A corrosion-resistant pipe high-pressure forming system

Abstract

The application discloses a kind of corrosion-resistant pipe high-pressure forming system, including bottom plate, control box, overhead track, moving track, iron core filling mechanism, cover plate grabbing mechanism, mould clamping mechanism, mould air extraction mechanism, high-pressure forming mechanism and multiple pipe moulds.The corrosion-resistant pipe high-pressure forming system utilizes mould clamping mechanism to position outer mould, iron core filling mechanism fills into the mould iron core into outer mould, fills the pipe powder of configuration into the inner wall of outer mould and between mould iron core, cover plate grabbing mechanism grabs mould cover plate, overhead track moves and makes cover plate grabbing mechanism move each pipe mould to high-pressure forming mechanism, is pressurized by high-pressure forming mechanism, makes the pipe powder in each pipe mould cold-pressing forming, to realize the simultaneous pressing forming of multiple corrosion-resistant pipes simultaneously, can effectively improve the production efficiency of corrosion-resistant pipe, without manual handling pipe mould, greatly reduce the working strength of staff.

Description

TECHNICAL FIELD

[0001] The application relates to a high-pressure forming system, in particular to a high-pressure forming system for corrosion-resistant pipe fittings. BACKGROUND

[0002] In the existing industrial production field, corrosion-resistant pipe fittings are widely used, such as steel, petroleum, chemical industry, papermaking, environmental protection, non-ferrous metal and acid washing plus acid conveying strong corrosive fluid occasions; the existing corrosion-resistant materials generally use PTFE materials; PTFE is also called polytetrafluoroethylene, which has the advantages of low friction coefficient, high temperature resistance (long-term operating temperature can reach 200 DEG C), strong weather resistance, chemical corrosion resistance and good flame resistance. PTFE is usually cold-pressed by grinding tool and then sintered; the existing pressing forming device for PTFE has low forming efficiency, and it is usually difficult to press form multiple pipe fittings, and the production efficiency is low. SUMMARY

[0003] The application aims to provide a high-pressure forming system for corrosion-resistant pipe fittings, which can simultaneously press form multiple pipe fittings and has high production efficiency.

[0004] Technical scheme: the high-pressure forming system for corrosion-resistant pipe fittings comprises a bottom plate, a control box, a sky rail car, a moving rail, an iron core filling mechanism, a cover plate grabbing mechanism, a mold clamping mechanism, a mold air extraction mechanism, a high-pressure forming mechanism and a plurality of pipe fitting molds; the pipe fitting mold comprises an outer mold, a mold iron core and a mold cover plate.

[0005] The mold clamping mechanism is installed on the bottom plate and used for clamping and positioning each outer mold; the moving rail is transversely installed on the bottom plate through a support; the sky rail car moves transversely on the moving rail; the iron core filling mechanism and the cover plate grabbing mechanism are installed on the sky rail car, the iron core filling mechanism is used for filling each mold iron core into the outer mold on the mold clamping mechanism, and the cover plate grabbing mechanism is used for clamping or releasing the mold cover plate; the mold air extraction mechanism is used for extracting air from the outer mold, so that the outer mold can be filled with pipe fitting powder; the high-pressure forming mechanism is installed on the bottom plate in a penetrating mode and used for simultaneously accommodating a plurality of pipe fitting molds and simultaneously high-pressure forming pipe fitting powder in the pipe fitting molds; the cover plate grabbing mechanism cooperates with the sky rail car to move the pipe fitting mold into the high-pressure forming mechanism by grabbing the mold cover plate; a controller is arranged in the control box; the sky rail car, the iron core filling mechanism, the cover plate grabbing mechanism, the mold clamping mechanism, the mold air extraction mechanism and the high-pressure forming mechanism are all driven and controlled by the controller; a display screen and a key panel electrically connected with the controller are installed on the control box.

[0006] Further, the outer mold comprises a forming tube and a positioning base; a plurality of air flow grooves are vertically arranged on the inner wall of the forming tube; a plurality of annular pipes are integrally arranged on the forming tube in a spaced manner and are connected with the air flow grooves through air flow holes; a butt joint is mounted on each annular pipe; an extrusion air bag is wrapped on the inner wall of the forming tube; a mold cover plate and the positioning base are respectively mounted on the upper and lower ends of the forming tube; and the mold core is coaxially inserted into the forming tube.

[0007] Further, the overhead crane comprises an overhead crane pipe body, a mounting seat, a horizontal moving unit, a lifting unit and a longitudinal moving unit; the overhead crane pipe body is horizontally and slidingly mounted on a moving track; the horizontal moving unit is used to drive the overhead crane pipe body to move horizontally; the lifting unit is mounted on the overhead crane pipe body; the longitudinal moving unit is mounted on the lifting unit and is driven by the lifting unit to move longitudinally; the mounting seat is mounted on the longitudinal moving unit and is driven by the longitudinal moving unit to move longitudinally; the core filling mechanism and the cover plate grabbing mechanism are mounted on the mounting seat; and the horizontal moving unit, the lifting unit and the longitudinal moving unit are driven and controlled by a controller.

[0008] Further, the core filling mechanism comprises a pushing driving motor, a rotating pipe, a rotating push rod and a downward pushing spring; the rotating pipe is rotatably mounted on the overhead crane; the pushing driving motor drives the rotating pipe to rotate through a pushing gear transmission pair and is electrically connected with the controller through a pushing driving circuit; the rotating push rod is coaxially and slidingly inserted into the rotating pipe and rotates synchronously with the rotating pipe; a lifting screw is coaxially fixed on the lower end of the rotating push rod; a lifting threaded hole is arranged on the upper end of the mold core for the lifting screw to screw into; a downward pressing seat is coaxially arranged on the upper end of the rotating push rod; an L-shaped support is mounted on the overhead crane; and the downward pushing spring is elastically supported between the horizontal support plate of the L-shaped support and the downward pressing seat.

[0009] Further, the cover plate grabbing mechanism comprises a first locking driving motor, an insertion seat, a locking inner threaded pipe and a locking outer threaded pipe; the insertion seat is mounted on the overhead crane; a lifting lug is arranged on the mold cover plate for being inserted into the insertion seat; the locking inner threaded pipe is fixedly connected with the insertion seat in communication; the locking outer threaded pipe is screwingly mounted in the locking inner threaded pipe; a locking rotating shaft for driving the locking outer threaded pipe to rotate is rotatably mounted in the locking inner threaded pipe; the first locking driving motor is used to drive the locking rotating shaft to rotate and is electrically connected with the controller through a first locking driving circuit; and a locking insertion pipe is mounted on the locking outer threaded pipe and has an end penetrating into the lifting hole of the lifting lug after extending into the insertion seat.

