JP3761341B2 - Transfer device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a transfer device that transports a workpiece engaged by a transfer bar, and more particularly, to a transfer device that can prevent the transfer bar from drooping in the longitudinal direction.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a transfer device has a transfer bar formed in a rod shape, and the workpiece is moved by a predetermined pitch by moving in the longitudinal direction while engaging the workpiece with an engaging claw formed at the tip of the transfer bar. Was intended to be transported. In addition, the transfer bar is arranged on a pedestal or base to support the lower surface of the bar.
[0003]
[Problems to be solved by the invention]
However, in such a conventional transfer device, the place of use is limited due to the relationship with the peripheral device. For example, when a workpiece that has been processed by one compounding device is moved forward and reversed, and then returned to the original compounding device for processing again, if the workpiece is reversed, the form will be different, so engagement with the workpiece Or an unloading device to return was necessary.
[0004]
In addition, for the convenience of the layout of the transfer device, when the transfer bar is disposed on the top or side of the work and supported from the top or side of the work, there is a problem that the transfer bar cannot be prevented from drooping due to the weight of the work. there were.
[0005]
Therefore, the present invention addresses such problems and enables the workpiece to move forward and backward, and even when the transfer bar is disposed on the top or side of the workpiece, An object of the present invention is to provide a transfer device that can prevent sagging.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, in the transfer device according to claim 1, the processing device and the side wall formed in a cylindrical shape are rotated, and the workpiece stored therein is placed between an upright state and an inverted state. A transfer device for transferring the workpiece between the transfer bar and a transfer bar extending in a substantially horizontal direction engageable with the workpiece in a cantilever state in which a base end portion is fixed, and the transfer bar Driving means for moving the transfer bar in the longitudinal direction thereof, a guide rail disposed substantially parallel to the transfer bar , and a transfer bar disposed at an intermediate portion of the transfer bar and supported by the guide rail. and a connecting means for rolling on the guide rail with the said guide rail, the first guide rails which are fixed to the apparatus frame , The position corresponding to the erected state and the inverted state of the work of the inverting device, to said first guide rail and a second guide rail are respectively fixed so as to form a straight line, characterized in that it consists of.
[0007]
According to this configuration, the work is conveyed by engaging and moving the work while the transfer bar is supported by the guide rail by the connecting means.
In the transfer device according to claim 2, the transfer device is disposed in parallel with the transfer bar and the guide rail, and supports the support rail fixed to the device frame, the base end of the transfer bar, and is supported by the support rail. And a bracket that rolls on the support rail, and the drive means moves the transfer bar by moving the bracket.
[0008]
According to such a configuration, when the bracket is moved by the driving means while being supported by the support rail, the transfer bar engaged with the workpiece is also moved to convey the workpiece.
[0009]
The transfer device according to a third aspect is characterized in that the workpiece is engaged by an engaging claw that is formed on the transfer bar and rotates with the rotation of the transfer bar.
[0010]
According to such a configuration, the transfer bar rotates and engages the engaging claws with the front and rear surfaces of the work, and then is moved by the driving means, and is rotated again to release the engagement of the engaging claws with the work.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in FIG. 1, the combined processing machine to which the transfer device of the present embodiment is applied includes a press processing device 1, a reversing device 2, a transport device 3, and a transfer device 19. The workpiece whose surface is pressed by the press working apparatus 1 is conveyed to the reversing apparatus 2 by the transfer apparatus 19, and the front and back surfaces are reversed by the reversing apparatus 2, and then returned to the transfer apparatus 19 again. And the back side is pressed. These series of operations are controlled by the control panel 4.
[0012]
As shown in FIG. 3, the workpiece subjected to press working by the press working apparatus 1 is a cylinder head 100 into which a valve guide 101 and a valve seat 102 are press-fitted. The cylinder head 100 is used for an in-line 6-cylinder engine, and two intake valves and two exhaust valves are provided for each cylinder. Further, a guide press-fitting portion 103 as a hole into which a valve guide 101 for guiding a shaft portion of an intake / exhaust valve (not shown) is press-fitted, and a hole into which a valve seat 102 abutting on the umbrella portion of the intake / exhaust valve is press-fitted A sheet press-fit portion 104 is formed. In addition, a side wall 106 is formed around the upper surface of the cylinder head 100 (upper side in the drawing in which the valve guide 101 is press-fitted) so that a bearing portion 105 that supports a camshaft (not shown) does not protrude from the end surface. As shown, the lower surface and the upper surface of the cylinder head 100 are formed in a shape that is not parallel.
