CN215879501U

CN215879501U - Copper head continuous punching die of electronic travel switch

Info

Publication number: CN215879501U
Application number: CN202122229854.5U
Authority: CN
Inventors: 刘望; 高铭杰; 沈光虎
Original assignee: Hangzhou Longma Hardware Tools Co ltd
Current assignee: Hangzhou Longma Hardware Tools Co ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-02-22
Anticipated expiration: 2031-09-15

Abstract

The utility model relates to a copper head connection punching die of an electronic travel switch, which comprises an upper die and a lower die, wherein the upper die comprises an upper die base, an upper backing plate, an upper clamping plate, a floating stop plate and a stripper plate; the upper clamping plate is provided with a plurality of forming dies arranged according to the working procedure, the stop plate and the stripper plate are both provided with inner holes, the inner holes are respectively provided with an inner stop plate and an inner stripper plate, and the inner stop plate and the inner stripper plate are both provided with forming die holes corresponding to the forming dies; the upper clamping plate is provided with a punching die, the shaft center of the punching die is provided with an air hole, the upper backing plate is provided with an air groove, and the position of the air groove corresponding to the punching die is provided with a small hole. The upper die is provided with a plurality of forming dies arranged according to the working procedures, and the forming of the copper head is completed through the plurality of forming dies, so that the tensile fracture caused by overlarge primary tensile quantity is avoided, and the yield is improved; the upper die is provided with an air groove which is communicated with the punching die, and the cutting at the end part of the punching die is blown off by air flow, so that the punching precision is ensured.

Description

Copper head continuous punching die of electronic travel switch

Technical Field

The utility model relates to a continuous stamping die, in particular to a copper head connecting stamping die of an electronic travel switch.

Background

The travel switch is one of position switches, and is a common low-current master control electrical appliance. The contact of the mechanical motion part is operated by the collision to realize the connection or disconnection of the control circuit, thereby achieving a certain control purpose. Generally, such switches are used to limit the position or stroke of the movement of the machine, so that the moving machine can automatically stop, move in reverse, shift or automatically move back and forth according to a certain position or stroke. The contacts of the travel switch are therefore the locations where the travel switch frequently collides.

At present, the electron travel switch contact commonly used adopts the copper head more, and traditional processing is independent processing, and also a product is processed, but the copper head is tensile when tensile, can not once stretch to target in place, need stretch many times and has avoided tensile fracture, and this just causes traditional independent processing, and machining efficiency is low, needs more moulds to cooperate and processes, and manufacturing cost is higher.

Disclosure of Invention

The utility model provides a copper head connecting and punching die of an electronic travel switch, wherein a plurality of working procedures for punching the copper head are arranged on a pair of dies, and feeding is carried out in a stepping mode, so that the continuous punching processing of the copper head of the electronic travel switch is completed; the upper die is provided with the air groove, the air groove is communicated with the punching die, the cutting at the end part of the punching die is blown off by air flow, the cutting of the punching die is avoided, the punching die is prevented from being sucked by the magnetized end part through multiple punching, the punching precision is ensured, and the burrs of a copper head are avoided.

The specific technical scheme of the utility model is as follows: the upper die comprises an upper die base, an upper base plate fixed on the upper die base, an upper clamping plate fixed on the upper base plate, a stop plate and a stripper plate, wherein the stop plate and the stripper plate are in floating connection with the upper die base; the upper clamping plate is provided with a plurality of forming dies arranged according to the working procedure, the stop plate and the stripper plate are both provided with inner holes, the inner holes are respectively provided with an inner stop plate and an inner stripper plate, and the inner stop plate and the inner stripper plate are both provided with forming die holes corresponding to the forming dies; the lower die is provided with an upper jacking structure, and the upper jacking structure comprises a wire spring and an ejector rod; the upper clamping plate is provided with a punching die, the shaft center of the punching die is provided with an air hole, the upper backing plate is provided with an air groove, the position of the air groove corresponding to the punching die is provided with a small hole, and the small hole is communicated with the air hole.

The upper die is provided with a plurality of forming dies arranged according to the working procedures, and the forming of the copper head is completed through the plurality of forming dies, so that the tensile fracture caused by overlarge primary tensile quantity is avoided, and the yield is improved; the multiple forming dies are combined to complete stamping, feeding is performed in a stepping mode during each movement, and the stamping machine is rapid in processing and high in efficiency; the upper die is provided with the air groove, the air groove is communicated with the punching die, the cutting at the end part of the punching die is blown off by air flow, the cutting of the punching die is avoided, the punching die is prevented from being sucked by the magnetized end part through multiple punching, the punching precision is ensured, and the burrs of a copper head are avoided.

