CN210498658U

CN210498658U - Cylinder type electrode wire normally-open clamp

Info

Publication number: CN210498658U
Application number: CN201921302112.7U
Authority: CN
Inventors: 黄正辉; 费坚
Original assignee: Wuxi Micro Research Precise Machinery Technology Co ltd
Current assignee: Wuxi Micro Research Precise Machinery Technology Co ltd
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2020-05-12
Anticipated expiration: 2029-08-12

Abstract

The utility model relates to a clip is normally opened to cylinder type wire electrode, be equipped with the fixed bolster of director seat including the below, the upper end of director seat is to extending all around and forming the boss, the inside of director seat is equipped with first cavity and second cavity, fixed bolster and second cavity are located to the both ends branch of director, the second cavity is stretched out to ceramic guide structure's one end, the wire electrode has started to run through the director in proper order from the fixed bolster top, director seat and ceramic guide structure, be equipped with the through-hole of installation cylinder on the lateral wall of boss, the one end that the cylinder stretched into first cavity is connected and is pressed from both sides tight piece, pressing from both sides tight piece and director relative department, set up tight hole along the director lateral wall. The utility model discloses a cylinder control wire electrode normally opens the clip, can accurate control clamping force degree, and the deformation of wire electrode does not surpass the installation scope of wire electrode in the director, and traditional electro-magnet structure and the formula structure that rises mutually can not produce the wire electrode obscission and can not control deformation by a wide margin, has improved spark-erosion machining's precision.

Description

Cylinder type electrode wire normally-open clamp

Technical Field

The utility model belongs to the technical field of the spark-erosion machining technique and specifically relates to a cylinder type electrode silk normally opens clip.

Background

The normally open clamp of the electrode wire is usually arranged on a guider, is an auxiliary wire clamping tool designed for an electric spark machine tool, and is kept in an open state in the machining wire feeding process. The traditional normally-open clamp adopts an electromagnet to drive a plastic wire pressing block to fix a wire electrode on a clamping surface, so that when the normally-closed clamp at the upper part of an electric spark machine tool is opened, the wire electrode cannot move relative to the machine tool due to gravity or other external forces. The wire clamping force is low, and the mini push-out type electromagnet can only be adopted due to limited spatial position, so that the electromagnet is easy to lose effectiveness after long-term use, and the accuracy and the use safety of wire feeding processing are influenced. The structure of part lathe has also made improvement, and normally open the clamp design for the gasbag rises tightly the formula, but the clamp force is difficult to control when the gasbag is doing the tight motion that rises, and the electrode wire is easy to be crooked because of the atress is uneven, and the gasbag rises tightly formula structure complicacy, and the maintenance is inconvenient.

SUMMERY OF THE UTILITY MODEL

The applicant provides a cylinder type electrode wire normally-open clamp aiming at the defects in the prior art, the clamping force of the electrode wire can be accurately controlled, the clamping force is uniform and stable, the deflection of the electrode wire is small after the electrode wire is clamped, and the defects that the clamping force is difficult to adjust in the traditional clamping mode and the electrode wire is greatly uncontrollably deformed are overcome.

The utility model discloses the technical scheme who adopts as follows:

a cylinder type electrode wire normally-open clamp comprises a fixed support, a guide seat is arranged below the fixed support, a boss is formed by extending the upper end of the guide seat to the periphery, a first cavity and a second cavity are respectively arranged in the guide seat from top to bottom, one end of a guide is arranged in the fixed support, the other end of the guide penetrates through the first cavity and extends into the second cavity, one end of a ceramic guide structure is arranged in the second cavity, the other end of the ceramic guide structure extends out of the second cavity, one end of an electrode wire is arranged above the fixed support, the other end of the electrode wire sequentially penetrates through the guide, the guide seat and the ceramic guide structure and extends out of the bottom end of the ceramic guide structure, a through hole is formed in the side wall of the boss, a cylinder is arranged in the through hole, one end of the cylinder extending into the first cavity is connected with a clamping block, and the, and a clamping hole is formed along the side wall of the guider.

The further technical scheme is as follows:

the clamping block is of a cylindrical structure, the length of the clamping block is 4-5 mm, and the diameter of the clamping block is 5-6 mm;

the clamping block is of a hard plastic structure;

the diameter of the cylinder is 5 ~ 6 millimeters, and the stroke of cylinder is 1 ~ 3 millimeters, and the length of cylinder is 26 ~ 27 millimeters, and the clamp force of cylinder is 3 ~ 5 newtons.

The utility model has the advantages as follows:

the utility model discloses compact structure, simple to operate, through the switching of cylinder control wire electrode normally opening clip, can accurately control the clamping force degree, and the maximum deformation of wire electrode does not surpass the installation space of wire electrode in the director, traditional electro-magnet structure gentleness formula structure relatively, the clamping-force is changeed the adjustment, and the wire electrode deflection is littleer, can not produce the wire electrode obscission because of the clamp force is not enough, also can not produce the uncontrollable deformation of wire electrode because of the clamp force is uneven, the precision of spark-erosion machining has been improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Figure 2 is the cylinder structure enlarger of the utility model.

