Intelligent cold drawing machine for stainless steel pipe

Abstract

The utility model provides an intelligent cold-drawing machine for stainless steel pipes, which comprises a machine base, a two-linkage die table is fixedly mounted at one end above the machine base, a three-linkage die table is fixedly mounted at the other end above the machine base, and a linear guide rail is fixedly mounted above the machine base; the linear guide rail is positioned between the two-linkage mold table and the three-linkage mold table; according to the integral arrangement of the cold-drawing device, in the cold-drawing process of the stainless steel pipe, the cold-drawing trolley can be driven by the hydraulic cylinder to perform cold-drawing on the stainless steel pipe alternately and reciprocally between the triple die table and the dual die table, so that empty trolley resetting is effectively avoided, and the cold-drawing efficiency of the stainless steel pipe is improved.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe production and processing, and in particular to an intelligent cold drawing machine for stainless steel pipes. Background Technology

[0002] Cold drawing is a material processing technique. For metallic materials, cold drawing refers to drawing the material at room temperature to achieve a specific shape and mechanical properties. Compared to hot-formed materials, cold-drawn products have advantages such as higher dimensional accuracy and better surface finish. Based on the temperature of the metal during cold drawing, cold drawing below the recrystallization temperature is called cold drawing, while cold drawing above the recrystallization temperature is called hot drawing. Cold drawing is the most common method used in the production of metal wires. In hot drawing, the metal wire is heated before entering the die, mainly used for cold drawing of high-melting-point metals such as tungsten and molybdenum. In warm drawing, the metal wire also needs to be heated to a specified temperature range by a heater before entering the die, mainly used for cold drawing of zinc wire, difficult-to-deform alloy wires such as high-speed steel wire, and bearing steel wire. When processing stainless steel products, they need to be stretched and modified using cold drawing equipment.

[0003] However, existing intelligent cold drawing machines for hydraulic stainless steel pipes require a no-load reset during the cold drawing process, which wastes a lot of time and affects the efficiency of cold drawing stainless steel pipes.

[0004] Therefore, it is essential to invent an intelligent cold drawing machine for stainless steel pipes. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an intelligent cold drawing machine for stainless steel pipes, including a machine base. A two-piece mold table is fixedly installed at one end of the upper part of the machine base, and a three-piece mold table is fixedly installed at the other end of the upper part of the machine base. A linear guide rail is fixedly installed on the upper part of the machine base. The linear guide rail is located between the two-piece mold table and the three-piece mold table, and the two-piece mold table and the three-piece mold table are arranged in a mirror position with the linear guide rail as the center.

[0006] Preferably, a hydraulic cylinder is fixedly mounted on one end of the machine base near the two-piece mold table via a fixing bracket, and the output end of the hydraulic cylinder extends from the two-piece mold table and faces the three-piece mold table. A cold drawing trolley is fixedly mounted on the output end of the hydraulic cylinder; the cold drawing trolley is slidably connected to a linear guide rail; a two-piece guide frame is fixedly mounted on one end of the machine base near the two-piece mold table, and a three-piece guide frame is fixedly mounted on one end of the machine base near the three-piece mold table.

[0007] Preferably, two molds are evenly and fixedly installed on the two-piece mold platform, and the two molds are located on both sides of the output end of the hydraulic cylinder, and are arranged in a mirror position with the output end of the hydraulic cylinder as the center; the position of the two-piece guide frame corresponds to the position of the molds on the two-piece mold platform; a through hole is opened through the surface of the two-piece mold platform, and the through hole is located between the two molds on the two-piece mold platform; the output end of the hydraulic cylinder slides through the through hole;

[0008] Preferably, three molds are evenly and fixedly installed on the three-piece mold platform, and the positions of two molds on the three-piece mold platform correspond one-to-one with the positions of two molds on the two-piece mold platform; the position of the three-piece guide frame corresponds to the position of the molds on the three-piece mold platform.