[0013]
The press working apparatus 1 press-fits the valve guide 101 in a state where the guide press-fitting portion 103 of the cylinder head 100 is positioned upward (hereinafter referred to as “upright state”), and a state where the seat press-fitting portion 104 is positioned upward (hereinafter referred to as “upright state”). This is a press-fitting device for press-fitting the valve seat 102 in an “inverted position”.
[0014]
For this reason, as a press-fitting head, a guide press-fitting tool 5 for valve guide press-fitting and a seat press-fitting tool 6 for valve seat press-fitting and caulking are provided, and a slide plate 7 on which these are arranged is slid by a cylinder 8, A press-fit load applied from the press ram 9 is selected. That is, when the cylinder head 100 is in the upright position, the guide press-fitting tool 5 is positioned below the press ram 9, and when inverted, the cylinder 8 is operated so that the sheet press-fitting tool 6 is positioned below the press ram 9. Let
[0015]
The reversing device 2 has a side wall 10 formed in a cylindrical shape, and reverses the cylinder head 100 transported therein by the transfer device 19 from an upright state to an inverted state. That is, the chain 11a wound around the outer peripheral surface of the side wall 10 is driven by the drive source 11 to rotate the side wall 10, thereby reversing the cylinder head 100 stored therein.
[0016]
In addition, two guide rails 13b extending in the direction in which the cylinder head 100 is carried in and out are disposed inside, and these guide rails 13b are arranged at the rotation end of the side wall 10 (when rotating from an upright state to an inverted state). Or a stop position when rotating from the inverted state to the upright state) and is formed so as to form a straight line with the guide rail 13a on the press working apparatus 1 side.
[0017]
The transport device 3 transports the cylinder head 100 placed on the pallet 18, and in particular, transport between the transport device 3 and the reversing device 2 is performed by a transfer device. The transfer device includes a transfer bar 12, a drive cylinder 14 as drive means, a guide rail 13, a bracket 15, a connecting means 16, and a support rail 17 (see FIG. 2).
[0018]
Hereinafter, the transfer apparatus will be described with reference to FIG.
The transfer bar 12 is formed in a rod shape and includes an engaging claw 12 a that can engage with the cylinder head 100. Further, the transfer bar 12 can be rotated by a rotation driving means 15a disposed on a bracket 15 to be described later. By this rotation, the engaging claw 12a rotates about the axis of the transfer bar 12, and the cylinder head. It contacts and separates from the front and rear surfaces of 100. In addition, the cylinder head 100 is engaged with the engagement claw 12a when the engagement claw 12a contacts the front and back surfaces of the cylinder head 100.
[0019]
The transfer bar 12 is provided with connecting means 16, and the connecting means 16 rolls on a guide rail 13 fixed to the apparatus frame. As shown in FIG. 4, the connecting means 16 and the guide rail 13 are connected by three rollers 16 a housed in the connecting means 16. Therefore, the transfer bar 12 can be prevented from sagging due to its own weight or the weight of the cylinder head 100 to be conveyed.
[0020]
Since the base end portion of the transfer bar 12 is supported by a bracket 15 and the bracket 15 is supported by a support rail 17 fixed to the apparatus frame, the bracket 15 rolls on the support rail 17, The transfer bar 12 moves in the longitudinal direction. Two support rails 17 are arranged in parallel in the vertical direction (in the drawing, the direction perpendicular to the paper surface).
[0021]
Since the bracket 15 is coupled to the rod of the drive cylinder 14, the bracket 15 is translated along the support rail 17 by the operation of the drive cylinder 14. Here, the drive cylinder 14 has two concentric rods. When the drive cylinder 14 is extended, the first rod first extends, and when the first rod is fully extended, the second rod extends. It is an extension cylinder (telescopic cylinder). Therefore, the length dimension of the device can be suppressed as compared with the one having one rod.
[0022]
The operation of the transfer device having the above configuration is as follows.
First, after press-fitting processing is performed on the cylinder head 100 in an upright state by the press working device 1, the rotation driving unit 15 a is driven to rotate the transfer bar 12, and the engaging claws 12 a are placed on the front and rear surfaces of the cylinder head 100. Abut.
