Pipe sealing and forming apparatus

Abstract

This invention provides a pipe sealing and forming device, including a pipe processing and positioning mechanism for limiting the pipe and a pipe processing mechanism for processing the pipe. The pipe processing mechanism includes a movable translational support plate and a movable moving platform mounted on the translational support plate. The moving platform is equipped with an external turning tool and a spinning wheel. When the pipe is fixed in a designated position, the translational support plate and the moving platform cooperate to move the external turning tool or spinning wheel to the processing position. This invention increases the efficiency of pipe end processing and improves the effect of pipe end sealing.

Description

Technical Field

[0001] This invention relates to the field of pipe processing equipment, and in particular to a pipe sealing and forming equipment. Background Technology

[0002] Spinning involves fixing a flat or hollow blank onto a die in a spinning machine. While the blank rotates with the machine spindle, pressure is applied to the blank using spinning wheels or rollers, causing localized plastic deformation. Spinning is a special forming method. It can be used to perform processes such as deep drawing, flanging, necking, bulging, and curling of various shapes of rotating bodies.

[0003] Currently, when processing pipes, such as necking and flattening, multiple processing equipment are usually required, making it impossible to perform multiple processing operations on the same equipment, which greatly affects the efficiency of pipe processing. Summary of the Invention

[0004] The purpose of this invention is to provide a pipe sealing and forming device that increases the efficiency of pipe end processing and improves the effect of pipe end sealing process.

[0005] To solve the above-mentioned technical problems, the present invention provides a pipe sealing and forming equipment, including a pipe processing and positioning mechanism for limiting the pipe and a pipe processing mechanism for processing the pipe. The pipe processing mechanism includes a movable translation plate and a movable moving platform mounted on the translation plate. The moving platform is equipped with an external turning tool and a spinning wheel. When the pipe is fixed in a designated position, the translation plate and the moving platform cooperate to move the external turning tool or the spinning wheel to the processing position.

[0006] Furthermore, the mobile platform has a roller cutter holder, and the spinning wheel is rotatably mounted on the roller cutter holder so that when the spinning wheel performs spinning processing on the pipe, the spinning wheel can rotate relative to the roller cutter holder.

[0007] Furthermore, the mobile platform has an outer turning tool holder and an inner turning tool holder, with an outer turning tool mounted on the outer turning tool holder and a milling cutter mounted on the inner turning tool holder.

[0008] Furthermore, the translation pallet can reciprocate along the first direction, and the moving platform can reciprocate relative to the translation pallet along the second direction.

[0009] Furthermore, the edge of the spinning wheel is set in an arc shape along the circumference, and the machining angle of the spinning wheel is set at an inclination of 20°-30°.

[0010] Furthermore, the pipe processing positioning mechanism includes a rotatable main shaft, a tie rod located inside the main shaft and capable of axial movement along the main shaft, a clamping position located near the end of the main shaft close to the pipe, and several clamping blocks distributed circumferentially along the clamping position. When the pipe is placed in the clamping position, the several clamping blocks move radially along the main shaft and clamp the outer periphery of the pipe.

[0011] Furthermore, the spindle has a locking seat at the end near the tube. The locking seat is inclined in the circumferential direction near the clamping block. The pull rod has a push block at the end near the clamping position. The push block is inclined in the circumferential direction near the clamping block. Both sides of the clamping block have inclined surfaces. The inclined surface on one side of the clamping block fits with the inclined setting of the locking seat, and the inclined surface on the other side of the clamping block fits with the inclined setting of the push block.

[0012] Furthermore, the pull rod is provided with a push rod that can move axially inside. One end of the push rod passes through to the clamping position, and a positioning joint is provided on the end of the push rod that passes through to the clamping position. When the pipe is placed in the clamping position, one end of the pipe abuts against the positioning joint.

[0013] Furthermore, the push rod is provided with a positioning adjustment component on its outer periphery, and the pull rod is provided with a fixing component corresponding to the positioning adjustment component, so that when the pipe pushes the positioning joint, the positioning adjustment component contacts the fixing component and limits the push rod.

