CN105750419A - Male tab chamfering die mechanism - Google Patents

Abstract

The invention provides an insert chamfering mold mechanism, which chamfers one end of the insert. The chamfering mold mechanism includes an upper mold part and a lower mold part located above it; the lower mold part includes a lower template and a The upper lower top block, the lower pressure block, and the insert piece are located on the upper end surface of the lower top block, and the end of the end of the insert piece that needs to be chamfered is located on the upper end surface of the lower pressure block, and the upper end surface of the lower pressure block and the end of the insertion piece There is a chamfered lower forming part at the corresponding position; positioning devices are provided on all sides of the insert except for the end that needs to be chamfered; the upper mold part includes the upper template and the upper top block and upper pressure block on the lower end surface of the upper template , the upper top block is opposite to the lower top block, the upper pressing block is opposite to the lower pressing block, and a chamfering upper forming part is arranged on the lower end surface of the upper pressing block opposite to the chamfering lower forming part; the upper mold part is pressed down, and the upper The jacking block and the lower jacking block press the inserting piece, and the upper pressing block and the lower pressing block utilize their chamfering upper forming part and the chamfering lower forming part to punch out the chamfering at the end of the inserting piece.

Description

An Insert Chamfering Die Mechanism

technical field

The invention relates to the technical field of chamfering device design, in particular to a chamfering die mechanism for chamfering inserts.

Background technique

The insert is an indispensable part of the electrical switch product. The output of the product is large, the dimensional accuracy is high, the surface is required to be flat and smooth, and the stamping burr is controlled within a small allowable range to ensure good contact when the insert is working. state. Referring to 1-4, Figures 1 and 2 are schematic diagrams of inserts without chamfering, and Figure 2 is the product part diagram after chamfering in Figure 3. The main purpose is to pour out a 0.7mm chamfer on the left end of the insert .

In the prior art, the inserts are usually chamfered by turning, etc. This processing method has low machining accuracy, and the processed surface is not smooth and flat enough, so that the produced inserts cannot meet the corresponding requirements, and the defective rate High; therefore, it is necessary to provide a chamfering device to process high-precision inserts.

Contents of the invention

Aiming at the problems in the background technology, the present invention provides an insert chamfering die mechanism for chamfering one end of the insert. The chamfering die mechanism includes an upper die part and a lower die part, and the upper die part is located at the above the lower die section, where,

The lower mold part includes a lower template and a lower top block and a lower pressing block arranged on the upper end surface of the lower template, the lower pressing block is arranged on the side of the lower top block, and the insert is located on the side of the lower top block. On the upper end surface, and the end of the end of the insertion piece that needs to be chamfered is located on the upper end surface of the lower pressure block, and the upper end surface of the lower pressure block is provided with a chamfered lower molding at the position corresponding to the end of the insertion piece. Department; except for one end that needs to be chamfered, the other sides of the insert are provided with positioning devices;

The upper mold part includes an upper template and an upper jacking block and an upper pressing block on the lower end surface of the upper template, the upper jacking block is opposite to the lower jacking block, the upper pressing block is opposite to the lower pressing block, And the lower end surface of the upper pressing block is provided with a chamfered upper forming part at a position opposite to the chamfered lower forming part;

The upper mold is partially pressed down, the upper jacking block and the lower jacking block press the insertion piece, and the upper pressing block and the lower pressing block utilize their chamfered upper forming part and chamfered lower forming part Punch out chamfers on the ends of the tabs.

Preferably, the upper mold part further includes an upper mold core, the upper mold core is arranged on the lower end surface of the upper template, and an upper backing plate is arranged between the upper mold core and the upper template, so The upper jacking block and the upper pressing block are all arranged in the upper mold core, and the lower ends of the upper jacking block and the upper pressing block protrude from the upper mold core;

The lower mold part also includes a lower mold core, the lower mold core is arranged on the upper end surface of the lower template, and a lower backing plate is arranged between the lower mold core and the lower template, and the lower top Both the block and the lower pressing plate are arranged in the lower mold core, and the upper end surfaces of the lower top block and the lower pressing block expose the upper end surface of the lower mold core.

