MPP power pipe flaring process

Abstract

The application discloses a kind of MPP power tube flaring machining processes, comprising the following steps: S1, heated MPP power tube is inserted on the first flaring plate located on rack by artificial or mechanical, and MPP power tube is inserted to the support baffle at rack;S2, control first flaring device first flaring plate to expand and carry out flaring to MPP power tube;S3, after first flaring device first flaring plate completely expands, control second flaring device second flaring plate to expand and carry out flaring to MPP power tube;S4, control sprinkling water component and cool to MPP power tube and shape;S5, first control second flaring device second flaring plate to gather, then control first flaring device first flaring plate to gather, then by artificial or mechanical, MPP power tube after processing is taken down;The MPP power tube flaring machining process not only simple operation but also can efficiently realize the flaring processing of MPP power tube.

Description

Technical Field

[0001] This invention relates to the field of MPP power pipe technology, and in particular to a flaring process for MPP power pipes. Background Technology

[0002] MPP power pipes are characterized by good electrical insulation, high tensile and compressive strength, and high heat distortion temperature and low-temperature impact resistance. They are widely used in municipal, telecommunications, power, gas, water supply, and heating pipeline projects. Since MPP power pipes often require connection between two ends of the same size, this necessitates heating the pipe joint and then using a reaming machine to enlarge the hole at the joint to meet subsequent usage requirements. However, some shortcomings still exist in the current reaming process for MPP power pipes:

[0003] 1. Currently, when enlarging the joint of MPP power pipe, it is often necessary to have multiple people work together or use machinery to forcibly insert the enlarging head of the enlarging equipment into the heated MPP power pipe to expand the end diameter of the MPP power pipe. Due to the large volume of MPP power pipe, manual operation is difficult. Moreover, at the end of the enlarging process, the expansion effect of the enlarging head on the end of the MPP power pipe and the fact that the diameter of the enlarging head cannot be changed make it difficult to remove the MPP power pipe, which affects work efficiency and increases processing costs.

[0004] 2. When enlarging the hole at the MPP power pipe joint, in order to quickly shape the high-temperature MPP power pipe, it is necessary to spray water to cool the MPP power pipe joint during the hole enlarging process. However, the existing MPP power pipe hole enlarging equipment cannot spray water to all parts of the MPP power pipe when spraying water to cool it, resulting in uneven cooling at the MPP power pipe joint and thus affecting the processing quality of the MPP power pipe. Summary of the Invention

[0005] The purpose of this invention is to provide a flaring process for MPP power pipes, which is not only simple to operate but also efficient in achieving the flaring process for MPP power pipes.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an MPP power pipe flaring process, comprising the following steps:

[0007] S1. Insert the heated MPP power pipe manually or mechanically into the first enlarged plate on the frame, and insert the MPP power pipe into the support baffle on the frame.

[0008] S2. Control the first hole-expanding device to drive the first hole-expanding plate to expand the hole in the MPP power pipe;

[0009] S3. After the first reaming plate of the first reaming device is fully extended, control the second reaming plate of the second reaming device to extend and ream the MPP power pipe.

[0010] S4. Control the water spraying components to cool and shape the MPP power pipes;

[0011] S5. First, control the second hole-expanding device to drive the second hole-expanding plate to retract. Then, control the first hole-expanding device to drive the first hole-expanding plate to retract. Finally, remove the processed MPP power pipe manually or mechanically.

[0012] Furthermore, the frame has a rotating bracket on the right side of the support baffle, and a rotating block arranged in the left-right direction is rotatably connected to the rotating bracket. The outer side of the rotating block has a right stop edge located on the left and right sides of the rotating bracket, and the left end of the rotating block has a left stop edge. The rotating block has a first slot with an opening at the right end, and a second slot penetrating to the left at the left end of the first slot. The outer circumference of the rotating block has a plurality of first axial grooves and a plurality of second axial grooves evenly spaced, and the plurality of first axial grooves and the plurality of second axial grooves are arranged sequentially and spaced along the outer circumference of the rotating block. The frame has a positioning bracket on the right side of the rotating bracket, and the positioning bracket has a mounting hole that penetrates left and right. The mounting hole is coaxial with the rotating block. A first control component connected to a first hole-expanding device and a second control component connected to a second hole-expanding device are slidably connected in the left-right direction in the mounting hole. A shaft is slidably connected between the first control component and the second control component in the left-right direction.

