High-toughness stainless steel seamless pipe drawing equipment and processing technology thereof

Abstract

The application discloses a high-toughness stainless steel seamless pipe drawing equipment and a processing technology thereof, and comprises a supporting seat, wherein: two ends of the supporting seat are respectively fixedly provided with a base one and a base two, the base one and the base two are arranged in mirror image positions with the supporting seat as the center, and each of the base one and the base two is fixedly provided with a feeding table, the whole is provided, reciprocating circulation of the corresponding front die and the rear die through the hydraulic cylinder one and the hydraulic cylinder two is matched to draw the high-toughness stainless steel seamless pipe, so that the whole is more efficient, convenient and flexible.

Description

Technical Field

[0001] This invention relates to the field of stainless steel seamless pipe processing technology, specifically to a high-toughness stainless steel seamless pipe drawing equipment and its processing technology. Background Technology

[0002] Stainless steel seamless pipe is a long strip of steel with a hollow cross-section and no seams around its perimeter. The thicker the wall, the more economical and practical it is; the thinner the wall, the higher its processing cost.

[0003] The manufacturing process of this product determines its limitations. Generally, seamless steel pipes have low precision: uneven wall thickness, low gloss on the inner and outer surfaces, high cost for fixed lengths, and pitting and black spots on the inner and outer surfaces that are difficult to remove; its inspection and shaping must be done offline. Therefore, it demonstrates its superiority in high-pressure, high-strength, and mechanical structural materials.

[0004] However, existing high-toughness stainless steel seamless pipe drawing equipment cannot feed materials when the stainless steel seamless steel is pushed into the drawing die by the mandrel after the stainless steel seamless steel is drawn and the mandrel is reset. Feeding can only be carried out after the mandrel is completely reset. This wastes a lot of time and affects the processing efficiency.

[0005] Therefore, it is essential to invent a high-toughness stainless steel seamless pipe drawing equipment and its processing technology. Summary of the Invention

[0006] The purpose of this invention is to provide a high-toughness stainless steel seamless pipe drawing equipment and its processing technology, in order to solve the problem that existing high-toughness stainless steel seamless pipe drawing equipment cannot feed materials when the stainless steel seamless steel is pushed into the drawing die by a mandrel after the stainless steel seamless steel is drawn and the mandrel is reset. Feeding can only be carried out after the mandrel is completely reset, which wastes a lot of time and affects the processing efficiency.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-toughness stainless steel seamless pipe drawing device: including a support base, wherein: a base one and a base two are fixedly installed at both ends of the support base respectively, the base one and the base two are arranged in a mirror position with the support base as the center, and a feeding platform is fixedly installed on each of the base one and the base two.

[0008] Preferably, a front drawing die table is fixedly installed at the front end of the support base, and a rear drawing die table is fixedly installed at the rear end of the support base.

[0009] Preferably, a hydraulic cylinder is fixedly installed on the loading platform of the first base, and the output end of the hydraulic cylinder slides out from the front drawing die table. A hydraulic cylinder is fixedly installed on the loading platform of the second base, and the output end of the hydraulic cylinder slides out from the rear drawing die table. The hydraulic cylinders are arranged in a mirror position with the support base as the center.

[0010] Preferably, the output ends of hydraulic cylinder one and hydraulic cylinder two are jointly fixedly mounted with a pulling carriage, the pulling carriage is slidably connected to the support base, and the pulling carriage is located between the front pulling die table and the rear pulling die table;

[0011] Preferably, the pulling trolley has two mounting ports on its front and rear sides, and each mounting port is fixedly installed with a hydraulic gripper.

[0012] Preferably, the support base includes a trapezoidal guide platform, and a linear guide rail is fixedly installed on the top surface of the trapezoidal guide platform. Several weight-reducing grooves are evenly distributed on the inclined surfaces on both sides of the trapezoidal guide platform. A baffle is fixedly installed at both ends of the inclined surfaces on both sides of the trapezoidal guide platform. The drawing trolley is slidably connected to the linear guide rail. The front drawing die platform and the rear drawing die platform are fixedly installed on both sides of the top of the trapezoidal guide platform, and the front drawing die platform and the rear drawing die platform are arranged in a mirror position with the trapezoidal guide platform as the center.

