JP3137468U - Rivet machine - Google Patents

Abstract

A rivet machine that has a complicated structure and provides a function of rapid rivet fixing.
A rivet, a transport pipe for transporting the rivet, an outlet sleeve, and a cylinder device for press-fitting the rivet are included. The rivet includes a central shaft and a sleeve, the sleeve has an inner groove, a flange is formed at one end, the other end branches into two, and the central shaft extends in the axial direction from the head and the head. A shaft portion is provided, and a portion of the shaft portion is received in the inner groove of the sleeve. The rivet is housed in the outlet channel of the outlet sleeve, and the flange is brought into a preliminary state by abutting against the radially contracting portions of the plurality of expansion valve pieces of the outlet sleeve, and the cylinder device hits the rivet with the hammer head to complete the mounting. To do.
[Selection] Figure 2

Description

  The present invention relates to a kind of rivet machine, and more particularly to a new rivet machine that is convenient for assembly.

  For industrial or interior use, rivets are used as joining parts between plates, and the method is to make a hole in the overlapping part of two plates and then insert a rivet into the hole. It is also applied to the back plate of displays or computer cases. Many of the known rivet fixings were done manually.

  Manual rivet fixing work takes time and effort, and the assembly efficiency becomes low, which has led to the emergence of mechanical equipment that can improve rivet fixing efficiency. It has a hammer pin design and is driven by a hammer pin to fix it.

  An object of the present invention is to provide a rivet machine that can perform a rivet fixing operation quickly, is convenient, and has a simple structure.

The invention of claim 1 is a rivet machine,
A rivet comprising a central shaft and a sleeve, the central shaft including a shaft and a head, the shaft extending axially from the bottom of the head, and forming a flange at one end of the sleeve A bifurcated portion at the other end, an inner groove provided so as to penetrate the sleeve extends from the flange to the bifurcated portion, the shaft portion of the central shaft is longer than the sleeve, and the shaft portion The rivet, a portion of which is received in the inner groove of the sleeve;
A transport pipe for transporting the rivets;
An outlet sleeve comprising a body and a plurality of expansion valve pieces, the body including an outlet channel, the two ends of the outlet channel communicating with the transport tube and the external environment, each expansion valve piece comprising the body The outlet sleeve, which is more axially stretched and includes radially tapered portions, wherein the inner diameter of these tapered portions is smaller than the outer diameter of the flange of the rivet;
A cylinder device comprising a hammerhead aligned with the outlet channel; and
The rivet machine is characterized by including
The invention of claim 2 is the rivet machine according to claim 1, characterized in that the head of the rivet has an arc shape.
The invention of claim 3 is the rivet machine according to claim 1, characterized in that an overlapping space is provided in the head of the rivet so as to be recessed and accommodate the flange. .
The invention of claim 4 is the rivet machine according to claim 1, characterized in that the two forks of the rivet are separated from each other by a predetermined distance.
The invention of claim 5 is the rivet machine according to claim 1, wherein at least two inclined surfaces are formed on the inner surface of the outlet sleeve, and the at least two inclined surfaces are inward in the radial direction and are formed in the gradually reducing portions. It is a rivet machine that is characterized by tilting toward it.

  The rivet machine of the present invention has a new structure, which is not present in the prior art, and can be operated quite conveniently and quickly when a plurality of workpieces are coupled with rivets, thereby increasing the rivet fixing efficiency.

  The rivet machine of the present invention includes a rivet, a transport pipe, an outlet sleeve, and a cylinder device. The rivet described above includes a central shaft and a sleeve. The central shaft includes a shaft portion and a head portion, and the shaft portion of the central shaft extends in the axial direction from the bottom portion of the head portion. A flange is formed at one end of the sleeve, the other end is bifurcated, an inner groove is further provided in the sleeve, and the inner groove extends from the flange end and branches. The shaft portion of the central shaft is longer than the sleeve, and a portion of the shaft portion is accommodated in the inner groove of the sleeve.

  The outlet sleeve described above includes a body and a plurality of expansion valve pieces. The body includes an outlet channel, two ends of which communicate with the transport tube and the external environment, respectively. Each expansion valve piece extends in the axial direction from the main body, and includes a radially contracting portion. The inner diameter of the radially contracting portion is smaller than the outer diameter of the rivet flange. The cylinder device has a hammerhead, which is aligned with the outlet channel of the outlet sleeve described above.

