JPH04111725A - Method for mounting ring-shaped part and device thereof - Google Patents

Abstract

PURPOSE:To mount a ring-shaped part to a mounted shaft simultaneously punch- forming the ring-shaped part by successively punching a center hole and a contour from a plate material to form the ring-shaped part, and punching the contour on an axial line of the mounted shaft. CONSTITUTION:The first punching means 2 for punching a center hole 4a of a washer 4 in a metal band 1, the second punching means 3 for punching a contour 4a of the washer 4, and a conveyer 7, which intermittently conveys a product 6 having a mounted shaft 5 in a direction of arrow mark B, is provided below a position for punching the contour of the washer 4 of the second punching means 3. A guide bar 26 is longitudinally provided through a hollow contour punching shaft 21 of the second punching means 3, and the guide bar 26 is protruded downward by a predetermined amount from the contour punching shaft 21 in the lowermost position of downward movement and butt opposed to the mounted shaft 5. When the washer 4 is punched by moving the contour punching shaft 21 downward, the washer 4 is surely guided so as to be transferred without its falling off or the like to a side of the mounted shaft 5 by the guide bar 26 butt opposed to the mounted shaft 5.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a ring-shaped component mounting method and device for automatically mounting a ring-shaped component onto a shaft to be mounted. It is used when a washer is attached to a tightening part.

2. Description of the Related Art Conventionally, ring-shaped parts such as the washers are punched out from a plate member using male and female tools, and are then randomly gathered and stored for handling. In order to use this, they are fed in an aligned state by an alignment supply means such as a vibrating parts feeder a as shown in Fig. 4, and then fed in a fixed amount onto the axis C of a preliminary stacker b as shown in Fig. 5. Fit them one by one. Then, each time it is necessary, the parts are picked up one by one using a toe and carried as shown in FIG. 5, and then fitted into a predetermined shaft.

Problems to be Solved by the Invention However, the above method requires a lot of equipment, labor, time, and stock space from manufacturing to mounting the ring-shaped parts, which causes high costs. . In addition, in order to pick up a component and align it to a predetermined axis, it is necessary to accurately align and hold the component and the suction head that picks it up, which also causes increased costs and mounting errors.

Therefore, the present invention makes it possible to stamp and form a ring-shaped component and at the same time reliably attach it to the shaft to be attached.
It is an object of the present invention to provide a method for mounting a ring-shaped component and an apparatus for the same, which can solve the above-mentioned conventional problems.

Means for Solving the Problems In order to achieve the above problems, the invention of the present method is as follows:
The ring-shaped part is formed by sequentially punching out the center hole and the outline from the plate material L. The outline is punched out on the axis of the shaft to which the ring-shaped part is mounted, and the outline is guided by the punched hole of the female tool for punching the outline. This method is characterized in that a ring-shaped part whose outline is punched out is directly fitted onto the shaft to be mounted by extrusion from a punched hole using a male tool.

The invention of the present device is a first method for punching a center hole from a plate material.
and a second punching means for punching out a contour set around the outer circumference of the part where the center hole of the plate material has been punched out, are sequentially installed in the conveying direction of the plate material, and the second punching means is arranged in the direction of conveyance of the plate material. A guide bar facing the shaft to be mounted, which is located on a line, is provided so as to extend vertically through the male tool so that it can move forward and backward, and this guide bar is biased by a spring so as to always protrude toward the tip side between the male tool and the male tool. It is characterized by the fact that

According to the above structure of the invention of the method of the present application, the ring-shaped part is formed by punching out the center hole and the outline from the plate material in this order on the axis of the shaft to which the ring-shaped part is mounted, and when punching out the outline, The formed ring-shaped part is fitted to the shaft to be mounted whose axes coincide with each other by guidance through the punched hole of the female tool and extrusion from the punched hole by the male tool, so that the ring-shaped part is formed at the same time as the formed ring-shaped part. It can be attached to the shaft to be attached by using the forming means and its forming operation.