[0013] Preferably, the loading platform includes a platform and a T-shaped platform, and a support plate is fixedly installed on the bottom surface of the platform, which is fixedly installed on the corresponding base one and base two; the upper surface of the platform has two loading cavities and one mounting cavity, and the two loading cavities are located on both sides of the mounting cavity, and the two loading cavities are arranged in a mirror position with the mounting cavity as the center; a fixing ring is fixedly installed at one end of the platform, and the fixing ring is located in the mounting cavity; the T-shaped platform is fixedly installed on the corresponding base one and base two, and two mounting holes are evenly distributed through the horizontal plate of the T-shaped platform, and a hydraulic cylinder two is fixedly installed in each mounting hole of the T-shaped platform; a core die head is fixedly installed at the output end of the hydraulic cylinder two, and the core die head is slidably connected to the corresponding loading cavity, and the core die head is coaxial with the corresponding loading cavity; the hydraulic cylinder one and hydraulic cylinder two are fixedly installed in the corresponding mounting cavity by the fixing ring; one end of the platform is in contact with the corresponding front drawing die platform and rear drawing die platform.

[0014] Preferably, the surface of the front drawing die table is provided with a front limiting hole and two front die holes, and the two front die holes are located on both sides of the front limiting hole. The two front die holes are arranged in a mirror position with the front limiting hole as the center. A front die is fixedly installed in each of the two front die holes of the front drawing die table, and the front die is coaxial with the corresponding feeding cavity. The output end of the first hydraulic cylinder slides out from the front limiting hole.

[0015] Preferably, the surface of the rear drawing die table is provided with a rear limiting hole and two rear die holes, and the two rear die holes are located on both sides of the rear limiting hole, and the two rear die holes are arranged in a mirror position with the rear limiting hole as the center; a rear die is fixedly installed in each of the two rear die holes of the rear drawing die table, and the rear die is coaxial with the corresponding feeding cavity; a cable conduit is fixedly installed on the top of the rear drawing die table; the output end of the second hydraulic cylinder slides out from the rear limiting hole; the rear limiting hole corresponds to the position of the front limiting hole.

[0016] Preferably, the bottom of the pulling trolley has a limiting groove, and a connecting platform is fixedly installed on the front and rear sides of the pulling trolley. A control box for controlling the hydraulic grippers is fixedly installed on the upper part of the pulling trolley. The control box has a wiring hole, and the control wires for controlling the hydraulic grippers pass through the wiring hole and the wiring tube. The pulling trolley is clamped on the linear guide rail through the limiting groove, and the limiting groove is slidably connected to the linear guide rail. The pulling trolley is fixedly connected to the output ends of the corresponding hydraulic cylinder one and hydraulic cylinder two through the connecting platform.

[0017] This invention also proposes a high-toughness stainless steel seamless pipe drawing process, including the following steps:

[0018] Initial state: Hydraulic cylinder 2 is in the retracted state, hydraulic cylinder 1 is in the extended state, hydraulic cylinder 2 is in the retracted state, and the pulling carriage is on one side of the rear pulling mold table.

[0019] S1: Place the high-toughness stainless steel seamless pipes that need to be drawn into the corresponding feeding chambers;

[0020] S2: First, the hydraulic cylinder two on the base two drives the corresponding core mold head to extend into the corresponding high-toughness stainless steel seamless steel pipe until one end of the high-toughness stainless steel seamless steel pipe is pushed into the corresponding rear mold and extends out from the rear mold.

[0021] S3: Allow the hydraulic grippers on the side of the back mold of the pulling carriage to clamp the corresponding high-toughness stainless steel seamless pipe.

[0022] S4: Then, retract hydraulic cylinder one. At the same time as hydraulic cylinder one retracts, expand hydraulic cylinder two until the high-toughness stainless steel seamless steel pipe is pulled out from the corresponding rear mold, and at the same time, reset the corresponding hydraulic cylinder two.

[0023] S5: After the high-toughness stainless steel seamless pipe is pulled out from the corresponding rear mold, the pulling carriage is located on one side of the front pulling mold table. Then, the hydraulic jaws of the pulling carriage release the high-toughness stainless steel seamless pipe. At this time, the high-toughness stainless steel seamless pipe will be guided to both sides of the support seat through the trapezoidal guide table.

[0024] S6: At this time, the hydraulic cylinder 2 on the base 1 drives the corresponding core mold head to extend into the corresponding high-toughness stainless steel seamless steel pipe until one end of the high-toughness stainless steel seamless steel pipe is pushed into the corresponding front mold and extends out from the front mold.