  The head of the rivet described above can be an arcuate head, and an overlapping space can be recessed inwardly on the head of the rivet, and this overlapping space can accommodate the flange of the rivet. The two rivets described above are spaced apart from each other by a predetermined distance or substantially in contact with each other.

  The expansion valve piece of the above-mentioned outlet sleeve can be made into four pieces, and is installed annularly at an equal angle. A stopper sheet can be assembled in the above-mentioned transport pipe, which is used to selectively open or close the transport state of the transport pipe selectively.

  At least two inclined surfaces can be formed on the inner surface of the outlet sleeve described above, for example, so as to protrude from the surface of the expansion valve piece. The at least two inclined surfaces are inward in the radial direction and inclined toward the gradually contracting portion. If two slopes are provided, the installation will be in the circumferential direction and facing each other. If three or more are installed, they are installed in an equiangular distribution manner.

  The position of the slope described above may be a position where the flange of the rivet contacts the expansion valve piece of the outlet sleeve when the head of the rivet contacts the slope.

  FIG. 1 is a display view of a rivet machine according to a preferred embodiment of the present invention. In this embodiment, the rivet machine includes a material box 21, an airframe 20, a collecting pipe 9, and a machine head 22. The transport pipe 11 is located in the collecting pipe 9. In the material box 21, rivets for preliminary use are accommodated and communicated with the machine body 20. The rivet passes from the material box 21 to the machine head 22 through the airframe 20 and the transport pipe 11 in the collecting pipe 9.

  In addition, refer to the machine head sectional view of FIG. 1 in FIG. The collecting pipe 9 and the machine head 22 communicate with each other, and the transport pipe 11 in the collecting pipe 9 is also extended to a specific position inside the machine head 22 by an independent channel method. An outlet sleeve 12, a cylinder device 13, and a stopper piece 24 are further provided inside the machine head 22, and the machine head 22 communicates with the outside through the outlet sleeve 12. The stopper piece 24 is controlled by the switch 23 to selectively close or open the transport pipe 11.

  The outlet sleeve 12 described above is assembled near the distal end in the machine head 22 and includes a body 121 and four expansion valve pieces 122 that are annularly mounted at equal angles. Each expansion valve piece 122 extends in the axial direction from the main body 121 and includes a diametrically tapered portion 1221. The body 121 includes an outlet channel 1211 whose two ends communicate with the transport tube 11 and the external environment.

  The rivet 10 transported through the transport pipe 11 due to the communication between the transport pipe 11 and the outlet channel 1211 is dropped to the outlet channel 1211, and for example, the end position of the transport pipe 11 is directly aligned with the outlet channel 1211. Preferably, the tube diameter of the transport tube 11 is provided substantially the same as or slightly larger than the maximum outer diameter of the rivet 10 so that the rivet 10 is dropped into the outlet channel 1211 in the correct orientation.

  The cylinder device 13 includes a hammer head 131, a cylinder trachea 132, and a cylinder switch 133. The hammer head 131 is aligned with the outlet channel 1211, the cylinder trachea 132 is connected to the cylinder switch 133, and the cylinder switch 133 undertakes control of gas supply to the cylinder device 13.

  3 and 4 are a three-dimensional view and a cross-sectional view of the rivet of FIG. 1, respectively. The rivet 10 of the rivet machine includes a central shaft 101 and a sleeve 102. The central shaft 101 includes a shaft portion 1011 and an arc-shaped head portion 1012. Among them, the shaft portion 1011 extends in the axial direction from the bottom of the head portion 1012. The head portion 1012 of the central shaft 101 further has an overlapping space 1013 that is recessed inward.

  A flange 1021 is formed at one end of the sleeve 102, and a fork 1022 that is spaced a predetermined distance D from each other is provided at the other end. The flange 1021 can be accommodated in the overlapping space 1013 of the head 1012 described above. The sleeve 102 is further provided with an inner groove 1023 that extends from the flange 1021 to the fork 1022 and gradually shrinks. The shaft portion 1011 of the central shaft 101 is longer than the sleeve 102, and a part of the shaft portion 1011 is accommodated in the inner groove 1023 of the sleeve 102. The outer diameter of the flange 1021 of the rivet 10 is larger than the inner diameter formed by the gradually reducing portion 1221 of the outlet sleeve 12.

  In addition, refer also to FIG. 2, but a slope 1212 is formed on the inner surface of each expansion valve piece 122 of the outlet sleeve 12, and the slope 1212 is inward in the radial direction and is formed in the gradually reducing portion 1221. Tilt toward. The installation position of the inclined surface 1212 is a position where the flange 1021 of the rivet 10 contacts the expansion valve piece 122 of the outlet sleeve 12 when the head portion 1012 of the rivet 10 contacts the inclined surface 1212.

