CN111715825B

CN111715825B - Manufacturing method of support with flat potential

Info

Publication number: CN111715825B
Application number: CN201910213913.4A
Authority: CN
Inventors: 奚蓓蕾; 陆磊; 张斓; 季明星
Original assignee: Shanghai Y&l Lighting Co ltd
Current assignee: Shanghai Yaer Precision Parts Manufacturing Co ltd
Priority date: 2019-03-20
Filing date: 2019-03-20
Publication date: 2022-03-22
Anticipated expiration: 2039-03-20
Also published as: CN111715825A

Abstract

The invention relates to a manufacturing method of a bracket with flat potential, which utilizes a feeder to send straightened wires to a processing position through a slot and a positioning pin on a lower die; pressing down an upper die, closing the die by using the pressure of a punch press of at least 16 tons, and punching the wire into a required shape by using the height difference between the upper die and the lower die; and (3) after the upper die and the lower die are closed, the wire material at the end part is deformed, and the material at one end is extruded into a shape with an upper arc and a lower flat from a circular shape by utilizing the shape of the dies to manufacture the bracket with flat potential. Compared with the prior art, the invention has the advantages that the product is molded at one time, the processing technology is shortened, the labor cost is saved, the grinding is replaced by the material deformation mode at the end part, no waste metal chips are generated, no waste emulsion is generated in the punching machine processing, and the environment is protected.

Description

Manufacturing method of support with flat potential

Technical Field

The invention relates to a manufacturing method of a light source assembly, in particular to a manufacturing method of a bracket with flat potential.

Background

The support is a main component in the light source and mainly has two functions: supporting other components in the light source and connecting with other components in the light source to conduct current. Thus, the two most basic requirements of a rack are:

1. designed in various shapes according to the shapes of other components and positions in the light source;

2. in order to ensure that the stress of the bracket and other components is uniform, the contact part with other components needs to have a large enough contact area and a flat surface.

The existing bracket is processed in the following way: the bent bracket is machined from the bracket, as shown in fig. 1, and then the bracket is arranged in order, and the end of the bracket is ground into the shape as shown in fig. 2 by a flat grinder. The processing mode has long working procedures and large labor consumption, and metal scraps and waste emulsion can be generated in the processing process. There is a need for improvements both from a cost and environmental perspective.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a manufacturing method of a stent with flat potential.

The purpose of the invention can be realized by the following technical scheme:

a method of manufacturing a stent with a flat potential, comprising:

feeding: the straightened wire passes through a slot and a positioning pin on the lower die and is sent to a processing position by a feeder;

forming a bracket: pressing an upper die downwards, closing the dies by using the pressure of a punch press of at least 16 tons, punching the wire into a required shape by using the height difference between the upper die and the lower die, and if the pressure of the punch press is too small, forming cannot be realized;

end part forming: and after the die is closed, the end wire is deformed, the cross section of the end wire is extruded into a shape with an upper arc and a lower flat from a circular shape, and the bracket with flat potential is manufactured by cutting with a cutter.

And a wire passing hole is formed at the inlet of the lower die.

8 locating pins are evenly distributed on the lower die, every two locating pins are arranged in a row, the accurate wire moving direction of the material is guaranteed through the guiding of the 8 locating pins, the material is sent out by the feeder according to the length set by a program, and the feeder stops working after the feeding is finished.

The upper surface of the lower die between the two positioning pins is provided with a lower die wire groove with a horizontal structure.

The upper die is evenly provided with 8 positioning pin inserting holes, and every two positioning pin inserting holes are arranged in a row and are matched with the positioning pins arranged on the lower die in position.

And an upper die wire groove is formed in the lower surface of the upper die between the two positioning pin insertion holes, and the longitudinal section of the upper die wire groove is of an arc-shaped structure.

And a boss protruding towards the lower die is arranged at the outlet of the upper die.

And a platform with the height being shorter than the upper surface of the lower die is arranged at the outlet of the lower die.

The lug boss and the platform bend the wire groove, so that the material with the required size is clamped in the upper and lower wire grooves, and the material does not deform during bending.

And a horizontal lower cutter is arranged at the outlet of the platform.

The upper die is used as an upper cutter, the upper cutter and the lower cutter are both in a 90-degree right angle at the cut, and the cutting of the wire is realized through shearing generated by the relative motion of the upper die and the lower die. The upper die (upper cutter) is moving and the lower cutter is stationary. When the upper die (the upper cutter) moves downwards longitudinally, the right side of the upper die (the upper cutter) and the left side of the lower cutter move relatively to cut off the wire. The horizontal structure under the product is brought about by the shape of the lower die wire groove. The design of the die is such that the forming and the cutting are completed at one time.

Compared with the prior art, the invention has the following advantages:

1. the product is formed in one step, the processing technology is shortened, and the labor cost is saved. The bracket product has higher requirements on the deformation of the bent part, the damage degree cannot reduce the strength of the bracket, and the stamping force needs to be controlled; the extrusion deformation of the end part of the wire and the flatness of the plane are also required, the stamping force is also required to be controlled, the product is stamped at one time, a balance is required to be found between the two forces, the balance cannot be too large, the bent part is damaged, the deformation of the end part cannot be enough due to too small force, and a flat surface with enough area cannot be formed for spot welding;

2. the end part replaces grinding in a material deformation mode, and no waste metal chips are generated;

3. the punch processing does not generate waste emulsion, and is beneficial to environmental protection.

