A magnesium alloy seamless pipe processing device

Abstract

The application relates to a magnesium alloy seamless pipe machining device which comprises a shell, first rollers, a displacement device, a third screw rod, inclined rollers, a top rod, a second supporting sleeve and heating plates. The shell is internally provided with a bar heating channel, a piercing channel and a displacement channel which are connected in series. A plurality of first rollers are uniformly distributed in the bar heating channel, the displacement device is slidingly arranged in the displacement channel, and the displacement device is opposite to the bar heating channel or the piercing channel through sliding. A group of inclined rollers are arranged in the piercing channel, and the piercing channel is internally provided with a top rod with a top head. A bar pushing device is arranged at the position opposite to the displacement channel and the piercing channel. A plurality of heating plates are uniformly distributed on the top surfaces of the bar heating channel and the displacement channel. The heating, heat preservation and piercing processes are all carried out in the same shell with the heat preservation function, the degree of automation is high, and the bar cooling range in the piercing process is not large, so that the piercing effect is not affected.

Description

Technical Field

[0001] This invention belongs to the field of pipe processing technology, specifically relating to a magnesium alloy seamless pipe processing device. Background Technology

[0002] Seamless pipes are made by piercing a whole round bar and have no weld seams on the surface. They are superior to welded pipes in terms of pressure resistance and other properties, and are therefore widely used in high-pressure oil and gas pipelines.

[0003] Magnesium alloys are lightweight and have good electromagnetic shielding properties, which is why they are gradually replacing materials such as steel and aluminum alloys in many fields. However, currently extruded magnesium alloy pipes are all oil-sealed pipes, which cannot meet the usage conditions of some special scenarios. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a magnesium alloy seamless tube processing device. The heating, heat preservation and piercing processes of the present invention are all carried out in the same heat preservation shell, which has a high degree of automation and does not need to worry about the large temperature drop of the bar during the piercing process affecting the piercing effect.

[0005] The technical solution adopted by this invention to solve the problems existing in the prior art is:

[0006] A magnesium alloy seamless tube processing device includes a housing, a first roller, a shifting device, a third screw, an inclined roller, a top rod, a second support sleeve, and a heating plate.

[0007] The shell has a rod heating channel and a perforation channel arranged in parallel inside. One side of the rod heating channel is connected to the feed port on the end face of the shell, and the other side is connected to the perforation channel through a displacement channel. The shell has a discharge port on the side. The displacement channel, the perforation channel and the discharge port are connected through an inclined discharge channel.

[0008] A sealing door is provided at the discharge port on the side of the shell, and a second electric cylinder is connected to the outer end face of the sealing door.

[0009] Several first rollers are evenly distributed inside the bar heating channel. The two ends of the intermediate shaft of the first roller are respectively inserted into the inner walls on both sides of the bar heating channel. A pulley is fixed to the end of the intermediate shaft on one side. A first synchronous belt is sleeved on the outside of the pulley. One of the pulleys is fixedly connected to the output shaft of the second motor.

[0010] The shifting device is slidably installed inside the shifting channel, and the shifting device is made to be opposite to the bar heating channel or the perforation channel by sliding.

[0011] Inside the perforated channel is a set of two matching inclined rollers, and two seventh motors drive the two inclined rollers to rotate respectively.

[0012] The perforated channel is equipped with a push rod. One end of the push rod facing the inclined roller has a top head, and the other end is fixedly connected to the inner wall of the perforated channel. The diameter of the larger end of the top head is larger than the outer diameter of the push rod.

[0013] A second support plate is fitted onto the top rod. The bottom surface of the second support plate contacts the bottom surface of the perforated channel. The second support plate is fixedly connected to the traction device via a connecting rod. The traction device drives the second support plate to slide along the top rod.

[0014] A pusher device is provided at the position opposite to the displacement channel and the perforation channel.

[0015] Several heating plates are evenly distributed on the top surface of the heating channel and the displacement channel of the bar.

[0016] Preferably, the perforated channel has a rolling chamber inside, and the two inclined rollers and the mandrel are all located inside the rolling chamber.

[0017] A receiving plate is fixed to the outside of the housing below the discharge port, and the second electric cylinder is fixedly connected to the receiving plate.

[0018] Preferably, a pulley is fixed to the end of the intermediate shaft on the side of the first roller facing away from the perforation channel.

[0019] The displacement device includes a base plate, a second roller, and a bracket. The bottom surface of the base plate is in contact with the bottom surface of the displacement channel. Several brackets are fixed to both sides of the base plate in a corresponding manner. The second roller is rotatably disposed between two opposing brackets. A pulley is fixed to the end of the intermediate shaft on the side of the second roller facing away from the perforated channel.

[0020] The first roller and the pulley on the second roller are together fitted with a first synchronous belt. Each end of the first synchronous belt is provided with a tensioning pulley, and one of the tensioning pulleys is fixedly connected to the output shaft of the second motor.

[0021] A second screw is threaded through the base plate and connected to it. One end of the second screw is fixedly connected to the output shaft of the third motor, and the third motor is fixedly connected to the inner wall of the housing.

[0022] Preferably, the first synchronous belt opposite to the shifting channel is provided with two sets of expanding wheel devices, which are located on both sides of the shifting device.

[0023] The tensioning device includes a lower tensioning roller, an upper tensioning roller, a lower slider, an upper slider, an intermediate sleeve, a first rotating shaft, and a fifth motor.

