CN218015198U

CN218015198U - Punching die for lower female hinge of rear car door

Info

Publication number: CN218015198U
Application number: CN202222404129.1U
Authority: CN
Inventors: 陈明果; 周润国
Original assignee: Chongqing Jianggen Machinery Co ltd
Current assignee: Chongqing Jianggen Machinery Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2022-12-13
Anticipated expiration: 2032-09-09

Abstract

The utility model relates to an auto-parts mould technical field specifically is cloudy hinge cut-out press under back door, including cope match-plate pattern and lower bolster. The bottom plate surface of the upper template is fixedly provided with two punches, two oblique wedge slotting tools and a limiting surface locating block, the limiting surface locating block is positioned below the punches, the two oblique wedge slotting tools are positioned at two sides of the limiting surface locating block, and the inner side walls of the oblique wedge slotting tools are provided with oblique slotting surfaces a; and a lower die insert is arranged at the cavity of the female die, and a set of side punching hole structure is respectively arranged at two sides of the cavity of the female die. The utility model discloses reduced workman's intensity of labour and improved production efficiency, later maintenance also only needs go on to the lower mould mold insert, has reduced the consumption and the cost input of mould raw and other materials, has reduced manufacturing cost and has improved the finished product qualification rate.

Description

Punching die for lower female hinge of rear car door

Technical Field

The utility model relates to an auto-parts mould technical field especially relates to cloudy hinge cut-out press under back door.

Background

As shown in fig. 1, in a machining process of a rear vehicle door lower female hinge product for an automobile, generally, after a plate is placed in a die to be punched, two sets of independent dies are used for respectively punching a riveting hole (1) and a mounting hole (2), and because the position precision requirements between a limiting surface (3) and the riveting hole (1) and the mounting hole (2) are required to be ensured, and when the rear vehicle door lower female hinge product is installed on a vehicle, the limiting surface (3) also needs to have an angle requirement. When the riveting hole (1) and the mounting hole (2) are punched, 50% of workpieces need to be manually corrected when workers put the workpieces into a die, the production efficiency is low, the position accuracy is unstable, the qualified rate of finished products is low, and the qualified rate is generally kept at 95%.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and providing a punching die for a lower female hinge of a rear door.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a rear vehicle door upper female hinge forming die comprises an upper die plate, a lower die plate, a pressure plate and a guide sleeve which are positioned on the bottom plate surface of the upper die plate, and a guide post and a female die frame which are positioned on the top plate surface of the lower die plate, wherein the outer diameter of the guide post is matched with the inner diameter and the number of the guide sleeve, and a female die cavity matched with the appearance of a workpiece blank is arranged at the geometric center of the female die frame; the method is characterized in that: the bottom plate surface of the upper template is fixedly provided with two punches, two oblique wedge slotting tools and a limiting surface locating block, the limiting surface locating block is positioned below the punches, the two oblique wedge slotting tools are positioned at two sides of the limiting surface locating block, and the inner side walls of the oblique wedge slotting tools are provided with oblique slotting surfaces a;

and a lower die insert is arranged at the cavity of the female die, and a set of side punching hole structure is respectively arranged at two sides of the cavity of the female die.

In the above scheme, further: the side punching structure also comprises an inclined wedge sliding block, an inclined insertion surface b matched with the inclined insertion surface a is arranged on the outer side wall of the inclined wedge sliding block, the outer end of a pull rod is fixed on the outer side wall of the inclined wedge sliding block and penetrates through the side wall of the female die frame, a reset spring seat is fixed on the outer end of the pull rod, and a reset spring is arranged on a rod section of the pull rod penetrating through the side wall of the female die frame;

and a side punch fixing plate is fixed on the inner side wall of the oblique wedge sliding block, a side punch is fixed on the inner side wall of the side punch fixing plate, a side punch stripper plate is arranged right opposite to the side punch fixing plate, and the inner plate surface of the side punch stripper plate is positioned in the cavity.

The utility model discloses following beneficial effect has: the labor intensity of workers is reduced, the production efficiency is improved, the later maintenance is only carried out aiming at the lower die insert, the consumption and the cost input of raw materials of the die are reduced, the manufacturing cost is reduced, and the qualification rate of finished products is improved.

