High-applicability cold drawing equipment and application process thereof

Abstract

The invention relates to the technical field of steel pipe cold-drawing machining, and discloses high-applicability cold-drawing equipment and an application process thereof.The high-applicability cold-drawing equipment comprises a base, a traction seat, a cold-drawing die and a hydraulic device, a rail is arranged on the base in the length direction of the base, the traction seat is arranged on the rail in a sliding mode, and the cold-drawing die and the hydraulic device are arranged at the ends of the base correspondingly; a hydraulic device is arranged on the traction base, the traction base is connected with the hydraulic device, a driving block is arranged in the traction base in the axial direction of an inner cavity of the traction base in a sliding mode, an inner abutting pipe and an outer abutting block are coaxially arranged on the side, facing the cold drawing die, of the driving block, the inner abutting pipe is coaxially and fixedly arranged on the side wall of the driving block, and a stretching and supporting mechanism for abutting and supporting the inner wall of a pipe is movably arranged on the inner abutting pipe; the diameter of an inner cavity of the traction base is gradually increased in the traction direction of the pipe, the top of the outer abutting block is slidably arranged on the inner wall of the traction base in the axial direction of the inner abutting pipe, and the side wall of the outer abutting block is slidably arranged on the side wall of the driving block in the diameter direction of the inner abutting pipe. The cold-drawing equipment has the effect of improving the adaptability of the cold-drawing equipment.

Description

Technical Field

[0001] The present application relates to the technical field of metal pipe processing, and in particular to a highly applicable cold drawing device and an application process thereof. Background Art

[0002] In the metal processing industry, cold drawing is one of the important means to improve the mechanical properties of metal pipes. This process changes the diameter or wall thickness of metal pipes by pulling them through specific dies, thereby optimizing the mechanical properties and surface quality of the pipes. With the rapid development of modern industry, the demand for metal pipes is gradually developing towards higher strength and lighter weight, which has also promoted the continuous advancement of cold drawing technology to meet more stringent quality standards and diversified market demands. Cold drawing technology is widely used in aerospace, automobile manufacturing, energy and other fields, significantly improving the reliability and service life of products.

[0003] The traction seat in the existing cold drawing equipment is a key component for shaping metal pipes. This type of device often uses a fixed clamp to firmly grasp one end of the metal pipe to be processed to ensure that the pipe will not fall off during the drawing process. These clamps are usually made of rigid materials and can withstand high tensile forces. Specifically, the existing cold drawing equipment mainly adopts the following methods: First, a fixed claw structure is used to clamp the pipe by mechanical locking; second, a spring clamping structure is used to clamp the pipe by the pressure generated by elastic deformation; third, a clamping mechanism driven by a cylinder or hydraulic cylinder is used to achieve clamping action through air pressure or hydraulic power.

[0004] However, these traditional methods have obvious shortcomings when dealing with thin-walled or large-diameter pipes. Fixed clamps are not flexible enough in controlling the clamping force, and can easily damage the end face of the pipe due to excessive clamping force, or even cause the product to be scrapped. In addition, the scope of application of fixed clamps is limited, and they cannot effectively adapt to metal pipes of different diameters. This not only limits the flexibility of the production process, but also greatly increases the production cost of the company. Therefore, how to design a new cold drawing device that can flexibly cope with metal pipes of different diameters has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] In order to improve the adaptability of cold drawing equipment so that the cold drawing equipment can maintain a good clamping effect when processing metal pipes with different diameters, the present application provides a highly applicable cold drawing equipment and its application process.

[0006] The application provides a highly applicable cold drawing equipment and its application process using the following technical solutions: The traction seat is slidably connected to the track, the cold drawing die and the hydraulic device are respectively arranged at the ends of the base, and the traction seat is connected to the hydraulic device, and the traction seat is slidably connected to a driving block along the axial direction of its inner cavity, and the driving block is coaxially provided with an inner abutment tube and an outer abutment block on the side facing the cold drawing die, the inner abutment tube is coaxially fixed on the side wall of the driving block, and a tensioning mechanism for supporting the inner wall of the pipe is movably provided on the inner abutment tube, the inner cavity diameter of the traction seat gradually increases along the traction direction of the pipe, the top of the outer abutment block is slidably connected to the inner wall of the traction seat along the axial direction of the inner abutment tube, and the side wall is slidably connected to the side wall of the driving block along the diameter direction of the inner abutment tube.

