CN218487029U

CN218487029U - Blank pressing structure of automobile mold

Info

Publication number: CN218487029U
Application number: CN202223172509.3U
Authority: CN
Inventors: 吴育国; 李庆丰
Original assignee: Wuhan Ruihe New Automation Equipment Co ltd
Current assignee: Wuhan Ruihe New Automation Equipment Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-02-17
Anticipated expiration: 2032-11-29

Abstract

The utility model relates to an automobile stamping die technical field especially relates to an automobile die blank pressing structure. The technical scheme comprises the following steps: including base and lift seat, lift seat swing joint just drives through the pneumatic cylinder in the base upper end, is provided with a set of guide bar between base and the lift seat, and the guide bar is located base and lift seat four corners distribution, and the guide bar pass the lift seat and with lift seat sliding connection, the base upper end is provided with the die, and lift seat bottom central point puts and is provided with the terrace die, and lift seat bottom just sets up with the terrace die corresponding position and has offered and accomodate the groove. The utility model discloses carry out the punching press operation in-process of different orders at terrace die and blank holder, can utilize the locating plate spacing to the terrace die, guarantee that the terrace die possesses sufficient punching press power when stamping forming to can accomplish the punching press of different thickness metal sheets in the car metalwork, improve the practicality of whole blank pressing structure.

Description

Blank pressing structure of automobile mold

Technical Field

The utility model relates to an automobile stamping die technical field especially relates to an automobile die blank pressing structure.

Background

The automobile stamping die is a device for stamping and forming a metal piece in the automobile production process, can stamp a straight metal plate into a desired automobile appearance structure, mainly comprises a female die and a male die, and utilizes a hydraulic cylinder to drive power, wherein the edge pressing of the die is to flatten raised corners in the stamping process.

According to the 'blank holder structure of the automobile die' disclosed as 'CN 213256624U', the blank holder structure is mainly used for carrying out die assembly stamping of a male die and edge stamping of a blank holder separately, so that the situation that when the edge stamping of a metal plate is carried out simultaneously, the situation that the blank holder cannot influence the stamping deformation of the middle position of the metal plate due to the fact that the corners of the metal plate are extruded is avoided, the forming of a workpiece can not be influenced by the blank holder, however, in the process of asynchronous stamping, the male die is stretched and contracted to mainly enable the metal plate to be supported by a spring, no positioning structure exists, in the process of pressing down, a hydraulic cylinder mainly pushes a lifting seat to descend, the relative position fixing of the male die and the lifting seat is only supported by the spring, therefore, when the thicker metal plate is stamped, the stamping force required for deforming the metal plate is larger, the spring cannot keep the position fixing between the lifting seat and the male die, the stamping and blank holder cannot be carried out, and meanwhile, in the die stamping operation of the automobile parts, different automobile parts, the stamping parts often need to be stamped and manufactured by metal plates with different thicknesses, so that the whole blank holder structure has certain limitation, and the sequential stamping force is larger than the pressure required by the spring, and the sequential stamping force of the stamping of the metal plate can be realized.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at the problem that exists among the background art, provide an automobile mould blank pressing structure that can stabilize successively punching press.

The technical scheme of the utility model: the utility model provides an auto mold blank pressing structure, includes base and lift seat, lift seat swing joint just drives in the base upper end through the pneumatic cylinder, be provided with a set of guide bar between base and the lift seat, the guide bar is located base and lift seat four corners distribution, the guide bar pass the lift seat and with lift seat sliding connection, the base upper end is provided with the die, lift seat bottom central point puts and is provided with the terrace die, the lift seat bottom just sets up with the terrace die corresponding position and has offered and accomodate the groove, accomodate the inslot lateral wall and be provided with positioning mechanism with terrace die upper end alignment position, the lift seat bottom just is located and accomodates the peripheral fixedly connected with blank pressing strip in groove.

Preferably, the middle position of the side wall at the upper end of the accommodating groove is fixedly connected with a limiting rod, the upper end of the male die is provided with a limiting groove corresponding to the limiting rod, and the bottom of the limiting rod is connected in the limiting groove in a sliding manner, so that the male die is guaranteed to vertically move up and down.

Preferably, positioning mechanism includes the locating plate, locating plate swing joint accomodates the groove lateral wall, and is located the terrace die upper end and aligns position symmetric distribution, accomodate the groove lateral wall and seted up flexible groove with the corresponding position of locating plate, one end sliding connection is kept away from mutually in flexible inslot to the locating plate, the locating plate is located the outer one end of flexible groove and offsets with the terrace die top.

Preferably, the flexible inslot internal rotation is connected with a pair of threaded rod, the equal threaded connection of threaded rod tip is in the locating plate, on the threaded rod and with guide bar alignment position fixedly connected with drive gear, the guide bar lateral wall just has seted up the mounting groove with the corresponding position of drive gear, fixedly connected with toothed plate in the mounting groove.

