CN215965713U

CN215965713U - Mould flanging structure

Info

Publication number: CN215965713U
Application number: CN202120556043.3U
Authority: CN
Inventors: 毛古青
Original assignee: Xuancheng Xincheng Automobile Equipment Manufacturing Co ltd
Current assignee: Xuancheng Xincheng Automobile Equipment Manufacturing Co ltd
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2022-03-08
Anticipated expiration: 2031-03-18

Abstract

The utility model provides a die flanging structure, which is used for flanging and stamping a part; the device comprises an upper die mechanism 1, a lower die mechanism 2, a punch assembly 3, a female die 4, a discharging mechanism and a hydraulic pump assembly; the upper die mechanism 1 is arranged right above the lower die mechanism 2; the punch assembly 3 is fixedly arranged in the upper die mechanism 1; the female die 4 is arranged inside the lower die mechanism 2; the female die 4 is matched with the punch assembly 3; the punch assembly 3 further comprises a punch 35, a punch push rod 34 fixed at the bottom of the punch 35, and a punch sleeve 32 coated on the outer surface of the punch push rod 34; the top of the punch sleeve 32 is also provided with a limiting block 33 in an outward protruding manner; the utility model has the beneficial effects that: the displacement of the workpiece is prevented during stamping; the accuracy of mould turn-ups is improved.

Description

Mould flanging structure

Technical Field

The utility model mainly relates to the technical field of stamping dies, in particular to a die flanging structure.

Background

With the rapid development of the automobile industry, all host factories have entered full competition of brand, service, quality, cost and the like, and as an investment key in the production preparation process, how to improve the precision of parts, reduce the number of processes of molds and reduce the number of sets of molds has become the subject of competitive research of all host factories and mold factories. Due to the technical requirements of development of automobile body parts, certain negative angle (including right angle, and natural resilience amount of 2-3 degrees of the finished piece flanging) flanging inevitably exists on a product, so that the flanging precision of the die needs to be improved.

Published chinese utility model patent, application No. CN201010230845.1, patent name: the utility model provides a turn-ups mould structure, application date: 20100719, the utility model relates to a flanging die mechanism, which comprises a female die and a male die, wherein the female die is tightly matched with a key and is fixed on an upper die holder; the method is characterized in that: the female die is provided with a cylindrical rotary flanging knife with an opening and a back support for offsetting the lateral force of the flanging; the two ends of the rotary flanging knife are supported on the female die and rotate in the female die, the back support is tangent to the excircle of the rotary flanging knife, and the opening of the rotary flanging knife is matched with the male die. Due to the fact that the rotary flanging knife is adopted, the inclined wedge mechanism is not adopted, the maximum flanging in the first-order stamping process can reach 135 degrees, 50-80% of flanging forming force is reduced, the use of the fancy inclined wedge is effectively avoided, the number of die processes is reduced, the size of the die is reduced, the rotary flanging knife corresponds to a common straight flanging, and the rotary flanging knife can achieve an over-bending angle, so that the precision of the product can be guaranteed compared with a traditional straight flanging insert. The flanging die is suitable for flanging of automobile body covering parts.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a die flanging structure which is used for flanging and stamping parts.

The utility model provides a die flanging structure, which comprises an upper die mechanism 1, a lower die mechanism 2, a punch assembly 3, a female die 4, a discharging mechanism and a hydraulic pump assembly, wherein the upper die mechanism is arranged on the lower die mechanism;

the upper die mechanism 1 is arranged right above the lower die mechanism 2; the punch assembly 3 is fixedly arranged in the upper die mechanism 1; the female die 4 is arranged inside the lower die mechanism 2; the female die 4 is matched with the punch assembly 3;

the punch assembly 3 further comprises a punch 35, a punch push rod 34 fixed at the bottom of the punch 35, and a punch sleeve 32 coated on the outer surface of the punch push rod 34; the top of the punch sleeve 32 is also provided with a limiting block 33 in an outward protruding manner;

the female die 4 is also provided with a limiting groove 41 matched with the limiting block 33;

the discharging mechanisms are respectively arranged in the upper die mechanism 1 and the lower die mechanism 2;

the hydraulic pump assembly is respectively arranged in the upper die mechanism 1 and the lower die mechanism 2.

Preferably, the punch assembly 3 further comprises a punch base 31; the punch mandril 34 and the punch sleeve 32 are both fixedly arranged on the punch base 31.

Preferably, the length of the stopper 33 is greater than the length of the punch 35.

Preferably, the upper die mechanism 1 comprises an upper die base 11, an upper backing plate 12, an upper clamping plate 13, a discharging backing plate 14 and a discharging plate 15 which are arranged in sequence from top to bottom.

Preferably, the lower die mechanism 2 includes a lower die base 23, a lower backing plate 22 and a lower die plate 21 which are sequentially arranged from bottom to top.

Preferably, the discharging mechanism comprises a discharging ejector rod 5 arranged right below the female die 4 and a lower discharging spring 6 arranged right below the discharging ejector rod 5.

Preferably, the discharging mechanism further comprises an upper discharging spring 7; the bottom of the upper discharging spring 7 is arranged on the upper die base 11, and the top of the upper discharging spring is arranged on the discharging backing plate 14.

Preferably, the hydraulic pump assembly comprises an upper hydraulic pump 8 and a lower hydraulic pump 9; the upper hydraulic pump 8 is fixedly arranged in the upper die mechanism 1; the lower hydraulic pump 9 is fixedly arranged in the lower die mechanism 2.