Wherein: 1. fixing a bracket; 2. a cylinder; 201. a clamping block; 202. a clamping hole; 3. a guider seat; 4. a ceramic guide structure; 5. a guide; 6. and (4) electrode wires.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in figure 1, the utility model comprises a fixed bracket 1, a guider seat 3 is arranged below the fixed bracket 1, the upper end of the guider seat 3 extends to the periphery to form a boss 301, a first cavity 302 and a second cavity 303 are respectively arranged in the guider seat 3 from top to bottom, one end of a guider 5 is arranged in the fixed bracket 1, the other end passes through the first cavity 302 and extends into the second cavity 303, one end of a ceramic guiding structure 4 is arranged in the second cavity 303, the other end of the ceramic guiding structure 4 extends out of the second cavity 303, one end of an electrode wire 6 is arranged above the fixed bracket 1, the other end sequentially passes through the guider 5, the guider seat 3 and the ceramic guiding structure 4 and extends out from the bottom end of the ceramic guiding structure 4, a through hole is arranged on the side wall of the boss 301, an air cylinder 2 is arranged in the through hole, one end of the air cylinder 2 extending into the first cavity 302 is connected with, and a clamping hole is formed on the side wall of the guide device at the position, opposite to the guide device, of the clamping block. The clamping block 201 is of a cylindrical structure, the length of the clamping block 201 is 4-5 mm, the diameter of the clamping block 201 is 5-6 mm, the clamping block 201 is of a hard plastic structure, the diameter of the cylinder 2 is 5-6 mm, the stroke of the cylinder 2 is 1-3 mm, the length of the cylinder 2 is 26-27 mm, and the clamping force of the cylinder 2 is 3-5 newtons.

The utility model discloses a concrete working process as follows:

when the electrode wire 6 normally feeds, the utility model discloses be in normally open state, press from both sides tight piece 201 this moment and be located and press from both sides outside hole 202 or the part stretches into and press from both sides tight hole 202 but not contact electrode wire 6. When the normally closed clip of spark-erosion machine tool upper end is opened, the utility model discloses get into closed state, press from both sides tight piece 201 promptly and stretch into in pressing from both sides tight hole 202 to press wire electrode 6 on the mounting hole pore wall that wire electrode 6 was seted up in the inside of director 5 with presetting the packing force. The clamping block 201 is of a hard plastic structure, and the surface of the clamping block has no sharp edges and corners, so that the electrode wire 6 cannot be damaged. The deformation range of the wire electrode 6 is limited in the mounting hole inside the guide 5, the deformation amount is small, and the influence on the processing precision is small. In the pressing process, the clamping blocks 201 uniformly apply pressing force, the wire electrode 6 cannot deform uncontrollably in direction, the size of the pressing force can be accurately controlled through means such as a servo motor and the like, corresponding adjustment can be carried out along with the change of the wire electrode 6, and the use is more flexible.

The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made within the scope of the invention.

Claims

1. A cylinder type electrode wire normally-open clamp comprises a fixing support (1), a guide seat (3) is arranged below the fixing support (1), the upper end of the guide seat (3) extends to the periphery to form a boss (301), a first cavity (302) and a second cavity (303) are respectively arranged in the guide seat (3) from top to bottom, one end of a guide (5) is arranged in the fixing support (1), the other end of the guide (5) penetrates through the first cavity (302) to extend into the second cavity (303), one end of a ceramic guide structure (4) is arranged in the second cavity (303), the other end of the ceramic guide structure (4) extends out of the second cavity (303), one end of an electrode wire (6) is arranged above the fixing support (1), and the other end of the electrode wire sequentially penetrates through the guide (5), the guide seat (3) and the ceramic guide structure (4) and extends out of the bottom end of the ceramic guide structure (4), the method is characterized in that: the side wall of the boss (301) is provided with a through hole, an air cylinder (2) is arranged in the through hole, one end, extending into the first cavity (302), of the air cylinder (2) is connected with a clamping block (201), and a clamping hole (202) is formed in the position, opposite to the guider (5), of the clamping block (201) along the side wall of the guider (5).

2. The cylinder type wire electrode normally open clamp according to claim 1, wherein: the clamping block (201) is of a cylindrical structure, the length of the clamping block (201) is 4-5 mm, and the diameter of the clamping block (201) is 5-6 mm.

3. The cylinder type wire electrode normally open clamp according to claim 2, wherein: the clamping block (201) is of a hard plastic structure.

4. The cylinder type wire electrode normally open clamp according to claim 1, wherein: the diameter of the air cylinder (2) is 5-6 mm, the stroke of the air cylinder (2) is 1-3 mm, the length of the air cylinder (2) is 26-27 mm, and the clamping force of the air cylinder (2) is 3-5N.