JPH10329092A - Part manufacturing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To intermittently and accurately convey a beltlike material only through regulation of the stroke of a slider by a stopper by providing a slider driven for linear reciprocation in the transfer direction of a beltlike material and a press means to intermittently press a beltlike member against the slider. SOLUTION: When a hoop material 1 is pressed over a slider 11 through the working of a leaf spring 39, a washer 5 sucked to a suction head 67a is outputted to above through a part output port 19. Since, when a sensor 29 is brought into an OFF-state, a solenoid valve is switched gain, the slider 11 is reciprocated in the direction of an arrow mark (a). In which case, the hoop material 1 pressed against the slider 11 through the working of the leaf spring 39 is intermittently transferred in the direction of the arrow mark (a) by a constant transfer pitch P integrally with the slider 11. Further, in this case, a roller 12 is relatively rolled in the direction of an arrow mark (b) over the leaf spring 39 with the roller pressing over the leaf spring 39.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component manufacturing machine for punching a component such as a washer from a strip material.

[0002]

2. Description of the Related Art Conventionally, as a machine for manufacturing small parts such as washers, a transfer device for intermittently transferring a band material,
A punching device having a fixed die and a movable die raised and lowered at an upper portion thereof, and a punching device for intermittently punching a component from the transferred belt-shaped material; a component outlet provided at an upper portion of the punching device; Are commercially available.

A part manufacturing machine of this kind is installed on a small product assembly line in which a small robot for assembling a small product is arranged, and is used to transfer small parts such as washers from a band-shaped material intermittently transferred by the transfer device. The small robot is intermittently inserted into the component outlet of the punching device from above while intermittently punching with the punching device, and the small robot is used to intermittently take out small components and assemble the assembly line. Is done.

[0004]

However, in this type of conventional part manufacturing machine, a belt-like material is sandwiched from above and below by a pair of transport rollers as a transport device, and the belt-like material is intermittently driven by the above-mentioned transport rollers. The material was transferred intermittently.

Therefore, the variation in the rotation angle accuracy of the transfer roller appears as it is as the intermittent variation in the amount of transfer of the belt-like material. Therefore, a device for precisely controlling the rotation angle of the transfer roller is required. For this reason, there is a problem that the transfer device becomes expensive.

[0006] In addition, as disclosed in Japanese Utility Model Application Laid-Open No. 58-47499, for example, a conventional part manufacturing machine of this type is disclosed in
In some devices, a blank and a stamped piece that are punched from a strip material by a punching device are adhered to a carrier film transported under a die of the punching device, and are taken out together.

[0007] However, the transfer device for the adhesive film is large and expensive, and the troublesome work of separating and punching out the parts and the punched wastes adhered to the carrier film from the carrier film is thereafter required. It is necessary, and there is a problem that efficiency is low.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to provide a component manufacturing machine which can eliminate the need for a precise control device for a transfer device.
Another object of the present invention is to provide a component manufacturing machine capable of efficiently discharging punching waste generated from a punching device.

[0009]

According to one aspect of the present invention, there is provided a component manufacturing machine according to the present invention.
The transfer device includes a slider that is linearly reciprocated in the transfer direction of the strip-shaped material, and pressing means that presses the strip-shaped member intermittently onto the slider. In this case, it is preferable to further include a cylinder that reciprocates the slider in the direction of transport of the band-shaped member by the reciprocating motion, and a stopper that regulates a moving position of the slider during the forward movement of the cylinder. Further, the pressing means includes a pressing plate that can sandwich the band-shaped member between the slider and the slider, and a rotatable roller that presses the pressing plate toward the slider. It is preferable that the slider is driven so as to be linearly moved backward in the transfer direction of the strip material together with the slider.

