Intelligent automatic stainless steel tube cold broaching machine

Abstract

The invention discloses an intelligent and automatic stainless steel pipe cold broaching machine which comprises a cold drawing machine, an I-shaped steel guide rail is fixedly installed above the cold drawing machine through a supporting frame, two electric walking mechanisms are installed on the I-shaped steel guide rail in a rolling mode, and the two electric walking mechanisms are fixedly connected through a connecting frame. According to the cold-drawing and cold-drawing machine for the stainless steel pipe, due to the overall arrangement, when cold-drawing and cold-drawing machining is conducted on the stainless steel pipe, a mold at the head end of a core rod does not need to be manually disassembled and replaced, and when the mold needs to be replaced, the mold at the head end of the core rod does not need to be manually disassembled and replaced; the combined body of the core rod and the die can be automatically transferred from the upper space of the cold-drawing machine, so that the die replacement process is safer, more convenient and more flexible.

Description

Technical Field

[0001] The present invention relates to the technical field of cold drawing machines, and specifically to an intelligent and automated cold drawing machine for stainless steel pipes. Background Art

[0002] During the drawing process of a hydraulic cold drawing machine, it is under automated control. However, after drawing one steel pipe, manual intervention is required to disassemble the die from the mandrel, transfer it to the tail of the newly loaded steel pipe by a crane, then pass the mandrel through the inner hole of the steel pipe, and connect the transferred die and mandrel before starting the cold drawing. According to statistics, the drawing time for one steel pipe is 3 minutes. Disassembling the die, loading a new steel pipe, and installing the die altogether take more than 10 minutes. Moreover, there are many human factors and uncontrollable factors in the transfer of the die. One employee can only operate one cold drawing machine, resulting in a high work intensity.

[0003] Therefore, it is very necessary to invent a multi-purpose slope protection device for water conservancy projects. Summary of the Invention

[0004] The purpose of the present invention is to provide an intelligent and automated cold drawing machine for stainless steel pipes to solve the problems of time-consuming and laborious manual disassembly and assembly of the die and many uncontrollable factors during the transfer process of the existing cold drawing machine for stainless steel pipes.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An intelligent and automated cold drawing machine for stainless steel pipes: including a cold drawing machine, wherein: above the cold drawing machine, an I-beam guide rail is fixedly installed through a support frame, two electric traveling mechanisms are rollingly installed on the I-beam guide rail, the two electric traveling mechanisms are fixedly connected through a connecting frame, an electric hoist crane is fixedly installed on each of the two electric traveling mechanisms, and a suspension mechanism is fixedly installed between the two electric hoist cranes;

[0006] Preferably, the suspension mechanism includes a cage, on both sides of the upper surface of the cage, a lifting ring and a rotary cylinder are fixedly installed respectively, on both sides of the lower surface of the cage, a lifting hook is rotatably installed respectively, the top end of the lifting hook rotatably passes through the cage and is fixedly connected to the output end of the rotary cylinder, the two rotary cylinders are between the two lifting rings, and the lifting ring is fixedly connected to the hook of the corresponding electric hoist crane;

[0007] Preferably, an air pump box is fixedly installed on the bottom surface of the connecting frame, and the rotary cylinder is fixedly connected to the air pump inside the air pump box through an air pipe;

[0008] Preferably, travel switches for restricting the positions of the electric traveling mechanisms are fixedly installed at both ends of the I-beam guide rail respectively;

[0009] Preferably, a control console is fixedly installed on one side of the cold drawing machine, and a PLC controller for controlling the operation of the entire device is fixedly installed inside the control console.

[0010] Preferably, the cold drawing machine includes a die base, an L base, a hydraulic cylinder base, a connecting column and a hydraulic cylinder, the die base and the L base are fixedly connected via a connecting column, the die base and the hydraulic cylinder base are fixedly connected via a connecting column, the die base is located between the L base and the hydraulic cylinder base, one end of the hydraulic cylinder is fixedly connected to one side of the hydraulic cylinder base, and the output end of the hydraulic cylinder slides out from the other side of the hydraulic cylinder base.

[0011] Preferably, a material table is fixedly installed between the mold base and the L base.

[0012] Preferably, a drawing trolley slide rail platform is fixedly installed between the die base and the hydraulic cylinder base.

[0013] Preferably, a guide rail platform for a core rod pushing trolley is fixedly mounted on the outer side of the L seat.

[0014] Preferably, the support frame includes a column and a support arm, the top of the column is fixedly connected to one end of the support arm, the support arm and the column are vertically arranged, the support arm spans above the cold drawing machine, and the I-beam guide rail is fixedly installed on the lower side of the support arm.

