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CN-121988630-A - Bimetal synchronous extension drawing process and equipment for aluminum-clad invar steel

CN121988630ACN 121988630 ACN121988630 ACN 121988630ACN-121988630-A

Abstract

The invention relates to the technical field of metal drawing, in particular to a bimetal synchronous extension drawing process of aluminum-coated invar and equipment thereof, comprising the following steps of firstly, a workpiece penetrating and positioning procedure, wherein the aluminum-coated invar penetrates through a lubrication box and a die cavity of a drawing die to ensure that the workpiece is primarily aligned with the drawing direction; step two, centering and adjusting procedure, namely, controlling the inclined guide groove on the inner wall of the cylinder to drive three groups of slide bars to synchronously retract through the guide blocks, enabling the balls on the positioning plate to be attached to the outer wall of the aluminum-coated invar drawing piece, and completing the coaxial centering and positioning of the workpiece.

Inventors

  • ZHANG ZHIBIN
  • ZHANG KAIYUN
  • WU YANPING
  • WU ZHIQIANG
  • ZHONG BING

Assignees

  • 常州特发华银电线电缆有限公司

Dates

Publication Date
20260508
Application Date
20260403

Claims (10)

  1. 1. The bimetal synchronous extension drawing process of the aluminum-clad invar steel is characterized by comprising the following steps of: firstly, a workpiece penetrating and positioning procedure, namely enabling aluminum coated invar to pass through a lubrication box (13) and a die cavity of a drawing die (12) to ensure that the workpiece is primarily aligned with the drawing direction; A centering and adjusting procedure, wherein a cylinder piston rod drives a sliding seat (27) to slide along a sliding rail (28), so as to drive a control cylinder (22) to axially move outside a rotary cylinder (21), and an inclined guide groove (222) on the inner wall of the control cylinder drives three groups of sliding rods (23) to synchronously retract through a guide block (231), so that balls (25) on a positioning plate (24) are attached to the outer wall of an aluminum-clad invar drawing piece (14), and the coaxial centering and positioning of a workpiece are completed, so that the center of the workpiece is coincident with the center of a drawing die (12); Step three, a lubricating liquid coating preparation procedure, wherein in the centering positioning process, three groups of slide bars (23) synchronously drive three groups of coating heads (31) to be close to the outer wall of a workpiece, so that a coating brush (311) is attached to the surface of the workpiece, then a pressure pump (39) pumps the lubricating liquid in a liquid storage cavity (132) into an annular flow distribution channel (37), and the lubricating liquid is conveyed to the coating heads (31) through a conveying channel (36) and a conveying hose (35); A step four of rotating uniformly, in which a driving motor (32) drives a gear (33) to rotate through a belt pulley group, the gear (33) is meshed with a toothed ring (34) to drive a rotary drum (21) to rotate at a low speed, the rotary drum (21) drives three groups of coating heads (31) to coaxially rotate around a workpiece, and a coating brush (311) uniformly coats lubricating liquid on the outer wall surface of an aluminum-coated invar drawing piece (14); And fifthly, starting a drawing device after the synchronous extension drawing process is finished, and applying axial tension to the aluminum-clad invar drawing piece (14) to enable the workpiece to realize synchronous extension deformation of the aluminum layer and the invar core layer through the drawing die (12) so as to finish drawing processing.
  2. 2. The utility model provides a bimetal synchronous extension drawing equipment of aluminium package invar, its is applied to the bimetal synchronous extension drawing process of aluminium package invar of claim 1, including equipment rack (1), the bottom fixed mounting of equipment rack (1) has bracket (11), the upper end of equipment rack (1) is provided with drawing mould (12) and lubrication box (13), the middle part of drawing mould (12) and lubrication box (13) is inserted jointly and is equipped with aluminium package invar and draws piece (14), its characterized in that: The drawing equipment further comprises a centering positioning mechanism (2) and a coating mechanism (3), wherein the centering positioning mechanism (2) is arranged in the lubricating box (13) and on the left side and used for centering and positioning the drawn aluminum-clad invar drawing piece (14), and the coating mechanism (3) is arranged in the lubricating box (13) and at the upper end and used for coating lubricating liquid on the aluminum-clad invar drawing piece (14).