[0007] By adopting the above technical solution, the synergistic effect of the base, traction seat, cold drawing die and hydraulic device enables the traction seat to slide smoothly on the track. At the same time, the combined design of the inner abutment tube and the outer abutment block effectively prevents the pipe from falling off and deforming during the drawing process, thereby improving the stability and efficiency of the cold drawing process. In addition, the design of the tensioning mechanism further enhances the support force of the inner wall of the pipe, avoiding product quality problems caused by insufficient clamping force, thereby achieving effective clamping of metal pipes of different diameters by the cold drawing equipment, significantly improving the adaptability and reliability of the equipment.

[0008] Optionally, a plurality of through holes connected to the inner cavity are distributed along the circumference of the side wall of the inner abutment tube, and the tensioning mechanism includes a guide rod coaxially arranged in the inner abutment tube, a driving sleeve slidably sleeved on the inner abutment tube, a support block slidably connected to the oblique cone surface of the driving sleeve, and a trigger member for driving the driving sleeve to slide. The support block is provided with one corresponding to each through hole, and is radially slidably matched with the through hole along the inner abutment tube. The trigger member is provided on the side wall of the driving block. When the pipe is sleeved on the inner abutment tube, the end of the pipe is in contact with the trigger member.

[0009] By adopting the above technical solution, the cooperation between the through holes opened on the side wall of the inner abutment tube and the tensioning mechanism enables the end of the tube to contact the trigger member when the tube is sleeved on the inner abutment tube, and then the trigger member drives the driving sleeve to slide, so that the support block slides along the radial direction of the inner abutment tube and presses against the inner wall of the tube. This design effectively improves the clamping stability of the tube, avoids the problem of tube slippage caused by insufficient clamping force, and can also adapt to tubes of different diameters, enhancing the applicability and flexibility of the equipment.

[0010] Optionally, an installation cavity is opened in the driving block and connected to the inner abutment tube, and a rotating rod is fixedly arranged in the installation cavity perpendicular to the axial direction of the guide rod. The trigger member includes a push rod slidably arranged on one side of the inner abutment tube parallel to the axial direction of the guide rod and a transmission rod rotatably sleeved on the rotating rod. The push rod slides through the side wall of the inner abutment tube and extends into the installation cavity, and the end of the push rod located in the installation cavity is rotatably connected to one end of the transmission rod through a hinge joint, and the other end of the transmission rod is rotatably connected to the side wall of the driving sleeve through a hinge joint.

[0011] By adopting the above technical solution, when the pipe is sleeved on the inner abutment tube, the end of the pipe contacts the push rod, and the push rod slides along the axial direction of the inner abutment tube after being subjected to pressure, and transmits power to the drive sleeve through the transmission rod, so that the drive sleeve slides along the axial direction of the inner abutment tube, thereby driving the support block to slide along the radial direction of the through hole, thereby achieving effective support for the inner wall of the pipe. This design not only ensures stable clamping of the pipe during the cold drawing process, but also avoids damage to the pipe caused by excessive clamping force, thereby improving the applicability and reliability of the cold drawing equipment.

[0012] Optionally, a locking piece is provided in the installation cavity, a bidirectional screw rod and a smooth rod are provided in parallel on both axial sides of the guide rod, and the bidirectional screw rod is arranged in the installation cavity for rotation along the axial direction perpendicular to the guide rod, and one locking piece is provided corresponding to each thread section of the bidirectional screw rod, and the locking piece includes a push block which is threadedly sleeved on the threaded section of the bidirectional screw rod, and a telescopic rod which is rotatably connected between the end wall of the driving sleeve and the push block through a hinge joint, each of the push blocks is slidably sleeved on the smooth rod, and a servo motor for driving the bidirectional screw rod to rotate is provided on the driving block.

