Corrugated pipe machining device

Abstract

The corrugated pipe machining device comprises a vertical table, in the using process of the corrugated pipe machining device, a vertically descending straight pipe can be smoothly inserted between an adjacent first pressurization clamping shell and an adjacent second pressurization clamping shell, and therefore it is guaranteed that the straight pipe is kept vertical when the interior of the straight pipe is pressed for corrugated machining; the arc-shaped cotton blocks in the inner cavities of the first pressurization clamping shells can gradually wrap and press the outer surface of the straight pipe, the pressurization locking effect of the adjacent first pressurization clamping shells on the outer surface of the straight pipe is improved, and when inner mold corrugation machining is conducted on the interior of the corrugated pipe, the first pressurization clamping shells can be controlled to be buckled on the outer surfaces of the spherical extrusion rubber blocks; meanwhile, in the machining process, the lubricating medium can reduce abrasion of the first pressurizing clamping shell to the surface of the straight pipe, and meanwhile, the lubricating medium flowing into the wave-shaped clamping shell can also reduce buckling and locking abrasion of the wave-shaped clamping shell to a corrugated area on the surface of the corrugated pipe; the corrugation processing effect on the surface of the corrugated pipe is improved.

Description

Technical Field

[0001] The invention relates to the technical field of bellows processing, in particular to a bellows processing device. Background Art

[0002] Bellows refers to a tubular elastic sensitive element connected by foldable corrugated sheets along the folding and stretching direction. Bellows are widely used in instruments and meters. Their main purpose is to be used as a measuring element of pressure measuring instruments to convert pressure into displacement or force. The wall of the bellows is thinner and the sensitivity is higher. The measuring range is from tens of Pa to tens of MPa. Its open end is fixed, the sealed end is in a free state, and an auxiliary spiral spring or reed is used to increase the elasticity. When working, it stretches along the length of the tube under the action of internal pressure, causing the movable end to produce a displacement that is related to the pressure. The movable end drives the pointer to directly indicate the size of the pressure. Bellows are often combined with displacement sensors to form pressure sensors with output as electrical quantity, and are sometimes used as isolation elements.

[0003] Bellows mainly include metal bellows, bellows expansion joints, bellows heat exchange tubes, diaphragm boxes and metal hoses. Metal bellows are mainly used to compensate for pipeline thermal deformation, shock absorption, and absorb pipeline settlement deformation. They are widely used in petrochemical, instrumentation, aerospace, chemical, electric power, water conservancy, metallurgy and other industries. Plastic and other materials of bellows play an irreplaceable role in media transportation, power threading, machine tools, home appliances and other fields.

[0004] Bellows: A pressure measuring elastic element in pressure measuring instruments. It is a cylindrical thin-walled corrugated shell with multiple transverse corrugations. The bellows is elastic and can produce displacement under the action of pressure, axial force, transverse force or bending moment. Bellows are widely used in instruments and meters. Their main purpose is to be used as a measuring element of pressure measuring instruments to convert pressure into displacement or force. The bellows have thin walls and high sensitivity, and the measuring range is from tens of Pa to tens of MPa. In addition, bellows can also be used as a sealing isolation element to separate two media or prevent harmful fluids from entering the measuring part of the equipment. It can also be used as a compensation element to compensate for the temperature error of the instrument by using its volume variability. Sometimes it is also used as an elastic connection joint between two parts. Bellows can be divided into metal bellows and non-metal bellows according to the constituent materials; they can be divided into single-layer and multi-layer according to the structure. Single-layer bellows are more widely used. Multi-layer bellows have high strength, good durability, and low stress, and are used in important measurements. The materials of bellows are generally bronze, brass, stainless steel, monel and inconel, etc.

[0005] The theoretical basis of metal bellows design is plate and shell theory, material mechanics, computational mathematics, etc. There are many parameters for bellows design. Due to the different uses of bellows in the system, the focus of its design calculation is also different. For example, bellows are used as force balance elements, requiring the effective area of ​​the bellows to remain unchanged or change very little within the working range. For measuring elements, the elastic characteristics of the bellows are required to be linear; for vacuum switch tubes as vacuum seals, the vacuum sealing, axial displacement and fatigue life of the bellows are required; for valves as seals, the bellows are required to have certain pressure resistance, corrosion resistance, temperature resistance, working displacement and fatigue life. According to the structural characteristics of the bellows, the bellows can be regarded as a torus shell, a flat cone shell or a torus plate. Designing and calculating bellows is to design and calculate a circular shell, a flat cone shell or a torus plate.