[0025] S7: Then let the drawing carriage approach the hydraulic gripper on the side of the front drawing die table to clamp the high-toughness stainless steel seamless pipe extending from the front die.

[0026] S8: Reset hydraulic cylinder two. At the same time as resetting hydraulic cylinder two, hydraulic cylinder one unfolds until the high toughness stainless steel seamless steel pipe is pulled out from the front mold. During the process of pulling the high toughness stainless steel seamless steel pipe out from the front mold, the high toughness stainless steel seamless steel pipe to be pulled out is placed in advance in the feeding cavity of the feeding platform on the base two.

[0027] S9: After the high-toughness stainless steel seamless pipe is pulled out from the front mold, the pulling carriage is located on one side of the rear pulling mold table. Then, the hydraulic jaws of the pulling carriage release the high-toughness stainless steel seamless pipe. At this time, the high-toughness stainless steel seamless pipe will be guided to both sides of the support seat through the trapezoidal guide table.

[0028] S10: Finally, the high-toughness stainless steel seamless pipe is drawn by hydraulic cylinder one and hydraulic cylinder two in conjunction with the corresponding front and rear dies, repeating the above process.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] This invention, through its overall design, enables the drawing trolley driven by hydraulic cylinder two to work in conjunction with the loading platform on base two and the rear drawing die to draw high-toughness stainless steel seamless pipes. While hydraulic cylinder two is operating, the high-toughness stainless steel seamless pipe to be drawn is placed on the loading platform on base one in advance. After hydraulic cylinder two draws the high-toughness stainless steel seamless pipe, hydraulic cylinder one can quickly drive the drawing trolley to work in conjunction with the loading platform on base one and the rear drawing die to draw the high-toughness stainless steel seamless pipe. While hydraulic cylinder one is operating, the high-toughness stainless steel seamless pipe to be drawn is placed on the loading platform on base two in advance. After hydraulic cylinder one completes the drawing of the high-toughness stainless steel seamless pipe, hydraulic cylinder two can quickly continue drawing the high-toughness stainless steel seamless pipe. This process is repeated cyclically to draw the high-toughness stainless steel seamless pipe, making the overall process more efficient, convenient, and flexible. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0032] Figure 2This is a schematic diagram of the support base, front drawing die table, and rear drawing die table of the present invention.

[0033] Figure 3 This is a schematic diagram of the loading platform structure of the present invention.

[0034] Figure 4 This is a schematic diagram of the pulling carriage structure of the present invention.

[0035] Figure 5 This is a partially enlarged structural diagram of point A in this invention.

[0036] Figure 6 This is a partially enlarged structural diagram of point B in the present invention.

[0037] In the picture:

[0038] Support base 1, trapezoidal guide platform 11, linear guide rail 12, weight reduction groove 13, baffle 14, base one 2, base two 3, loading platform 4, platform plate 41, support plate 42, loading cavity 43, mounting cavity 44, fixing ring 45, T-shaped platform 46, hydraulic cylinder two 47, core mold head 48, front drawing mold platform 5, front limit hole 51, front mold 52, rear drawing mold platform 6, rear limit hole 61, rear mold 62, cable routing pipe 63, hydraulic cylinder one 7, hydraulic cylinder two 8, drawing trolley 9, limit groove 91, mounting port 92, connecting platform 93, control box 94, control wiring harness 95. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Implementation of List 1:

[0041] As attached Figure 1-6 As shown

[0042] The present invention provides a high-toughness stainless steel seamless pipe drawing device, including a support base 1, wherein: a base 1 2 and a base 2 3 are fixedly installed at both ends of the support base 1 respectively, and the base 1 2 and the base 2 3 are arranged in a mirror position with the support base 1 as the center. The arrangement of the base 1 2 and the base 2 3 can ensure the stability between the loading platform 4 and the support base 1. The loading platform 4 is fixedly installed on each of the base 1 2 and the base 2 3. The arrangement of the loading platform 4 facilitates the placement of the high-toughness stainless steel seamless pipe to be drawn.

[0043] Specific references Figure 1 and Figure 2The front drawing die table 5 is fixedly installed at the front end of the support base 1, and the rear drawing die table 6 is fixedly installed at the rear end of the support base 1. The stability of the front drawing die table 5 and the rear drawing die table 6 can be guaranteed by the setting of the support base 1.