[0014] Furthermore, several clamping blocks have grooves on the side near the pipe, and support rings are fastened in the grooves and connected to several clamping blocks in sequence.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. By coordinating the translation pallet and the moving platform in two directions, the milling cutter, external turning tool, and spinning wheel are moved to a suitable machining position, increasing the efficiency of pipe processing;

[0017] 2. The arc-shaped edge of the spinning roller and the 20°-30° inclined processing angle ensure that the arc-shaped edge remains in the narrowing processing position when the spinning roller narrows the pipe, thus increasing the narrowing effect.

[0018] 3. By cooperating with the positioning joint and the clamping block, the limiting effect of the clamping position on the pipe is increased;

[0019] 4. The positioning adjustment component and the fixing component limit the pipe length in the clamping position, thus ensuring the length of the unsealed straight section. Attached Figure Description

[0020] Figure 1 This is the assembly drawing of the present invention.

[0021] Figure 2 This is a schematic diagram of the structure of the present invention.

[0022] Figure 3 This is a schematic diagram of the pipe processing mechanism in this invention.

[0023] Figure 4 This is a top view of the pipe processing mechanism in this invention.

[0024] Figure 5 This is a schematic diagram of the pipe processing positioning mechanism in this invention.

[0025] Figure 6 This is the present invention. Figure 5 A magnified view of a portion of point A in the middle.

[0026] Figure 7 This is a schematic diagram of the support ring structure of the present invention.

[0027] Figure 8 This is a schematic diagram of the running trajectory of the spinning wheel of the present invention.

[0028] Figure 9 This is a schematic diagram of the steps for the flat end face of the present invention.

[0029] Figure 10 This is a schematic diagram of the machining position of the spinning wheel of the present invention.

[0030] Figure 11 This is a schematic diagram of the spinning process of the present invention.

[0031] Figure 12 This is a schematic diagram of the milling cutter of the present invention.

[0032] Reference numerals: 1. Pipe; 2. Pipe processing positioning mechanism; 21. Spindle; 22. Tie rod; 23. Clamping position; 24. Clamping block; 25. Locking seat; 26. Push block; 27. Push rod; 28. Positioning joint; 29. ​​Positioning adjustment component; 210. Fixing component; 211. Groove; 212. Support ring; 3. Pipe processing mechanism; 31. Translation pallet; 32. Moving platform; 33. External turning tool; 34. Spinning wheel; 35. Roller tool holder; 36. External turning tool holder; 37. Internal hole tool holder; 38. Milling cutter. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0034] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting this invention.

[0035] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0036] like Figure 1-12 The present invention provides a pipe sealing and forming equipment, including a pipe processing and positioning mechanism 2 for limiting the pipe 1 and a pipe processing mechanism 3 for processing the pipe 1. The pipe processing mechanism 3 includes a movable translation plate 31 and a movable moving platform 32 mounted on the translation plate 31. The moving platform 32 is provided with an external turning tool 33 and a spinning wheel 34. When the pipe 1 is fixed in a designated position, the translation plate 31 and the moving platform 32 cooperate to move the external turning tool 33 or the spinning wheel 34 to the processing position.

[0037] Specifically, when processing the pipe ends, the pipe is fixed to the processing position by the pipe processing positioning mechanism. Then, the translational support plate and the moving platform move the external turning tool and the spinning wheel to the processing position in sequence. First, the pipe is rotated by the pipe processing positioning mechanism. During the rotation of the pipe, the external turning tool is controlled to approach the end face of the pipe and trim or remove excess material from the end face. Then, the spinning wheel is moved to the constriction position of the pipe. By controlling the spinning wheel to move the pipe end in an arc shape, the pipe end is contacted and squeezed by the spinning wheel. During the reciprocating motion of the spinning wheel, the pipe end is spun and sealed multiple times, thus sealing the pipe end.