[0013] Furthermore, the first expanding device includes a first rotating ring, and a first annular groove is provided on the outer side of the first control component. The first rotating ring is rotatably connected in the first annular groove. The left end of the first rotating ring is provided with a first sliding plate that is slidably connected in a first axial sliding groove. The left end of the first sliding plate is provided with a first connecting block. Two first connecting rods are hinged on the first connecting block. The ends of the two first connecting rods are hinged to the first hinge block of the first expanding plate. When the first sliding plate moves to the left and the left end of the first expanding plate abuts against the left stop, as the first sliding plate continues to move to the left, the two first connecting rods drive the first expanding plate away from the rotating block and expand. When the left end of the first control component abuts against the left end of the first slot, the first sliding plate stops moving. When the first sliding plate moves from left to right, because the right end of the first expanding plate abuts against the left side of the support baffle, as the first sliding plate moves to the right, the two first connecting rods drive the first expanding plate to move closer to the rotating block and retract.

[0014] Furthermore, the second expanding device includes a second rotating ring, and a second annular groove is provided on the outer side of the second control component. The second rotating ring is rotatably connected in the second annular groove. A second sliding plate is provided at the left end of the second rotating ring and slidably connected in the second axial sliding groove. A second connecting block is provided at the left end of the second sliding plate. Two second connecting rods are hinged on the second connecting block. The ends of the two second connecting rods are hinged to the second hinge block of the second expanding plate. When the second sliding plate moves to the left and the left end of the second expanding plate abuts against the left stop, as the second sliding plate continues to move to the left, the two second connecting rods drive the second expanding plate away from the rotating block to expand. When the left end of the second control component abuts against the left end of the first slot, the second sliding plate stops moving. When the second sliding plate moves from the left end to the right, because the right end of the second expanding plate abuts against the left side of the support baffle, as the second sliding plate moves to the right, the two second connecting rods drive the second expanding plate to retract closer to the rotating block.

[0015] Furthermore, the shaft has a first radial hole, in which a first sliding pin is slidably connected; the first control component has a second radial hole, in which a second sliding pin is located; the second control component has a third radial hole, in which a third sliding pin is located; both ends of the first, second, and third sliding pins are hemispherical; the inner wall of the mounting hole has a left first positioning hole for the second sliding pin to extend into, and a left second positioning hole and a right positioning hole for the third sliding pin to extend into; the first control component has a first positioning hole and a first positioning groove for the first sliding pin to extend into, and the second control component has a second positioning hole for the first sliding pin to extend into; the outer side of the shaft has a third positioning hole for the second sliding pin to extend into, and a fourth positioning hole for the third sliding pin to extend into.

[0016] Furthermore, when the first sliding pin is located in the first positioning hole and the second sliding pin is located in the third positioning hole, and the third sliding pin is located in the left second positioning hole, the shaft is in the right end position. As the shaft moves to the left, the shaft drives the first control component to move to the left through the first and second sliding pins, controlling the first expanding plate of the first expanding device to unfold. When the left end of the first control component abuts against the left end of the first slot, the first control component stops moving. As the shaft continues to move to the left, the first sliding pin disengages from the first positioning hole and enters the second positioning hole, and the second sliding pin disengages from the third positioning hole and enters the left first positioning hole. The first control component is fixedly connected to the positioning bracket. The third sliding pin disengages from the second positioning hole on the left and enters the fourth positioning hole. At this time, as the shaft moves to the left, the shaft drives the second control component to move to the left. When the left end of the second control component abuts against the left end of the first slot, the second control component stops moving. As the shaft continues to move to the left, the first sliding pin disengages from the second positioning hole and enters the first positioning groove. The third sliding pin disengages from the fourth positioning hole and enters the right positioning hole, fixing the second control component to the positioning bracket. At this time, as the shaft continues to move to the left to the left end position, the shaft drives the rotating block to rotate.

[0017] As the shaft moves from the left end to the right, it drives the first sliding pin to the right end of the first positioning groove. As the shaft continues to move to the right, the first sliding pin disengages from the first positioning groove and enters the second positioning hole. The third sliding pin disengages from the right positioning hole and enters the fourth positioning hole, unlocking the second control component. As the shaft moves to the right, it drives the second control component to move to the right. When the second rotating ring abuts against the left side of the positioning bracket, the second control component stops moving. As the shaft continues to move to the right, the first sliding pin disengages from the second positioning hole and enters the first positioning hole. The second sliding pin disengages from the left first positioning hole and enters the third positioning hole, unlocking the first control component from the positioning bracket. The third sliding pin disengages from the fourth positioning hole and enters the left second positioning hole, fixing the second control component to the positioning bracket. At this time, as the shaft moves to the right, it drives the first control component to move to the right. When the first expanding plate abuts against the left end of the second expanding plate, the shaft moves to the right end.