[0044] Specific references Figure 1 A hydraulic cylinder 7 is fixedly installed on the loading platform 4 on the base 1 2. The output end of the hydraulic cylinder 7 slides out from the front drawing die 5. The hydraulic cylinder 7 can work with the rear drawing die 6 to draw the high-toughness stainless steel seamless pipe. A hydraulic cylinder 8 is fixedly installed on the loading platform 4 on the base 2 3. The output end of the hydraulic cylinder 8 slides out from the rear drawing die 6. The hydraulic cylinder 8 can work with the front drawing die 5 to draw the high-toughness stainless steel seamless pipe. The hydraulic cylinders 1 7 and 2 8 are positioned in a mirror image with the support base 1 as the center.

[0045] It should be noted that hydraulic cylinder 7 and hydraulic cylinder 8 are connected to an external hydraulic pump station;

[0046] Specific references Figure 1 The output ends of hydraulic cylinder 7 and hydraulic cylinder 8 are fixedly mounted on a drawing carriage 9. The drawing carriage 9 is slidably connected to the support base 1 and is located between the front drawing die table 5 and the rear drawing die table 6. Through the setting of hydraulic cylinder 7 and hydraulic cylinder 8, the drawing carriage 9 can be reciprocated to slide between the front drawing die table 5 and the rear drawing die table 6.

[0047] Specific references Figure 4 The drawing carriage 9 has two mounting ports 92 on its front and rear sides. The mounting ports 92 provide mounting space for the hydraulic grippers. Each mounting port 92 is fixedly installed with a hydraulic gripper. The hydraulic grippers adopt existing technology, such as the hydraulic grippers on the hydraulic cold drawing machine in the prior art, so they will not be described in detail here.

[0048] Specific references Figure 2The support base 1 includes a trapezoidal guide platform 11. Through the trapezoidal guide platform 11, after the high-toughness stainless steel seamless pipe is drawn by hydraulic cylinders 7 and 8 in conjunction with the front drawing die 5 and the rear drawing die 6, the drawn high-toughness stainless steel seamless pipe can be guided to both sides of the support base 1. A linear guide rail 12 is fixedly installed on the top surface of the trapezoidal guide platform 11. Through the linear guide rail 12 and the setting of the limiting groove 91, the drawing carriage 9 can be positioned, ensuring the stability and smoothness of the drawing carriage 9 during its sliding process. The trapezoidal guide platform 11 has several weight-reducing grooves 13 evenly distributed on both sides of its inclined surface; baffles 14 are fixedly installed at both ends of the inclined surfaces on both sides of the trapezoidal guide platform 11, which can restrict the rolling direction of the high-toughness stainless steel seamless pipe; the drawing trolley 9 is slidably connected to the linear guide rail 12; the front drawing die platform 5 and the rear drawing die platform 6 are fixedly installed on both sides of the top of the trapezoidal guide platform 11, and the front drawing die platform 5 and the rear drawing die platform 6 are set in a mirror position with the trapezoidal guide platform 11 as the center;

[0049] It should be noted that the length of the trapezoidal guide table 11 and the linear guide rail 12 is greater than the length of the table plate 41. In other words, when drawing high-toughness stainless steel seamless pipes, the length of the high-toughness stainless steel seamless pipes needs to be less than the length of the trapezoidal guide table 11 and the linear guide rail 12.

[0050] Specific references Figure 3The loading platform 4 includes a platform 41 and a T-shaped platform 46. A support plate 42 is fixedly installed on the bottom surface of the platform 41, and the support plate 42 is fixedly installed on the corresponding base 2 and base 3. The upper surface of the platform 41 has two loading cavities 43 and one mounting cavity 44. The loading cavities 43 can hold high-toughness stainless steel seamless pipes that need to be drawn, and the two loading cavities 43 are located on both sides of the mounting cavity 44. The mounting cavity 44 can support the corresponding hydraulic cylinders 7 and 8. The two loading cavities 43 are arranged in a mirror position with the mounting cavity 44 as the center. A fixing ring 45 is fixedly installed at one end of the platform 41. The fixing ring 45 can ensure the stability of the hydraulic cylinders 7 and 8 in the corresponding mounting cavity 44, and the fixing ring 45 is located in the mounting cavity 44. The T-shaped platform 46 is fixed. The T-shaped platform 46 is mounted on the corresponding base 1 2 and base 2 3, and two mounting holes are evenly distributed through the horizontal plate. A hydraulic cylinder 2 47 is fixedly installed in each mounting hole of the T-shaped platform 46. The hydraulic cylinder 2 47 drives the corresponding mandrel head 48 to penetrate into the high-toughness stainless steel seamless pipe in the corresponding feeding cavity 43, and drives one end of the high-toughness stainless steel seamless pipe pressure head to exit from the corresponding front mold 52 and rear mold 62. The output end of the hydraulic cylinder 2 47 is fixedly mounted with the mandrel head 48 via threads, and the mandrel head 48 is slidably connected to the corresponding feeding cavity 43. The mandrel head 48 and the corresponding feeding cavity 43 are coaxial. Hydraulic cylinder 1 7 and hydraulic cylinder 2 8 are fixedly installed in the corresponding mounting cavity 44 via a fixing ring 45. One end of the platform 41 contacts the corresponding front drawing mold platform 5 and rear drawing mold platform 6.

