CN113579054A

CN113579054A - Compound blanking mould of connecting plate

Info

Publication number: CN113579054A
Application number: CN202110830532.8A
Authority: CN
Inventors: 陈小红; 姜晓强; 陶勇; 邱葭菲
Original assignee: Zhejiang Institute of Mechanical and Electrical Engineering Co Ltd
Current assignee: Zhejiang Institute of Mechanical and Electrical Engineering Co Ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2021-11-02

Abstract

The invention relates to the field of molds, in particular to a composite punching mold for connecting plates, comprising an upper mold assembly and a lower mold assembly, wherein the upper mold assembly includes a mold handle, an upper mold seat, a backing plate, a punch fixing plate, a large mold Punch, small punch and concave die; die; lower die assembly includes lower die base, concave and convex die and stripper plate; when the upper die assembly moves downward, the stripper plate and the concave die first contact the blank to remove the blank. Clamp, and move down with the upper die assembly, start punching, the punched workpiece is stuck in the die, and tightly wrapped on the large punch and the small punch, the punching waste falls on the punch of the punch. The large blanking hole and the small blanking hole are inside, and the outer blank material is tightly wrapped on the concave and convex die; the workpiece is formed at one time, which has the advantage of high efficiency.

Description

Compound blanking mould of connecting plate

Technical Field

The invention relates to the field of dies, in particular to a composite blanking die for a connecting plate.

Background

The die is an important component of the mechanical industry, and the produced part has the advantages of high precision, high efficiency, low cost and the like. The blanking die is indispensable technological equipment in stamping production, and a good die structure is reliable guarantee for realizing a technological scheme.

The connecting disc is a disc-shaped object, the center of which is provided with a hole, and the periphery of the central hole is also provided with a plurality of fixing holes for connecting other parts. In the traditional process, the connecting disc is machined by a numerical control machine tool, holes are machined one by one on the machine tool through a milling cutter, and the efficiency is low.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a composite blanking die for a connecting plate.

The purpose of the invention is achieved by the following technical scheme: the composite blanking die for the connecting plate comprises an upper die assembly and a lower die assembly, wherein the upper die assembly and the lower die assembly are arranged oppositely, the upper die assembly is connected with external equipment, and a blank sent to the lower die assembly is blanked by the upper die assembly under the driving of the external equipment;

the upper die assembly comprises a die handle, an upper die base, a base plate, a male die fixing plate, a large male die, a small male die and a female die; the die handle is fixed at the top of the upper die base and is directly connected with external equipment, the backing plate is connected with the lower surface of the upper die base, the large male die is arranged below the upper die base and is fixed through the backing plate, the small male dies are provided with a plurality of small male dies and are distributed around the large male dies at equal angles, the small male dies are connected with the lower surface of the backing plate through the male die fixing plate, and the female dies are sleeved outside the space enclosed by all the small male dies and are fixed on the lower surface of the male die fixing plate;

lower mould component includes the die holder, male and female mould and stripper, the male and female mould is fixed on the die holder, the male and female mould corresponds big terrace die and little terrace die and is equipped with big blanking hole and little blanking hole, the stripper sets up in the male and female mould outside, be used for placing the blank, and with the die cooperation, when last mould component downstream, at first contact the blank by stripper and die and clip the blank, and continuously move down along with last mould component, begin the blanking, work piece that dashes down is blocked in the die, and the tight package is on big terrace die and little terrace die, the waste material that punches a hole falls in big blanking hole and the little blanking hole of male and female mould, and outside blank material is then tight package on the male and female mould.

Furthermore, the stripper plate is movably arranged along the blanking direction relative to the lower die base, and the bottom of the stripper plate is provided with a discharging screw for fixing and guiding and a spring for elastic support.

Furthermore, a gap is formed between a space enclosed by the female die and the small male die, a pushing block which is movably arranged relative to the upper die base along the blanking direction is arranged in the gap, a push rod which is movably arranged along the blanking direction is arranged in the die handle, a pushing pin is arranged between the push rod and the pushing block, and the pushing pin penetrates through the lower surface of the lower die base, the base plate and the male die fixing plate. The external equipment is provided with a knockout beam matched with the push rod, after blanking is finished, the workpiece is left in a hole of the female die, the upper die assembly is reset, the push rod can touch the knockout beam to move downwards, and then the push rod is pushed to push the ejector pad to move downwards, so that the workpiece is ejected out of the female die and falls down.