[0010] Further, the mold clamping mechanism comprises a positioning support and a plurality of clamping positioning branches; each clamping positioning branch comprises a clamping positioning unit and a rotating support unit.

[0011] The positioning support is transversely mounted on the bottom plate; each clamping positioning unit of the clamping positioning branch is spacedly mounted on the positioning support and is used for movably clamping the outer mold to keep the outer mold vertical; each rotating supporting unit is mounted on the bottom plate and corresponds to each clamping positioning branch in position, and is used for supporting the outer mold on the corresponding clamping positioning branch and driving the outer mold to rotate; the clamping positioning unit and the rotating supporting unit are driven and controlled by the controller.

[0012] Further, the rotating supporting unit comprises a rotating drive motor and a supporting turntable; the supporting turntable is rotatably mounted on the bottom plate and is used for coaxially supporting the bottom of the outer mold; the rotating drive motor drives the supporting turntable to rotate through a rotating worm and gear transmission pair and is electrically connected with the controller through a rotating drive circuit; a plurality of position sensors electrically connected with the controller are mounted on the positioning support, each position sensor corresponds to each clamping positioning branch, and is used for detecting the rotating position of each outer mold.

[0013] Further, the mold air extraction mechanism comprises a vacuum pump, a butt joint pipe, a plurality of air extraction pipes and a plurality of locking units; each locking unit is spacedly mounted on the positioning support; each air extraction pipe is vertically mounted on each locking unit and is moved transversely by the locking unit; a plurality of branch air pipes are communicated on the air extraction pipe; the branch air pipes of each air extraction pipe are used for butt joint on the outer mold on each clamping positioning branch; the vacuum pump is mounted on the bottom plate and is electrically connected with the controller through a pump drive circuit; the butt joint pipe is butt joint mounted on the air inlet of the vacuum pump; a plurality of check valves are mounted on the butt joint pipe; each check valve is butt jointed with each air extraction pipe through an air extraction hose.

[0014] Further, the high-pressure forming mechanism comprises a high-pressure tank, a pressure cover, a hydraulic cylinder, a lock balance unit and a swinging unit;

[0015] The high-pressure tank is penetratively mounted on the bottom plate and is used for containing each pipe fitting mold vertically placed; the swinging unit is mounted on the bottom plate and is driven and controlled by the controller; the hydraulic cylinder is mounted on the swinging unit and is swung horizontally by the swinging unit; the pressure cover is mounted on the output end of the hydraulic cylinder; the hydraulic cylinder is used for driving the pressure cover to enter and exit the high-pressure tank, and the circumferential side of the pressure cover is sealingly and slidingly matched with the inner wall of the high-pressure tank; the lock balance unit is used for locking the swinging unit; a gas release unit for releasing pressure in the high-pressure tank when the pressure cover moves is mounted on the pressure cover.

[0016] Further, the air release unit comprises an air release rod and a return spring; an air release hole is vertically arranged on the gland; a counterbore is coaxially arranged at the lower end of the air release hole; a top-closed air release pipe is coveringly installed at the upper end of the air release hole; a pressure relief hole is arranged at the lower side of the air release pipe; the air release rod is slidingly inserted into the air release hole, and the upper end of the air release rod extends into the air release pipe; a guide piston slidingly installed in the air release pipe is installed at the extending end of the air release rod; the return spring is used to drive the guide piston to move upward; an air release groove extending to the upper end is vertically arranged on the air release rod; and a sealing plug sealingly inserted into the counterbore is fixed at the lower end of the air release rod.

[0017] Compared with the prior art, the present application has the beneficial effects that: the outer mold is positioned by the mold clamping mechanism, the mold core is filled into the outer mold by the core filling mechanism, the pipe fitting powder arranged is filled between the inner wall of the outer mold and the mold core, the cover plate is buckled on the outer mold by the cover plate grabbing mechanism, the cover plate is fixed on the outer mold by manual operation, the core filling mechanism and the cover plate grabbing mechanism are moved by the overhead track vehicle, the cover plate grabbing mechanism drives the pipe fitting mold as a whole by the mold cover plate to move into the high-pressure forming mechanism, the cover plate grabbing mechanism releases the mold cover plate, and each pipe fitting mold is moved into the high-pressure forming mechanism, water is filled in the high-pressure forming mechanism, and the pipe fitting powder in each pipe fitting mold is cold-pressed and formed by the high-pressure forming mechanism, so that the simultaneous pressing and forming of multiple corrosion-resistant pipe fittings is realized, the production efficiency of the corrosion-resistant pipe fittings is effectively improved, manual operation of the pipe fitting mold is not needed, and the working strength of the workers is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The figure is a structural schematic diagram of the present application;

[0019] Figure 2 The figure is a structural schematic diagram of the clamping positioning branch of the present application;

[0020] Figure 3 The figure is a sectional view of the outer mold of the present application;

[0021] Figure 4 The figure is a structural schematic diagram of the cross-shaped protrusion of the present application;

[0022] Figure 5 The figure is an enlarged view of the overhead track vehicle of the present application;

[0023] Figure 6 The figure is an installation schematic diagram of the cover plate grabbing mechanism of the present application;

[0024] Figure 7 The figure is a sectional view of the cover plate grabbing mechanism of the present application;

[0025] Figure 8 The figure is an assembly drawing of the air release unit of the present application;

[0026] Figure 9 is a top view of the high-pressure tank of the present application;

[0027] Figure 10 is a schematic diagram of the circuit structure of the present application;

[0028] In the figure: 1, base plate; 2, support post; 3, moving track; 4, control box; 5, display screen; 6, key panel; 7, crown block pipe body; 8, sliding groove; 9, sliding roller; 10, transverse moving rack; 11, transverse moving drive motor; 12, transverse moving gear; 13, lifting long hole; 14, lifting drive screw; 15, lifting square tube; 16, lifting drive motor; 17, longitudinal moving square tube; 18, longitudinal moving drive motor; 19, longitudinal moving sleeve; 20, mounting seat; 21, plug-in mounting seat; 22, plug-in mounting groove; 23, locking inner threaded tube; 24, first locking drive motor; 25, locking rotating shaft; 26, locking guide groove; 27, locking outer threaded tube; 28, locking plug-in tube; 29, locking blind hole; 30, L-shaped support; 31, pushing drive motor; 32, downward pushing spring; 33, pushing protruding column; 34, downward pressing seat; 35, rotating push rod; 36, pushing guide groove; 37, pulling screw; 38, rotating tube; 39, positioning sleeve; 40, annular slope; 41, mold iron core; 42, cross-shaped recess; 43, forming tube; 44, mounting flange; 45, sealing ring; 46, extrusion air bag; 47, air passage groove; 48, circular ring tube; 50, cross-shaped protruding block; 51, positioning base; 52, mold cover plate; 53, lifting lug; 54, rotating drive motor; 55, support rotating disc; 56, vacuum pump; 57, butt joint pipe; 58, check valve; 59, air suction hose; 60, air suction port; 61, air suction pipe; 62, branch air pipe; 63, butt joint port; 64, moving cross frame; 65, locking guide groove; 66, second locking drive motor; 67, locking drive screw; 68, locking seat; 69, clamping drive motor; 70, clamping drive screw; 71, clamping drive seat; 72, arc-shaped clamping plate; 73, clamping roller; 74, position sensor; 75, walking plate; 76, high-pressure tank; 77, gland; 78, sealing ring; 79, annular groove; 80, air release pipe; 81, dimpling; 82, air release rod; 83, sealing plug; 84, sealing gasket layer; 85, air release groove; 86, guide piston; 87, return spring; 88, pressure relief hole; 89, swinging stand; 90, swinging sleeve; 91, swinging drive motor; 92, hydraulic cylinder; 93, swinging seat; 94, locking rod; 95, buckle locking block; 96, lock catch seat; 97, buckle slot; 98, mold positioning groove. DETAILED DESCRIPTION

