CN115383613A - A method for treating burrs in metal inner holes - Google Patents

Abstract

The invention provides a metal inner hole burr treatment method, which is used for processing and forming uniform distribution holes on the surface of a metal material, and enabling a metal inner hole to be smooth, so that the quality of a product is improved. The method comprises the following steps of cutting a metal plate with thickness into a set shape, uniformly distributing corresponding through holes on the surface of the metal plate through a metal etching process, arranging burr sharp corners on the hole walls of the through holes, arranging the metal plate with the through holes in a machining area of a magnetic polishing machine, and driving steel needles in the machining area to polish the burr sharp corners in the metal inner holes by utilizing a rotating magnetic field at the bottom of the magnetic polishing machine, so that burrs of the metal inner holes are removed.

Description

A method for treating burrs in metal inner holes

technical field

The invention relates to the technical field of metal processing, in particular to a method for treating burrs in metal inner holes.

Background technique

A metal material with a certain thickness has a number of small holes arranged on its surface. When the distance between adjacent small holes is relatively large, the metal material can be processed to form corresponding uniformly distributed small holes by stamping; but When the distance between adjacent holes is less than 0.5mm, that is, when the metal material needs to be processed into a hard metal mesh, the stamping method cannot be realized, so it is necessary to find a processing method that can be easily processed, and the metal inner hole The burrs need to be polished so that when the hard metal mesh is in contact with the human body, the burrs will not cause discomfort to the human body. Therefore, it is urgent to find a metal inner hole burr treatment method.

Contents of the invention

In view of the above problems, the present invention provides a metal inner hole burr treatment method, which forms uniformly distributed holes on the surface of the metal material, and makes the metal inner holes smooth, so that the quality of the product is improved.

A method for treating burrs in metal inner holes, characterized in that:

Cut a metal plate with a thickness into a set shape, and then uniformly distribute corresponding through holes on the surface of the metal plate through a metal etching process. The metal plate is placed in the processing area of the magnetic polishing machine, and the magnetic field rotating at the bottom of the magnetic polishing machine drives the steel needle in the processing area to grind the sharp corners of the burrs in the metal inner hole, thereby removing the burrs in the metal inner hole.

It is further characterized by:

The applicable thickness of the metal sheet is 0.2 mm to 0.3 mm;

The diameter of the through hole ranges from 0.2 mm to 0.35 mm;

The distance between adjacent said through holes is 0.3mm-0.5mm;

The applicable thickness of the metal sheet is 0.2mm to 0.3mm. During the metal etching process, the template is used to etch the two surfaces of the metal sheet to form through holes, and the upper and lower positions of the corresponding through holes on the upper surface and the lower surface are ensured. On the premise of mutual overlap, the metal etching operation is carried out separately, and the burr sharp corner is generated at the middle position of the thickness direction of the inner hole wall of the through hole formed by actual processing;

When performing the flip metal etching process, the position positioning should be done in advance when the upper surface is etched to ensure that the center position of the through hole etched on the lower surface and the original upper surface after the flip is overlapped;

The aperture position corresponding to the sharp angle of the burr generated is greater than 0.1 mm, and the sharp angle of the burr in the metal inner hole is polished with a steel needle of 0.1 mm;

The central area of the metal plate is processed to form through holes arranged in an array;

After the metal plate is processed, the burrs and sharp corners in the middle section of the through hole in the thickness direction are removed;

The thickness of the metal plate is 0.25 mm, the diameter of the through holes ranges from 0.2 mm to 0.35 mm, and the distance between adjacent through holes is 0.4 mm.

After adopting the present invention, uniformly distributed through-holes are formed in the central area of the metal plate after the etching operation. Because there are burrs and sharp corners on the inner wall of the through-hole, the metal plate with the through-hole is placed in the processing area of the magnetic polishing machine , using the rotating magnetic field at the bottom of the magnetic polishing machine to drive the steel needle in the processing area to polish the sharp corners of the burrs in the metal inner holes, thereby removing the burrs in the metal inner holes; it forms uniformly distributed holes on the surface of the metal material, and makes the metal The inner hole is smooth, which improves the quality of the product.

Description of drawings

Fig. 1 is a cross-sectional view of the burr sharp corner formed after the through hole corresponding to the invention is etched;

Fig. 2 is a cross-sectional view of the through hole corresponding to the invention after magnetic polishing.