Further preferably, the forming die arranged on the upper clamping plate comprises a first stamping die and a plurality of shaping dies, the outer diameters of the first stamping die and the shaping dies are gradually reduced, the first stamping die is positioned on the outer side of the inner hole, and the shaping dies are positioned at the inner hole. The stamping size of the first stamping die is the largest, the height of the first stamping die is smaller than the height of the copper head, and then the copper head is shaped through the shaping dies, so that the copper head is finally obtained, and the stable quality of the continuously formed copper head is ensured.

Further preferably, the lower die is provided with an upper ejection structure corresponding to the position of the first stamping die, the lower die is provided with a combined upper ejection structure corresponding to the position of the shaping die, the combined upper ejection structure comprises a plurality of ejector rods, a knockout plate for mounting the ejector rods and a plurality of wire springs for supporting the knockout plate, and the ejector rods on the knockout plate correspond to the position of the shaping die one by one. The upper jacking structure separates the part of the plate stamped from the lower die, so that the plate can smoothly move forward; the first punching die has the largest punching size, so that a separate upper ejection structure is arranged corresponding to the position of the first punching die,

further preferably, the upper clamping plate is provided with a first separating cutter and a second separating cutter, the first separating cutter is in an arc shape, the first separating cutters are two groups, the two groups of inner arcs are symmetrically arranged, and the second separating cutter is in a symmetrical multi-arc-edge structure. Peripheral position waste material is amputated in advance through first separation cutter and second separation cutter, avoids causing the influence to panel drawing in the forming process.

Further preferably, cutter holes corresponding to the first separation cutter and the second separation cutter are formed in the stop plate and the stripper plate, separation lower dies are respectively arranged at positions corresponding to the first separation cutter and the second separation cutter on the lower die plate, and separation holes are respectively formed in positions corresponding to the first separation cutter and the second separation cutter on the lower backing plate.

Further preferably, at least 2 vacant sites are reserved between the punching die and the last forming die, and the lower die plate is provided with accommodating round holes corresponding to the two vacant sites. A plurality of sizing dies are arranged in succession, and the interval is less each other, in order to avoid causing the weakening to mould intensity, leaves the vacancy between last die-cut mould and the moulded die.

Further preferably, the right side of the upper clamping plate is provided with a waste material cutter, and the lower die holder is provided with a blanking groove corresponding to the waste material cutter.

Preferably, the lower die is provided with two rows of parallel feeding retaining columns which are arranged at intervals, the periphery of the upper part of each feeding retaining column is provided with a groove, the grooves in the same row are positioned on the same plane, the grooves in the two rows are equal in height, and the grooves in the two rows form a plate feeding channel; the feeding bumping post is in a floating state relative to the lower die, a floating spring is arranged at the lower end of the feeding bumping post, and a counter bore is formed in the upper end of the stripper plate, corresponding to the feeding bumping post. The lower die is provided with a plate feeding stop pillar, so that the position accuracy of the plate is ensured, and the plate is assisted to be separated from the lower die by matching with the upper jacking structure, so that the shape of the plate is ensured.

The utility model has the beneficial effects that: the upper die is provided with a plurality of forming dies arranged according to the working procedures, and the forming of the copper head is completed through the plurality of forming dies, so that the tensile fracture caused by overlarge primary tensile quantity is avoided, and the yield is improved; the multiple forming dies are combined to complete stamping, feeding is performed in a stepping mode during each movement, and the stamping machine is rapid in processing and high in efficiency; the upper die is provided with the air groove, the air groove is communicated with the punching die, the cutting at the end part of the punching die is blown off by air flow, the cutting of the punching die is avoided, the punching die is prevented from being sucked by the magnetized end part through multiple punching, the punching precision is ensured, and the burrs of a copper head are avoided.

Drawings

FIG. 1 is a schematic diagram of one configuration of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a schematic view of an upper mold base structure according to the present invention;

FIG. 4 is a schematic view of an upper mat structure according to the present invention;

FIG. 5 is a schematic view of an upper clamping plate according to the present invention;

FIG. 6 is a schematic view of a stopper plate of the present invention;

FIG. 7 is a schematic view of a stripper plate of the present invention;

FIG. 8 is a schematic view of a lower template structure according to the present invention;

FIG. 9 is a schematic view of a lower pad structure according to the present invention;

FIG. 10 is a schematic view of a lower die holder according to the present invention;

FIG. 11 is a schematic view of a bottom plate of the present invention;