[0018] Furthermore, the outer side of the left end of the shaft is provided with a spiral groove, and the inner sidewall of the second groove hole is provided with a protrusion for extending into the spiral groove. When the shaft moves to the left and the protrusion enters the spiral groove, as the shaft continues to move to the left, the protrusion and the spiral groove cooperate to drive the rotating block to rotate.

[0019] Furthermore, the water spraying assembly includes a top plate mounted on the frame, and the top plate is provided with a water spray nozzle located above the first orifice expansion device.

[0020] Furthermore, the frame is provided with a mounting plate, on which a first electric push rod is fixedly mounted, and the telescopic end of the first electric push rod is fixedly connected to the right end of the shaft.

[0021] Beneficial effects

[0022] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0023] 1. By setting up a retractable first and second hole-expanding device, the present invention can retract the first and second hole-expanding plates during feeding, thereby allowing the MPP power tube to be easily inserted into the first hole-expanding plate of the present invention. The first electric push rod automatically unfolds the first and second hole-expanding plates to expand the hole of the MPP power tube. After the hole expansion is completed, the first and second hole-expanding plates are automatically retracted, so that the expanded MPP power tube can be easily pulled out. This saves manpower, reduces the difficulty of operation, and lowers the processing cost.

[0024] 2. By setting up a first expansion plate and a second expansion plate, the present invention can rotate the rotating block by the first electric push rod while expanding the hole, and then cool and shape the MPP power pipe joint quickly and evenly through the water spraying device above the rotating block, thus ensuring the processing quality of the MPP power pipe.

[0025] 3. By setting up a first hole-expanding device and a second hole-expanding device, the present invention can easily complete the loading and unloading of MPP power tubes using only a first electric push rod. The hole-expanding of MPP power tubes is fast and uniformly cooled and shaped without the need for other electrical control equipment. The structure is compact, highly integrated, and saves equipment costs. Attached Figure Description

[0026] Figure 1 This is a three-dimensional view of the initial state of the present invention;

[0027] Figure 2 This is a three-dimensional view of the initial state from another perspective of the present invention;

[0028] Figure 3 This is a three-dimensional view of the hole enlargement process in this invention;

[0029] Figure 4 This is a three-dimensional view of the rotating block state during hole enlargement according to the present invention;

[0030] Figure 5 This is a top sectional view of the initial state of the present invention;

[0031] Figure 6 This is a top sectional view of the hole enlargement process according to the present invention;

[0032] Figure 7 This is a three-dimensional view of the assembly of the rotating block of the present invention with other components;

[0033] Figure 8 This is a three-dimensional view of the first hole-expanding device of the present invention;

[0034] Figure 9 This is a three-dimensional view of the second hole-expanding device of the present invention;

[0035] Figure 10 This is a three-dimensional part drawing of the rotating block of the present invention;

[0036] Figure 11 This is a three-dimensional view of the internal structure of the rotating block of the present invention;

[0037] Figure 12 This is a three-dimensional part drawing of the first control component of the present invention;

[0038] Figure 13 This is a three-dimensional part drawing of the second control component of the present invention. Detailed Implementation

[0039] Please see Figure 1-13 As shown, an MPP power pipe flaring process includes the following steps:

[0040] S1. Insert the heated MPP power pipe into the first expansion plate 24 located on the frame 1 manually or mechanically, and insert the MPP power pipe into the bracket baffle 13 located on the frame 1.

[0041] S2. Control the first hole-expanding device to drive the first hole-expanding plate 24 to expand the hole in the MPP power pipe.

[0042] S3. After the first reaming plate 24 of the first reaming device is fully deployed, control the second reaming plate of the second reaming device to deploy and ream the MPP power pipe.

[0043] S4. Control the water spraying components to cool and shape the MPP power pipes;

[0044] S5. First, control the second hole-expanding device to drive the second hole-expanding plate 34 to retract. Then, control the first hole-expanding device to drive the first hole-expanding plate 24 to retract. Then, remove the processed MPP power pipe manually or mechanically.

