Bending forming device and forming method for manufacturing marine titanium alloy elbow

Abstract

The invention discloses a bending forming device and method for manufacturing a marine titanium alloy elbow, and relates to the technical field of bending forming. The bending forming device comprises a T-shaped plate, a fixing rod is fixedly connected to the bottom of the side edge of the T-shaped plate, a sliding plate is fixedly connected to the bottom of the fixing rod, and the outer side of the fixing rod is sleeved with a compression spring; the two ends of the compression spring are fixedly connected with the sliding plate and the inner wall of the sliding groove correspondingly, a circular groove is formed in the middle of the T-shaped plate, and an elastic plate is fixedly connected to the outer side of the circular groove. According to the bending forming device and method for manufacturing the marine titanium alloy elbow, under the elastic action of a compression spring, a sliding plate drives a T-shaped plate to move in the direction of a pipe material through a fixing rod, so that the inner wall of a circular groove in the middle of the T-shaped plate is in close contact with the outer side of a limiting pipe, and therefore the limiting pipe is clamped; and meanwhile, the elastic plate arranged on the T-shaped plate makes contact with the pipe material arranged on the outer side of the limiting pipe in a sleeving mode, and the pipe material is limited through the elastic performance of the elastic plate.

Description

Technical Field

[0001] The invention relates to the technical field of bending and forming, in particular to a bending and forming device and a forming method for manufacturing a titanium alloy elbow for a ship. Background Art

[0002] Marine titanium alloy elbow is a kind of pipe fitting used in ship piping system. It is mainly used to change the direction of the pipeline so that the pipeline can be reasonably laid out in the limited space of the ship. Due to the complex operating environment of the ship, including seawater corrosion, high pressure and other factors, the elbow made of titanium alloy has good corrosion resistance and high strength, which can effectively ensure the safe and stable operation of the ship's piping system. For example, in the seawater cooling system of the ship, the titanium alloy elbow can guide the seawater to flow in the pipeline to avoid damage to the pipeline due to seawater corrosion.

[0003] In the process of bending marine titanium alloy elbows with existing equipment, under-bending or over-bending is prone to occur because the pipe material does not fit tightly against the equipment. In addition, it may also cause surface quality problems of the pipe material, resulting in surface damage such as scratches and pits, reducing the product qualification rate. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: According to one aspect of the present invention, a bending and forming device for manufacturing a marine titanium alloy elbow is provided, comprising:

[0005] A base, the top of the base is fixedly connected with a guide rod, the number of guide rods is multiple, and the multiple guide rods are located at the top corners of the base, the top of the guide rod is fixedly connected with a top plate, the top of the top plate is fixedly connected with a hydraulic cylinder, the output end of the hydraulic cylinder passes through the top plate, the output end of the hydraulic cylinder is fixedly connected with a slider, the slider is fixedly connected with a sliding sleeve near the inside of the guide rod, and the sliding sleeve is set on the outside of the guide rod;

[0006] A pressure assembly, the pressure assembly is fixedly installed at the bottom middle of the slider;

[0007] The fixing component is fixedly installed at the middle of the top of the base, and the fixing component and the pressure component are located on the same vertical plane;

[0008] The fixing assembly includes a fixing block, which is fixedly mounted at the middle of the top of the base, a through hole is provided on the outer side of the fixing block, the through hole passes through the fixing block, a slide groove is provided on the top of the fixing block, and the inside of the slide groove is slidably connected to the limit assembly;

[0009] The limiting assembly includes a T-shaped plate, a fixing rod is fixedly connected to the bottom of the side of the T-shaped plate, the fixing rod is located inside the slide groove, a sliding plate is fixedly connected to the bottom of the fixing rod, the sliding plate is slidably connected to the slide groove, a compression spring is sleeved on the outer side of the fixing rod, the two ends of the compression spring are respectively fixedly connected to the sliding plate and the inner wall of the slide groove, a circular groove is opened in the middle of the T-shaped plate, and a spring plate is fixedly connected to the outer side of the circular groove.