[0051] It should be noted that hydraulic cylinder 247 is connected to an external hydraulic pump station.

[0052] Specific references Figure 2 The front drawing die table 5 has a front limiting hole 51 and two front die holes through its surface. The front limiting hole 51 facilitates the assembly and disassembly of the front drawing die table 5 and the hydraulic cylinder 7. The two front die holes are located on both sides of the front limiting hole 51, which facilitates the assembly and disassembly of the front die 52. The two front die holes are positioned in a mirror image with the front limiting hole 51 as the center. The front die 52 is fixedly installed in each of the two front die holes of the front drawing die table 5 by bolts, and the front die 52 is coaxial with the corresponding feeding cavity 43. The output end of the hydraulic cylinder 7 slides out from the front limiting hole 51.

[0053] It should be noted that several threaded holes are evenly distributed around the front die hole of the front drawing die table 5, and several countersunk holes are evenly distributed on the front die 52. The positions of the countersunk holes correspond to the positions of the threaded holes, and bolts are fixedly installed between the countersunk holes and the corresponding threaded holes.

[0054] Specific references Figure 2 and Figure 5 The surface of the rear drawing die table 6 is provided with a rear limiting hole 61 and two rear die holes. The rear limiting hole 61 facilitates the assembly and disassembly of the rear drawing die table 6 and the hydraulic cylinder 8. The two rear die holes are located on both sides of the rear limiting hole 61, facilitating the assembly and disassembly of the rear die 62. The two rear die holes are positioned in a mirror image with the rear limiting hole 61 as the center. A rear die 62 is fixedly installed in each of the two rear die holes of the rear drawing die table 6, and the rear die 62 is coaxial with the corresponding feeding cavity 43. A cable guide 63 is fixedly installed on the top of the rear drawing die table 6. The cable guide 63 can limit the control wire harness 95 and prevent the control wire harness 95 from getting tangled. The output end of the hydraulic cylinder 8 slides out through the rear limiting hole 61. The rear limiting hole 61 corresponds to the position of the front limiting hole 51.

[0055] It should be noted that the rear drawing die table 6 has several threaded holes evenly distributed around the rear die hole, and the rear die 62 has several countersunk holes evenly distributed. The positions of the countersunk holes correspond to the positions of the threaded holes, and bolts are fixedly installed between the countersunk holes and the corresponding threaded holes.

[0056] Specific references Figure 4 The bottom of the pulling carriage 9 has a limiting groove 91, and a connecting platform 93 is fixedly installed on the front and rear sides of the pulling carriage 9. A control box 94 for controlling the hydraulic gripper is fixedly installed on the upper part of the pulling carriage 9. The control box 94 has a wiring hole, and the control wire harness 95 for controlling the hydraulic gripper passes through the wiring hole and the wiring tube 63. The pulling carriage 9 is clamped on the linear guide rail 12 through the limiting groove 91, and the limiting groove 91 is slidably connected to the linear guide rail 12. The pulling carriage 9 is fixedly connected to the output ends of the corresponding hydraulic cylinder 7 and hydraulic cylinder 8 through the connecting platform 93.

[0057] It should be noted that the control harness 95 uses a spiral elastic wire.

[0058] This invention also proposes a high-toughness stainless steel seamless pipe drawing process, including the following steps:

[0059] Initial state: Hydraulic cylinder 47 is in the retracted state, hydraulic cylinder 7 is in the extended state, hydraulic cylinder 8 is in the retracted state, and the pulling carriage 9 is on one side of the rear pulling mold table 6.