FIG. 12 is a schematic view of a striking plate construction of the present invention;

in the figure: 1. the device comprises an upper die base, 2, an upper padding plate, 3, an upper clamping plate, 4, a stop plate, 5, a stripper plate, 6, a lower die plate, 7, a lower padding plate, 8, a lower die base, 9, a lower padding block, 10, a lower supporting plate, 11, a feeding stop pillar, 12, a plate, 13, a wire spring, 14, a beating plate, 15, an ejector rod, 16, a lower die head, 17, a copper head, 18, a punching die, 19, a forming die, 20, a waste cutter, 21, a second separation cutter, 22, a first separation cutter, 23, a guide pillar, 24, an air groove, 25, a small hole, 26, a spring hole, 27, an inner hole, 28, an inner stop plate, 29, a cutter hole, 30, an inner stripper plate, 31, a separation lower die, 32, a separation hole, 33 and a blanking groove.

Detailed Description

The utility model is further described by the following specific embodiments in conjunction with the accompanying drawings.

Example (b):

as shown in fig. 1, 2, 3, 11 and 12, the electronic travel switch copper head 17 continuous punching die comprises an upper die and a lower die, wherein the upper die comprises an upper die base 1, an upper base plate 2 fixed on the upper die base, an upper clamping plate 3 fixed on the upper base plate, a stop plate 4 connected with the upper die base in a floating mode and a stripper plate 5, the stop plate is fixed with the stripper plate, and the lower die comprises a lower supporting plate 10, a lower cushion block 9 arranged on the lower supporting plate, a lower die base 8 supported on the lower cushion block, a lower base plate 7 fixed on the lower die base and a lower die plate 6 fixed on the lower cushion plate. A plurality of coaxial spring holes 26 are formed in the upper die base, the upper base plate, the stop plate and the stripper plate, a spring is arranged in each spring hole of the upper die base, a limit bolt (not shown in the figure) is arranged in each spring hole of the upper base plate, the stop plate and the stripper plate, the lower end of the limit bolt is fixedly connected with the stripper plate, the upper end of the limit bolt is in contact fit with the spring, and the limit bolt is used for limiting the floating distance between the stop plate and the stripper plate relative to the upper clamping plate.

As shown in fig. 1, 2, 4, 5, 6, 7 and 8, the upper clamping plate is provided with a plurality of forming dies 19 arranged according to the working procedure, the stop plate and the stripper plate are both provided with inner holes 27, inner stop plates 28 and inner stripper plates 30 are respectively arranged in the inner holes, and the inner stop plates and the inner stripper plates are both provided with forming die holes corresponding to the forming dies. The upper clamping plate is provided with a punching die 18, the shaft center of the punching die is provided with an air hole, the upper backing plate is provided with an air groove 24, the position of the air groove corresponding to the punching die is provided with a small hole 25, and after the punching die is installed and fixed, the small hole is communicated with the air hole. The forming die that sets up on the punch holder includes first press die and a plurality of sizing die, and the external diameter of first press die and a plurality of sizing die reduces gradually, and first press die is in the hole outside, and a plurality of sizing dies are in hole department. The upper clamping plate is provided with a first separation cutter 22 and a second separation cutter 21, the first separation cutters are in arc shapes, the first separation cutters are two groups, the two groups of inner arcs are symmetrically arranged, and the second separation cutters are in symmetrical multi-arc-edge structures. Cutter holes 29 corresponding to the first separation cutter and the second separation cutter are formed in the stop plate and the stripper plate, separation lower dies 31 are respectively arranged at positions corresponding to the first separation cutter and the second separation cutter on the lower die plate, and separation holes 32 are respectively arranged at positions corresponding to the first separation cutter and the second separation cutter on the lower backing plate. 2 vacant sites are reserved between the punching die and the last forming die, and the lower die plate is provided with accommodating round holes corresponding to the two vacant sites. The right side of punch holder is provided with waste material cutter 20, and the position that the die holder corresponds the waste material cutter is provided with charging chute 33.

As shown in fig. 9 and 10, a plurality of lower dies 16 are arranged on the lower template corresponding to the forming dies, and each lower die has a die cavity matched with the die of the forming die. The lower die is provided with an upper jacking structure which comprises a wire spring 13 and an ejector rod 15. The lower die is provided with an independent upward ejection structure corresponding to the position of the first stamping die, the lower die is provided with a combined upward ejection structure corresponding to the position of the shaping die, the combined upward ejection structure comprises a plurality of ejector rods, a knockout plate 14 for mounting the ejector rods and a plurality of wire springs for supporting the knockout plate, and the ejector rods on the knockout plate correspond to the position of the shaping die one by one. Two rows of parallel feeding retaining columns 11 which are arranged at intervals are arranged at the lower die, grooves are formed in the periphery of the upper portions of the feeding retaining columns, the grooves in the same row are located on the same plane, the grooves in the two rows are equal in height, and the grooves in the two rows form a feeding channel for the plate 12; the feeding bumping post is in a floating state relative to the lower die, a floating spring is arranged at the lower end of the feeding bumping post, and a counter bore is formed in the upper end of the stripper plate, corresponding to the feeding bumping post.