[0010] Preferably, there are two limit assemblies, which are symmetrically arranged on the fixed block, and the spring plate is located on opposite sides of the two limit assemblies. A fixing groove is opened on the inner wall of the through hole, and an adjusting member is slidably connected inside the fixing groove. The adjusting member and the limit assembly are located on the same vertical plane.

[0011] Preferably, the adjusting member comprises a round rod, which is slidably connected to the fixed block, the top of the round rod is fixedly connected to a trapezoidal block, the top of the trapezoidal block is rotatably connected to a roller, and the bottom of the trapezoidal block is fixedly connected to a return spring.

[0012] Preferably, an arc groove is provided in the middle of the fixed block, the arc groove runs through the fixed block, the arc groove is arranged perpendicular to the through hole, an arc plate is fixedly connected to the inside of the fixed block, a trapezoidal groove is provided on the inner wall of the arc plate, there are multiple trapezoidal grooves, the multiple trapezoidal grooves are evenly distributed on the arc plate, and an inclined groove is provided on the arc plate near the top of the fixed block.

[0013] Preferably, the base comprises a supporting block, the top of the supporting block is slidably connected to a moving plate, the middle of the top of the moving plate is fixedly connected to the fixed block, and a V-shaped groove is provided on the outer side of the moving plate.

[0014] Preferably, the support block is fixedly connected to a middle rod near the top of the V-shaped groove, a bent plate is fixedly connected to one side of the middle rod near the movable plate, and a limiting plate is fixedly connected to one side of the bent plate near the movable plate.

[0015] Preferably, the pressure assembly includes a semicircular block, an arc groove is opened in the middle of the semicircular block, a notch is opened on the side of the semicircular block, a slanted block is fixedly connected to the side of the notch close to the arc groove, a heat sink is fixedly connected to the top of the semicircular block, a connecting plate is fixedly connected to the top of the heat sink, and there are multiple heat sinks, which are evenly distributed on the connecting plate.

[0016] Preferably, the sliding sleeve comprises a circular ring, which is fixedly connected to the slider, a cylinder is fixedly connected to the side of the circular ring close to the slider, an intermediate ring is arranged on the side of the cylinder away from the circular ring, and an extension groove is arranged on the outer side of the intermediate ring.

[0017] Preferably, a square hole is opened on the outside of the cylinder, a connecting rod is fixedly connected to the inner wall of the square hole, an extension rod is fixedly connected to the middle of the connecting rod, one end of the extension rod away from the connecting rod is fixedly connected to the middle ring, and the extension rod is located inside the extension groove.

[0018] According to another aspect of the present invention, a bending forming method for manufacturing a marine titanium alloy elbow is provided, using the above-mentioned bending forming device for manufacturing a marine titanium alloy elbow, comprising the following steps:

[0019] S1. Fix the pipe material, place the limiting pipe and the pipe material to be processed which is sleeved on the outside inside the through hole, and the inner wall of the circular groove is in close contact with the outer side of the limiting pipe, so as to clamp the limiting pipe;

[0020] S2, pipe material loading, the moving plate slides on the supporting block, when the moving plate drives the pipe material to move to the middle, the moving plate stops moving, so that the pipe material is located directly below the pressure assembly;

[0021] S3, pipe bending, the hydraulic cylinder is connected to an external power supply to work, the hydraulic cylinder drives the slider to move downward, and the slider drives the semicircular block to move downward, thereby bending the pipe;

[0022] S4, the tube is formed, the semicircular block and the fixed block slide relative to each other until the semicircular block is located inside the arc groove, and the bending movement stops. At this time, the heat dissipation plate dissipates heat, which is convenient for tube forming.

[0023] The present invention provides a bending and forming device for producing a marine titanium alloy elbow. It has the following beneficial effects:

[0024] 1. The bending forming device made of the marine titanium alloy elbow, under the elastic force of the compression spring, the slide plate drives the T-shaped plate to move toward the pipe material through the fixed rod, so that the inner wall of the circular groove in the middle of the T-shaped plate is in close contact with the outer side of the limiting tube, thereby clamping the limiting tube.