[0045] In this embodiment, a rotating bracket 12 is provided on the right side of the bracket baffle 13 on the frame 1. A rotating block 6 arranged in the left-right direction is rotatably connected to the rotating bracket 12. The outer side of the rotating block 6 is provided with right sidewalls 6a located on the left and right sides of the rotating bracket 12. The left end of the rotating block 6 is provided with a left sidewall 64. The rotating block 6 is provided with a first slot 63 with an opening at the right end. The left end of the first slot 63 in the rotating block 6 is provided with a second slot 6c that penetrates the rotating block 6 to the left. A plurality of first axial grooves 61 and a plurality of second axial grooves 6b are evenly spaced on the outer circumference of the rotating block 6. The first axial groove 61 and a plurality of second axial grooves 6b are arranged sequentially at intervals along the outer circumference of the rotating block 6; the frame 1 is provided with a positioning bracket 11 on the right side of the rotating bracket 12, the positioning bracket 11 is provided with a mounting hole 11a that runs through the left and right sides, the mounting hole 11a is coaxial with the rotating block 6; a first control component 21 connected to the first hole-expanding device and a second control component 31 connected to the second hole-expanding device are slidably connected in the left and right direction in the mounting hole 11a, and a shaft 42 is slidably connected between the first control component 21 and the second control component 31 in the left and right direction.

[0046] The first reaming device includes a first rotating ring 22. A first annular groove 214 is provided on the outer side of the first control component 21, and the first rotating ring 22 is rotatably connected within the first annular groove 214. A first sliding plate 22a is slidably connected to the left end of the first rotating ring 22 within a first axial sliding groove 61. A first connecting block 221 is provided at the left end of the first sliding plate 22a. Two first connecting rods 231 are hinged to the first connecting block 221, and the ends of the two first connecting rods 231 are hinged to the first hinge block 241 of the first reaming plate 24. The first sliding plate 22a... When the first slide plate 24 moves to the left and its left end touches the left stop 64, as the first slide plate 22a continues to move to the left, the two first connecting rods 231 drive the first slide plate 24 away from the rotating block 6 to unfold. When the left end of the first control component 21 touches the left end of the first slot 63, the first slide plate 22a stops moving. When the first slide plate 22a moves from left to right, because the right end of the first slide plate 24 touches the left side of the bracket baffle 13, as the first slide plate 22a moves to the right, the two first connecting rods 231 drive the first slide plate 24 to move closer to the rotating block 6 and retract.

[0047] The second reaming device includes a second rotating ring 32. A second annular groove 31a is provided on the outer side of the second control component 31, and the second rotating ring 32 is rotatably connected within the second annular groove 31a. A second sliding plate 32a is slidably connected to the left end of the second rotating ring 32 within the second axial sliding groove 6b. A second connecting block 321 is provided at the left end of the second sliding plate 32a. Two second connecting rods 331 are hinged to the second connecting block 321, and the ends of the two second connecting rods 331 are hinged to the second hinge block 341 of the second reaming plate 34. The second sliding plate 32a... When the second slide plate 34 moves to the left and its left end touches the left stop 64, as the second slide plate 32a continues to move to the left, the two second connecting rods 331 drive the second slide plate 34 away from the rotating block 6 to unfold. When the left end of the second control component 31 touches the left end of the first slot 63, the second slide plate 32a stops moving. When the second slide plate 32a moves from the left end to the right, because the right end of the second slide plate 34 touches the left side of the bracket baffle 13, as the second slide plate 32a moves to the right, the two second connecting rods 331 drive the second slide plate 34 to move closer to the rotating block 6 and retract.

[0048] The shaft 42 has a first radial hole 421, and a first sliding pin 43 is slidably connected in the first radial hole 421. The first control component 21 has a second radial hole 211, and a second sliding pin 25 is provided in the second radial hole 211. The second control component 31 has a third radial hole 311, and a third sliding pin 35 is provided in the third radial hole 311. Both ends of the first sliding pin 43, the second sliding pin 25, and the third sliding pin 35 are hemispherical. The inner sidewall of the mounting hole 11a is provided with a fore-and-aft connection for the first sliding pin 43. The left first positioning hole 111 into which the second sliding pin 25 extends, and the left second positioning hole 112 and the right positioning hole 113 into which the third sliding pin 35 extends; the first control component 21 is provided with a first positioning hole 212 and a first positioning groove 213 into which the first sliding pin 43 extends, and the second control component 31 is provided with a second positioning hole 312 into which the first sliding pin 43 extends; the outer side of the shaft 42 is provided with a third positioning hole 422 into which the second sliding pin 25 extends, and a fourth positioning hole 423 into which the third sliding pin 35 extends.

