A forming device for machining of titanium alloy thin-walled pipes

Abstract

The application discloses a forming device for processing titanium alloy thin-wall pipe, and belongs to the technical field of metal processing forming equipment. A pre-pressing heating mechanism, a high-frequency heating rolling mechanism and a cold-drawing pipe forming mechanism are arranged on a first supporting base. After a titanium alloy plate passes through the cold-drawing pipe forming mechanism, a cold-drawing pipe is formed. After a pipe seam welding mechanism welds the pipe seam of the cold-drawing pipe, a pipe body is formed. After a stretching mechanism stretches the pipe body, a titanium alloy thin-wall pipe is formed. The titanium alloy plate is pre-pressed and heated and hot-rolled. The titanium alloy plate after being heated and rolled enters a space between a forming block and a forming tire mold to be pre-formed. The titanium alloy plate is continuously formed into a cold-drawing pipe through the outer circumference of a mold core. After a welding gun welds the pipe seam of the cold-drawing pipe, the pipe body is formed. After the stretching mechanism clamps and stretches the pipe body, the titanium alloy thin-wall pipe is formed. The application has the advantages of high working efficiency, low cost, simple operation and high product yield.

Description

Technical Field

[0001] This invention belongs to the technical field of metal processing and forming equipment, specifically relating to a forming device for processing thin-walled titanium alloy tubes. Background Technology

[0002] Titanium alloy thin-walled tubes are widely used in aerospace, petrochemical, pharmaceutical, salt production, metallurgy and medical industries due to their advantages such as low density, high hardness, poor plasticity and good corrosion resistance.

[0003] Currently, the forming equipment for manufacturing titanium tubes consists of multiple mechanical devices, including a tube blank preparation device, a heat treatment device, a forming device, and a surface treatment device. This method suffers from low efficiency, high cost, and low yield. Therefore, there is a need for an integrated forming equipment for processing thin-walled titanium alloy tubes. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a forming device for processing thin-walled titanium alloy tubes that automatically completes pre-pressing heating, high-frequency heating rolling, cold drawing tube forming, tube seam welding and stretching mechanisms.

[0005] The technical solution adopted to solve the above-mentioned technical problems is as follows: A pre-pressing heating mechanism for heating and pre-pressing the titanium alloy plate is provided on the first support base; a high-frequency heating rolling mechanism for heating and rolling the titanium alloy plate is provided on the first support base, the high-frequency heating rolling mechanism is located at the outlet end of the pre-pressing heating mechanism; a cold-drawing tube forming mechanism is provided on the first support base, the titanium alloy plate is formed into a cold-drawn tube after passing through the cold-drawing tube forming mechanism; a tube seam welding mechanism is provided at the outlet end of the cold-drawing tube forming mechanism, the tube seam of the cold-drawn tube is welded by the tube seam welding mechanism to form a tube body; a stretching mechanism is provided at the outlet end of the cold-drawing tube forming mechanism, the stretching mechanism stretches the tube body to form a titanium alloy thin-walled tube; the pre-pressing heating mechanism is: a first support frame is provided on the first support base, and a first support plate is provided at each end of one side of the first support frame. Two first support plates are each machined with a first sliding hole, which is a horizontal sliding hole. The two first sliding holes are slidably connected to a first support rod in the horizontal direction. The two ends of the first support rod are respectively fixedly connected to a fixed block in the first sliding hole by a second spring. A second support frame is set on the first support rod. Multiple flame nozzles for heating the titanium alloy plate are evenly arranged on the second support frame. A first lower roller is rotatably installed between the two first support plates. The two first support plates are each machined with a second sliding hole, which is a vertical sliding hole. A first upper roller is slidably connected in the two second sliding holes in the vertical direction. The first upper roller is located above the first lower roller. The titanium alloy plate is located between the first upper roller and the first lower roller. The first upper roller and the first lower roller pre-press the titanium alloy plate. The two ends of the first upper roller are respectively connected to the top surface of the second sliding hole by a first spring.

[0006] Furthermore, a rotating rod is rotatably installed between the two first support plates, and a first connecting plate is provided at each end of the rotating rod. Each first connecting plate is rotatably connected to one end of the first connecting rod. A handwheel is provided at one end of the rotating rod, and a handle is provided on the handwheel. The two ends of the first upper roller are rotatably connected to the other end of the first connecting rod.