[0015] Preferably, the electric walking mechanism includes a seat, a roller frame, a roller and a reduction motor, the outer sides of the four corners of the seat are fixedly mounted with roller frames, the inner side of the other end of each roller frame is rotatably mounted with rollers, the outer side of one of the roller frames is fixedly mounted with a reduction motor, the output end of the reduction motor is fixedly connected to the roller on the roller frame, the roller is rollingly connected to the I-beam guide rail, and the electric hoist crane is fixedly mounted on the lower side of the seat.

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

[0017] Through the overall arrangement of the present invention, when cold drawing a stainless steel pipe, the mold at the head end of the mandrel no longer needs to be manually disassembled and replaced. When replacement is required, the combination of the mandrel and the mold can be automatically transferred from the upper space of the cold drawing machine, thereby making the mold replacement process safer, more convenient and flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the structure of the suspension mechanism of the present invention without lifting the core rod and mold assembly.

[0020] Figure 3 It is a structural schematic diagram of a suspension mechanism lifting a core rod mold assembly of the present invention.

[0021] Figure 4 It is a schematic structural diagram of the electric walking mechanism of the present invention.

[0022] Figure 5 It is a schematic diagram of the partial enlarged structure at position A of the present invention.

[0023] In the figure:

[0024] Die base 1, L-shaped seat 2, hydraulic cylinder seat 3, connecting column 4, hydraulic cylinder 5, material table 6, drawing trolley slide rail table 7, mandrel pushing trolley guide rail table 8, column 9, support arm 10, I-beam guide rail 11, travel switch 12, connecting frame 13, vehicle seat 14, roller frame 15, roller 16, reduction motor 17, electric hoist crane 18, cage 19, lifting ring 20, rotary cylinder 21, hook 22, air pump box 23, hydraulic support frame 24, mandrel die combination A. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment:

[0027] As shown in the attached Figures 1-5 figure

[0028] An intelligent and automated stainless steel pipe cold drawing machine provided by the present invention includes a cold drawing machine. Among them: an I-beam guide rail 11 is fixedly installed above the cold drawing machine through a support frame, so that the electric walking mechanism can be supported through the I-beam guide rail 11 and the stability of the electric walking mechanism during walking can be ensured. Two electric walking mechanisms are installed on the I-beam guide rail 11 in a rolling manner, so that the electric walking mechanism can carry the electric hoist crane 18 and the suspension mechanism to reciprocate above the cold drawing machine. The two electric walking mechanisms are fixedly connected through a connecting frame 13, and the stability between the two electric walking mechanisms can be ensured through the connecting frame 13. An electric hoist crane 18 is fixedly installed on each of the two electric walking mechanisms, so that the suspension mechanism can be lifted and lowered through the electric hoist crane 18. A suspension mechanism is fixedly installed between the two electric hoist cranes 18, so that the mandrel die combination A can be picked up and placed through the suspension mechanism;

[0029] During the process of lifting the mandrel die assembly A on the drawing and pulling trolley slide rail table 7, when the rope of the electric hoist crane 18 is fully released, the opening of the hook 22 will be below one side of the mandrel die assembly A. At this time, the rotary cylinder 21 will drive the hook 22 to rotate, so that the opening of the hook 22 faces the mandrel die assembly A and is below the mandrel die assembly A. So that when the hook 22 rises, the mandrel die assembly A can enter the opening of the hook 22, and then the mandrel die assembly A can be lifted; after the rope of the electric hoist crane 18 is fully wound up, the hook 22 will carry the mandrel die assembly A on the drawing and pulling trolley slide rail table 7 and move above the cold drawing machine;

[0030] In this embodiment, the suspension mechanism includes a cage 19 to ensure the stability of the rotary cylinder 21 and the hook 22. On both sides of the upper surface of the cage 19, a lifting ring 20 and a rotary cylinder 21 are fixedly installed respectively. On both sides of the lower surface of the cage 19, hooks 22 are rotatably installed respectively. The top end of the hook 22 passes through the cage 19 rotatably and is fixedly connected with the output end of the rotary cylinder 21. The two rotary cylinders 21 are between the two lifting rings 20, and the lifting rings 20 are fixedly connected with the hooks of the corresponding electric hoist crane 18; so that when lifting the mandrel die assembly A, the rotary cylinder 21 drives the hook 22 to rotate to adjust the direction of the opening of the hook 22;

