JPS6013561Y2 - Feed bar joint device - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a feed bar joint device in a workpiece transfer device employed in, for example, a transfer press or the like.

[Conventional technology]

Transfer equipment continuously performs various operations such as pressing and punching, so when the workpiece is changed, the press equipment and punching equipment can be replaced, and at the same time, the workpiece can be transported intermittently. In order to do this, the feed bar must be replaced.

Such a feed bar is carried in and out from a direction perpendicular to the flow direction of the workpiece on an extension of the feed bar on the equipment side by a trolley equipped with a press lower die, etc. After being carried into the hospital, it is placed on the bed.

At this time, the device side feed bar and the truck side feed bar are at the same level, and their free ends are configured to oppose each other 1, and the feed bar free ends are connected by bolts and nuts via a connecting tool, When transporting the movable feed bar, it is necessary to remove bolts and nuts to separate it from the feed bar on the apparatus side, which has the disadvantage that the operation is troublesome.

Therefore, in view of this situation, a pair of coupling holders each having a longitudinally inclined stepped portion are fixed to the opposite end faces of the transfer bar so that the cylindrical body faces each other. A transfer bar of a feeder device, in which a connecting piece that is closely fitted over two parts is biased in the detachment direction, and the connecting piece can be pressed and moved to a close fitting position by a moving piece that is reciprocated by a drive source. has been proposed (see Japanese Utility Model Publication No. 9296/1983).

[Problem that the invention attempts to solve]

However, in the conventional transfer bar mentioned above, unless the transfer bar is moved in its longitudinal direction and the coupling piece is removed from the cylinder, the central transfer bar must be moved along with the moving carrier (truck) at right angles to the transfer bar. The problem is that the transfer bar cannot be pulled out in the longitudinal direction, and since the hydraulic cylinder device for moving the transfer bar in the longitudinal direction is housed inside the transfer bar, a connection to a hydraulic power source is required, resulting in a complicated structure. There are problems such as the risk of oil leakage.

[Means for solving problems]

The present invention is a feed bar coupling device for a transfer device that can eliminate the above-mentioned problems. The feed bar on the movable side can be carried between the feed bars on the machine side on both sides from a perpendicular direction and taken out using a trolley, and the opposing end surfaces of the feed bar on the machine side and the movable side feed bar are separated from each other. A vertically inclined surface is formed in order to abut and hold both feed bars in a straight line, and positioning joint pin insertion holes are provided in opposing parts of both feed bars so as to communicate and match with each other, and the insertion holes are provided. A positioning joint pin that is movable between the positioning joint position and the separated storage position is inserted into the feed bar, and a swinging engagement hook that can hold and release the engaging pin from the other feed bar is attached to one of the opposing feed bars. , the swinging engagement hook is configured to engage the engagement pin when the positioning engagement pin is in the engagement position.

[Effect]

In this invention, when connecting the feed bars on the equipment side and the movable side, first support the movable side feed bar on a trolley, and then connect it to the left and right equipment side feed bars in a direction perpendicular to the flow direction of the workpiece. Transport between.

At this time, by supporting the movable side feed bar slightly above the device side feed bar and carrying it in, the conveyance can be carried out smoothly.

After carrying in, the movable feed bar is lowered to bring both inclined surfaces into contact with each other, and then the positioning joint pin is moved to the positioning joint position.

At this time, the positioning joining pin is positioned across the two opposing fitting holes, correctly positioning the movable side feed bar on the extension of the device side feed bar, and joining.

Next, the swinging engagement hook is brought down to engage the retaining pin of the mating feed bar.

When the retaining pin uses an eccentric mechanism to pull the hook portion toward the opposing feed bar, both feed bars are firmly connected.

In addition, when separating both feed bars, the operation may be performed in the completely reverse order to the above.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

The feed bar in the present invention is divided into left and right device side feed bars 1 and a central movable side feed bar 2, and a feed bar joint device 3 is provided between the opposing ends of both feed bars 1 and 2. It is being

Therefore, the drawing only shows parts of this feed bar coupling device 3.

The joint device 3 is formed from a pair of left and right joint members fixed to opposing portions of the feed bars 1 and 2 by bolts 4 or the like, respectively.

Reference numeral 5 denotes a movable joint member having an upper opening 6, and a horizontal shaft 7 is disposed at an upper position near the base thereof.