[0007] Furthermore, the high-frequency heating rolling mechanism comprises: a support shaft is provided on both sides of the first support frame, and a high-frequency coil for heating the titanium alloy plate is provided between the two support shafts; a second support plate is provided at both ends of the other side of the first support frame; a second lower roll is rotatably mounted on the two second support plates; a first motor for driving the second lower roll is provided on the second support plate; a third sliding hole is machined on both sides of the second support plate; a second upper roll is slidably connected in the vertical direction through the two third sliding holes; a first sliding rod is provided at both ends of the second upper roll; each first sliding rod is slidably connected to the second support plate in the vertical direction; a third spring is provided on each first sliding rod; one end of each third spring is connected to the second upper roll; and the other end of each third spring is connected to the second support plate; the second upper roll is located above the second lower roll; the titanium alloy plate is located between the second lower roll and the second upper roll; and the second lower roll and the second upper roll perform hot rolling on the titanium alloy plate.

[0008] Furthermore, the cold-drawn tube forming mechanism is as follows: a third support frame is provided on the first support base, a base plate is provided at the bottom of the third support frame, a base is provided on the base plate, the third support frame is fixedly connected to the mold core through multiple vertical third connecting rods and multiple horizontal second connecting rods, a second support seat for supporting the mold core is provided on the base, multiple forming blocks are provided on the base, forming molds are provided on the multiple forming blocks, the mold core penetrates through the forming mold, and the titanium alloy plate passes through the space between the multiple forming blocks and the forming mold in sequence, forming a cold-drawn tube at one end of the outer circumference of the mold core.

[0009] Furthermore, the pipe seam welding mechanism comprises: a third support plate located on one side of the first support base; two second support rods on the third support plate; a second connecting plate at the top of the two second support rods; a sliding frame slidably connected to the second support rods in a vertical direction; a fifth spring on the second support rods; one end of the fifth spring fixedly connected to the third support plate; the other end of the fifth spring fixedly connected to the bottom surface of the sliding frame; a first fixing plate at the bottom of the sliding frame; an abutment wheel rotatably mounted on the first fixing plate to contact the bottom of the cold-drawn pipe; a sliding rod slidably connected to the top of the sliding frame in a vertical direction; a fourth spring on the sliding rod; one end of the fourth spring fixedly connected to the sliding frame; the other end of the fourth spring connected to a fixing ring on the sliding rod; and a welding gun for welding the pipe seam of the cold-drawn pipe at the bottom of the sliding rod.

[0010] Furthermore, a second fixing plate is provided at the bottom of the first support base, and a third support rod is provided between the third support plate and the second fixing plate. The third support rod is slidably connected to the first fixing plate in the vertical direction.

[0011] Furthermore, the stretching mechanism comprises: a fourth support frame located at the outlet end of the pipe seam welding mechanism; a fourth support rod mounted on the fourth support frame; two clamping plates slidably connected to the fourth support rod in the horizontal direction, clamping the pipe body between the two clamping plates; a sixth spring mounted on each side of the fourth support rod, with one end of each sixth spring fixedly connected to the fourth support frame and the other end of each sixth spring fixedly connected to the clamping plate; a third support seat located on one side of the fourth support frame; a second transmission wheel rotatably mounted on one side of the third support seat; a first transmission wheel rotatably mounted on the other side of the third support seat; a second motor driving the first transmission wheel to rotate on the third support seat; the second transmission wheel being connected to the first transmission wheel via a chain; the chain being fixedly connected to a third connecting plate; the third connecting plate being slidably connected to a guide rod on the third support seat in the horizontal direction; and a clamping assembly for clamping the pipe body mounted on the third connecting plate.

[0012] Furthermore, the clamping assembly comprises: a connecting cylinder on the third connecting plate, an electric cylinder on the connecting cylinder, the output end of the electric cylinder being fixedly connected to the support plate, second sliding rods evenly arranged in the circumferential direction of the support plate, and multiple fourth fixing plates and third fixing plates evenly arranged in the circumferential direction of the connecting cylinder. Each fourth fixing plate is machined with a fourth sliding hole, and each second sliding rod is provided with a slider that is slidably connected to the fourth sliding hole. Two fourth connecting rods are rotatably mounted on one end of each second sliding rod, and a third sliding rod is provided on one end of each of the two fourth connecting rods. Each third fixing plate is machined with a fifth sliding hole that is slidably connected to the third sliding rod, and a clamping block for clamping the tube is provided on the other end of each fourth connecting rod.