[0006] The production of corrugated pipes usually adopts two methods: straight pipe inner mold rolling and straight pipe inner cavity pressurization. The corrugated pipes made by inner film rolling have shallow corrugations, but the corrugated pipes made by dense waveforms have strong bending performance. The corrugated pipes made by inner cavity pressurization have deeper corrugations and more dispersed corrugations, but the bending rigidity of the corrugated pipes is strong.

[0007] In the prior art, a corrugated pipe processing device disclosed in the publication number "CN112883513A" includes a support frame, a leveling device is fixedly installed on the right end of the top surface of the support frame, a coiling device is fixedly installed on the left end of the top surface of the support frame, and the coiling device is located on the left side of the leveling device. A connecting frame is fixedly installed on the rear side of the support frame, a rack is movably connected to the middle of the connecting frame, and a connecting plate is fixedly installed on the top of the front side of the rack. The present invention meshes the gear with the rack, and when cutting is required, the motor drives the gear to rotate, thereby driving the rack to move upward, so that the rack drives the top of the flame cutting gun to rise to the bottom of the corrugated pipe through the connecting plate, and the flame cutting gun works to generate flames, so that the corrugated pipe can be cut without the operator holding a cutting machine for cutting. The operation is simple and the labor intensity of the operator is reduced.

[0008] However, the existing technology still has major deficiencies, such as: In the above-mentioned device and the prior art, the inner cavity of the corrugated tube made by pressurizing the inner cavity of the straight tube is injected with pressure and pressurized at both ends of the straight tube and converged toward the middle pressurized area, so that the pressurized area bulges outward, but the expansion pressurization generated by injecting air pressure into the inside of the straight tube will cause instability of the pressurized area. At the same time, the expansion rigidity generated by the pressurized area inside the straight tube is relatively small, making it difficult to keep the corrugated manufacturing area of ​​the inner cavity of the straight tube smooth, affecting the corrugation manufacturing effect of the inner membrane of the corrugated tube. Summary of the invention

[0009] The object of the present invention is to provide a corrugated pipe processing device to solve the problems raised in the above background technology.

[0010] To achieve the above-mentioned object, the present invention provides the following technical solutions: a corrugated pipe processing device, comprising a vertical table, a horizontal table is installed on the top of the vertical table, an extension arm is arranged on the top of the vertical table, a round table is installed on the top of the extension arm, a center hole is arranged on the surface of the horizontal table, a bottom ring is arranged at the bottom of the vertical table, a support frame is arranged on the top of the bottom ring, and an arc-shaped arm is arranged on the top of the support frame; A bellows processing center calibration unit, which is arranged in the transverse platform area and is used to keep the straight pipe vertically lowered when corrugating the straight pipe and ensure the center calibration of the straight pipe; A straight tube surface corrugation processing positioning unit is arranged in the inner area of ​​the arc-shaped arm, and is used to perform inner cavity expansion corrugation processing on the surface of the straight tube when the straight tube is vertically descended and transported.

[0011] Preferably, the calibration unit of the bellows machining center includes a vertical seat, the surface of the horizontal table is provided with a mounting groove, the vertical seat is installed inside the mounting groove, oblique arms are symmetrically installed at both ends of the vertical seat surface, vertical conveying wheels are installed between adjacent oblique arms, and adjacent vertical conveying wheels are symmetrically arranged.

[0012] Preferably, the straight tube surface corrugation processing positioning unit includes a first cylinder, a groove is provided on the top of the support frame, the first cylinder is installed inside the groove, an arc-shaped clamping plate is installed on the movable end of the first cylinder, a corrugated clamping shell is installed on the arc-shaped clamping plate, and adjacent corrugated clamping shells are symmetrically arranged.

[0013] Preferably, a straight tube vertical guiding unit is provided between the support frame and the horizontal platform.

