JPH0227098B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a press-fitting machine for press-fitting a knob or the like of a product such as a radio into a shaft or the like.

BACKGROUND ART A conventional press-fitting machine of this type has a pneumatic cylinder 1 connected to its piston rod 2, as shown in FIG.
Attach it to the top of the main body 3 so that it faces vertically downward,
A presser rod attachment member 4 is fixed to the piston rod 2, and a plurality of presser rods 5 are attached to the presser rod attachment member 4.
a, 5b attached, and the knobs 6a, 6b temporarily fixed, the product 7 is placed on the pedestal 8, and the pneumatic cylinder 1
By operating the piston rod 2 downward, the presser rods 5a and 5b are used to turn the knobs 6a and 6.
b was press-fitted into the shaft of the product 7 (not shown).

Although this kind of press-fitting machine has the advantage of being able to press-fit multiple knobs in one process, on the other hand, too much force is applied to the product because multiple knobs are press-fitted all at once, and the knobs may become loose. There was a problem in that there was a risk of damage to the board, etc. inside the front panel of the product to which it was attached. Additionally, the spacing between the presser bars 5a and 5b must be equal to the spacing between the knobs 6a and 6b of the target product, and when the product is changed, the mounting positions of the presser bars 5a and 5b must be changed. Moreover, even if the height of the product changes, the lengths of the presser bars 5a, 5b, etc. have to be changed in the same way, resulting in a problem of lack of versatility.

Problems to be Solved by the Invention The present invention solves these conventional problems, and its purpose is to provide a press-fitting machine that is highly versatile and does not cause product destruction during press-fitting operations.

Means for Solving the Problems In order to solve the above problems, the pressure machine of the present invention includes a base, a main shaft erected on the base, and a plane substantially perpendicular to the main shaft. a first arm rotatably mounted and whose mounting position is adjustable in the axial direction of the main shaft; and a first arm rotatably mounted to the end of the first arm in a plane substantially perpendicular to the main shaft. a second arm; an operating member attached to an end of the second arm; a press-fitting pneumatic cylinder attached to the end of the second arm so that its piston rod faces substantially vertically downward; a push rod attached to the piston rod of a pneumatic cylinder, a locking pneumatic cylinder that locks the rotation of the first arm and the second arm, and a switch provided near the operating member;
It is comprised of a solenoid valve that supplies compressed air from an air source to the press-fitting pneumatic cylinder and the locking pneumatic cylinder when the switch is turned on.

Function Since the attachment position of the first arm to the main shaft is adjustable, the heightwise position of the push rod can be set arbitrarily.
Furthermore, the push rod can be moved to any desired location by gripping the operating member and moving the first and second arms. If the switch is pressed when the push rod is positioned above the knob or the like to be press-fitted, the press-fitting air cylinder is activated and the push rod moves vertically downward, allowing press-fitting work to be performed. Since press-fitting is performed using one push rod, it is not possible to press-fit multiple knobs at the same time, but on the other hand, the force applied to the product can be reduced, and damage to the product due to the press-fitting operation can be prevented. Also, since the height of the push rod can be changed freely, it is versatile and can be applied to a variety of products.

Embodiment FIG. 1 is a side view of an embodiment of the present invention, and FIG. 2 is a top view thereof.

In the figure, 10 is a base, on which a main shaft 11 is erected, and a first arm 12 is attached to this. The first arm 12 is formed of a thick metal plate or the like into a substantially U-shape, and has a bearing metal 1 attached to one end thereof.
3 and 14, a through hole for inserting the piston rod 20a of the lock pneumatic cylinder 20, and a through hole for inserting the shaft 15 at the other end. 13 and 14 are fixed by welding or the like, and the shaft 15 is fixed with a nut 16. The bearing metals 13 and 14 are attached to the main shaft 11.
is inserted, and the vertical position of the first arm 12 is defined by the vertical adjustment stoppers 17 and 29. The first arm 12 is rotatable about the main shaft 11 in a plane substantially perpendicular to the axis of the main shaft 11 as shown by the arrow, and also has screws 17 of the vertical adjustment stoppers 17 and 29.
It can be moved up and down by loosening a and 29a and changing its position. In addition, the first arm 12
A locking pneumatic cylinder 20 is fixed near the main shaft 11, and its piston rod 20a passes through a through hole in the first arm 12 and is connected to a vertical adjustment stopper 17.
Opposite the enlarged rim of. The locking pneumatic cylinder 20 operates to lock the piston rod 20.
By pressing a against the vertical adjustment stopper 17, the rotational movement of the first arm 12 and the main shaft 11 is locked.

The second arm 18 is also formed of a thick metal plate or the like into a substantially U-shape, and has a through hole at one end for inserting the shaft 15 and a piston rod 1 of the locking pneumatic cylinder 19.
The first arm 1 is provided with a through hole for inserting the piston rod 9a, and a through hole for inserting the piston rod 21a of the press-fitting pneumatic cylinder 21 at the other end.
2 means the main shaft 11 as shown by the arrow through the shaft 16.
It is configured to be able to rotate freely in a plane that is almost perpendicular to the . In addition,
In order to widen the range of this rotational movement, a notch 12a is provided on the side surface of the end of the first arm 12. Further, a locking pneumatic cylinder 19 is provided at one end of the second arm 18 with its piston rod 19a facing the upper surface of the end of the first arm 12, and the locking pneumatic cylinder 19 operates to lock the piston rod. 19a and 20a are pressed against the first arm 12, so that the first arm 12
The rotational movement of the second arm 18 and the second arm 18 is locked.