[0013] The beneficial effects of the present invention are as follows: (1) The present invention uses multiple flame nozzles to preheat the titanium alloy plate by flame spraying, the first upper roll and the first lower roll pre-press the titanium alloy plate, the titanium alloy plate after pre-pressing and heating is heated by a high frequency coil, the second upper roll and the second lower roll hot roll the titanium alloy plate, the titanium alloy plate after heating and rolling is pre-formed in the space between the forming block and the forming mold, and then cold-drawn tube is formed by the outer circumference of the mold core. The welding gun welds the tube seam of the cold-drawn tube to form the tube body, and the stretching mechanism clamps and stretches the tube body to form a titanium alloy thin-walled tube. It can automatically complete the functions of pre-pressing and heating, high frequency heating and rolling, cold-drawn tube forming, tube seam welding, and stretching mechanism. The present invention has the advantages of high working efficiency, low cost, simple operation and high yield.

[0014] (2) The present invention uses a support plate to drive multiple second slide rods in the circumferential direction. The slider on each second slide rod slides in the fourth slide hole. Each second slide rod drives two fourth connecting rods to move. The third slide rod on the two fourth connecting rods slides in the fifth slide hole. The clamping block at one end of each fourth connecting rod clamps the outer circumference of the tube body, which has a stable clamping effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of one embodiment of the forming apparatus of the present invention for processing thin-walled titanium alloy tubes.

[0016] Figure 2 This is a schematic diagram of the pre-pressing heating mechanism and the high-frequency heating rolling mechanism.

[0017] Figure 3 yes Figure 2 A structural diagram from another angle.

[0018] Figure 4 This is a schematic diagram of the pre-compression heating mechanism.

[0019] Figure 5 yes Figure 4 The first part of the structure is shown in the diagram.

[0020] Figure 6 yes Figure 4 The second part of the structure is shown in the diagram.

[0021] Figure 7 This is a schematic diagram of the high-frequency heating rolling mechanism.

[0022] Figure 8 yes Figure 7 A structural diagram from another angle.

[0023] Figure 9 This is a schematic diagram of the cold-drawn tube forming mechanism.

[0024] Figure 10 This is a schematic diagram of the components on the base.

[0025] Figure 11 This is a structural diagram of the base and the molding block.

[0026] Figure 12 This is a structural diagram of the third support frame and the mold core.

[0027] Figure 13 This is a schematic diagram of the pipe seam welding mechanism.

[0028] Figure 14 yes Figure 13 A partial structural diagram.

[0029] Figure 15 yes Figure 14 A structural diagram from another angle.

[0030] Figure 16 This is a schematic diagram of the tensioning mechanism.

[0031] Figure 17 This is a schematic diagram of the components on the fourth support frame.

[0032] Figure 18 yes Figure 16 A partial structural diagram.

[0033] Figure 19 This is a schematic diagram of the clamping mechanism.

[0034] Figure 20 yes Figure 19 A partial structural diagram.

[0035] Figure 21 This is a schematic diagram of the components on the connecting cylinder.

[0036] Figure 22 This is a structural diagram of the second slide rod, the fourth connecting rod, the third slide rod, and the clamping block.

[0037] Reference numerals: 1. Titanium alloy plate; 2. First support base; 301. First support rod; 302. First sliding hole; 303. First support frame; 304. First upper roller; 305. Handwheel; 306. Handle; 307. Second sliding hole; 308. First lower roller; 309. Flame nozzle; 310. Second support frame; 311. Rotating rod; 312. First connecting rod; 313. First connecting plate; 314. First spring; 315. Second spring; 316. Fixing block; 317. First support plate; 401. First motor; 402. Second support plate; 403. Second lower roller; 404. Second upper roller; 405. High-frequency coil; 406. Support shaft; 407. First sliding rod; 408. Third spring; 409. Third sliding hole; 501. Third support frame; 502. Second connecting rod; 503. Third connecting rod; 504. Mold core; 505. Base; 506. Base plate; 507. Forming mold; 508. Forming block; 509. Second support base; 601, second support rod; 602, sliding frame; 603, fourth spring; 604, sliding rod; 605, welding gun; 606, contact wheel; 607, first fixing plate; 608, fifth spring; 609, third support plate; 610, second fixing plate; 611, third support rod; 612, second connecting plate; 701, chain; 702, third support base; 703, first transmission wheel; 704, second motor; 705, fourth support frame; 706. 707. Sixth spring; 708. Fourth support rod; 709. Clamping plate; 710. Second transmission wheel; 711. Guide rod; 712. Third connecting plate; 713. Second slide rod; 714. Support plate; 715. Electric cylinder; 716. Connecting cylinder; 717. Fourth sliding hole; 718. Clamping block; 719. Fourth connecting rod; 720. Third fixing plate; 721. Fifth sliding hole; 722. Fourth fixing plate; 723. Third slide rod; 724. Slider; 8. Cold-drawn tube; 9. Tube body. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0039] like Figure 1 As shown, a forming device for processing thin-walled titanium alloy tubes in this embodiment is composed of a titanium alloy plate 1, a first support base 2, a pre-pressing heating mechanism, a high-frequency heating rolling mechanism, a cold-drawn tube forming mechanism, a tube seam welding mechanism, a stretching mechanism, a cold-drawn tube 8, and a tube body 9 connected together.