[0013] By adopting the above technical scheme, during the process of the pipe being inserted into the traction seat for preliminary positioning, the push block is in a stationary state, at which time the sliding of the driving sleeve stretches the rod end in the telescopic rod away from the top wall in the tube; when the pipe in the traction seat is initially positioned, the driving sleeve is in a stationary state, at which time the servo motor drives the bidirectional screw to rotate, so that the push block moves along the bidirectional screw, thereby pushing the top wall in the tube of the telescopic rod toward the rod end, until the rod end in the telescopic rod contacts the top wall in the tube, further firmly clamping the pipe on the inner abutment pipe, preventing loosening or sliding during the cold drawing process, and improving the stability of the traction seat in clamping pipes of different diameters.

[0014] Optionally, a rotating motor is arranged on the side wall of the traction seat near the hydraulic device, and a screw is coaxially connected to the output shaft of the rotating motor. An adjustment groove is opened on the side wall of the driving block facing the rotating motor, and the screw is located in the adjustment groove and is rotationally engaged with the adjustment groove through a thread.

[0015] By adopting the above technical solution, the setting of the rotating motor enables the driving block to accurately adjust the position in the traction seat, ensuring the stability and accuracy of the pipe during the cold drawing process, effectively avoiding cold drawing quality problems caused by position deviation, and improving the product qualification rate.

[0016] Optionally, a protection rod is provided between the cold drawing die and the hydraulic device parallel to the length direction of the track, and a plurality of protection rods are provided on both sides of the sliding direction of the traction seat.

[0017] By adopting the above technical solution, the provision of the protection bar can effectively prevent the traction seat from deflecting or deviating from the track during the sliding process, thereby improving the stability and safety of the equipment operation. At the same time, the protection bars are distributed on both sides of the sliding direction of the traction seat, further enhancing the restraint effect on the traction seat, avoiding unexpected situations caused by external factors, and ensuring the smooth progress of the entire cold drawing process.

[0018] Optionally, a plurality of placement racks are distributed along the length direction of the track on one side of the base, each of the placement racks is arranged perpendicular to the length direction of the track, and each of the placement racks is provided with a discharge rod at the end facing the base by pneumatic telescopic means, and a limit plate is vertically provided at the end of the discharge rod opposite to the placement rack.

[0019] By adopting the above technical solution, multiple placement racks distributed along the length of the track on one side of the base can effectively support and store the cold-drawn pipes to avoid deformation or damage caused by pipe accumulation. Each placement rack is set perpendicular to the track to ensure the stability and neatness of the pipes during the placement process. The end of the placement rack facing the base is equipped with a pneumatically telescopic discharge rod, which can be quickly extended and positioned under the pipe after the pipe is demolded, ensuring that the pipe falls smoothly onto the placement rack, thereby improving production efficiency. The ends of the discharge rod facing away from the placement rack are both vertically set limit plates to prevent the pipes from shifting or falling during the placement process, further improving the safety and reliability of the operation.

[0020] An application process of a highly applicable cold drawing device comprises the following steps: S1. Pass the end of the pipe out from the outlet of the cold drawing die; S2. Insert the end of the pipe into the traction seat and put it on the inner abutment pipe; S3, pushing the pipe in the direction toward the driving block, so that the end wall of the pipe contacts the push rod, until the supporting block contacts the inner wall of the pipe tightly; S3, start the servo motor to drive the bidirectional screw to rotate until the rod end in the telescopic rod contacts the top wall in the tube, at which time the support block is kept in a tight state against the inner wall of the pipe; S4, start the rotating motor to work, under the rotation of the screw and the limit of the inner wall of the traction seat, the driving block drives the pipe, the inner pipe and the outer block to slide synchronously towards the direction of the cold drawing die, and the outer block slides along the inner wall of the traction seat with a gradually decreasing inner cavity diameter until the outer block clamps the pipe and positions it on the support block; S5, start the hydraulic device, the piston rod of the hydraulic device retracts, thereby pulling the traction seat holding the pipe to move synchronously along the track until the traction seat slides out of the extension range of the discharge rod, and the discharge rod is pneumatically driven to extend and be located under the pipe; S6. The traction seat clamps the end of the pipe and continues to slide until the pipe is separated from the cold drawing die. Then the traction seat releases the clamp on the pipe, and the pipe falls onto the extended discharge rod. The discharge rod is pneumatically driven to retract the placement rack. Under the restriction of the limit plate, the cold-drawn pipe is placed on several placement racks.