Preferably, a mold shank is also provided on the upper end surface of the upper template, and a first spring is arranged inside the mold shank; the upper end of the first spring is connected to the mold shank, and the lower end of the first spring is connected through the upper template. The upper end face of the upper top block.

Preferably, a second spring is provided in the lower template, the lower end of the second spring is located in the lower template and connected to the lower template, and the upper end of the second spring protrudes out to connect with the lower top. piece.

Preferably, the positioning device includes a block and two push rods, the block is used to limit the other end of the insertion piece opposite to the chamfered end, and the two push rods are used to position the opposite end of the chamfered end. The front and rear sides of the above-mentioned inserts are limited.

Preferably, the block is arranged in the lower mold core and is located on the side of the lower top block, and the positioning device also includes a pressing plate, a screw, and a third spring, and the pressing plate is fixed on the lower mold core by the screw. On the outer side of the mold core, the third spring penetrates through the side wall of the lower mold core, and one end of the third spring abuts against the pressing plate, and the other end abuts against the block.

Compared with the prior art, the present invention has the following advantages and positive effects due to the adoption of the above technical solutions:

The insert chamfering die mechanism provided by the present invention has a simple structure. The insert is fixed and positioned by the upper top block, the lower top block, and the positioning device, and the chamfer at one end of the insert is stamped by the upper pressing block and the lower pressing block. , The mechanism is easy to operate, the chamfering processing precision is high, and the processing parts are smooth and smooth, which is conducive to reducing the defective rate.

Description of drawings

The above and other features and advantages of the present invention can be more clearly understood through the following detailed description in conjunction with the accompanying drawings, wherein:

Fig. 1 is a top view of an insert without chamfering;

Figure 2 is a front view of an unchamfered insert;

Figure 3 is a top view of the chamfered insert;

Figure 4 is a front view of the chamfered insert;

Figure 5 is a cross-sectional view of the insert chamfering die mechanism provided by the present invention;

Fig. 6 is a top view of the lower mold part provided by the present invention.

detailed description

The invention will be described in more detail hereinafter with reference to the accompanying drawings showing embodiments of the invention. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In these drawings, the size and relative sizes of layers and regions may be exaggerated for clarity.

With reference to 5-6, the present invention provides a chamfering mold mechanism for inserts, which is used to chamfer one end of the insert 1 shown in Figures 1 and 2; the chamfering mold mechanism includes an upper mold part and a lower mold part, the insert semi-finished product punched by the previous process is placed on the lower mold part, and the upper mold part is pressed down on the insert to punch out the chamfering. The insert chamfering mechanism has simple structure, convenient operation, and high chamfering accuracy. , The processing part is flat and smooth.

In this embodiment, the lower mold part includes a lower template 16, a lower mold core 3, a lower top block 17, and a lower pressing block 4; A lower backing plate 15 is arranged between the cores 3; the lower top block 17 and the lower pressure block 4 are both arranged in the lower mold core 3, and the upper end surfaces of the lower top block 17 and the lower pressure block 4 expose the upper end surface of the lower mold core 3; The lower pressing block 4 is arranged on one side of the lower top block 17 .

Further, the insert 1 is placed on the upper end surface of the lower top block 17, and the end of the end of the insert 1 that needs to be chamfered is located on the upper end surface of the lower pressing block 4, and the upper end surface of the lower pressing block 4 and the insert 1 need A chamfered lower forming part is provided at a position corresponding to the end of the chamfered end.

