Pipe flaring forming machine and machining method thereof

Abstract

The invention relates to a pipe flaring forming machine, and relates to the technical field of pipe machining. The pipe flaring forming machine comprises a machine body, the top of the machine body is provided with a flaring mold core and a lifting piece, the lifting piece is used for driving the flaring mold core to ascend and descend, the bottom of the machine body is further provided with a clamping mechanism, the clamping mechanism comprises a plurality of clamping frames and a synchronous driving assembly, the top of each clamping frame is provided with a clamping part, and the synchronous driving assembly is used for driving the clamping frames to ascend and descend. The synchronous driving assembly is used for driving the multiple clamping frames to be away from or close to each other at the same time, so that the clamping part on each clamping frame abuts against the inner side wall of the bottom of the pipe. The flaring die core has the effect that the probability that the axis of a clamped pipe and the axis of the flaring die core deviate too much is reduced.

Description

Technical Field

[0001] This application relates to the field of pipe processing technology, and in particular to a pipe flaring forming machine and its processing method. Background Technology

[0002] Pipes, as a type of hollow strip material, can be made of various materials and are mainly used to transport liquids and gases, thus playing an important role in industry and daily life. Flaring machines (also known as flaring machines), as devices that flare pipes by driving a flaring die, can perform flaring processing on the ends of pipes, thereby expanding the application range of pipes and thus playing an important role.

[0003] An existing pipe flaring forming machine includes a machine body, on which a drive unit, a flaring die, several clamping frames, and several clamping components are mounted. The drive unit is located at the top of the machine body and drives the flaring die to move up and down, so that the bottom of the flaring die extends into the top of the pipe, thereby deforming the top of the pipe through compression and flaring. Each clamping frame is located below the flaring die and is positioned around the outer perimeter of the bottom of the pipe. Each clamping frame is slidably connected to the machine body. Clamping components are correspondingly arranged with the clamping frames and are used to drive the corresponding clamping frames to slide, thereby clamping the bottom of the pipe. In use, the pipe is placed on the machine body, and the clamping components drive the corresponding clamping frames to slide, thereby clamping and fixing the bottom of the pipe. Then, the drive unit moves the flaring die downwards, so that the bottom of the flaring die extends into the top of the pipe, thereby deforming the top of the pipe through compression and flaring.

[0004] Regarding the aforementioned technologies, since the clamping frames in the existing technology are set around the outer perimeter of the pipe to clamp and fix the outer side of the pipe, and each clamping frame is driven by a separate clamping component, it is easy for the sliding of several clamping frames to be difficult to synchronize. This results in the axis of the pipe being offset too much from the axis of the flaring mold core after clamping, thereby reducing the flaring effect on the pipe. Therefore, improvements are needed. Summary of the Invention

[0005] To reduce the probability of excessive misalignment between the axis of the clamped pipe and the axis of the flaring die, this application provides a pipe flaring forming machine and its processing method.

[0006] Firstly, this application provides a pipe flaring forming machine, which adopts the following technical solution: A pipe flaring forming machine includes a machine body. A flaring mold core and a lifting component are provided on the top of the machine body. The lifting component is used to drive the flaring mold core to rise and fall. A clamping mechanism is also provided at the bottom of the machine body. The clamping mechanism includes a plurality of clamping frames and a synchronous drive assembly. Each clamping frame has a clamping part on its top. The synchronous drive assembly is used to drive the plurality of clamping frames to move away from or towards each other at the same time, so that the clamping part on each clamping frame abuts against the inner sidewall of the bottom of the pipe.

[0007] By adopting the above technical solution, compared with the prior art where each clamping frame is driven by a single clamping component and clamps and fixes the outer side of the pipe, it is easy for the sliding of several clamping frames to be difficult to synchronize, resulting in excessive deviation between the axis of the pipe and the axis of the flaring die after clamping, thus reducing the flaring effect of the pipe; this application, through the setting of the clamping mechanism, enables the synchronous drive component to drive several clamping frames to move away or closer at the same time, so that the clamping parts on several clamping frames can abut against the inner sidewall of the bottom of the pipe, thereby clamping and fixing the pipe, effectively ensuring the synchronization between several clamping frames, so that the axis of the pipe after clamping can be consistent with the axis of the flaring die, thereby reducing the probability of excessive deviation between the axis of the pipe and the axis of the flaring die after clamping, ensuring the flaring effect of the pipe and the use effect of this application.