[0031] It should be noted that in the initial state, the directions of the openings of the hooks 22 both face one end of the cage 19, so that during the process of the suspension mechanism descending, the hooks 22 are staggered from the mandrel die assembly A above the drawing and pulling trolley slide rail table 7, avoiding the mandrel die assembly A from blocking the descent of the hooks 22;

[0032] In this embodiment, an air pump box 23 is fixedly installed on the bottom surface of the connecting frame 13, and the rotary cylinder 21 is fixedly connected with the air pump inside the air pump box 23 through an air pipe, so as to provide the required power for the rotary cylinder 21 through the air pump;

[0033] In this embodiment, travel switches 12 for restricting the position of the electric walking mechanism are fixedly installed at both ends of the I-beam guide rail 11 respectively, so as to restrict the moving range of the electric walking mechanism; one end of the I-beam guide rail 11 is flush with one side of the hydraulic cylinder seat 3 where the hydraulic cylinder 5 is installed, and the other end of the I-beam guide rail 11 is flush with the outer end face of the trolley slide rail table 8;

[0034] A control console is fixedly installed on one side of the cold drawing machine, and a PLC controller for controlling the operation of the whole equipment is fixedly installed inside the control console, so that employees can operate on the control panel to realize the control of the hydraulic cold drawing machine.

[0035] In this embodiment, the cold drawing machine includes a die holder 1, an L-shaped seat 2, a hydraulic cylinder seat 3, a connecting column 4, and a hydraulic cylinder 5. The die holder 1 is fixedly connected to the L-shaped seat 2 through the connecting column 4, and the die holder 1 is fixedly connected to the hydraulic cylinder seat 3 through the connecting column 4, so as to ensure the stability between the die holder 1, the L-shaped seat 2, and the hydraulic cylinder seat 3 through the connecting column 4. The die holder 1 is located between the L-shaped seat 2 and the hydraulic cylinder seat 3. One end of the hydraulic cylinder 5 is fixedly connected to one side of the hydraulic cylinder seat 3, and the output end of the hydraulic cylinder 5 slides out from the other side of the hydraulic cylinder seat 3, so as to drive the drawing trolley through the hydraulic cylinder 5 to draw the stainless steel pipe.

[0036] In this embodiment, a material table 6 is fixedly installed between the die holder 1 and the L-shaped seat 2 for placing the stainless steel pipe to be drawn. A stainless steel pipe hydraulic positioning structure is fixedly installed above the die holder 1 and the L-shaped seat 2, and at least three groups of hydraulic support frames 24 are fixedly installed uniformly on the material table 6.

[0037] In this embodiment, a drawing trolley slide rail platform 7 is fixedly installed between the die holder 1 and the hydraulic cylinder seat 3. A drawing trolley for drawing the stainless steel pipe and at least three groups of hydraulic support frames 24 are slidably installed on the drawing trolley slide rail platform 7, and the drawing trolley is fixedly connected to the output end of the hydraulic cylinder 5; through the setting of the drawing trolley slide rail platform 7, the stability of the drawing trolley during the moving process can be ensured. At the same time, when replacing the mandrel die assembly A, the mandrel die assembly A is moved onto the drawing trolley slide rail platform 7, and the mandrel die assembly A is supported by the hydraulic support frames 24 on the drawing trolley slide rail platform 7, so as to lift the mandrel die assembly A through the suspension mechanism.

[0038] In this embodiment, a mandrel pushing trolley guide rail platform 8 is fixedly installed outside the L-shaped seat 2. A pushing trolley for pushing the mandrel die assembly A and at least three groups of hydraulic support frames 24 are slidably installed on the mandrel pushing trolley guide rail platform 8. The pushing trolley is driven by an external hydraulic cylinder or a chain; through the setting of the mandrel pushing trolley guide rail platform 8, the stability of the pushing trolley can be ensured. At the same time, the mandrel die assembly A lifted by the suspension mechanism can be placed on the mandrel pushing trolley guide rail platform 8 and the pushing trolley, so that the pushing trolley can push the mandrel die assembly A to one side of the material table 6;

[0039] The hydraulic support frame 24 is composed of a second hydraulic cylinder and a support plate. The support plate is fixedly installed at the output end of the second hydraulic cylinder, and the second hydraulic cylinder is fixedly installed on the corresponding material table 6, drawing trolley slide rail platform 7, and mandrel pushing trolley guide rail platform 8; through the setting of the hydraulic support frame 24, during the process of lifting the mandrel die assembly A, the mandrel die assembly A is supported, so that a certain gap is generated between the mandrel die assembly A and the corresponding drawing trolley slide rail platform 7 and mandrel pushing trolley guide rail platform 8, so as to provide an operating space for the hook 22 to lift the mandrel die assembly A.