[0029] The technical solutions of the present application will be described in detail below in conjunction with the accompanying drawings, but the protection scope of the present application is not limited to the described embodiments.

[0030] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, can also be detachably connected, or integrated; can be directly connected, or indirectly connected through an intermediate medium; can be internal communication of two elements or interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] In the description of the present application, it should be understood that the terms "left", "right", "front", "back", "up", "down", "top", "bottom" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of the simplified description of the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation of the present application.

[0032] Embodiment 1:

[0033] As shown in Figures 1-10 The present application provides a kind of corrosion-resistant pipe high-pressure forming system, including base plate 1, control box 4, overhead track car, moving track 3, iron core filling mechanism, cover plate grabbing mechanism, mould clamping mechanism, mould air extraction mechanism, high-pressure forming mechanism and multiple pipe mould;Pipe mould includes outer mould, mould iron core 41 and mould cover plate 52;

[0034] Mould clamping mechanism is installed on base plate 1, for clamping and positioning each outer mould;

[0035] The support posts 2 are vertically fixed on the left and right side edges of the base plate 1; the two ends of the moving track 3 are fixed on the two support posts 2 respectively; the overhead track vehicle moves laterally on the moving track 3; the iron core filling mechanism and the cover plate grabbing mechanism are installed on the overhead track vehicle; the iron core filling mechanism is used for filling the mold iron core 41 into the outer mold on the mold clamping mechanism; the cover plate grabbing mechanism is used for clamping or releasing the mold cover plate 52; the mold air extraction mechanism is used for extracting air from the outer mold, facilitating the filling of pipe powder in the outer mold; the high-pressure forming mechanism is installed on the base plate 1 in a penetrating manner, used for simultaneously accommodating multiple pipe mold and simultaneously high-pressure forming the pipe powder in the pipe mold; the cover plate grabbing mechanism cooperates with the overhead track vehicle to move the pipe mold into the high-pressure forming mechanism by grabbing the mold cover plate 52; the control box 4 is installed on one of the support posts 2, and the controller is arranged in the control box 4; the overhead track vehicle, the iron core filling mechanism, the cover plate grabbing mechanism, the mold clamping mechanism, the mold air extraction mechanism and the high-pressure forming mechanism are all driven and controlled by the controller; the display screen 5 and the key panel 6 electrically connected with the controller are installed on the control box 4; the position selection key, the cover lifting key, the cover releasing key, the rod pulling key, the rod releasing key, the air extraction key, the air releasing key, the placing key, the pressing key and the lifting back key are arranged on the key panel 6.

[0036] The outer mold is positioned by the mold clamping mechanism, the mold iron core 41 is filled into the outer mold by the iron core filling mechanism, the configured pipe powder is filled between the inner wall of the outer mold and the mold iron core 41, the cover plate grabbing mechanism grabs the mold cover plate 52 to cover the outer mold, the mold cover plate 52 is fixed on the outer mold by manual operation, the overhead track vehicle drives the iron core filling mechanism and the cover plate grabbing mechanism to move, so that the cover plate grabbing mechanism moves the pipe mold as a whole to the high-pressure forming mechanism by the mold cover plate 52, the cover plate grabbing mechanism releases the mold cover plate 52, and each pipe mold is moved to the high-pressure forming mechanism, water is filled in the high-pressure forming mechanism, the high-pressure forming mechanism is pressurized, and the pipe powder in each pipe mold is cold-pressed and formed, so as to realize the simultaneous pressing and forming of multiple corrosion-resistant pipes, effectively improve the production efficiency of the corrosion-resistant pipes, and greatly reduce the working strength of the workers without manual operation of the pipe mold; the keys on the key panel 6 are used to control the operation of the overhead track vehicle, the iron core filling mechanism, the cover plate grabbing mechanism, the mold clamping mechanism, the mold air extraction mechanism and the high-pressure forming mechanism respectively, and facilitate the cooperation with manual operation.

[0037] Further, the outer mold comprises a forming pipe 43 and a positioning base 51; a plurality of annular pipes 48 are integrally arranged on the forming pipe 43 at intervals; a plurality of air flow grooves 47 are vertically arranged on the inner wall of the forming pipe 43 at intervals; an air flow hole communicating with each air flow groove 47 is arranged on each annular pipe 48; a butt joint port 63 is installed on each annular pipe 48; an extrusion air bag 46 is wrapped on the inner wall of the forming pipe 43;

[0038] The mounting flanges 44 are arranged on the upper and lower ends of the forming tube 43; the sealing ring 45 is arranged on the upper mounting flange 44; the mold cover plate 52 and the positioning base 51 are arranged on the upper and lower mounting flanges 44 respectively; the boss extending into the forming tube 43 is integrally arranged on the center of the upper side of the positioning base 51; the cross-shaped lug 50 is arranged on the center of the upper side of the boss; the mold core 41 is used for being inserted into the forming tube 43; the cross-shaped groove 42 used for fitting the cross-shaped lug 50 is arranged on the center of the lower end of the mold core 41.