[0040] A pre-pressing heating mechanism for heating and pre-pressing titanium alloy plate 1 is provided on the first support base 2. A high-frequency heating rolling mechanism for heating and rolling forming titanium alloy plate 1 is provided on the first support base 2. The high-frequency heating rolling mechanism is located at the outlet end of the pre-pressing heating mechanism. A cold drawing tube forming mechanism is provided on the first support base 2. After passing through the cold drawing tube forming mechanism, titanium alloy plate 1 is formed into cold drawing tube 8. A tube seam welding mechanism is provided at the outlet end of the cold drawing tube forming mechanism. After welding the tube seam of the cold drawing tube 8, the tube body 9 is formed. A stretching mechanism is provided at the outlet end of the cold drawing tube forming mechanism. After stretching the tube body 9, the titanium alloy thin-walled tube is formed.

[0041] like Figures 2 to 6 As shown, the pre-pressurization heating mechanism is composed of a first support rod 301, a first sliding hole 302, a first support frame 303, a first upper roller 304, a handwheel 305, a handle 306, a second sliding hole 307, a first lower roller 308, a flame nozzle 309, a second support frame 310, a rotating rod 311, a first connecting rod 312, a first connecting plate 313, a first spring 314, a second spring 315, a fixing block 316, and a first support plate 317.

[0042] The pre-pressurization heating mechanism is as follows: A first support frame 303 is provided on the first support base 2. First support plates 317 are respectively provided at both ends of one side of the first support frame 303. First sliding holes 302 are machined on the two first support plates 317. The first sliding holes 302 are horizontal sliding holes. The two first sliding holes 302 are slidably connected to a first support rod 301 in the horizontal direction. The two ends of the first support rod 301 are respectively fixedly connected to the fixing blocks 316 in the first sliding holes 302 by second springs 315. A second support frame 310 is provided on the first support rod 301. Multiple heating elements for heating the titanium alloy plate 1 are evenly arranged on the second support frame 310. The flame nozzle 309 has a first lower roller 308 rotatably mounted between two first support plates 317. The two first support plates 317 are respectively machined with second sliding holes 307, which are vertical sliding holes. A first upper roller 304 is slidably connected in the vertical direction between the two second sliding holes 307. The first upper roller 304 is located above the first lower roller 308. The titanium alloy plate 1 is located between the first upper roller 304 and the first lower roller 308. The first upper roller 304 and the first lower roller 308 pre-press the titanium alloy plate 1. The two ends of the first upper roller 304 are respectively connected to the inner top surface of the second sliding hole 307 through a first spring 314.

[0043] A rotating rod 311 is rotatably mounted between two first support plates 317. A first connecting plate 313 is provided at both ends of the rotating rod 311. Each first connecting plate 313 is rotatably connected to one end of the first connecting rod 312. A handwheel 305 is provided at one end of the rotating rod 311. A handle 306 is provided on the handwheel 305. Both ends of the first upper roller 304 are rotatably connected to the other end of the first connecting rod 312.

[0044] like Figures 2 to 3 , Figures 7 to 8 As shown, the high-frequency heating rolling mechanism is composed of a first motor 401, a second support plate 402, a second lower roll 403, a second upper roll 404, a high-frequency coil 405, a support shaft 406, a first slide rod 407, a third spring 408, and a third sliding hole 409.

[0045] The high-frequency heating rolling mechanism is as follows: Support shafts 406 are respectively provided on both sides of the first support frame 303; a high-frequency coil 405 for heating the titanium alloy plate 1 is arranged between the two support shafts 406; second support plates 402 are respectively provided at both ends of the other side of the first support frame 303; second lower rolls 403 are rotatably mounted on the two second support plates 402; a first motor 401 for driving the second lower rolls 403 is provided on the second support plates 402; third sliding holes 409 are respectively machined on both sides of the second support plates 402; second upper rolls are slidably connected in the vertical direction through the two third sliding holes 409. 404, the second upper roll 404 is provided with first slide rods 407 at both ends, each first slide rod 407 is slidably connected to the second support plate 402 in the vertical direction, and each first slide rod 407 is provided with a third spring 408, one end of each third spring 408 is connected to the second upper roll 404, and the other end of each third spring 408 is connected to the second support plate 402. The second upper roll 404 is located above the second lower roll 403, and the titanium alloy plate 1 is located between the second lower roll 403 and the second upper roll 404. The second lower roll 403 and the second upper roll 404 are hot rolled together.