[0014] Preferably, the straight tube vertical guide unit includes a vertical frame, which is installed on the top of the support frame, a second cylinder is installed on the top of the vertical frame, a first pressurizing cartridge is installed on the movable end of the second cylinder, an arc-shaped cotton block is installed in the inner cavity of the first pressurizing cartridge, an extension sleeve is installed on the top of the first pressurizing cartridge, and a second pressurizing cartridge is installed on the top of the extension sleeve.

[0015] Preferably, a bellows-molded lubrication unit is installed on one side of the horizontal platform, and the bellows-molded lubrication unit includes a liquid supply tank, a liquid supply conduit is connected to the liquid supply tank, a liquid spray head is installed at the bottom end of the liquid supply conduit, and the bottom of the liquid spray head faces the first pressurizing cartridge.

[0016] Preferably, a hydraulic telescopic rod is installed at the bottom of the truncated table, and a spherical block is installed on the movable end of the hydraulic telescopic rod.

[0017] Preferably, a high-pressure airbag is installed on the outer surface of the spherical block, and a spherical extruded rubber block is installed on the outer surface of the high-pressure airbag.

[0018] Preferably, a dustproof shell is installed on the outer surface of the vertical platform.

[0019] Preferably, an upper cover plate is provided between the dustproof shell and the transverse platform, a through groove is provided on the surface of the upper cover plate, and one end of the liquid supply conduit passes through the through groove.

[0020] Compared with the prior art, the present invention has the following beneficial effects: 1. When in use, the operator first cuts the raw straight tube of the corrugated tube so that the raw straight tube is placed according to the preset specifications. After the raw straight tube is cut, the straight tube is inserted into the center hole. The straight tube inserted into the center hole maintains a vertical position, and then the vertical conveying wheel on the top of the horizontal table is driven. The adjacent vertical conveying wheels rotate to drive the straight tube located inside the center hole to drop vertically. The vertically dropped straight tube will be smoothly inserted between the adjacent first pressurizing card shell and the adjacent second pressurizing card shell, thereby ensuring that the straight tube remains vertical when the corrugated processing is performed under pressure inside the straight tube, thereby ensuring the processing efficiency of the corrugated tube; 2. When in use, after the adjacent vertical conveying wheel drives the straight tube to descend vertically to the position, the adjacent first cylinder movable end is then driven to extend outward. When the first cylinder movable end extends outward, the arc-shaped card plate installed on the first cylinder movable end drives the corrugated card shell to support the bottom end of the straight tube. At this time, the hydraulic telescopic rod is driven to drive the spherical block to insert into the inner cavity of the straight tube. The spherical block is inserted into the area of ​​the straight tube close to the corrugated card shell along the inner cavity of the straight tube. The upper end of the straight tube is positioned by the vertical conveying wheel, and then continuously inflated by the high-pressure airbag. After the high-pressure airbag is inflated and expanded rapidly, the high-pressure airbag will push the spherical extrusion rubber block to the inner cavity of the straight tube and push the inner cavity of the straight tube outward, thereby performing internal mold corrugation processing on the inside of the corrugated tube; 3. When in use, when the inner mold corrugation processing is performed on the inside of the bellows, in order to ensure the stability of the upper section of the bellows between the pressurized area and the horizontal platform, the second cylinder movable end at the top of the vertical frame is driven to extend outward. When the second cylinder movable end extends outward, the first pressurizing card shell installed on the second cylinder movable end will move outward. After the first pressurizing card shell extends outward, it will slowly fit on the outer surface of the straight tube. The arc-shaped cotton block in the inner cavity of the first pressurizing card shell will gradually cover and press on the outer surface of the straight tube, thereby improving the pressurized locking effect of the adjacent first pressurizing card shell on the outer surface of the straight tube, thereby improving the inner mold corrugation processing effect of the inside of the bellows; 4. During use, when the arc-shaped cotton block in the inner cavity of the first pressurizing cartridge is wrapped and attached to the outer surface of the straight tube, the lubricating medium injected into the arc-shaped cotton block in advance will slowly flow outward when in contact with the outer surface of the straight tube, and the slowly flowing lubricating medium will flow downward along the upper section of the straight tube, and the lubricating medium will slowly flow into the buckling area of ​​the corrugated cartridge. When the inner mold corrugation is performed on the inside of the corrugated tube, the first pressurizing cartridge can be controlled to buckle on the outer surface of the spherical extruded rubber block to cooperate with the spherical extruded rubber block to perform corrugation on the surface of the straight tube from the inside to the outside. At the same time, during the processing, the lubricating medium can reduce the wear of the first pressurizing cartridge on the surface of the straight tube, and the lubricating medium flowing into the corrugated cartridge can also reduce the buckling and locking wear of the corrugated cartridge on the corrugated area of ​​the corrugated tube surface, thereby improving the corrugation processing effect of the corrugated tube surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall schematic diagram of the device of the present invention; Figure 2 It is a schematic diagram of the upper cover plate part in the present invention; Figure 3 It is a schematic diagram of the support frame part of the present invention; Figure 4 It is a partial schematic diagram of the first pressurizing card shell and the second pressurizing card shell in the present invention; Figure 5 It is a schematic diagram of the extension arm part in the present invention; Figure 6 It is a partial schematic diagram of the spherical extruded rubber block in the present invention; Figure 7 It is a partial schematic diagram of the liquid supply conduit in the present invention; Figure 8 It is a schematic diagram of the horizontal platform part in the present invention.