Furthermore, two material guide pins for guiding the blank to move to the blanking position and a material stop pin for stopping the blank at the blanking position in cooperation with the material guide pins are arranged on the discharging plate.

The invention has the beneficial effects that: during processing, the upper die assembly moves downwards, the stripper plate and the female die firstly contact the blank to clamp the blank and continuously move downwards along with the upper die assembly to begin blanking, a punched workpiece is clamped in the female die and tightly wrapped on the large male die and the small male die, punched waste falls in a large blanking hole and a small blanking hole of the female die, and external blank materials are tightly wrapped on the female die and the male die; the workpiece is formed in one step, and the efficiency is high.

Drawings

Fig. 1 is a schematic cross-sectional structure of the present invention.

FIG. 2 is a schematic view of the matching state of the material guiding pin, the material stopping pin and the blank according to the present invention;

description of reference numerals: the stamping die comprises a die shank 1, an upper die base 2, a backing plate 3, a punch retainer 4, a large punch 5, a small punch 6, a female die 7, a lower die base 8, a male-female die 9, a large blanking hole 9-1, a small blanking hole 9-2, a stripper plate 10, a discharge screw 11, a spring 12, a pushing block 13, a push rod 14, a pushing pin 15, a material guide pin 16 and a material blocking pin 17.

Detailed Description

The invention will be described in detail below with reference to the following drawings:

example (b): as shown in the attached drawings, the composite blanking die for the connecting plate comprises an upper die assembly and a lower die assembly, wherein the upper die assembly and the lower die assembly are arranged oppositely, the upper die assembly is connected with external equipment, and a blank sent to the lower die assembly is blanked by the upper die assembly driven by the external equipment.

The upper die assembly comprises a die shank 1, an upper die base 2, a base plate 3, a male die fixing plate 4, a large male die 5, a small male die 6 and a female die 7; the die shank 1 is fixed at the top of an upper die base 2 and is directly connected with external equipment, a backing plate 3 is connected with the lower surface of the upper die base 2, a large male die 5 is arranged below the upper die base 2 and is fixed through the backing plate 3, a plurality of small male dies 6 are arranged and distributed around the large male dies 5 at equal angles, the small male dies 6 are connected with the lower surface of the backing plate 3 through a male die fixing plate 4, and a female die 7 is sleeved outside a space surrounded by all the small male dies 6 and is fixed on the lower surface of the male die fixing plate 4;

the lower die assembly comprises a lower die base 8, a male die 9 and a discharging plate 10, the male die 9 is fixed on the lower die base 8, the male die 9 is provided with a large blanking hole 9-1 and a small blanking hole 9-2 corresponding to the large male die 5 and the small male die 6, the discharging plate 10 is arranged outside the male die 9 and used for placing blanks and matched with the female die 7, when the upper die assembly moves downwards, the discharging plate 10 and the female die 7 firstly contact the blanks to clamp the blanks and continuously move downwards along with the upper die assembly to start blanking, punched workpieces are clamped in the female die 7 and tightly wrapped on the large male die 5 and the small male die 6, punched wastes fall into the large blanking hole 9-1 and the small blanking hole 9-2 of the male die 9, and external blank materials are tightly wrapped on the male die 9.

Preferably, the stripper plate 10 is movably arranged relative to the lower die base 8 along the blanking direction, and the bottom of the stripper plate 10 is provided with a fixing and guiding stripper screw 11 and a spring 12 for elastic support. At the end of blanking, when the upper die assembly is reset, the remaining blank material tightly wrapped on the male and female dies 9 is ejected from the male and female dies 9 by the action of the spring 12.