[0024] The lower tensioning roller contacts the first synchronous belt at the bottom, and the upper tensioning roller contacts the first synchronous belt at the top. Two lower sliders are respectively sleeved on both ends of the lower tensioning roller, and two upper sliders are respectively sleeved on both ends of the upper tensioning roller. The lower slider and the upper slider on the same side are together sleeved with an intermediate sleeve, and the outer wall of the intermediate sleeve is fixedly connected to the inner wall of the housing.

[0025] The first rotating shaft passes through two intermediate sleeves, and two elliptical wheels are provided on the first rotating shaft. The elliptical wheels are located between the lower slider and the upper slider.

[0026] The fifth motor is fixedly connected to the outer wall of the intermediate sleeve, and the output shaft of the fifth motor is fixedly connected to the first rotating shaft.

[0027] Preferably, a set of timing belt limit wheels is provided on the first timing belt opposite to the junction of the bar heating channel and the displacement channel.

[0028] The timing belt limit wheel assembly includes two limit wheels that contact the first timing belt. The upper limit wheel is located above the top of the first timing belt, and the lower limit wheel is located below the bottom of the first timing belt.

[0029] The central shafts of the two limit wheels are respectively inserted into the inner wall of the housing.

[0030] Preferably, the length of the heating channel for the bar is n times the length of the shifting device, where n is greater than 1.

[0031] The bar heating channel is equipped with several rotating devices, and the distance between two adjacent rotating devices is the same as the length of the displacement device.

[0032] The rotating device includes an inner ring, an arc-shaped locking plate, a lower pressure ring, an upper pressure ring, a lower telescopic device, an upper telescopic device, a ferrule, and a second synchronous belt.

[0033] The inner ring has a second synchronous belt fitted at one end of its outer circumference, a retainer fitted at the other end, and semi-circular lower pressure rings and upper pressure rings respectively on the upper and lower sides in the middle.

[0034] The inner ring has several locking plates arranged in a ring array around the inner ring axis in the middle position. The side of the locking plate facing away from the inner ring axis is provided with a slide rod. The axial direction of the slide rod is consistent with the radial direction of the inner ring. The end of the slide rod passes through to the outside of the inner ring and is fixed with a pressure plate.

[0035] The pressure plate is located between the inner ring, the upper pressure ring, and the lower pressure ring.

[0036] The lower telescopic device is located below the lower pressure ring, and the top of the piston rod of the lower telescopic device is fixedly connected to the lower pressure ring.

[0037] The upper telescopic device is located above the upper pressure ring, and the bottom of the piston rod of the upper telescopic device is fixedly connected to the upper pressure ring.

[0038] A limiting ring is protruding on the outer circumferential surface of the inner ring. The limiting ring is inserted into the sleeve, and the sleeve is fixedly connected to the inner wall of the heating channel of the bar through a fixing rod.

[0039] The second synchronous belt is fitted at one end outside the inner ring and at the other end with a drive wheel, which is fixedly connected to the output shaft of the fourth motor.

[0040] Preferably, the pusher device includes a third screw and a pusher plate.

[0041] The third screw is positioned above the displacement channel, with one end of the third screw extending towards the perforation channel to the top of the inclined roller, and the other end of the third screw facing away from the perforation channel being fixedly connected to the output shaft of the sixth motor.

[0042] The push plate is threadedly connected to the third screw.

[0043] Preferably, the perforated channel is provided with a first support plate, which is located between the inclined roller and the displacement channel.

[0044] A column is provided at each of the two ends below the first support plate. A second rotating shaft is provided between the two columns and the first support plate. A first electric cylinder is provided at the bottom of the first support plate. The end of the piston rod of the first electric cylinder is fixedly connected to the end face of the first support plate away from the discharge channel.

[0045] Preferably, the traction device includes a third synchronous belt, a tensioning pulley group, and an eighth motor.

[0046] The third synchronous belt is arranged parallel to one side of the perforated channel. The tensioning wheel group includes two tensioning wheels, which are located on both sides inside the third synchronous belt. The output shaft of the eighth motor is fixedly connected to any one of the tensioning wheels.

[0047] The connecting rod is fixedly connected to the third synchronous belt.

[0048] Several third support plates are fitted onto the top rod, and the second support plate is located between the third support plate and the top head.

[0049] Connecting ropes are fixed between two adjacent third support plates and between the third support plate and the second support plate.

[0050] The bottom surface of the perforated channel is recessed with a slide rail, and the bottom of the second support plate and the third support plate are slidably set inside the slide rail.

[0051] Preferably, a hopper is provided on one side of the shell inlet, and a downwardly inclined chute is connected through one side of the bottom of the hopper, with a sliding groove opened on the end face of the chute.

[0052] A first motor is fixed on the inclined groove end face where the slide is opened. The output shaft of the first motor is connected to a first screw. A threaded sliding plate is fitted on the first screw. One end of the sliding plate passes through the slide and is placed inside the inclined groove.

[0053] The bottom of the end face opposite to the shell of the inclined groove is provided with a discharge hole, which is connected to the inlet of the shell.

[0054] Compared with the prior art, the present invention has the following beneficial effects:

[0055] (1) The heating and piercing processes of the bar are carried out in the same heat-insulating shell, so there is no need to worry about the bar cooling down significantly during the piercing process, which would affect the piercing effect.

[0056] (2) During the heating process of the bar, the rotating device can drive the bar to rotate, making the bar heated more evenly.

[0057] (3) Automatic feeding can be achieved through the hopper, improving the overall level of automation. Attached Figure Description

[0058] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0059] Figure 1 This is an external view of a magnesium alloy seamless tube processing device according to the present invention.

[0060] Figure 2 This is a vertical sectional view of the radial center position of the guide rail of the present invention.

