CN216729120U

CN216729120U - Pre-breaking structure for stamping of electric element

Info

Publication number: CN216729120U
Application number: CN202123292602.3U
Authority: CN
Inventors: 徐建钧; 孙递儿
Original assignee: Dongguan Tuling Technology Co ltd
Current assignee: Dongguan Tuling Technology Co ltd
Priority date: 2021-12-25
Filing date: 2021-12-25
Publication date: 2022-06-14
Anticipated expiration: 2031-12-25

Abstract

The utility model belongs to the technical field of stamping dies, and particularly relates to a pre-breaking structure for stamping an electrical element. According to the utility model, the interaction of the two tungsten steel PG convex cores on the stripper plate auxiliary sleeve and the lower template auxiliary sleeve ensures the accuracy of the workpiece pre-breaking position, and the polygonal conversion of the tungsten steel PG convex cores can be realized through the movable insertion of the tungsten steel PG convex cores in the limiting grooves, so that the conversion use of the pre-breaking head is realized, the durability of the tungsten steel PG convex cores is further improved, and the part abandonment caused by the damage of the pre-breaking head is avoided.

Description

Pre-breaking structure for stamping electrical component

Technical Field

The utility model relates to the technical field of stamping dies, in particular to a pre-breaking structure for stamping an electrical element.

Background

The stamping die is a special technological equipment for processing metal or nonmetal into parts or semi-finished products in cold stamping, is called cold stamping die, and stamping is a pressure processing method for obtaining required parts by applying pressure to the materials by using a die arranged on a press at room temperature to separate or plastically deform the materials.

At present, hardware is pre-cut into an integral part, the product produced in such a way is low in quality (with metal wires), and for parts with pre-cut structures, loss is inevitable when the parts are used for a long time, and the parts need to be maintained and replaced when the loss is generated, which means that the cost is increased, the production is stopped, the working efficiency is reduced, and therefore, the productivity is low;

some pre-breaking structures on the market at present, such as a stamping die pre-breaking structure disclosed in chinese patent application No. (CN202020576487.9), push out the pre-breaking working part from the limiting groove and replace a new part when the pre-breaking working part is worn and broken, and in the actual operation process, because the shape of the pre-breaking working part is basically the same, the pre-breaking working part can be standardized, thereby realizing the common use of pre-breaking parts of different dies and reducing the production cost. However, when the structure is used, only one side of the workpiece can be pre-cut, the pre-cutting effect is poor, and when the structure is used, the pre-cutting head of the pre-cutting working component needs to be replaced urgently after being damaged, so that the waste of parts is easily caused.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a pre-breaking structure for stamping an electrical element, which ensures the accuracy of the pre-breaking position of a workpiece through the interaction of two tungsten steel PG convex cores, protects the rest standby pre-breaking heads through the arrangement of a protection cavity, and solves the problem of short service life of parts.

(II) technical scheme

The utility model specifically adopts the following technical scheme for realizing the purpose:

the utility model provides a structure of cutting off in advance for electric element punching press, includes the upper die base, the punch holder, takes off the flitch, the die holder, the lower bolster, the subassembly of cutting off in advance, the punch holder is installed to the lower extreme of upper die base, the lower bolster that takes off the flitch adaptation is installed to the lower extreme of punch holder, the lower bolster is installed and is taken off the lower bolster of flitch adaptation to the upper end of die holder, the lower bolster with take off and be equipped with the subassembly of cutting off in advance between the flitch, the subassembly of cutting off in advance is assisted the cover and is installed and assist the cover with the lower bolster that the cover corresponds at the inside flitch of taking off inside of flitch including installing, the flitch is assisted the cover and is assisted the looks remote site of cover with the lower bolster and has all seted up the spacing groove, the corner of spacing groove has been seted up the protection chamber, and the equal activity of the inside of spacing groove is inserted and is equipped with the protruding core of tungsten steel PG, four corners of the protruding core of tungsten steel PG all are equipped with the head of cutting off in advance of protection chamber adaptation.

Furthermore, V-shaped bayonets are formed in the opposite ends of the two limiting grooves in the stripper plate auxiliary sleeve and the lower template auxiliary sleeve, and a round chamfer structure is arranged at the joint of the port of each V-shaped bayonet and the convex core of the tungsten steel PG.

Furthermore, the cross section of the pre-breaking head is of a trapezoidal structure, and a titanium plating layer is arranged on the surface of the pre-breaking head.

Further, the inside wall of spacing groove is equipped with the skid resistant course, the skid resistant course is a stainless steel's backing plate.

Furthermore, a cutter is installed on one side, located at the pre-breaking assembly, of the lower end of the upper clamping plate, and a cutter groove matched with the cutter is formed in the upper surface of the lower template.

Further, the insert is installed at the lower end, located at the cutter, of the inside of the stripper plate, and a slide way connected with the cutter in a sliding mode is arranged inside the insert.

Furthermore, the number of the protection cavities is three, the protection cavities are of a cylindrical structure, and the three protection cavities are respectively matched with the other three pre-breaking heads on the tungsten steel PG convex core.