[0023]
Thereafter, the drive cylinder 14 is driven to extend its rod, and the bracket 15 rolls along the support rail 17. Along with this, the transfer bar 12 moves while being supported by the guide rail 13 by the connecting means 16, and the cylinder head 100 on the pallet 18 is transferred into the reversing device 2. At this time, the connecting means 16 rolls from the guide rail 13a on the press working device 1 side to the guide rail 13b in the reversing device 2.
[0024]
Then, the rotation driving means 15a is driven to rotate the transfer bar 12 in the direction opposite to that at the time of engagement, the engagement claw 12a is disengaged from the cylinder head 100, the transfer bar 12 is retracted, and then reversed. The device 2 is rotated. Thereby, the cylinder head 100 inverted from the upright state to the inverted state is engaged with the engaging claw 12a of the transfer bar 12 that has advanced again, and is returned from the inside of the reversing device 2 to the pallet 18 on the conveying device 3 side. The cylinder head 100 placed on the pallet 18 in an inverted state has its upper surface substantially parallel to the floor surface by a tilt mechanism provided in the pallet 18.
[0025]
When the cylinder head 100 is placed on the pallet 18, the engagement by the engagement claws 12 a is released, and the press processing device 1 processes the upper surface of the cylinder head 100 in an inverted state.
[0026]
Although the present embodiment has been described above, the present invention is not limited to this, and may be a transfer device that conveys between other processing devices. Further, the work to be conveyed may be other than the cylinder head.
[0027]
【The invention's effect】
Since the present invention is configured as described above, according to the transfer apparatus of the first aspect, the transfer bar is supported by the guide rail fixed to the apparatus frame by the connecting means. Sagging due to weight can be prevented.
[0028]
According to the transfer device of the second aspect, since the driving means for driving the transfer bar is based on the movement of the bracket supported by the support rail, the transfer bar can be arranged on the upper part or the side part of the work. The degree of freedom of layout can be improved.
[0029]
According to the transfer device of the third aspect, since the work is engaged by the engaging claws that rotate as the transfer bar rotates, for example, a means for rotating the transfer bar can be provided on the bracket. Can be simplified. Further, if the operation of the driving means is controlled, the workpiece engaged by the engaging claw can be moved forward and backward.
[Brief description of the drawings]
FIG. 1 is a side view showing a multi-tasking machine to which a transfer apparatus according to the present invention is applied. FIG. 2 is a top view showing a transfer apparatus according to the present invention. FIG. 3 shows a cylinder head conveyed by the transfer apparatus according to the present invention. Side view [FIG. 4] Cross-sectional view showing the connecting means of the transfer apparatus according to the present invention [Explanation of symbols]
1 ... Press processing equipment
2 ... Inversion device 12 ... Transfer bar 12a ... Engaging claw 13 ... Guide rail
13a ... guide rail
13b ... guide rail 14 ... drive cylinder 15 ... bracket 16 ... connecting means 17 ... support rail 19 ... transfer device

Claims (3)

It is a transfer device that transports a workpiece between a processing device and a reversing device that rotates a side wall formed in a cylindrical shape and reverses the workpiece stored therein between an upright state and an inverted state. And
A transfer bar extending in a substantially horizontal direction that can be engaged with a workpiece in a cantilever state in which a base end portion is fixed ;
Drive means for moving the transfer bar in its longitudinal direction;
A guide rail disposed substantially parallel to the transfer bar;
A connecting means disposed on an intermediate portion of the transfer bar and rolling on the guide rail as the transfer bar moves while being supported by the guide rail;
With
The guide rails are fixed so as to form straight lines with the first guide rails fixed to the device frame and at positions corresponding to the upright state and the inverted state of the work of the reversing device, respectively. And a second guide rail . A support rail disposed in parallel with the transfer bar and the guide rail and fixed to the apparatus frame;
A bracket that supports the transfer bar base end and rolls on the support rail while being supported by the support rail;
With
The transfer device according to claim 1, wherein the driving unit moves the transfer bar by moving the bracket.   The transfer device according to claim 1, wherein the workpiece is engaged by an engaging claw that is formed on the transfer bar and rotates with the rotation of the transfer bar.

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