[0039] Through the cooperation between the circular ring tube 48, the gas passage groove 47, the gas passage hole and the extrusion air bag 46, after the pipe fitting mold enters the high-pressure forming mechanism, water enters the extrusion air bag 46 through the butt joint 63, the high-pressure forming mechanism is pressurized to make the extrusion air bag 46 obtain high pressure, and the pipe fitting powder is tightly pressed on the mold core 41, so that the pressing forming is realized. At the same time, the mold air extraction mechanism extracts the gas between the extrusion air bag 46 and the forming tube 43 when filling the pipe fitting powder, so that the extrusion air bag 46 is tightly attached to the inner wall of the forming tube 43, which is convenient for filling the pipe fitting powder. The arrangement of the plurality of gas passage grooves 47 and the circular ring tube 48 can make the extrusion air bag 46 adsorbed on the inner wall of the forming tube 43 as smoothly as possible, so as to prevent the influence on the wall thickness of the subsequent pressed corrosion-resistant pipe fitting. The butt joint 63 is convenient for draining after the pipe fitting mold is taken out from the high-pressure forming mechanism.

[0040] Further, the crown block includes a crown block pipe body 7, a mounting seat 20, a horizontal moving unit, a lifting unit and a longitudinal moving unit; the horizontal moving unit includes a horizontal moving gear and rack transmission pair and a horizontal moving drive motor 11; the horizontal moving gear and rack transmission pair includes a horizontal moving gear 12 and a horizontal moving rack 10; the lifting unit includes a lifting square tube 15, a lifting drive screw 14 and a lifting drive motor 16; the longitudinal moving unit includes a longitudinal moving drive motor 18, a longitudinal moving sleeve pipe 19 and a longitudinal moving square tube 17.

[0041] The sliding grooves 8 are horizontally arranged on the front and rear sides of the moving track 3; the moving track 3 penetrates through the crown block pipe body 7, and a plurality of sliding rollers 9 are rotatably arranged on the inner walls of the front and rear sides of the crown block pipe body 7 and run in the corresponding sliding grooves 8; the horizontal moving rack 10 is horizontally arranged on the upper side of the moving track 3; the horizontal moving gear 12 is rotatably arranged on the crown block pipe body 7 and engaged with the horizontal moving rack 10; the horizontal moving drive motor 11 is used for driving the horizontal moving gear 12 to rotate and is electrically connected with the controller through a horizontal moving drive circuit.

[0042] The upper end of the lifting square tube 15 is fixed on the lower side of the crown block pipe body 7; a lifting block is vertically slidably arranged in the lifting square tube 15; a lifting drive screw 14 is vertically rotatably installed in the lifting square tube 15 and threadedly penetrates the lifting block; a lifting drive motor 16 drives the lifting drive screw 14 to rotate through a lifting chain transmission pair and is electrically connected with the controller through a lifting drive circuit; a lifting long slot 13 is vertically arranged on the front side of the lifting square tube 15;

[0043] The rear end of the longitudinal moving square tube 17 penetrates the lifting long slot and is fixed on the lifting block; a longitudinal moving block is longitudinally slidably arranged in the longitudinal moving square tube 17; a longitudinal moving long slot is longitudinally arranged on the longitudinal moving square tube 17; a longitudinal moving sleeve 19 is longitudinally slidably sleeved on the longitudinal moving square tube 17 and is fixed on the longitudinal moving block through a longitudinal moving connecting rod penetrating the longitudinal moving long slot; a longitudinal moving drive screw threadedly penetrating the longitudinal moving block is longitudinally rotatably installed in the longitudinal moving square tube 17; a longitudinal moving drive motor 18 is used to drive the longitudinal moving drive screw to rotate and is electrically connected with the controller through a longitudinal moving drive circuit;

[0044] A mounting seat 20 is fixed on the longitudinal moving sleeve 19; the iron core filling mechanism and the cover plate grabbing mechanism are both mounted on the mounting seat 20.

[0045] The horizontal moving unit, the lifting unit and the longitudinal moving unit are respectively used to adjust the horizontal, vertical and longitudinal positions of the mounting seat 20, so that the iron core filling mechanism can fill the mold iron core 41 on each outer mold of the mold clamping mechanism and the cover plate grabbing mechanism can cover the mold cover plate 52 on each outer mold of the mold clamping mechanism and drive the pipe mold to move into the high-pressure forming mechanism; the cooperation between the sliding groove 8 and the sliding roller 9 reduces the friction between the crown block pipe body 7 and the moving track 3, which can effectively improve the moving stability of the crown block trolley.

[0046] Further, the iron core filling mechanism comprises a pushing driving motor 31, a rotating tube 38, a rotating push rod 35, a positioning sleeve 39 and a pushing spring 32; the rotating tube 38 is vertically and rotatably arranged on the right side of the mounting seat 20; the upper end of the positioning sleeve 39 is fixed on the lower side of the mounting seat 20 and coaxial with the rotating tube 38, and an annular slope 40 for inserting the mold iron core 41 is arranged at the lower inner opening of the positioning sleeve 39; the pushing driving motor 31 drives the rotating tube 38 to rotate through a pushing gear transmission pair, and is electrically connected with the controller through a pushing driving circuit; the rotating push rod 35 is coaxially and slidably arranged through the rotating tube 38; a pushing guide groove 36 is vertically arranged on the rotating push rod 35; a pushing guide block is arranged on the inner wall of the rotating tube 38 and slides along the pushing guide groove 36; a lifting screw 37 is coaxially fixed on the lower end of the rotating push rod 35; a lifting threaded hole is arranged on the upper end of the mold iron core 41 for the screwing of the lifting screw 37; a pushing seat 34 is coaxially arranged on the upper end of the rotating push rod 35; a pushing protruding column 33 is coaxially arranged on the upper side of the pushing seat 34; an L-shaped bracket 30 is arranged on the right side of the mounting seat 20; and the pushing spring 32 is elastically supported between the horizontal bracket plate of the L-shaped bracket 30 and the pushing seat 34 and is sleeved on the pushing protruding column 33.

[0047] The pushing driving motor 31 drives the rotating tube 38 to rotate through a pushing gear transmission pair under the control of the controller, the rotating push rod 35 drives the lifting screw 37 to rotate, when the mold iron core 41 is taken out, the lifting unit is slightly lowered, the annular slope 40 on the positioning sleeve 39 guides the upper end of the mold iron core 41 to be inserted into the positioning sleeve 39, so that the lifting screw 37 can be aligned with the lifting threaded hole, the pushing spring 32 presses the pushing seat 34, so that the lifting screw 37 can be screwed into the lifting threaded hole, then the lifting unit is raised to take out the mold iron core 41, when the mold iron core 41 is filled, the lifting unit is lowered, so that the mold iron core 41 enters the forming tube 43 and the cross-shaped protrusion 50 is embedded in the cross-shaped groove 42, the pushing driving motor 31 is reversed, so that the lifting screw 37 is unscrewed from the lifting threaded hole, the mold iron core 41 is separated from the iron core filling mechanism and remains in the forming tube 43, and the filling is realized.