[0021] By adopting the above technical solution, the following effects are achieved: S1. Stable introduction of the pipe end: By passing the pipe end through the outlet of the cold drawing die and inserting it into the traction seat, the accurate position of the pipe is ensured, avoiding processing problems caused by initial position deviation.

[0022] S2. Automatic clamping and adjustment: Push the end of the pipe until it contacts the push rod, triggering the support block to press against the inner wall of the pipe, thus achieving automatic adaptation and stable clamping of pipes of different diameters, and improving the applicability and reliability of the equipment.

[0023] S3. Precisely control the clamping force: Start the servo motor to drive the bidirectional screw to rotate, so that the rod end in the telescopic rod contacts the top wall of the tube, maintaining a constant pressure of the support block on the inner wall of the pipe, preventing damage to the end face of the pipe and ensuring product quality.

[0024] S4. Precise positioning and advancement: Start the rotating motor. Through the rotation of the screw and the limiting effect of the inner wall of the traction seat, the driving block drives the pipe, the inner support pipe and the outer support block to slide synchronously toward the cold drawing die. The outer support block slides along the inner wall of the traction seat with a gradually decreasing inner cavity diameter, and finally the pipe is clamped and positioned on the support block, ensuring the precise processing of the pipe.

[0025] S5. Efficient cold drawing process: Start the hydraulic device, retract the piston rod, pull the traction seat that clamps the pipe to move along the track until the traction seat slides out of the extension range of the feed rod, and pneumatically drive the feed rod to extend and be located under the pipe, realizing continuous cold drawing of the pipe and improving production efficiency.

[0026] S6. Automatic unloading and collection: The traction seat clamps the end of the pipe and keeps sliding until the pipe is separated from the cold drawing die. The traction seat releases the clamp on the pipe, and the pipe falls onto the extended discharge rod. The discharge rod is pneumatically driven to retract into the placement rack. Under the restriction of the limit plate, the cold-drawn pipe is placed on several placement racks, realizing automatic unloading and collection, reducing manual intervention and improving the level of production automation.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the adjustable tensioning mechanism, it realizes the effective clamping of metal pipes of different diameters, avoids the damage of pipe end face caused by excessive clamping force, and improves product quality and production efficiency; 2. The synergistic effect of the inner tube and the outer block keeps the tube in a stable clamping state during the cold drawing process, reducing the risk of the tube slipping during the drawing process and enhancing the reliability of the equipment; 3. The linkage design of the hydraulic device and the traction seat realizes the precise positioning and stable transmission of the pipe, further improving the automation degree and production stability of the cold drawing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0029] Figure 2 It is a cross-sectional view showing the internal structure of the fifth wheel in the embodiment of the present application.

[0030] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0031] Figure 4 It is a cross-sectional view showing the distribution of the support blocks on the inner support tube in the embodiment of the present application.

[0032] Figure 5 It is a schematic diagram showing the positional relationship between the bidirectional lead screw, the polished rod and the drive sleeve in the embodiment of the present application.

[0033] Description of reference numerals: 01. Pipe; 1. Base; 11. Track; 2. Traction seat; 21. Drive block; 211. Adjustment slot; 212. Mounting cavity; 2121. Rotating rod; 22. Rotating motor; 221. Screw; 23. Locking piece; 231. Push block; 242. Telescopic rod; 24. Bidirectional screw; 241. Servo motor; 25. Polish rod; 3. Cold drawing die; 4. Hydraulic device; 5. Protective rod; 6. Placement rack; 61. Unloading rod; 62. Limiting plate; 7. Inner abutment tube; 71. Through hole; 8. Outer abutment block; 9. Tensioning mechanism; 91. Guide rod; 92. Drive sleeve; 93. Abutment block; 94. Trigger; 941. Push rod; 942. Transmission rod. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-5 This application is described in further detail.

[0035] The embodiments of the present application disclose a highly applicable cold drawing device and an application process thereof.