Preferably, the flexible groove lateral wall just is located and is provided with the spread groove between drive gear and the gear plate, the spread groove internal rotation is connected with drive gear, the drive gear both ends respectively with gear plate and drive gear meshing.

Preferably, the limiting plate of gag lever post bottom fixedly connected with and spacing groove looks adaptation, install reset spring between terrace die upper end and the groove upper end lateral wall of accomodating, and be located the gag lever post outside, the limiting plate can be spacing to the terrace die downstream, avoids the terrace die to drop from accomodating the inslot.

Compared with the prior art, the utility model discloses following profitable technological effect has: in the process of carrying out stamping operation in different sequences on the male die and the blank holder, the positioning plate can be used for limiting the male die, and the male die is guaranteed to have enough stamping force when being stamped, so that stamping of metal plates with different thicknesses in the automobile metal part can be completed, and the practicability of the whole blank holder structure is improved.

Drawings

FIG. 1 is a front sectional structure of the present invention;

FIG. 2 is a schematic view of a top-down cutting structure of the lifting seat of the present invention;

fig. 3 is a schematic view of the connection structure between the guide rod and the transmission gear of the present invention.

Reference numerals: 1. a base; 11. a female die; 2. a lifting seat; 21. a storage groove; 22. a male die; 23. a limiting rod; 24. a limiting groove; 25. edge pressing strips; 3. a guide bar; 4. a hydraulic cylinder; 5. a positioning mechanism; 51. positioning a plate; 52. a telescopic groove; 53. a threaded rod; 54. a drive gear; 55. a transmission gear; 56. mounting grooves; 57. a gear plate.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-3, the utility model provides an automobile mold blank holder structure, including base 1 and

elevating platform

2, 2 swing joint of elevating platform just drives through pneumatic cylinder 4 in base 1 upper end, be provided with a set of guide bar 3 between base 1 and the elevating platform 2, guide bar 3 is located

base

1 and 2 four corners of elevating platform and distributes, guide bar 3 passes elevating platform 2 and with 2 sliding connection of elevating platform, base 1 upper end is provided with die 11, 2 bottom central point of elevating platform puts and is provided with terrace die 22, 2 bottom of elevating platform just sets up with terrace die 22 corresponding position and has accommodated groove 21, it just aligns the position with terrace die 22 upper end and is provided with positioning mechanism 5 to accommodate inslot 21 inside wall, 2 bottom of elevating platform just is located and accommodates groove 21 peripheral fixedly connected with blank holder 25, it has spacing rod 23 to accommodate inslot 21 upper end lateral wall intermediate position fixedly connected with gag lever 23, terrace die 22 upper end just has seted up spacing groove 24 with the corresponding position of gag lever 23, sliding connection is in spacing rod 24 bottom the gag lever 23, spacing rod 23 bottom fixedly connected with the adaptation of spacing rod 23, spacing rod 23 is located the spacing groove and is accommodated outside between the lateral wall and the terrace die 23.

The positioning mechanism 5 comprises a positioning plate 51, the positioning plate 51 is movably connected to the side wall of the accommodating groove 21 and symmetrically distributed at the aligned position of the upper end of the male die 22, a telescopic groove 52 is formed in the side wall of the accommodating groove 21 and at the position corresponding to the positioning plate 51, one end of the positioning plate 51 far away from the positioning plate is slidably connected in the telescopic groove 52, one end of the positioning plate 51 outside the telescopic groove 52 abuts against the top of the male die 22, a pair of threaded rods 53 are rotatably connected to the side wall of the telescopic groove 52, the end parts of the threaded rods 53 are all in threaded connection with the positioning plate 51, a driving gear 54 is fixedly connected to the threaded rods 53 and at the aligned position with the guide rod 3, a mounting groove 56 is formed in the side wall of the guide rod 3 and at the position corresponding to the driving gear 54, a gear plate 57 is fixedly connected to the side wall of the telescopic groove 52 and between the driving gear 54 and the gear plate 57, a transmission gear 55 is rotatably connected to the side wall of the mounting groove, two ends of the transmission gear 55 are respectively engaged with the gear plate 57 and the driving gear 54, the lifting seat 2 moves downwards, the transmission gear 55 can roll on the gear plate 57, the transmission groove, and can rotate the transmission gear 55 at the same time, the positioning plate 51 can drive the lifting seat 2 to move up and down, and move up and down in the sliding movement process of the positioning plate 51.