[0048] Further, the cover plate grabbing mechanism comprises a first locking driving motor 24, a plug-in seat 21, a locking inner threaded tube 23, a locking outer threaded tube 27, and a locking plug tube 28; a lifting lug 53 is arranged on the upper side of the mold cover plate 52; the top of the plug-in seat 21 is fixed on the left side of the lower side of the mounting seat 20; a plug-in groove 22 for plugging in the lifting lug 53 is arranged on the lower side of the plug-in seat 21; one end of the locking inner threaded tube 23 is fixed in communication on the front side of the plug-in seat 21; the locking outer threaded tube 27 is screw-coupledly installed in the locking inner threaded tube 23; the locking rotating shaft 25 is rotatably and longitudinally installed in the locking inner threaded tube 23; the first locking driving motor 24 is used for driving the locking rotating shaft 25 to rotate, and is electrically connected with the controller through a first locking driving circuit;

[0049] The locking rotating shaft 25 longitudinally slides through the locking outer threaded tube 27; a locking guide groove 26 is longitudinally arranged on the locking rotating shaft 25, and a locking guide block that is in sliding cooperation with the locking guide groove 26 is arranged on the inner wall of the locking outer threaded tube 27; a locking blind hole 29 corresponding to the position of the locking inner threaded tube 23 is arranged on the rear side wall of the plug-in groove 22; the locking plug tube 28 is coaxially fixed on the locking outer threaded tube 27, and the end thereof is used for extending into the locking blind hole 29 through the lifting hole of the lifting lug 53, and the locking plug tube 28 can be completely retracted into the locking inner threaded tube 23.

[0050] The first locking driving motor 24 is used for driving the locking rotating shaft 25 to rotate under the control of the controller, the locking outer threaded tube 27 drives the locking plug tube 28 to rotate and longitudinally move, when grabbing, the lifting lug 53 of the mold cover plate 52 extends into the plug-in groove 22, the locking plug tube 28 longitudinally moves to pass through the lifting hole of the lifting lug 53, and the end thereof is inserted into the locking blind hole 29, so that the mold cover plate 52 is grabbed and locked, when releasing, the first locking driving motor 24 is reversed, the locking plug tube 28 longitudinally moves to be separated from the locking blind hole 29 and the lifting hole of the lifting lug 53, and then is retracted into the locking inner threaded tube 23, so that the mold cover plate 52 is released; the locking blind hole 29 can support the locking plug tube 28 to a certain extent, so that the locking plug tube 28 can bear a certain load.

[0051] Further, the mold clamping mechanism comprises a positioning support and a plurality of clamping positioning branches; each clamping positioning branch comprises a clamping positioning unit and a rotary support unit; the clamping positioning branch comprises a clamping drive motor 69, a clamping drive screw 70, two clamping drive seats 71 and two arc-shaped clamping plates 72; the positioning support comprises a moving cross 64 and two support vertical plates; the moving cross 64 is transversely installed on the left side of the bottom plate 1 through the two support vertical plates; a walking plate 75 is fixedly connected to the upper side of the two support vertical plates; a clamping guide groove is transversely arranged on the front side of the moving cross 64; the clamping drive screw 70 of each clamping positioning branch is rotatably installed in the clamping guide groove; the left and right sides of the clamping drive screw 70 have the same thread pitch but opposite rotation directions; the clamping drive motor 69 is used to drive the clamping drive screw 70 to rotate and is electrically connected to the controller through a clamping drive circuit; the two clamping drive seats 71 are transversely slidably installed in the clamping guide groove; the left and right sides of the clamping drive screw 70 are threadedly rotatably penetrated through the two clamping drive seats 71; the two arc-shaped clamping plates 72 are installed on the two clamping drive seats 71 through L-shaped mounting plates and are used to clamp the outer circumferential wall of the outer mold; a plurality of clamping rollers 73 walking on the outer circumferential wall of the outer mold are rotatably installed on the upper and lower side edges of the two arc-shaped clamping plates 72; the clamping positioning unit is installed on the bottom plate 1 and is used to support and rotate the outer mold.

[0052] The clamping drive motor 69 drives the clamping drive screw 70 to rotate, so that the two clamping drive seats 71 drive the two arc-shaped clamping plates 72 to move relatively, so that the two clamping rollers 73 press on the outer circumferential wall of the outer mold, so that the outer mold can rotate under the drive of the rotary support unit while keeping the axis vertical, and the movable clamping is realized.

[0053] Further, the rotary support unit comprises a rotary drive motor 54 and a support turntable 55; the support turntable 55 is rotatably installed on the bottom plate 1 and is used to coaxially support the bottom of the outer mold; the rotary drive motor 54 drives the support turntable 55 to rotate through a rotary worm and gear transmission pair and is electrically connected to the controller through a rotary drive circuit; a position sensor 74 for detecting the position of the docking port 63 of the outer mold on each clamping positioning unit is installed on the edge of the moving cross 64 and is electrically connected to the controller. The rotary drive motor 54 drives the support turntable 55 to rotate through the rotary worm and gear transmission pair under the control of the controller, so that the support turntable 55 drives the outer mold to rotate, and the position of the docking port 63 is detected by the position sensor 74; when the docking port 63 is detected, the support turntable 55 stops rotating, and at this time the mold air extraction mechanism can extract air from the pipe mold.

[0054] Further, the mold air extraction mechanism comprises a vacuum pump 56, a butt joint pipe 57, a plurality of air extraction pipes 61 and a plurality of locking units; each locking unit comprises a second locking drive motor 66, a locking drive lead screw 67 and a locking seat 68;

[0055] A locking guide groove 65 is arranged transversely on the front side of the moving cross frame 64; the locking drive lead screw 67 of each locking unit is installed in the locking guide groove 65 in a spaced rotating manner; the second locking drive motor 66 is used to drive the locking drive lead screw 67 to rotate, and is electrically connected with the controller through a second locking drive circuit; the locking seat 68 is installed in the locking guide groove 65 in a transversely sliding manner, and the locking drive lead screw 67 is screwed through the locking seat 68; each air extraction pipe 61 is vertically installed on the locking seat 68 of each locking unit; a plurality of branch air pipes 62 are arranged in communication on the air extraction pipe 61, and the branch air pipes 62 of each air extraction pipe 61 are respectively used to butt joint on the outer mold on each clamping positioning branch, and each branch air pipe 62 of the same air extraction pipe 61 is used to butt joint with each butt joint port 63 on one outer mold at the same time; an air extraction port 60 is arranged on the air extraction pipe 61;

[0056] The vacuum pump 56 is installed on the bottom plate 1 and is electrically connected with the controller through a pump machine drive circuit; the butt joint pipe 57 is butt jointed on the air inlet of the vacuum pump 56; a plurality of check valves 58 are installed on the butt joint pipe 57; each check valve 58 is respectively butt jointed with each air extraction port 60 through an air extraction hose 59.