[0036] Reference Figure 1 A highly applicable cold drawing equipment comprises a base 1, a traction seat 2, a cold drawing die 3 and a hydraulic device 4. A track 11 is fixedly arranged on the base 1 along its length direction, the traction seat 2 is slidably connected to the track 11, the cold drawing die 3 and the hydraulic device 4 are respectively fixedly arranged at the ends of the base 1, and the traction seat 2 is fixedly connected to the end of the piston rod telescopically arranged on the hydraulic device 4. A protective rod 5 is fixedly arranged between the cold drawing die 3 and the hydraulic device 4 parallel to the length direction of the track 11, and multiple protective rods 5 are arranged on both sides of the sliding direction of the traction seat 2. In this embodiment, four are taken as an example, and the two protective rods 5 on the same side of the traction seat 2 are respectively close to the top and bottom of the traction seat 2. A plurality of placement racks 6 are distributed and installed on one side of the base 1 along the length direction of the track 11. In this embodiment, four are taken as an example, and each placement rack 6 is arranged perpendicular to the length direction of the track 11. Each placement rack 6 is arranged at the end facing the base 1 by pneumatic telescopic means, and the ends of the drop rod 61 opposite to the placement rack 6 are vertically fixed with a limit plate 62.

[0037] Reference Figure 1, pass the end of the pipe 01 out of the discharge port of the cold drawing die 3, and insert it into the traction seat 2 to clamp and fix it. Start the hydraulic device 4, and the piston rod of the hydraulic device 4 is retracted, thereby pulling the traction seat 2 holding the pipe 01 to move synchronously along the track 11 until the traction seat 2 slides out of the extension range of the blanking rod 61, and the pneumatically driven blanking rod 61 is extended and located below the pipe 01. The traction seat 2 clamps the end of the pipe 01 and continues to slide until the pipe 01 is separated from the cold drawing die 3, and then the traction seat 2 releases the clamping of the pipe 01, and the pipe 01 falls onto the extended blanking rod 61, and the pneumatically driven blanking rod 61 is retracted to the placement rack 6. Under the restriction of the limit plate 62, the pipe 01 after cold drawing is placed on several placement racks 6.

[0038] Reference Figure 1 The die eye of the cold drawing die 3 in this embodiment can be replaced according to the requirements of the pipe 01 with different diameters.

[0039] Reference Figure 2 A driving block 21 is slidably connected to the traction seat 2 along the axial direction of its inner cavity. A rotating motor 22 is fixedly arranged on the side wall of the traction seat 2 close to the hydraulic device 4. A screw 221 is coaxially connected to the output shaft of the rotating motor 22. An adjusting groove 211 is opened on the side wall of the driving block 21 facing the rotating motor 22. The screw 221 is located in the adjusting groove 211 and is rotated with the adjusting groove 211 through a thread.

[0040] Reference Figure 2 and Figure 3 The driving block 21 is coaxially provided with an inner abutment tube 7 and an outer abutment block 8 on one side facing the cold drawing die 3, wherein the inner abutment tube 7 is coaxially fixedly provided on the side wall of the driving block 21. In order to improve the ability of the cold drawing equipment to stably stretch and support the pipes 01 with different inner diameters, a stretching mechanism 9 is movably provided on the inner abutment tube 7 to support the inner wall of the pipe 01.

[0041] Reference Figure 2 , Figure 3 and Figure 4 A plurality of through holes 71 connected to the inner cavity are provided on the side wall of the inner abutment tube 7 along its circumference. In the present embodiment, there are three through holes 71 distributed at equal angles along the circumference of the inner abutment tube 7, and a mounting cavity 212 is provided in the driving block 21 connected to the inner abutment tube 7. The tensioning mechanism 9 comprises a guide rod 91, a driving sleeve 92, a support block 93 and a trigger member 94. The guide rod 91 is coaxially arranged with the inner abutment tube 7 and fixedly arranged on the opposite side walls of the inner abutment tube 7 and the mounting cavity 212. The driving sleeve 92 is located together inside the inner abutment tube 7 and the mounting cavity 212 and is slidably sleeved on the inner abutment tube 7. One support block 93 is provided corresponding to each through hole 71, and is slidably matched with the through hole 71 along the radial direction of the inner abutment tube 7, and the support block 93 is slidably connected to the inclined conical surface of the driving sleeve 92 through an inclined surface match.