In this embodiment, the whole apparatus is first connected to an external power source, and then a metal plate is placed on the upper end of the female mold 11, and the lifting seat 2 is driven to move downwards by the driving of the hydraulic cylinder 4, finally the punch forming of the metal plate is realized, meanwhile, the blank pressing operation of the formed workpiece can be carried out by the blank pressing strip 25, in the process, the lifting seat 2 moves downwards, so that the transmission gear 55 can roll on the gear plate 57, and simultaneously, the transmission gear 55 can rotate in the connecting groove, under the transmission of the driving gear 54, the threaded rod 53 can be driven to rotate, so that the positioning plate 51 can extend and retract in the extension groove 52, therefore, during the up-and-down movement of the lifting seat 2, the positioning plate 51 can be driven to slide, when the lower end of the male die 22 abuts against the metal plate, one end of the positioning plate 51, which is close to the male die, abuts against the side wall of the upper end of the male die 22, so that the male die 22 and the lifting seat 2 can be fixed relatively, the metal plate can be stamped, the lifting seat 2 can continuously descend, and when the stamping operation of the metal plate is completed, the positioning plate 51 will move towards the far side continuously in the process, and all will be received in the telescopic groove 52 at the end of punching, so that the upper end of the punch 22 can move towards the receiving groove 21, meanwhile, the lifting seat 2 is continuously lowered, the edge pressing strip 25 can be utilized to perform stamping operation on the edge corner of the formed metal plate, so that in the metal plate forming process, the situation that its metal sheet can not appear being extrudeed, simultaneously at this in-process, utilize locating plate 51 to stop terrace die 22 to receiving the interior slip direction of groove 21, guarantee that the stamping force that pneumatic cylinder 4 applyed can transmit on terrace die 22 completely, even when the thicker car metal sheet of punching press, still can accomplish corresponding punching press operation.

The above embodiments are merely some preferred embodiments of the present invention, and many alternative modifications and combinations can be made to the above embodiments by those skilled in the art based on the technical solution of the present invention and the related teachings of the above embodiments.

Claims

1. The utility model provides an automobile mold blank pressing structure, includes base (1) and lift seat (2), lift seat (2) swing joint just drives its characterized in that through pneumatic cylinder (4) in base (1) upper end: be provided with a set of guide bar (3) between base (1) and lift seat (2), guide bar (3) are located base (1) and lift seat (2) four corners and distribute, guide bar (3) pass lift seat (2) and with lift seat (2) sliding connection, base (1) upper end is provided with die (11), lift seat (2) bottom central point puts and is provided with terrace die (22), lift seat (2) bottom just is established with terrace die (22) corresponding position and has been offered and accomodate groove (21), accomodate groove (21) inside wall and be provided with positioning mechanism (5) with terrace die (22) upper end alignment position, lift seat (2) bottom just is located and accomodate groove (21) peripheral fixedly connected with blank holder strip (25).

2. The automotive mold blank holder structure according to claim 1, wherein a limiting rod (23) is fixedly connected to a middle position of the side wall of the upper end of the accommodating groove (21), a limiting groove (24) is formed in the upper end of the male mold (22) and corresponds to the limiting rod (23), and the bottom of the limiting rod (23) is slidably connected in the limiting groove (24).

3. The automotive mold blank holder structure according to claim 1, wherein the positioning mechanism (5) comprises a positioning plate (51), the positioning plate (51) is movably connected to a side wall of the accommodating groove (21) and is symmetrically distributed at an alignment position of the upper end of the male mold (22), a telescopic groove (52) is formed in the side wall of the accommodating groove (21) and corresponds to the positioning plate (51), one end of the positioning plate (51) far away from the positioning plate is slidably connected in the telescopic groove (52), and one end of the positioning plate (51) located outside the telescopic groove (52) abuts against the top of the male mold (22).

4. The automobile mold blank holder structure according to claim 3, wherein a pair of threaded rods (53) are rotatably connected in the telescopic slots (52), the ends of the threaded rods (53) are all screwed in the positioning plate (51), a driving gear (54) is fixedly connected to the threaded rods (53) at a position aligned with the guide rods (3), a mounting groove (56) is formed in the side wall of each guide rod (3) and corresponds to the corresponding driving gear (54), and a gear plate (57) is fixedly connected to the inside of each mounting groove (56).

5. The automotive mold blank holder structure according to claim 4, wherein a connecting groove is formed in the side wall of the telescopic groove (52) and located between the driving gear (54) and the gear plate (57), a transmission gear (55) is rotatably connected in the connecting groove, and two ends of the transmission gear (55) are respectively meshed with the gear plate (57) and the driving gear (54).

6. The automotive mold blank holder structure according to claim 2, wherein a limiting plate matched with the limiting groove (24) is fixedly connected to the bottom of the limiting rod (23), and a return spring is installed between the upper end of the male mold (22) and the side wall of the upper end of the accommodating groove (21) and is located outside the limiting rod (23).