[0061] Figure 3 This is a vertical sectional view of the position of the axis of the perforated rod of the present invention.

[0062] Figure 4 This is a horizontal sectional view of the center position of the housing of the present invention.

[0063] Figure 5 This is a vertical sectional view of the middle part of the sealing door of the present invention.

[0064] Figure 6 for Figure 5 Enlarged view of a portion of point A in the middle.

[0065] Figure 7 This is a vertical sectional view of the roller section of the present invention.

[0066] Figure 8 for Figure 7 Enlarged view of a section at point B in the middle.

[0067] Figure 9 This is a vertical sectional view of the middle position of the shifting device of the present invention.

[0068] Figure 10 for Figure 9 Enlarged view of a section at point C.

[0069] Figure 11 This is a vertical sectional view of the hopper baffle of the present invention.

[0070] Figure 12 for Figure 11 Enlarged view of a section at point D.

[0071] Figure 13 This is an external view of the silo of the present invention.

[0072] Figure 14 for Figure 13 Enlarged view of a section at point E in the middle.

[0073] Figure 15 This is a diagram showing the connection positions of the various components inside the housing of the present invention.

[0074] Figure 16 for Figure 15 Schematic diagram of the shifting device after displacement.

[0075] Figure 17 for Figure 16 Enlarged view of a section at point F in the middle.

[0076] Figure 18 This is a vertical sectional view of the support device of the present invention at the center position along its length.

[0077] Figure 19 This is a vertical sectional view of the support device of the present invention at the center position in the width direction.

[0078] Figure 20 This is an external view of the rotating device of the present invention.

[0079] Figure 21 This is a vertical sectional view of the axial center position of the rotating device of the present invention.

[0080] Figure 22 for Figure 21 Enlarged view of a section at point G in the middle.

[0081] Figure 23 This is a vertical sectional view of the radial center position of the rotating device of the present invention.

[0082] Figure 24 This is an external view of the expanding wheel device of the present invention.

[0083] Figure 25 This is a vertical sectional view of the expansion wheel device of the present invention.

[0084] Figure 26 This is a structural diagram of the drive mechanism of the expanding wheel device of the present invention.

[0085] Figure 27 This is an external view of the shifting device of the present invention.

[0086] Figure 28 for Figure 15 Enlarged view of a section at point H in the middle.

[0087] Figure 29 for Figure 11 Enlarged view of section I in the middle.

[0088] In the diagram: 1-Shell, 101-Bar heating channel, 102-Shifting channel, 103-Piercing channel, 104-Rolling chamber, 105-Discharge channel, 106-Receiving plate, 2-Hopper, 201-Inclined groove, 2011-Slide groove, 2012-Discharge hole, 202-First screw, 2021-First motor, 2022-Slide plate, 203-Support leg, 204-First telescopic rod, 205-Support sleeve, 3-First roller, 4- First synchronous belt, 401-Second motor, 5-Shifting device, 501-Base plate, 502-Second roller, 503-Bracket, 6-Second screw, 601-Third motor, 7-Rotating device, 701-Inner ring, 7011-Limiting ring, 702-Locking plate, 7021-Slide rod, 7022-Pressure plate, 7023-First spring, 703-Lower pressure ring, 704-Upper pressure ring, 705-Lower telescopic device, 706-Upper telescopic device 707-Coupled sleeve, 7071-Fixing rod, 708-Second synchronous belt, 7081-Fourth motor, 8-Synchronous belt limit pulley set, 9-Expanding wheel device, 901-Lower tensioning roller, 902-Upper tensioning roller, 903-Lower slider, 904-Upper slider, 905-Intermediate sleeve, 906-First rotating shaft, 9061-Elliptical wheel, 907-Fifth motor, 10-Third screw, 1001-Sixth motor, 11-Push plate, 12-First support Support plate, 1201-Column, 1202-First electric cylinder, 1203-Second rotating shaft, 13-Inclined roller, 1301-Seventh motor, 14-Top rod, 1401-Top head, 15-Second support plate, 1501-Connecting rod, 16-Third support plate, 17-Connecting rope, 18-Third synchronous belt, 1801-Tensioning wheel assembly, 1802-Eighth motor, 19-Sealing door, 1902-Second electric cylinder, 20-Heating plate, 21-Bar stock. Detailed Implementation

[0089] The attached figure shows the preferred embodiment of the magnesium alloy seamless tube processing device. The invention will be further described in detail below with reference to the attached figure.

[0090] From the appendix Figure 1 To be continued Figure 10 As shown, a magnesium alloy seamless tube processing device includes a housing 1, a first roller 3, a shifting device 5, a third screw 10, an inclined roller 13, a top rod 14, a second support sleeve 15, heating plates 20, and an electrical control cabinet. Several heating plates 20 are evenly distributed on the top surface of the bar heating channel 101 and the shifting channel 102.

[0091] The shell 1 consists of an outer shell, an insulation material layer, and an inner wall, arranged from the outside to the inside. The inner wall is made of a high-temperature resistant alloy material. Inside the shell 1, there are parallel rod heating channels 101 and perforated channels 103. One side of the rod heating channel 101 is connected to the feed port on the end face of the shell 1, and the other side is connected to the perforated channel 103 through a displacement channel 102.

