JP2876390B2 - Transfer equipment for high-speed press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Industrial application] Used for high-speed press transfer equipment.

[0002]

2. Description of the Related Art In a transfer device of a conventional high-speed press, the feed bar is driven in the left-right direction by a disk cam or by a planetary gear mechanism. Also,
The clamp / unclamp of the feed bar is driven by a disk cam or a gear mechanism using a plate cam and a rack and pinion.

[0003]

A disk cam or a plate cam is used as a drive source to drive the feed bar of a transfer device of a high-speed press in the left-right direction as an advanced return operation, or to perform a clamp / unclamp operation. In the case where each of the front and rear driving is driven by one disk cam, a) a large force acts on the cam and the cam follower for driving the feed bar. B) In order to follow the valley of the cam, a large force is applied by a cylinder or a spring for following the cam follower. C) As a result, the sum of the above forces a) and b) acts between the cam and the cam follower when ascending to the mountain of the cam, requiring a large cam device.

[0004] Alternatively, in the case of driving with two disk cams, the force acting on the cams has a value corresponding to the above item a), but the use of two cams is complicated. Also, in order to obtain an intermittent reciprocating drive mechanism, the mechanism is complicated when driven using a planetary gear mechanism.

Further, from the driving source to the feed bar,
In particular, since the driving mechanism of the clamp / unclamp uses a gear mechanism composed of a rack and pinion, it is difficult to operate the press at high speed.

[0006]

A drive unit and a first clamp device are provided on one of the left and right sides of the high-speed press, and a second clamp device is provided on the other side. A first slider is driven by a first drum cam provided on a drive unit that rotates in synchronization with a slide of a high-speed press. The first slider and the feed bar are connected by a link, and the feed bar is intermittently reciprocated left and right, that is, , Advanced return operation.

A second slider fixed to the first drum cam is provided with a second slider which is intermittently driven reciprocally to the left and right.
The first clamp device and the second clamp device are oscillatingly driven via the lever, and the oscillating rotation drives the feed bar guide mechanism to perform the clamp / unclamp operation of the feed bar, and the rack / The mechanism does not use a pinion or the like. By adopting the above mechanism, a compact and simple device can be obtained, and a transfer device that can be used for a high-speed press can be obtained.

[0008]

With the first drum cam and the second drum cam rotating in synchronization with the slide of the high-speed press as driving sources, the feed bar of the transfer device is clamped / unclamped and advanced / returned. Attach the finger provided to the feed bar according to the part, clamp the part with the feed bar, hold and advance the part, unclamping and place the part in the lower mold, press the part,
Return and one cycle is completed. This cycle is repeated, and press working is performed while parts are sequentially conveyed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. 1, 2, 3, 4, 5, 6, and 7. FIG. A drive unit 4 and a first clamp device 5 are provided on one of the left and right sides of the high-speed press 1, and a second clamp device 6 is provided on the opposite side. The cam shaft 12 rotatably supported by the drive case 11 of the drive unit 4 is connected to the drive shaft 2 of the high-speed press 1 via a timing belt mechanism (other drive mechanism) shown in FIG. It is driven to rotate in synchronization with the slide 3.

The first drum cam 13 for driving the advance / return operation of the feed bar 7 and the second drum cam 14 for driving the clamp / unclamp operation of the feed bar 7 are fixed to the cam shaft 12 and are provided inside the drive case 11. Is provided rotatably. A first slider 15 and a second slider 16 are provided in the drive case 11,
Each is driven by the first drum cam 13 and the second drum cam 14 and reciprocates in the drive case 11 in the left-right direction.

First and second links 18 are rotatably connected at one end to pins 17 fixed to the front and rear of the first slider 15, respectively, and rotatably connected at the other end to the front and rear feed bars 7, respectively. The left-right movement of the first slider 15 is
The feed bar 7 is transmitted to the feed bar 7 before and after the feed bar 7 to perform an advance return operation of the feed bar 7. A rod 19 fixed to the rear surface of the second slider 16 protrudes from the drive case 11, and a second link 20 is rotatably connected to the protruding tip.

A first clamping device 5 and a second clamping device 6
The rear feed bar guide mechanism 21 is provided on the rear side, and the front feed bar guide mechanism 22 is provided on the front side. The rear support 25 and the front support 26 fixed to the high-speed press 1 respectively make the support about the support center of rotation. Supported rotatably.

A rear lever 27 is fixed to the rear feed bar guide mechanism 21, and a front lever 28 is fixed to the front feed bar guide mechanism 22, respectively. 29
However, in the front feed bar guide mechanism 22, a front feed bar guide 30 is rotatably provided at a position eccentric to the rear support 25 and the front support 26.