[0009] Preferably, the rear end of the cold drawing carriage has two rear cold drawing holes evenly distributed, and the positions of the two rear cold drawing holes correspond one-to-one with the two molds on the two-piece mold table; the front end of the cold drawing carriage has three front cold drawing holes evenly distributed, and the positions of the three front cold drawing holes correspond one-to-one with the three molds on the three-piece mold table.

[0010] Preferably, each of the rear and front cold-drawn holes is equipped with a hydraulic clamp for holding the stainless steel tube.

[0011] Preferably, the two-section guide frame includes a U-shaped support frame, and each end of the opening of the U-shaped support frame is fixedly installed with a loading platform. The upper surface of the loading platform is provided with a guiding cavity. The hydraulic cylinder is located between the two loading platforms and is arranged in parallel with the loading platforms. The positions of the two loading platforms correspond one-to-one with the two molds on the two-section mold platform. The guiding cavity corresponds to and is connected to the two molds on the two-section mold platform.

[0012] An electrical control box is fixedly installed on one side of the machine base, and the controller inside the electrical control box is electrically connected to the hydraulic cylinder and the hydraulic clamp.

[0013] Preferably, the triple guide frame includes an E-shaped support frame, and each of the three ends of the opening of the E-shaped support frame is fixedly installed with a second loading platform, which is arranged perpendicular to the second loading platform and the two loading platforms are arranged parallel to each other; the second loading platform has a second guiding cavity, and the position of the second loading platform corresponds one-to-one with the position of the three molds on the triple mold platform, and the second guiding cavity corresponds to and is connected to the corresponding molds on the triple mold platform.

[0014] Preferably, the linear guide rail includes a rectangular guide rail, and a triangular guide rail is fixedly installed on the upper surface of the rectangular guide rail. The rectangular guide rail and the triangular guide rail are slidably connected to the cold drawing carriage; the rectangular guide rail is fixedly installed on the machine base.

[0015] Preferably, the bottom surface of the cold-drawing trolley is provided with a sliding groove that matches the rectangular guide rail and the triangular guide rail, and the sliding groove is engaged with the rectangular guide rail and the triangular guide rail and is slidably connected to the rectangular guide rail and the triangular guide rail.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The overall design of this utility model allows the cold drawing trolley to be driven by a hydraulic cylinder to alternately and repeatedly cold draw the stainless steel tube between the three-piece mold table and the two-piece mold table during the cold drawing process. This effectively avoids empty resetting and thus improves the efficiency of cold drawing stainless steel tubes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the exploded structure of the linear guide rail and cold-drawn trolley of this utility model.

[0020] In the picture:

[0021] 1. Base; 2. Two-piece mold table; 3. Mold; 4. Three-piece mold table; 5. Linear guide rail; 6. Rectangular guide rail; 7. Triangular guide rail; 8. Loading platform 1; 9. Loading platform 2; 10. U-shaped support frame; 11. E-shaped support frame; 12. Guide cavity; 13. Guide cavity 2; 14. Hydraulic cylinder; 15. Cold drawing carriage; 16. Rear cold drawing hole; 17. Front cold drawing hole; 18. Slide groove; 19. Fixing frame. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. 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 should fall within the protection scope of the present invention.

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] Example:

[0025] As attached Figure 1 To be continued Figure 2 As shown:

[0026] This utility model provides an intelligent cold drawing machine for stainless steel pipes, including a base 1. A two-piece mold platform 2 is fixedly installed at one end of the upper part of the base 1. With the two-piece mold platform 2, the stainless steel pipe can be cold drawn by the two-piece mold platform 2 when the cold drawing carriage 12 approaches the two-piece mold platform 2. A three-piece mold platform 3 is fixedly installed at the other end of the upper part of the base 1. With the three-piece mold platform 3, the stainless steel pipe can be cold drawn by the three-piece mold platform 3 when the cold drawing carriage 12 approaches the three-piece mold platform 3. A linear guide rail 4 is fixedly installed on the upper part of the base 1. With the linear guide rail 4, the cold drawing carriage 12 can be supported and limited to prevent the weight of the cold drawing carriage 12 from directly acting on the hydraulic cylinder 11. The linear guide rail 4 is located between the two-piece mold platform 2 and the three-piece mold platform 3, and the two-piece mold platform 2 and the three-piece mold platform 3 are arranged in a mirror position with the linear guide rail 4 as the center.

