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CN-224222547-U - Pneumatic positioning bending machine pressing mechanism

CN224222547UCN 224222547 UCN224222547 UCN 224222547UCN-224222547-U

Abstract

The utility model discloses a pneumatic positioning bending machine pressing mechanism which comprises a pressing die, a mounting seat, a positioning mechanism and a driving device, wherein the mounting seat is provided with a positioning cavity with an opening at the lower end, the pressing die is arranged at the lower end of the mounting seat and is positioned at the lower side of the positioning cavity, the positioning mechanism comprises a positioning piece, an air bag and an inflation exhaust device, the positioning piece is movably arranged in the positioning cavity, the positioning piece is exposed out of the positioning cavity from the opening at the lower end, the air bag is arranged at the upper end of the positioning piece, the mounting seat is provided with an avoidance opening, the inflation exhaust device is provided with an air pipe, the air pipe enters the positioning cavity from the avoidance opening and is connected with the air bag, and the pressing die is provided with a groove.

Inventors

  • LIU WANLIN
  • HU DAIFENG

Assignees

  • 东锻机械(广东)有限公司

Dates

Publication Date
20260512
Application Date
20240710

Claims (5)

  1. 1. A pressing mechanism of a pneumatic positioning bending machine comprises a pressing die, an installation seat and a driving device, wherein the pressing die is provided with a plurality of pressing dies which are detachably arranged at the lower end of the installation seat, the driving device is in driving connection with the installation seat to control the installation seat to ascend or descend, so that the pressing and the positioning of the pressing die on a workpiece are realized, and the pneumatic positioning bending machine is characterized in that: the device also comprises a positioning mechanism, wherein the positioning mechanism comprises a positioning piece, an air bag and an inflation and exhaust device; The mounting seat is provided with a positioning cavity with an opening at the lower end, and the pressing die is positioned at the lower side of the positioning cavity; the outer side of the pressing die is provided with a first installation part which transversely extends towards the installation seat, the installation seat is correspondingly provided with a first installation groove, and the first installation part is transversely positioned in the first installation groove; the outer side of the mounting seat is provided with a second mounting part which transversely extends towards the pressing die, the upper end of the pressing die is provided with a second mounting groove, the second mounting part is transversely positioned in the second mounting groove, the first mounting groove is positioned below the second mounting part, and the positioning cavity is positioned between the first mounting groove and the second mounting part; The air bag is arranged at the upper end of the positioning piece and is positioned in the positioning cavity, the positioning piece can be arranged in a vertically movable mode, the lower end of the positioning piece is exposed out of the positioning cavity from the opening at the lower end, limiting parts used for limiting the vertical movement in the positioning cavity are arranged at the two ends of the positioning piece, positioning steps are arranged on the inner wall of the positioning cavity, the lower end of the limiting parts are in contact with the upper ends of the positioning steps so as to realize the movable limiting of the positioning piece in the positioning cavity, the air charging and exhausting device is arranged outside the mounting seat, an avoidance opening is formed in the outer side of the mounting seat and corresponds to the positioning cavity, the air charging and exhausting device is provided with an air pipe, the air pipe enters the positioning cavity from the avoidance opening and is connected with the air bag, the lower end of the positioning piece is provided with a positioning part, and the upper end of the pressing die is provided with a groove, and the air bag is inflated to push the positioning piece to move downwards so that the positioning part enters the groove.
  2. 2. The bending machine pressing mechanism for pneumatic positioning according to claim 1, wherein the positioning part is of a V-shaped structure which is gradually reduced from top to bottom, and the corresponding groove is a V-shaped groove.
  3. 3. A pneumatically positioned crimping machine hold-down mechanism as claimed in claim 2 wherein the recess has a height less than the positioning portion.
  4. 4. The bending machine pressing mechanism for pneumatic positioning as claimed in claim 1, wherein the positioning piece is of a T-shaped structure.
  5. 5. The bending machine pressing mechanism for pneumatic positioning as claimed in claim 1, wherein the positioning pieces and the air bags are arranged at intervals along the length extension direction of the positioning cavity.

Description

Pneumatic positioning bending machine pressing mechanism Technical Field The utility model relates to the technical field of bending machines, in particular to a pneumatically positioned bending machine pressing mechanism. Background At present, along with the development of economy and the continuous improvement of living standard, the field of plate use is also more and more extensive, the product of plate processing is also widely used in people's life, from car plate to computer machine case etc. to home appliances from network communication, plate structural style is various, and plate processing uses, it is according to the demand of product, need carry out bending shaping many times to the panel beating, the size is difficult to manage and control, the technology is complicated, simultaneously, the processing of plate adopts the bender to carry out bending operation generally, the bender is a machine that can bend the plate, traditional bender is manual, the machine structure is complicated, the operation is heavy, production efficiency is low, the process time is long, the cost is high, can not satisfy user's user demand. Later, an automatic bending machine appears on the market, which generally comprises a positioning machine table, a pressing device and a bending device, wherein a plate is placed on the positioning machine table, the plate is pressed and fixed by the pressing device, the plate is bent by the bending device, a plurality of pressing dies are required to be assembled by the pressing device corresponding to the length of a workpiece due to different pressing and positioning lengths of the workpiece, so that the pressing force of the pressing device on the workpiece is ensured to be uniform, the bending quality of the workpiece is ensured, but the existing bending machine pressing device is poor in structural design, the plurality of pressing dies are arranged on the pressing device one by one, the assembling displacement of part of pressing dies deviates from the assembling positions of other pressing dies, the forming quality of the workpiece is influenced by the pressing dies with the deviation of the positions, and the phenomenon that the pressing dies with the deviation of the assembling positions fall off from the pressing device is possible, so that the using stability of the pressing device is reduced, the practicability is not strong, and the application range is small. Therefore, a new technical solution is needed to solve the above problems. Disclosure of utility model In view of the above, the present utility model aims at overcoming the drawbacks of the prior art, and its main objective is to provide a pneumatic positioning press-holding mechanism for a bending machine, which uses the inflation of an air bag to push a positioning member to hold a press die for positioning, and matches with the setting of a positioning groove, so as to facilitate the matching positioning between the positioning member and the press die, ensure the accurate mounting position of the press die, ensure the assembly effect of the press die on a mounting seat, improve the stability of the mechanism, and have strong practicability and wide application range. In order to achieve the above purpose, the present utility model adopts the following technical scheme: A pressing mechanism of a pneumatic positioning bending machine comprises a pressing die, an installation seat and a driving device, wherein the pressing die is provided with a plurality of pressing dies which are detachably arranged at the lower end of the installation seat, the driving device is in driving connection with the installation seat to control the installation seat to ascend or descend, so that the pressing and the positioning of the pressing die on a workpiece are realized, and the pneumatic positioning bending machine is characterized in that: the device also comprises a positioning mechanism, wherein the positioning mechanism comprises a positioning piece, an air bag and an inflation and exhaust device; The mounting seat is provided with a positioning cavity with an opening at the lower end, and the pressing die is positioned at the lower side of the positioning cavity; the outer side of the pressing die is provided with a first installation part which transversely extends towards the installation seat, the installation seat is correspondingly provided with a first installation groove, and the first installation part is transversely positioned in the first installation groove; the outer side of the mounting seat is provided with a second mounting part which transversely extends towards the pressing die, the upper end of the pressing die is provided with a second mounting groove, the second mounting part is transversely positioned in the second mounting groove, the first mounting groove is positioned below the second mounting part, and the positioning cavity is positioned between the first mounting groove and the second mounti