[0008] Preferably, the synchronous drive assembly includes a lifting frame, a lifting component, and a synchronizing component. The lifting frame is slidably connected to the machine body, and the sliding direction is the same as the lifting direction of the flared mold core. The lifting component is used to drive the lifting frame to slide. Each of the clamping frames is disposed on the lifting frame. The synchronizing component is used to drive each of the clamping frames to move simultaneously.

[0009] By adopting the above technical solution and setting the synchronous drive component, the lifting component can drive the lifting frame to move upward, thereby allowing the pipe to move together with the lifting frame. This allows the top of the pipe to approach the upper flaring die core, effectively reducing the length of displacement required for the flaring die core. This also facilitates the setting of the drive component and the subsequent separation of the pipe from the flaring die core.

[0010] Preferably, the machine body is also provided with a stripping mechanism, which includes a stripping frame located below the flaring die core and on the displacement path of the tube when it is lifted together with the lifting frame.

[0011] By adopting the above technical solution and setting the stripping mechanism, after the flaring is completed, when the lifting frame rises, the lifting frame can drive the pipe to move upward together, so that the top of the pipe abuts against the bottom of the stripping frame, thereby separating the pipe from the flaring die core, thus realizing the separation between the flaring die core and the pipe, which effectively facilitates the operation of the staff.

[0012] Preferably, the stripper frame is slidably connected to the machine body, and the sliding direction is the same as the sliding direction of the flared die core. A buffer spring is also provided above the stripper frame, with the top end of the buffer spring abutting against the machine body and the bottom end abutting against the top end of the stripper frame.

[0013] By adopting the above technical solution and setting the buffer spring, the buffer spring can buffer the top of the stripper rack and the pipe, thereby effectively reducing the probability of excessive collision between the stripper rack and the top of the pipe, thus effectively ensuring the integrity of the pipe and ensuring the processing quality of the pipe.

[0014] Preferably, the stripper frame is slidably connected to the machine body, and the sliding direction is the same as the sliding direction of the flared die core. The stripper mechanism also includes a reversing gear and two reversing racks. One of the reversing racks is connected to the stripper frame, and the other reversing rack is connected to the lifting frame. The reversing gear is located between the two reversing racks and meshes with both reversing racks.

[0015] By adopting the above technical solution, the reversing gear and reversing rack are configured so that when the lifting frame is raised or lowered, the lifting frame can drive the unloading frame to slide through the reversing gear and reversing rack, and the sliding direction of the unloading frame is opposite to the moving direction of the lifting frame. This effectively reduces the distance that the lifting frame needs to move, thereby saving the reserved displacement space and facilitating the setup by the staff.

[0016] Preferably, the bottom of the stripping frame is also provided with an opening for the bottom of the flaring die core to pass through. The stripping frame is also provided with an abutment frame and a linkage frame. The abutment frame is slidably connected to the stripping frame and is used to be located on the displacement path of the tube moving together with the lifting frame after sliding. One end of the linkage frame is rotatably connected to the machine body and the other end is rotatably connected to the abutment frame.

[0017] By adopting the above technical solution, the setting of the abutment frame and the linkage frame ensures that after the flaring is completed, the pipe needs to be separated from the flaring die core. When the stripper slides downward, the stripper can drive the abutment frame to slide relative to itself through the linkage frame. This allows the abutment frame to gradually approach the flaring die core and be positioned on the displacement path of the pipe along with the lifting frame. This replaces the stripper frame in abutting against the top of the pipe, achieving the separation of the pipe from the flaring die core. The presence of the abutment frame and the linkage frame allows the opening at the bottom of the pusher frame to be larger than the bottom of the flaring die core, thus allowing the bottom of flaring die cores of different sizes to pass through, effectively ensuring the applicability of the stripper frame.

[0018] Preferably, the synchronizing element includes several synchronizing frames, each of the clamping frames being slidably connected to the lifting frame, and the sliding direction of each frame being close to the axis of the flared mold core. The synchronizing frames correspond to the clamping frames, and one end of each synchronizing frame is used to rotate relative to the machine body, while the other end is rotatably connected to the corresponding clamping frame.