According to another aspect of the present invention, there is provided a component manufacturing machine provided with a punching chip discharging means for discharging punching chips generated when a component is punched by a punching device by ejecting compressed air. It is. In this case, it is preferable that the reciprocating drive means for driving the movable mold of the punching device in the backward direction be constituted by an air cylinder, and the exhaust of the air cylinder be used as the compressed air.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a component manufacturing machine for manufacturing a washer as a small component will be described below with reference to the drawings.

First, FIG. 2 shows a process of manufacturing a washer by using this component manufacturing machine 9, in which a hoop material 1 which is a band-like material of synthetic resin or metal is transferred from a reel 2 by a transfer device 3 in a transfer direction. (In the direction of arrow a) intermittently withdrawn at a constant transfer pitch P (for example, about 6 mm), and the hoop material 1 is intermittently and linearly supplied to the punching device 4 at a constant transfer pitch P. 4, a washer 5 as a component is intermittently punched from the hoop material 1. At this time, the punching device 4 punches the washer 5 so that the center hole 5a of the washer 5 is intermittently punched by the small-diameter punch 6 and then the outer diameter 5b of the washer 5 is punched by the large-diameter punch 7.

FIG. 1 shows the entire component manufacturing machine 9, in which a transfer device 3 and a punching device 4 are arranged in a lower part in a case 10 in a substantially horizontal state.

The transfer device 3 has a slider 11, a roller 12 as a pressing means, an air cylinder 13 as a reciprocating drive means for the slider 11, a stopper 14 for adjusting a stroke of the slider 11, and the like.

The punching device 4 includes a stationary mold 16, a movable mold 17 driven up and down at an upper portion thereof, an air cylinder 18 serving as a lift drive means for driving the movable mold 17 up and down, and a movable mold 17. And a component take-out port 19 provided at the upper part. The air cylinder 18 is disposed by utilizing the upper space of the transfer device 3 in the case 18, and the air cylinder 18 and the movable mold 17 are connected by a driving lever 20 which is a driving force transmitting means.

As shown in FIG. 2, the center hole 5 of the washer 5
5c generated by punching a
Is temporarily provided in the upper part of the movable mold 17 (see FIG. 1). The punching waste discharging means for discharging the punching waste 5c in the punching waste pool 22 to the punching waste collecting unit 23 by jetting compressed air is provided by the exhaust pipe 24 of the air cylinder 18, the exhaust inlet 25, and the punching waste outlet 26. And a punched waste discharge pipe 27 (see FIG. 1).

A sensor 29 for detecting the insertion of a suction head of a small robot, which will be described later, is provided in the component outlet 19. Based on a signal from the sensor 29, the solenoid valves 30, 31 of the air cylinders 13, 18 are operated. A control circuit 32 for controlling is provided. 33 and 34 are compressed air introduction pipes for introducing compressed air from the compressor to the air cylinders 13 and 18.

Next, the details of the component manufacturing machine 9 will be described with reference to FIGS.

First, the case 10 has a substantially L-shaped side surface in a vertical section, and a height H _{1 of the} front surface 10a.
There is formed in about 48.5 mm, height H ₂ of the rear 10b is formed to be about 132 mm, the width W of the bottom surface 10c and the upper surface 10d is formed at about 120 mm, depth L of the side surface 10e of about 1
It is formed to 53 mm (see FIG. 6). And the front 1
0a and the upper surface 10d are connected by a slope 10f and a step surface 10g, and a component outlet 19 is opened in the slope 10f. The hoop material inlet 36 and the hoop material outlet 37 are provided on the rear surface 10b and the front surface 10a of the case 10 at substantially the same height (see FIG. 3).

Next, the transfer device 3 is provided horizontally below the upper surface 10d in the case 10, and the punching device 4 is provided horizontally below the slope 10f.
An air cylinder 18 is horizontally arranged at a position directly below the upper surface 10d in the case 10 using the upper space (see FIG. 3).