[0042] Reference Figure 3 and Figure 5 A rotating rod 2121 is fixedly arranged in the installation cavity 212 perpendicular to the axial direction of the guide rod 91. The trigger member 94 includes a push rod 941 and a transmission rod 942. In this embodiment, two push rods 941 are arranged. The two push rods 941 are vertically distributed on both sides of the axial direction of the guide rod 91. The push rod 941 slides through the side wall of the inner tube 7 parallel to the axial direction of the guide rod 91 and extends into the installation cavity 212. The transmission rod 942 is rotatably sleeved on the rotating rod 2121, and the end of the push rod 941 located in the installation cavity 212 is rotatably connected to one end of the transmission rod 942 through a hinge joint, and the other end of the transmission rod 942 is rotatably connected to the side wall of the drive sleeve 92 through a hinge joint.

[0043] Reference Figure 3 and Figure 5 In order to prevent the tube 01 from loosening or sliding during the cold drawing process, a locking member 23 is provided in the installation cavity 212. A bidirectional screw 24 and a polished rod 25 are provided in parallel on both sides of the axial direction of the guide rod 91. The bidirectional screw 24 is provided in the installation cavity 212 to rotate perpendicularly to the axial direction of the guide rod 91. A servo motor 241 is fixedly provided on the driving block 21. The servo motor 241 is embedded in the inner top wall of the installation cavity 212, and its output shaft is coaxially fixedly connected with the bidirectional screw 24. A locking member 23 is provided for each thread section of the bidirectional screw 24, and the polished rod 25 is fixedly provided in the installation cavity 212.

[0044] Reference Figure 3 and Figure 5 The locking member 23 includes a push block 231 and a telescopic rod 242. The push block 231 is threadedly sleeved on the threaded section of the bidirectional screw rod 24 and is slidably sleeved on the polished rod 25. The telescopic rod 242 is rotatably connected between the end wall of the drive sleeve 92 and the push block 231 through a hinge joint. Reference Figure 2 and Figure 4 The inner diameter of the traction seat 2 gradually increases along the traction direction of the pipe 01, the top of the outer abutment block 8 is slidably connected to the inner wall of the traction seat 2 along the axial direction of the inner abutment tube 7, and the side wall is slidably connected to the side wall of the driving block 21 along the diameter direction of the inner abutment tube 7. In this embodiment, there are three outer abutment blocks 8 distributed at equal angles along the circumference of the inner abutment tube 7.

[0045] Reference Figures 1 to 5 , an application process of a highly applicable cold drawing equipment, comprising the following steps, S1, passing the end of the tube 01 out from the outlet of the cold drawing die 3; S2, insert the end of the pipe 01 into the traction seat 2, and sleeve it on the inner abutment pipe 7; S3, the pipe 01 is pushed in the direction toward the driving block 21, so that the end wall of the pipe 01 abuts against the push rod 941, and the push rod 941 is pushed toward the installation cavity 212. Under the action of the transmission rod 942 rotating around the rotating rod 2121, the driving sleeve 92 slides in the opposite direction. Under the limit of the through hole 71, the sliding driving sleeve 92 drives the supporting block 93 to approach the inner wall of the pipe 01 until it abuts against the inner wall of the pipe 01. S3, start the servo motor 241 to drive the bidirectional screw rod 24 to rotate, and under the limit of the light rod 25, the two push blocks 231 slide relatively until the rod end in the telescopic rod 242 contacts the top wall of the tube, and the support block 93 cannot be retracted into the inner cavity of the tube 7; S4, start the rotating motor 22, and under the rotation of the screw 221 and the limit of the inner wall of the traction seat 2, the driving block 21 drives the tube 01, the inner abutting tube 7 and the outer abutting block 8 to slide synchronously toward the cold drawing die 3, and the outer abutting block 8 slides along the inner wall of the traction seat 2 with a gradually decreasing inner cavity diameter until the outer abutting block 8 clamps the tube 01 and positions it on the abutting block 93; S5, start the hydraulic device 4, the piston rod of the hydraulic device 4 is retracted, thereby pulling the traction seat 2 holding the pipe 01 to move synchronously along the track 11, until the traction seat 2 slides out of the extension range of the discharge rod 61, and the discharge rod 61 is pneumatically driven to extend and be located below the pipe 01; S6, the traction seat 2 clamps the end of the pipe 01 and continues to slide until the pipe 01 is separated from the cold drawing die 3, and then the traction seat 2 releases the clamping of the pipe 01, and the pipe 01 falls onto the extended discharge rod 61, and the discharge rod 61 is pneumatically driven to retract the placement rack 6. Under the restriction of the limit plate 62, the pipe 01 after cold drawing is placed on several placement racks 6.

