CN219703160U

CN219703160U - Compound stamping die of transformer hardware

Info

Publication number: CN219703160U
Application number: CN202320913466.5U
Authority: CN
Inventors: 余春银
Original assignee: Dongguan Longhengjun Precision Manufacturing Co ltd
Current assignee: Dongguan Longhengjun Precision Manufacturing Co ltd
Priority date: 2023-04-21
Filing date: 2023-04-21
Publication date: 2023-09-19
Anticipated expiration: 2033-04-21

Abstract

The utility model relates to a transformer hardware composite stamping die in the field of stamping dies, wherein a clamping block is arranged on the bottom surface of a stripper plate, a clamping groove matched with the clamping block and an exhaust groove used for sucking rough materials are arranged on the top surface of a blanking concave-convex die, the clamping groove and the exhaust groove are mutually communicated through a first groove, a vacuum pump is arranged at the other end of the first groove, and the vacuum pump is connected with the first groove through an air pipe. According to the transformer hardware composite stamping die, the clamping blocks, the clamping grooves, the first grooves and the vacuum pump are arranged, so that the attractable area of the stripper plate pressed towards the blanking concave-convex die is increased, the stripper plate is ensured to be stuck to the blanking concave-convex die, the acting force on the spring is reduced, the service life of the spring is prolonged, and meanwhile, the service life of the composite stamping die is prolonged; and the air exhaust groove sucks the woolen on the positioning pin of the blanking concave-convex die, so that the woolen is tightly attached to the blanking concave-convex die, the woolen is prevented from shifting, and the planeness of a punched product is ensured to be good.

Description

Compound stamping die of transformer hardware

Technical Field

The utility model relates to the field of stamping dies, in particular to a transformer hardware composite stamping die.

Background

In one working stroke of the press, the die for simultaneously completing more than two blanking processes at the same part of the die is called a compound blanking die. The basic structural form of the composite blanking die is a forward-loading composite die and a reverse-loading composite die. The composite die with the blanking female die arranged on the upper die is called a flip-chip composite die; the composite die with the blanking female die arranged on the lower die is called as a sequential composite die. The main advantages of the compound die are compact structure, flat product, general precision IT11-ITI0, and sometimes IT8. The common tolerance requirement is higher, and thin materials and soft material parts with difficult feeding and spacing are mostly punched by adopting a composite die. If the common parts are punched, a flip-chip compound die with a fixed die shank and a rigid pushing piece is adopted.

When the die descends, the blanking concave-convex die and the stripper plate need to press the woolen material at the same time, and under the condition that the upper die and the lower die of the die are dead, the stripper plate needs to be stuck to the blanking concave-convex die, so that good flatness of the punched product can be ensured, and the conditions of warping and irregular bright bands can not occur.

The existing transformer hardware composite stamping die has the following problems in the compacting materials: 1) The upper die plate descends to press the spring, so that the stripper plate is stuck to the blanking concave-convex die to press the woolen, but the spring is pressed to be too stressed, so that the service life of the spring is reduced; 2) The woolen is generally punched and then inserted into the positioning pin of the blanking concave-convex die, but excessive punching on the woolen can affect the beautiful appearance of the product.

Disclosure of Invention

The utility model aims to solve the defects and provides a composite stamping die for transformer hardware.

The object of the utility model is achieved by: the utility model provides a compound stamping die of transformer hardware, includes cope match-plate pattern, drift and die holder, has set gradually fixed plate, stripper and blanking concave-convex die between cope match-plate pattern and the die holder, connects through screw and spring between stripper and the fixed plate, and the top surface of blanking concave-convex die is equipped with the locating pin that is used for fixed blank, the bottom surface of stripper is equipped with the chucking piece, and the top surface of blanking concave-convex die is equipped with and is used for with chucking piece complex draw-in groove and the exhaust groove that is used for holding the blank, and the draw-in groove communicates each other through first slot with the exhaust groove, and the other end of first slot is equipped with the vacuum pump, is connected through the trachea between vacuum pump and the first slot.

In the above description, as a further scheme, the clamping blocks are symmetrically arranged on the bottom surface of the stripper plate, the clamping grooves are symmetrically arranged on the top surface of the blanking concave-convex die, the clamping grooves are communicated with the adjacent clamping grooves through the second grooves, and the first grooves, the second grooves and the exhaust grooves are mutually communicated.

In the above description, as a further aspect, the second groove and the exhaust groove are both U-shaped.

In the above description, as a further scheme, two ends of the air pipe are respectively and tightly connected with the vacuum pump and the first groove.

In the above description, as a further scheme, the area of the clamping block is smaller than the area of the clamping groove.

The beneficial effects of the utility model are as follows: according to the transformer hardware composite stamping die, the clamping blocks, the clamping grooves, the first grooves and the vacuum pump are arranged, so that the attractable area of the stripper plate pressed towards the blanking concave-convex die is increased, the stripper plate is ensured to be stuck to the blanking concave-convex die, the acting force on the spring is reduced, the service life of the spring is prolonged, and meanwhile, the service life of the composite stamping die is prolonged; and the air exhaust groove sucks the woolen on the positioning pin of the blanking concave-convex die, so that the woolen is tightly attached to the blanking concave-convex die, the woolen is prevented from shifting, and the planeness of a punched product is ensured to be good.