(III) advantageous effects

Compared with the prior art, the utility model provides a pre-breaking structure for stamping an electric element, which has the following beneficial effects:

1. according to the utility model, the interaction of the two tungsten steel PG convex cores on the stripper plate auxiliary sleeve and the lower template auxiliary sleeve ensures the accuracy and precision of the workpiece pre-breaking position, the workpiece is easy to bend and has no burrs, broken filaments are left, and the pre-breaking effect is good.

2. According to the utility model, the tungsten steel PG convex core is movably inserted in the limiting groove, so that the polygonal conversion of the tungsten steel PG convex core can be realized, the conversion use of the pre-broken head is realized, the durability of the tungsten steel PG convex core is further improved, and the parts are prevented from being discarded due to the damage of the pre-broken head.

3. According to the utility model, the protection cavity is arranged to protect the residual standby pre-breaking head, so that the pre-breaking head is prevented from being damaged in the limiting groove due to friction force, and the service life of the equipment is prolonged.

Drawings

FIG. 1 is a schematic structural diagram of a pre-breaking assembly according to the present invention;

FIG. 2 is a schematic structural diagram of a convex core of tungsten steel PG in the utility model;

FIG. 3 is a schematic structural view of a limiting groove according to the present invention;

fig. 4 is a schematic structural view in a mold clamping state of the present invention.

In the figure: 1. the material removing plate is sleeved with an auxiliary sleeve; 2. an auxiliary sleeve of a lower template; 3. a limiting groove; 4. a tungsten steel PG convex core; 5. pre-breaking the head; 6. a protection cavity; 7. an upper die holder; 8. an upper splint; 9. a material removing plate; 10. a lower die holder; 11. a lower template; 12. a cutter groove; 13. a cutter; 14. v-shaped bayonet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1, 2, 3 and 4, a pre-breaking structure for stamping an electrical element according to an embodiment of the present invention includes an upper die base 7, an upper clamp plate 8, a stripper plate 9, a lower die base 10, a lower die plate 11, a pre-breaking assembly, wherein the upper clamp plate 8 is installed at the lower end of the upper die base 7, the stripper plate 9 is installed at the lower end of the upper clamp plate 8, the lower die plate 11 adapted to the stripper plate 9 is installed at the upper end of the lower die base 10, the pre-breaking assembly is installed between the lower die plate 11 and the stripper plate 9, the pre-breaking assembly includes a stripper plate auxiliary sleeve 1 installed inside the stripper plate 9 and a lower die plate auxiliary sleeve 2 installed inside the lower die plate 11 and corresponding to the stripper plate auxiliary sleeve 1, limiting grooves 3 are respectively formed at opposite ends of the stripper plate auxiliary sleeve 1 and the lower die plate auxiliary sleeve 2, a protection cavity 6 is formed at a corner of the limiting groove 3, and a tungsten steel PG protruding core 4 is movably inserted inside the limiting groove 3, four corners of the tungsten steel PG convex core 4 are provided with pre-breaking heads 5 matched with the protection cavity 6, the sheath 1 is assisted through a stripper plate, the interaction of the two tungsten steel PG convex cores 4 on the sheath 2 is assisted by a lower template, the accuracy of the pre-breaking position of a workpiece is ensured, the workpiece is accurate, the workpiece is easy to break and has no burrs, the broken filaments are left, the pre-breaking effect is good, after one of the pre-breaking heads 5 is damaged, the tungsten steel PG convex cores 4 are movably inserted in the limiting grooves 3, the multi-angle conversion of the tungsten steel PG convex cores 4 can be realized, the pre-breaking heads 5 are converted and used, the durability of the tungsten steel PG convex cores 4 is further improved, the situation that parts are abandoned due to the damage of the pre-breaking heads 5 is avoided, the rest standby pre-breaking heads 5 are protected through the protection cavity 6, the pre-breaking heads 5 are prevented from being damaged due to friction force inside the limiting grooves 3, and the service life of equipment is prolonged.

As shown in fig. 3, in some embodiments, V-shaped bayonets 14 are formed at opposite ends of two limiting grooves 3 on the stripper plate auxiliary sleeve 1 and the lower template auxiliary sleeve 2, a round chamfer structure is arranged at a connection part of a port of the V-shaped bayonet 14 and the tungsten steel PG convex core 4, and one pre-breaking head 5 at the top end of the tungsten steel PG convex core 4 protrudes out of the V-shaped bayonet 14, so that pre-breaking treatment of a workpiece is realized.

As shown in fig. 1 and 2, in some embodiments, the cross section of the pre-breaking head 5 has a trapezoidal structure, and the surface of the pre-breaking head 5 is provided with a titanium plating layer, so that the strength of the pre-breaking head 5 is improved, and the service life of the pre-breaking head 5 is prolonged.

As shown in fig. 3, in some embodiments, the inner side wall of the limiting groove 3 is provided with an anti-slip layer, the anti-slip layer is a stainless steel backing plate, and the anti-slip layer is arranged to improve the stability of the tungsten steel PG convex core 4 after installation.