According to the above structure of the invention of the apparatus of the present application, the first punching means and the second punching means are sequentially installed in the conveying direction of the plate material, so that the center hole is punched by the first punching means of the plate material. A ring-shaped part can be formed by repeatedly punching out the contour by the second punching means, and when the second punching means punches out the contour, the male tool punches out the contour from the punching hole of the female tool. Since the latter ring-shaped part is pushed out, the ring-shaped part is removed from the punched hole of the female tool toward the shaft to be mounted.
At least since the guide bar protrudes toward the tip side with respect to the male tool, it is possible to guide the ring-shaped component to be detached, and the guide bar quickly comes into abutment with the shaft to be mounted, so that the ring-shaped component is It can be moved to the mounting axis. Furthermore, even after the guide bar butts against the shaft to be mounted, the male tool can move downward against the biasing means, allowing the ring-shaped part guided by the guide bar to move toward the shaft to be mounted and reach a predetermined position. The attachment can be forcefully done quickly and reliably.

Embodiment A ring-shaped component mounting apparatus as an embodiment of the present invention shown in FIGS. 1 to 3 will be described below.

In this embodiment, as shown in FIG. 1, a metal strip 1 wound into a roll is rolled out in the direction of arrow A, and a first punching means 2 and a second punching means 3 are sequentially worked on the metal strip 1. ,
The washer 4 is formed as a ring-shaped component. The metal strip 1 is wound up at its destination. The first punching means 2 punches out the center hole 4a of the washer 4 in the metal strip 1 as shown in FIG. 2, and the second punching means 3 punches out the outline 4a of the washer 4 as shown in FIG. It is something.

Below the position where the outline of the washer 4 is punched out by the second punching means 3, a product 6 having a mounting shaft 5 on which the washer 4 is mounted in a direction perpendicular to the conveyance direction of the metal strip 1 is placed in the direction of arrow B. A conveyor 7 is provided for intermittently conveying.

The first punching means 2 and the second punching means 3 are
As shown in FIG. 3, the lower die 11, the punching die 12,
They have a guide block 13 in common. The second punching means 3 has a center hole punching pin 14 . This center hole punching pin 14 is vertically slidably guided by a guide hole 15 of the punching die 12 and a guide 15 of the guide block 13, and is inserted between the punching hole 16 of the lower die 11 and the center hole from the metal strip 1. Punch out 4a. For this operation, the center hole punching pin 14 is connected to a drive cylinder 18 by a connecting block 17 and is moved up and down. Note that the center hole 4a is shown in a hexagonal shape, and the center hole punching pin 14 and punching hole 16
, the guide hole 15, etc. are formed in the same shape.

The second punching means 3 has a hollow profile punching shaft 21 . This contour punching shaft 21 is vertically slidably guided by a guide hole 22 of the punching die 12 and a guide hole 23 of the guide block 13, and is inserted between the punching hole 24 of the lower die 11 and the washer 4 from the metal strip 1. outline 4a of
is punched out, and the washer 4 is pushed out from the punched hole 24 downward. For this punching work, the contour punching shaft 2
1 is connected to a drive cylinder 25 and is moved up and down.

A guide bar 26 is vertically passed through the contour punched shaft 21 by utilizing its hollow structure. This guide bar 26 has the same shape and the same size cross section as the center hole punched pin 14. In other words, it forms a hexagon. Further, the guide bar 26 is prevented from being pulled out relative to the contour punching shaft 21 by a head 26a at its upper end, and the head 26a is at the lowest position where it is stopped by the downward movement position regulating portion 21a of the contour punching shaft 21. A spring 27 is applied between the contour punching shaft 21 and the shaft 21 so as to have downward movement into position.

The guide bar 26 projects downward from the contour punching shaft 21 by a predetermined amount in the lowermost position relative to the contour punching shaft 21 . This amount of protrusion is preferably set so that the guide bar 26 butts against the mounted shaft 5 facing the guide bar 26 at or before the time when the contour punching shaft 21 pushes out the washer 4 from the punched hole 24. be.

When the contour punching shaft 21 is moved upward, the guide bar 26 moves simultaneously with the upward movement of the contour punching shaft 21.
, this upward movement position is such that the lower end of the guide bar 26 is connected to the punching die 12.
It is set to the position where it retreats inwards.

As described above, when the contour punching shaft 21 moves downward to punch out the washer 4, the guide bar 26 reaches the conveying part of the metal strip l at its tip and enters the center hole a punched at the tip of the metal strip l. enter in. Next, the contour punching shaft 21
stands on the metal strip 1 and punches out the contour portion 4b. The washer 4 thus punched out is pushed out downwardly from the punched hole 24 by further downward movement of the contour punching shaft 21.