[0022] In the figure: 1. vertical table; 2. bottom ring; 3. extension arm; 31. round table; 32. hydraulic telescopic rod; 33. spherical block; 34. high-pressure airbag; 35. spherical extrusion rubber block; 4. support frame; 41. arc arm; 42. groove; 43. first cylinder; 431. arc clamping plate; 44. wave-shaped card shell; 5. horizontal table; 51. installation groove; 52. vertical seat; 53. oblique arm; 54. vertical conveying wheel; 55. center hole; 56. upper cover plate; 57. through groove; 6. liquid supply conduit; 61. liquid supply bin; 62. liquid spray head; 7. vertical frame; 71. second cylinder; 72. first pressurization card shell; 73. extension sleeve shell; 74. second pressurization card shell; 75. arc cotton block; 8. dustproof shell. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-8 , the present invention provides a technical solution: Embodiment 1: A bellows processing device: comprising a vertical table 1, a horizontal table 5 is installed on the top of the vertical table 1, an extension arm 3 is arranged on the top of the vertical table 1, a round table 31 is installed on the top of the extension arm 3, a center hole 55 is arranged on the surface of the horizontal table 5, a bottom ring 2 is arranged at the bottom of the vertical table 1, a support frame 4 is arranged on the top of the bottom ring 2, and an arc arm 41 is arranged on the top of the support frame 4; A hydraulic telescopic rod 32 is installed at the bottom of the truncated table 31 , and a spherical block 33 is installed on the movable end of the hydraulic telescopic rod 32 .

[0025] A high-pressure air bag 34 is installed on the outer surface of the spherical block 33 , and a spherical extruded rubber block 35 is installed on the outer surface of the high-pressure air bag 34 .

[0026] A dustproof cover 8 is installed on the outer surface of the vertical platform 1 .

[0027] The bellows processing center calibration unit is arranged in the horizontal platform 5 area, and is used to keep the straight pipe vertically descending when the straight pipe is corrugated, and ensure the center calibration of the straight pipe; The calibration unit of the bellows machining center includes a vertical seat 52. A mounting groove 51 is provided on the surface of the horizontal table 5. The vertical seat 52 is installed inside the mounting groove 51. Oblique arms 53 are symmetrically installed at both ends of the surface of the vertical seat 52. Vertical conveying wheels 54 are installed between adjacent oblique arms 53. Adjacent vertical conveying wheels 54 are symmetrically arranged.

[0028] An upper cover plate 56 is arranged between the dustproof shell 8 and the horizontal platform 5 . A through groove 57 is arranged on the surface of the upper cover plate 56 , and one end of the liquid supply conduit 6 passes through the through groove 57 .

[0029] In this embodiment, the operator first cuts the raw straight tube of the corrugated tube so that the raw straight tube is placed according to preset specifications. After the raw straight tube is cut, the straight tube is inserted into the center hole 55. The straight tube inserted into the center hole 55 maintains a vertical position, and then the vertical conveying wheel 54 on the top of the horizontal table 5 is driven. The rotation of the adjacent vertical conveying wheel 54 drives the straight tube located inside the center hole 55 to vertically drop. The vertically dropped straight tube will be smoothly inserted between the adjacent first pressurizing card shell 72 and the adjacent second pressurizing card shell 74, thereby ensuring that the straight tube remains vertical when the straight tube is pressurized for corrugation processing, thereby ensuring the processing efficiency of the corrugated tube.