[0060] S1: Place the high-toughness stainless steel seamless pipes that need to be drawn into the corresponding feeding chambers 43;

[0061] S2: First, the hydraulic cylinder 47 on the base 2 3 drives the corresponding core mold head 48 to extend into the corresponding high-toughness stainless steel seamless steel pipe. Then, one end of the high-toughness stainless steel seamless steel pipe is pushed into the corresponding rear mold 62, and one end of the high-toughness stainless steel seamless steel pipe press head extends out of the rear mold 62.

[0062] S3: After extending, let the hydraulic jaws of the pulling carriage 9 close to the side of the rear mold 62 to clamp the end of the high-toughness stainless steel seamless steel pipe that extends out of the rear mold 62.

[0063] S4: After clamping, allow hydraulic cylinder 17 to retract. At the same time as hydraulic cylinder 17 retracts, allow hydraulic cylinder 28 to expand, so as to pull the high-toughness stainless steel seamless pipe until the high-toughness stainless steel seamless pipe is pulled out from the corresponding rear mold 62.

[0064] S5: After the high-toughness stainless steel seamless steel pipe is pulled out from the corresponding rear mold 62, the corresponding hydraulic cylinder 47 is reset. After the hydraulic cylinder 47 is reset, the high-toughness stainless steel seamless steel pipe to be pulled can be placed into the corresponding feeding chamber 43. At this time, the pulling carriage 9 is on one side of the front pulling mold table 5. Then, the hydraulic jaws of the pulling carriage 9 are released from the high-toughness stainless steel seamless steel pipe. In this way, the high-toughness stainless steel seamless steel pipe will be guided to both sides of the support seat 1 through the trapezoidal guide table 11.

[0065] S6: At this time, the hydraulic cylinder 47 on the base 2 drives the corresponding core mold head 48 to extend into the corresponding high-toughness stainless steel seamless steel pipe, and then pushes one end of the high-toughness stainless steel seamless steel pipe press head into the corresponding front mold 52, and lets one end of the high-toughness stainless steel seamless steel pipe press head protrude from the front mold 52.

[0066] S7: After extending, let the hydraulic jaws on the side of the drawing carriage 9 close to the front drawing die table 5 clamp one end of the high toughness stainless steel seamless pipe extending from the front die 52.

[0067] S8: After clamping, reset hydraulic cylinder 28. At the same time as resetting hydraulic cylinder 28, hydraulic cylinder 17 unfolds, which can pull the high-toughness stainless steel seamless pipe until the high-toughness stainless steel seamless pipe is pulled out from the front mold 52.

[0068] S9: After the high-toughness stainless steel seamless pipe is pulled out from the front mold 52, the corresponding hydraulic cylinder 47 is reset. After the hydraulic cylinder 47 is reset, the high-toughness stainless steel seamless pipe to be pulled can be placed into the corresponding feeding chamber 43. At this time, the pulling carriage 9 is on one side of the rear pulling mold table 6. Then, the hydraulic jaws of the pulling carriage 9 are released from the high-toughness stainless steel seamless pipe. In this way, the high-toughness stainless steel seamless pipe will be guided to both sides of the support seat 1 through the trapezoidal guide table 11.

[0069] S10: Finally, the high-toughness stainless steel seamless pipe is drawn by repeatedly using hydraulic cylinder 7 and hydraulic cylinder 8 in conjunction with the corresponding front mold 52 and rear mold 62 in the above manner.

[0070] Implementation List 2:

[0071] When it is necessary to draw high-toughness stainless steel seamless pipes of various sizes, simply remove the corresponding front die 52, rear die 62 and core die 48, and then replace them with the required front die 52, rear die 62 and core die 48.

[0072] It should also be noted that the maximum size of the high-toughness stainless steel seamless pipe being drawn cannot exceed the size of the feeding chamber 43, and the minimum inner diameter of the high-toughness stainless steel seamless pipe cannot be less than the diameter of the output end of the hydraulic cylinder 47.

[0073] All components used in this application are standard parts, and the specific connection methods of each part adopt conventional methods such as threads and bolts that are mature in the prior art. All structures use conventional materials that are in the prior art, and will not be described in detail here.