[0027] A hydraulic cylinder 11 is fixedly mounted on one end of the machine base 1 near the two-piece mold table 2 via a fixing bracket 16. The hydraulic cylinder 11 drives a cold-drawing carriage 12 to alternately and repeatedly cold-draw the stainless steel tube between the two-piece mold table 2 and the three-piece mold table 3. The output end of the hydraulic cylinder 11 extends from the two-piece mold table 2 and faces the three-piece mold table 3. The output end of the hydraulic cylinder 11 is fixedly mounted with the cold-drawing carriage 12, which can hold and fix one end of the stainless steel tube. The cold-drawing carriage 12 is slidably connected to the linear guide rail 4. A two-piece guide frame is fixedly mounted on one end of the machine base 1 near the two-piece mold table 2, and a three-piece guide frame is fixedly mounted on the other end of the machine base 1 near the three-piece mold table 3. It should be noted that the hydraulic cylinder 11 is connected to an external hydraulic pump station.

[0028] Two molds 21 are evenly and fixedly installed on the two-piece mold table 2. By coordinating the two-piece mold table 2 with the molds 21, two stainless steel tubes can be cold-drawn simultaneously. The two molds 21 are located on both sides of the output end of the hydraulic cylinder 11 and are positioned in a mirror image with the output end of the hydraulic cylinder 11 as the center. The position of the two guide frames corresponds to the position of the molds 21 on the two-piece mold table 2. A through hole is opened through the surface of the two-piece mold table 2, and the through hole is located between the two molds 21 on the two-piece mold table 2. The output end of the hydraulic cylinder 11 slides through the through hole.

[0029] Three molds 21 are evenly and fixedly installed on the three-piece mold table 3. With the arrangement of the molds 21 and the three-piece mold table 3, three stainless steel tubes can be cold-drawn at the same time. The positions of two molds 21 on the three-piece mold table 3 correspond one-to-one with the positions of two molds 21 on the two-piece mold table 2. The position of the three-piece guide frame corresponds to the position of the molds 21 on the three-piece mold table 3.

[0030] The rear end of the cold drawing carriage 12 is provided with two rear cold drawing holes 13. With the help of the hydraulic clamps, the stainless steel tube can be cold drawn through the two-piece mold table 2. The positions of the two rear cold drawing holes 13 correspond one-to-one with the two molds 21 on the two-piece mold table 2. The front end of the cold drawing carriage 12 is provided with three front cold drawing holes 14. With the help of the hydraulic clamps, the stainless steel tube can be cold drawn through the three-piece mold table 3. The positions of the three front cold drawing holes 14 correspond one-to-one with the three molds 21 on the three-piece mold table 3.

[0031] Hydraulic grippers are used to fix and clamp the stainless steel pipes in the rear cold-drawn hole 13 and the front cold-drawn hole 14; it should be noted that the hydraulic grippers are connected to an external hydraulic pump station.

[0032] The two-section guide frame includes a U-shaped support frame 7, which supports and fixes the loading platform 5. The loading platform 5 is fixedly installed at both ends of the opening of the U-shaped support frame 7. The upper surface of the loading platform 5 is provided with a guide cavity 9. Through the setting of the loading platform 5 and the guide cavity 9, the stainless steel tubes to be cold-drawn can be conveyed into the two molds 21 on the two-section mold table 2. One end of the loading platform 5 is fixedly connected to one end of the machine base 1. The hydraulic cylinder 11 is located between the two loading platforms 5 and is arranged parallel to the loading platforms 5. The positions of the two loading platforms 5 correspond one-to-one with the two molds 21 on the two-section mold table 2. The guide cavity 9 is coaxial with the corresponding mold 21 on the two-section mold table 2.

[0033] An electrical control box is fixedly installed on one side of the base 1, and the controller inside the electrical control box is electrically connected to the hydraulic cylinder 11 and the hydraulic clamp. It should be noted that the controller adopts existing technology, such as the PLC in the existing technology, so it will not be described in detail here.