[0030] A straight tube surface corrugation processing positioning unit, which is arranged in the inner area of ​​the arc-shaped arm 41 and is used to perform inner cavity expansion corrugation processing on the surface of the straight tube when the straight tube is vertically descended and transported; The straight tube surface corrugation processing positioning unit includes a first cylinder 43, a groove 42 is set on the top of the support frame 4, the first cylinder 43 is installed inside the groove 42, an arc clamping plate 431 is installed on the movable end of the first cylinder 43, a corrugated card shell 44 is installed on the arc clamping plate 431, and adjacent corrugated card shells 44 are symmetrically arranged.

[0031] In this embodiment, after the adjacent vertical conveying wheel 54 drives the straight tube to descend vertically into place, it then drives the movable end of the adjacent first cylinder 43 to extend outward. When the movable end of the first cylinder 43 extends outward, the arc-shaped clamping plate 431 installed on the movable end of the first cylinder 43 drives the corrugated card shell 44 to support the bottom end of the straight tube. At this time, the hydraulic telescopic rod 32 is driven to drive the spherical block 33 to insert into the inner cavity of the straight tube. The spherical block 33 is inserted into the area of ​​the straight tube close to the corrugated card shell 44 along the inner cavity of the straight tube. The upper end of the straight tube is positioned by the vertical conveying wheel 54, and then continuously inflated by the high-pressure airbag 34. After the high-pressure airbag 34 is inflated and expanded rapidly, the high-pressure airbag 34 will push the spherical extrusion rubber block 35 to press against the inner cavity of the straight tube and push the inner cavity of the straight tube outward, thereby performing internal mold corrugation processing on the inside of the corrugated tube.

[0032] A straight tube vertical guiding unit is arranged between the supporting frame 4 and the horizontal platform 5.

[0033] The straight tube vertical guide unit includes a vertical frame 7, which is installed on the top of the support frame 4. A second cylinder 71 is installed on the top of the vertical frame 7. A first pressurizing card shell 72 is installed on the movable end of the second cylinder 71. An arc-shaped cotton block 75 is installed in the inner cavity of the first pressurizing card shell 72. An extension sleeve 73 is installed on the top of the first pressurizing card shell 72, and a second pressurizing card shell 74 is installed on the top of the extension sleeve shell 73.

[0034] In this embodiment, the second pressurizing card shell 74 is installed on the upper part of the first pressurizing card shell 72 through the extension sleeve 73. When the first pressurizing card shell 72 is buckled onto the outer surface of the straight tube, the second pressurizing card shell 74 and the extension sleeve 73 will also be buckled onto the outer surface of the straight tube, thereby extending the pressurized locking area of ​​the outer surface of the straight tube, further enhancing the pressurized locking effect of the outer surface of the straight tube, and further improving the inner mold corrugation processing effect inside the corrugated tube. Example

[0035] Based on the first embodiment, the second embodiment takes into account that if the straight pipe end and the corrugated end are pressurized and locked by the second pressurizing card shell 74, the first pressurizing card shell 72 and the corrugated card shell 44, it is easy to cause contact wear on the surface of the bellows, resulting in surface loss of the bellows. Therefore, the second embodiment is provided with a bellows forming lubrication unit, which can avoid the above-mentioned problem. A bellows-shaped lubrication unit is installed on one side of the horizontal platform 5. The bellows-shaped lubrication unit includes a liquid supply tank 61, which is connected to a liquid supply conduit 6. A liquid spray head 62 is installed at the bottom of the liquid supply conduit 6, and the bottom of the liquid spray head 62 faces the first pressurizing cartridge 72.

[0036] In this embodiment, when a set of corrugation processing is completed, the first cylinder 43 and the second cylinder 71 are driven to reset and recover. At this time, the lubricating medium in the arc-shaped cotton block 75 in the inner cavity of the first pressurizing cartridge 72 is missing. After the first pressurizing cartridge 72 is reset, the lubricating medium is injected into the liquid supply conduit 6 through the liquid supply tank 61. The liquid supply conduit 6 sprays the lubricating medium to the arc-shaped cotton block 75 area through the liquid spray head 62, thereby completing the replenishment of the lubricating medium in the arc-shaped cotton block 75 area, thereby continuously reducing the contact wear on the surface of the corrugated tube.