[0025] 2. The bending and forming device made of the marine titanium alloy elbow contacts the pipe sleeved on the outside of the limiting tube through the spring plate arranged on the T-shaped plate, and limits the pipe by utilizing the elastic properties of the spring plate, so that the pipe is located in the middle of the limiting tube to avoid the displacement of the pipe. Therefore, during the bending and forming operation, the stress will be relatively evenly distributed from the bending point to both sides.

[0026] 3. The bending and forming device made of marine titanium alloy elbows converts sliding friction into rolling friction by setting rollers, so that during the stamping and bending process of the pipe, the pipe material will have a relative displacement tendency due to the force, which can greatly reduce the damage of friction to the surface of the pipe material, avoid scratches, roughness, etc., and better protect the appearance and performance of the pipe material.

[0027] Fourth, the bending forming device made of the marine titanium alloy elbow can disperse the concentrated bending force into multiple smaller forces through multiple trapezoidal grooves, acting on different positions of the pipe material, so that the pressure on the pipe material at each local position is relatively reduced, so as to better fit the curved plate, make the bending process smoother, and the deformation of the pipe material more uniform, thereby improving the quality of the elbow.

[0028] 5. The bending forming device made of the marine titanium alloy elbow utilizes the contact surface between the inclined block and the inclined groove so that the bending force can be decomposed into a component force perpendicular to the contact surface and a component force along the contact surface direction, which can reduce the initial punching force required for the equipment and extend the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to better understand the present disclosure, reference may be made to the embodiments shown in the following drawings. The components in the drawings are not necessarily to scale, and related elements may be omitted in order to emphasize and clearly illustrate the technical features of the present disclosure. In addition, related elements or components may have different arrangements as known in the art. In addition, in the drawings, the same reference numerals represent the same or similar components in each drawing. Among them:

[0030] Figure 1 This is a schematic diagram of the external structure of a bending and forming device for manufacturing a marine titanium alloy elbow according to the present invention;

[0031] Figure 2 It is a schematic diagram of the side view structure of the present invention;

[0032] Figure 3 It is a schematic diagram of the structure of a partial top view of the present invention;

[0033] Figure 4 It is a schematic diagram of the structure of the fixing assembly of the present invention;

[0034] Figure 5 It is a schematic diagram of the structure of the limit assembly of the present invention;

[0035] Figure 6 It is a schematic diagram of the structure of the adjusting member of the present invention;

[0036] Figure 7 It is a schematic diagram of the cross-sectional structure of the fixing assembly of the present invention;

[0037] Figure 8 It is a schematic diagram of the local structure of the base of the present invention;

[0038] Fig. 9 It is a schematic diagram of the structure of the pressure assembly of the present invention;

[0039] Fig.10 This is a schematic diagram of the structure of the sliding sleeve of the present invention;

[0040] Fig.11 It is a schematic diagram of the local structure of the sliding sleeve of the present invention;

[0041] Fig.12 This is a schematic diagram of the structure of the intermediate ring of the present invention;

[0042] Fig.13 It is a schematic diagram of the molding method of the present invention.

[0043] The following are the descriptions of the reference numerals:

[0044] 1. Base; 11. Support block; 12. Moving plate; 13. V-shaped groove; 14. Intermediate rod; 15. Bending plate; 16. Stop plate; 2. Guide rod; 3. Top plate; 4. Hydraulic cylinder; 5. Fixing assembly; 51. Fixing block; 52. Arc groove; 53. Through hole; 54. Fixing groove; 55. Adjusting member; 551. Round rod; 552. Return spring; 553. Trapezoidal block; 554. Roller; 56. Inclined groove; 57. Stopping assembly; 571. T-shaped plate; 572 , circular groove; 573, compression spring; 574, spring plate; 575, fixing rod; 576, slide plate; 58, trapezoidal groove; 59, slide groove; 510, arc plate; 6, slider; 7, pressure assembly; 71, semicircular block; 72, arc groove; 73, notch; 74, inclined block; 75, heat sink; 76, connecting plate; 8, sliding sleeve; 81, circular ring; 82, cylinder; 83, square hole; 84, connecting rod; 85, extension rod; 86, extension groove; 87, intermediate ring. DETAILED DESCRIPTION