[0038] The arc-shaped reciprocating motion of the translation pallet, the moving platform, and the spinning roller is all controlled by a CNC system to ensure the stability of the flat end face and the sealing.

[0039] In one embodiment of this solution, the pipes can be fed manually or automatically by machinery.

[0040] It is worth mentioning that the bottom of the translation pallet in this solution is equipped with a guide rail and a lead screw. The lead screw is controlled to rotate by a servo motor, and the lead screw is threaded to the translation pallet. The translation pallet is directly movably connected to the guide rail, so that when the lead screw rotates, the translation pallet moves along the guide rail under the drive of the lead screw. The movement method of the moving platform is the same as that of the translation pallet.

[0041] Preferably, the mobile platform 32 has a roller cutter holder 35, and the spinning roller 34 is rotatably mounted on the roller cutter holder 35 so that when the spinning roller 34 performs spinning processing on the pipe 1, the spinning roller 34 can rotate relative to the roller cutter holder 35.

[0042] Specifically, since the contact point between the spinning roller and the pipe is subject to significant friction when the spinning roller is spinning and sealing the pipe end, the rotatable setting between the spinning roller and the roller cutter holder allows the spinning roller to rotate during the spinning process, thereby reducing the amount of friction and preventing the spinning roller from being damaged by friction at a certain position.

[0043] In one embodiment of this solution, a bearing is provided at the connection point between the spinning wheel and the roller cutter holder to further reduce the amount of friction experienced by the spinning wheel.

[0044] Preferably, the mobile platform 32 has an outer cylindrical tool holder 36 and an inner hole tool holder 37, with an outer cylindrical turning tool 33 disposed on the outer cylindrical tool holder 36 and a milling cutter 38 disposed on the inner hole tool holder 37.

[0045] Specifically, the machining stability of the external turning tool and the milling cutter is increased by using external turning tool holders and internal hole tool holders. At the same time, after the sealing machining is completed at the pipe end, the sealing position of the pipe can be further machined by the milling cutter, such as machining grooves or round holes at the pipe sealing position to meet more machining needs.

[0046] Preferably, the translation pallet 31 can reciprocate along the first direction, and the moving platform 32 can reciprocate relative to the translation pallet 31 along the second direction.

[0047] Specifically, with the translation pallet and the moving platform moving in the first and second directions respectively, the selectability of the moving paths of the milling cutter, external turning tool and spinning wheel on the moving platform is increased to ensure that each machining operation can meet the requirements of the machining position.

[0048] In one embodiment of this solution, the first direction refers to movement along the y-axis, and the second direction refers to movement along the x-axis.

[0049] Preferably, the edge of the spinning roller 34 is arranged in an arc shape along the circumference, and the processing angle of the spinning roller 34 is inclined at 20°-30°.

[0050] Specifically, the arc-shaped edge can effectively ensure the effect of the spinning wheel when processing the pipe. Because the arc-shaped structure is smoother than the flat end face when processing the pipe, the sealing position of the pipe is processed more smoothly, improving the sealing effect.

[0051] Meanwhile, because the spinning wheel is tilted at an angle of 20°-30°, the edge of the arc-shaped structure can always be kept in the spinning position during the spinning process, further improving the spinning effect.

[0052] It is worth mentioning that the processing angle refers to the angle between the front plane of the spinning roller and the processing end face of the tube.

[0053] Preferably, the pipe processing positioning mechanism 2 includes a rotatable main shaft 21, a tie rod 22 located inside the main shaft 21 and capable of axial movement along the main shaft, a clamping position 23 located at one end of the main shaft 21 near the pipe 1, and a plurality of clamping blocks 24 distributed circumferentially along the clamping position 23. When the pipe 1 is placed in the clamping position 23, the plurality of clamping blocks 24 move radially along the main shaft 21 and clamp the outer periphery of the pipe 1.

[0054] Specifically, when the pipe is fed to the clamping position, several clamping blocks move radially closer to the outer circumference of the pipe to clamp and fix it. Then, the pipe is rotated by the rotation of the spindle to ensure that the pipe can be processed in subsequent processing with milling cutters, external turning tools and spinning wheels.