[0037] Working principle: During the use of the device, the operator first cuts the raw straight tube of the corrugated tube so that the raw straight tube is placed according to the preset specifications. After the raw straight tube is cut, the straight tube is inserted into the center hole 55. The straight tube inserted into the center hole 55 is kept in a vertical position. Then, the vertical conveying wheel 54 on the top of the horizontal table 5 is driven. The adjacent vertical conveying wheel 54 rotates to drive the straight tube located inside the center hole 55 to drop vertically. The vertically dropped straight tube will be smoothly inserted between the adjacent first pressurizing card shell 72 and the adjacent second pressurizing card shell 74, thereby ensuring that the straight tube remains vertical when the straight tube is pressurized for corrugation processing. After the adjacent vertical conveying wheel 54 drives the straight tube to descend vertically to its position, the adjacent first cylinder 43 is then driven to extend its movable end outward. When the movable end of the first cylinder 43 extends outward, the arc-shaped card plate 431 installed on the movable end of the first cylinder 43 drives the corrugated card shell 44 to support the bottom end of the straight tube. At this time, the hydraulic telescopic rod 32 is driven to drive the spherical block 33 to insert into the inner cavity of the straight tube. The spherical block 33 is inserted into the area of ​​the straight tube close to the corrugated card shell 44 along the inner cavity of the straight tube. The upper end of the straight tube is positioned by the vertical conveying wheel 54, and then continuously inflated by the high-pressure airbag 34. After the high-pressure airbag 34 is inflated and expanded rapidly, the high-pressure airbag 34 will push the spherical extrusion rubber block 35 to press against the inner cavity of the straight tube and push the inner cavity of the straight tube outward. When the inner mold corrugation is processed inside the corrugated tube, in order to ensure the stability of the upper section of the corrugated tube between the pressurized area and the horizontal platform 5, the movable end of the second cylinder 71 on the top of the vertical frame 7 is driven to extend outward. When the movable end of the second cylinder 71 extends outward, the first pressurizing card shell 72 installed on the movable end of the second cylinder 71 will move outward. After the first pressurizing card shell 72 extends outward, it will slowly fit on the outer surface of the straight tube, and the arc-shaped cotton block 75 in the inner cavity of the first pressurizing card shell 72 will gradually cover and press on the outer surface of the straight tube. The second pressurizing card shell 74 is installed on the upper part of the first pressurizing card shell 72 through the extension shell 73. When the first pressurizing card shell 72 is buckled onto the outer surface of the straight tube, the second pressurizing card shell 74 and the extension shell 73 are also buckled onto the outer surface of the straight tube, thereby extending the compression locking area of ​​the outer surface of the straight tube; When the arc-shaped cotton block 75 in the inner cavity of the first pressurizing card shell 72 is covered and attached to the outer surface of the straight tube, the lubricating medium injected into the arc-shaped cotton block 75 in advance will slowly flow outward when it contacts the outer surface of the straight tube, and the slowly flowing lubricating medium will flow downward along the upper section of the straight tube, and the lubricating medium will slowly flow into the buckling area of ​​the corrugated card shell 44. When the inner mold corrugation is performed on the inside of the corrugated tube, the first pressurizing card shell 72 can be controlled to buckle on the outer surface of the spherical extruded rubber block 35 to cooperate with the spherical extruded rubber block 35 to perform corrugation on the surface of the straight tube from the inside to the outside. At the same time, during the processing, the lubricating medium can reduce the wear of the first pressurizing card shell 72 on the surface of the straight tube, and the lubricating medium flowing into the corrugated card shell 44 can also reduce the buckling and locking wear of the corrugated area of ​​the corrugated tube surface by the corrugated card shell 44; When a set of corrugation processing is completed, the first cylinder 43 and the second cylinder 71 are driven to reset and recover. At this time, the lubricating medium in the arc-shaped cotton block 75 in the inner cavity of the first pressurizing cartridge 72 is missing. After the first pressurizing cartridge 72 is reset, the lubricating medium is injected into the liquid supply conduit 6 through the liquid supply tank 61. The liquid supply conduit 6 sprays the lubricating medium to the arc-shaped cotton block 75 area through the liquid spray head 62, thereby completing the replenishment of the lubricating medium in the arc-shaped cotton block 75 area.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bellows processing device, characterized in that: The vertical platform (1) comprises a horizontal platform (5) mounted on the top of the vertical platform (1), an extension arm (3) is arranged on the top of the vertical platform (1), a round platform (31) is mounted on the top of the extension arm (3), a center hole (55) is arranged on the surface of the horizontal platform (5), a bottom ring (2) is arranged on the bottom of the vertical platform (1), a support frame (4) is arranged on the top of the bottom ring (2), and an arc-shaped arm (41) is arranged on the top of the support frame (4); A bellows processing center calibration unit, the bellows processing center calibration unit is arranged in the transverse platform (5) area, and is used to maintain the vertical descent of the straight pipe when corrugating the straight pipe, while ensuring the center calibration of the straight pipe; A straight tube surface corrugation processing positioning unit is arranged in the inner area of ​​the arc-shaped arm (41) and is used to perform inner cavity expansion corrugation processing on the surface of the straight tube when the straight tube is vertically descended and transported.