The utility model has the beneficial effects that: the displacement of the workpiece is prevented during stamping; the accuracy of mould turn-ups is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the punch assembly and die construction;

in the figure, the position of the upper end of the main shaft,

1. the device comprises an upper die mechanism 11, an upper die base 12, an upper backing plate 13, an upper clamping plate 14, a discharging backing plate 15 and a discharging plate;

2. the lower die mechanism 21, a lower die plate 22, a lower backing plate 23 and a lower die base;

3. the punch comprises a punch component 31, a punch seat 32, a punch sleeve 33, a limiting block 34, a punch mandril 35 and a punch;

4. a female die 41 and a limiting groove;

5. a discharging ejector rod; 6. a lower discharging spring; 7. a loading and unloading spring; 8. an upper hydraulic pump; 9. A lower hydraulic pump.

Detailed Description

The present invention will now be described in detail with reference to the drawings, which are given by way of illustration and explanation only and should not be construed to limit the scope of the present invention in any way.

Preferably, in this embodiment, the punch assembly 3 further includes a punch base 31; the punch mandril 34 and the punch sleeve 32 are both fixedly arranged on the punch base 31.

The above structure is provided for fixing the punch carrier 34 and the punch sleeve 32.

In this embodiment, preferably, the length of the limiting block 33 is greater than the length of the punch 35.

With the structure, when the upper die mechanism presses down for punching, the punch sleeve 32 connected to the outer surface of the punch mandril 34 in a sliding way and the punch 35 driven by the punch mandril 34 press down simultaneously; the length of the limiting block 33 is larger than that of the punch 35, so that the limiting block 33 firstly props against the limiting groove 41, and the punch sleeve 32 stops pressing at the moment to play a role in fixing a limiting workpiece. And the punch mandril 34 drives the punch 35 to continuously press down to punch and flanging the workpiece.

Preferably, in this embodiment, the upper die mechanism 1 includes an upper die base 11, an upper pad 12, an upper clamp 13, a discharging pad 14, and a discharging plate 15, which are sequentially arranged from top to bottom.

In this embodiment, preferably, the lower mold mechanism 2 includes a lower mold base 23, a lower bolster 22 and a lower mold plate 21, which are sequentially disposed from bottom to top.

In the preferred embodiment, the discharging mechanism comprises a discharging ejector rod 5 arranged right below the female die 4, and a lower discharging spring 6 arranged right below the discharging ejector rod 5.

By the arrangement of the structure, when the flanging structure is completed, the unloading spring 5 is matched with the unloading ejector rod 5 to jack up the workpiece with the flanging completed, so that the unloading is performed.

In this embodiment, preferably, the discharging mechanism further includes an upper discharging spring 7; the bottom of the upper discharging spring 7 is arranged on the upper die base 11, and the top of the upper discharging spring is arranged on the discharging backing plate 14.

The above structure is provided for assisting the discharge of the discharge mat 14 and the discharge plate 15.

Preferably in this embodiment, the hydraulic pump assembly comprises an upper hydraulic pump 8 and a lower hydraulic pump 9; the upper hydraulic pump 8 is fixedly arranged in the upper die mechanism 1; the lower hydraulic pump 9 is fixedly arranged in the lower die mechanism 2.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A die flanging structure comprises an upper die mechanism (1), a lower die mechanism (2), a punch assembly (3), a female die (4), a discharging mechanism and a hydraulic pump assembly;

it is characterized in that the preparation method is characterized in that,

the upper die mechanism (1) is arranged right above the lower die mechanism (2); the punch assembly (3) is fixedly arranged in the upper die mechanism (1); the female die (4) is arranged inside the lower die mechanism (2); the female die (4) is matched with the punch assembly (3);

the punch assembly (3) further comprises a punch (35), a punch push rod (34) fixed at the bottom of the punch (35), and a punch sleeve (32) coated on the outer surface of the punch push rod (34); the top of the punch sleeve (32) is also provided with a limiting block (33) in a protruding way;

the female die (4) is also provided with a limit groove (41) matched with the limit block (33);

the discharging mechanism is respectively arranged in the upper die mechanism (1) and the lower die mechanism (2);

the hydraulic pump assembly is respectively arranged in the upper die mechanism (1) and the lower die mechanism (2).

2. The die flange structure according to claim 1, characterized in that: the punch assembly (3) further comprises a punch seat (31); the punch mandril (34) and the punch sleeve (32) are both fixedly arranged on the punch base (31).

3. The die flange structure according to claim 2, characterized in that: the length of the limiting block (33) is larger than that of the punch (35).

4. The die flange structure according to claim 3, characterized in that: the upper die mechanism (1) comprises an upper die base (11), an upper backing plate (12), an upper clamping plate (13), a discharging backing plate (14) and a discharging plate (15) which are sequentially arranged from top to bottom.

5. The die flange structure according to claim 4, characterized in that: the lower die mechanism (2) comprises a lower die base (23), a lower backing plate (22) and a lower die plate (21) which are arranged from bottom to top in sequence.

6. The die flange structure according to claim 5, characterized in that: the discharging mechanism comprises a discharging ejector rod (5) arranged under the female die (4) and a lower discharging spring (6) arranged under the discharging ejector rod (5).

7. The die flange structure according to claim 6, characterized in that: the discharging mechanism also comprises an upper discharging spring (7); the bottom of the upper discharging spring (7) is arranged on the upper die base (11), and the top of the upper discharging spring is arranged on the discharging base plate (14).

8. The die flange structure according to claim 7, characterized in that: the hydraulic pump assembly comprises an upper hydraulic pump (8) and a lower hydraulic pump (9); the upper hydraulic pump (8) is fixedly arranged in the upper die mechanism (1); the lower hydraulic pump (9) is fixedly arranged in the lower die mechanism (2).