This horizontal shaft 7 is supported by an elongated hole 9 formed longitudinally in the side wall 8 of the movable joint member 5 so as to be able to move left and right 10, and passes through a square bearing 11 between the side walls 8. It is fixed to the bearing 11 by a rotation stop pin 12.

A bracket 13 is protruded from the movable joint member 5 at a position facing the front of the square bearing 11, and the elongated hole 9 is inserted between the bracket 13 and the square bearing 11 by a pair of left and right disc spring devices 14. The horizontal shaft 7 is biased toward the base of the movable joint member 5 through the movable joint member 5.

Movement of the horizontal shaft 7 due to this bias is prevented by a stopper 15 provided at the rear of the square bearing 11, and the square bearing 11 is normally positioned in contact with this stopper 15.

A base end portion 18 of a swinging engagement hook 17 having a hook tip portion 16 formed at the end thereof is rotatably fitted onto the horizontal shaft 7 .

This swinging engagement hook 17 is configured such that the portion other than the base end 18 covers the upper opening 6 of the movable joint member 5, and the engagement concave surface 16a of the hook tip 16 is formed into a cylindrical inner surface shape. has been done.

A pin insertion hole 19 is provided in the lower part of the movable joint member 5 in the longitudinal direction.
is bored, and a long hole 21 is provided along almost the entire length of the side portion of the peripheral wall 20.

A positioning joint pin 23 having a vertical groove 22 in the axial direction of the lower outer surface is slidably fitted and held in the pin insertion hole 19, and a through hole 24 corresponding to the elongated hole 21 is bored at the rear of the pin 23. By inserting an operating rod (not shown) into the through hole 24 and moving it along the elongated hole 21, the pin 23 can be moved in and out of the pin insertion hole 19 and retracted and retracted. There is.

Further, an engagement hole 23a is formed in the upper central part of the pin 23, in which a stopper 25 provided in the peripheral wall 20 of the pin insertion hole 19 is engaged, and the engagement hole 23a is engaged with a stopper 25 that is biased by a spring. When the pin is protruded from the pin insertion hole 19, the stopper 25 engages with the engagement hole 23a, and the pin 23 is positioned and joined.

As shown in FIG. 5, the stopper 25 has a casing 26 embedded in the circumferential wall 20 of the fitting hole and a protruding pin 27 fitted into the casing 26, and a spring 28 is disposed between the two for biasing. ing.

Reference numeral 29 denotes a device-side joint member, and an engagement pin 30 with which the swinging engagement hook tip portion 16 engages with the upper part of the coupling member 29.
is disposed perpendicularly and horizontally to the feed bar, one end of this retaining pin 30 projects outward from the side wall 31 of the device side joint member 29, and a rotation operation part 32 is provided on the projecting part. There is.

The center engagement portion of the engagement pin 30 is formed to have its center at a position eccentric by one point relative to the pivot axis of the rotation operation portion 32. When the pin is rotated, the pin center engaging portion rotates and moves in parallel to the left and right.

Further, a projection 34 having a notch hole 33 is fixed to the rotation operation portion 32, and the projection 34 can be engaged with a fixing bolt device 35 protruding from the side wall 31 in the lateral vicinity of the rotation operation portion 32. It becomes.

36 is a nut that is tightened. A fitting hole 37 is formed in the lower part of the device side joint member 29.

This fitting hole 37 is the pin fitting hole 1 of the movable joint member 5.
9, and both pin insertion holes 19.37 are adapted to communicate with each other.

A stopper pin 38 is protrudingly provided inside the pin insertion hole 37 so as to contact the front surface of the positioning joint pin 23 to position it when the positioning joint pin 23 is inserted thereinto.

Then, the opposing surfaces 5a and 29a of the movable joint member 5 and the device side joint member 29 are in contact with each other, and the circumferential joint member 5.2-
9 is made into an inclined surface to keep it in a straight line.

When connecting the feed bars 1 and 2 on the device side and the movable side using the coupling device of the present invention, first, the movable side feed bar 2 with the movable side joint members 5 attached to both ends is supported on a cart, and then The workpiece is conveyed between the left and right feed bars 1 on the apparatus side from a direction perpendicular to the flow direction of the workpiece.

At this time, as shown by the imaginary line in FIG. 2, by supporting the movable feed bar 2 slightly above the device side feed bar 1 and carrying it in, the carrying can be carried out smoothly, and the circumferential joint member 5,29 slope 5 at 29
By a, the stroke of the bogie during connection can be reduced.