[0046] like Figures 9 to 12 As shown, the cold-drawn tube forming mechanism is composed of a third support frame 501, a second connecting rod 502, a third connecting rod 503, a mold core 504, a base 505, a base plate 506, a forming mold 507, a forming block 508, and a second support seat 509.

[0047] The cold-drawn tube forming mechanism is as follows: a third support frame 501 is provided on the first support base 2, a base plate 506 is provided at the bottom of the third support frame 501, a base 505 is provided on the base plate 506, the third support frame 501 is fixedly connected to the mold core 504 through multiple vertical third connecting rods 503 and multiple horizontal second connecting rods 502, a second support base 509 for supporting the mold core 504 is provided on the base 505, multiple forming blocks 508 are provided on the base 505, a forming mold 507 is provided on the multiple forming blocks 508, the mold core 504 passes through the forming mold 507, the titanium alloy plate 1 passes through the space between the multiple forming blocks 508 and the forming mold 507 in sequence, and the outer circumference of one end of the mold core 504 forms a cold-drawn tube 8.

[0048] like Figures 13 to 15 As shown, the pipe seam welding mechanism is composed of a second support rod 601, a sliding frame 602, a fourth spring 603, a sliding rod 604, a welding gun 605, a contact wheel 606, a first fixing plate 607, a fifth spring 608, a third support plate 609, a second fixing plate 610, a third support rod 611, and a second connecting plate 612.

[0049] The pipe seam welding mechanism is as follows: A third support plate 609 is provided on one side of the first support base 2. Two second support rods 601 are provided on the third support plate 609. A second connecting plate 612 is provided at the top of the two second support rods 601. A sliding frame 602 is slidably connected to the second support rods 601 in the vertical direction. A fifth spring 608 is provided on the second support rods 601. One end of the fifth spring 608 is fixedly connected to the third support plate 609, and the other end of the fifth spring 608 is fixedly connected to the bottom surface of the sliding frame 602. The bottom of the sliding frame 602 is provided with a first fixing plate 607. A contact wheel 606 that contacts the bottom of the cold-drawn tube 8 is rotatably mounted on the first fixing plate 607. A sliding rod 604 is slidably connected to the top of the sliding frame 602 in a vertical direction. A fourth spring 603 is provided on the sliding rod 604. One end of the fourth spring 603 is fixedly connected to the sliding frame 602, and the other end of the fourth spring 603 is connected to a fixing ring on the sliding rod 604. A welding gun 605 for welding the seam of the cold-drawn tube 8 is provided at the bottom of the sliding rod 604.

[0050] The bottom of the first support base 2 is provided with a second fixing plate 610, and a third support rod 611 is provided between the third support plate 609 and the second fixing plate 610. The third support rod 611 is slidably connected to the first fixing plate 607 in the vertical direction.

[0051] like Figures 16 to 22As shown, the tensioning mechanism is composed of a chain 701, a third support base 702, a first transmission wheel 703, a second motor 704, a fourth support frame 705, a sixth spring 706, a fourth support rod 707, a clamping plate 708, a second transmission wheel 709, a guide rod 710, a third connecting plate 711, a second slide rod 712, a support plate 713, an electric cylinder 714, a connecting cylinder 715, a fourth sliding hole 716, a clamping block 717, a fourth connecting rod 718, a third fixing plate 719, a fifth sliding hole 720, a fourth fixing plate 721, a third slide rod 722, and a slider 723.

[0052] The tensioning mechanism consists of: a fourth support frame 705 located at the outlet end of the pipe seam welding mechanism; a fourth support rod 707 mounted on the fourth support frame 705; two clamping plates 708 slidably connected to the fourth support rod 707 in the horizontal direction, clamping the pipe body 9 between the two clamping plates 708; sixth springs 706 mounted on both sides of the fourth support rod 707, with one end of each sixth spring 706 fixedly connected to the fourth support frame 705 and the other end fixedly connected to the clamping plate 708; and a third support seat 702 located on one side of the fourth support frame 705. A second transmission wheel 709 is rotatably mounted on one side of the third support 702, and a first transmission wheel 703 is rotatably mounted on the other side of the third support 702. A second motor 704 is provided on the third support 702 to drive the first transmission wheel 703 to rotate. The second transmission wheel 709 is connected to the first transmission wheel 703 through a chain 701. The chain 701 is fixedly connected to the third connecting plate 711. The third connecting plate 711 is slidably connected to the guide rod 710 on the third support 702 in the horizontal direction. A clamping assembly for clamping the tube body 9 is provided on the third connecting plate 711.