[0019] By adopting the above technical solution and setting the synchronization frame, when the lifting frame slides, the lifting frame can drive the corresponding clamping frame to slide relative to itself through the synchronization frame, thereby realizing the driving of the corresponding clamping frame. This effectively realizes the linkage between each clamping frame and the lifting frame, thus eliminating the need to set up additional active devices, effectively saving the space required for setting up, reducing the overall weight of the lifting frame, and reducing the load on the driving components.

[0020] Preferably, the synchronous drive assembly further includes a clearance component and a plurality of clearance frames, wherein the clearance frames are arranged in a one-to-one correspondence with the synchronous frames, each clearance frame is slidably connected to the machine body, and the sliding direction is parallel to the sliding direction of the lifting frame, and the end of each synchronous frame away from the corresponding clamping frame is rotatably connected to the corresponding clearance frame, and the clearance component is used to drive the plurality of clearance frames to slide simultaneously.

[0021] By adopting the above technical solution, the arrangement of the relief component and several relief frames ensures that when the pipe needs to be moved upward after the flaring is completed, the relief component can cause the relief frame to slide upward, thereby keeping the state of the clamping frame relative to the lifting frame unchanged, and thus ensuring that the clamping frame maintains its clamping effect on the pipe, effectively guaranteeing the clamping effect on the pipe.

[0022] Preferably, the clearance component includes a clearance cylinder, which is rotatably connected to the machine body. The clearance cylinder has a plurality of spiral grooves on its side wall, and the spiral grooves are arranged in the same direction. The bottom of each clearance frame extends into the corresponding spiral groove and abuts against the inner wall of the corresponding spiral groove.

[0023] By adopting the above technical solution, the setting of the relief cylinder allows the bottom of the relief frame to rotate by abutting against the inner wall of the spiral groove when the relief frame slides. This causes the relief cylinder to rotate, and the spiral grooves on the relief cylinder to synchronize the sliding of several relief frames. This allows the relief frames to slide simultaneously, in the same direction, and in the same state, thereby ensuring the clamping effect on the pipe and the flaring effect on the pipe.

[0024] On the other hand, this application also provides a processing method for a pipe flaring forming machine, comprising the following steps: Pipe placement: Place the pipes on the machine body; Pipe clamping: Each clamping frame is driven to slide by the synchronous drive component, so that the clamping part on the clamping frame abuts against the bottom inner wall of the pipe, thereby clamping and fixing the pipe. Pipe flaring: The flaring die core is driven down by the lifting component, and the bottom end of the flaring die core is inserted into the top of the pipe to flare the top of the pipe. Pipe Removal: After flaring is completed, the lifting mechanism drives the flaring mold core to rise, thereby separating the flaring mold core from the pipe, allowing the workers to remove the flared pipe.

[0025] In summary, this application includes at least one of the following beneficial technical effects: The clamping mechanism is designed so that the synchronous drive assembly can drive several clamping frames to move away from or towards each other simultaneously, so that the clamping parts on several clamping frames can abut against the inner sidewall of the bottom of the pipe, thereby clamping and fixing the pipe. This effectively ensures the synchronization between the clamping frames, so that the axis of the pipe after clamping can be kept consistent with the axis of the flaring die core. This reduces the probability of excessive deviation between the axis of the pipe after clamping and the axis of the flaring die core, ensuring the flaring effect of the pipe and the application effect of this application. The design of the abutment frame and the linkage frame ensures that after flaring, the pipe needs to be separated from the flaring die core. When the stripper slides downward, the stripper can drive the abutment frame to slide relative to itself through the linkage frame. This allows the abutment frame to gradually approach the flaring die core and be positioned on the displacement path of the pipe along with the lifting frame. In this way, it replaces the stripper frame in abutting against the top of the pipe, achieving the separation of the pipe from the flaring die core. The presence of the abutment frame and the linkage frame allows the opening at the bottom of the pusher frame to be larger than the bottom of the flaring die core, thus allowing the bottom of flaring die cores of different sizes to pass through, effectively ensuring the applicability of the stripper frame. The synchronous frame allows the lifting frame to slide relative to itself when it slides, thereby driving the corresponding clamping frame. This effectively achieves linkage between each clamping frame and the lifting frame, eliminating the need for additional active devices, saving space, reducing the overall weight of the lifting frame, and lowering the load on the drive components. Attached Figure Description

[0026] Figure 1 This is a schematic diagram illustrating the overall structure of the pipe flaring forming machine in Embodiment 1 of this application.