Preferably, a gap is formed between a space enclosed by the female die 7 and the small male die 6, a pushing block 13 movably arranged relative to the upper die holder 2 along the blanking direction is arranged in the gap, a push rod 14 movably arranged along the blanking direction is arranged in the die handle 1, a push pin 15 is arranged between the push rod 14 and the pushing block 13, and the push pin 15 penetrates through the lower surface of the lower die holder 8, the backing plate 3 and the male die fixing plate 4. The external equipment is provided with a knockout beam matched with the push rod 14, after blanking is finished, a workpiece is left in a hole of the female die 7, the upper die assembly is reset, the push rod 14 can touch the knockout beam to move downwards, and then the push rod is transmitted to the push pin 15 to push the ejector block 13 to move downwards, so that the workpiece is ejected out of the female die 7 and falls down.

Preferably, two guide pins 16 for guiding the blank to move to the blanking position and a stop pin 17 for stopping the blank at the blanking position in cooperation with the guide pins 16 are provided on the stripper plate 10.

It should be understood that equivalent substitutions or changes to the technical solution and the inventive concept of the present invention should be considered to fall within the scope of the appended claims for the skilled person.

It should be understood that equivalent substitutions and changes to the technical solution and the inventive concept of the present invention should be made by those skilled in the art to the protection scope of the appended claims.

Claims

1. a composite punching die for a connecting plate, characterized in that: comprising an upper die assembly and a lower die assembly, the upper die assembly and the lower die assembly are relatively arranged, the upper die assembly connects external equipment, and the upper die assembly The blanks sent to the lower die assembly are blanked by the drive of the external equipment;

The upper die assembly includes a die handle (1), an upper die base (2), a backing plate (3), a punch fixing plate (4), a large punch (5), a small punch (6) and a female die (7) ); the die handle (1) is fixed on the top of the upper die base (2) and is directly connected to external equipment, the backing plate (3) is connected to the lower surface of the upper die base (2), and the large punch (5) is set on the upper die base ( 2) Below and fixed by the backing plate (3), the small punches (6) are provided with a plurality of and equiangularly distributed around the large punches (5), and the small punches (6) are connected with the punch fixing plate (4). On the lower surface of the backing plate (3), the concave die (7) is sleeved outside the space enclosed by all the small punches (6) and is fixed on the lower surface of the punch fixing plate (4);

The lower die assembly includes a lower die base (8), a concave and convex die (9) and a stripper plate (10). The concave and convex die (9) is fixed on the lower die base (8), and the concave and convex die (9) corresponds to the large punch (5). ) and the small punch (6) are provided with large blanking holes (9-1) and small blanking holes (9-2). , and cooperates with the die (7), when the upper die assembly moves downward, the unloading plate (10) and the die (7) first contact the blank to clamp the blank, and continue to move down with the upper die assembly , start punching, the punched workpiece is stuck in the concave die (7), and is tightly wrapped on the large punch (5) and the small punch (6), and the punched waste falls on the concave and convex die (9). Inside the large blanking hole (9-1) and the small blanking hole (9-2), the outer blank material is tightly wrapped on the concave and convex die (9).

2. The connecting plate composite punching die according to claim 1, wherein the stripper plate (10) is movably arranged along the punching direction relative to the lower die base (8), and the stripper plate (10) (10) The bottom is provided with a discharge screw (11) for fixing and guiding and a spring (12) for elastic support.

3. A connecting plate composite punching die according to claim 1, characterized in that: a gap is provided between the space enclosed by the concave die (7) and the small punch (6), and a gap is set in the gap There is a push piece block (13) movably arranged along the punching direction relative to the upper die base (2), a push rod (14) movably arranged along the punching direction is arranged in the die handle (1), and the push rod ( 14) A pusher (15) is arranged between the pusher block (13), and the pusher (15) passes through the lower surface of the lower die base (8), the backing plate (3) and the punch fixing plate (4). There is a punching beam matched with the push rod (14). After the punching is completed, the workpiece is left in the hole of the die (7), the upper die assembly is reset, and the push rod (14) will touch the punching beam and move downward. , and then transmitted to the pusher (15) to push the pusher block (13) to move downward, and push the workpiece out of the die (7) to drop.

4. A composite punching die for a connecting plate according to claim 1, characterized in that: the stripper plate (10) is provided with two guide pins (16) for guiding the blank to move to the punching position , and a stopper pin (17) that cooperates with the guide pin (16) to make the blank stop at the blanking position.