Drawings

FIG. 1 is a three-dimensional structure view of the rear door lower female hinge of the present invention;

fig. 2 is a schematic perspective view of the present invention;

fig. 3 is a schematic perspective view of an upper die of the rear door lower female hinge punching die provided by the present invention;

fig. 4 is a schematic perspective view of a lower die of the rear door lower female hinge punching die provided by the utility model;

fig. 5 is a schematic view of a local three-dimensional structure in an operating state of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the utility model provides a forming die for a rear vehicle door upper female hinge, including an upper template 4 and a lower template 5, a pressure plate 6 and a guide sleeve 7 which are positioned on the bottom plate surface of the upper template 4, a guide post 8 and a female die frame 9 which are positioned on the top plate surface of the lower template 5, wherein the outer diameter of the guide post 8 is matched with the inner diameter and the number of the guide sleeve 7, and a female die cavity 10 which is matched with the shape of a workpiece blank is arranged at the geometric center of the female die frame 9; the method is characterized in that: two punch heads 12, two inclined wedge slotting tools 13 and a limiting surface positioning block 14 are fixed on the bottom plate surface of the upper template 4, the limiting surface positioning block 14 is positioned below the punch heads 12, the two inclined wedge slotting tools 13 are positioned at two sides of the limiting surface positioning block 14, and inclined slotting surfaces a are arranged on the inner side walls of the inclined wedge slotting tools 13;

the die cavity 10 is provided with a lower die insert 11, and two sides of the die cavity 10 are respectively provided with a set of side punching structures A. In this embodiment, the setting of spacing face to position piece 14 for the position accuracy between spacing face 3 and riveting hole 1 and the mounting hole 2 can effectively be guaranteed, has guaranteed spacing face 3's uniformity simultaneously, has just also guaranteed that the processing product is when installing on the car, and spacing face 3 can satisfy the angle requirement. In the processing process, only about 5 percent of blanks need to be manually corrected, the labor intensity of workers is reduced, the production efficiency is improved, the product percent of pass can reach 99.99 percent, and the product percent of pass is improved. Due to the arrangement of the lower die insert 11, the later maintenance cost is greatly reduced.

In order to ensure that the side punching structure a is easy to manufacture, in the above embodiment, it is preferable that: the side punching hole structure A also comprises an inclined wedge sliding block 15, an inclined insertion surface b matched with the inclined insertion surface a is arranged on the outer side wall of the inclined wedge sliding block 15, the outer end of a pull rod 16 fixed on the outer side wall of the inclined wedge sliding block 15 penetrates through the side wall of the female die frame 9, a reset spring seat 17 is fixed on the outer end of the pull rod 16, and a reset spring is arranged on a rod section of the pull rod 16 penetrating through the side wall of the female die frame 9;

a side punch fixing plate 18 is fixed to the inner side wall of the tapered slide 15, a side punch 19 is fixed to the inner side wall of the side punch fixing plate 18, a side punch stripper plate 20 is provided directly opposite to the side punch fixing plate 18, and the inner plate surface of the side punch stripper plate 20 is located in the cavity 10.

In order to avoid the accident of hurting people by the return spring, in the above embodiment, it is preferable that: a flexible protective cover 21 is arranged on the rod section of the pull rod 16 which penetrates out of the side wall of the cavity die frame 9, and the return spring is positioned in the protective cover 21.

In order to further ensure the machining precision, in the above embodiment, preferably: four inner guide sleeves 22 are arranged at four corners of the top plate surface of the female die frame 9, and four inner guide posts 26 matched with the inner guide sleeves 22 are correspondingly arranged at four corners of the bottom plate surface of the material pressing plate 6.

In order to ensure the service life of the inner guide post 26, in the above embodiment, it is preferable that: the female die frame 9 is provided with two downward pressure plate limiting blocks 29, and the two downward pressure plate limiting blocks 29 are symmetrically arranged on two sides of the female die cavity 10.

In order to adjust the control accuracy, in the above embodiment, it is preferable that: the inner guide posts 26 are fixed to an inner guide post plate 27, the guide post plate 27 is fixed to a plate 28, and the plate 28 is fixed to the top plate surface of the upper plate 4.

In order to reduce the manufacturing cost, in the above embodiment, preferably: the inner guide pillar backing plate 27 is provided with a pressure plate backing plate 25, and the pressure plate 6 is fixed on the pressure plate backing plate 25.