[0045] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0046] like Figures 1 to 5 As shown, the present invention provides a technical solution: a bending and forming device for a marine titanium alloy elbow, comprising a base 1, a guide rod 2 is fixedly connected to the top of the base 1, the guide rod 2 is multiple in number, and the multiple guide rods 2 are located at the top corner of the base 1, a top plate 3 is fixedly connected to the top of the guide rod 2, a hydraulic cylinder 4 is fixedly connected to the top of the top plate 3, the output end of the hydraulic cylinder 4 passes through the top plate 3, the output end of the hydraulic cylinder 4 is fixedly connected to a slider 6, the slider 6 is fixedly connected to the inside of the guide rod 2 with a sliding sleeve 8, and the sliding sleeve 8 is sleeved on the outside of the guide rod 2;

[0047] A pressure assembly 7, the pressure assembly 7 is fixedly mounted at the middle of the bottom of the slider 6;

[0048] A fixing component 5, which is fixedly installed at the middle of the top of the base 1, and the fixing component 5 and the pressure component 7 are located on the same vertical plane;

[0049] The fixing assembly 5 includes a fixing block 51, which is fixedly mounted at the middle of the top of the base 1. A through hole 53 is formed on the outer side of the fixing block 51, and the through hole 53 penetrates the fixing block 51. A slide groove 59 is formed on the top of the fixing block 51, and the inside of the slide groove 59 is slidably connected to a limit assembly 57.

[0050] The limiting assembly 57 includes a T-shaped plate 571, a fixing rod 575 is fixedly connected to the bottom of the side of the T-shaped plate 571, the fixing rod 575 is located inside the slide groove 59, and a slide plate 576 is fixedly connected to the bottom of the fixing rod 575, so that the limiting tube and the tube material to be processed sleeved on the outside are placed inside the through hole 53. Under the elastic force of the compression spring 573, the slide plate 576 drives the T-shaped plate 571 to move toward the direction of the tube material through the fixing rod 575, so that the inner wall of the circular groove 572 in the middle of the T-shaped plate 571 is in close contact with the outer side of the limiting tube, thereby clamping the limiting tube, and at the same time, the spring plate 574 arranged on the T-shaped plate 571 contacts the tube material sleeved on the outer side of the limiting tube, and the elastic performance of the spring plate 574 is used to limit the tube material, so that the tube material is located in the middle of the limiting tube. The part is used to prevent the pipe material from deviating, so that during the bending forming operation, the stress will be relatively evenly distributed from the bending point to both sides. The slide plate 576 is slidably connected to the slide groove 59, and a compression spring 573 is sleeved on the outer side of the fixed rod 575. The two ends of the compression spring 573 are respectively fixedly connected to the inner wall of the slide plate 576 and the slide groove 59. A circular groove 572 is opened in the middle of the T-shaped plate 571, and a spring plate 574 is fixedly connected to the outer side of the circular groove 572. When the pipe material deviates, the side close to the bending force application point will first deform greatly during bending, resulting in stress concentration on this side, which is prone to local excessive deformation or even rupture. When the pipe material is located in the middle, the stress can be more evenly dispersed to the circumferential direction of the entire elbow, reducing the risk of excessive local stress and improving the forming quality of the elbow.

[0051] In one embodiment, see Figure 6 and Figure 7 As shown, there are two limit assemblies 57, which are symmetrically arranged on the fixed block 51, and the spring plate 574 is located on the opposite sides of the two limit assemblies 57. A fixing groove 54 is opened on the inner wall of the through hole 53, and an adjusting member 55 is slidably connected inside the fixing groove 54. The adjusting member 55 and the limit assemblies 57 are located on the same vertical plane.