Detailed ways

A metal inner hole burr treatment method, as shown in Figure 1: cutting a metal plate with a thickness into a set shape, and then uniformly distributing corresponding through holes on the surface of the metal plate through a metal etching process, and the inner hole wall of the through hole There are sharp corners of burrs, and then the metal plate with through holes is placed in the processing area of the magnetic polishing machine, and the magnetic field rotating at the bottom of the magnetic polishing machine is used to drive the steel needles in the processing area to grind the sharp corners of the burrs in the metal inner holes, thereby Deburring of metal bores.

The following conditions apply for the entire treatment method:

The applicable thickness of metal sheet is 0.2mm～0.3mm;

The aperture of the through hole ranges from 0.2mm to 0.35mm;

The distance between adjacent through holes is 0.3mm-0.5mm.

During specific implementation, the applicable thickness of the metal sheet is 0.2 mm to 0.3 mm. During the metal etching process, the template is used to etch the two surfaces of the metal sheet to form through holes, so as to ensure the corresponding penetration of the upper surface and the lower surface. On the premise that the upper and lower positions of the holes coincide with each other, the metal etching operation is carried out separately, and a burr sharp corner is generated at the middle position in the thickness direction of the inner hole wall of the through hole formed by actual processing;

When performing the flip metal etching process, the position positioning should be done in advance when the upper surface is etched to ensure that the center position of the through hole etched on the lower surface and the original upper surface after the flip is overlapped;

During specific implementation, the position corresponding to the sharp angle of the burr is larger than 0.1 mm, and the sharp angle of the burr in the metal inner hole is polished with a steel needle of 0.1 mm.

During specific implementation, the central area of the metal plate is processed to form through holes arranged in a circular array; the thickness of the metal plate is 0.25 mm, the aperture range of the through holes is 0.3 mm, and the distance between adjacent through holes is 0.4 mm ; After the metal plate is processed, the burrs and sharp corners in the middle section of the through hole in the thickness direction are removed.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (10)

1. A metal inner hole burr treatment method, characterized in that: the metal plate with thickness is cut into a set shape, and then the corresponding through-holes are evenly distributed on the surface of the metal plate by metal etching process, and the through-holes There are sharp burrs on the wall of the inner hole, and then the metal plate with the through hole is placed in the processing area of the magnetic polishing machine, and the magnetic field rotating at the bottom of the magnetic polishing machine is used to drive the steel needle in the processing area to polish the burrs in the metal inner hole Sharp corners to remove burrs from metal bores. 2. A method for treating burrs in metal inner holes according to claim 1, characterized in that: the applicable thickness of the metal plate is 0.2mm-0.3mm. 3 . The method for treating burrs in metal inner holes according to claim 2 , wherein the diameter of the through holes ranges from 0.2 mm to 0.35 mm. 4 . 4 . The method for treating burrs in metal inner holes as claimed in claim 1 , wherein the distance between adjacent through holes is 0.3 mm to 0.5 mm. 5. A method for treating burrs in metal inner holes as claimed in claim 1, characterized in that: the applicable thickness of the metal sheet is 0.2 mm to 0.3 mm, and the templates are respectively passed on the two surfaces of the metal sheet during the metal etching process. Etching is carried out to form through-holes. Under the premise of ensuring that the upper and lower positions of the corresponding through-holes on the upper surface and the lower surface overlap each other, metal etching operations are performed separately. In the thickness direction of the hole wall of the inner hole of the through-hole formed by actual processing The middle position produces burr sharp corners. 6. A method for treating burrs in metal inner holes as claimed in claim 5, characterized in that: when performing the flipping metal etching process, the position positioning is done in advance when the upper surface is etched, so as to ensure that the lower surface after the flipping is the same as the original upper surface. The center positions of the through holes etched on the surface are coincidently arranged. 7. A method for treating burrs in metal inner holes as claimed in claim 5, characterized in that: the generated burr sharp angle corresponds to an aperture position greater than 0.1 mm, and a 0.1 mm steel needle is used to polish the burrs in the metal inner holes sharp corners. 8. The method for treating burrs in metal inner holes according to claim 1, characterized in that: the central area of the metal plate is processed to form through holes arranged in an array. 9 . The method for treating burrs in metal inner holes according to claim 1 , wherein the sharp corners of burrs in the middle section of the through hole in the thickness direction are removed after the metal plate is processed. 10 . 10. A method for treating burrs in metal inner holes according to claim 1, characterized in that: the thickness of the metal plate is 0.25 mm, the diameter of the through holes ranges from 0.2 mm to 0.35 mm, and the adjacent through holes The spacing distance between the holes is 0.4 mm.

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