The press-fitting pneumatic cylinder 21 is attached to the end of the second arm 18 so that its piston rod 21a faces substantially vertically downward.
A push rod 22 is attached to the tip of a by screwing or the like. Further, a grip bar 23 which is an operating member is fixed to the upper surface of the end of the second arm 18, and a switch 24 is provided on the grip bar 23. By reducing the gap between the piston rod 19a of the locking pneumatic cylinder 19 and the first arm 12 and the gap between the piston rod 20a of the locking pneumatic cylinder 20 and the vertical adjustment stopper 17, etc., the main shaft 1 is immediately turned on when the switch 24 is turned on.
1 and the first arm 12 and the first arm 12 and the second
arm 18 is locked, and then
It is desirable that the push rod 22 contacts the knob or the like to be press-fitted.

The air source 25 for the locking pneumatic cylinders 19, 20 and the press-fitting pneumatic cylinder 21 is installed externally, and the compressed air from there is supplied via a pipe 26 to a solenoid valve 27 attached to the second arm 13.
From here, pipe 2 is connected to each cylinder 19, 20, 21.
8. The pressure of the air source 25 is determined by taking into account the pressure necessary for the press-fitting operation, and for example, a pressure of 5 kg/cm ² is used.

FIG. 3 is a block diagram of the electrical system of this embodiment, in which the voltage of the power source 30 is applied to the solenoid valve 27 via the switch 24.
When the switch 24 is turned on, the solenoid valve 27 is operated to connect the pipe 26 and the pipe 28, and supply compressed air to each cylinder.

When performing press-fitting work using the press-fitting machine of this embodiment, first, the vertical height of the first arm 12 is adjusted appropriately according to the height of the product to be press-fitted using the vertical adjustment stoppers 17 and 29. Adjust and set. The actual press-fitting work is performed by placing the product with the knob to be press-fitted temporarily on the base stand 10, and moving the grip bar 23 so that the push bar 22 is directly above the knob to be press-fitted. Arm 12, second arm 1
8, and when the push rod 22 is positioned above the knob, push the switch 24. This will cause the solenoid valve to operate and compressed air to the locking pneumatic cylinder 1.
9, 20 and the press-fitting pneumatic cylinder 21, the main shaft 11, the first arm 12 and the first
The push rod 23 is moved vertically downward while the rotational movement of the arm 12 and the second arm 18 is locked.
Press-fit the knob. During press-fitting, since the rotational movements of the main shaft 11 and the first arm 12 and between the first arm 12 and the second arm 18 are locked, wobbling of the push rod 22 is reduced, and reliable press-fitting work is possible. It goes without saying that the present invention can also be applied to other press-fitting operations such as attaching the front panel of a product and assembling the top cover of the housing.

Effects of the Invention As explained above, according to the present invention, the height of the push rod can be arbitrarily set by adjusting the attachment position of the first arm to the main shaft, and since one push rod is used, multiple Although it is not possible to press-fit the two knobs at the same time, it is versatile because it can be press-fitted regardless of the type of product. In addition, since the product is press-fitted with a single push rod, the force applied to the product can be reduced and damage to the product due to the press-fitting operation can be prevented.

[Brief explanation of drawings]

FIG. 1 is a side view of an embodiment of the present invention, FIG. 2 is a top view thereof, FIG. 3 is a configuration diagram of an electrical system of the embodiment of the present invention, and FIG. 4 is an explanatory diagram of the configuration of a conventional press-fitting machine. 10 is a base, 11 is a main shaft, 12 is a first arm, 17 is a stopper for vertical adjustment, 18 is a second arm, 21 is a pneumatic cylinder for press-fitting, 21a is its piston rod, 22 is a push rod, 23 is a grip rod,
24 is a switch, and 27 is a solenoid valve.

Claims (1)

[Claims] 1. A base, a main shaft that stands up on the base, and is rotatably attached to the main shaft in a plane substantially perpendicular to the axis, and whose mounting position is adjustable in the axial direction of the main shaft. a first arm;
a second arm rotatably attached to the end of the arm in a plane substantially perpendicular to the main shaft; an operating member attached to the end of the second arm; and a piston rod attached to the end of the second arm. a press-fitting pneumatic cylinder mounted so that the piston rod faces substantially vertically downward; a push rod attached to the piston rod of the press-fitting pneumatic cylinder; and a locking pneumatic cylinder for locking the rotation of the first arm and the second arm. a cylinder; a switch provided near the operating member;
A press-fitting machine characterized by comprising a solenoid valve that supplies compressed air from an air source to the press-fitting pneumatic cylinder and the locking pneumatic cylinder when the switch is turned on.