Next, the slider 11 of the transfer device 3 is configured to be intermittently and linearly reciprocated by the piston 13a of the air cylinder 13 in the transfer direction and the directions of arrows a and b opposite thereto. Have been. A hoop material guide 38 is mounted on the slider 11, and a roller is mounted on a leaf spring 39 serving as another pressing means and functioning as a pressing plate fixed to an end of the hoop material guide 38 in the direction of arrow a. 12 is placed (see FIG. 3).

Next, the fixed die 16 of the punching device 4 is disposed horizontally below the hoop material 1, and the fixed die 16
The small-diameter punch 6 and the large-diameter punch 7 are vertically mounted near the ends in the directions of the arrows b and a, respectively. The vertically movable stripper 40 fitted to the small-diameter punch 6 and the large-diameter punch 7 is urged upward by a plurality of weak springs 41 in the direction of arrow c, which is the upper side (see FIG. 5). The movable mold 17 is disposed horizontally above the hoop material 1.
7 is provided with a small-diameter die 42 and a large-diameter die 43 in which the small-diameter punch 6 and the large-diameter punch 7 are relatively inserted from below. And, just above the large-diameter die 43,
Are arranged in communication with each other, and the punched waste pool 22 is arranged in communication with the upper part of the small-diameter die 42. The movable mold 17 is guided by a pair of elevating guide shafts 44 and is configured to be able to move up and down in the directions of arrows c and d, which are vertical directions, and to be raised by a pair of strong springs 45 in the direction of arrow c which is the upper side. (See FIG. 5).

Next, the drive lever 20 has a structure in which a pair of left and right parallel plates are integrally connected by a plurality of pins 46a to 46e. And this drive lever 20
Is rotatable about the fulcrum shaft 47 in the directions of arrows e and f, and is urged to rotate in the direction of arrow f by a spring 49 having both ends locked by a connecting pin 46a and a fixed spring locking pin 48. ing. Then, the tip 20 of this drive lever 20
a is always in contact with the upper part of the movable mold 17, and the piston 18 a of the air cylinder 18 can be in contact with the connecting pin 46 b on the other end side in the direction of the arrow g (FIGS. 3 and 5).
See figure).

The roller lever 50 to which the roller 12 is attached is connected to the connecting pin 46 at the lower end of the drive lever 20.
The roller lever 50 is rotatably mounted in the direction of arrow i by a spring 51 mounted between the free end 50a of the roller lever 50 and the connecting pin 46c (see FIG. 3). ).

The base chassis 5 is provided in the case 10.
3 and a pair of left and right side chassis 54 are arranged, the fixed mold 16 is mounted on the base chassis 53, and both the air cylinders 13, 18, the fulcrum shaft 47 and the spring locking pin 48 are mounted between the side chassis 54. (See FIGS. 3 and 5).

Next, the stroke adjusting stopper 14 of the slider 11 is fixed to the tip of the screw shaft 56, and the screw shaft 56 is screwed to a nut 57 fixed to the lower part of the back surface 10b of the case 10, and the outer surface of the back surface 10b is A knob 58 is fixed to the other end of the screw shaft 56 protruding in the direction. And
A leaf spring 59 fixed on the bottom surface 10c of the case 10 is selectively locked by a plurality of locking grooves 60 provided on the outer periphery of the stopper 14 by a click action.

The component manufacturing machine 9 configured as described above
The air cylinder 18 of the punching device 4 is separated from the operating axis P ₁ of the movable mold 17 and is disposed using the upper space of the transfer device 3. 17 is configured to be driven up and down intermittently. Therefore, the bottom surface 10 of the component manufacturing machine 9
The height H ₃ from c to the component outlet 19 is reduced by the height of the air cylinder 18 so that the fixed mold 16 and the movable mold 17 are removed.
And it can be lowered to about the height + alpha mold block of, was successfully reduced to below about 60mm and the height H ₃ in this embodiment.

Next, referring to FIG.
How to use is explained.