  3. 3. The bimetal synchronous extension drawing device of aluminum package invar according to claim 2, wherein the centering positioning mechanism (2) comprises a rotary drum (21) rotationally connected inside a lubrication box (13), a control drum (22) is sleeved outside the rotary drum (21), a sliding groove (221) is formed in the inner wall of the control drum (22), two symmetrical groups of guide grooves (222) are formed in the inner wall of the sliding groove (221), the guide grooves (222) are obliquely arranged, guide blocks (231) are slidably connected in the guide grooves (222), the guide blocks (231) are fixedly connected to a sliding rod (23), one end, close to the center of the rotary drum (21), of the sliding rod (23) is inserted into the rotary drum (21) through a through hole (211), and six groups of sliding rods (23) are arranged.
  4. 4. The bimetal synchronous extension drawing device of aluminum-clad invar according to claim 2, wherein a through hole (211) is formed in the rotary drum (21), and a first sealing ring (212) is fixedly installed on the inner wall of the through hole (211).
  5. 5. The bimetal synchronous extending drawing device of aluminum-clad invar according to claim 2, wherein three groups of slide bars (23) are fixedly connected with positioning plates (24) near one end of the center of the rotary drum (21), the three groups of positioning plates (24) are uniformly distributed in circumference, and balls (25) are rotatably connected on one side of the positioning plates (24) near the center of the rotary drum (21).
  6. 6. The bimetal synchronous extension drawing device of aluminum-clad invar according to claim 2, wherein an air cylinder (26) is fixedly installed on the left side of the lubrication box (13), a piston rod of the air cylinder (26) penetrates through the lubrication box (13) and is fixedly connected with a sliding seat (27), the sliding seat (27) is clamped on the control cylinder (22), the upper ends of the sliding seat (27) are slidably connected to two groups of sliding rails (28), and the sliding rails (28) are fixedly installed on the top end of the lubrication box (13).
  7. 7. The bimetal synchronous extending drawing device of aluminum-coated invar according to claim 2, wherein the coating mechanism (3) comprises coating heads (31) arranged inside the rotary drum (21), three groups of coating heads (31) are fixedly arranged on three other groups of sliding rods (23) respectively, the three groups of coating heads (31) are uniformly distributed in a circumference, and a coating brush (311) is fixedly arranged on one side, close to the rotary drum (21), of the coating heads (31).
  8. 8. The bimetal synchronous extension drawing device of the aluminum package invar according to claim 7, wherein a driving motor (32) is fixedly arranged at the upper end of the lubrication box (13), a first belt pulley (321) is fixedly arranged on an output shaft of the driving motor (32), the first belt pulley (321) is connected with a second belt pulley (322) through belt transmission, the second belt pulley (322) penetrates through the lubrication box (13) through a rotating rod and is fixedly connected with a gear (33), the gear (33) is meshed with a toothed ring (34), and the toothed ring (34) is fixedly arranged on the outer side of the rotary drum (21).
  9. 9. The bimetal synchronous extension drawing device of aluminum package invar according to claim 7, wherein the inner space of the lubrication box (13) is divided into a liquid storage cavity (132) and a protection cavity (133) through a partition plate (131), the lubrication liquid is stored in the liquid storage cavity (132), one end of a conveying hose (35) is communicated with the interior of the smearing head (31), the other end of the conveying hose (35) is communicated with a conveying channel (36), the conveying channel (36) is formed in the rotary drum (21), the conveying channel (36) is communicated with a flow distribution channel (37), the flow distribution channel (37) is in an annular arrangement and is formed by combining the partition plate (131) and the rotary drum (21), and gaps at two sides of the flow distribution channel (37) are sealed through two groups of second sealing rings (38).
  10. 10. The bimetal synchronous extending drawing device of aluminum-coated invar according to claim 2, wherein a pressure pump (39) is arranged at the bottom end of the lubrication box (13), the pressure pump (39) is fixedly arranged on the bracket (11), and the pressure pump (39) is used for conveying the lubrication liquid in the liquid storage cavity (132) into the flow distribution channel (37) through a conveying pipe.

