changing avoidance position, and the swing arm component rotates to the left-bend initial state; then the die-changing component drives the machine head to move to move the pipe from the right side mold position of the circular mold to the left side mold position of the circular mold, and then the left-bend guide die device and the left-bend clamping die body are switched to the ascending working state, and the swing arm is driven to rotate by the rotary drive device to realize the bending of the pipe.

Images