[0055] In one embodiment of this solution, the spindle is rotatably fixed on the spindle seat, and the spindle is driven to rotate by a servo motor.

[0056] Preferably, the main shaft 21 has a locking seat 25 at one end near the tube 1. The locking seat 25 is inclined in the circumferential direction near the clamping block 24. The pull rod 22 has a push block 26 at one end near the clamping position 23. The push block 26 is inclined in the circumferential direction near the clamping block 24. Both sides of the clamping block 24 have inclined surfaces. The inclined surface on one side of the clamping block 24 fits with the inclined setting of the locking seat 25, and the inclined surface on the other side of the clamping block 24 fits with the inclined setting of the push block 26.

[0057] Specifically, when it is necessary to clamp the pipe with several clamping blocks, the pull rod pushes the push block to move, so that the inclined setting position on one side of the push block tilts and pushes the clamping block. At the same time, the other side of the clamping block is guided by the inclined position of the locking seat, so that the inclined surfaces on both sides of the clamping block are tilted and guided, so that the clamping block moves closer to the pipe under the action of tilting guidance.

[0058] In one embodiment of this solution, a hydraulic cylinder is arranged on the outer periphery of the spindle. The hydraulic cylinder drives the pull rod to reciprocate axially, and the connection between the hydraulic cylinder and the pull rod is a rotatable connection, so that when the pull rod rotates with the spindle, there will be no interference between the pull rod and the hydraulic cylinder.

[0059] Preferably, the pull rod 22 is provided with a push rod 27 that can move axially inside. One end of the push rod 27 passes through the clamping position 23, and a positioning joint 28 is provided on the end of the push rod 27 that passes through the clamping position 23. When the pipe 1 is placed in the clamping position 23, one end of the pipe 1 abuts against the positioning joint 28.

[0060] Specifically, when the pipe is fed to the clamping position, the end of the pipe in the clamping position is initially limited by the positioning joint. At the same time, when it is necessary to remove the pipe, the positioning joint can be pushed out by the push rod to ensure the stability of the pipe loading and unloading.

[0061] In one embodiment of this solution, the end of the push rod away from the pipe is connected to a hydraulic cylinder, pneumatic cylinder, or electric push rod, so that the push rod can move axially.

[0062] Preferably, the push rod 27 is provided with a positioning adjustment member 29 on its outer periphery, and the pull rod 22 is provided with a fixing member 210 corresponding to the positioning adjustment member 29, so that when the pipe 1 pushes the positioning joint 28, the positioning adjustment member 29 contacts the fixing member 210 and limits the push rod 27.

[0063] Specifically, when the tube is placed in the clamping position, the tube is pushed inward along the clamping position. At this time, one end of the tube abuts against the positioning joint. Then the tube continues to be pushed inward, which causes the positioning joint and the push rod to move. During the movement of the push rod, the positioning adjustment component contacts the fixing component to prevent the push rod from moving further, thereby limiting the stroke of the push rod. This ensures that the length of the tube left inside the spindle remains consistent each time it is processed, that is, to ensure the length of the unsealed straight section.

[0064] In one embodiment of this solution, both the positioning adjustment component and the fixing component adopt a nut structure.

[0065] Preferably, each of the clamping blocks 24 has a groove 211 on the side near the pipe 1, and the support ring 212 is fastened in the groove 211 and connected to the clamping blocks 24 in sequence.

[0066] Specifically, by setting the support rings, several clamping blocks are supported synchronously to ensure that the clamping blocks will not fall off when the pipe is not placed in the clamping position. Since the support rings are fastened in the grooves, the pipe and the support rings will not come into direct contact, thus avoiding interference.

[0067] In one embodiment of this solution, the support ring is made of spring steel wire. The design of the spring steel wire support ring is such that, in its free state, the outer diameter of the support ring is 7mm larger than the outer diameter of the support ring when the clamping block is tightened, and in its ultimate closed state, the outer diameter of the support ring is smaller than the outer diameter of the support ring groove when the clamping block is tightened. This ensures that the opening of the clamping block in its natural state relies on the elasticity of the spring steel wire support ring itself to open the clamping block, while the support ring is compressed when the clamping block is tightened.

