JP4643816B2 - Chucking device for pachinko ball launcher - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a chuck device for correctly chucking a distance dimension of a coil spring tip from a rod rotation shaft hole and a relative angle of a press-fitting portion in a pachinko ball launching rod processing machine.
[0002]
[Prior art]
Conventionally, with respect to stable flying of the pachinko ball, the distance from the rod rotation shaft hole and the relative angle between the tip of the coil spring press-fitted into the rod tip are greatly affected. For this reason, the distance dimension and the relative angle between the rod body and the press-fit portion are important factors in cutting accuracy.
In the conventional cutting machine, as shown in FIGS. 3 and 4, a hook setting jig base 10 is provided in the chuck main body, and the hole setting jig base 10 has a hole guide using the rotary shaft hole 11 as a guide. The member 12 is provided, the abutting jig 13 is provided at the back of the tip processing portion, and the scissors 14 are set on the guide jig base 10, and then the plate 14 is pressed by hand against the abutting jig 13 behind the tip processing portion. Was chucking.
[0003]
[Problems to be solved by the invention]
However, this method was extremely dangerous because it was chucked while being pressed by hand. In addition, since the dimensional accuracy is determined by the pressing force, there is a large variation among workers, and there is a problem that the worker is painful to reduce the variation and strongly press.
[0004]
[Means for Solving the Problems]
The present invention has been made to solve the above-mentioned problems, and in a cutting machine for press-fitting a coil spring of a pachinko ball launching heel tip portion, a heel set jig provided with a stopper member of the heel body portion on the chuck body portion. A tool base is provided, and a hole guide member that guides the shaft rotation shaft hole is provided in the rod setting jig table, and has a movable elasticity for pressing the rod body portion slidable forward and backward from the center of the chuck body portion. A pressing member is provided, and a stopper having a fine adjustment mechanism for fixing the position in the front-rear direction of the rod body portion pushed forward by the pressing member is disposed on the rod body portion, and the plate thickness direction of the rod tip portion is fixed. The movable chuck claw that can be slid up and down is fixed correctly in the thickness direction of the rib plate provided above .
[0005]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described in detail based on an illustrated example.
FIG. 5 is a front view before the tip processing. FIG. 6 is a front view after the tip processing. FIG. 7 is a partial front view of the processed tip. FIG. 8 is a front view of the tip press-fitting spring. FIG. 9 is a front view in which a spring is press-fitted after the tip processing.
[0006]
1 and 2 show an embodiment of the present invention.
A hole guide member 2 that uses the rod rotation shaft hole 1 as a guide and a rod set jig base 4 provided with a stopper member 3 for the rod body portion are attached to the chuck body portion of the NC lathe, and can be slid back and forth from the center of the chuck body portion. This is an embodiment incorporating a pressing member 5. A hole guide member 2 for a rod rotation shaft hole is provided on the rod setting jig table 4 so as to receive a rod 6 (movable up and down (not shown)). Further, the rod setting jig base 4 has a stopper member 3 which can be variably set and has a fixing member (fine adjustment mechanism) and a rod body portion. The chuck fixed in the plate thickness direction can be finely adjusted up and down below the plate 6 and has a fixed chuck claw 7 having a fixing member, and a movable chuck claw 8 that slides up and down to fix the plate to chuck. It has become.
A pressing member 5 that slides back and forth and presses the scissors forward is provided at the center of the chuck body.
[0007]
When the punch 6 to be machined is set in the hole guide member 2 and the machining is started, the hammer 6 is fixed to the chuck body by the movable chuck claw 8 and the pressing member 5, and the chuck body starts to rotate and starts machining. The fine adjustment function of the stopper member of the heel body portion is for adjusting a processing error due to variations in the dies, etc., from which the outer shape of the heel is pulled out, and differences in the outer shape due to consumption of the dies.
[0008]
The fine adjustment function for the upper and lower sides of the bed that receives the scissors 6 and the fine adjustment function for the upper and lower parts of the fixed chuck claw 7 are for adjusting a processing error due to variations in sheet thickness due to differences in material lots.
The pressing member 5 has an elastic characteristic (this time, an elastic characteristic is given by a spring between the head portion and the driving portion of the pressing member) (not shown) to prevent the buffering of tightening. . This elastic characteristic is performed by a spring this time, but any air pressure, hydraulic pressure, rubber, etc. may be used.
The hook is held and fixed at the time of machining by the upper and lower chucks, and the pressing member may be retracted after being fixed by the chuck.
[0009]
【The invention's effect】
According to the present invention, in a cutting machine for a press-fitting portion of a coil spring for punching a pachinko ball, a hook setting jig base provided with a stopper member for a hook body is provided on the chuck body, and the hook setting jig is provided. The base is provided with a hole guide member that guides the shaft rotation shaft hole, and a movable elastic pressing member that presses the rod body part slidable forward and backward from the center of the chuck body part. A stopper having a fine adjustment mechanism for fixing the position of the rod body portion pushed forward by the pressing member in the front-rear direction is disposed, and the fixed chuck claw fixed to the plate thickness direction at the tip of the rod is moved downward and up and down. Since the movable chuck claw that can be moved is fixed correctly in the thickness direction of the saddle plate, the operator simply sets the scissors on the scissors setting jig, and then moves the hand away from the scissors to perform the chucking. King It has become possible to safe working order to perform.
Moreover, since the fixing method of the hook is always stable, it is now possible to supply more stable hooks with pachinko balls flying.
[Brief description of the drawings]
FIG. 1 is a front view of an embodiment of the present invention.
FIG. 2 is a plan view of FIG.
FIG. 3 is a conventional front view.
4 is a plan view of FIG. 3. FIG.
FIG. 5 is a front view of the tip before processing.
FIG. 6 is a front view of the tip after processing.
FIG. 7 is a front view of a processed tip portion.
FIG. 8 is a front view of a spring.
FIG. 9 is a front view in which a spring is press-fitted into the bag after processing.
[Explanation of symbols]
1 槌 Rotating shaft hole 2 Hole guide member 3 Stopper member 4 槌 Set jig base 5 Press member 6 固定 7 Fixed chuck claw 8 Movable chuck claw

Claims (1)

In the cutting machine for the press-fitting part of the coil spring at the tip of the pachinko ball launcher, a hook setting jig base provided with a stopper member of the hook body part is provided in the chuck body part, A hole guide member for guiding the rotation shaft hole is provided, and a pressing member having a movable elasticity for pressing the rod body portion slidable forward and backward from the center of the chuck body portion is provided, and the rod body portion is provided with the pressing member. A movable chuck that has a stopper with a fine adjustment mechanism to fix the position in the front-rear direction of the body part pushed forward, and that can move the fixed chuck claw fixed to the thickness direction of the front end of the saddle down and up and down. A chucking device for a pachinko ball launching scissors processing machine that is configured to correctly fix the claws in the thickness direction of the scissors provided above .

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