[0074] In summary, this high-toughness stainless steel seamless pipe drawing equipment and its processing technology, through its overall setup, allows for the drawing of high-toughness stainless steel seamless pipes. First, a hydraulic cylinder drives a drawing trolley in conjunction with the loading platform on base two and the rear drawing die table to draw the pipes. During the operation of hydraulic cylinder two, the high-toughness stainless steel seamless pipes to be drawn are placed on the loading platform on base one in advance. After hydraulic cylinder two draws the pipes, hydraulic cylinder one drives the drawing trolley to continue drawing the pipes. During the operation of hydraulic cylinder one, the pipes are placed on the loading platform on base two in advance. After hydraulic cylinder one completes the drawing of the pipes, hydraulic cylinder two quickly continues the drawing process. This cycle is repeated to draw the high-toughness stainless steel seamless pipes, making the overall process more efficient, convenient, and flexible.

[0075] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-toughness stainless steel seamless pipe drawing device, characterized in that: Includes a support base (1), wherein: a base one (2) and a base two (3) are fixedly installed at both ends of the support base (1), and a loading platform (4) is fixedly installed on each of the base one (2) and the base two (3); The front end of the support base (1) is fixedly installed with a front drawing die table (5), and the rear end of the support base (1) is fixedly installed with a rear drawing die table (6). A hydraulic cylinder 1 (7) is fixedly installed on the loading platform (4) on the base 1 (2). The output end of the hydraulic cylinder 1 (7) slides out from the front drawing die platform (5). A hydraulic cylinder 2 (8) is fixedly installed on the loading platform (4) on the base 2 (3). The output end of the hydraulic cylinder 2 (8) slides out from the rear drawing die platform (6). The output ends of the hydraulic cylinder one (7) and the hydraulic cylinder two (8) are fixedly installed with a pulling carriage (9). The pulling carriage (9) is slidably connected to the support seat (1). The pulling carriage (9) is located between the front pulling die table (5) and the rear pulling die table (6). The pulling trolley (9) has two mounting ports (92) on its front and rear sides, and each mounting port (92) is fixedly installed with a hydraulic gripper. The support base (1) includes a trapezoidal guide platform (11), and a linear guide rail (12) is fixedly installed on the top surface of the trapezoidal guide platform (11). Several weight-reducing grooves (13) are evenly distributed on the inclined surfaces on both sides of the trapezoidal guide platform (11). Baffles (14) are fixedly installed at both ends of the inclined surfaces on both sides of the trapezoidal guide platform (11). The drawing trolley (9) is slidably connected to the linear guide rail (12). The front drawing die platform (5) and the rear drawing die platform (6) are fixedly installed on both sides of the top of the trapezoidal guide platform (11). The loading platform (4) includes a platform (41) and a T-shaped platform (46), and a support plate (42) is fixedly installed on the bottom surface of the platform (41). The support plate (42) is fixedly installed on the corresponding base one (2) and base two (3). The upper surface of the platform (41) has two loading cavities (43) and one mounting cavity (44), and the two loading cavities (43) are located on both sides of the mounting cavity (44). A fixing ring (45) is fixedly installed at one end of the platform (41), and the fixing ring (45) is located in the mounting cavity (44). The T-shaped platform (46) is fixedly installed on the corresponding base. On the first seat (2) and the second base (3), two mounting holes are evenly distributed through the horizontal plate of the T-shaped platform (46). A hydraulic cylinder three (47) is fixedly installed in each mounting hole of the T-shaped platform (46). A core mold head (48) is fixedly installed at the output end of the hydraulic cylinder three (47), and the core mold head (48) is slidably connected to the corresponding feeding cavity (43). The first hydraulic cylinder (7) and the second hydraulic cylinder (8) are fixedly installed in the corresponding mounting cavity (44) through the fixing ring (45). One end of the platform (41) is in contact with the corresponding front drawing die platform (5) and rear drawing die platform (6).

2. The high-toughness stainless steel seamless pipe drawing equipment as described in claim 1, characterized in that: The surface of the front drawing die table (5) is provided with a front limiting hole (51) and two front die holes, and the two front die holes are located on both sides of the front limiting hole (51); a front die (52) is fixedly installed in each of the two front die holes of the front drawing die table (5); the output end of the hydraulic cylinder (7) slides out from the front limiting hole (51).