[0057] The second locking drive motor 66 drives the air extraction pipe 61 to move transversely in a small amplitude under the control of the controller, and after the rotation of the rotating support unit is completed, the branch air pipes 62 of the air extraction pipe 61 are respectively butt jointed on each butt joint port 63 of the outer mold; the vacuum pump 56 operates under the control of the controller, and the gas between the squeeze air bag 46 and the forming pipe 43 is sequentially extracted through the butt joint port 63, the branch air pipe 62, the air extraction pipe 61, the air extraction port 60, the air extraction hose 59 and the butt joint pipe 57 by the vacuum pump 56, so as to realize the extraction of the gas in the squeeze air bag 46, and facilitate the filling of the pipe powder; when the outer mold is air extracted, the vacuum pump 56 is started, and the vacuum pump 56 is stopped after the filling of the outer mold is completed; the check valve 58 is used to control whether each air extraction hose 59 is ventilated, so that the number of pipe mold in use can be adjusted adaptively, and when there is no pipe mold on the corresponding clamping positioning branch of the air extraction pipe 61, the corresponding check valve 58 is closed.

[0058] Further, the high-pressure forming mechanism comprises a high-pressure tank 76, a pressure cover 77, a hydraulic cylinder 92, a lock balance unit and a swing unit; the swing unit comprises a swing stand 89, a swing sleeve 90, a swing drive motor 91 and a swing seat 93; the lock balance unit comprises a lock rod 94 and a lock seat 96;

[0059] The high-pressure tank 76 is installed on the right side of the bottom plate 1 in a penetrating mode; a plurality of mold positioning grooves 98 for inserting the pipe fitting mold are arranged at the bottom of the high-pressure tank 76; the lower end of the swing stand 89 is fixed on the bottom plate 1 and located at the left side of the high-pressure tank 76; the swing sleeve 90 is coaxially and rotatably installed on the upper side of the swing stand 89; the swing base 93 is fixed on the swing sleeve 90; the swing drive motor 91 is installed on the swing base 93 and drivingly connected with the upper end of the swing stand 89 through a swing worm gear transmission pair and electrically connected with the controller through a swing drive circuit; the hydraulic cylinder 92 is fixed on the swing base 93 in a penetrating mode and used to drive the pressure cover 77 to enter and exit the high-pressure tank 76, and the circumferential side surface of the pressure cover 77 is in sliding fit with the inner wall of the high-pressure tank 76; the annular groove 79 is arranged at the lower side of the circumferential side surface of the pressure cover 77; the sealing ring 78 for being tightly pressed on the inner wall of the high-pressure tank 76 is installed on the annular groove 79; the pressure relief unit is installed on the pressure cover 77 and used to relieve the pressure in the high-pressure tank 76 when the pressure cover 77 moves upward; the lock catch base 96 is fixed on the bottom plate 1 at the right side of the high-pressure tank 76 and fixedly connected with the high-pressure tank 76; the clamping groove 97 extending to the front side surface is arranged on the upper side of the lock catch base 96 and in a stepped mode with the upper side being narrow and the lower side being wide; the upper end of the lock rod 94 is fixed on the right end of the swing base 93; the lower end of the lock rod 94 is used to swing into the clamping groove 97, and the clamping lock block 95 for being clamped in the clamping groove 97 is fixed on the lower end of the lock rod 94.

[0060] The swing drive motor 91 drives the swing base 93 to swing around the swing stand 89 through the swing worm gear transmission pair under the control of the controller, so that the swing base 93 drives the hydraulic cylinder 92 and the pressure cover 77 to move, and the cover opening action is realized, which facilitates the cover grabbing mechanism to fill each pipe fitting mold into each mold positioning groove 98; the hydraulic cylinder 92 is supplied with oil by an external hydraulic system, and the controller sends a control signal to the hydraulic system; the pressure cover 77 is controlled to be pressed into the high-pressure tank 76 by the hydraulic cylinder 92, the high-pressure tank 76 is filled with water, the pressure cover 77 is pressed to generate high pressure in the high-pressure tank 76, the water enters the extrusion air bag 46, the extrusion air bag 46 is given high pressure, the pipe fitting powder is tightly pressed on the mold iron core 41, and high-pressure forming is realized; the sealing ring 78 is used to improve the sealing between the pressure cover 77 and the high-pressure tank 76; the cooperation among the lock rod 94, the lock catch base 96 and the clamping lock block 95 can realize the swing locking of the swing base 93; when the clamping lock block 95 is clamped in the clamping groove 97, the pressure cover 77 is coaxial with the high-pressure tank 76, and the lock balance unit can share the reverse force acting on the swing base 93, the swing stand 89 and the swing sleeve 90 when the hydraulic cylinder 92 is pressed downward, so that the swing base 93 is in force balance; the pressure relief unit is used to relieve the pressure when the pressure cover 77 moves upward, so that the pressure cover 77 can be separated from the high-pressure tank 76.

[0061] Further, the deflation unit comprises a deflation pipe 80, a deflation rod 82 and a reset spring 87; a deflation hole is vertically arranged on the gland 77; a counterbore 81 coaxial with the deflation hole is arranged on the lower side of the gland 77; the upper end of the deflation pipe 80 is closed; the deflation pipe 80 is fixed on the upper side of the gland 77 and covers the deflation hole; a pressure relief hole 88 is arranged on the lower side of the deflation pipe 80; the deflation rod 82 is slidingly inserted into the deflation hole and the upper end thereof extends into the deflation pipe 80; a guide piston 86 slidingly matched with the inner wall of the deflation pipe 80 is arranged on the extending end of the deflation rod 82; the reset spring 87 is elastically supported between the guide piston 86 and the upper side of the gland 77 and is sleeved on the deflation rod 82; a deflation groove 85 extending to the extending end is vertically arranged on the deflation rod 82; a sealing plug 83 inserted into the counterbore 81 is fixed on the lower end of the deflation rod 82; a sealing gasket 84 is arranged on the upper side of the sealing plug 83.

[0062] When the gland 77 moves to a certain height, negative pressure is generated in the high-pressure tank 76, at this time, the gland 77 continuously moves upward, the sealing plug 83 moves downward under the action of the negative pressure and is separated from the counterbore 81, at this time, external gas enters the high-pressure tank 76 through the pressure relief hole 88 on the deflation pipe 80 and the deflation groove 85 on the deflation rod 82, so that the pressure difference between the inside and outside of the high-pressure tank 76 is balanced, the pressure relief is realized, and it is ensured that the gland 77 can be separated from the high-pressure tank 76; the reset spring 87 drives the guide piston 86 to move upward, so that the sealing plug 83 reenters the counterbore 81 to realize reset.