[0092] The housing 1 has a discharge port on its side, the height of which is lower than the height of the shifting channel 102 and the perforation channel 103. The shifting channel 102, the perforation channel 103, and the discharge port are connected through a downwardly inclined discharge channel 105. A sealing door 19 is provided at the discharge port on the side of the housing 1, and a second electric cylinder 1902 is connected to the outer end face of the sealing door 19. The piston rod of the second electric cylinder 1902 is fixedly connected to the outer end face of the sealing door 19, and the opening and closing of the sealing door 19 is controlled by controlling the extension and retraction of its piston rod. In order to facilitate the receiving of the perforated seamless tube discharged from the discharge port, a receiving plate 106 is fixedly installed on the outside of the housing 1 below the discharge port, and the second electric cylinder 1902 is fixedly connected to the receiving plate 106.

[0093] Several first rollers 3 are evenly distributed inside the bar heating channel 101 along the length direction of the bar heating channel 101, and the axis of the first rollers 3 is perpendicular to the length direction of the bar heating channel 101.

[0094] The two ends of the intermediate shaft of the first roller 3 are respectively inserted into the inner walls of the two sides of the bar heating channel 101. A pulley is fixed to the end of the intermediate shaft of the first roller 3 on the side facing away from the perforation channel 103. The shifting device 5 is slidably disposed inside the shifting channel 102, and the shifting device 5 is made to be opposite to the bar heating channel 101 or the perforation channel 103 by sliding.

[0095] From the appendix Figure 27 As shown, the shifting device 5 includes a base plate 501, a second roller 502, and a bracket 503. The length of the shifting device 5 is greater than or equal to the length of a single rod 21. The bottom surface of the base plate 501 contacts the bottom surface of the shifting channel 102. Several brackets 503 are fixed one-to-one on both sides of the base plate 501. The two ends of the intermediate shaft of the second roller 502 are respectively inserted into the two oppositely arranged brackets 503, so that the second roller 502 is rotatably positioned between the two oppositely arranged brackets 503. A pulley is fixed to the end of the intermediate shaft on the side of the second roller 502 facing away from the perforated channel 103.

[0096] The pulleys on the first roller 3 and the second roller 502 are together fitted with the first synchronous belt 4. Each end of the first synchronous belt 4 is provided with a tensioning pulley. One of the tensioning pulleys is fixedly connected to the output shaft of the second motor 401. The second motor 401 is fixedly connected to the inner wall of the housing 1.

[0097] A second screw 6 is threaded through the base plate 501. One end of the second screw 6 is fixedly connected to the output shaft of the third motor 601, and the third motor 601 is fixedly connected to the inner wall of the housing 1. When the second screw 6 rotates, it causes the base plate 501 to slide inside the displacement channel 102, so that the second roller 502 is opposite to the first roller 3 or the through channel 103.

[0098] The first roller 3 and the second roller 502 are mounted on the same horizontal plane. When the first roller 3 and the second roller 502 rotate, they drive the bar 21 above them to move. To prevent the bar 21 from deviating during movement, both the first roller 3 and the second roller 502 are dumbbell-shaped.

[0099] From the appendix Figure 24 and appendix Figure 25 As shown, the first synchronous belt 4, which is opposite to the shift channel 102, is equipped with two sets of expanding wheel devices 9, which are located on both sides of the shift device 5.

[0100] The tensioning device 9 includes a lower tensioning roller 901, an upper tensioning roller 902, a lower slider 903, an upper slider 904, an intermediate sleeve 905, a first rotating shaft 906, and a fifth motor 907.

[0101] The lower tension roller 901 is located above and in contact with the first synchronous belt 4 at the bottom. The upper tension roller 902 is located below and in contact with the first synchronous belt 4 at the top. Two lower sliders 903 are respectively sleeved on both ends of the lower tension roller 901, and two upper sliders 904 are respectively sleeved on both ends of the upper tension roller 902. A middle sleeve 905 is fitted around the lower sliders 903 and 904 on the same side, and the outer wall of the middle sleeve 905 is fixedly connected to the inner wall of the housing 1. The lower tension roller 901 is rotatably connected to the lower sliders 903, and the upper tension roller 902 is rotatably connected to the upper sliders 904. The lower sliders 903 and 904 are slidably connected to the middle sleeve 905.

[0102] The first rotating shaft 906 passes through two intermediate sleeves 905. The first rotating shaft 906 is provided with two elliptical wheels 9061. The two elliptical wheels 9061 are located inside the two intermediate sleeves 905 respectively. The elliptical wheels 9061 are located between the lower slider 903 and the upper slider 904.

[0103] The fifth motor 907 is fixedly connected to the outer wall of the intermediate sleeve 905, and the output shaft of the fifth motor 907 is fixedly connected to the first rotating shaft 906.

[0104] Under normal circumstances, the short-radius end face of the elliptical wheel 9061 contacts the lower slider 903 and the upper slider 904. However, when the shifting device 5 needs to slide to one side of the perforated channel 103, the fifth motor 907 starts and drives the first rotating shaft 906 to rotate, so that the long-radius end face of the elliptical wheel 9061 contacts the lower slider 903 and the upper slider 904, driving the lower slider 903 and the upper slider 904 to slide. The lower tensioning roller 901 and the upper tensioning roller 902 expand the first synchronous belt 4 and disengage it from the pulley of the second roller 502, making it easier for the pulley to enter and exit the first synchronous belt 4.

[0105] After the expanding device 9 expands the first synchronous belt 4, in order to avoid affecting the rotation of the first roller 3 driven by the first synchronous belt 4, a synchronous belt limiting wheel group 8 is provided on the first synchronous belt 4 opposite to the junction of the bar heating channel 101 and the displacement channel 102.

[0106] The timing belt limiting pulley assembly 8 includes two limiting pulleys that contact the first timing belt 4. The upper limiting pulley is located above the top of the first timing belt 4, and the lower limiting pulley is located below the bottom of the first timing belt 4. The central shafts of the two limiting pulleys are respectively inserted into the inner wall of the housing 1. The timing belt limiting pulley assembly 8 ensures that the first timing belt 4 is always in contact with the pulley of the first roller 3.

