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A combined punching riveting method and device

A stamping riveting and riveting technology, which is applied in the field of metal processing, can solve the problems of inability to clamp the coaxiality of parts, smooth surface requirements, small workpiece size, etc., and achieve good pressing effect, good end surface fit, and coaxiality size. high precision effect

Active Publication Date: 2017-10-13
GUIZHOU HONGLIN MACHINERY
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  • Description
  • Claims
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Problems solved by technology

[0003] In order to solve the problems of small size of the workpiece during rotary riveting, the surface must be smooth and cannot be clamped, or the coaxiality between parts has high requirements, etc., the present invention provides a combined stamping riveting with simple and compact structure, simple installation and debugging, and convenient maintenance. Method and device

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  • A combined punching riveting method and device
  • A combined punching riveting method and device

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Embodiment 1

[0024] Such as figure 1 As shown, a certain type of product in production requires riveting thin plate parts with a thickness of 1.5mm to a cylindrical support to ensure that the riveting is firm and the coaxiality between parts is controlled within 0.04mm. The thickness of the thin plate part is 1.5mm, the diameter of the outer circle is 26mm, and the diameter of the middle hole is 4.3mm. The support is three-section cylindrical, with a through hole in the middle with a diameter of 2.8mm. The outer diameter of the first section of the cylinder at the upper end is 4.2mm and the length is 2.6mm. The outer diameter of the middle section of the cylinder is 11mm and the length is 8.8mm. The diameter of the third section of the cylinder is 9.1mm long 9.1mm. Among them, the first section is the rivet part, which is used for riveting the thin plate part to the part. Using the combined stamping riveting device of the present invention to rivet thin plate parts can ensure that the th...

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Abstract

The invention discloses a method and device for combined stamping riveting. The method for combined stamping riveting comprises the steps that 1, a riveting puncher pin (2) assembly is driven by a press bar (1) of a press machine to be returned upwards to the highest point; 2, a supporting part and a sheet part of a workpiece (6) are installed in a positioning hole of a positioning base (7); 3, the press bar (1) of the press machine is re-started to be pressed downwards and moves to the position of an adjusted maximum stroke till a rivet of the workpiece (6) is turned over and deformed; and 4, the press bar (1) of the press machine is returned, the workpiece (6) is taken down, and riveting of the workpiece (6) is completed. According to the device for combined stamping riveting, a press machine is adopted to conduct riveting on the workpiece, riveting of the workpiece is uniform, stable and good in compression effect; in addition, by arranging the special structure, the coaxiality of the workpiece can also be ensured, and damage of the cylindrical surface of the workpiece is avoided. The device for combined stamping riveting is suitable for conducting riveting on the small-size sheet workpiece, and the effects that the riveted part is compact and reliable, the coaxiality dimensional precision is high, and end face attaching is good can be ensured.

Description

technical field [0001] The invention relates to a combined stamping riveting method and a device for riveting small-sized thin plate workpieces, which belong to the technical field of gold processing. Background technique [0002] In the existing riveting technology of small-sized thin plate workpieces, riveting machines are mostly used for rotary riveting. The workpiece is fixed on the base, and the rivet is flanged by the high-speed rotating riveting head. Although this riveting method has stable riveting quality and uniform flanging for ordinary workpieces, it is difficult for workpieces with high surface requirements, small size and clamping. , it is difficult to ensure the coaxial relationship between the parts of the riveted workpiece by rotary riveting. In order to ensure that the riveted small-sized thin plate workpiece can not only meet the coaxiality relationship between the parts, but also effectively fit the end faces, the positioning base, riveting punch, pre-c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21J15/12B21J15/36B21J15/42B21J15/40
CPCB21J15/12B21J15/36B21J15/40B21J15/42
Inventor 李纯富胡霞宋启龙韩克林
Owner GUIZHOU HONGLIN MACHINERY
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