In some embodiments, as shown in fig. 4, a cutter 13 is installed at one side of the pre-breaking assembly at the lower end of the upper clamping plate 8, a knife slot 12 matched with the cutter 13 is formed in the upper surface of the lower template 11, and the edge cutting process of the workpiece is realized through the engagement between the cutter 13 and the knife slot 12.

As shown in fig. 4, in some embodiments, an insert is installed inside the stripper plate 9 at the lower end of the cutting knife 13, and a slide way slidably connected with the cutting knife 13 is provided inside the insert, so that the stable feeding of the cutting knife 13 is facilitated, and the stability and accuracy during shearing are improved.

As shown in fig. 1 and 3, in some embodiments, there are three protection cavities 6, and the protection cavities 6 are of a cylindrical structure, and the three protection cavities 6 are respectively matched with the other three pre-breaking heads 5 on the convex core 4 of the tungsten steel PG, so that the remaining standby pre-breaking heads 5 are protected by the protection cavities 6, the pre-breaking heads 5 are prevented from being damaged by friction inside the limiting groove 3, and the service life of the device is prolonged.

The principle of the utility model is as follows: when in use, the tungsten steel PG convex core 4 is arranged in the limiting groove 3, the stability of the tungsten steel PG convex core 4 after being arranged is improved through the arrangement of the antiskid layer, at the moment, one pre-breaking head 5 at the top end of the tungsten steel PG convex core 4 protrudes out of the V-shaped bayonet 14, the precision and the accuracy of the pre-breaking position of a workpiece are ensured through the interaction of the two tungsten steel PG convex cores 4 on the stripper plate auxiliary sleeve 1 and the lower template auxiliary sleeve 2, the broken filament is left, the pre-breaking effect is good, the pre-broken workpiece realizes the edge cutting treatment through the cutter 13, after one pre-breaking head 5 is damaged, the multi-angle conversion of the tungsten steel PG convex core 4 can be realized through the movable insertion of the tungsten steel PG convex core 4 in the limiting groove 3, the conversion use of the pre-breaking head 5 is realized, the durability of the tungsten steel PG convex core 4 is further improved, and the parts are prevented from being abandoned due to the damage of the pre-breaking head 5, through the setting of protection chamber 6, protect remaining reserve head 5 of breaking in advance, avoid breaking in advance head 5 and receive frictional force and harm in spacing groove 3 inside, prolong the life of equipment.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a disconnected structure in advance for electric element punching press, includes upper die base (7), punch holder (8), takes off flitch (9), die holder (10), lower bolster (11), disconnected subassembly in advance, punch holder (8) are installed to the lower extreme of upper die base (7), the lower extreme of punch holder (8) is installed and is taken off flitch (9), lower bolster (11) of flitch (9) adaptation are installed and are taken off to the upper end of die holder (10), lower bolster (11) and take off and be equipped with disconnected subassembly in advance between flitch (9), its characterized in that: the pre-breaking component comprises a stripping plate auxiliary sleeve (1) arranged inside a stripping plate (9) and a lower template auxiliary sleeve (2) arranged inside a lower template (11) and corresponding to the stripping plate auxiliary sleeve (1), wherein a limiting groove (3) is formed in the opposite end of the stripping plate auxiliary sleeve (1) and the lower template auxiliary sleeve (2), a protection cavity (6) is formed in the corner of the limiting groove (3), a tungsten steel PG convex core (4) is inserted in the inner part of the limiting groove (3) in an all-movable mode, and four corners of the tungsten steel PG convex core (4) are provided with pre-breaking heads (5) matched with the protection cavity (6).

2. The pre-breaking structure for stamping an electrical component as claimed in claim 1, wherein: v-shaped bayonets (14) are formed in opposite ends of the two limiting grooves (3) in the stripper plate auxiliary sleeve (1) and the lower template auxiliary sleeve (2), and a round chamfer structure is arranged at the joint of the port of each V-shaped bayonet (14) and the tungsten steel PG convex core (4).

3. The pre-breaking structure for stamping an electrical component as claimed in claim 1, wherein: the cross section of the pre-breaking head (5) is of a trapezoid structure, and a titanium plating layer is arranged on the surface of the pre-breaking head (5).

4. The pre-breaking structure for stamping an electrical component as claimed in claim 1, wherein: the inside wall of spacing groove (3) is equipped with the skid resistant course, the skid resistant course is a stainless steel's backing plate.

5. The pre-breaking structure for stamping an electrical component as claimed in claim 1, wherein: the lower end of the upper clamping plate (8) is located on one side of the pre-breaking assembly and is provided with a cutter (13), and the upper surface of the lower template (11) is provided with a cutter groove (12) matched with the cutter (13).

6. The pre-breaking structure for stamping an electrical component as claimed in claim 5, wherein: the inner part of the stripper plate (9) is positioned at the lower end of the cutter (13) and is provided with an insert, and a slide way connected with the cutter (13) in a sliding manner is arranged in the insert.

7. The pre-breaking structure for stamping an electrical component as claimed in claim 1, wherein: the protective cavities (6) are three in number, the protective cavities (6) are of cylindrical structures, and the three protective cavities (6) are respectively matched with the other three pre-broken ends (5) on the tungsten steel PG convex core (4).