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CN-224222351-U - Auxiliary fixture for replacing inner bushing of cold-drawn steel drawing die

CN224222351UCN 224222351 UCN224222351 UCN 224222351UCN-224222351-U

Abstract

The utility model discloses an auxiliary tool for replacing an inner bushing of a cold-drawn steel drawing die, which is arranged at a drawing station and comprises a die mounting seat, a driving device, a limiting device and a pressing block, wherein the die mounting seat is used for mounting the drawing die, the die is rotationally connected relative to the die mounting seat so that the drawing die can rotate between the horizontal direction and the vertical direction, the driving device is arranged on the die mounting seat and used for driving the die to rotate, the limiting device is arranged on the die mounting seat and used for limiting the die so that the drawing die can ensure the horizontal state or the vertical state, the pressing block is driven by a first telescopic device to do telescopic motion along the vertical direction so as to mount the inner bushing to the drawing die, and the pressing block is driven by a second telescopic device to do telescopic motion along the vertical direction so as to separate the inner bushing from the drawing die, so that the step of replacing the inner bushing is simplified, the time is saved, and the working efficiency is improved.

Inventors

  • LI DAOCHENG
  • SHEN XUELIN
  • PENG DEQUAN
  • Dai Tonglin

Assignees

  • 安徽苏玛金属制品有限公司

Dates

Publication Date
20260512
Application Date
20250521

Claims (9)

  1. 1. Auxiliary fixtures that cold-drawing steel drawing die changed inner liner, its characterized in that sets up in drawing the station, includes: The die mounting seat (1) is used for mounting a die (11), and the die (11) is rotationally connected relative to the die mounting seat (1) so that the die (11) can rotate between a horizontal direction and a vertical direction; The driving device (2) is arranged on the die mounting seat (1) and is used for driving the die (11) to rotate; The limiting device (3) is arranged on the die mounting seat (1) and is used for limiting the die (11) so that the die (11) can be in a horizontal state or a vertical state; A lower pressing block (41), wherein the lower pressing block (41) is driven by a first telescopic device (42) to perform telescopic motion along the vertical direction so as to mount an inner bushing (12) to the die (11); and the jacking block (51) drives the lower pressing block (41) to do telescopic motion along the vertical direction by the second telescopic device (52) so as to separate the inner bushing (12) from the die (11).
  2. 2. The auxiliary tool for replacing an inner bushing of a cold drawing steel die according to claim 1, wherein two opposite sides of the die (11) are respectively provided with a rotating shaft (24), and a rotating shaft seat (21) for respectively rotating the rotating shafts (24) is arranged at the die mounting seat (1); The driving device (2) comprises a driving motor (22), and the driving motor (22) drives one rotating shaft (24) to rotate through a reduction gear set (23).
  3. 3. Auxiliary tool for replacing an inner bushing of a cold-drawn steel drawing die according to claim 2, characterized in that said die (11) has the shape of a rectangular body; The limiting device (3) comprises a limiting plate (31) and a first hydraulic telescopic rod (32), wherein the movable end of the first hydraulic telescopic rod (32) is connected with the limiting plate (31), the limiting plate (31) is arranged below the die (11), and the first hydraulic telescopic rod (32) is vertically arranged and used for driving the limiting plate (31) to do lifting movement, so that the limiting plate (31) is abutted with the bottom of the die (11) to limit the die (11).
  4. 4. An auxiliary tool for replacing an inner bushing of a cold-drawn steel drawing die according to claim 3, wherein a through hole (33) is formed in the middle of the limiting plate (31), the through hole (33) provides space for expansion and contraction of the jacking block (51), and the first hydraulic expansion link (32) is provided with four groups which are respectively located at four corners of the limiting plate (31).
  5. 5. The auxiliary fixture for replacing an inner bushing of a cold-drawn steel drawing die according to claim 1, wherein a portal frame (14) is arranged above the die (11) on the die mounting base (1), the first telescopic device (42) is arranged on the portal frame (14), the position of the first telescopic device (42) is overlapped with the axis position of the die (11) in a vertical state, and the pressing block (41) is arranged at the movable end of the first telescopic device (42).
  6. 6. The auxiliary fixture for replacing an inner bushing of a cold drawing steel drawing die according to claim 4, wherein the second telescopic device (52) is vertically arranged at the die mounting seat (1) and is positioned right below the through hole (33), and the jacking block (51) is arranged at the movable end of the second telescopic device (52).
  7. 7. Auxiliary tool for replacing an inner bushing of a cold drawn steel die according to claim 6, characterized in that said first telescopic means (42) and said second telescopic means (52) are hydraulic telescopic rods.
  8. 8. The auxiliary tool for replacing an inner bushing of a cold drawn steel drawing die according to claim 1, further comprising a spraying device (6), wherein a spray head (61) of the spraying device (6) is driven by the second telescopic device (52) to move in a vertical direction for moving inside the inner bushing (12) and spraying cold water on the inner wall of the inner bushing (12) before separating the inner bushing (12) so that the inner bushing (12) can be contracted and separated from the die (11).
  9. 9. The auxiliary fixture for replacing an inner bushing of a cold drawing steel drawing die according to claim 8, wherein the spraying device (6) comprises a spray head (61), a water pipe (62), a water pump (64) and a water storage tank (63), the water pipe (62) is connected with the water storage tank (63) and the spray head (61), the spray head (61) is provided with a plurality of groups, the spray heads (61) are arranged at the top of the pressing block (41) at equal intervals in a circumferential manner, and the spraying direction of the spray head (61) faces the inner wall of the inner bushing (12).