[0049] In this embodiment, when the first sliding pin 43 is located in the first positioning hole 212 and the second sliding pin 25 is located in the third positioning hole 422, and the third sliding pin 35 is located in the left second positioning hole 112, the shaft 42 is in the right end position. As the shaft 42 moves to the left, the shaft 42 drives the first control component 21 to move to the left through the first sliding pin 43 and the second sliding pin 25 to control the first hole-expanding plate 24 of the first hole-expanding device to unfold. When the left end of the first control component 21 abuts against the left end of the first slot 63, the first control component 21 stops moving. As the shaft 42 continues to move to the left, the first sliding pin 43 disengages from the first positioning hole 212 and enters the second positioning hole 312, and the second sliding pin 25 disengages from the third positioning hole 422 and enters the left first positioning hole 111. The first control component 21 is fixedly connected to the positioning bracket 11. The third sliding pin 35 disengages from the left second positioning hole 112 and enters the fourth positioning hole 423. At this time, as the shaft 42 moves to the left, the shaft 42 drives the second control component 31 to move to the left. When the left end of the second control component 31 abuts against the left end of the first slot 63, the second control component 31 stops moving. As the shaft 42 continues to move to the left, the first sliding pin 43 disengages from the second positioning hole 312 and enters the first positioning slide groove 213. The third sliding pin 35 disengages from the fourth positioning hole 423 and enters the right positioning hole 113, fixing the second control component 31 to the positioning bracket 11. At this time, as the shaft 42 continues to move to the left to the left end position, the shaft 42 drives the rotating block 6 to rotate.

[0050] As the shaft 42 moves from the left end to the right, it drives the first sliding pin 43 to the right end of the first positioning groove 213. As the shaft 42 continues to move to the right, the first sliding pin 43 disengages from the first positioning groove 213 and enters the second positioning hole 312. The third sliding pin 35 disengages from the right positioning hole 113 and enters the fourth positioning hole 423, unlocking the second control component 31. As the shaft 42 moves to the right, it drives the second control component 31 to move to the right. When the second rotating ring 32 abuts against the left side of the positioning bracket 11, the second control component 31 stops moving. Continuing to move to the right, the first sliding pin 43 disengages from the second positioning hole 312 and enters the first positioning hole 212. The second sliding pin 25 disengages from the left first positioning hole 111 and enters the third positioning hole 422, unlocking the first control component 21 from the positioning bracket 11. The third sliding pin 35 disengages from the fourth positioning hole 423 and enters the left second positioning hole 112, fixing the second control component 31 to the positioning bracket 11. At this time, as the shaft 42 moves to the right, the shaft 42 drives the first control component 21 to move to the right. When the first expanding plate 24 abuts against the left end of the second expanding plate 34, the shaft 42 moves to the right end position. The outer side of the left end of the shaft 42 is provided with a spiral groove 424. The inner sidewall of the second groove hole 6c is provided with a protrusion 65 for extending into the spiral groove 424. When the shaft 42 moves to the left and the protrusion 65 enters the spiral groove 424, as the shaft 42 continues to move to the left, the protrusion 65 and the spiral groove 424 cooperate to drive the rotating block 6 to rotate.

[0051] The water spraying assembly includes a top plate 14 mounted on a frame 1, and a water spray nozzle 5 positioned above the first hole-expanding device on the top plate 14. A mounting plate 15 is mounted on the frame 1, and a first electric push rod 41 is fixedly mounted on the mounting plate 15. The telescopic end of the first electric push rod 41 is fixedly connected to the right end of a shaft 42.

[0052] In S2 of this embodiment, when the first hole-expanding device is working, the first electric push rod 41 on the control mounting plate 15 retracts, causing the shaft 42, which is slidably connected in the first control component 21 and the second control component 31, to slide to the left. (e.g.) Figure 5 As shown), since the first sliding pin 43 is slidably connected to the first radial hole 421 on the shaft 42, and the first sliding pin 43 is located in the first positioning hole 212 inside the first control component 21, while the second sliding pin 25 in the second radial hole 211 on the first control component 21 is located in the third positioning hole 422, the first control component 21 can be driven to slide to the left by the first electric push rod 41. Simultaneously, the first control component 21 is rotatably connected to the first rotating ring 22 through the first annular groove 214 (as shown). Figure 8 , 12(as shown in the diagram), and the first slide plate 22a on the first rotating ring 22 is slidably connected in the first axial groove of the rotating block 6, while the rotating block 6 is rotatably connected in the rotating bracket 12 on the frame 1 through the right stop 6a. Since the four sets of first expanding plates 24 are connected to the first slide plate 22a through the first connecting block 221 via the four sets of two first connecting rods 231 hinged to their first hinge block 241, and then as the first electric push rod 41 continues to retract, the first expanding plates 24 are blocked by the left stop 64, causing the first expanding plates 24 to expand outward.