[0063] In the corrosion-resistant pipe high-pressure forming system provided by the application, the controller adopts an existing single-chip microcomputer control module; the display screen 5 adopts an existing display screen; the transverse movement driving motor 11, the lifting driving motor 16, the longitudinal movement driving motor 18, the first locking driving motor 24, the pushing driving motor 31, the rotating driving motor 54, the second locking driving motor 66, the clamping driving motor 69 and the swinging driving motor 91 all adopt existing stepping motors, and the transverse movement driving circuit, the lifting driving circuit, the longitudinal movement driving circuit, the first locking driving circuit, the pushing driving circuit, the rotating driving circuit, the second locking driving circuit, the clamping driving circuit and the swinging driving circuit all adopt corresponding stepping motor driving circuits; the hydraulic cylinder 92 adopts an existing hydraulic cylinder; the vacuum pump 56 adopts an existing vacuum pump, and the pump driving circuit adopts a corresponding vacuum pump driving circuit; the position sensor 74 adopts an existing position sensor.

[0064] In the corrosion-resistant pipe high-pressure forming system provided by the application, when being installed and used, a staff member sends a control signal to the controller through the key panel 6 and follows the steps as follows:

[0065] In the corrosion-resistant pipe high-pressure forming system provided by the application, when being installed and used, a staff member sends a control signal to the controller through the key panel 6 and follows the steps as follows:

[0066] Second step, according to the signal detected by the position sensor 74 control rotating support unit rotation, make the docking interface 63 align with the branch air pipe 62;

[0067] Third step, artificial loading mold core 41 on the core filling mechanism, the horizontal moving unit, lifting unit and longitudinal moving unit of the overhead traveling crane cooperate operation, drive the core filling mechanism to fill each mold core 41 into each outer mold;

[0068] Fourth step, the locking unit drives the small amplitude of the horizontal movement of the suction pipe 61, so that each branch air pipe 62 of the suction pipe 61 is connected with the docking interface 63 of each outer mold, and the vacuum pump 56 is used for pumping;

[0069] Fifth step, artificial filling of pipe powder into the extrusion air bag 46 and mold core 41; after filling, the locking unit drives the suction pipe 61 to reset; the vacuum pump 56 stops running;

[0070] Sixth step, artificial loading mold cover plate 52 on the cover plate grabbing mechanism, the horizontal moving unit, lifting unit and longitudinal moving unit of the overhead traveling crane cooperate operation, so that the cover plate grabbing mechanism drives a mold cover plate 52 to cover on an outer mold, and artificial fixes the mold cover plate 52 on the outer mold;

[0071] Seventh step, the overhead traveling crane drives the bottom of the outer mold to move away from the rotating support unit, and the corresponding clamping positioning branch is reset;

[0072] Eighth step, the overhead traveling crane and the cover plate grabbing mechanism move the pipe mold through the mold cover plate 52 to fill into a mold positioning groove 98, and then the cover plate grabbing mechanism releases the mold cover plate 52, and the overhead traveling crane resets;

[0073] Ninth step, repeat the sixth step to the eighth step until each mold positioning groove 98 is filled;

[0074] Tenth step, the swing unit drives the hydraulic cylinder 92 and the gland 77 to move until the locking balance unit limits the swing unit;

[0075] Eleventh step, the hydraulic cylinder 92 drives the gland 77 to press down into the high pressure tank 76 to a certain depth, after high pressure forming, the hydraulic cylinder 92 drives the gland 77 to move up, the pressure relief unit releases pressure, and the swing unit opens the cover;

[0076] Twelfth step, the overhead traveling crane cooperates with the cover plate grabbing mechanism to take out each pipe mold and place it on each rotating support unit, and each clamping positioning unit is clamped again;

[0077] Thirteenth step, after artificial taking off each mold cover plate 52, the core filling mechanism takes out each mold core 41 from each outer mold;

[0078] Fourteenth step, artificial taking out the corrosion-resistant pipe.

[0079] While the application has been described and illustrated with reference to specific preferred embodiments, it is not intended that it be limited to these particulars. Various modifications to the application will occur to the skilled person in the art. All such modifications that do not depart from the spirit and scope of the application as defined in the following claims are intended to be embraced by the present application.

Claims

1. A corrosion resistant tube high pressure forming system, characterized by: The utility model relates to a kind of pipe fitting moulding machine, including bottom plate (1), control box (4), overhead rail car, moving track (3), iron core filling mechanism, cover plate grabbing mechanism, mould clamping mechanism, mould air extraction mechanism, high-pressure forming mechanism and multiple pipe fittings moulds;Pipe fitting mould includes outer mould, mould iron core (41) and mould cover plate (52); Mould clamping mechanism is installed on bottom plate (1), for clamping positioning each outer mould;Moving track (3) is transversely installed on bottom plate (1) by support (2);Iron core filling mechanism and cover plate grabbing mechanism are installed on overhead rail car, iron core filling mechanism is used to fill each mould iron core (41) into outer mould on mould clamping mechanism, cover plate grabbing mechanism is used to clamp or release mould cover plate (52);Mould air extraction mechanism is used for the air extraction of outer mould, to facilitate outer mould filling pipe fitting powder;High-pressure forming mechanism is installed on bottom plate (1) in a through manner, for simultaneously accommodating multiple pipe fittings moulds, and simultaneously high-pressure forming is carried out to pipe fitting powder in pipe fittings mould;Cover plate grabbing mechanism is matched with overhead rail car, and pipe fittings mould is moved to high-pressure forming mechanism by grabbing mould cover plate (52);Controller is provided in control box (4);Overhead rail car, iron core filling mechanism, cover plate grabbing mechanism, mould clamping mechanism, mould air extraction mechanism and high-pressure forming mechanism are all driven and controlled by controller;Display screen (5) and key panel (6) electrically connected with controller are installed on control box (4); Iron core filling mechanism includes push drive motor (31), rotating tube (38), rotating push rod (35) and push-down spring (32);Rotating tube (38) is rotatably installed on overhead rail car;Push drive motor (31) drives rotating tube (38) to rotate by push gear transmission pair, and is electrically connected with controller by push drive circuit;Rotating push rod (35) is coaxially slid through rotating tube (38) and synchronously rotates with rotating tube (38);Lifting screw (37) is coaxially fixed on the lower end of rotating push rod (35);Lifting threaded hole is provided on the upper end of mould iron core (41) for the screwing of lifting screw (37);Lower pressing seat (34) is coaxially arranged on the upper end of rotating push rod (35);L-shaped support (30) is installed on overhead rail car;Push-down spring (32) is elastically supported between the horizontal support plate of L-shaped support (30) and lower pressing seat (34).