[0052] The adjusting member 55 includes a round rod 551, which is slidably connected to the fixed block 51. A trapezoidal block 553 is fixedly connected to the top of the round rod 551. After the pipe is placed, the hydraulic cylinder 4 is connected to an external power supply to work, and the hydraulic cylinder 4 drives the slider 6 to move downward on the guide rod 2, so as to bend the pipe. During the bending process, the roller 554 is forced to drive the trapezoidal block 553 and the round rod 551 to move downward, so that when an impact force is generated between the pressure component 7 and the workpiece, the elastic performance of the reset spring 552 can be used. The reset spring 552 will be elastically deformed under the action of the impact force, absorbing part of the energy, so as to play a role in buffering and shock absorption. , reducing the damage of impact force to workpieces and equipment, avoiding damage of workpieces due to excessive impact force, and reducing wear and damage of equipment caused by frequent impact, extending the service life of equipment, and reducing equipment maintenance costs. The top of the trapezoidal block 553 is rotatably connected with a roller 554. By setting the roller 554, the sliding friction is converted into rolling friction, so that during the stamping and bending process of the pipe material, the pipe material has a tendency of relative displacement due to the force, which can greatly reduce the damage of friction force to the surface of the pipe material, avoid scratches, roughness, etc., and better protect the appearance and performance of the pipe material. The bottom of the trapezoidal block 553 is fixedly connected with a return spring 552.

[0053] An arc groove 52 is provided in the middle of the fixing block 51, and the arc groove 52 passes through the fixing block 51. The arc groove 52 is perpendicular to the through hole 53. An arc plate 510 is fixedly connected to the inside of the fixing block 51. A trapezoidal groove 58 is provided on the inner wall of the arc plate 510. The multiple trapezoidal grooves 58 can disperse the concentrated bending force into multiple smaller forces, which act on different positions of the pipe material, so that the pressure on the pipe material at each local position is relatively reduced, so that the arc plate 510 can be better fitted, the bending process can be smoother, and the deformation of the pipe material can be more uniform, thereby improving the quality of the elbow. There are multiple trapezoidal grooves 58, and the multiple trapezoidal grooves 58 are evenly distributed on the arc plate 510. The arc plate 510 is provided with an inclined groove 56 near the top of the fixing block 51.

[0054] In one embodiment, see Figure 8 and Fig. 9As shown, the base 1 includes a support block 11, and a movable plate 12 is slidably connected to the top of the support block 11, and the middle of the top of the movable plate 12 is fixedly connected to the fixed block 51, and a V-shaped groove 13 is provided on the outer side of the movable plate 12. The movable plate 12 slides on the support block 11 to facilitate the loading of the pipe material. When the movable plate 12 drives the top fixed assembly 5 to move to the middle, under the elastic force of the bent plate 15, the limit plate 16 moves toward the side close to the movable plate 12. At this time, the protrusion in the middle of the limit plate 16 is located inside the V-shaped groove 13. At this time, the movable plate 12 stops moving, so that the fixed assembly 5 is located directly below the pressure assembly 7, which can ensure the accuracy of the stamping operation. The support block 11 is fixedly connected to an intermediate rod 14 near the top of the V-shaped groove 13, and the intermediate rod 14 is fixedly connected to a bent plate 15 on one side close to the movable plate 12. The bent plate 15 is elastic, and the bent plate 15 is fixedly connected to the limiting plate 16 on one side close to the movable plate 12, and a protrusion is provided in the middle of the limiting plate 16.