[0046] The implementation principle of a highly applicable cold drawing equipment and its application process in the embodiment of the present application is as follows: the present embodiment realizes effective clamping of pipes 01 of different diameters by adopting the design of a tensioning mechanism 9 and a driving block 21. The tensioning mechanism 9 can automatically adjust the position of the supporting block 93 when the pipe 01 is sleeved on the inner supporting tube 7 through the coordinated action of the guide rod 91, the driving sleeve 92, the supporting block 93 and the trigger member 94, thereby realizing uniform support of the inner wall of the pipe 01. The driving block 21 can accurately control the position of the supporting block 93 under the drive of the servo motor 241 through the coordinated action of the mounting cavity 212, the rotating shaft, the push rod 941, the transmission rod 942, the bidirectional screw rod 24, the light rod 25, the push block 231, the telescopic rod 242 and the servo motor 241, thereby ensuring the stability and reliability of the pipe 01 during the cold drawing process. This design not only improves the applicability of the equipment, but also reduces the production cost, and improves the quality and market competitiveness of the product.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A highly applicable cold drawing equipment, characterized in that , comprising a base (1), a traction seat (2), a cold drawing die (3) and a hydraulic device (4), wherein the base (1) is provided with a track (11) along its length direction, the traction seat (2) is slidably arranged on the track (11), the cold drawing die (3) and the hydraulic device (4) are respectively arranged at the ends of the base (1), and the traction seat (2) is connected to the hydraulic device (4), and a driving block (21) is slidably arranged in the traction seat (2) along the axial direction of its inner cavity, and the driving block (21) is directed toward the cold drawing die (3) An inner abutment tube (7) and an outer abutment block (8) are coaxially arranged on one side, the inner abutment tube (7) is coaxially fixedly arranged on the side wall of the driving block (21), and a tensioning mechanism (9) for supporting the inner wall of the pipe (01) is movably arranged on the inner abutment tube (7), the inner cavity diameter of the traction seat (2) gradually increases along the traction direction of the pipe (01), the top of the outer abutment block (8) is slidably arranged on the inner wall of the traction seat (2) along the axial direction of the inner abutment tube (7), and the side wall is slidably arranged on the side wall of the driving block (21) along the diameter direction of the inner abutment tube (7).

2. A highly applicable cold drawing equipment according to claim 1, characterized in that The side wall of the inner abutment tube (7) is provided with a plurality of through holes (71) connected to the inner cavity distributed along its circumference. The tensioning mechanism (9) comprises a guide rod (91) coaxially arranged in the inner abutment tube (7), a driving sleeve (92) slidably sleeved on the inner abutment tube (7), a support block (93) slidably connected to the oblique cone surface of the driving sleeve (92), and a trigger member (94) for driving the driving sleeve (92) to slide. One support block (93) is provided for each through hole (71), and the support block (93) is slidably matched with the through hole (71) along the radial direction of the inner abutment tube (7). The trigger member (94) is provided on the side wall of the driving block (21). When the pipe (01) is sleeved on the inner abutment tube (7), the end of the pipe (01) is arranged to contact with the trigger member (94).

3. A highly applicable cold drawing equipment according to claim 2, characterized in that The driving block (21) is provided with an installation cavity (212) connected to the inner abutment tube (7), and a rotating rod (2121) is fixedly arranged in the installation cavity (212) perpendicular to the axial direction of the guide rod (91). The trigger member (94) comprises a push rod (941) slidably arranged on one side of the inner abutment tube (7) parallel to the axial direction of the guide rod (91) and a transmission rod (942) rotatably sleeved on the rotating rod (2121), the push rod (941) slidably penetrates the side wall of the inner abutment tube (7) and extends into the installation cavity (212), and the end of the push rod (941) located in the installation cavity (212) is rotatably connected to one end of the transmission rod (942) through a hinge joint, and the other end of the transmission rod (942) is rotatably connected to the side wall of the driving sleeve (92) through a hinge joint.