In this embodiment, positioning devices are provided on all sides of the insertion piece 1 except for the end that needs to be chamfered. The positioning device includes a block 12 and two push rods 18. The block 12 is used to position the other end of the insert 1 opposite to the chamfered end, and the two push rods 18 are used to position the front and rear sides of the insert 1. . In the present invention, through the setting of the positioning device, the insertion piece 1 can be limited to prevent the movement of the insertion piece during the chamfering process from affecting the machining accuracy.

Further, the block 12 is arranged in the lower mold core 3 and is positioned on the side of the lower top block 17, and the positioning device also includes a pressing plate 14, a screw 13, and a third spring 19, and the pressing plate 14 is fixed on the outer side of the lower mold core 3 by the screw 13 Above, the third spring 13 runs through the side wall of the lower mold core 3, and one end of the third spring 13 is pressed against the pressure plate 14, and the other end is pressed against the piece 12; under the elastic force of the third spring 13, the piece 12 Push against the side of the lower mold core 3.

In this embodiment, a second spring 5 is arranged in the lower template 16, the lower end of the second spring 5 is located in the lower template 16, and is fixed in the lower template 16 by a set screw, and the upper end of the second spring 5 protrudes through The lower backing plate 15 is connected to the lower jacking block 17; in this embodiment, through the setting of the second spring 5, when the upper mold part is pressed down to perform chamfering, the second spring 5 plays a certain buffering effect on the lower jacking block 17.

In this embodiment, the upper mold part includes an upper template 8, an upper mold core 9, an upper top block 11, and an upper pressing block 2; An upper backing plate 9 is also arranged between the cores 9; the upper top block 11 and the upper pressing block 2 are arranged in the upper mold core 9, and the lower end surfaces of the upper top block 11 and the upper pressing block 2 protrude from the upper mold core 9; The top block 11 is opposite to the lower top block 17, the upper block 2 is opposite to the lower block 4, and the lower end surface of the upper block 2 is opposite to the chamfered lower forming part on the lower block 4. part, the chamfering upper forming part and the chamfering lower forming part are used for stamping out the chamfering to one end of the insertion piece together. Wherein, the specific shapes of the chamfered upper forming portion and the chamfering lower forming portion are set according to the shape, angle, and size of the chamfering that needs to be supported, and are not limited here.

In this embodiment, a die handle 20 is also provided on the upper end surface of the upper template 8, and a first spring 7 is arranged in the die handle 20; The lower end passes through the upper template 8 and the upper backing plate 9 successively to connect the upper end surface of the top block 11. The mold handle 20 and the first spring 7 are used to push the upper top block to press on the insertion piece when the upper mold part is separated from the lower mold part, so as to prevent the insertion piece from being adsorbed on the upper pressing block 2 .

The working principle of the insert chamfering die mechanism provided by the present invention will be further described below, specifically:

The semi-finished insert piece stamped by the previous process is shown in Figure 1-2. The semi-finished insert piece is placed on the upper surface of the lower top block 17 of the insert chamfering die, and the front, rear and right sides of the insert pass through Positioning device for positioning;

After the insert is positioned, the upper mold part is pressed down, the upper top block 11 is pressed on the insert, and the upper top block 11 and the lower top block 17 press the insert together to play the role of pressing the sheet to prevent the insert from chamfering. Due to being moved by the effect of unilateral force, the piece 12 also exerts a leftward pressure on the insert under the action of the third spring 19; meanwhile, the upper pressing block 2 is pressed on one end of the insert, and the upper pressing block 2 The chamfered upper forming part of the upper part and the chamfered lower forming part of the lower pressing block 4 stamp out the chamfering on the arc part on the left side of the insert;

After the chamfering is completed, the upper mold part moves upwards. In order to prevent the insert from being adsorbed on the upper pressing block 2, the first spring 7 is pressed down. Under the action of the first spring 7, the upper ejector 11 pushes the insert downward, so that The insert falls on the lower top block 17, and finally the operator can take out the insert falling on the lower mold part with tweezers.