[0055] The pressure assembly 7 includes a semicircular block 71, an arc groove 72 is provided in the middle of the semicircular block 71, a notch 73 is provided on the side of the semicircular block 71, and a slanted block 74 is fixedly connected to the side of the notch 73 close to the arc groove 72. When the hydraulic cylinder 4 is connected to an external power supply, the hydraulic cylinder 4 drives the slider 6 to move downward, and the slider 6 drives the semicircular block 71 to move downward, so that the notch 73 and the fixed block 51 slide relative to each other until the semicircular block 71 is located inside the arc groove 52 and stops bending and moving. At the same time, the slanted block 74 slides with the slanted groove 56, and the slanted block 74 and the fixed block 51 are used to move relative to each other. The contact surface between the inclined grooves 56 allows the bending force to be decomposed into a component force perpendicular to the contact surface and a component force along the contact surface direction, which can reduce the initial punching force required for the equipment and extend the service life of the equipment. The top of the semicircular block 71 is fixedly connected to a heat sink 75. By setting the heat sink 75, the cooling time of the pipe material is reduced, the forming of the pipe material is accelerated, and the work efficiency is improved. The top of the heat sink 75 is fixedly connected to a connecting plate 76. There are multiple heat sinks 75, and the multiple heat sinks 75 are evenly distributed on the connecting plate 76.

[0056] In one embodiment, see Figures 10 to 12As shown, the sleeve 8 includes a ring 81, the ring 81 is fixedly connected to the slider 6, a cylinder 82 is fixedly connected to the side of the ring 81 close to the slider 6, the contact surface of the cylinder 82 and the intermediate ring 87 is inclined, and an intermediate ring 87 is provided on the side of the cylinder 82 away from the ring 81, and an extension groove 86 is provided on the outer side of the intermediate ring 87. The hydraulic cylinder 4 drives the slider 6 to slide downward, and the slider 6 drives the cylinder 82 to move. The cylinder 82 at the bottom is subjected to a reaction force, so that the cylinder 82 generates an extrusion force on the intermediate ring 87, and the intermediate ring 87 is forced to move in a direction away from the guide rod 2, and at the same time When the connecting rod 84 is deformed by force, the contact area between the intermediate ring 87 and the guide rod 2 is reduced, so that the friction between the sliding sleeve 8 and the guide rod 2 is reduced, thereby extending the service life of the sliding sleeve 8 and the guide rod 2. A square hole 83 is opened on the outer side of the cylinder 82, and the inner wall of the square hole 83 is fixedly connected with a connecting rod 84. The middle part of the connecting rod 84 is trapezoidal, and the connecting rod 84 is elastic. An extension rod 85 is fixedly connected to the middle part of the connecting rod 84, and the end of the extension rod 85 away from the connecting rod 84 is fixedly connected to the intermediate ring 87, and the extension rod 85 is located inside the extension groove 86.

[0057] like Fig.13 As shown, the present invention also provides a bending forming method for manufacturing a marine titanium alloy elbow, using the above-mentioned bending forming device for manufacturing a marine titanium alloy elbow, comprising the following steps:

[0058] S1. Fix the pipe material, place the limiting pipe and the pipe material to be processed which is sleeved on the outside inside the through hole 53, and the inner wall of the circular groove 572 is in close contact with the outer side of the limiting pipe, so as to clamp the limiting pipe;

[0059] S2, the pipe material is loaded, the movable plate 12 slides on the support block 11, and when the movable plate 12 drives the pipe material to move to the middle, the movable plate 12 stops moving, so that the pipe material is located directly below the pressure assembly 7;

[0060] S3, pipe bending, the hydraulic cylinder 4 is connected to an external power supply to work, the hydraulic cylinder 4 drives the slider 6 to move downward, and the slider 6 drives the semicircular block 71 to move downward, thereby bending the pipe;

[0061] S4, the tube is formed, the semicircular block 71 slides relatively with the fixed block 51 until the semicircular block 71 is located inside the arc groove 52, and the bending movement stops. At this time, the heat dissipation plate 75 dissipates heat, which facilitates the tube forming.

[0062] When in use, the limiting tube and the tube to be processed which is sleeved on the outside are placed inside the through hole 53. Under the elastic force of the compression spring 573, the slide plate 576 drives the T-shaped plate 571 to move toward the direction of the tube through the fixing rod 575, so that the inner wall of the circular groove 572 in the middle of the T-shaped plate 571 is in close contact with the outside of the limiting tube, thereby clamping the limiting tube. At the same time, the spring plate 574 arranged on the T-shaped plate 571 contacts the tube sleeved on the outside of the limiting tube, and the elastic performance of the spring plate 574 is used to limit the tube so that the tube is located in the middle of the limiting tube.