[0040] In this embodiment, the support frame includes a column 9 and a support arm 10. The top end of the column 9 is fixedly connected to one end of the support arm 10. The support arm 10 is vertically arranged with respect to the column 9. The support arm 10 spans above the cold drawing machine, and the I-beam guide rail 11 is fixedly installed on the lower side of the support arm 10. Through the arrangement of the column 9 and the support arm 10, the I-beam guide rail 11 can be positioned directly above the cold drawing machine, creating a space for the suspension mechanism to move relative to the cold drawing machine and ensuring the stability of the I-beam guide rail 11.

[0041] In this embodiment, the electric traveling mechanism includes a seat 14, a roller frame 15, rollers 16, and a reduction motor 17. Roller frames 15 are fixedly installed on the outer sides of the four corners of the seat 14. Rollers 16 are rotatably installed on the inner sides of the other ends of each roller frame 15. A reduction motor 17 is fixedly installed on the outer side of one of the roller frames 15. The output end of the reduction motor 17 is fixedly connected to the roller 16 on this roller frame 15. The rollers 16 are in rolling connection with the I-beam guide rail 11. The electric hoist crane 18 is fixedly installed on the lower side of the seat 14. So that the reduction motor 17 can drive the rollers 16 to rotate forward and backward, thereby moving back and forth along the I-beam guide rail 11.

[0042] It should be noted that the electric hoist crane 18, the rotary cylinder 21, the air pump, the travel switch 12, and the reduction motor 17 are communicatively electrically connected to the PLC controller through a drag chain, and the drag chain is fixedly installed on one side of the I-beam guide rail 11.

[0043] When it is necessary to replace the mandrel die assembly A, the hydraulic cylinder 5 drives the drawing carriage to move the mandrel die assembly A from the material table 6 to the drawing carriage slide rail table 7 through the die holder 1, and the mandrel die assembly A is lifted by the hydraulic support frame 24 on the drawing carriage slide rail table 7.

[0044] Then, the electric traveling mechanism carries the electric hoist crane 18 and the suspension mechanism and moves to one side of the drawing carriage slide rail table 7 until the electric traveling mechanism triggers the travel switch 12 near the hydraulic cylinder seat 3 of the I-beam guide rail 11. At this time, the electric traveling mechanism will stop moving, and the suspension mechanism will be directly above the drawing carriage slide rail table 7.

[0045] The electric hoist crane 18 drives the suspension mechanism to descend until the rope of the electric hoist crane 18 is completely released. At this time, the opening of the hook 22 will be below one side of the mandrel mold assembly A. At the same time, the rotary cylinder 21 will drive the hook 22 to rotate, so that the opening of the hook 22 faces the mandrel mold assembly A and is below the mandrel mold assembly A. At this time, the rope of the electric hoist crane 18 is wound, the hook 22 is raised, and the mandrel mold assembly A will enter the opening of the hook 22, thereby lifting the mandrel mold assembly A; after the rope of the electric hoist crane 18 is completely wound, the hook 22 will carry the mandrel mold assembly A on the drawing trolley slide rail platform 7 to move to the top of the cold drawing machine;

[0046] At this time, the electric travel mechanism will carry the suspension mechanism equipped with the mandrel mold assembly A to one side of the mandrel push trolley guide rail platform 8 until the electric travel mechanism triggers the travel switch 12 at one end of the I-beam guide rail 11 close to the mandrel push trolley guide rail platform 8. At this time, the electric travel mechanism will stop moving, and the suspension mechanism will carry the mandrel mold assembly A to the top of the mandrel push trolley guide rail platform 8;

[0047] Let the pushing trolley be located at the end of the mandrel pushing trolley guide rail platform 8 away from the L seat 2, then raise the hydraulic support frame 24 on the mandrel pushing trolley guide rail platform 8, and the electric hoist crane 18 drives the suspension mechanism to descend until the rope of the electric hoist crane 18 is completely released. At this time, the mandrel mold assembly A will be on the pushing trolley and on the hydraulic support frame 24 on the mandrel pushing trolley guide rail platform 8; at the same time, the hook 22 will separate from the mandrel mold assembly A, and at the same time, it will rotate under the drive of the rotating cylinder 21, so that the opening of the hook 22 is staggered with the mandrel mold assembly A, and the rope of the electric hoist crane 18 is reeled; finally, it performs reciprocating operation.

[0048] All kinds of components used in this application document are standard parts, and the specific connection methods of each part adopt mature conventional means such as threads, bolts, nesting, etc. in the prior art. Each structure adopts conventional materials in the prior art, and no specific description is given here.