[0053] The clamping assembly consists of: a connecting cylinder 715 mounted on a third connecting plate 711; an electric cylinder 714 mounted on the connecting cylinder 715; the output end of the electric cylinder 714 fixedly connected to a support plate 713; second sliding rods 712 evenly arranged around the circumference of the support plate 713; multiple fourth fixing plates 721 and third fixing plates 719 evenly arranged around the circumference of the connecting cylinder 715; a fourth sliding hole 716 machined on each fourth fixing plate 721; a slider 723 slidably connected to the fourth sliding hole 716 mounted on each second sliding rod 712; two fourth connecting rods 718 rotatably mounted on one end of each second sliding rod 712; a third sliding rod 722 mounted on one end of each of the two fourth connecting rods 718; a fifth sliding hole 720 slidably connected to the third sliding rod 722 mounted on each third fixing plate 719; and a clamping block 717 for clamping the tube body 9 mounted on the other end of each fourth connecting rod 718.

[0054] The working principle of this embodiment is as follows: (1) The pre-pressing heating mechanism heats and pre-presses the titanium alloy plate 1: The titanium alloy plate 1 passes between the first upper roller 304 and the first lower roller 308. Multiple flame nozzles 309 preheat the titanium alloy plate 1 by spraying fire. The handle 306 is manually turned. The handle 306 drives the handwheel 305 and the rotating rod 311 to rotate. The rotating rod 311 drives the first connecting plates 313 at both ends to rotate. The rotating rod 311 drives the first upper roller 304 to move in the second sliding hole 307 in the vertical direction through the first connecting rod 312. The first spring 314 is used for reset. The first upper roller 304 and the first lower roller 308 pre-press the titanium alloy plate 1.

[0055] Meanwhile, the two ends of the first support rod 301 can slide horizontally in the first sliding hole 302, and the second spring 315 is used for reset and can adjust the position of the flame nozzle 309.

[0056] The high-frequency heating rolling mechanism heats and rolls the titanium alloy plate 1: the titanium alloy plate 1 after pre-pressing and heating treatment enters the high-frequency coil 405, the high-frequency coil 405 heats the titanium alloy plate 1, the output shaft of the first motor 401 drives the second lower roll 403 to rotate, and the heated titanium alloy plate 1 is transferred between the second lower roll 403 and the second upper roll 404. At the same time, the first sliding rods 407 at both ends of the second upper roll 404 can move vertically on the second support plate 402, and the two ends of the second upper roll 404 can move vertically in the third sliding hole 409. The third spring 408 is used for reset and for adjusting the distance between the second upper roll 404 and the second lower roll 403. The second upper roll 404 and the second lower roll 403 perform hot rolling on the titanium alloy plate 1.

[0057] The cold-drawn tube forming mechanism forms a cold-drawn tube 8 after forming the titanium alloy plate 1: the heated and rolled titanium alloy plate 1 enters the space between the forming block 508 and the forming mold 507 for pre-forming, and continues to be formed into a cold-drawn tube 8 through the outer circumference of the mold core 504.

[0058] After the weld seam of the cold-drawn tube 8 is welded by the pipe seam welding mechanism, the tube body 9 is formed. The cold-drawn tube 8 formed on the outer circumference of the mold core 504 comes into contact with the abutment wheel 606 during the movement. The abutment wheel 606 drives the sliding frame 602 to move downward in the vertical direction in the second support rod 601 through the first fixed plate 607. The fifth spring 608 is used for reset. The sliding frame 602 drives the sliding rod 604 and the welding gun 605 to move downward. During the horizontal movement of the cold-drawn tube 8, the welding gun 605 welds the pipe seam of the cold-drawn tube 8 to form the tube body 9.

[0059] The stretching mechanism clamps and stretches the tube 9 to form a titanium alloy thin-walled tube: Under the action of the sixth spring 706, the tube 9 enters between the two clamping plates 708 and is clamped there. The tube 9 enters the clamping assembly, which clamps the tube 9. The output shaft of the second motor 704 drives the first transmission wheel 703 to rotate. The first transmission wheel 703 drives the second transmission wheel 709 to rotate through the chain 701. The second transmission wheel 709 drives the clamping assembly on the third connecting plate 711 to move. The third connecting plate 711 moves horizontally on the guide rod 710. The clamping assembly stretches the tube 9 to form a titanium alloy thin-walled tube.