[0068] This invention is not limited to the preferred embodiments described above. Anyone can derive other products in various forms under the guidance of this invention. However, regardless of any changes in shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this invention.

Claims

1. A pipe sealing and forming equipment, characterized in that: The system includes a pipe processing positioning mechanism (2) for limiting the pipe (1) and a pipe processing mechanism (3) for processing the pipe (1). The pipe processing mechanism (3) includes a movable translation plate (31) and a movable moving platform (32) on the translation plate (31). The moving platform (32) is equipped with an external turning tool (33) and a spinning wheel (34). When the pipe (1) is fixed in a designated position, the translation plate (31) and the moving platform (32) move together to move the external turning tool (33) or the spinning wheel (34) to the processing position. The pipe processing positioning mechanism (2) includes a rotatable main shaft (21), a tie rod (22) located inside the main shaft (21) and axially movable along the main shaft, a clamping position (23) located at the end of the main shaft (21) near the pipe (1), and several clamping blocks (24) distributed circumferentially along the clamping position (23). When the pipe (1) is placed in the clamping position (23), the several clamping blocks (24) move radially along the main shaft (21) and clamp the outer periphery of the pipe (1). The main shaft (21) has a locking seat (25) at one end near the tube (1). The locking seat (25) is inclined in the circumferential direction near the clamping block (24). The pull rod (22) has a push block (26) at one end near the clamping position (23). The push block (26) is inclined in the circumferential direction near the clamping block (24). Both sides of the clamping block (24) are provided with inclined surfaces. The inclined surface on one side of the clamping block (24) fits against the inclined setting of the locking seat (25), and the inclined surface on the other side of the clamping block (24) fits against the inclined setting of the push block (26). The pull rod (22) is provided with a push rod (27) that can move axially inside. One end of the push rod (27) passes through to the clamping position (23), and a positioning joint (28) is provided on the end of the push rod (27) that passes through to the clamping position (23). When the pipe (1) is placed in the clamping position (23), one end of the pipe (1) abuts against the positioning joint (28).

2. The pipe sealing and forming equipment according to claim 1, characterized in that: The mobile platform (32) has a roller cutter holder (35), and the spinning wheel (34) is rotatably mounted on the roller cutter holder (35) so that when the spinning wheel (34) spins the pipe (1), the spinning wheel (34) can rotate relative to the roller cutter holder (35).

3. The pipe sealing and forming equipment according to claim 1, characterized in that: The mobile platform (32) has an outer cylindrical tool holder (36) and an inner hole tool holder (37). An outer cylindrical turning tool (33) is mounted on the outer cylindrical tool holder (36), and a milling cutter (38) is mounted on the inner hole tool holder (37).

4. The pipe sealing and forming equipment according to claim 1, characterized in that: The translation pallet (31) can reciprocate along the first direction, and the moving platform (32) can reciprocate relative to the translation pallet (31) along the second direction.

5. The pipe sealing and forming equipment according to claim 1, characterized in that: The edge of the spinning wheel (34) is arranged in a circular arc shape along the circumference, and the machining angle of the spinning wheel (34) is inclined at 20°-30°.

6. The pipe sealing and forming equipment according to claim 1, characterized in that: The push rod (27) is provided with a positioning adjustment component (29) on its outer periphery, and the pull rod (22) is provided with a fixing component (210) corresponding to the positioning adjustment component (29), so that when the pipe (1) pushes the positioning joint (28), the positioning adjustment component (29) contacts the fixing component (210) and limits the push rod (27).

7. The pipe sealing and forming equipment according to claim 1, characterized in that: Several clamping blocks (24) are provided with grooves (211) on the side near the pipe (1), and support rings (212) are fastened in the grooves (211) and connected to several clamping blocks (24) in sequence.

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