In order to further reduce the manufacturing cost and the adjustment control precision, in the above embodiment, it is preferable that: the bottom plate surface of the female die frame 9 is fixed on a female die frame backing plate 24, and the female die frame backing plate 24 is fixed on the top plate surface of the lower template 5.

In the working process of the die, the upper die plate 4 moves downwards, so that the two punching heads 12 perform positive punching operation on the two mounting holes 2; the two oblique wedge slotting tools 13 move downwards to push the oblique wedge sliding blocks 15 to move inwards the die frame 9, so that the side punch 19 performs side punching operation on the riveting hole 1. After the punching is finished, the inclined wedge sliding block 15 is far away from the female die frame 9 under the action of a return spring to complete the return, and the punch 12 and the upper die plate 4 are integrally returned along with an external power mechanism.

Finally, it should be noted that: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A punching die for a lower female hinge of a rear vehicle door comprises an upper template (4), a lower template (5), a pressure plate (6) and a guide sleeve (7) which are positioned on the bottom plate surface of the upper template (4), guide posts (8) and a female die frame (9) which are positioned on the top plate surface of the lower template (5), wherein the outer diameter of each guide post (8) is matched with the inner diameter and the number of the guide sleeve (7), and a female die cavity (10) matched with the shape of a workpiece blank is arranged at the geometric center of the female die frame (9); the method is characterized in that: two punch heads (12), two oblique wedge slotting tools (13) and a limiting surface positioning block (14) are fixed on the bottom plate surface of the upper template (4), the limiting surface positioning block (14) is positioned below the punch heads (12), the two oblique wedge slotting tools (13) are positioned on two sides of the limiting surface positioning block (14), and an oblique slotting surface a is arranged on the inner side wall of the oblique wedge slotting tool (13);

the die is characterized in that a lower die insert (11) is arranged at the concave die cavity (10), and a set of side punching hole structures (A) are respectively arranged on two sides of the concave die cavity (10).

2. The rear door lower female hinge punching die of claim 1, wherein: the side punching structure (A) further comprises an oblique wedge sliding block (15), an oblique inserting face b matched with the oblique inserting face a is arranged on the outer side wall of the oblique wedge sliding block (15), the outer end of a pull rod (16) fixed on the outer side wall of the oblique wedge sliding block (15) penetrates through the side wall of the concave die frame (9), a reset spring seat (17) is fixed on the outer end of the pull rod (16), and a reset spring is arranged on a rod section of the pull rod (16) penetrating through the side wall of the concave die frame (9);

a side punch fixing plate (18) is fixed on the inner side wall of the inclined wedge sliding block (15), a side punch (19) is fixed on the inner side wall of the side punch fixing plate (18), a side punch stripper plate (20) is arranged right opposite to the side punch fixing plate (18), and the inner plate surface of the side punch stripper plate (20) is located in the female die cavity (10).

3. The rear door lower female hinge punching die of claim 2, characterized in that: a flexible protective cover (21) is arranged on the rod section of the pull rod (16) penetrating out of the side wall of the female die frame (9), and the return spring is positioned in the protective cover (21).

4. The rear door lower female hinge punching die according to any one of claims 1 to 3, wherein: four inner guide sleeves (22) are arranged at four corners of the top plate surface of the female die frame (9), and four inner guide posts (26) matched with the inner guide sleeves (22) are correspondingly arranged at four corners of the bottom plate surface of the material pressing plate (6).

5. The rear door lower female hinge punching die of claim 4, wherein: two material pressing plate descending limiting blocks (29) are arranged on the female die frame (9), and the two material pressing plate descending limiting blocks (29) are symmetrically arranged on two sides of the female die cavity (10).

6. The rear door lower female hinge punching die of claim 4, wherein: the inner guide post (26) is fixed on an inner guide post base plate (27), the guide post base plate (27) is fixed on a base plate (28), and the base plate (28) is fixed on the top plate surface of the upper template (4).

7. The rear door lower female hinge punching die of claim 6, wherein: a material pressing plate backing plate (25) is arranged on the inner guide pillar backing plate (27), and the material pressing plate (6) is fixed on the material pressing plate backing plate (25).

8. The rear door lower female hinge punching die according to any one of claims 1 to 3, wherein: the bottom plate surface of the female die frame (9) is fixed on a female die frame backing plate (24), and the female die frame backing plate (24) is fixed on the top plate surface of the lower template (5).