After loading, the movable feed bar 5 is lowered to bring both inclined surfaces 5a and 29a into contact with each other, and then an operating rod (not shown) is inserted into the through hole 24 of the positioning joint pin 23 through the elongated hole 21. When this is moved in the direction of the device side joint member 29, the pin 23 enters the pin fitting hole 37 and its tip hits the stopper pin 38, and the protruding pin 27 of the stopper 25
is engaged with the engagement hole 23a, and the positioning joint pin 23 is positioned and joined.

At this time, the positioning joint pin 23 is inserted into the two pin insertion holes 19.
, 37 to position the movable feed bar 5 on the extension of the device feed bar 1.

Next, fold down the swinging engagement hook 17, and
6 is engaged with the engagement pin 30.

The engaging pin 30 has its central retaining portion as shown in the imaginary line in FIG.
It is positioned close to the movable side feed bar 2 side, and after engaging the hook 17, the rotation operation part 32 is rotated, and the hook tip part 16 is rotated by using the eccentric relationship of the central engagement part.
When the horizontal shaft 7 is pulled toward the device side feed bar 1 side, the horizontal shaft 7 along with the rectangular bearing 11 resists the biasing force of the disc spring device 14.
moves along the elongated hole 9, and therefore both feed bars 1, 2
are strongly connected.

Next, when separating both the feed bars 1 and 2, the operation is performed in the completely reverse order to that described above, the hook 17 is flipped up, and the positioning joint pin 23 is stored in the pin insertion hole 19.

According to the embodiment device described above, since the opposing surfaces of the circumferential joint member 5.29 are in contact with each other via the inclined surfaces 5a and 29a, the movable feed bar 2 can be carried in and out very easily. .

That is, when the facing surfaces of the circumferential joint members 5 and 29 are both vertical surfaces, a gap is provided between both surfaces to prevent collision between the opposing surfaces during loading and unloading, and this gap is removed after loading. In order to do this, it is necessary to move the feed bar on the equipment side, and if there is no gap, the feed bar on the movable side must be supported above the feed bar on the equipment side to be carried in, so the stroke of the trolley when connecting is increased. I need to take it.

However, in this embodiment, this is not necessary.

Further, since the central engagement portion of the engagement pin is eccentric with respect to the pivot axis of the operating portion 32, it can be rotated to make the engagement state very strong.

[Effect of idea]

Since the present invention has the above-mentioned configuration, it has a simple structure and does not have a hydraulic system, so there is no need for piping, there is no oil leakage, and the positioning joint pin can be pulled out from the insertion hole of the mating feed bar. It can be smoothly separated by simply removing the swinging engagement hook from the engagement pin, and it is also easy and reliable to connect the movable feed bar with the bolster truck without moving the feed bar in its longitudinal direction. can be extracted.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an embodiment of the device according to the present invention, FIG. 2 is a side view of the same, FIG. 3 is a view taken along arrow A-A in FIG. 1, and FIG.
5 is a view taken along line C-C in FIG. 2, and FIG. 5 is a view taken along line C-C in FIG. 1... Device side feed bar, 2... Movable side feed bar, 3... Joint device, 5...
...Movable side joint member, 5a...Slanted surface, 7.
... Horizontal shaft, 17 ... Swing engagement hook, 1
9...Pin insertion hole, 23...Positioning joint pin, 29...Device side joint member, 29a...
... Slanted surface, 30 ... Engagement pin, 37 ...
...Pin insertion hole.

Claims (1)

[Scope of utility model registration request] The feed bar of the transfer device is divided into a central movable side feed bar and equipment side feed bars located on both sides of this, and the movable side feed bar is carried from a perpendicular direction between the equipment side feed bars on both sides by a cart. The opposite end surfaces of the device side feed bar and the movable side feed bar are brought into contact with each other to hold both feed bars in a straight line. Positioning joint pin insertion holes are provided in opposing parts of the feed bar so as to communicate and match with each other, and a positioning joint pin that is movable between a positioning joint position and a separated storage position is inserted into the insertion hole, and the opposite side A swinging engagement hook capable of engaging and disengaging the engagement pin from the other feed bar is attached to the feed bar, and the swinging engagement hook can engage the engagement pin when the positioning joint pin is in the joining position. A feed bar joint device configured as follows.