CN221087527U

CN221087527U - Clamping type wire electrode conductive device

Info

Publication number: CN221087527U
Application number: CN202323020298.6U
Authority: CN
Inventors: 朱志明; 何应书; 陈志文
Original assignee: Guangzhou Brilliance Automation Technology Co ltd
Current assignee: Guangzhou Brilliance Automation Technology Co ltd
Priority date: 2023-11-08
Filing date: 2023-11-08
Publication date: 2024-06-07
Anticipated expiration: 2033-11-08

Abstract

The utility model discloses a clamping type wire electrode conductive device, which comprises a clamping driving mechanism, wherein the clamping driving mechanism is provided with at least two movable ends, the movable ends can be clamped or separated, at least one movable end is provided with an electrode contact block, at least one electrode contact block is connected with the corresponding movable end through an elastic piece, the electrode contact block is electrically connected with the output end of a pulse power supply, and when the movable ends are in a clamping state, the electrode contact block is electrically connected with a wire electrode. The wire electrode is clamped at two sides by arranging the two movable ends, so that the electric connection between the electrode contact block and the wire electrode is more stable, and a better cutting effect is ensured; at least one electrode contact block is connected with the corresponding movable end through an elastic piece, so that elastic clamping is realized, clamping force is guaranteed, the wire electrode cannot deviate from the original path, abrasion of the wire electrode to an eye mould during reciprocating motion can be effectively reduced, and service life is prolonged.

Description

Clamping type wire electrode conductive device

Technical Field

The utility model relates to the technical field of wire cutting equipment, in particular to a clamping type wire electrode conductive device.

Background

Numerical control wire cutting machining is a branch of electric spark machining, and is to cut a workpiece by spark discharge through a wire electrode (molybdenum wire, copper wire and galvanized wire). In numerical control wire cutting processing, the relative movement of a workpiece and a wire electrode is controlled by digital information, and the numerical control wire cutting processing is commonly used for processing high-hardness materials, fine structures, complex shapes, high-precision dimension parts and high-surface-quality parts.

Numerical control wire cutting machines are generally classified into three types: a fast wire cutting machine, a medium wire cutting machine and a slow wire cutting machine; taking a fast wire-electrode cutting machine as an example, the wire electrode reciprocates at a high speed, and the wire-electrode feeding speed is 8-10 m/s. The working principle is as follows: the wire electrode passes through a pre-drilled small hole on a workpiece, the wire electrode is driven by a wire cylinder to reciprocate alternately through a guide wheel, the workpiece is arranged on a conductive workbench through an insulating plate, and the conductive workbench moves in two coordinate directions of a horizontal plane X, Y respectively according to a given control program to synthesize an arbitrary plane curve track. The pulse power supply applies pulse voltage to the wire electrode and the workpiece, the wire electrode is connected with the negative electrode of the pulse power supply, and the workpiece is connected with the positive electrode of the pulse power supply. When an electric pulse is generated, spark discharge is generated between the wire electrode and the workpiece, the instantaneous elbow at the center temperature of the discharge channel can reach more than 10000 ℃, the workpiece metal is melted at high temperature, even a small amount of the workpiece metal is gasified, the working fluid part between the wire electrode and the workpiece is gasified at high temperature, and the gasified working fluid and metal vapor instantaneously and rapidly expand and have the characteristic of explosion. The thermal expansion and the local micro explosion throw out the melted and gasified metal material to realize the electric erosion cutting processing of the workpiece material.

In the existing numerical control wire cutting machine tools, a single electrode contact block is used for movable contact type electric connection with a wire electrode. Because the single electrode contact block only applies pressure on one side of the wire electrode, the wire electrode can deviate from the original path on one hand, and meanwhile, the single-side contact is not enough in electric connection and is not stable enough, so that the cutting effect is affected.

Disclosure of utility model

The utility model mainly aims to provide a clamping type wire electrode conductive device which solves the problems in the background technology.

In order to achieve the above-mentioned objective, the present utility model provides a clamping type wire electrode conductive device, which comprises a clamping driving mechanism, wherein the clamping driving mechanism is provided with at least two movable ends, the movable ends can be clamped or separated, at least one movable end is provided with an electrode contact block, at least one electrode contact block is connected with the corresponding movable end through an elastic piece, the electrode contact block is electrically connected with the output end of a pulse power supply, and when the movable ends are in a clamped state, the electrode contact block is electrically connected with a wire electrode.

Further, the clamping driving mechanism is provided with two movable ends, at least one movable end is provided with an electrode contact block, and at least one electrode contact block is connected with the corresponding movable end through the elastic piece.

Further, two electrode contact blocks are arranged on one side of the movable ends facing each other, the two electrode contact blocks are arranged in parallel, at least one electrode contact block is connected with the corresponding movable end through the elastic piece, and the two electrode contact blocks are electrically connected with the same output end of the pulse power supply.

Preferably, one of the electrode contact blocks is connected with the corresponding movable end through the elastic piece.

Further, one electrode contact block is connected with the output end of the pulse power supply through a first electrode wire, and the two electrode contact blocks are electrically connected through a second electrode wire.