The insert chamfering die mechanism provided by the present invention has a simple structure, and the chamfering at one end of the insert is stamped by the upper pressing block and the lower pressing block, which is convenient to operate, has high machining precision of the chamfering, and has smooth processing parts.

Those skilled in the art will appreciate that the present invention may be embodied in many other specific forms without departing from its own spirit or scope. Although the embodiments of the present invention have been described, it should be understood that the present invention should not be limited to these embodiments, and that changes and modifications can be made by those skilled in the art within the spirit and scope of the invention as defined by the appended claims.

Claims (6)

1. an inserted sheet chamfering mold mechanism, carries out chamfering to inserted sheet one end, it is characterised in that described chamfering mold mechanism includes part of the upper die and part of the lower die, and described part of the upper die is positioned at the top of described part of the lower die, wherein,

Described part of the lower die includes lower bolster and the lower jacking block being arranged on lower bolster upper surface, lower lock block, described lower lock block is arranged on the side of described lower jacking block, described inserted sheet is positioned on the upper surface of described lower jacking block, and described inserted sheet needs the end of one end of chamfering to be positioned on the upper surface of described lower lock block, described lower lock block upper surface and described tab end portion corresponding position are provided with chamfering compacted under portion；Described inserted sheet removes all the other each sides outside the one end needing chamfering and is provided with positioner；

Described part of the upper die includes cope match-plate pattern and the upper jacking block arranging on cope match-plate pattern lower surface, upper holder block, described upper jacking block is relative with described lower jacking block, described upper holder block is relative with described lower lock block, and is provided with in chamfering with described chamfering compacted under portion relative position on described upper holder block lower surface forming part；

Pressing under described part of the upper die, described upper jacking block and described lower jacking block are pushed down described inserted sheet, described upper holder block and described lower lock block and are utilized forming part in its chamfering, chamfering compacted under portion to go out chamfering in the end of inserted sheet.

2. inserted sheet chamfering mold mechanism according to claim 1; it is characterized in that; described part of the upper die also includes upper mold core; described upper mold core is arranged on described cope match-plate pattern lower surface; and it is provided with upper padding plate between described upper mold core and described cope match-plate pattern; described upper jacking block, upper holder block are arranged in described upper mold core, and described upper mold core is stretched out in the lower end of described upper jacking block, upper holder block；

Described part of the lower die also includes lower mold core, described lower mold core is arranged on the upper surface of described lower bolster, and it is provided with lower bolster between described lower mold core and described lower bolster, described lower jacking block, lower platen are arranged in described lower mold core, and the upper surface of described lower mold core is exposed in the upper surface of described lower jacking block, lower lock block.

3. inserted sheet chamfering mold mechanism according to claim 1 and 2, it is characterised in that be additionally provided with a die shank on the upper surface of described cope match-plate pattern, be provided with the first spring in described die shank；The upper end of described first spring connects described die shank, and lower end connects the upper surface of described upper jacking block through described cope match-plate pattern.

4. inserted sheet chamfering mold mechanism according to claim 1 and 2; it is characterized in that; being provided with the second spring in described lower bolster, the lower end of described second spring is positioned at described lower bolster and is connected with described lower bolster, and the described lower jacking block of connection is stretched out in the upper end of described second spring.

5. inserted sheet chamfering mold mechanism according to claim 2; it is characterized in that; described positioner includes a piece and two push rods, described piece on described inserted sheet with chamfered end relative to the other end carry out spacing, push rod described in two is for carrying out spacing to the side, front and back of described inserted sheet.

6. inserted sheet chamfering mold mechanism according to claim 5; it is characterized in that; described piece is arranged in lower mold core and is positioned at the side of described lower jacking block; described positioner also includes pressing plate, screw, the 3rd spring; described pressing plate is fixed on the lateral surface of described lower mold core by described screw; described 3rd spring runs through the sidewall of described lower mold core, and one end of described 3rd spring is against on described pressing plate, and the other end is against on described piece.