[0049] To sum up: this intelligent automatic stainless steel tube cold drawing machine, through the overall setting, when the stainless steel tube is cold drawn, the mold at the head end of the mandrel no longer needs to be manually disassembled and replaced. When replacement is needed, the combination of the mandrel and the mold can be automatically transferred from the upper space of the cold drawing machine, thereby making the mold replacement process safer, more convenient and flexible.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent and automated cold drawing machine for stainless steel pipes, characterized in that: It includes a cold drawing machine, wherein: above the cold drawing machine, an I-beam guide rail (11) is fixedly installed through a support frame, two electric traveling mechanisms are rollingly installed on the I-beam guide rail (11), the two electric traveling mechanisms are fixedly connected through a connecting frame (13), an electric hoist crane (18) is fixedly installed on each of the two electric traveling mechanisms, and a suspension mechanism is fixedly installed between the two electric hoist cranes (18); The suspension mechanism includes a cage (19), on both sides of the upper surface of the cage (19), a lifting ring (20) and a rotary cylinder (21) are fixedly installed respectively, on both sides of the lower surface of the cage (19), a hook (22) is rotatably installed, the top end of the hook (22) rotatably passes through the cage (19) and is fixedly connected with the output end of the rotary cylinder (21), the two rotary cylinders (21) are between the two lifting rings (20), and the lifting ring (20) is fixedly connected with the hook of the corresponding electric hoist crane (18); On the bottom surface of the connecting frame (13), an air pump box (23) is fixedly installed, and the rotary cylinder (21) is fixedly connected with the air pump inside the air pump box (23) through an air pipe; Limit switches (12) for restricting the position of the electric traveling mechanism are fixedly installed at both ends of the I-beam guide rail (11) respectively; On one side of the cold drawing machine, a control console is fixedly installed, and a PLC controller for controlling the operation of the whole equipment is fixedly installed inside the control console.

2. The intelligent and automated cold drawing machine for stainless steel pipes according to claim 1, characterized in that: The cold drawing machine includes a die base (1), an L base (2), a hydraulic cylinder base (3), a connecting column (4) and a hydraulic cylinder (5), the die base (1) and the L base (2) are fixedly connected through the connecting column (4), the die base (1) and the hydraulic cylinder base (3) are fixedly connected through the connecting column (4), the die base (1) is between the L base (2) and the hydraulic cylinder base (3), one end of the hydraulic cylinder (5) is fixedly connected with one side of the hydraulic cylinder base (3), and the output end of the hydraulic cylinder (5) slides out from the other side of the hydraulic cylinder base (3).

3. The intelligent and automated cold drawing machine for stainless steel pipes according to claim 2, wherein: A material table (6) is fixedly installed between the die base (1) and the L base (2), and a number of hydraulic support frames (24) are uniformly and fixedly installed on the material table (6).

4. The intelligent and automated stainless steel pipe cold drawing machine according to claim 2, characterized in that: A drawing trolley slide rail table (7) is fixedly installed between the die base (1) and the hydraulic cylinder base (3), and a number of hydraulic support frames (24) are uniformly and fixedly installed on the drawing trolley slide rail table (7).

5. An intelligent and automated cold drawing machine for stainless steel pipes according to claim 2, characterized in that: On the outside of the L base (2), a mandrel pushing trolley guide rail table (8) is fixedly installed, and a number of hydraulic support frames (24) are uniformly and fixedly installed on the mandrel pushing trolley guide rail table (8).

6. An intelligent and automated cold drawing machine for stainless steel pipes according to claim 1, characterized in that: The support frame includes a column (9) and a support arm (10), the top end of the column (9) is fixedly connected with one end of the support arm (10), the support arm (10) straddles above the cold drawing machine, and the I-beam guide rail (11) is fixedly installed on the lower side of the support arm (10).

7. An intelligent and automated cold drawing machine for stainless steel pipes according to claim 6, characterized in that: The electric walking mechanism includes a seat (14), a roller frame (15), rollers (16) and a reduction motor (17). The outer sides of the four corners of the seat (14) are each fixedly installed with a roller frame (15). The inner sides of the other ends of each roller frame (15) are each rotatably installed with a roller (16). The outer side of one of the roller frames (15) is fixedly installed with a reduction motor (17). The output end of the reduction motor (17) is fixedly connected to the roller (16) on this roller frame (15). The roller (16) is in rolling connection with the I-beam guide rail (11). The electric hoist crane (18) is fixedly installed on the lower side of the seat (14).

Images