[0027] Figure 2 This is a schematic diagram illustrating the structure of the lifting frame in Embodiment 1 of this application.

[0028] Figure 3 This is a schematic diagram illustrating the structure of the clamping frame in Embodiment 1 of this application.

[0029] Figure 4 This is a schematic diagram illustrating the overall structure of the pipe flaring forming machine in Embodiment 2 of this application.

[0030] Figure 5 This is a schematic diagram illustrating the structure of the relief tube in Embodiment 2 of this application.

[0031] Figure 6 This is a schematic diagram illustrating the structure of the synchronization frame in Embodiment 2 of this application.

[0032] Figure 7 This is a schematic diagram illustrating the structure of the abutment frame in Embodiment 2 of this application.

[0033] Explanation of reference numerals in the attached drawings: 1. Machine body; 11. Guide tube; 2. Flared mold core; 3. Lifting component; 4. Clamping mechanism; 41. Clamping frame; 411. Clamping part; 42. Synchronous drive assembly; 421. Lifting frame; 422. Lifting component; 423. Synchronizing component; 4231. Synchronizing frame; 424. Clearing component; 4241. Clearing cylinder; 425. Clearing frame; 4251. Addition part; 426. Torsion spring; 5. Unloading mechanism; 51. Setting frame; 52. Unloading frame; 521. Sliding part; 53. Buffer spring; 54. Reversing gear; 55. Reversing rack; 6. Spiral groove; 7. Abutment frame; 8. Linkage frame. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0035] Example 1

[0036] Embodiment 1 of this application discloses a pipe flaring forming machine. (Refer to...) Figure 1 and Figure 2 The pipe flaring forming machine includes a machine body 1. A flaring die core 2 and a lifting component 3 are mounted on the top of the machine body 1. The lifting component 3 drives the flaring die core 2 to rise and fall. A clamping mechanism 4 is also mounted on the bottom of the machine body 1. The clamping mechanism 4 includes several clamping frames 41 and a synchronous drive assembly 42. Each clamping frame 41 has a clamping part 411 on its top. The synchronous drive assembly 42 drives several clamping frames 41 to move away from or towards each other simultaneously, so that the clamping part 411 on each clamping frame 41 abuts against the inner wall of the bottom of the pipe.

[0037] Reference Figure 1 and Figure 2 In this embodiment, the lifting component 3 is set as an electric cylinder. The electric cylinder is fixedly installed on the top of the machine body 1 and the piston rod is set vertically downward and fixedly connected to the top of the flaring mold core 2, thereby driving the flaring mold core 2 to lift. The electric cylinder has the characteristics of controllable pressure, controllable stroke and precise coaxiality, which can improve the product yield by setting preset parameters.

[0038] Reference Figure 1 and Figure 2 The machine body 1 is also provided with a guide tube 11. The top of the guide tube 11 is fixedly connected to the machine body 1 and is coaxially arranged with the flaring mold core 2. The guide tube 11 is sleeved on the flaring mold core 2, and the inner side wall is in contact with the outer wall of the flaring mold core 2, thereby guiding the sliding of the flaring mold core 2.

[0039] Reference Figure 1 and Figure 2 The machine body 1 is also equipped with a stripping mechanism 5, which includes a mounting frame 51 and a stripping frame 52. The mounting frame 51 is sleeved on the bottom end of the guide tube 11 and is fixedly connected to the machine body 1. The stripping frame 52 is located on the lower side of the guide tube 11, and has several sliding parts 521 on its top. Each sliding part 521 is integrally formed with the stripping frame 52, and passes vertically upward through the mounting frame 51 and is slidably connected to the mounting frame 51.

[0040] Reference Figure 1 and Figure 2 Each stripper frame 52 has an opening at its bottom end, allowing the bottom end of the flared mold core 2 inside the guide tube 11 to pass downwards. Each sliding part 521 is fitted with a buffer spring 53, which is located between the mounting frame 51 and the stripper frame 52. The top end of each buffer spring 53 abuts against the bottom of the mounting frame 51, and the bottom end abuts against the top end of the stripper frame 52, thereby achieving a buffering effect on the stripper frame 52.