[0060] The working principle of the clamping assembly for clamping the tube 9 is as follows: the output end of the electric cylinder 714 drives the support plate 713 to move, the support plate 713 drives multiple second slide rods 712 to move in the circumferential direction, the slider 723 on each second slide rod 712 slides in the fourth slide hole 716, each second slide rod 712 drives two fourth connecting rods 718 to move, the third slide rod 722 on the two fourth connecting rods 718 slides in the fifth slide hole 720, and the clamping block 717 at one end of each fourth connecting rod 718 clamps the outer circumference of the tube 9.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A forming apparatus for processing thin-walled titanium alloy tubes, characterized in that: A pre-pressing heating mechanism for heating and pre-pressing titanium alloy plate (1) is provided on the first support base (2). A high-frequency heating rolling mechanism for heating and rolling forming titanium alloy plate (1) is provided on the first support base (2). The high-frequency heating rolling mechanism is located at the outlet end of the pre-pressing heating mechanism. A cold drawing tube forming mechanism is provided on the first support base (2). After passing through the cold drawing tube forming mechanism, the titanium alloy plate (1) forms a cold drawing tube (8). A tube seam welding mechanism is provided at the outlet end of the cold drawing tube forming mechanism. After welding the tube seam of the cold drawing tube (8), the tube body (9) is formed. A stretching mechanism is provided at the outlet end of the cold drawing tube forming mechanism. After stretching the tube body (9), a titanium alloy thin-walled tube is formed. The pre-pressing heating mechanism is as follows: a first support frame (303) is provided on the first support base (2), and a first support plate (317) is provided at both ends of one side of the first support frame (303). A first sliding hole (302) is machined on each of the two first support plates (317). The first sliding hole (302) is a horizontal sliding hole. A first support rod (301) is slidably connected to the two first sliding holes (302) in the horizontal direction. The two ends of the first support rod (301) are fixedly connected to the fixing block (316) in the first sliding hole (302) by a second spring (315). A second support frame (310) is provided on the first support rod (301). A plurality of flames for heating the titanium alloy plate (1) are evenly arranged on the second support frame (310). The nozzle (309) has a first lower roller (308) rotatably mounted between two first support plates (317). The two first support plates (317) are respectively machined with second sliding holes (307). The second sliding holes (307) are vertical sliding holes. The two second sliding holes (307) are slidably connected in the vertical direction to the first upper roller (304). The first upper roller (304) is located above the first lower roller (308). The titanium alloy plate (1) is located between the first upper roller (304) and the first lower roller (308). The first upper roller (304) and the first lower roller (308) pre-press the titanium alloy plate (1). The two ends of the first upper roller (304) are respectively connected to the inner top surface of the second sliding hole (307) through the first spring (314). The high-frequency heating rolling mechanism is as follows: a first support frame (303) is provided with support shafts (406) on both sides, and a high-frequency coil (405) for heating the titanium alloy plate (1) is provided between the two support shafts (406). A second support plate (402) is provided at both ends of the other side of the first support frame (303). A second lower roll (403) is rotatably mounted on the two second support plates (402). A first motor (401) for driving the second lower roll (403) to rotate is provided on the second support plate (402). A third sliding hole (409) is machined on both sides of the second support plate (402). A second upper roll (404) is slidably connected in the two third sliding holes (409) in the vertical direction. The second upper roll (404) is provided with first slide rods (407) at both ends. Each first slide rod (407) is slidably connected to the second support plate (402) in the vertical direction. Each first slide rod (407) is provided with a third spring (408). One end of each third spring (408) is connected to the second upper roll (404), and the other end of each third spring (408) is connected to the second support plate (402). The second upper roll (404) is located above the second lower roll (403). The titanium alloy plate (1) is located between the second lower roll (403) and the second upper roll (404). The second lower roll (403) and the second upper roll (404) perform hot rolling on the titanium alloy plate (1). The cold-drawn tube forming mechanism is as follows: a third support frame (501) is provided on the first support base (2), a base plate (506) is provided at the bottom of the third support frame (501), a base plate (505) is provided on the base plate (506), the third support frame (501) is fixedly connected to the mold core (504) through multiple vertical third connecting rods (503) and multiple horizontal second connecting rods (502), a second support base (509) for supporting the mold core (504) is provided on the base plate (505), multiple forming blocks (508) are provided on the base plate (505), a forming mold (507) is provided on the multiple forming blocks (508), the mold core (504) passes through the forming mold (507), the titanium alloy plate (1) passes through the space between the multiple forming blocks (508) and the forming mold (507) in sequence, and a cold-drawn tube (8) is formed on the outer circumference of one end of the mold core (504).