[0107] In order to achieve staged heating of the bar 21, the length of the bar heating channel 101 is designed to be n times the length of the shifting device 5, where n is greater than 1.

[0108] Meanwhile, to ensure more uniform heating of the rod 21, an additional... Figure 20 To be continued Figure 23 As shown, the bar heating channel 101 is equipped with several rotating devices 7, and the distance between two adjacent rotating devices 7 is the same as the length of the shifting device 5.

[0109] The rotating device 7 includes an inner ring 701, an arc-shaped locking plate 702, a lower pressure ring 703, an upper pressure ring 704, a lower telescopic device 705, an upper telescopic device 706, a ferrule 707, and a second synchronous belt 708.

[0110] The inner ring 701 has a second synchronous belt 708 fitted at one end of its outer circumferential surface, a retainer 707 fitted at the other end, and a semi-circular lower pressure ring 703 and an upper pressure ring 704 respectively on the upper and lower sides in the middle.

[0111] The inner ring 701 has several locking plates 702 arranged in a circular array around its axis at its center. Each locking plate 702 has a sliding rod 7021 on its side facing away from the axis of the inner ring 701. The axial direction of the sliding rod 7021 is consistent with the radial direction of the inner ring 701. The end of the sliding rod 7021 extends to the outside of the inner ring 701 and is fixed with a pressure plate 7022. The pressure plate 7022 is located between the inner ring 701 and the upper pressure ring 703 and the lower pressure ring 704.

[0112] The lower telescopic device 705 is located below the lower pressure ring 703, and the top of the piston rod of the lower telescopic device 705 is fixedly connected to the lower pressure ring 703.

[0113] The upper telescopic device 706 is located above the upper pressure ring 704, and the bottom of the piston rod of the upper telescopic device 706 is fixedly connected to the upper pressure ring 704.

[0114] A limiting ring 7011 is protruding on the outer circumferential surface of the inner ring 701. The limiting ring 7011 is inserted into the sleeve 707. The sleeve 707 is fixedly connected to the inner wall of the bar heating channel 101 through the fixing rod 7071.

[0115] The second synchronous belt 708 is fitted at one end outside the inner ring 701 and at the other end with a drive wheel, which is fixedly connected to the output shaft of the fourth motor 7081.

[0116] The lower telescopic device 705 and the upper telescopic device 706 can be hydraulic cylinders, pneumatic cylinders, or electric cylinders. When their piston rods extend, the lower pressure ring 703 and the upper pressure ring 704 merge into a complete circle. Simultaneously, the pressure plate 7022 is squeezed, causing the locking plate 702 to move axially towards the inner ring 701. Several locking plates 702 tightly hold the middle rod 21. The fourth motor 7081 is activated, driving the inner ring to rotate. The inner ring drives the locking plate 702 to rotate, which in turn drives the rod 21 to rotate, ensuring uniform heating of the rod 21. The retaining sleeve 707 ensures that the inner ring 701 can only rotate around its axis and cannot move.

[0117] The piercing channel 103 is equipped with a set of two matching inclined rollers 13, and two seventh motors 1301 drive the two inclined rollers 13 to rotate respectively. A push rod 14 is provided inside the piercing channel 103. One end of the push rod 14 facing the inclined rollers 13 has a top head 1401, and the other end is fixedly connected to the inner wall of the piercing channel 103. The larger diameter of the top head 1401 is larger than the outer diameter of the push rod 14. The arrangement, spacing, included angle, and relative position of the two inclined rollers 13 with the top head 1401 all adopt existing technology and are identical to the working principle, working method, and structure of existing bar piercing machines.

[0118] Since the inclined rollers 13 require a large space, a rolling chamber 104 is provided inside the perforation channel 103, and the two inclined rollers 13 and the mandrel 1401 are all located inside the rolling chamber 104.

[0119] A second support plate 15 and several third support plates 16 are fitted onto the top rod 14. The second support plate 15 is located between the third support plates 16 and the top head 1401. A high-temperature resistant connecting rope 17 is fixed between two adjacent third support plates 16 and between the third support plate 16 and the second support plate 15. The connecting rope 17 can also be made of steel wire rope.

[0120] The bottom surface of the perforated channel 103 is recessed with a slide, and the bottom of the second support plate 15 and the third support plate 16 are slidably disposed inside the slide.

[0121] A support sleeve protrudes from one end of the downward-facing top head 1401 on the second support plate 15. The support sleeve is fitted onto the top rod 14, and the outer diameter of the support sleeve is the same as the large end diameter of the top head 1401. After the rod 21 is pierced through the top head 1401, the outer diameter of its central hole is the same as the large end diameter of the top head 1401. Its front end after piercing continues to move forward and fits outside the support sleeve of the second support plate 15. The support sleeve of the second support plate 15 and the top head 1401 together support the pierced rod 21 to prevent the rod 21 from swinging or becoming eccentric.

[0122] Because the top rod 14 is relatively long, the third support plates 16 are arranged at intervals to support the top rod 14, effectively preventing the top rod 14 from bending.

[0123] The second support plate 15 is fixedly connected to the traction device via the connecting rod 1501, and the traction device drives the second support plate 15 to slide along the top rod 14.

[0124] The traction device includes a third synchronous belt 18, a tensioning pulley group 1801, and an eighth motor 1802.