[0063] After the pipe is placed, the movable plate 12 slides on the support block 11 to facilitate the loading of the pipe. When the movable plate 12 drives the top fixed component 5 to move to the middle, under the elastic force of the bending plate 15, the limit plate 16 moves toward the side close to the movable plate 12. At this time, the protrusion in the middle of the limit plate 16 is located inside the V-shaped groove 13. At this time, the movable plate 12 stops moving, so that the fixed component 5 is located directly below the pressure component 7. The hydraulic cylinder 4 is connected to an external power supply to work, and the hydraulic cylinder 4 drives the slider 6 to move downward. The slider 6 drives the semicircular block 71 to move downward, so that the notch 73 and the fixed block 51 slide relative to each other until the semicircular block 71 is located inside the arc groove 52 and the bending movement stops.

[0064] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A bending and forming device for producing marine titanium alloy elbows, characterized in that: include: A base (1), wherein a guide rod (2) is fixedly connected to the top of the base (1), the guide rod (2) is provided in plurality, the plurality of guide rods (2) being located at the top corners of the base (1), the top of the guide rod (2) is fixedly connected to a top plate (3), the top of the top plate (3) is fixedly connected to a hydraulic cylinder (4), the output end of the hydraulic cylinder (4) passes through the top plate (3), the output end of the hydraulic cylinder (4) is fixedly connected to a slider (6), the slider (6) is fixedly connected to a sliding sleeve (8) near the inside of the guide rod (2), and the sliding sleeve (8) is sleeved on the outside of the guide rod (2); A pressure assembly (7), wherein the pressure assembly (7) is fixedly mounted at the middle of the bottom of the slider (6); A fixing assembly (5), wherein the fixing assembly (5) is fixedly mounted at the middle of the top of the base (1), and the fixing assembly (5) and the pressure assembly (7) are located on the same vertical plane; The fixing assembly (5) comprises a fixing block (51), the fixing block (51) is fixedly mounted at the middle of the top of the base (1), a through hole (53) is provided on the outer side of the fixing block (51), the through hole (53) passes through the fixing block (51), a sliding groove (59) is provided on the top of the fixing block (51), and the interior of the sliding groove (59) is slidably connected to a limiting assembly (57); The limiting assembly (57) comprises a T-shaped plate (571), the bottom of the side of the T-shaped plate (571) is fixedly connected to a fixing rod (575), the fixing rod (575) is located inside the slide groove (59), the bottom of the fixing rod (575) is fixedly connected to a slide plate (576), the slide plate (576) is slidably connected to the slide groove (59), a compression spring (573) is sleeved on the outer side of the fixing rod (575), the two ends of the compression spring (573) are respectively fixedly connected to the slide plate (576) and the inner wall of the slide groove (59), a circular groove (572) is opened in the middle of the T-shaped plate (571), and a spring plate (574) is fixedly connected to the outer side of the circular groove (572).

2. The bending and forming device for manufacturing a titanium alloy elbow for ship according to claim 1, characterized in that: There are two limit assemblies (57), and the two limit assemblies (57) are symmetrically arranged on the fixed block (51). The spring plate (574) is located on opposite sides of the two limit assemblies (57). The inner wall of the through hole (53) is provided with a fixing groove (54), and the interior of the fixing groove (54) is slidably connected with an adjusting member (55), and the adjusting member (55) and the limit assemblies (57) are located on the same vertical plane.

3. The bending and forming device for manufacturing a titanium alloy elbow for ship according to claim 2, characterized in that: The adjusting member (55) comprises a round rod (551) which is slidably connected to the fixed block (51); a trapezoidal block (553) is fixedly connected to the top of the round rod (551); a roller (554) is rotatably connected to the top of the trapezoidal block (553); and a return spring (552) is fixedly connected to the bottom of the trapezoidal block (553).