Description

Bimetal synchronous extension drawing process and equipment for aluminum-clad invar steel Technical Field The invention relates to the technical field of metal drawing, in particular to a bimetal synchronous extension drawing process of aluminum-clad invar and equipment thereof. Background The aluminum-coated invar is used as a bimetal material formed by compounding an aluminum layer and an invar core layer, has the characteristics of light weight, good conductivity and low expansion coefficient of the invar, and has irreplaceable application value in the fields of electronic information, precise instruments, aerospace and the like. In order to meet the requirements of different application scenes on the dimensional accuracy and performance of the aluminum-clad invar steel material, the aluminum-clad invar steel material is usually subjected to forming treatment through a plastic processing technology, wherein the drawing technology is one of core technologies for producing the aluminum-clad invar steel product because the section size of the material can be effectively controlled and the mechanical properties of the material are improved. In the existing aluminum-coated invar bimetal synchronous extension drawing process, the traditional lubrication mode mostly adopts immersion lubrication, the absorption efficiency of lubricating liquid is low, a large amount of lubricating liquid attached to the surface can be dropped and scattered due to gravity in the process of transferring a workpiece from a liquid pool to a drawing station, meanwhile, the liquid pool is exposed for a long time, so that the volatilization loss of the lubricating liquid is caused, impurities such as metal scraps and oxide skin generated by drawing can be mixed in the lubricating liquid, the lubricating liquid is polluted, frequent whole pool replacement is needed, and batch waste is formed. If the smearing type lubrication is used, a large amount of manual operation is needed due to lack of accurate control means, so that uniformity of a lubricating coating is difficult to ensure, consumption of lubricating liquid and production cost are greatly increased, and pollution to equipment and production environment is easily caused. Therefore, a bimetal synchronous extension drawing process and equipment for aluminum coated invar steel are provided. Disclosure of Invention The invention aims to provide a bimetal synchronous extension drawing process of aluminum-coated invar and equipment thereof, which are used for solving the problems in the background technology. In order to achieve the purpose, the invention provides the following technical scheme that the bimetal synchronous extension drawing process of the aluminum-clad invar comprises the following steps of: the first step, a workpiece penetrating and positioning procedure, wherein aluminum coated invar steel passes through a lubrication box and a die cavity of a drawing die to ensure that the workpiece is preliminarily aligned to the drawing direction; A centering and adjusting procedure, wherein a cylinder piston rod drives a sliding seat to slide along a sliding rail, so as to drive a control cylinder to axially move outside a rotary drum, and an inclined guide groove on the inner wall of the control cylinder drives three groups of sliding rods to synchronously retract through a guide block, so that balls on a positioning plate are attached to the outer wall of an aluminum-coated invar drawing piece, the coaxial centering of a workpiece is completed, and the coincidence with the center of a drawing die is ensured; Step three, a lubricating liquid coating preparation procedure, wherein in the centering positioning process, three groups of slide bars synchronously drive three groups of coating heads to be close to the outer wall of a workpiece, so that a coating brush is attached to the surface of the workpiece, and then a pressure pump pumps the lubricating liquid in a liquid storage cavity into an annular flow distribution channel and conveys the lubricating liquid to the coating heads through a conveying channel and a conveying hose; A step four of rotating the uniform coating process, in which a driving motor drives a gear to rotate through a belt pulley group, the gear meshes with a toothed ring to drive a rotary drum to rotate at a low speed, the rotary drum drives three groups of coating heads to coaxially rotate around a workpiece, and a coating brush uniformly coats lubricating liquid on the outer wall surface of an aluminum-coated invar drawing piece; And fifthly, starting a drawing device after the synchronous extension drawing process is completed, and applying axial tension to the aluminum-clad invar drawing piece to enable the workpiece to realize synchronous extension deformation of the aluminum layer and the invar core layer through the drawing die, thereby completing drawing processing. The utility model provides a bimetal synchronous extension drawing equipment of a