2. The forming apparatus for processing thin-walled titanium alloy tubes according to claim 1, characterized in that: A rotating rod (311) is rotatably mounted between the two first support plates (317). A first connecting plate (313) is provided at both ends of the rotating rod (311). Each first connecting plate (313) is rotatably connected to one end of the first connecting rod (312). A handwheel (305) is provided at one end of the rotating rod (311). A handle (306) is provided on the handwheel (305). Both ends of the first upper roller (304) are rotatably connected to the other end of the first connecting rod (312).

3. The forming apparatus for processing thin-walled titanium alloy tubes according to claim 1, characterized in that, The aforementioned pipe seam welding mechanism is as follows: a third support plate (609) is provided on one side of the first support base (2), two second support rods (601) are provided on the third support plate (609), a second connecting plate (612) is provided at the top of the two second support rods (601), a sliding frame (602) is slidably connected to the second support rods (601) in the vertical direction, a fifth spring (608) is provided on the second support rods (601), one end of the fifth spring (608) is fixedly connected to the third support plate (609), and the other end of the fifth spring (608) is fixedly connected to the bottom surface of the sliding frame (602). The bottom of the moving frame (602) is provided with a first fixed plate (607), and a contact wheel (606) that contacts the bottom of the cold-drawn tube (8) is rotatably installed on the first fixed plate (607). The top of the sliding frame (602) is slidably connected with a sliding rod (604) in the vertical direction. A fourth spring (603) is provided on the sliding rod (604). One end of the fourth spring (603) is fixedly connected to the sliding frame (602), and the other end of the fourth spring (603) is connected to a fixed ring on the sliding rod (604). A welding gun (605) for welding the seam of the cold-drawn tube (8) is provided at the bottom of the sliding rod (604).

4. The forming apparatus for processing thin-walled titanium alloy tubes according to claim 3, characterized in that: The first support base (2) is provided with a second fixing plate (610) at its bottom. A third support rod (611) is provided between the third support plate (609) and the second fixing plate (610). The third support rod (611) is slidably connected to the first fixing plate (607) in the vertical direction.

5. The forming apparatus for processing thin-walled titanium alloy tubes according to claim 1, characterized in that, The tensioning mechanism is as follows: a fourth support frame (705) is provided at the outlet end of the pipe seam welding mechanism, a fourth support rod (707) is provided on the fourth support frame (705), two clamping plates (708) are slidably connected on the fourth support rod (707) in the horizontal direction, the pipe body (9) is clamped between the two clamping plates (708), a sixth spring (706) is provided on both sides of the fourth support rod (707), one end of each sixth spring (706) is fixedly connected to the fourth support frame (705), and the other end of each sixth spring (706) is fixedly connected to the clamping plate (708), and a third support seat (702) is provided on one side of the fourth support frame (705). A second transmission wheel (709) is rotatably mounted on one side of the third support base (702), and a first transmission wheel (703) is rotatably mounted on the other side of the third support base (702). A second motor (704) is provided on the third support base (702) to drive the first transmission wheel (703) to rotate. The second transmission wheel (709) is connected to the first transmission wheel (703) through a chain (701). The chain (701) is fixedly connected to the third connecting plate (711). The third connecting plate (711) is slidably connected to the guide rod (710) on the third support base (702) in the horizontal direction. A clamping assembly for clamping the tube body (9) is provided on the third connecting plate (711).

6. The forming apparatus for processing thin-walled titanium alloy tubes according to claim 5, characterized in that, The clamping assembly is as follows: a connecting cylinder (715) is provided on the third connecting plate (711), an electric cylinder (714) is provided on the connecting cylinder (715), the output end of the electric cylinder (714) is fixedly connected to the support plate (713), the support plate (713) is uniformly provided with second sliding rods (712) in the circumferential direction, and the connecting cylinder (715) is uniformly provided with multiple fourth fixing plates (721) and third fixing plates (719) in the circumferential direction. Each fourth fixing plate (721) is respectively machined with a fourth sliding hole (716), and each second... Each slide rod (712) is provided with a slider (723) that is slidably connected to the fourth slide hole (716). Each second slide rod (712) has two fourth connecting rods (718) rotatably installed at one end. Each of the two fourth connecting rods (718) has a third slide rod (722) at one end. Each third fixing plate (719) is machined with a fifth slide hole (720) that is slidably connected to the third slide rod (722). Each fourth connecting rod (718) has a clamping block (717) for clamping the tube body (9) at the other end.

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