Drawings

Fig. 1 is a schematic perspective view of a transformer hardware composite stamping die according to the present utility model;

fig. 2 is a front view of a composite stamping die for transformer hardware according to the present utility model;

fig. 3 is a schematic internal perspective view of a blanking concave-convex die in a composite stamping die for transformer hardware in the utility model;

in the figure: the automatic blanking die comprises a 1-upper die plate, a 2-punch, a 3-lower die holder, a 4-fixing plate, a 5-stripper plate, a 6-blanking concave-convex die, a 7-spring, an 8-locating pin, a 9-clamping block, a 10-clamping groove, an 11-exhaust groove, a 12-first groove, a 13-air pipe, a 14-vacuum pump, a 15-second groove and a 16-blank.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be illustrative of the utility model and are not to be construed as limiting the utility model. In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a number", "a plurality" or "a plurality" is two or more, unless specifically defined otherwise. In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances. In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

Referring to fig. 1-3, a specific implementation of a transformer hardware composite stamping die comprises an upper die plate 1, a punch 2 and a lower die holder 3, wherein a fixing plate 4, a stripper plate 5 and a blanking concave-convex die 6 are sequentially arranged between the upper die plate 1 and the lower die holder 3, the stripper plate 5 is connected with the fixing plate 4 through screws and springs 7, a positioning pin 8 for fixing a woolen 16 is arranged on the top surface of the blanking concave-convex die 6, a clamping block 9 is arranged on the bottom surface of the stripper plate 5, a clamping groove 10 matched with the clamping block 9 and an exhaust groove 11 for sucking the woolen 16 are arranged on the top surface of the blanking concave-convex die 6, the clamping groove 10 and the exhaust groove 11 are mutually communicated through a first groove 12, a vacuum pump 14 is arranged at the other end of the first groove 12, and the vacuum pump 14 is connected with the first groove 12 through an air pipe 13.

Specifically, the clamping blocks 9 are symmetrically arranged on the bottom surface of the stripper plate 5, the clamping grooves 10 are symmetrically arranged on the top surface of the blanking concave-convex die 6, the clamping grooves 10 are communicated with the adjacent clamping grooves 10 through the second grooves 15, and the first grooves 12, the second grooves 15 and the exhaust grooves 11 are mutually communicated. The symmetrically arranged clamping blocks 9 are matched with the clamping grooves 10, so that the absorbable area is further increased, and the blanking concave-convex die 6 of the stripper plate 5 is ensured to be stuck.

Specifically, the second grooves 15 and the exhaust grooves 11 are each U-shaped.

In this embodiment, both ends of the air pipe 13 are closely connected to the vacuum pump 14 and the first groove 12, respectively.

In this embodiment, the area of the clamping block 9 is smaller than the area of the clamping groove 10. The side surfaces of the clamping blocks 9 and the bottom surface of the stripper plate 5 are conveniently sucked by the vacuum pump 14, so that the stripper plate 5 is ensured to be stuck to the blanking concave-convex die 6.

The working process of the embodiment of the utility model is as follows: firstly, a woolen 16 is inserted on a locating pin 8, an upper die plate 1 descends, a spring 7 is pressed, then a stripper plate 5 is attached to a blanking concave-convex die 6, the stripper plate 5 drives a clamping block 9 to descend into a clamping groove 10, a vacuum pump 14 is started to exhaust a first groove 12, a second groove 15, an exhaust groove 11 and an air pipe 13, and a punch head 2 is started to punch the woolen 16.

The foregoing is a further detailed description of the utility model in connection with specific further embodiments, and is not intended to limit the practice of the utility model to such descriptions. It should be understood by those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the present utility model, and the present utility model is not limited to the above-mentioned embodiments.

Claims

1. The utility model provides a compound stamping die of transformer hardware, includes cope match-plate pattern, drift and die holder, has set gradually fixed plate, stripper and blanking concave-convex die between cope match-plate pattern and the die holder, connects through screw and spring between stripper and the fixed plate, and the top surface of blanking concave-convex die is equipped with the locating pin that is used for fixed blank, its characterized in that, the bottom surface of stripper is equipped with the chucking piece, and the top surface of blanking concave-convex die is equipped with and is used for with chucking piece complex draw-in groove and the exhaust groove that is used for holding the blank, and the draw-in groove communicates each other through first slot with the exhaust groove, and the other end of first slot is equipped with the vacuum pump, is connected through the trachea between vacuum pump and the first slot.

2. The transformer hardware composite stamping die of claim 1, wherein the clamping blocks are symmetrically arranged on the bottom surface of the stripper plate, the clamping grooves are symmetrically arranged on the top surface of the blanking concave-convex die, the clamping grooves are communicated with the adjacent clamping grooves through second grooves, and the first grooves, the second grooves and the exhaust grooves are mutually communicated.

3. The transformer hardware composite stamping die of claim 2, wherein the second groove and the vent groove are both U-shaped.

4. A transformer hardware composite stamping die according to any one of claims 1-3, wherein two ends of the air pipe are respectively and tightly connected with the vacuum pump and the first groove.

5. A transformer hardware composite stamping die according to any one of claims 1-3, wherein the area of the clamping block is smaller than the area of the clamping groove.