[0041] Reference Figure 1 , Figure 2 and Figure 3The synchronous drive assembly 42 includes a lifting frame 421, a lifting element 422, and a synchronizing element 423. In this embodiment, the lifting element 422 is configured as an electric push rod, which is fixedly installed at the bottom of the machine body 1, with its piston rod vertically upward and fixedly connected to the bottom of the lifting frame 421. In this embodiment, the number of clamping frames 41 is set to four. All four clamping frames 41 are disposed on the lifting frame 421 and are slidably connected to the top of the lifting frame 421 through sliding grooves. The straight line of the sliding direction intersects the axis of the flaring die core 2. The four clamping frames 41 are located around the tube and are distributed at equal angles around the circumference of the axis of the flaring die core 2.

[0042] Reference Figure 2 and Figure 3 Each clamping part 411 is integrally formed with the corresponding clamping frame 41 and is used to abut against the inner sidewall of the bottom of the pipe, thereby clamping and fixing the pipe. In this embodiment, the synchronizing element 423 is configured as an electric push rod, a frame, and four synchronizing rods. The electric push rod is installed inside the lifting frame 421, and the piston rod is set vertically upward and fixedly connected to the frame. The frame is located inside the lifting frame 421 and is slidably connected to the lifting frame 421, and the sliding direction is vertical.

[0043] Reference Figure 2 and Figure 3 Each of the synchronizing rods is configured to correspond one-to-one with the clamping frame 41. One end of each synchronizing rod is rotatably connected to the frame body via a pin, and the other end is rotatably connected to the corresponding clamping frame 41 via a pin. This allows the frame body to slide simultaneously when the electric push rod drives the frame body to slide, and the frame body can drive each clamping frame 41 to slide simultaneously via several synchronizing rods, thus achieving simultaneous driving of the clamping frame 41.

[0044] The implementation principle of a pipe flaring forming machine according to Embodiment 1 of this application is as follows: When it is necessary to flare the pipe, the pipe is placed on the lifting frame 421, and the clamping part 411 on each clamping frame 41 is located in the cavity of the pipe. Then, the synchronous drive assembly 42 drives each clamping frame 41 to slide, so that the clamping part 411 on the clamping frame 41 abuts against the bottom inner wall of the pipe, thereby clamping and fixing the pipe. After that, the lifting member 422 drives the lifting frame 421 to move upward. Then, the lifting member 3 drives the flaring mold core 2 to descend, and the bottom end of the flaring mold core 2 is inserted into the top of the pipe to flare the top of the pipe.

[0045] After flaring, the lifting component 422 drives the lifting frame 421 to move upward, and simultaneously the lifting component 3 drives the flaring die core 2 to move upward, so that the top of the pipe abuts against the stripper frame 52, causing the stripper frame 52 to push the pipe away from the flaring die core 2. After separation, the lifting component 422 drives the lifting frame 421 to move downward, causing the pipe to separate from the stripper frame 52, allowing the worker to remove the flared pipe.

[0046] Embodiment 1 of this application also provides a processing method for a pipe flaring forming machine, including the following steps: S1. Pipe placement: Place the pipe on the lifting frame 421, and ensure that the clamping part 411 on each clamping frame 41 is located in the cavity of the pipe. S2, Pipe clamping: The synchronous drive assembly 42 drives each clamping frame 41 to slide, so that the clamping part 411 on the clamping frame 41 abuts against the bottom inner wall of the pipe, thereby clamping and fixing the pipe. S3, Pipe flaring: Lifting component 422 drives lifting frame 421 to move upward. After that, lifting component 3 drives flaring mold core 2 to descend, so that the bottom end of flaring mold core 2 is inserted into the top of the pipe to flare the top of the pipe. S4. Pipe separation: After the flaring is completed, the lifting component 422 drives the lifting frame 421 to move upward, and at the same time the lifting component 3 drives the flaring mold core 2 to move upward, so that the top of the pipe abuts against the stripper frame 52, thereby causing the stripper frame 52 to push the pipe to separate from the flaring mold core 2. S5. Pipe Removal: After separation, the lifting component 422 drives the lifting frame 421 to move downward, so that the pipe is separated from the unloading frame 52. After that, the staff removes the flared pipe.

