JPH0444291Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to crimping punches, and in particular, when replacing crimping punches that are currently disposable, it is possible to continue using the crimping punch by replacing only the crimping tip. This invention relates to an improvement of a suitable caulking punch.

[Conventional technology]

Conventional caulking punches are integrally formed and have a very complicated shape, as shown in FIGS. 6 to 8.

For this reason, the caulking punch 50 has been discarded once it is time to replace it.

[Problem that the invention attempts to solve]

However, conventional caulking punches have a problem of being very expensive because they have a complicated shape and are disposable.

Therefore, an object of the present invention is to reduce the equipment cost and improve the maintainability of the equipment when replacing the caulking punch.

[Means for solving problems]

Therefore, the caulking punch according to the present invention has a split structure consisting of a caulking tip, a chip holder, and a receiving plate, and when replacing the caulking punch,
This device is characterized by a structure that allows continued use by simply replacing the caulking tip.

Specifically, the caulking punch is attached to the tip of a caulking cylinder device, and the caulking punch includes a caulking tip, a tip holder that holds the caulking tip on the outer periphery of the tip of a workpiece press-fitting head, and a receiving plate that supports the caulking force of the caulking tip. In addition, when replacing the caulking punch, only the caulking tip can be replaced.

[Effect]

To explain the operation of the present invention with the above configuration, the staking punch according to the present invention has a split structure consisting of a staking tip, a tip holder, and a receiving plate, so when the staking punch is replaced, it can be used continuously by replacing only the staking tip. be able to.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.

Fig. 1 is a front view showing a schematic structure of a crimping punch according to the present invention, Fig. 2 is a sectional view taken along the - line in Fig. 1, Fig. 3 is a front view showing a schematic structure of a crimping tip, and Fig. 4 is FIG. 3 is a view taken from the direction A in FIG. 3, and FIG. 5 is a view taken from the direction B shown in FIG.

The caulking punch 1 is attached to the tip of a caulking cylinder device 12. The caulking cylinder device 12 is driven by hydraulic pressure and is movable in the direction of arrow P in FIG.

And, the caulking punch 1 is the caulking tip 2.
, a chip holder 4 and a receiving plate 6.

The caulking tip 2 is a round bar processed into a predetermined shape as shown in FIGS. 3 to 5.

In this embodiment, after the shell cup 104 is press-fitted into the through hole 102 of the steering yoke 100 shown in FIG. 2, the end face 106 of the steering yoke 100 is caulked to prevent it from coming off.

The caulking chip 2 is held by the chip holder 4 on a rotation stopper groove 142 formed on the outer circumference near the tip of the workpiece press-fitting head 14.

Further, the workpiece press-fitting head 14 is connected to the shell cup 1.
04 into the through hole 122 of the steering yoke 100
This is for press-fitting into the machine, and is driven by hydraulic pressure.
In FIG. 2, it is movable in the direction of arrow R.

The receiving plate 6 is for supporting the crimping force of the crimping tip 2, and is fixed together with the tip holder 4 to the tip of the crimping cylinder device 12 by a bolt 122.

Note that 16 is a cup holder for holding the shell cup 104 that is press-fitted into the through hole 102 of the steering yoke 100.

18 also holds the caulking tip 2 in the tip holder 4.
This is a set bolt for fixing to the

To explain the operation of the embodiment according to the above configuration, first, the shell cup 104 is press-fitted into the steering yoke 100 by driving and moving the workpiece press-fitting head 14 forward.

Next, by driving the caulking cylinder device 12 and moving it forward, the caulking tip 2 at the tip of the caulking punch 1 caulks the end surface 106 of the steering yoke 100.

In this way, the press-fitting of the shell cup 104 into the steering yoke 100 and the prevention of its removal are completed.

If the caulking punch 1 repeats this action many times, it will eventually come time to replace it.

At this time, the caulking punch 1 according to this embodiment
Since this has a split structure consisting of a swage tip 2, a tip holder 4, and a receiving plate 6, when the swage punch 1 is replaced, the swage punch 1 can be used continuously by replacing only the swage tip 2.

Although specific embodiments of the present invention have been described above, the present invention is not limited thereto, and various other embodiments can be considered by those skilled in the art within the scope of the claims for utility model registration.

For example, in the above embodiment, both the caulking cylinder device and the workpiece press-fitting head are driven by hydraulic pressure, but they may be driven by air pressure instead of hydraulic pressure.

[Effect of idea]

As explained above, the caulking punch according to the present invention has a split structure consisting of a caulking tip, a tip holder, and a receiving plate, and is configured so that it can be continuously used by replacing only the caulking tip when replacing the caulking punch. When replacing the caulking punch, it is possible to reduce the equipment cost and improve the maintainability of the equipment, which is an excellent effect.

[Brief explanation of the drawing]

Fig. 1 is a front view showing a schematic structure of a crimping punch according to the present invention, Fig. 2 is a sectional view taken along the - line in Fig. 1, Fig. 3 is a front view showing a schematic structure of a crimping tip, and Fig. 4 is Fig. 3 is a view seen from direction A in Fig. 3; Fig. 5 is a view seen from direction B in Fig. 3;
FIG. 6 is a front view showing a schematic structure of a conventional caulking punch, FIG. 7 is a cross-sectional view taken along the line -- in FIG. 6, and FIG. 8 is a cross-sectional view taken along the line -- in FIG. 6. 1... caulking punch, 2... caulking tip, 4
... Chip holder, 6 ... Receiving plate, 12 ... Clinching cylinder device, 14 ... Workpiece press-fitting head.

Claims (1)

[Scope of utility model registration request] The caulking punch is attached to the tip of a caulking cylinder device, and the caulking punch is divided into a caulking chip, a tip holder for holding the caulking chip on the outer periphery of the tip of a workpiece press-fitting head, and a receiving plate that supports the caulking force of the caulking chip. A caulking punch characterized in that only the caulking tip can be replaced when the caulking punch is replaced.