[0034] The triple-feeder frame includes an E-shaped support frame 8, which supports and fixes the loading platform 2 6. Each of the three open ends of the E-shaped support frame 8 is fixedly installed with the loading platform 2 6, and the loading platforms 2 6 are arranged perpendicularly to each other. The loading platforms 2 6 are arranged parallel to each other. One end of the loading platform 2 6 is fixedly connected to the other end of the machine base 1. The loading platform 2 6 has a guide cavity 2 10. With the loading platform 2 6 and the guide cavity 2 10, the stainless steel tubes to be cold-drawn can be conveyed into the corresponding molds 21 on the triple-mold table 3. The position of the loading platform 2 6 corresponds one-to-one with the position of the three molds 21 on the triple-mold table 3. The guide cavity 2 10 is coaxial with the corresponding molds 21 on the triple-mold table 3.

[0035] The linear guide 4 includes a rectangular guide 41, and a triangular guide 42 is fixedly installed on the upper surface of the rectangular guide 41. The rectangular guide 41 and the triangular guide 42 are slidably connected to the cold drawing carriage 12. By setting the rectangular guide 41 in conjunction with the triangular guide 42, the cold drawing carriage 12 can be limited to ensure the stability and smoothness of the cold drawing carriage 12 during movement. At the same time, the triangular guide 42 can automatically guide the cold-drawn stainless steel tube to both sides of the machine base 1.

[0036] The bottom surface of the cold-drawing carriage 12 is provided with a groove 15 that matches the rectangular guide rail 41 and the triangular guide rail 42. The groove 15 is engaged with the rectangular guide rail 41 and the triangular guide rail 42 and is slidably connected with the rectangular guide rail 41 and the triangular guide rail 42. By setting the groove 15, the contact area between the cold-drawing carriage 12 and the linear guide rail 4 can be increased, thereby ensuring the smoothness and stability of the cold-drawing carriage 12 during operation.

[0037] It should be noted that, in the initial state, the cold drawing carriage 12 is located on one side of the two-piece mold table 2.

[0038] In this embodiment, when cold drawing stainless steel tubes, firstly, the stainless steel tubes are transported to the guide cavity 9 of the corresponding loading platform 5 by an external automatic feeding mechanism, and one end of the stainless steel tubes passes through the mold 21 on the two-piece mold platform 2. At this time, the hydraulic clamp in the rear cold drawing hole 13 on the cold drawing carriage 12 can hold one end of the stainless steel tube. Then, the hydraulic cylinder 11 drives the cold drawing carriage 12 to move to one side of the three-piece mold platform 3, thereby cold drawing the stainless steel tubes. During the cold drawing process, the stainless steel tubes to be cold drawn are placed in the guide cavity 10 of the loading platform 6 by the external automatic feeding mechanism in advance. After the cold drawing carriage 12 moves the stainless steel tubes to one side of the three-piece mold platform 3, the hydraulic clamp in the rear cold drawing hole 13 is released. The cold-drawn stainless steel tubes will then be guided to both sides of the automatic guide base 1 by the triangular guide rail 42.

[0039] At this point, one end of the stainless steel tube in the guide cavity 2 10 can be passed through the mold 21 on the triple mold table 3, and the stainless steel tube can be held by the hydraulic clamp in the front cold drawing hole 14 on the cold drawing carriage 12. Then, the cold drawing carriage 12 is driven by the hydraulic cylinder 11 to move to one side of the double mold table 2, so as to cold draw the stainless steel tube.

[0040] Finally, this process is repeated alternately, thus avoiding the trouble of the cold-drawn carriage 12 needing to be reset when empty.