[0047] Example 2

[0048] The difference between Embodiment 2 and Embodiment 1 in this application is that: (Refer to...) Figure 4 , Figure 5 and Figure 6 The ends of several clamping frames 41 that are far apart from each other extend out of the unloading frame 52. The synchronizing element 423 includes several synchronizing frames 4231. In this embodiment, the number of synchronizing frames 4231 is set to four, and they are arranged one-to-one with the four clamping frames 41. The synchronizing drive assembly 42 also includes a clearance element 424 and several clearance frames 425. The clearance element 424 includes a clearance cylinder 4241.

[0049] Reference Figure 1 and Figure 5The relief cylinder 4241 is rotatably connected to the machine body 1 via a bearing. The bottom center of the relief cylinder 4241 has an opening for the lifting member 422 to pass through. A torsion spring 426 is also provided at the bottom of the relief cylinder 4241. The torsion spring 426 is sleeved on the bottom of the relief cylinder 4241, with one end abutting against the relief cylinder 4241 and the other end abutting against the machine body 1, so that the relief cylinder 4241 can return to its initial position by its own elastic force.

[0050] Reference Figure 5 and Figure 6 The side wall of the relief cylinder 4241 is also provided with several spiral grooves 6. In this embodiment, the number of spiral grooves 6 and relief brackets 425 are both set to four, corresponding to the four synchronization brackets 4231. The spiral grooves 6 are all spirally arranged, and their axes are all the axis of the relief cylinder 4241, and the spiral directions are the same.

[0051] Reference Figure 4 , Figure 5 and Figure 6 Each clearance frame 425 is slidably connected to the machine body 1 via a sliding groove, and the sliding direction is vertical. Each clearance frame 425 has an extension part 4251 extending from its side end. Each extension part 4251 is integrally formed with the corresponding clearance frame 425, and is cylindrical. Each extension part 4251 extends into the corresponding spiral groove 6 and abuts against the inner wall of the corresponding spiral groove 6.

[0052] Reference Figure 6 Each timing frame 4231 has one end rotatably connected to the corresponding clearance frame 425 via a pin, and the other end is inclined upward and rotatably connected to the corresponding clamping frame 41 via a pin, so as to drive the clamping frame 41.

[0053] Reference Figure 4 , Figure 5 and Figure 6 In the initial state, when the lifting frame 421 has not slid upwards, each yielding frame 425 is located at the bottom of its own sliding path. At this time, several clamping frames 41 are close to each other, and the setting part on each yielding frame 425 is located at the bottom of the corresponding spiral groove 6. When the pipe is placed on the lifting frame 421 and the lifting frame 421 slides upwards, the clamping part 411 on the clamping frame 41 is not abutting against the inner wall of the pipe. At this time, the synchronizing frame 4231 maintains its own position, so that the lifting frame 421 drives the corresponding clamping frame 41 to slide through the synchronizing frame 4231, and the clamping part 411 on the clamping frame 41 approaches the inner wall of the pipe and finally abuts against the inner wall of the pipe.

[0054] Reference Figure 4 , Figure 5 and Figure 6Subsequently, when it is necessary to continue driving the lifting frame 421 to slide upward, the clamping frame 41 continuously abuts against the inner wall of the pipe, thereby hindering the sliding of the clamping frame 41 relative to the lifting frame 421. At this time, the lifting frame 421 pulls the corresponding relief frame 425 upward through the synchronization frame 4231. During this process, the setting part on each relief frame 425 abuts against the inner wall of the corresponding spiral groove 6, thereby pushing the relief cylinder 4241 to overcome the elastic force of the torsion spring 426 and rotate.

[0055] Reference Figure 4 , Figure 5 and Figure 7 The unloading mechanism 5 also includes a reversing gear 54 and two reversing racks 55. One reversing rack 55 is fixedly connected to the unloading frame 52, and the other reversing rack 55 is fixedly connected to the lifting frame 421. The reversing gear 54 is located between the two reversing racks 55 and is rotatably connected to the mounting frame 51 via a pin. The reversing gear 54 meshes with the two reversing racks 55 to enable transmission between the two reversing racks 55, thereby causing the lifting frame 421 to drive the unloading frame 52 to slide in the opposite direction.