[0053] When the first sliding pin 43 is at the second positioning hole 312 and the second sliding pin 25 is at the left positioning hole 111 on the mounting hole 11a, the first control component 21 enters the left end of the first rotating groove. At this time, since the lengths of the first connecting block 221 and the first hinge block 241 are the same, when the first connecting rod 231 is fully engaged with the left stop 64, the two first connecting rods 231 are fully extended, causing the first expanding plate 24 to fully unfold. At this time, the left end of the first sliding plate 22a presses against the left stop 64, and the first control component 21 enters the left end of the first rotating groove, preventing the first control component 21 from moving forward. After unfolding, the first expanding plate 24 is prevented from tilting backward by the action of the bracket baffle 13, thus ensuring the stability of the invention during hole enlargement and completing the unfolding and hole enlargement of the first expanding device.

[0054] In S3 of this embodiment, when the second hole-expanding device is working, the first electric push rod 41 continues to retract. Since the first hole-expanding device can no longer be driven to slide to the left by the shaft 42, and the first sliding pin 43 is at the second positioning hole 312, and the second sliding pin 25 is at the left first positioning hole 111, the shaft 42 continues to move to the left. This causes the first sliding pin 43 to be squeezed out of the first positioning hole 212, and the other end to be squeezed into the second positioning hole 312 on the second control component 31. One end of the second sliding pin 25 is squeezed out of the first positioning hole 212, and the other end is squeezed into the left first positioning hole 111. One end of the third sliding pin 35, which is slidably connected in the third radial hole 311, is squeezed out of the left second positioning hole 112, and the other end is squeezed into the fourth positioning hole 423, so that the shaft 42 is connected to the second control component 31 through the first sliding pin 43 and the third sliding pin 35.

[0055] At this time, the shaft 42 disengages from the first control component 21. Under the action of the grooveless surface of the shaft 42, the second sliding pin 25 is pushed into the left first positioning hole 111, so that after the first control component 21 disengages from the shaft 42, the first hole-expanding device can maintain the hole-expanding state. As the first electric push rod 41 continues to retract, when the first sliding pin 43 moves to (e.g.) Figure 6 In the state shown, (as shown) Figure 9As shown, the second hole-expanding device is pushed by the second control component 31, which is rotatably connected to the second rotating ring 32 via the rotating connecting ring 313. This causes the four sets of two second connecting rods 331, which are hinged by the second hinge block 341, and the four sets of second hole-expanding plates 34, which are relatively connected by the second connecting block 321, to unfold outward only when they are in complete contact with the left side 64 under the action of the bracket baffle 13. When the first sliding pin 43 is squeezed out from the second positioning hole 312 and squeezed into the first positioning groove 213, and the third sliding pin 35 is squeezed out from the fourth positioning hole 423 and squeezed into the right positioning hole 113, and the second control component 31 is fully inserted into the first rotating groove, the shaft 42 is disengaged from the second control component 31, the second expanding plate 34 is fully expanded, and since the second control component 31 is fixed in the mounting hole 11a by the third sliding pin 35, the second expanding device can maintain the expanded state after the shaft 42 is disengaged from the second control component 31, thereby completing the expansion of the second expanding device.

[0056] In the above S4 of this embodiment, during the rapid cooling and shaping of the MPP power pipe, the water spray nozzle 5 on the top plate 14 is opened. Simultaneously, because the first sliding pin 43 enters the first positioning groove 213, the shaft 42 can continue to move to the left, and (as...) Figure 6 As shown, the spiral groove 424 at the left end of the shaft 42 contacts the protrusion 65 inside the rotating block 6. As the first electric push rod 41 continues to retract, the protrusion 65 slides in the spiral groove 424, thereby causing the rotating block 6, which is fixedly connected and slidably connected to it on the rotating bracket 12, to rotate, thereby causing the MPP power tube to rotate. Since the first control component 21 is rotatably connected to the first rotating ring 22 and the second control component 31 is rotatably connected to the second rotating ring 32, the first control component 21 and the second control component 31 do not interfere with the rotation of the rotating block 6, so that the MPP power tube can fully contact the water sprayed from the sprinkler head 5 above, thereby completing the rapid cooling and shaping of the MPP power tube.