Optionally, the wire electrode is a molybdenum wire, or a copper wire, or a galvanized wire.

Compared with the prior art, the utility model has the following beneficial effects:

1. The wire electrode is clamped at two sides by arranging the two movable ends, so that the electric connection between the electrode contact block and the wire electrode is more stable, and a better cutting effect is ensured;

2. At least one electrode contact block is connected with the corresponding movable end through an elastic piece, so that elastic clamping is realized, clamping force is guaranteed, the wire electrode cannot deviate from the original path, abrasion of the wire electrode to an eye mould during reciprocating motion can be effectively reduced, and service life is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view ① (clamped state) of the whole structure of embodiment 1 of the present utility model;

FIG. 2 is a schematic diagram ② (separated) showing the overall structure of embodiment 1 of the present utility model;

FIG. 3 is a schematic view of the whole structure (clamped state) of embodiment 2 of the present utility model;

reference numerals illustrate: 100-wire electrode; 1-a clamping driving mechanism; 2-movable end; 3-electrode contact blocks; 4-elastic members; 5-a first electrode line; 6-a second electrode line.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is 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 at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Example 1: referring to fig. 1 and 2, the present utility model proposes a clamping type wire electrode conductive device, which includes a clamping driving mechanism 1, wherein the clamping driving mechanism 1 is provided with two movable ends 2, the two movable ends 2 can be clamped or separated, the two movable ends 2 are provided with electrode contact blocks 3 on opposite sides, the two electrode contact blocks 3 are arranged in parallel, one of the electrode contact blocks 3 is connected with the corresponding movable end 2 through an elastic member 4, the two electrode contact blocks 3 are electrically connected with the same output end of a pulse power supply, specifically, one of the electrode contact blocks is connected with a negative electrode of the pulse power supply through a first electrode wire 5, the two electrode contact blocks 3 are electrically connected through a second electrode wire 6, when the movable ends 2 are in a clamped state, a wire electrode 100 is clamped between the two electrode contact blocks 3, and the electrode contact blocks 3 are electrically connected with the wire electrode 100. The wire electrode 100 is a molybdenum wire, or a copper wire, or a galvanized wire, and in this embodiment, the wire electrode 100 is a molybdenum wire.

The working principle of this embodiment is as follows:

During cutting, the two electrode contact blocks 3 are electrically connected with the negative electrode of the pulse power supply, under the driving action of the clamping driving mechanism 1, the two electrode contact blocks 3 are clamped towards the middle, so that the electrode contact blocks 3 are electrically connected with the molybdenum wire, namely, the molybdenum wire is electrically connected with the negative electrode of the pulse power supply, and at the moment, the workpiece is connected with the positive electrode of the pulse power supply. When an electric pulse is generated, spark discharge is generated between the molybdenum wire 100 and the workpiece, the instantaneous elbow at the center temperature of the discharge channel can reach more than 10000 ℃, the workpiece metal is melted at high temperature, even a small amount of the workpiece metal is gasified, the working fluid between the molybdenum wire 100 and the workpiece is gasified at high temperature, and the gasified working fluid and metal vapor instantaneously and rapidly expand and have the characteristic of explosion. The thermal expansion and the local micro explosion throw out the melted and gasified metal material to realize the electric erosion cutting processing of the workpiece material.

Example 2: referring to fig. 3, this embodiment is different from embodiment 1 in that only one of the movable ends 2 is provided with an electrode contact block 3.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A clamping type wire electrode conductive device, which is characterized in that: including clamping driving mechanism, clamping driving mechanism is equipped with two at least expansion ends, the expansion end can clamp or separate, at least one the expansion end is equipped with the electrode contact piece, at least one the electrode contact piece with correspond the expansion end passes through the elastic component and is connected, the electrode contact piece is connected with pulse power supply's output electricity, works as the expansion end is in the clamp state, the electrode contact piece is connected with the filiform electrode electricity.

2. A clamping wire electrode conductive device as defined in claim 1, wherein: the clamping driving mechanism is provided with two movable ends, at least one movable end is provided with an electrode contact block, and at least one electrode contact block is connected with the corresponding movable end through the elastic piece.

3. A clamping wire electrode conductive device as claimed in claim 2, wherein: the two movable ends are respectively provided with the electrode contact blocks on one side facing the movable ends, the two electrode contact blocks are arranged in parallel, at least one electrode contact block is connected with the corresponding movable end through the elastic piece, and the two electrode contact blocks are electrically connected with the same output end of the pulse power supply.

4. A clamping wire electrode conductive device as claimed in claim 3 wherein: one of the electrode contact blocks is connected with the corresponding movable end through the elastic piece.

5. A clamping wire electrode conductive device as claimed in claim 3 wherein: one electrode contact block is connected with the output end of the pulse power supply through a first electrode wire, and the two electrode contact blocks are electrically connected through a second electrode wire.

6. A clamping wire electrode conduction device as in any one of claims 1-5 wherein: the wire electrode is molybdenum wire, copper wire or galvanized wire.