[0056] Reference Figure 5 and Figure 7 In this embodiment, the opening through the bottom of the stripper 52 is larger than the bottom of the flared die core 2, so as to accommodate flared die cores 2 of different specifications and allow flared die cores 2 of different specifications to pass through. The stripper 52 is also provided with abutment frame 7 and linkage frame 8, and the number of abutment frame 7 and linkage frame 8 is set to two, and they are arranged in a one-to-one correspondence.

[0057] Reference Figure 5 and Figure 7 Two abutment frames 7 are located on opposite sides of the bottom opening of the unloading rack 52, and are slidably connected to the abutment frame 7 via slide rails, with the sliding direction in the same straight line, so as to partially close the opening on the unloading rack 52. One end of each linkage frame 8 is rotatably connected to the setting frame 51 via a pin, and the other end is inclined downward and rotatably connected to the corresponding abutment frame 7 via a pin.

[0058] Reference Figure 4 , Figure 5 and Figure 7Initially, when the flaring die 2 has not flared the pipe, the two abutment frames 7 are far apart and do not partially close the opening on the stripper frame 52. When the lifting frame 421 slides upward, it drives the stripper frame 52 downward through the reversing gear 54 and two reversing racks 55. During this process, the stripper frame 52 drives the corresponding abutment frame 7 to slide and move closer to each other through the linkage frame 8. After flaring is completed, when the lifting frame 421 slides upward again, the stripper frame 52 drives the corresponding abutment frame 7 to slide and move closer to the flaring die 2 through the linkage frame 8, so that the abutment frame 7 is located on the displacement path of the top of the pipe, thereby abutting the top of the pipe and separating the pipe from the flaring die 2.

[0059] The implementation principle of a pipe flaring forming machine according to Embodiment 2 of this application is as follows: When the pipe is placed on the lifting frame 421, and the lifting frame 421 slides upward, the clamping part 411 on the clamping frame 41 does not abut against the inner wall of the pipe. At this time, the synchronous frame 4231 maintains its own position, so that the lifting frame 421 drives the corresponding clamping frame 41 to slide through the synchronous frame 4231, and the clamping part 411 on the clamping frame 41 approaches the inner wall of the pipe, and finally abuts against the inner wall of the pipe. During this process, the lifting frame 421 drives the stripping frame 52 to slide downward through the reversing gear 54 and two reversing racks 55. At this time, the stripping frame 52 drives the corresponding abutting frame 7 to slide and move closer to each other through the linkage frame 8.

[0060] Subsequently, when it is necessary to continue driving the lifting frame 421 to slide upward, the clamping frame 41 continues to abut against the inner wall of the tube, thereby hindering the sliding of the clamping frame 41 relative to the lifting frame 421. At this time, the lifting frame 421 pulls the corresponding relief frame 425 upward through the synchronization frame 4231. During this process, the setting part on each relief frame 425 abuts against the inner wall of the corresponding spiral groove 6, thereby pushing the relief cylinder 4241 to overcome the elastic force of the torsion spring 426 and rotate. During this process, the stripper frame 52 continues to drive the abutment frame 7 to slide through the linkage frame 8, thereby making the abutment frame 7 located on the displacement path of the top of the tube, so that the abutment frame 7 abuts against the top of the tube, separating the tube from the flaring die core 2.

[0061] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pipe flaring forming machine, comprising a machine body (1), wherein a flaring mold core (2) and a lifting component (3) are disposed on the top of the machine body (1), the lifting component (3) being used to drive the flaring mold core (2) to rise and fall, characterized in that: The bottom of the body (1) is also provided with a clamping mechanism (4). The clamping mechanism (4) includes several clamping frames (41) and a synchronous drive assembly (42). Each clamping frame (41) has a clamping part (411) on its top. The synchronous drive assembly (42) is used to drive several clamping frames (41) to move away from or closer to each other at the same time, so that the clamping part (411) on each clamping frame (41) abuts against the inner sidewall of the bottom of the pipe.