The other end of the second link 20 is rotatably connected to a rear lever 27 of the first clamp device 5 provided on the drive unit 4 side. The rear lever 27 of the rear feed bar guide mechanism 21 of the first clamp device 5 and the second clamp device 6 is connected by a third link 31. The third link 31 passes through a cutout at the lower rear side of the bolster 8 provided in the high-speed press 1.

First clamping device 5 and second clamping device 6
Each of the rear lever 27 and the front lever 28 is connected by a fourth link 32 to form a rotation drive mechanism between the rear feed bar guide mechanism 21 and the front feed bar guide mechanism 22. The rear feed bar guide 29 of the rear feed bar guide mechanism 21 is connected to the rear feed bar 7.
The front feed bar guide 30 of the front feed bar guide mechanism 22 supports the front feed bar 7 so as to be slidable left and right.

The rotation of the first drum cam 13 causes the first slider 15 to move left and right, and the feed bar 7 performs left and right operations, that is, an advanced return operation, by the mechanism described above.
The rotation of the second drum cam 14 causes the second slider 16 to move left and right, and the rear feed bar guide mechanism 21 and the front feed bar guide mechanism 22 oscillate about the rear support 25 and the front support 26, respectively. Then, an operation of increasing or decreasing the interval between the rear feed bar guide 29 and the front feed bar guide 30 is performed, and the increase or decrease is transmitted to the feed bar 7 by the rear feed bar guide 29 and the front feed bar guide 30.
Performs clamp / unclamp operation.

The above embodiment of the rotary drive mechanism between the rear feed bar guide mechanism 21 and the front feed bar guide mechanism 22 corresponds to the link mechanism shown in FIG.
7C, the sector gear mechanism of FIG. 7C, and FIG. 7D.
Even if it is replaced with a timing belt mechanism or the like, there is no problem.

FIGS. 8, 9 and 10 show a second embodiment of the present invention.
This will be described below. The rod 51 provided with a rotatable cam follower is driven in the left-right direction by the second drum cam 14 fixed to the cam shaft 12. The lever 53 of the first clamping device 5 is driven from the rod 51 via the second link 52, and the lever 53 is further driven via the third link 54 into the second
The rear lever 55 of the clamp device 6 is driven.

A piston rod 56A of a cylinder device 56 is connected to the rear lever 55.
Is rotatably held by the high-speed press 1 and the cylinder device 5
The rod 51 is pressed against the second drum cam 14 by the compressed air supplied to the second drum cam 6 through the mechanism. Posts 57 of the first clamping device 5 and the second clamping device 6
Are fixed to the high-speed press 1 and rotatably hold a first feed bar guide mechanism 58 and a second feed bar guide mechanism 59, respectively.

A lever 53 is provided below the first feed bar guide mechanism 58 and the second feed bar guide mechanism 59.
And a rear lever 55, and a first lever 60 and a second lever 61 are fixedly provided at the upper part. The first lever 60 and the second lever 61 are provided with a front feed bar guide 62 and a rear feed bar guide 63, respectively, at a position away from the rotation center of the feed bar guide mechanism 58 and at a position equidistant from the rotation center. It is kept possible. The left and right front feed bar guides 62 and rear feed bar guides 63 respectively hold the feed bar 7 so as to be movable left and right.

By the reciprocating movement of the rod 51 in the left and right direction,
By the mechanism such as the link lever, the first lever 60
And the second lever 61 perform an oscillating rotation motion, and this motion widens or narrows the interval between the front and rear feed bars 7, thereby performing an unclamping / clamping operation of the feed bar 7. This mechanism is used when the operation amount of the unclamping / clamping is small.

[0022]

By using a drum cam as a drive source and forming a transfer device that transmits driving force by connecting with a link, the mechanism is simple, and each component can be reduced in size and weight. Transfer device.

[Brief description of the drawings]

FIG. 1 is an overall side view of a first embodiment of the present invention.

FIG. 2 is an overall plan view of FIG. 1;

FIG. 3 is an overall front view of FIG. 1;

FIG. 4 is a front sectional view of a main part of FIG. 1;

FIG. 5 is a plan sectional view of a main part of FIG. 1;

FIG. 6 is an embodiment of the rotary drive mechanism of FIG. 1;

7A is an explanatory view of a rotating mechanism showing a link mechanism. FIG. 7B is an explanatory view of a rotating mechanism showing a link mechanism. FIG. 7C is an explanatory view of a rotating mechanism showing a fan gear mechanism. Explanatory drawing of a rotation mechanism showing the case of a timing belt mechanism

FIG. 8 is an overall front sectional view of a second embodiment of the present invention.