3. The high-toughness stainless steel seamless pipe drawing equipment as described in claim 2, characterized in that: The surface of the rear drawing die table (6) is provided with a rear limiting hole (61) and two rear die holes, and the two rear die holes are located on both sides of the rear limiting hole (61); a rear die (62) is fixedly installed in each of the two rear die holes of the rear drawing die table (6), and the rear die (62) is coaxial with the corresponding feeding cavity (43). A cable conduit (63) is fixedly installed on the top of the rear drawing die table (6); the output end of the hydraulic cylinder (8) slides out from the rear limiting hole (61); the rear limiting hole (61) is corresponding to the position of the front limiting hole (51).

4. The high-toughness stainless steel seamless pipe drawing equipment as described in claim 3, characterized in that: The bottom of the pulling carriage (9) has a limiting groove (91), and a connecting platform (93) is fixedly installed on the front and rear sides of the pulling carriage (9). A control box (94) for controlling the hydraulic gripper is fixedly installed on the upper part of the pulling carriage (9). The control box (94) has a wiring hole, and the control wire harness (95) for controlling the hydraulic gripper passes through the wiring hole and the wiring tube (63). The pulling carriage (9) is clamped on the linear guide rail (12) through the limiting groove (91), and the limiting groove (91) and the linear guide rail (12) are slidably connected. The pulling trolley (9) is fixedly connected to the output ends of the corresponding hydraulic cylinder one (7) and hydraulic cylinder two (8) via a connecting platform (93).

5. A high-toughness stainless steel seamless pipe drawing process applicable to the high-toughness stainless steel seamless pipe drawing equipment described in claim 4, characterized in that: Includes the following steps: Initial state: Hydraulic cylinder three (47) is in the retracted state, hydraulic cylinder one (7) is in the extended state, hydraulic cylinder two (8) is in the retracted state, and the pulling trolley (9) is on one side of the rear pulling mold table (6); S1: Place the high-toughness stainless steel seamless pipes that need to be drawn into the corresponding feeding chambers (43); S2: First, let the hydraulic cylinder three (47) on the base two (3) drive the corresponding core mold head (48) to extend into the corresponding high toughness stainless steel seamless steel pipe until one end of the high toughness stainless steel seamless steel pipe is pushed into the corresponding rear mold (62) and extends out from the rear mold (62). S3: Let the hydraulic jaws of the pulling carriage (9) close to the side of the rear mold (62) clamp the corresponding high-toughness stainless steel seamless pipe; S4: Then let hydraulic cylinder one (7) retract. While hydraulic cylinder one (7) retracts, let hydraulic cylinder two (8) unfold until the high toughness stainless steel seamless steel pipe is pulled out from the corresponding rear mold (62), and at the same time reset the corresponding hydraulic cylinder three (47). S5: After the high toughness stainless steel seamless pipe is pulled out from the corresponding rear mold (62), the pulling trolley (9) is on one side of the front pulling mold table (5), and then the hydraulic jaws of the pulling trolley (9) release the high toughness stainless steel seamless pipe. At this time, the high toughness stainless steel seamless pipe will be guided to both sides of the support seat (1) through the trapezoidal guide table (11). S6: At this time, the hydraulic cylinder three (47) on the base one (2) drives the corresponding core mold head (48) to extend into the corresponding high toughness stainless steel seamless steel pipe until one end of the high toughness stainless steel seamless steel pipe is pushed into the corresponding front mold (52) and extends out from the front mold (52). S7: Then let the hydraulic grippers on the side of the drawing carriage (9) close to the front drawing die table (5) clamp the material extending from the front die (52). High-toughness stainless steel seamless pipes were produced. S8: Reset hydraulic cylinder two (8). At the same time as resetting hydraulic cylinder two (8), hydraulic cylinder one (7) unfolds until the high-toughness stainless steel seamless pipe is pulled out from the front mold (52). During the process, the high-toughness stainless steel seamless steel pipe to be pulled is placed in advance in the feeding chamber (43) of the feeding platform (4) on the base (3); S9: After the high-toughness stainless steel seamless pipe is pulled out from the front mold (52), the pulling carriage (9) is on one side of the rear pulling mold table (6), and then the hydraulic jaws of the pulling carriage (9) release the high-toughness stainless steel seamless pipe. At this time, the high-toughness stainless steel seamless pipe will be guided to both sides of the support seat (1) through the trapezoidal guide table (11). S10: Finally, in the above manner, the high-toughness stainless steel seamless pipe is drawn by the hydraulic cylinder one (7) and hydraulic cylinder two (8) in conjunction with the corresponding front mold (52) and rear mold (62).

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