[0041] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. An intelligent cold drawing machine for stainless steel pipes, characterized in that: Includes a base (1), on one end of the base (1) a two-piece mold table (2) is fixedly installed, and on the other end of the base (1) a three-piece mold table (3) is fixedly installed. A linear guide rail (4) is fixedly installed on the base (1); the linear guide rail (4) is located between the two-piece mold table (2) and the three-piece mold table (3). A hydraulic cylinder (11) is fixedly installed at one end of the machine base (1) near the two-piece mold table (2) via a fixing bracket (16), and the output end of the hydraulic cylinder (11) extends out from the two-piece mold table (2). A cold drawing trolley (12) is fixedly installed at the output end of the hydraulic cylinder (11); the cold drawing trolley (12) is slidably connected to the linear guide rail (4); a two-piece guide frame is fixedly installed at one end of the machine base (1) near the two-piece mold table (2), and a three-piece guide frame is fixedly installed at one end of the machine base (1) near the three-piece mold table (3); Two molds (21) are evenly and fixedly installed on the two-piece mold platform (2), and the two molds (21) are located on both sides of the output end of the hydraulic cylinder (11); the position of the two-piece guide frame corresponds to the position of the molds (21) on the two-piece mold platform (2); a through hole is opened through the surface of the two-piece mold platform (2), and the through hole is located between the two molds (21) on the two-piece mold platform (2); the output end of the hydraulic cylinder (11) slides through the through hole; Three molds (21) are evenly and fixedly installed on the three-piece mold table (3), and the positions of two of the molds (21) on the three-piece mold table (3) correspond one-to-one with the two molds (21) on the two-piece mold table (2); the position of the three-piece guide frame corresponds to the position of the molds (21) on the three-piece mold table (3); The rear end of the cold drawing carriage (12) has two rear cold drawing holes (13) evenly distributed, and the positions of the two rear cold drawing holes (13) correspond one-to-one with the two molds (21) on the two-piece mold table (2); the front end of the cold drawing carriage (12) has three front cold drawing holes (14) evenly distributed, and the positions of the three front cold drawing holes (14) correspond one-to-one with the three molds (21) on the three-piece mold table (3); Hydraulic clamps are used to fix and hold stainless steel pipes in the rear cold drawing hole (13) and the front cold drawing hole (14). An electrical control box is fixedly installed on one side of the base (1), and the controller inside the electrical control box is electrically connected to the hydraulic cylinder (11) and the hydraulic clamp.

2. The intelligent cold drawing machine for stainless steel pipes as described in claim 1, characterized in that: The two-section guide frame includes a U-shaped support frame (7), and each end of the opening of the U-shaped support frame (7) is fixedly installed with a loading platform (5). The upper surface of the loading platform (5) is provided with a guide cavity (9). The hydraulic cylinder (11) is located between the two loading platforms (5), and the positions of the two loading platforms (5) correspond one-to-one with the two molds (21) on the two-section mold platform (2). The guide cavity (9) corresponds to and is connected to the two molds (21) on the two-section mold platform (2).

3. The intelligent cold drawing machine for stainless steel pipes as described in claim 2, characterized in that: The triple guide frame includes an E-shaped support frame (8), and each of the three ends of the opening of the E-shaped support frame (8) is fixedly installed with a loading platform (6), which is arranged in parallel. The loading platform (6) is provided with a guide cavity (10), and the position of the loading platform (6) corresponds one-to-one with the position of the three molds (21) on the triple mold platform (3). The guide cavity (10) corresponds to and is connected to the corresponding mold (21) on the triple mold platform (3).

4. The intelligent cold drawing machine for stainless steel pipes as described in claim 1, characterized in that: The linear guide rail (4) includes a rectangular guide rail (41), and a triangular guide rail (42) is fixedly installed on the upper surface of the rectangular guide rail (41). The rectangular guide rail (41) and the triangular guide rail (42) are slidably connected to the cold drawing carriage (12); the rectangular guide rail (41) is fixedly installed on the machine base (1).

5. The intelligent cold drawing machine for stainless steel pipes as described in claim 4, characterized in that: The bottom surface of the cold-drawing trolley (12) is provided with a sliding groove (15) that matches the rectangular guide rail (41) and the triangular guide rail (42). The sliding groove (15) is engaged on the rectangular guide rail (41) and the triangular guide rail (42) and is slidably connected to the rectangular guide rail (41) and the triangular guide rail (42).

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