A guide post 23 is arranged between the upper die and the lower die, and the upper die is guided by the guide post when lifting relative to the lower die, so that the matching precision between the forming die and the die cavity of the lower die head is ensured.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. The copper head connecting stamping die for the electronic travel switch is characterized by comprising an upper die and a lower die, wherein the upper die comprises an upper die base (1), an upper base plate (2) fixed on the upper die base, an upper clamping plate (3) fixed on the upper base plate, a stop plate (4) and a stripper plate (5) which are in floating connection with the upper die base, the stop plate and the stripper plate are fixed, the lower die comprises a lower supporting plate (10), a lower cushion block (9) arranged on the lower supporting plate, a lower die base (8) supported on the lower cushion block, a lower base plate (7) fixed on the lower die base and a lower die plate (6) fixed on the lower base plate; the upper clamping plate is provided with a plurality of forming dies (19) which are arranged according to the working procedure, inner holes (27) are respectively formed in the stop plate and the stripper plate, an inner stop plate (28) and an inner stripper plate (30) are respectively arranged in the inner holes, and forming die holes corresponding to the forming dies are respectively formed in the inner stop plate and the inner stripper plate; the lower die is provided with an upper ejection structure, and the upper ejection structure comprises a wire spring (13) and an ejector rod (15); the upper clamping plate is provided with a punching die (18), the axial center of the punching die is provided with an air hole, the upper backing plate is provided with an air groove (24), the position of the air groove corresponding to the punching die is provided with a small hole (25), and the small hole is communicated with the air hole.

2. The electronic stroke switch copper head connecting punching die as claimed in claim 1, wherein the forming die arranged on the upper clamping plate comprises a first punching die and a plurality of shaping dies, the outer diameters of the first punching die and the plurality of shaping dies are gradually reduced, the first punching die is positioned outside the inner hole, and the plurality of shaping dies are positioned at the inner hole.

3. The electronic stroke switch copper head continuous punching die as claimed in claim 2, wherein the lower die is provided with an upper jacking structure corresponding to the position of the first punching die, the lower die is provided with a combined upper jacking structure corresponding to the position of the shaping die, the combined upper jacking structure comprises a plurality of ejector rods, a punching plate for mounting the ejector rods and a plurality of wire springs for supporting the punching plate, and the plurality of ejector rods on the punching plate correspond to the positions of the shaping die one by one.

4. The electronic stroke switch copper head connection punching die according to the claim 1, 2 or 3, characterized in that the upper clamping plate is provided with a first separation cutter (22) and a second separation cutter (21), the first separation cutter is in the shape of an arc, the first separation cutters are in two groups, the two groups are symmetrically arranged in the inner arc, and the second separation cutter is in a symmetrical multi-arc edge structure.

5. The electronic travel switch copper head connection punching die as claimed in claim 4, wherein the stop plate and the stripper plate are provided with cutter holes corresponding to the first separation cutter and the second separation cutter, the lower die plate is provided with separation lower dies (31) at positions corresponding to the first separation cutter and the second separation cutter, and the lower backing plate is provided with separation holes (32) at positions corresponding to the first separation cutter and the second separation cutter.

6. The electronic travel switch copper head connecting die as claimed in claim 1, 2 or 3, wherein at least 2 vacant sites are reserved between the punching die and the last forming die, and the lower die plate is provided with accommodating round holes corresponding to the two vacant sites.

7. The electronic travel switch copper head connection punching die according to claim 1, 2 or 3, characterized in that a scrap cutter (20) is arranged on the right side edge of the upper clamping plate, and a blanking groove (33) is arranged on the lower die base corresponding to the scrap cutter.

8. The electronic stroke switch copper head connecting punch die as claimed in claim 1, 2 or 3, wherein two rows of parallel and spaced feeding stop pillars (11) are arranged at the lower die, grooves are arranged on the periphery of the upper part of each feeding stop pillar, the grooves in the same row are positioned on the same plane, the grooves in the two rows are equal in height, and the grooves in the two rows form a plate feeding channel; the feeding bumping post is in a floating state relative to the lower die, a floating spring is arranged at the lower end of the feeding bumping post, and a counter bore is formed in the upper end of the stripper plate, corresponding to the feeding bumping post.