2. The pipe flaring forming machine according to claim 1, characterized in that: The synchronous drive assembly (42) includes a lifting frame (421), a lifting component (422), and a synchronizing component (423). The lifting frame (421) is slidably connected to the machine body (1), and the sliding direction is the same as the lifting direction of the flared mold core (2). The lifting component (422) is used to drive the lifting frame (421) to slide. Each clamping frame (41) is disposed on the lifting frame (421). The synchronizing component (423) is used to drive each clamping frame (41) to move simultaneously.

3. The pipe flaring forming machine according to claim 2, characterized in that: The machine body (1) is also provided with a stripping mechanism (5), which includes a stripping frame (52). The stripping frame (52) is located on the lower side of the flaring die core (2) and on the displacement path of the pipe when it is lifted together with the lifting frame (421).

4. A pipe flaring forming machine according to claim 3, characterized in that: The stripper frame (52) is slidably connected to the machine body (1), and the sliding direction is the same as the sliding direction of the flared die core (2). A buffer spring (53) is also provided above the stripper frame (52). The top end of the buffer spring (53) abuts against the machine body (1), and the bottom end abuts against the top end of the stripper frame (52).

5. A pipe flaring forming machine according to claim 3, characterized in that: The stripping frame (52) is slidably connected to the machine body (1), and the sliding direction is the same as the sliding direction of the flared die core (2). The stripping mechanism (5) also includes a reversing gear (54) and two reversing racks (55). One of the reversing racks (55) is connected to the stripping frame (52), and the other reversing rack (55) is connected to the lifting frame (421). The reversing gear (54) is located between the two reversing racks (55) and meshes with both reversing racks (55).

6. A pipe flaring forming machine according to claim 3, characterized in that: The bottom of the stripping frame (52) is also provided with an opening for the bottom of the flaring die core (2) to pass through. The stripping frame (52) is also provided with an abutment frame (7) and a linkage frame (8). The abutment frame (7) is slidably connected to the stripping frame (52) and is used to be located on the displacement path of the pipe along with the lifting frame (421) after sliding. One end of the linkage frame (8) is rotatably connected to the machine body (1) and the other end is rotatably connected to the abutment frame (7).

7. A pipe flaring forming machine according to claim 2, characterized in that: The synchronizing element (423) includes several synchronizing frames (4231), each of the clamping frames (41) is slidably connected to the lifting frame (421), and the sliding direction is close to the axis of the flared mold core (2). The synchronizing frame (4231) corresponds to the clamping frame (41). One end of each synchronizing frame (4231) is used to rotate relative to the machine body (1), and the other end is rotatably connected to the corresponding clamping frame (41).

8. A pipe flaring forming machine according to claim 7, characterized in that: The synchronous drive assembly (42) further includes a clearance member (424) and a plurality of clearance frames (425). The clearance frames (425) are arranged in a one-to-one correspondence with the synchronous frames (4231). Each clearance frame (425) is slidably connected to the machine body (1), and the sliding direction is parallel to the sliding direction of the lifting frame (421). The end of each synchronous frame (4231) away from the corresponding clamping frame (41) is rotatably connected to the corresponding clearance frame (425). The clearance member (424) is used to drive the plurality of clearance frames (425) to slide simultaneously.

9. A pipe flaring forming machine according to claim 8, characterized in that: The clearance component (424) includes a clearance cylinder (4241), which is rotatably connected to the machine body (1). The clearance cylinder (4241) has several spiral grooves (6) on its side wall. The spiral grooves (6) are arranged in the same direction. The bottom of each clearance frame (425) extends into the corresponding spiral groove (6) and abuts against the inner wall of the corresponding spiral groove (6).

10. A processing method for a pipe flaring forming machine according to any one of claims 1-9, characterized in that: Includes the following steps: Pipe placement: Place the pipe on the machine body (1); Pipe clamping: Each clamping frame (41) is driven to slide by the synchronous drive assembly (42), so that the clamping part (411) on the clamping frame (41) abuts against the bottom inner wall of the pipe, thereby clamping and fixing the pipe. Pipe flaring: The flaring mold (2) is driven down by the lifting component (3), and the bottom end of the flaring mold (2) is inserted into the top of the pipe to flare the top of the pipe. Pipe removal: After the flaring is completed, the lifting component (3) drives the flaring mold (2) to rise, thereby causing the flaring mold (2) to separate from the pipe, so that the workers can remove the flared pipe.

Images