[0125] The third synchronous belt 18 is arranged in parallel on one side of the perforated channel 103. The tensioning wheel group 1801 includes two tensioning wheels, which are located on both sides inside the third synchronous belt 18. The output shaft of the eighth motor 1802 is fixedly connected to any one of the tensioning wheels.

[0126] The connecting rod 1501 of the second support plate 15 is fixedly connected to the third synchronous belt 18.

[0127] During the piercing process of the bar 21, the bar 21 pushes the second support plate 15 towards the third support plate 16. The second support plate 15 and the third support plate 16 jointly support the bar 21 and the push rod 14, keeping them concentric. After the piercing process is completed, the eighth motor 1802, which is fixedly connected to the inner wall of the housing 1, starts and quickly drives the second support plate 15 towards the push head 1401 via the third synchronous belt 18 and the connecting rod 1501. Then, the second support sleeves 16 are pulled back one by one by the connecting rope 17. This continues until the second support plate 15 hits the push head 1401, and then the pierced bar 21 is pushed into the discharge channel 105 by inertia. The sealing door 19 opens, and the bar 21 rolls onto the receiving plate 106, which the operator can then remove for the next process.

[0128] A pusher device is provided at the position opposite to the perforation channel 103 in the shift channel 102. The pusher device includes a third screw 10 and a push plate 11.

[0129] The third screw 10 is located above the displacement channel 102 and the perforation channel 103. One end of the third screw 10 extends towards the perforation channel 103 and above the inclined roller 13. The other end (i.e. the end facing away from the perforation channel 103) is located at the rear end of the displacement channel 102 and is fixedly connected to the output shaft of the sixth motor 1001. The sixth motor 1001 is fixedly connected to the inner wall of the housing 1.

[0130] The push plate 11 is threadedly connected to the third screw 10. A cylindrical pusher plate protrudes from the end face of the push plate 11 facing the piercing channel 103. The outer diameter and height of the pusher plate are the same as the outer diameter and height of the bar 21. The shifting device 5 moves the heated and insulated bar 21 to directly below the third screw 10. The sixth motor 1001 starts, and the rotating third screw 10 drives the push plate 11 to move towards the bar 21. After the pusher plate contacts the bar 21, it continues to push the bar 21 into the middle of the two inclined rollers 13 for rolling and piercing.

[0131] Because the shifting device 5 is spaced apart from the inclined roller 13, to prevent the bar 21 from falling, a first support plate 12 is provided inside the perforated channel 103. The first support plate 12 is located between the inclined roller 13 and the shifting channel 102. After the bar 21 moves above the first support plate 12, its bottom contacts the top surface of the first support plate 12.

[0132] From the appendix Figure 18 and appendix Figure 19 As shown, a column 1201 is provided at each of the two ends below the first support plate 12. A second rotating shaft 1203 is provided between the two columns 1201 and the first support plate 12. A first electric cylinder 1202 is provided at the bottom of the first support plate 12. The end of the piston rod of the first electric cylinder 1202 is fixedly connected to the end face of the first support plate 12 away from the discharge channel 105.

[0133] After the bar 21 is pierced and pushed out, the first electric cylinder 1202 controls the piston rod to rise, causing the first support plate 12 to rotate around the second rotating shaft 1203, pushing the bar 21 into the discharge channel 105.

[0134] To enable automated feeding, a hopper 2 is provided on one side of the feed inlet of the casing 1. (The last sentence appears to be incomplete and possibly refers to a separate process.) Figure 11 To be continued Figure 14 As shown, a downwardly inclined groove 201 is connected to one side of the bottom of the silo 2, and a sliding groove 2011 is provided on the end face of the inclined groove 201.

[0135] A first motor 2021 is fixed to the end face of the inclined groove 201, which has a sluice 2011. The output shaft of the first motor 2021 is connected to a first screw 202, which is parallel to the sluice 2011. A threaded sliding plate 2022 is fitted onto the first screw 202, with one end of the sliding plate 2022 passing through the sluice 2011 and residing inside the inclined groove 201. A discharge hole 2012 is provided at the bottom of the end face of the inclined groove 201 opposite to the housing 1, and the discharge hole 2012 is connected to the feed inlet of the housing 1.

[0136] To further support the first screw 202, a support sleeve 205 is fixed on the inclined groove 201, and a portion of the first screw 202 is inserted into the support sleeve 205.

[0137] Meanwhile, two first telescopic rods 204 are arranged at intervals on the bottom or top surface of the inclined groove 201. The extension and retraction of the first telescopic rods 204 are controlled by electric cylinders, pneumatic cylinders, or hydraulic cylinders. The ends of the first telescopic rods 204 extend into the interior of the inclined groove 201. A rod 21 is spaced between the two first telescopic rods 204. A rod 21 is spaced between the first telescopic rod 204 near the end face of the inclined groove 201 where the slide groove 2011 is formed and the end face of the inclined groove 201 where the slide groove 2011 is formed.

[0138] To detect temperature and the position of the rod 21, temperature sensors and position sensors are added at corresponding positions inside the housing 1. The position sensors can be thermal metal sensors or photoelectric sensors, etc. The working principle and structure of the temperature sensors and position sensors adopt prior art. All electrical components included in the seamless tube processing device are electrically connected to the electrical control cabinet.

[0139] The seamless tube perforation process includes the following steps:

[0140] A. The bar is placed into the hopper 2. The internal length of the hopper 2 and the internal length of the inclined groove 201 are the same as the length of a single bar 21. The internal height of the inclined groove 201 is the same as the diameter of the bar 21. The end of the first telescopic rod 204 retracts to the outside of the inclined groove 201, and the bar 21 rolls freely into the inclined groove 201 until it is filled. To facilitate the rolling of the bar 21 from the hopper 2 into the inclined groove 201, the bottom surface of the hopper 2 is set as an inclined surface.