[0057] In the above S5 of this embodiment, when controlling the first and second hole-expanding devices to reset, as follows: Figure 6As shown, after the rapid cooling and shaping of the MPP power pipe is completed, the first electric push rod 41 is extended, the first sliding pin 43 returns to the second positioning hole 312, and the fourth positioning hole 423 returns to the third sliding pin 35 on the right positioning hole 113. As the first electric push rod 41 continues to extend, since the first control component 21 is in the positioning state, one end of the first sliding pin 43 is squeezed out of the first positioning groove 213, and the other end is squeezed into the second positioning hole 312. One end of the third sliding pin 35 is squeezed out of the right positioning hole 113, and the other end is squeezed into the fourth positioning hole 423. This causes the second control component 31 to disengage from the positioning of the mounting hole 11a and connect to the shaft 42. As the first electric push rod 41 continues to extend, when the first sliding pin 43 returns to the first positioning hole 212, the third sliding pin 35 arrives at the second positioning hole 112 on the left, and the third positioning hole 422 arrives at the second sliding pin 25 that has been positioned. At this time, the second hole expansion device is completely retracted, and under the action of the rotating bracket 12, it can no longer be pulled to the right. As a result, one end of the first sliding pin 43 is squeezed out of the second positioning hole 312, and the other end is squeezed into the first positioning hole 212. The second sliding pin 25 disengages from the first positioning hole 111 on the left and enters the third positioning hole 422. The third sliding pin 35 disengages from the fourth positioning hole 423 and enters the second positioning hole 112 on the left. At this time, the second control component 31 disengages from the shaft 42 and is positioned in the mounting hole 11a through the left second positioning hole 112. At the same time, the first control component 21 disengages from the mounting hole 11a and connects to the shaft 42. Then, the shaft 42 can continue to drive the first control component 21 to move outward. After moving a certain distance, the first hole expansion device retracts completely, completing the reset of the present invention. At this time, the processed MPP power pipe can be easily removed manually or mechanically to complete the unloading work.

[0058] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A flaring process for MPP power pipes, characterized in that, Includes the following steps: S1. Insert the heated MPP power pipe manually or mechanically into the first enlarged plate on the frame, and insert the MPP power pipe into the support baffle on the frame. S2. Control the first hole-expanding device to drive the first hole-expanding plate to expand the hole in the MPP power pipe; S3. After the first reaming plate of the first reaming device is fully extended, control the second reaming plate of the second reaming device to extend and ream the MPP power pipe. S4. Control the water spraying components to cool and shape the MPP power pipes; S5. First, control the second hole-expanding device to drive the second hole-expanding plate to retract. Then, control the first hole-expanding device to drive the first hole-expanding plate to retract. Then, remove the processed MPP power pipe manually or mechanically. The frame has a rotating bracket on the right side of the bracket baffle. A rotating block arranged in the left-right direction is rotatably connected to the rotating bracket. The outer side of the rotating block has a right stop edge located on the left and right sides of the rotating bracket. The left end of the rotating block has a left stop edge. The rotating block has a first slot with an opening at the right end. The rotating block has a second slot that penetrates to the left at the left end of the first slot. The outer circumference of the rotating block has a plurality of first axial grooves and a plurality of second axial grooves evenly spaced. The plurality of first axial grooves and the plurality of second axial grooves are arranged sequentially and spaced along the outer circumference of the rotating block. The frame has a positioning bracket on the right side of the rotating bracket. The positioning bracket has a mounting hole that penetrates from left to right. The mounting hole is coaxial with the rotating block. A first control component connected to a first hole-expanding device and a second control component connected to a second hole-expanding device are slidably connected in the left-right direction in the mounting hole. A shaft is slidably connected between the first control component and the second control component in the left-right direction. The first hole-expanding device includes a first rotating ring, and a first annular groove is provided on the outer side of the first control component. The first rotating ring is rotatably connected in the first annular groove. A first sliding plate is slidably connected in a first axial groove at the left end of the first rotating ring. A first connecting block is provided at the left end of the first sliding plate. Two first connecting rods are hinged on the first connecting block. The ends of the two first connecting rods are hinged to a first hinge block of the first hole-expanding plate. The second hole-expanding device includes a second rotating ring, and a second annular groove is provided on the outer side of the second control component. The second rotating ring is rotatably connected in the second annular groove. A second sliding plate is slidably connected in a second axial groove at the left end of the second rotating ring. A second connecting block is provided at the left end of the second sliding plate. Two second connecting rods are hinged on the second connecting block. The ends of the two second connecting rods are hinged to a second hinge block of the second hole-expanding plate. The shaft has a first radial hole, in which a first sliding pin is slidably connected. The first control component has a second radial hole, in which a second sliding pin is located. The second control component has a third radial hole, in which a third sliding pin is located. Both ends of the first, second, and third sliding pins are hemispherical. The inner wall of the mounting hole has a left first positioning hole for the second sliding pin to extend into, and a left second positioning hole and a right positioning hole for the third sliding pin to extend into. The first control component has a first positioning hole and a first positioning groove for the first sliding pin to extend into, and the second control component has a second positioning hole for the first sliding pin to extend into. The outer side of the shaft has a third positioning hole for the second sliding pin to extend into, and a fourth positioning hole for the third sliding pin to extend into. The outer side of the left end of the shaft is provided with a spiral groove, and the inner side wall of the second groove is provided with a protrusion for extending into the spiral groove. When the shaft moves to the left and the protrusion enters the spiral groove, as the shaft continues to move to the left, the protrusion and the spiral groove cooperate to drive the rotating block to rotate. The frame is provided with a mounting plate, and a first electric push rod is fixedly mounted on the mounting plate. The telescopic end of the first electric push rod is fixedly connected to the right end of the shaft.