In an assembly line 63 for a small product 62 such as a tape recorder, a carrier 65 is transported by transport means 64 such as a belt conveyor. Then, the chassis 62a of the small product 62 is placed on the carrier 65,
The gear 6 is mounted on the support shaft 62b on the chassis 62a.
Assemble 2c and the like.

A small robot 67 having a suction head 67a is mounted on a robot table 66 installed on one side of the assembly line 63, and a manufacturing machine table 68 installed on the other side of the assembly line 63. The component manufacturing machine 9 and the reel 2 of the hoop material 1 are mounted on the top.

At this time, as described above, since the height H ₃ of the component outlet 19 of the component manufacturing machine 9 is reduced to about 60 mm or less, the robot table 66 and the manufacturing machine table 68 are placed at the same height. while set the lifting stroke H ₄ of the suction head 67a it is possible to accept the following commercially available small robots 67 100 mm.

Then, the component manufacturing machine 9 intermittently pulls out the hoop material 1 from the reel 2 in the direction of arrow a, and
Is manufactured intermittently. Then, the suction head 67a of the small robot 67 intermittently takes out the washer 5 from the component outlet 19, fits the washer 5 on the support shaft 62b or the like on the chassis 62a or the like, and moves the gear 62 to the support shaft 62b or the like.
The small product 62 is assembled in such a manner as to prevent the removal of the small product 62.

Next, the details of the washer manufacturing process of the component manufacturing machine 9 and the washer removal process by the suction head 67a of the small robot 67 will be described with reference to FIGS.

First, the suction head 67a is lowered in the direction of arrow k from the position indicated by the solid line in FIG. When the suction head 67a is inserted into the component outlet 19 as shown by the dashed line and the sensor 19 is turned on, the control circuit 32
The solenoid valve 31 is switched by the
From 4, compressed air is introduced into one air introduction port 18 b of the air cylinder 18 of the punching device 4.

Then, as shown in FIG.
a is pushed out in the direction of arrow g and pushes the connecting pin 46b, so that the drive lever 20 is rotated about the fulcrum shaft 47 in the direction of arrow f.
The movable die 16 of the punching device 4 is lowered in the direction of arrow d against the spring 45 by a.

Then, the stripper 40 is lowered together with the hoop material 1 against the spring 41, and the small-diameter punch 6 and the large-diameter punch 7 of the fixed die 16 and the small-diameter die 42 and the large-diameter die 43 of the movable die 17. As a result, the center hole 5a and the washer 5 shown in FIG.

At this time, as shown in FIG.
At about the same time when the washer 5 is completely punched by
FIG. 2 shows the washer 5 on the large-diameter punch 7 with the suction head 67a.
Is inserted from the direction of arrow k into the center hole 5a shown in FIG.

At this time, the exhaust of the compressed air discharged from the other air inlet 18c of the air cylinder 18 of the punching device 4 is introduced at high speed from the exhaust inlet 25 into the punched waste reservoir 22 through the exhaust pipe 24. A high-speed vortex of exhaust gas is generated in the punched waste pool 22.

Therefore, as shown in FIG. 4, the punched waste 5c shown in FIG. 2 punched from the hoop material 1 by the small-diameter punch 6 is discharged from the punched waste outlet 26 through the high-speed vortex of the exhaust gas. And is collected at high speed in the punched waste collecting section 23.

On the other hand, as shown in FIG.
Is rotated in the direction of arrow f, the connecting pin 46c, which is the fulcrum shaft of the roller lever 50, is moved in the direction of arrow f ', and the roller lever 50 is rotated by the spring 51 in the direction of arrow i around the connecting pin 46c. However, since the free end portion 50a of the roller lever 50 is shortly brought into contact with the fulcrum shaft 47, the roller lever 50 is rotated integrally with the drive lever 20 in the arrow direction i, and the roller 12 is moved from the leaf spring 39. Separated upward.

On the other hand, after the hoop material 1 is sandwiched and fixed from above and below by the stripper 40 of the fixed mold 16 and the movable mold 17, the solenoid valve 30 is switched by the control circuit 32. Then, compressed air is introduced into one air introduction port 13b of the air cylinder 13 of the transfer device 3 through the electromagnetic valve 30.