2. A corrugated pipe processing device according to claim 1, characterized in that: The bellows processing center calibration unit comprises a vertical seat (52), a mounting groove (51) is provided on the surface of the horizontal table (5), the vertical seat (52) is installed inside the mounting groove (51), oblique arms (53) are symmetrically installed at both ends of the surface of the vertical seat (52), vertical conveying wheels (54) are installed between adjacent oblique arms (53), and adjacent vertical conveying wheels (54) are symmetrically arranged.

3. A corrugated pipe processing device according to claim 2, characterized in that: The straight tube surface corrugation processing positioning unit comprises a first cylinder (43), a groove (42) is arranged on the top of the support frame (4), the first cylinder (43) is installed inside the groove (42), an arc-shaped clamping plate (431) is installed on the movable end of the first cylinder (43), a corrugated clamping shell (44) is installed on the arc-shaped clamping plate (431), and adjacent corrugated clamping shells (44) are symmetrically arranged.

4. The bellows processing device according to claim 1, characterized in that: A straight pipe vertical guiding unit is provided between the support frame (4) and the horizontal platform (5).

5. A corrugated pipe processing device according to claim 4, characterized in that: The straight tube vertical guide unit comprises a vertical frame (7), the vertical frame (7) being mounted on the top of the support frame (4), a second cylinder (71) being mounted on the top of the vertical frame (7), a first pressurizing cartridge (72) being mounted on the movable end of the second cylinder (71), an arc-shaped cotton block (75) being mounted in the inner cavity of the first pressurizing cartridge (72), an extension sleeve (73) being mounted on the top of the first pressurizing cartridge (72), and a second pressurizing cartridge (74) being mounted on the top of the extension sleeve (73).

6. A corrugated pipe processing device according to claim 5, characterized in that: A bellows-shaped lubrication unit is installed on one side of the horizontal platform (5), and the bellows-shaped lubrication unit comprises a liquid supply bin (61), the liquid supply bin (61) is connected to a liquid supply conduit (6), a liquid spray head (62) is installed at the bottom end of the liquid supply conduit (6), and the bottom of the liquid spray head (62) faces the first pressurizing cartridge (72).

7. The corrugated pipe processing device according to claim 1, characterized in that: A hydraulic telescopic rod (32) is installed at the bottom of the truncated table (31), and a spherical block (33) is installed on the movable end of the hydraulic telescopic rod (32).

8. A corrugated pipe processing device according to claim 7, characterized in that: A high-pressure air bag (34) is installed on the outer surface of the spherical block (33), and a spherical extruded rubber block (35) is installed on the outer surface of the high-pressure air bag (34).

9. The bellows processing device according to claim 6, characterized in that: A dustproof shell (8) is installed on the outer surface of the vertical platform (1).

10. The corrugated pipe processing device according to claim 9, characterized in that: An upper cover plate (56) is arranged between the dustproof shell (8) and the horizontal platform (5), a through groove (57) is arranged on the surface of the upper cover plate (56), and one end of the liquid supply conduit (6) passes through the through groove (57).

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