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Riveting method and riveting device

A technology of riveting and blank holder, which is applied in the direction of forming tools, metal processing equipment, manufacturing tools, etc., can solve the problems of multi-energy, difficult forming, etc., and achieve the effect of improving the connection strength

Active Publication Date: 2022-04-29
SHENZHEN POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the related art, the punch needs to consume more energy to squeeze part of the plate into the groove, and it is difficult to form some high-strength, low-plastic materials

Method used

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  • Riveting method and riveting device
  • Riveting method and riveting device
  • Riveting method and riveting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Such as figure 1 As shown, the embodiment of the present invention provides a pressure riveting method, the method includes the following steps:

[0049] Step 100, placing at least two plates to be riveted between the blank holder and the mold; wherein, the inside of the blank holder is provided with a punch, the blank holder is connected with a first ultrasonic transducer, and the mold is provided with a Grooves for punch fits;

[0050] Step 102, using a blank holder and a mold to press the riveted parts of at least two sheets to be riveted;

[0051] Step 104, apply the ultrasonic waves emitted by the first ultrasonic transducer through the blank holder to the surface of the plate to be riveted in contact with the blank holder; wherein, the ultrasonic waves emitted by the first ultrasonic transducer are perpendicular to the blank holder The surface of the sheet to be riveted in contact with the circle;

[0052] Step 106 , pressing the punch against the riveting parts ...

Embodiment 2

[0088] Such as figure 2 As shown, the embodiment of the present invention also provides a pressure riveting method, the method comprising:

[0089] Step 200, placing at least two plates to be riveted between the blank holder and the mold; wherein, the inside of the blank holder is provided with a punch, the blank holder is connected to a first ultrasonic transducer, and the mold is provided with a Grooves for punch fits;

[0090] Step 202, using a blank holder and a mold to press the riveted parts of at least two plates to be riveted;

[0091] Step 204, apply the ultrasonic waves emitted by the second ultrasonic transducer through the mold to the contact surfaces between at least two plates to be riveted; wherein, the ultrasonic waves emitted by the second ultrasonic transducer are parallel to at least two The contact surface between the riveted sheets;

[0092] Step 206 , pressing the punch against the riveting parts of at least two sheets to be riveted until the groove is ...

Embodiment 3

[0116] Such as image 3 As shown, the embodiment of the present invention also provides a pressure riveting method, the method comprising:

[0117] Step 300, placing at least two plates to be riveted between the blank holder and the mold; wherein, the inside of the blank holder is provided with a punch, the blank holder is connected to a first ultrasonic transducer, and the mold is connected to a second ultrasonic transducer. 2. Ultrasonic transducer, the mold is provided with a groove matching with the punch;

[0118] Step 302, using a blank holder and a mold to press the riveted parts of at least two plates to be riveted;

[0119] Step 304, apply the ultrasonic waves emitted by the first ultrasonic transducer through the blank holder to the surface of the plate to be riveted in contact with the blank holder; wherein, the ultrasonic waves emitted by the first ultrasonic transducer are perpendicular to the blank holder The surface of the sheet to be riveted in contact with t...

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Abstract

The invention relates to the technical field of press riveting, in particular to a press riveting method and a press riveting device. The method comprises the following steps: placing at least two plates to be riveted between a blank holder and a die; a punch is arranged in the blank holder, the blank holder is connected with a first ultrasonic transducer, and the die is provided with a groove matched with the punch; pressing the riveting parts of the at least two plates to be riveted by using the blank holder and the die; ultrasonic waves emitted by the first ultrasonic transducer act on the surface, making contact with the blank holder, of the to-be-riveted plate through the blank holder; ultrasonic waves emitted by the first ultrasonic transducer are perpendicular to the surface, making contact with the blank holder, of the to-be-riveted plate; and extruding the riveting parts of the at least two plates to be riveted by the punch until the grooves are completely filled with the plates to be riveted. According to the scheme, the punch can be extruded into the groove of the die.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of riveting, and in particular to a riveting method and a riveting device. Background technique [0002] For sheet metal parts (that is, plates), since the plate thickness is usually relatively thin, it does not have the conditions for direct tapping. However, the welding method is more troublesome and costly, so the pressure riveting process has appeared. The riveting process means that during the riveting process, the punch plastically deforms the sheet under external pressure, and further squeezes into the preset groove of the mold to form a mechanical internal lock, thereby achieving a firm connection of at least two sheets. [0003] In order to improve the quality of riveting, ultrasonic waves can be used to assist riveting. However, in the related art, the punch consumes more energy to squeeze part of the plate into the groove, and it is difficult to form some materials with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D39/02B21D37/16
CPCB21D39/02B21D37/16
Inventor 赵伦霍小乐陈伟张亮龚涛甘增康罗义林森
Owner SHENZHEN POLYTECHNIC