[0141] B. The first motor 2021 starts, and the slide plate 2022 pushes the bar 21 through the discharge hole 2012 into the bar heating channel 101 for heating.

[0142] C. The heated bar 21 is moved above the shifting device 5 for heat preservation.

[0143] D. After heat preservation, the bar 21 is pushed into the side opposite to the piercing channel 103 by the shifting device 5, and then the pusher plate 11 pushes the bar 21 toward the inclined roller 13 to roll and pierce the bar 21.

[0144] E. When the bar 21 is completely disengaged from the shifting device 5, the shifting device 5 is reset to the side opposite to the bar heating channel 101.

[0145] F. The perforated bar 21 is pushed out by the second support plate 15 and then falls into the discharge channel 105, and enters the receiving plate 106 through the discharge port.

[0146] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A processing device for seamless magnesium alloy tubes, characterized in that: Includes a housing (1), a first roller (3), a shifting device (5), a third screw (10), an inclined roller (13), a top rod (14), a second support plate (15), and a heating plate (20). The shell (1) is provided with a rod heating channel (101) and a perforation channel (103) arranged in parallel inside. One side of the rod heating channel (101) is connected to the feed port on the end face of the shell (1), and the other side is connected to the perforation channel (103) through a displacement channel (102). The shell (1) is provided with a discharge port on the side. The displacement channel (102), the perforation channel (103) and the discharge port are connected through an inclined discharge channel (105). A sealing door (19) is provided at the discharge port on the side of the housing (1), and a second electric cylinder (1902) is connected to the outer end face of the sealing door (19). Several first rollers (3) are evenly distributed inside the bar heating channel (101). The two ends of the intermediate shaft of the first roller (3) are respectively inserted into the inner walls on both sides of the bar heating channel (101). A pulley is fixed to the end of the intermediate shaft on one side. A first synchronous belt (4) is sleeved on the outside of the pulley. One of the pulleys is fixedly connected to the output shaft of the second motor (401). The shifting device (5) is slidably disposed inside the shifting channel (102), and the shifting device (5) is made to face the bar heating channel (101) or the perforation channel (103) by sliding. The perforated channel (103) is equipped with a set of two matching inclined rollers (13), and two seventh motors (1301) drive the two inclined rollers (13) to rotate respectively. Inside the perforated channel (103) is a push rod (14). One end of the push rod (14) facing the inclined roller (13) is provided with a top head (1401), and the other end is fixedly connected to the inner wall of the perforated channel (103). The diameter of the large end of the top head (1401) is larger than the outer diameter of the push rod (14). A second support plate (15) is fitted onto the top rod (14). The bottom surface of the second support plate (15) contacts the bottom surface of the perforated channel (103). The second support plate (15) is fixedly connected to the traction device through the connecting rod (1501). The traction device drives the second support plate (15) to slide along the top rod (14). A pusher device is provided at the position opposite to the shifting channel (102) and the perforation channel (103). Several heating plates (20) are evenly distributed on the top surface of the bar heating channel (101) and the displacement channel (102).

2. The magnesium alloy seamless tube processing device according to claim 1, characterized in that: The perforated channel (103) is provided with a rolling chamber (104), and the two inclined rollers (13) and the mandrel (1401) are all located inside the rolling chamber (104). A receiving plate (106) is fixed on the outside of the housing (1) below the discharge port, and the second electric cylinder (1902) is fixedly connected to the receiving plate (106).

3. The magnesium alloy seamless tube processing device according to claim 1, characterized in that: A pulley is fixed to the end of the intermediate shaft on the side of the first roller (3) facing away from the perforated channel (103). The shifting device (5) includes a base plate (501), a second roller (502), and a bracket (503). The bottom surface of the base plate (501) is in contact with the bottom surface of the shifting channel (102). Several brackets (503) are fixed to both sides of the base plate (501) in a corresponding manner. The second roller (502) is rotatably disposed between two opposing brackets (503). A pulley is fixed to the end of the intermediate shaft on the side of the second roller (502) facing away from the perforated channel (103). The pulleys on the first roller (3) and the second roller (502) are together fitted with a first synchronous belt (4). Each end of the first synchronous belt (4) is provided with a tensioning pulley, one of which is fixedly connected to the output shaft of the second motor (401). A second screw (6) is threaded through the base plate (501), one end of which is fixedly connected to the output shaft of the third motor (601), and the third motor (601) is fixedly connected to the inner wall of the housing (1).

4. The magnesium alloy seamless tube processing device according to claim 3, characterized in that: The first synchronous belt (4) opposite to the shift channel (102) is equipped with two sets of expanding wheel devices (9), which are located on both sides of the shift device (5). The tensioning device (9) includes a lower tensioning roller (901), an upper tensioning roller (902), a lower slider (903), an upper slider (904), an intermediate sleeve (905), a first rotating shaft (906), and a fifth motor (907). The lower tension roller (901) contacts the first synchronous belt (4) at the bottom, and the upper tension roller (902) contacts the first synchronous belt (4) at the top. Two lower sliders (903) are respectively sleeved on both ends of the lower tension roller (901), and two upper sliders (904) are respectively sleeved on both ends of the upper tension roller (902). The lower sliders (903) and upper sliders (904) on the same side are together fitted with an intermediate sleeve (905). The outer wall of the intermediate sleeve (905) is fixedly connected to the inner wall of the housing (1). The first rotating shaft (906) passes through two intermediate sleeves (905). Two elliptical wheels (9061) are provided on the first rotating shaft (906). The elliptical wheels (9061) are located between the lower slider (903) and the upper slider (904). The fifth motor (907) is fixedly connected to the outer wall of the intermediate sleeve (905), and the output shaft of the fifth motor (907) is fixedly connected to the first rotating shaft (906).