2. The corrosion-resistant tubing high-pressure forming system of claim 1, wherein: Outer mould includes forming tube (43) and positioning base (51);Multiple air flow grooves (47) are vertically arranged on the inner wall of forming tube (43);Multiple annular tubes (48) are integrally arranged on forming tube (43) in an interval manner, and the annular tubes (48) are connected with air flow grooves (47) through air flow holes;An interface (63) is installed on each annular tube (48);Extrusion air bag (46) is wrapped on the inner wall of forming tube (43);Mould cover plate (52) and positioning base (51) are respectively installed on the upper and lower ends of forming tube (43);Mould iron core (41) is used for coaxially inserting into forming tube (43).

3. The corrosion-resistant tubing high-pressure forming system of claim 1, wherein: The overhead traveling crane comprises a trolley pipe body (7), a mounting seat (20), a horizontal moving unit, a lifting unit and a longitudinal moving unit; the trolley pipe body (7) is horizontally slidably mounted on a moving track (3); the horizontal moving unit is used for driving the trolley pipe body (7) to move horizontally; the lifting unit is mounted on the trolley pipe body (7); the longitudinal moving unit is mounted on the lifting unit and is driven by the lifting unit to move vertically; the mounting seat (20) is mounted on the longitudinal moving unit and is driven by the longitudinal moving unit to move longitudinally; the core filling mechanism and the cover plate grabbing mechanism are both mounted on the mounting seat (20); the horizontal moving unit, the lifting unit and the longitudinal moving unit are all driven and controlled by a controller.

4. The corrosion-resistant tubing high-pressure forming system of claim 1, wherein: The cover plate grabbing mechanism comprises a first locking driving motor (24), a plug-in mounting seat (21), a locking inner threaded pipe (23) and a locking outer threaded pipe (27); the plug-in mounting seat (21) is mounted on the overhead traveling crane; a lifting lug (53) for being plugged into the plug-in mounting seat (21) is arranged on a mold cover plate (52); the locking inner threaded pipe (23) is fixedly communicated on the plug-in mounting seat (21); the locking outer threaded pipe (27) is screwingly mounted in the locking inner threaded pipe (23); a locking rotating shaft (25) for driving the locking outer threaded pipe (27) to rotate is rotatably mounted in the locking inner threaded pipe (23); the first locking driving motor (24) is used for driving the locking rotating shaft (25) to rotate and is electrically connected with the controller through a first locking driving circuit; a locking plug pipe (28) with an end portion for extending into a lifting hole of the lifting lug (53) is mounted on the locking outer threaded pipe (27).

5. The corrosion-resistant tubing high-pressure forming system of claim 1, wherein: The mold clamping mechanism comprises a positioning support and a plurality of clamping positioning branches; each clamping positioning branch comprises a clamping positioning unit and a rotating supporting unit; The positioning support is horizontally mounted on the bottom plate (1); the clamping positioning units of the clamping positioning branches are spacedly mounted on the positioning support and are all used for movably clamping the outer mold to keep the outer mold vertical; each rotating supporting unit is mounted on the bottom plate (1) and corresponds to each clamping positioning branch in position, and is used for supporting the outer mold on the corresponding clamping positioning branch and driving the outer mold to rotate; the clamping positioning units and the rotating supporting units are all driven and controlled by the controller.

6. The corrosion-resistant tubing high-pressure forming system of claim 5, wherein: The rotating supporting unit comprises a rotating driving motor (54) and a supporting turntable (55); the supporting turntable (55) is rotatably mounted on the bottom plate (1) and is used for coaxially supporting the bottom of the outer mold; The rotating driving motor (54) drives the supporting turntable (55) to rotate through a rotating worm and gear transmission pair and is electrically connected with the controller through a rotating driving circuit; a plurality of position sensors (74) electrically connected with the controller are mounted on the positioning support, and each position sensor (74) corresponds to each clamping positioning branch in position and is used for detecting the rotating position of each outer mold.

7. The corrosion-resistant tubing high-pressure forming system of claim 5, wherein: The mold air extraction mechanism comprises a vacuum pump (56), a butt joint pipe (57), a plurality of air extraction pipes (61) and a plurality of locking units; each locking unit is installed on the positioning support in a spaced manner; each air extraction pipe (61) is vertically installed on each locking unit and is driven by the locking unit to move horizontally; a plurality of branch air pipes (62) are communicated on the air extraction pipe (61); the branch air pipes (62) of each air extraction pipe (61) are respectively used for being butt jointed on the outer mold on each clamping positioning branch; the vacuum pump (56) is installed on the bottom plate (1) and is electrically connected with the controller through a pump driving circuit; the butt joint pipe (57) is butt jointed on the air inlet of the vacuum pump (56); a plurality of check valves (58) are installed on the butt joint pipe (57); each check valve (58) is respectively butt jointed with each air extraction pipe (61) through an air extraction hose (59).

8. The corrosion-resistant tubing high-pressure forming system of claim 1, wherein: The high-pressure forming mechanism comprises a high-pressure tank (76), a pressure cover (77), a hydraulic cylinder (92), a lock balance unit and a swing unit; The high-pressure tank (76) is installed on the bottom plate (1) in a penetrating manner and is used for accommodating each pipe mold vertically placed; the swing unit is installed on the bottom plate (1) and is driven and controlled by the controller; The hydraulic cylinder (92) is installed on the swing unit and is driven by the swing unit to swing horizontally; the pressure cover (77) is installed on the output end of the hydraulic cylinder (92); the hydraulic cylinder (92) is used for driving the pressure cover (77) to enter and exit the high-pressure tank (76), and the circumferential side of the pressure cover (77) is in sealing sliding fit with the inner wall of the high-pressure tank (76); the lock balance unit is used for locking the swing unit; a gas release unit is installed on the pressure cover (77) and is used for releasing pressure in the high-pressure tank (76) when the pressure cover (77) moves.

9. The corrosion-resistant tubing high-pressure forming system of claim 8, wherein: The gas release unit comprises a gas release rod (82) and a return spring (87); a gas release hole is vertically arranged on the pressure cover (77); a counterbore (81) is coaxially arranged at the lower end of the gas release hole; a gas release pipe (80) with a closed top is coveringly installed on the upper end of the gas release hole; a pressure relief hole (88) is arranged on the lower side of the gas release pipe (80); the gas release rod (82) is slidingly inserted into the gas release hole and the upper end thereof extends into the gas release pipe (80); a guide piston (86) slidingly installed in the gas release pipe (80) is installed on the extending end of the gas release rod (82); the return spring (87) is used for driving the guide piston (86) to move upward; a gas release groove (85) extending to the upper end is vertically arranged on the gas release rod (82); a sealing plug (83) sealingly inserted into the counterbore (81) is fixed on the lower end of the gas release rod (82).

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