Description

Auxiliary fixture for replacing inner bushing of cold-drawn steel drawing die Technical Field The utility model relates to the technical field of steel cold working, in particular to an auxiliary tool for replacing an inner bushing of a cold-drawn steel drawing die. Background In the production process of cold drawn steel, reducing drawing treatment is often required to be carried out on steel materials so as to obtain products with different specifications. In the drawing process, steel can rub with the inner wall of the die, and after long-time use, the inner wall of the die can be worn, so that the inner diameter size of the die is changed, and the precision and quality of a cold drawn steel product are affected. Therefore, when the inner bushing is used as a vulnerable part of the die, the original die is reserved and the inner bushing is replaced when the die is worn, so that the cost is saved. The inner bushing is tightly attached to the die, so that the inner bushing can be detached by means of a tool, the die is detached from the drawing station firstly in the conventional operation, then the die is sent to special equipment for replacing the inner bushing, and then the die is installed to the drawing station, and the whole process takes a long time to affect the production efficiency. Disclosure of utility model The utility model aims to provide an auxiliary tool for replacing an inner bushing of a cold-drawn steel drawing die, so as to solve the technical problems in the prior art. In order to solve the technical problems, the utility model specifically provides the technical scheme that an auxiliary tool for replacing an inner bushing of a cold-drawn steel drawing die is arranged at a drawing station and comprises the following components: The device comprises a die mounting seat, a driving device, a limiting device, a pressing block and a jacking block, wherein the die mounting seat is used for mounting a die, the die is rotationally connected relative to the die mounting seat, so that the die can rotate between a horizontal direction and a vertical direction, the driving device is arranged on the die mounting seat and used for driving the die to rotate, the limiting device is arranged on the die mounting seat and used for limiting the die so that the die can guarantee a horizontal state or a vertical state, the pressing block is driven by a first telescopic device to do telescopic motion along the vertical direction so as to mount an inner bushing to the die, and the pressing block is driven by a second telescopic device to do telescopic motion along the vertical direction so as to separate the inner bushing from the die. Further, the two opposite sides of the die are respectively provided with a rotating shaft, the die mounting seat is provided with rotating shaft seats for the rotating shafts to rotate, and the driving device comprises a driving motor which drives one of the rotating shafts to rotate through a bevel gear set. Further, the die is rectangular in shape, the limiting device comprises a limiting plate and a first hydraulic telescopic rod, the movable end of the first hydraulic telescopic rod is connected with the limiting plate, the limiting plate is arranged below the die, and the first hydraulic telescopic rod is vertically arranged and used for driving the limiting plate to do lifting movement, so that the limiting plate is abutted to the bottom of the die to limit the die. Further, the intermediate position of limiting plate is opened there is the through-hole, the through-hole is for the flexible space that provides of jacking piece, just first hydraulic telescoping rod is equipped with four groups, is located respectively four corners of limiting plate. Further, the die mounting seat is arranged above the die and is provided with a portal frame, the first telescopic device is arranged on the portal frame, the position of the first telescopic device is overlapped with the axis position of the die in a vertical state, and the pressing block is arranged at the movable end of the first telescopic device. Further, the second telescopic device is vertically arranged at the die mounting seat and is positioned right below the through hole, and the jacking block is arranged at the movable end of the second telescopic device. Further, the first telescopic device and the second telescopic device are hydraulic telescopic rods. The spray head of the spray device is driven by the second telescopic device to move along the vertical direction, is used for moving into the inner bushing before separating the inner bushing, and sprays cold water on the inner wall of the inner bushing so that the inner bushing can be contracted and separated from the die. Further, spray set includes shower nozzle, water pipe, water pump and storage water tank, water piping connection storage water tank and shower nozzle, the shower nozzle is equipped with the multiunit, multiunit the equidistant circumference s