2. The MPP power pipe flaring process according to claim 1, characterized in that, When the first slide plate moves to the left and the left end of the first expanding plate abuts against the left stop, as the first slide plate continues to move to the left, the two first connecting rods drive the first expanding plate away from the rotating block and unfold. When the left end of the first control component abuts against the left end of the first slot, the first slide plate stops moving. When the first slide plate moves from left to right, because the right end of the first expanding plate abuts against the left side of the bracket baffle, as the first slide plate moves to the right, the two first connecting rods drive the first expanding plate to approach the rotating block and retract.

3. The MPP power pipe flaring process according to claim 2, characterized in that, When the second slide plate moves to the left and the left end of the second expansion plate abuts against the left stop, as the second slide plate continues to move to the left, the two second connecting rods drive the second expansion plate away from the rotating block and unfold. When the left end of the second control component abuts against the left end of the first slot, the second slide plate stops moving. When the second slide plate moves from the left end to the right, because the right end of the second expansion plate abuts against the left side of the bracket baffle, as the second slide plate moves to the right, the two second connecting rods drive the second expansion plate to approach the rotating block and retract.

4. The MPP power pipe flaring process according to claim 3, characterized in that, When the first sliding pin is in the first positioning hole and the second sliding pin is in the third positioning hole, and the third sliding pin is in the left second positioning hole, the shaft is in the right end position. As the shaft moves to the left, the shaft drives the first control component to move to the left through the first and second sliding pins, controlling the first expanding plate of the first expanding device to unfold. When the left end of the first control component abuts against the left end of the first slot, the first control component stops moving. As the shaft continues to move to the left, the first sliding pin disengages from the first positioning hole and enters the second positioning hole, and the second sliding pin disengages from the third positioning hole and enters the left first positioning hole, thus unfolding the first expanding plate of the first expanding device. The control component is fixedly connected to the positioning bracket. The third sliding pin disengages from the second positioning hole on the left and enters the fourth positioning hole. At this time, as the shaft moves to the left, the shaft drives the second control component to move to the left. When the left end of the second control component abuts against the left end of the first slot, the second control component stops moving. As the shaft continues to move to the left, the first sliding pin disengages from the second positioning hole and enters the first positioning groove. The third sliding pin disengages from the fourth positioning hole and enters the right positioning hole, fixing the second control component to the positioning bracket. At this time, as the shaft continues to move to the left to the left end position, the shaft drives the rotating block to rotate. As the shaft moves from the left end to the right, it drives the first sliding pin to the right end of the first positioning groove. As the shaft continues to move to the right, the first sliding pin disengages from the first positioning groove and enters the second positioning hole. The third sliding pin disengages from the right positioning hole and enters the fourth positioning hole, unlocking the second control component. As the shaft moves to the right, it drives the second control component to move to the right. When the second rotating ring abuts against the left side of the positioning bracket, the second control component stops moving. As the shaft continues to move to the right, the first sliding pin disengages from the second positioning hole and enters the first positioning hole. The second sliding pin disengages from the left first positioning hole and enters the third positioning hole, unlocking the first control component from the positioning bracket. The third sliding pin disengages from the fourth positioning hole and enters the left second positioning hole, fixing the second control component to the positioning bracket. At this time, as the shaft moves to the right, it drives the first control component to move to the right. When the first expanding plate abuts against the left end of the second expanding plate, the shaft moves to the right end.

5. The MPP power pipe flaring process according to claim 1, characterized in that, The water spraying assembly includes a top plate mounted on a frame, and the top plate is provided with a water spray nozzle located above the first hole enlarging device.

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