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CN-224209046-U - Multi-section hollow drawing core rod

CN224209046UCN 224209046 UCN224209046 UCN 224209046UCN-224209046-U

Abstract

The utility model discloses a multi-section hollow drawing core rod, and relates to the technical field of forging core rods. The utility model comprises a plurality of split rods and a plurality of connecting mechanisms, wherein the split rods are linearly distributed, the connecting mechanisms are arranged between the two split rods, the split rods are hollow rod bodies, taper sleeves are integrally arranged at the two ends in the split rods, the small opening ends of the taper sleeves face the end faces of the split rods, positioning grooves are arranged at the inner sides of the two ends of the split rods, the connecting mechanisms comprise base plates, the top ends and the bottom ends of the base plates are respectively provided with a taper plate, double-end lead screws are transversely and rotatably connected in the base plates, guide posts are fixed at the two sides in the base plates, sliding seats are connected to the two thread sections of the double-end lead screws in a threaded manner, and the sliding seats slide along the guide posts. According to the utility model, the core rod is divided into the plurality of hollow split rods, so that the weight reduction effect can be realized, the light weight effect can be realized, the lifting, the mounting and the dismounting are facilitated, the length and the shape of the core rod required by the assembly can be correspondingly improved according to different use requirements, and the application range is increased.

Inventors

  • ZHAO DONG
  • ZHAO YONG
  • BIAN FENG

Assignees

  • 江阴市中岳机锻有限公司

Dates

Publication Date
20260508
Application Date
20250425

Claims (6)

  1. 1. The multi-section hollow drawing core rod is characterized by comprising a plurality of split rods (1) and a plurality of connecting mechanisms (2), wherein the split rods (1) are linearly distributed, and the connecting mechanisms (2) are arranged between the two split rods (1); The split rod (1) is a hollow rod body, taper sleeves (101) are integrally arranged at two ends in the split rod (1), small opening ends of the taper sleeves (101) face the end face of the split rod (1), and positioning grooves (102) are formed in inner sides of two ends of the split rod (1); The connecting mechanism (2) comprises a base plate (201), conical plates (202) are arranged at the top end and the bottom end of the base plate (201), a double-head screw rod (203) is transversely connected in the base plate (201) in a rotating mode, guide posts (204) are fixed on two sides in the base plate (201), sliding seats (205) are connected to two threaded sections of the double-head screw rod (203) in a threaded mode, and the sliding seats (205) slide along the guide posts (204); an arc-shaped seat (206) is fixed on the top surface of the sliding seat (205), and an outer cone section (207) matched with the cone sleeve (101) is integrally arranged on the outer side of the arc-shaped seat (206); a transverse plate (208) which is vertically distributed with the double-end screw rod (203) is fixed in the conical disc (202), a worm (209) is arranged at the middle point of the double-end screw rod (203), a worm wheel (210) is meshed with the outer side of the worm (209), and the worm wheel (210) is fixed between the two transverse plates (208); Both ends of a wheel shaft of the worm wheel (210) are fixed with inner hexagonal ends (211) penetrating through the transverse plate (208), and the transverse plate (208) is fixed with a guide sleeve body (3) sleeved outside the inner hexagonal ends (211); The end faces of two adjacent split rods (1) are concentrically attached, the base disc (201) and the conical disc (202) are arranged in the positioning grooves (102) of the two adjacent split rods (1), and the outer conical sections (207) at the top and the bottom of the sliding seat (205) are attached to the inner inclined surfaces of the adjacent conical sleeves (101) of the two split rods (1) respectively.
  2. 2. The multi-section hollow drawing mandrel as claimed in claim 1, wherein the guide sleeve body (3) comprises a straight cylinder (301), the straight cylinder (301) is fixed on the transverse plate (208), and a cone bucket (302) is arranged at the top end of the straight cylinder (301).
  3. 3. The multi-section hollow drawing mandrel as claimed in claim 2, wherein an inner hexagonal taper sleeve (303) is arranged in the straight cylinder (301), and two ends of the inner hexagonal taper sleeve (303) are respectively connected with the inner hexagonal end head (211) and the cone bucket (302).
  4. 4. The multi-section hollow drawing core rod according to claim 1, wherein the positioning groove (102) comprises a straight groove section and a conical groove section which are sequentially connected, the large opening end of the conical groove section is flush with the end faces of the split rods (1), the base disc (201) is arranged in the straight groove sections of the two split rods (1) in a clearance mode, and the conical disc (202) is arranged in the conical groove section in a clearance mode.
  5. 5. The multi-section hollow drawing mandrel as claimed in claim 1, wherein a plurality of reinforcing ribs (212) are fixed between the inner side of the arc-shaped seat (206) and the sliding seat (205), and between the outer side of the arc-shaped seat (206) and the sliding seat (205).
  6. 6. The multi-section hollow drawing core rod according to claim 1, wherein the outer wall of the split rod (1) is of a conical cylinder surface structure, and the inner cavity of the split rod (1) is of a cylindrical cavity structure.