4. The bending and forming device for manufacturing a marine titanium alloy elbow according to claim 3 is characterized in that: An arc groove (52) is provided in the middle of the fixing block (51), the arc groove (52) penetrates the fixing block (51), and the arc groove (52) is arranged perpendicular to the through hole (53). An arc plate (510) is fixedly connected inside the fixing block (51), and a trapezoidal groove (58) is provided on the inner wall of the arc plate (510). There are a plurality of trapezoidal grooves (58), and the plurality of trapezoidal grooves (58) are evenly distributed on the arc plate (510). An inclined groove (56) is provided on the top of the arc plate (510) near the fixing block (51).

5. The bending and forming device for manufacturing a marine titanium alloy elbow according to claim 1, characterized in that: The base (1) comprises a support block (11), the top of the support block (11) is slidably connected to a movable plate (12), the middle of the top of the movable plate (12) is fixedly connected to the fixed block (51), and a V-shaped groove (13) is provided on the outer side of the movable plate (12).

6. The bending and forming device for manufacturing a titanium alloy elbow for ship according to claim 5, characterized in that: The support block (11) is fixedly connected to an intermediate rod (14) at the top close to the V-shaped groove (13); the intermediate rod (14) is fixedly connected to a bent plate (15) at one side close to the movable plate (12); and the bent plate (15) is fixedly connected to a limiting plate (16) at one side close to the movable plate (12).

7. The bending and forming device for manufacturing a titanium alloy elbow for ship according to claim 1, characterized in that: The pressure assembly (7) comprises a semicircular block (71), an arc-shaped groove (72) is provided in the middle of the semicircular block (71), a notch (73) is provided on the side of the semicircular block (71), a slanted block (74) is fixedly connected to the side of the notch (73) close to the arc-shaped groove (72), a heat sink (75) is fixedly connected to the top of the semicircular block (71), a connecting plate (76) is fixedly connected to the top of the heat sink (75), and the number of the heat sinks (75) is multiple, and the multiple heat sinks (75) are evenly distributed on the connecting plate (76).

8. The bending and forming device for manufacturing a titanium alloy elbow for ship according to claim 1, characterized in that: The sliding sleeve (8) comprises a circular ring (81), wherein the circular ring (81) is fixedly connected to the slider (6), a side of the circular ring (81) close to the slider (6) is fixedly connected to a cylinder (82), a side of the cylinder (82) away from the circular ring (81) is provided with an intermediate ring (87), and an extension groove (86) is provided on the outer side of the intermediate ring (87).

9. The bending and forming device for manufacturing a titanium alloy elbow for ship according to claim 8, characterized in that: A square hole (83) is provided on the outer side of the cylinder (82); a connecting rod (84) is fixedly connected to the inner wall of the square hole (83); an extension rod (85) is fixedly connected to the middle of the connecting rod (84); one end of the extension rod (85) away from the connecting rod (84) is fixedly connected to the intermediate ring (87); and the extension rod (85) is located inside the extension groove (86).

10. A bending forming method for manufacturing a marine titanium alloy elbow, characterized in that: The bending and forming device made of a marine titanium alloy elbow according to any one of claims 1 to 9 comprises the following steps: S1, the pipe material is fixed, the limiting pipe and the pipe material to be processed which is sleeved on the outside are placed inside the through hole (53), and the inner wall of the circular groove (572) is in close contact with the outer side of the limiting pipe, so as to clamp the limiting pipe; S2, the pipe material is loaded, the movable plate (12) slides on the support block (11), and when the movable plate (12) drives the pipe material to move to the middle, the movable plate (12) stops moving, so that the pipe material is located directly below the pressure assembly (7); S3, bending the pipe material, the hydraulic cylinder (4) is connected to an external power source to work, the hydraulic cylinder (4) drives the slider (6) to move downward, and the slider (6) drives the semicircular block (71) to move downward, thereby bending the pipe material; S4, tube material forming, the semicircular block (71) and the fixed block (51) slide relative to each other until the semicircular block (71) is located inside the arc groove (52), and the bending movement stops. At this time, the heat dissipation plate (75) dissipates heat, which facilitates the tube material forming.

Images