Drawings

FIG. 1 is a schematic view of a bent product;

FIG. 2 is a schematic view of the structure of the end of the product;

FIG. 3 is a schematic structural view of a processing mold;

FIG. 4 is a schematic view of a partial structure of a processing mold during a feeding process;

FIG. 5 is a partial structural view of a processing mold during the molding of the bracket;

fig. 6 is a partial structural view of a processing mold in end portion molding.

In the figure, 1-lower die, 2-wire through hole, 3-positioning pin, 4-lower die wire groove, 5-platform, 6-lower cutter, 7-upper die, 8-boss and 9-upper die wire groove.

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.

Examples

A manufacturing method of a bracket with flat potential comprises the steps of carrying out forming processing on a wire material by using a processing die to obtain the bracket with flat potential, wherein the used processing die has a structure shown in figure 3 and comprises a lower die 1 and an upper die 7. The inlet of the lower die 1 is provided with a threading hole 2. 8 locating pins 3 are evenly distributed on the lower die 1, every two locating pins 3 are arranged in a row, the accurate wire moving direction of the material is guaranteed through the guiding of the 8 locating pins, the material is sent out by the feeder according to the length set by a program, the feeder stops working after the feeding is finished, and a lower die wire groove 4 is formed in the upper surface of the lower die between the two locating pins 3 and is a horizontal groove. 8 positioning pin inserting holes are uniformly distributed in the upper die 7, and each two positioning pin inserting holes are arranged in a row and matched with the positioning pins 3 arranged on the lower die 1 in position. An upper die wire groove 9 is arranged on the lower surface of the upper die between the two positioning pin insertion holes, and the longitudinal section of the upper die wire groove 9 is of an arc-shaped structure. A boss 8 protruding towards the lower die 1 is arranged at the outlet of the upper die 7. The outlet of the lower die 1 is provided with a platform 5 with the height shorter than the upper surface of the lower die 1. The lug boss 8 and the platform 5 bend the wire groove, so that the material with the required size is clamped in the upper and lower wire grooves, and the material does not deform during bending. A horizontal lower cutter 6 is arranged at the outlet of the platform 5.

The processing mould is used for manufacturing the bracket with flat potential, and the following method is adopted:

feeding: the straightened wire passes through a slot and a positioning pin 3 on the lower die 1 and is sent to a processing position by a feeder, as shown in figure 4;

forming a bracket: as shown in fig. 5, the upper die 7 is pressed down, the die is closed with a punch pressure of at least 16 tons, if the punch pressure is too small, the wire can not be formed, the wire is punched into a required shape by utilizing the height difference between the upper die and the lower die, and the shape of the processed product is shown in fig. 1;

end part forming: as shown in FIG. 6, after the upper and lower dies are closed, the end portion of the wire is deformed to extrude the cross section from a circular shape into a shape with an upper arc and a lower flat, and the wire is cut by shearing generated by the relative movement of the upper and lower dies. The upper die (upper cutter) is moving and the lower cutter 6 is stationary. When the upper die (upper cutter) moves downwards longitudinally, the outer side of the upper die (upper cutter) and the inner side of the lower cutter 6 move relatively, the wire is cut off to obtain the support with flat potential, and the structure of the end part is shown in fig. 2. The horizontal structure under the product is brought about by the shape of the lower die wire groove 4, and the die design is such that the forming and the cutting are completed at one time.

The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.

Claims

1. A method of manufacturing a stent with a flat potential, the method comprising:

feeding: the straightened wire is sent to a processing position through a lower die wire groove and a positioning pin on a lower die by using a feeder, wherein the lower die wire groove is a horizontal groove; the lower die is uniformly provided with positioning pins, every two positioning pins are arranged in a row, and the upper surface of the lower die between every two positioning pins in each row is provided with a lower die wire groove; the upper die is uniformly provided with positioning pin inserting holes, every two positioning pin inserting holes are arranged in a row and matched with the positioning pins arranged on the lower die in position, an upper die wire groove is arranged on the lower surface of the upper die between every two positioning pin inserting holes in each row, and the cross section of the upper die wire groove is of an arc-shaped structure;

forming a bracket: pressing an upper die downwards, carrying out die assembly by using the pressure of a punch press of at least 16 tons, bending the wire into a required shape by using the height difference between the upper die and the lower die, wherein a platform with the height lower than the upper surface of the lower die is arranged at an outlet of the lower die, a horizontal lower cutter is arranged at an outlet of the platform, and a boss protruding towards the lower die is arranged at an outlet of the upper die;

end part forming: after the die is closed, the wire at the end part is deformed, the cross section is extruded into a shape with an upper arc and a lower flat part from a circular shape, when the upper die moves downwards longitudinally, the outer side of the upper die and the inner side of the lower cutter generate relative motion to cut the wire, so that the forming and the cutting are finished at one time, and the bracket with flat potential is manufactured.

2. The method for manufacturing the support with the flat potential according to claim 1, wherein a threading hole is formed at an inlet of the lower die.

3. The manufacturing method of the support with the flat potential according to claim 1, characterized in that 8 positioning pins are uniformly distributed on the lower die.

4. The method for manufacturing the support with the flat potential according to claim 1, wherein 8 positioning pin insertion holes are uniformly distributed on the upper die.