  The operation of the rivet machine will be described below with reference to FIGS. When the power is turned on and the operation state is set, the rivet located in the material box 21 receives air driving force and is transported along the machine body 20 and the transport pipe 11 to the machine head 22, and the transport pipe 11 inside the machine head 22. It reaches the end and falls into the outlet channel 1211. First, the flange 1021 of the rivet 10 comes into contact with and is engaged with the gradually contracting portion 1221 of the outlet sleeve 12, and at this time, a part of the rivet 10 is exposed from the machine head 22, and the exposed portion of the rivet 10 is thereby exposed to the workpieces 31 and 32. The rivet hole 33 can be aligned.

  Next, refer to FIG. 4 and FIG. FIG. 5 is a display diagram at the moment when rivets are fixed. After the rivet 10 is aligned with the rivet holes 33 of the workpieces 31, 32, the cylinder device 13 is activated to actuate the hammerhead 131 to give an impact toward the outlet channel 1211, and subsequently the head of the rivet 10. The part 1012 is pressed. After the rivet 10 is pressed by the hammer head 131, the shaft portion 1011 of the central shaft 101 moves downward in the inner groove 1023, and at the same time, the rivet 10 widens the gradually contracting portion 1221 of the outlet sleeve 12, and the outlet A part of the sleeve 102 is separated from the sleeve 12 and enters the rivet hole 33. The rivet 10 presses the surface of the workpiece 31 with its flange 1021, and the center shaft 101 continues to enter the sleeve 102 and expands the fork 1022 of the sleeve 102 as the hammer head 131 continues to press. The two workpieces 31, 32 are riveted by a fork 1022 having a relatively large outer diameter after expansion.

  The above-described embodiments are merely examples for explaining the present invention, and the scope of rights claimed by the present invention is not limited to the above-described embodiments according to the description of the claims of the registration of the utility model.

1 is a display view of a rivet machine according to a preferred embodiment of the present invention. It is sectional drawing of the machine head in FIG. It is a three-dimensional view of the rivet in FIG. It is sectional drawing of the rivet in FIG. It is a display figure of the moment of completion of the rivet combination in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 9 Collecting pipe 10 Rivet 101 Central axis 1011 Shaft part 1012 Head part 1013 Overlapping space 102 Sleeve 1021 Flange 1022 Fork 1023 Inner groove 11 Transport pipe 12 Outlet sleeve 121 Main body 1211 Outlet channel 1212 Slope 122 Expansion valve piece 1221 Reducing part 13 Cylinder device 131 Hammer Head 132 Cylinder Trachea 133 Cylinder Switch 20 Machine 21 Material Box 22 Machine Head 23 Switch 24 Stopper Pieces 31, 32 Workpiece 33 Rivet Hole

Claims (5)

In the rivet machine
A rivet comprising a central shaft and a sleeve, the central shaft including a shaft and a head, the shaft extending axially from the bottom of the head, and forming a flange at one end of the sleeve A bifurcated portion at the other end, an inner groove provided so as to penetrate the sleeve extends from the flange to the bifurcated portion, the shaft portion of the central shaft is longer than the sleeve, and the shaft portion The rivet, a portion of which is received in the inner groove of the sleeve;
A transport pipe for transporting the rivets;
An outlet sleeve comprising a body and a plurality of expansion valve pieces, the body including an outlet channel, the two ends of the outlet channel communicating with the transport tube and the external environment, each expansion valve piece comprising the body The outlet sleeve, which is more axially stretched and includes radially tapered portions, wherein the inner diameter of these tapered portions is smaller than the outer diameter of the flange of the rivet;
A cylinder device comprising a hammerhead aligned with the outlet channel; and
A rivet machine characterized by including   2. The rivet machine according to claim 1, wherein the head of the rivet has an arc shape.   2. The rivet machine according to claim 1, wherein an overlap space is provided in the head portion of the rivet so as to be recessed in the head to accommodate the flange.   2. A rivet machine according to claim 1, characterized in that the two forks of the rivet are separated from each other by a predetermined distance.   2. The rivet machine according to claim 1, wherein at least two inclined surfaces are formed on the inner surface of the outlet sleeve, and the at least two inclined surfaces are inward in the radial direction and inclined toward the gradually contracting portion. And a rivet machine.

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