4. A highly applicable cold drawing equipment according to claim 3, characterized in that A locking member (23) is arranged in the installation cavity (212), and a bidirectional screw rod (24) and a smooth rod (25) are arranged in parallel on both sides of the axial direction of the guide rod (91), and the bidirectional screw rod (24) is arranged in the installation cavity (212) in an axial rotation direction perpendicular to the guide rod (91), and one locking member (23) is arranged corresponding to each thread section of the bidirectional screw rod (24), and the locking member (23) includes a push block (231) which is threadedly sleeved on the thread section of the bidirectional screw rod (24), and a telescopic rod (242) which is rotatably connected between the end wall of the drive sleeve (92) and the push block (231) through a hinge joint, each of the push blocks (231) is slidably sleeved on the smooth rod (25), and a servo motor (241) for driving the bidirectional screw rod (24) to rotate is arranged on the drive block (21).

5. A highly applicable cold drawing equipment according to claim 1, characterized in that A rotating motor (22) is arranged on the side wall of the traction seat (2) near the hydraulic device (4), and the output shaft of the rotating motor (22) is coaxially connected with a screw rod (221). An adjusting groove (211) is opened on the side wall of the driving block (21) facing the rotating motor (22), and the screw rod (221) is located in the adjusting groove (211) and is rotationally matched with the adjusting groove (211) through a thread.

6. A highly applicable cold drawing equipment according to claim 1, characterized in that A protection rod (5) is provided between the cold drawing die (3) and the hydraulic device (4) in parallel with the length direction of the track (11), and a plurality of protection rods (5) are provided on both sides of the sliding direction of the traction seat (2).

7. A highly applicable cold drawing equipment according to claim 1, characterized in that A plurality of placement racks (6) are distributed along the length direction of the track (11) on one side of the base (1), and each of the placement racks (6) is arranged perpendicular to the length direction of the track (11). A discharge rod (61) is arranged at the end of each placement rack (6) facing the base (1) by pneumatic telescopic means, and a limit plate (62) is vertically arranged at the end of the discharge rod (61) facing away from the placement rack (6).

8. An application process of a highly applicable cold drawing equipment, characterized in that , including the following steps, S1, passing the end of the pipe (01) out from the discharge port of the cold drawing die (3); S2, inserting the end of the pipe (01) into the traction seat (2), and sleeved it on the inner abutment tube (7); S3, pushing the pipe (01) in the direction toward the driving block (21) so that the end wall of the pipe (01) abuts against the push rod (941) until the supporting block (93) abuts against the inner wall of the pipe (01); S3, start the servo motor (241) to drive the bidirectional screw (24) to rotate until the rod end in the telescopic rod (242) contacts the top wall in the tube, and at this time, the support block (93) is kept in a tight state against the inner wall of the pipe (01); S4, start the rotating motor (22), and under the rotation of the screw (221) and the limit of the inner wall of the traction seat (2), the driving block (21) drives the pipe (01), the inner abutting pipe (7) and the outer abutting block (8) to slide synchronously in the direction of the cold drawing die (3), and the outer abutting block (8) slides along the inner wall of the traction seat (2) whose inner cavity diameter gradually decreases until the outer abutting block (8) clamps the pipe (01) and positions it on the abutting block (93); S5, starting the hydraulic device (4), the piston rod of the hydraulic device (4) is retracted, thereby pulling the traction seat (2) holding the pipe (01) to move synchronously along the track (11), until the traction seat (2) slides out of the extension range of the discharge rod (61), and the discharge rod (61) is pneumatically driven to extend and be located below the pipe (01); S6, the traction seat (2) clamps the end of the pipe (01) and continues to slide until the pipe (01) is separated from the cold drawing die (3), and then the traction seat (2) releases the clamping of the pipe (01), and the pipe (01) falls onto the extended discharge rod (61), and the discharge rod (61) is pneumatically driven to retract the placement rack (6). Under the restriction of the limit plate (62), the pipe (01) after cold drawing is placed on a plurality of placement racks (6).

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