Then, as shown by the dashed line in FIG. 4, the piston 13a is pushed out in the direction of the arrow b, so that the slider 11 moves forward in the direction of the arrow b, and the slider 11 comes into contact with the stopper 14. .

Then, as shown in FIG. 3, since the solenoid valve 31 is switched again by the control circuit 32,
Compressed air is introduced from the compressed air introduction pipe 34 into the other air introduction port 18c of the air cylinder 18 of the punching device 4 through the electromagnetic valve 31, and the piston 18a is drawn in the direction of arrow a.

Then, since the movable mold 17 is raised in the direction of arrow c by the spring 45, the hoop material 1 is moved from the small-diameter punch 6 and the large-diameter punch 7 by arrow c to the stripper 40 raised in the direction of arrow c by the spring 41. The hoop material 1 is removed from the stripper 40 and the movable mold 16 in the direction.

At this time, the movable lever 17 which is raised in the direction of the arrow c causes the drive lever 20 to move in the direction of the arrow e against the spring 49.
, The roller 12 is pressed by the spring 51 onto the leaf spring 39 in the direction of the arrow i.
The leaf spring 39 presses the hoop material 1 onto the slider 11.

Thereafter, the suction head 67a moves from the lowered position shown in FIG. 4 to the raised position shown by a solid line in FIG.
Then, the washer 5 sucked by the suction head 67a is removed upward (in the direction of arrow 1) from the component outlet 19. When the sensor 29 is turned off, the solenoid valve 30 is switched again.
From the air cylinder 13 of the transfer device 3 through the solenoid valve 30
Compressed air is introduced into the other air inlet 13c, and the slider 13 is moved backward by the piston 13a in the direction of the arrow a from the forward movement position indicated by the alternate long and short dash line in FIG.

Then, the slider 11 is moved by the leaf spring 39.
The hoop material 1 pressed upward is intermittently transferred in the direction of the arrow a at a fixed transfer pitch P integrally with the slider 11. At this time, the roller 12 relatively rolls on the leaf spring 39 in the direction of arrow b while pressing on the leaf spring 39.

Therefore, the hoop material 1 is intermittently supplied by the transfer device 3 from the direction of the arrow a at a constant transfer pitch P between the fixed die 16 and the movable die 17 of the punching device 4.

As described above, a series of operations is completed.

As shown in FIG. 3, the knob 58 is rotated and adjusted, and the stopper 14 is moved and adjusted by the screw shaft 56 and the nut 57 in the directions of arrows m and n. By adjusting the stroke, the transfer pitch P of the hoop material 1 in the direction of arrow a can be easily adjusted. At this time, the knob 58 is connected via the screw shaft 56.
The leaf spring 59 engages with the locking groove 60 of the stopper 14 which is integrally rotated and adjusted by a click action, and the arrow m,
The stopper 14 that has been moved and adjusted in the n direction is locked.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various effective changes can be made based on the technical idea of the present invention.

For example, in the above embodiment, the component manufacturing machine 9 for manufacturing the washer 5 is shown. However, the present invention can be applied to a component manufacturing machine for manufacturing various components by changing the die structure of the punching device 4. .

[0053]

Since the present invention is configured as described above, the following effects can be obtained.

According to the parts manufacturing machine according to the first, second and third aspects of the present invention, pressing is performed only by regulating the stroke of the slider linearly reciprocated in the direction in which the belt-shaped material is transported by the stopper or the like. Since the belt-like material intermittently pressed onto the slider can be intermittently and accurately transferred by the means, a precise control device of the transfer device can be omitted, and therefore, the structure of the transfer device is simple and simple. Inexpensive,
Further, the transfer pitch of the band-shaped material can be easily adjusted only by adjusting the stroke of the slider with a stopper or the like.

