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Hollow rivet decomposing device method and production system using said method

A hollow rivet, a part of the technology, applied in the field of hollow rivet disassembly device and disassembly, and the production system using the disassembly, to achieve the effect of preventing damage to the cutting edge of the cutting part and simplifying the structure of the extruded connecting rod

Inactive Publication Date: 2003-10-29
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] However, even after the flange part 11c and the body part 11b are cut off by a cutting tool, the base materials 1 and 2 are connected and placed in a connected state because there is a residual mandrel 12' in the body part 11b of the hollow rivet 10. Therefore, it is necessary to knock the hollow rivet body 11 from the side of the base material 1 with the flange part 11c separated, so that the hollow rivet body 11 is pulled out from the connecting holes 1a, 2a of the base material 1, 2, that is, a secondary operation is required.

Method used

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  • Hollow rivet decomposing device method and production system using said method
  • Hollow rivet decomposing device method and production system using said method
  • Hollow rivet decomposing device method and production system using said method

Examples

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Embodiment 1

[0076] exist figure 1 Among them, symbol 100A represents a hollow rivet dismantling device. This hollow rivet dismantling device 100A has a pair of gripping arms 110, 120 as cutting members, and one end of each gripping arm 110, 120 has a pair of cutting blades 111, 121 that are opposite to each other and can be engaged, and the other end is an operator's cutting edge. Grips (moving parts) 112, 122 for gripping. Since each of the holding arms 110, 120 has the function of making the cutting blades approach or separate from each other, each holding arm 110, 120 is provided with a handle on the side closer to the cutting edges (first blade, second blade) 111, 121. The intersection part is supported by the support shaft 130 and can swing freely.

[0077] Through this hollow rivet disassembly device 100A, the above-mentioned pair of holding arms 110, 120 are rotated around the fulcrum to make the other end of the holding arms 110, 120 approach or leave, and then the pair of cutt...

Embodiment 2

[0094] FIG. 4( a ) to FIG. 4( c ) are schematic structural views of the hollow rivet dismantling device 100B of the present invention.

[0095] figure 1 ~In the hollow rivet dismantling device 100A of embodiment 1 of the present invention shown in Fig. 3 (c), as shown in Fig. 3 (c), after the trunk part 11b is cut off, the flange part 11c separated from the trunk part 11b, even if it is held When the holding arms 110, 120 are opened, they are still sleeved on the ejection pin 140.

[0096] Therefore, when the hollow rivet dismantling device 100A is used, the operator must remove the flange portion 11c inserted by the push-out pin 140 and remaining on the push-out pin 140 after the cutting operation.

[0097] However, the hollow rivet disassembly device 100B of this embodiment has the following structure, that is, when the holding arms 110, 120 are opened and restored to their original positions after the body part 11b is cut off, the legal part 11c remaining on the ejection ...

Embodiment 3

[0109] Figure 5 It is a structural schematic diagram of the hollow rivet dismantling device 100C of the present invention. The hollow rivet dismantling device 100C has a push-out pin 150 that uses a coil spring 170 as an elastic element instead of the pair of push-out links 151 and 152 used in the hollow rivet dismantling device 100A.

[0110] The coil spring 170 applies elastic force to the pair of grip walls 110 , 120 to separate the cutting blades 111 , 121 , and is attached to the pair of grip walls 110 , 120 .

[0111]According to the hollow rivet dismantling device 100C described above, when the grip walls 110 , 120 are not gripped by anyone, the cutting blades 111 , 121 are separated. Therefore, when starting the cutting operation of the hollow rivet 10, the operation process of opening the gripping walls 110, 120 which are normally closed can be omitted, and when the cutting operation of the hollow rivet 10 is completed, the closing gripping wall 110 can be omitted. ...

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PUM

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Abstract

The present invention discloses a hollow rivet decomposition device and a decomposition method and a production system using the decomposition method. The decomposition device has the following features: entering between the hollow rivet flange part and the base material and moving from a direction perpendicular to the axis of the body part toward the center of the through hole. A cutting device that cuts the body part; an extrusion device that presses out the remaining mandrel along the axis of the body part in the direction from the flange part to the expansion part; a moving device that moves the cutting member in the direction of the center of the through hole, and the cutting device The entry device moves the extrusion device into the through hole to push out the remaining mandrel; the body is cut off by the cutting device.

Description

technical field [0001] The present invention relates to a hollow rivet disassembly device, a disassembly method thereof, and a production system using the disassembly method, wherein a hollow rivet inserted into a connection hole of a base material has a body part and a flange part, and the hollow rivet body A through hole is formed in the axial direction from the body part to the flange part, and the through hole is inserted with a shaft part and a mandrel that is integrated with the shaft and whose radial dimension of the head is larger than the diameter of the through hole. After the mandrel is pulled, its head is pulled into the above-mentioned through hole, so that the surrounding wall of the body around the through hole is plastically deformed and expanded, and at the same time, the above-mentioned mandrel is broken and a part of the mandrel remains in the through hole. In this way, the hollow rivet in a connected state with the base material clamped by the expansion par...

Claims

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Application Information

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IPC IPC(8): B26B17/00B21J15/50
CPCB21J15/50Y10T29/49821Y10T29/539Y10T29/5148
Inventor 小岛隆夫地引优一
Owner RICOH KK