At or before this time of extrusion, the guide bar 26 abuts against the shaft 5 to be mounted, so that the washer 4 can be guided to reliably move to the shaft 5 to be mounted without falling off.

The guide bar 26 has the same size and shape as the center hole 4a, and is fitted into the center hole 4a.Although the center hole 4a is hexagonal, the direction of the guide bar 26 is kept constant from beginning to end, so that the guide bar 26 has the same size and shape as the center hole 4a. Even if the mounting shafts 5 have the same size and shape, they can be guided so as to fit smoothly therein.

As shown by the imaginary line in FIG. 3, the contour punching shaft 21 is moved further down than the guide bar 26 which abuts against the shaft 5 to be mounted, so that the shaft 4 guided by the guide bar 26 can be moved down to the shaft 5 to be mounted. It is possible to quickly and reliably move the device to the side and attach it to a predetermined position.

Effects of the Invention According to the invention of the method of the present application, a ring-shaped component is formed by punching out a center hole and a contour from a plate material in this order on the axis of a shaft to which the ring-shaped component is mounted, and when punching out the contour, a female The formed ring-shaped part is fitted onto the shaft to be mounted whose axes coincide with each other by guidance through the punched hole of a tool and extrusion from the punched hole by a male tool, and the ring-shaped part is formed at the same time as the forming means. Since it can be attached to the shaft to be attached using the formation motion of the holder, no special means, special work, special handling or space is required for this attachment, so everything is much simpler than before. , and can significantly reduce product costs.

According to the device invention of the present application, the first punching means and the second punching means
The punching means are installed sequentially in the conveying direction of the plate material, and punch out the outline of the center hole of the plate material by the first punching means in an overlapping manner by the second punching means, thereby punching out a ring-shaped part. When the second punching means punches out the contour, the male tool pushes out the ring-shaped part after the contour punching from the punched hole of the female tool, so that the ring-shaped part is inserted through the punched hole of the female tool. Although the ring-shaped part is detached toward the shaft side, since the guide bar protrudes toward the tip side at least relative to the male tool, the ring-shaped component to be detached can be guided.
The guide bar quickly comes into contact with the shaft to be mounted, and the ring-shaped part can be transferred to the shaft to be mounted, which reduces the incidence of defective products due to mounting errors, further reduces costs, and Further, troubles caused by incorrect installation can be avoided.

Furthermore, after the guide bar butts against the shaft to be mounted, the male tool can be moved downward against the biasing means, and the ring-shaped part guided by the guide bar is moved to the shaft to be mounted and mounted to a predetermined position. This can be done quickly and reliably, which further improves product productivity and reduces product costs.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a ring-shaped component mounting device as an embodiment of the present invention, Fig. 2 is a plan view showing the state of punching a plate, Fig. 3 is an enlarged sectional view of the main part, and Fig. 4. FIG. 5 is a plan view of a conventional aligning and supplying device, and a side view, partially cut away, showing a tank portion and a carrying device used for mounting ring-shaped parts. Conhair lower die punching die guide flock center hole punching bin punching hole drive cylinder contour punching shaft guide bar spring metal band, first punching means, second punching means, washer center hole contour attached shaft product

Claims (2)

[Claims] (1) A ring-shaped part is formed by sequentially punching out a center hole and a contour from a plate material, the punching of the contour is performed on the axis of the shaft to which the ring-shaped part is attached, and the punched hole of a female tool is used to perform the contour punching. 1. A method for mounting a ring-shaped part, characterized by directly fitting and mounting a ring-shaped part whose outline has been punched out on a shaft to be mounted, by guiding the ring-shaped part with a male tool and extruding it from a punched hole using a male tool. (2) a first punching means for punching a center hole from a plate material and a second punching means for punching out a contour set around the outer circumference of a portion of the plate material in which the center hole is punched out are installed in sequence in the conveying direction of the plate material; The second punching means is provided with a guide bar that faces the attached shaft located on the axis of the male and female tools and extends vertically through the male tool so as to be able to move forward and backward, and this guide bar is inserted between the male tool and the distal end thereof. A mounting device for a ring-shaped part, characterized in that it is biased by a spring so that it always protrudes.