5. The magnesium alloy seamless tube processing device according to claim 4, characterized in that: A timing belt limit wheel set (8) is provided on the first timing belt (4) opposite to the junction of the bar heating channel (101) and the displacement channel (102). The timing belt limit wheel assembly (8) includes two limit wheels that contact the first timing belt (4). The upper limit wheel is located above the top of the first timing belt (4), and the lower limit wheel is located below the bottom of the first timing belt (4). The central shafts of the two limiting wheels are respectively inserted into the inner wall of the housing (1).

6. A magnesium alloy seamless tube processing apparatus according to any one of claims 1 to 5, characterized in that: The length of the bar heating channel (101) is n times the length of the shifting device (5), where n is greater than 1. The bar heating channel (101) is equipped with several rotating devices (7), and the distance between two adjacent rotating devices (7) is the same as the length of the shifting device (5). The rotating device (7) includes an inner ring (701), an arc-shaped locking plate (702), a lower pressure ring (703), an upper pressure ring (704), a lower telescopic device (705), an upper telescopic device (706), a sleeve (707), and a second synchronous belt (708). The inner ring (701) has a second synchronous belt (708) fitted at one end of its outer circumferential surface, a retainer (707) fitted at the other end, and semi-circular lower pressure rings (703) and upper pressure rings (704) respectively on its upper and lower sides in the middle. The inner ring (701) has several locking plates (702) arranged in a ring array around its axis at the middle position. A sliding rod (7021) is provided on the side of the locking plate (702) facing away from the axis of the inner ring (701). The axial direction of the sliding rod (7021) is consistent with the radial direction of the inner ring (701). The end of the sliding rod (7021) extends to the outside of the inner ring (701) and is fixed with a pressure plate (7022). The pressure plate (7022) is located between the inner ring (701), the upper pressure ring (703), and the lower pressure ring (704). The lower telescopic device (705) is located below the lower pressure ring (703), and the top of the piston rod of the lower telescopic device (705) is fixedly connected to the lower pressure ring (703). The upper telescopic device (706) is located above the upper pressure ring (704), and the bottom of the piston rod of the upper telescopic device (706) is fixedly connected to the upper pressure ring (704). A limiting ring (7011) is protruding from the outer circumferential surface of the inner ring (701). The limiting ring (7011) is inserted into the sleeve (707). The sleeve (707) is fixedly connected to the inner wall of the bar heating channel (101) through a fixing rod (7071). One end of the second synchronous belt (708) is fitted outside the inner ring (701), and the other end is fitted with a drive wheel. The drive wheel is fixedly connected to the output shaft of the fourth motor (7081).

7. The magnesium alloy seamless tube processing device according to claim 6, characterized in that: The pusher device includes a third screw (10) and a pusher plate (11). The third screw (10) is positioned above the displacement channel (102). The end of the third screw (10) facing the perforation channel (103) extends above the inclined roller (13), and the end of the third screw (10) facing away from the perforation channel (103) is fixedly connected to the output shaft of the sixth motor (1001). The push plate (11) is threadedly connected to the third screw (10).

8. The magnesium alloy seamless pipe processing apparatus according to claim 6, characterized by : The perforated channel (103) is provided with a first support plate (12), which is located between the inclined roller (13) and the shifting channel (102). A column (1201) is provided at each of the two ends below the first support plate (12). A second rotating shaft (1203) is provided between the two columns (1201) and the first support plate (12). A first electric cylinder (1202) is provided at the bottom of the first support plate (12). The end of the piston rod of the first electric cylinder (1202) is fixedly connected to the end face of the first support plate (12) away from the discharge channel (105).

9. A magnesium alloy seamless tube processing device according to claim 6, characterized in that: The traction device includes a third synchronous belt (18), a tensioner pulley group (1801), and an eighth motor (1802). The third synchronous belt (18) is arranged parallel to one side of the perforated channel (103). The tensioning wheel assembly (1801) includes two tensioning wheels, which are located on both sides inside the third synchronous belt (18). The output shaft of the eighth motor (1802) is fixedly connected to either tensioning wheel. The connecting rod (1501) is fixedly connected to the third synchronous belt (18). Several third support plates (16) are fitted onto the top rod (14), and the second support plate (15) is located between the third support plate (16) and the top head (1401). A connecting rope (17) is fixed between two adjacent third support plates (16) and between the third support plate (16) and the second support plate (15). The bottom surface of the perforated channel (103) is recessed with a slide, and the bottom of the second support plate (15) and the third support plate (16) are slidably disposed inside the slide.

10. A magnesium alloy seamless tube processing device according to claim 6, characterized in that: A hopper (2) is provided on one side of the feed inlet of the shell (1). A downwardly inclined chute (201) is connected through one side of the bottom of the hopper (2). A sliding groove (2011) is provided on the end face of the chute (201). A first motor (2021) is fixed on the end face of the inclined groove (201) with a slide groove (2011). The output shaft of the first motor (2021) is connected to a first screw (202). A threaded sliding plate (2022) is fitted on the first screw (202). One end of the sliding plate (2022) passes through the slide groove (2011) and is located inside the inclined groove (201). The bottom of the end face of the inclined groove (201) opposite to the shell (1) is provided with a discharge hole (2012), which is connected to the feed port of the shell (1).

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