According to the second aspect of the present invention, the slider is reciprocated in the transport direction of the band-shaped member by the reciprocating motion of the cylinder capable of accurately regulating the reciprocating position by itself. The movement of the slider during the forward movement of the cylinder is regulated by the stopper, so that the structure of the moving device is simpler and less expensive, and the reciprocating position of the slider, and hence the band-shaped material, The transfer pitch can be accurately defined.

According to the third aspect of the present invention, the operation of sandwiching the belt-like member between the slider and the holding plate and intermittently transferring the belt-like member together with the slider is performed smoothly and reliably by a simple structure. be able to.

Further, according to the parts manufacturing machine according to the fourth and fifth aspects of the present invention, the punching waste generated from the punching device can be efficiently discharged by the ejection of the compressed air. Can do well.

According to a fifth aspect of the present invention, there is provided a component manufacturing machine, wherein punched chips are discharged by using exhaust air from an air cylinder which constitutes a reciprocating drive means for reciprocally driving a movable die of a punching device. Therefore, the device can be simplified.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing an entire component manufacturing machine according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view showing a step of manufacturing a washer using the component manufacturing machine shown in FIG.

FIG. 3 is a partially longitudinal side view for explaining a washer manufacturing operation and a hoop material transfer operation in the component manufacturing machine shown in FIG.

FIG. 4 is a side view partially illustrating the operation of manufacturing the washer and the operation of transferring the hoop material in the component manufacturing machine shown in FIG.

FIG. 5 is a view taken along line AA of FIG. 3;

FIG. 6 is a perspective view of a case of the component manufacturing machine shown in FIG.

FIG. 7 is a schematic side view showing a use state of the component manufacturing machine shown in FIG.

[Explanation of symbols]

 Reference Signs List 1 hoop material (strip material) 3 transfer device 4 punching device 5 washer (component) 5c punching waste 9 component manufacturing machine 11 slider 12 roller (pressing means) 13 air cylinder 14 stopper 16 fixed die 17 movable die 18 air cylinder ( Forward drive means) 24 Exhaust pipe (punched chip discharge means) 25 Exhaust inlet (punched chip discharge means) 26 Punched chip discharge port (punched chip discharge means) 27 Punched chip discharge pipe (punched chip discharge means) 39 Leaf spring ( Pressing means / pressing plate)

Claims (5)

[Claims] 1. A transfer device for intermittently transferring a band material, a fixed mold and a movable mold reciprocally driven with respect to the fixed mold, wherein parts are intermittently transferred from the transferred band material. A part manufacturing machine having a punching device for performing a punching process, wherein the transfer device intermittently presses the slider, which is linearly reciprocated in the transfer direction of the strip material, and the strip member onto the slider. A component manufacturing machine comprising: 2. The apparatus according to claim 1, further comprising: a cylinder for reciprocating the slider in a direction in which the band-shaped member is moved by the reciprocating movement; and a stopper for restricting a movement position of the slider during forward movement of the cylinder. The component manufacturing machine according to claim 1 or 2, wherein: 3. The device according to claim 1, wherein the pressing means includes a pressing plate capable of holding the band-shaped member between the slider and the slider, and a rotatable roller pressing the pressing plate toward the slider. 3. The component manufacturing machine according to claim 1, wherein the presser plate is configured to be linearly driven backward in the direction in which the strip material is transferred together with the slider. 4. A transfer device for intermittently transferring a band-shaped material, a fixed mold and a movable mold driven backward with respect to the fixed mold, and a component is transferred from the transferred band-shaped material. A punching device for intermittently punching, wherein the punching device is provided with a punching chip discharging means for discharging punching chips generated when the component is punched by the punching device by ejecting compressed air. Feature parts manufacturing machine. 5. A reciprocating drive means for driving the movable die backward in the punching device by an air cylinder, and the exhaust of the air cylinder is used as the compressed air. Item 4. A parts manufacturing machine according to Item 4.