Description

Multi-section hollow drawing core rod Technical Field The utility model belongs to the technical field of forging core rods, and particularly relates to a multi-section hollow drawing core rod. Background In the drawing process in the forging process, a drawing core rod is needed, and most of traditional core rods are integral core rods and long in length, so that the problems that the traditional core rods are heavy and difficult to install (difficult to hoist, center and disassemble) occur, and the drawing core rod is particularly suitable for large forgings. If the sectional type core rod is designed and assembled, how to connect and fix the two sections is difficult, because the fixing points with limited mounting points cannot be effectively arranged on the inner side of the connecting points, and if the fixing positions are arranged on the outer side of the connecting points, the surface of the core rod can be influenced, the subsequent drawing process is required to ensure the tightness of the positions of the connecting points, if the tightness is poor, the problems of overlarge gaps, looseness, abrasion and the like of the core rod can be influenced, and the safe use of the core rod is influenced. Disclosure of Invention The utility model aims to provide a multi-section hollow drawing core rod, which can play a role in weight reduction and light weight by dividing the core rod into a plurality of hollow split rods, is beneficial to hoisting, mounting and dismounting, can correspondingly assemble the needed core rod length and shape according to different use requirements, and improves the application range. In order to solve the technical problems, the utility model is realized by the following technical scheme: The utility model relates to a multi-section hollow drawing core rod, which comprises a plurality of split rods and a plurality of connecting mechanisms, wherein the split rods are linearly distributed, and the connecting mechanisms are arranged between the two split rods; The split rod is a hollow rod body, taper sleeves are integrally arranged at the two ends in the split rod, the small opening ends of the taper sleeves face the end face of the split rod, and positioning grooves are formed in the inner sides of the two ends of the split rod; The connecting mechanism comprises a base plate, conical plates are arranged at the top end and the bottom end of the base plate, a double-head screw rod is transversely connected in the base plate in a rotating mode, guide posts are fixed on two sides in the base plate, sliding seats are connected to two threaded sections of the double-head screw rod in a threaded mode, and the sliding seats slide along the guide posts; An arc-shaped seat is fixed on the top surface of the sliding seat, and an outer cone section matched with the cone sleeve is integrally arranged on the outer side of the arc-shaped seat; The cone disc is internally fixed with transverse plates which are vertically distributed with the double-head screw rod, a worm is arranged at the middle point of the double-head screw rod, a worm wheel is meshed with the outer side of the worm, and the worm wheel is fixed between the two transverse plates; The two ends of the wheel shaft of the worm wheel are respectively fixed with an inner hexagonal end penetrating through the transverse plate, and the transverse plate is fixed with a guide sleeve body sleeved outside the inner hexagonal end; The end faces of two adjacent split rods are concentrically attached, the base disc and the conical disc are arranged in the positioning grooves of the two adjacent split rods, and the outer conical sections at the top and the bottom of the sliding seat are attached to the inner inclined surfaces of the adjacent conical sleeves of the two split rods respectively. Further, the guide sleeve body comprises a straight cylinder, the straight cylinder is fixed on the transverse plate, and a cone bucket is arranged at the top end of the straight cylinder. Further, an inner hexagonal taper sleeve is arranged in the straight cylinder, and two ends of the inner hexagonal taper sleeve are respectively connected with the inner hexagonal end head and the taper bucket. Further, the constant head tank is including straight slot section and the awl slot section that connects gradually, the big mouth end and the components of a whole that can function independently stick terminal surface parallel and level of awl slot section, the basal disc clearance sets up in the straight slot section of two components of a whole that can function independently sticks, the awl disc clearance sets up in the awl slot section. Further, a plurality of reinforcing ribs are fixed between the inner side of the arc-shaped seat and the sliding seat, and between the outer side of the arc-shaped seat and the sliding seat. Further, the outer wall of the split rod is of a cone-shaped surface structure, and the inner cavity of the split rod is of a cyl