9 is a front sectional view of a main part of FIG. 8;

FIG. 10 is a plan sectional view of a main part of FIG. 8;

[Explanation of symbols]

1 is a high-speed press, 2 is a drive shaft, 3 is a slide, 4 is a drive unit, 5 is a first clamp device, 6 is a second clamp device, 7 is a feed bar, 8 is a bolster, 11 is a drive case, and 12 is a cam shaft. , 13 are the first drum cam, 1
4 is the second drum cam, 15 is the first slider, 16 is the second slider
Slider, 17 is a pin, 18 is a first link, 19 is a rod, 20 is a second link, 21 is a rear feed bar guide mechanism, 22 is a front feed bar guide mechanism, 25 is a rear support,
26 is a front support, 27 is a rear lever, 28 is a front lever, 29
Is a rear feed bar guide, 30 is a front feed bar guide, 31 is a third link, 32 is a fourth link, 51 is a rod, 52 is a second link, 53 is a lever, 54 is a third link, 55 is a rear lever, 56 is a cylinder device, 56A is a piston rod, 57 is a support, 58 is a first feed bar guide mechanism, 59 is a second feed bar guide mechanism, 60 is a first lever, 61 is a second lever, and 62 is a front feed bar guide. Reference numeral 63 denotes a rear feed bar guide.

Claims (2)

(57) [Claims] 1. Processing using two feed bars before and after
For transfer equipment for high-speed press that sequentially conveys parts
The left or right side of the high-speed press
The drive unit and the first clamping device on the other side
To the second clamping deviceProvided,  Slide the high-speed press into the drive unit
The feed bar is driven in rotation in synchronization with
The first drum cam and the second drum cam are stored, and the first
The upper part of the ram cam is driven by the first drum cam.
A first slider reciprocating left and right is provided;
Project from the top of the drive unit onto the top of the slider.
Two pins are fixed in front and back, and this pin and the dry
And the two feed bars at the top and bottom of the unit
Connected to each other via a link, and
The rear of the ram cam is driven by the second drum cam.
A second slider reciprocating left and right is provided;
On the rear surface of the slider, the first
Insert the rod protruding toward the clamping deviceFixed  The first clamp device and the second clamp device include:
In each case, two columns are fixed to the high-speed press before and after,
Rear feed bar guide mechanism on the rear support and front support
The front feed bar guide mechanism and the support
And swingably and rotatably supported.
Rear levers are fixed to the lower part of the
The tip of the projecting part of the rod and the back of the first clamping device
The lever and the second link are connected to each other.
Through the notch in the left and right direction on the lower rear side of the bolster of the press
The first clamp device and the second clamp
Lever after theConcatenate,  The first clamp device and the second clamp device,
Rear feed bar guide mechanism and front feed bar guide
The mechanism is driven by the reciprocating left and right movement of the second slider.
Same angle swingRotate,Rear feed bar guide mechanism
And the upper part of the front feed bar guide mechanism, respectively
The rear and front feed bar guides are
At a position eccentric from the center of rotation of the guide bar guide mechanism,
The second slider is provided so as to be rotatable.
By the mechanism, the rear feed bar guide
And the front feed bar guide swings and rotates,Opening / closing operation
AndThe rear feed bar guide includes a rear feed bar,
The front feed bar guide holds the front feed bar, left
Sliding to the rightFeatured to guideHigh speed pre
Transfer device. 2. The system according to claim 1, wherein a second drum cam and a syringe are provided at a front portion in the drive unit.
Cam follower that is driven by the
The rod with the arm is connected to the first
To the pump device sideProvided,  The first clamp device and the second clamp device are each 1
This column is fixed to a high-speed press, and this one column is
Bar guide mechanisms are provided, and the column is rotating.
The first clamp device is supported so as to be swingable and rotatable around a center.
Of the feed bar guide mechanism of the second clamp device
In the lower part, the first clamp device side has a fulcrum on the front side and the rear side
Lever having a fulcrum at the rear side on the side of the second clamping device.
After each lever is fixedAnd  The front end of the rod projection and the front of the first clamping device
Connected to the front fulcrum of the lever by a second link,
Fulcrum and a rear lever of the second clamping device,
Notch in left and right direction at lower rear part of bolster of high-speed press
Are connected by a third link passing through the
The feed bar guide mechanism.Swing and rotate,After this
The bar and the piston of the cylinder device and the high-speed press
And cylinder are rotatably joinedProvided,  The first clamp device and the second clamp device,
The feed bar guide mechanism is driven by a rotary drive mechanism.
Same angleSwing and rotate,The first clamping device and the
The feed bar guide mechanism and the front of the second clamp device
At the top of the feed bar guide mechanism,
Feed bar guide and front feed bar guide
At a position eccentric from the rotation center of the
The second slider is provided so as to be rotatable.
Further, the rear feed bar guide and the front
The feed bar guide opens and closes.
The bar guide connects the rear feed bar and the front feed bar.
Id holds front feed bar and can swing left and right
Featured to guideTransfer equipment for high-speed press
Place.