JP3358860B2 - Work direction changing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a direction changing device for changing a work transfer direction to an arbitrary angle.

[0002]

2. Description of the Related Art When changing the direction of a workpiece during conveyance,
A turntable is used.
The turntable is rotated by the cylinder and the link. Therefore, the turntable cannot be rotated more than 90 degrees.
The direction of the work is changed by rotating in two stages.

For example, in a door assembling line, as shown in FIG. 8, a door (1) assembled in a door assembling line (A) is rotated by 180 degrees on one side and is raised so that an assembling line ( B), on the other hand 105
It is rotated upright and raised to flow to the supply line (C).

In such an assembling line, the door (1) sent from the assembling line (A) is turned 90 degrees by the first turntable (2), and the next turn is made by the belt conveyor (3). 2 Turntable (4), turn it further 90 degrees, send it to the erecting step (6) by the belt conveyor (5), and then lift the door (1), and hang it on the hanging conveyor (not shown). ) To the assembly line (A). On the other hand, it is turned by 30 degrees on the second turntable (4) and sent out to the erecting step (8) by the belt conveyor (7). C).

[0005]

In the conventional equipment, four steps are required for the direction change and sorting of the door (1), and two kinds of first and second turntables (2) and (4) and an erecting device. (6) (7) Further, a plurality of belt conveyors (3), (5), (7) are required to connect them, and a wide space is provided in front, rear, left and right by simply changing the direction of the door (1). (L) and (W). In addition, many devices are required, and the cost is high.

An object of the present invention is to provide a device that can rotate a work at an arbitrary angle with one device.

Another object of the present invention is to provide an apparatus which can stand up after rotating a work at an arbitrary angle.

[0008]

Means for Solving the Problems] This invention is carried
Change the transport direction of the car door (1)
(B) is a direction change device for distributing and discharging to (C), a turntable (14) rotatably supported on a base frame (10), and a turntable on the base frame (10), and
The turntable (14) is attached to the side of the table (14).
Rotation driving means (2 ) having a driving motor (15) for
And 2) rotation control means for stopping the rotation driving means to detect (22) the rotation angle of the turntable (14) and (23), before
Turntable installed below the turntable (14)
Stop means for mechanically indexing and holding (14) at a predetermined angle
(36), an undulating table (55) that is provided on the upper surface of the turntable (14) so as to be able to undulate, and undulates an automobile door (1) as a work ; 56) and a.

In addition, the transport of the car door (1) which has been carried in
Change the sending direction and distribute to multiple lines (B) (C) and carry out
Direction changing device, which rotates on the base frame (10).
The turntable (14) supported by the
On the room (10) and beside the turntable (14)
Drive motor to drive the turntable (14) by belt
(15) a rotary drive means (22), and the turntable
The rotation angle of (14) is detected and the rotation drive means (22) is stopped.
Rotation control means (23)
The turntable (14) is installed at a predetermined angle mechanically.
Stopping means (36) for indexing and holding;
(14)
An undulating table (55) for raising and lowering the car door (1);
Up and down means (56) for raising and lowering the bed table (55);
The table (55) carries the door (1) into the horizontal part (55a).
Conveyors (61) and (62) for
The vertical conveyor (55b) formed at one end of the flat part (55a)
A) The unloading conveyor that unloads the door (1) in the same direction as (61) and (62).
A (65), and at the other end of the horizontal part (55b).
A fall prevention bar (71) is provided via a girder bracket (70),
Door between the carry-in conveyor (61) (62) and the fall prevention bar (71)
It is configured to include (1).

The unloading conveyor (65) is a roller conveyor.
Swinging and tilting the carry-out conveyor (65),
The door (1) on the unloading conveyor (65) is unloaded by its own weight.
It is configured so that

[0011]

The direction changing device rotates the turntable when the work is loaded onto the undulating table, stops the rotation at a predetermined rotation angle by the rotation control means, and mechanically moves the turntable by the stop means. After stopping, the work is erected by raising the undulation table by the undulation means. In this way, the work can be rotated and erected by the rotation of the turntable and the erecting operation of the undulating table with one device.

If a drive motor is provided on the side of the turntable and the turntable is driven by a belt, the turntable can be rotated at an arbitrary angle, and the height of the entire turntable can be reduced. As a result, the entire apparatus can be downsized.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In this embodiment, a structure in which the turntable is stopped by rotating the turntable by 105 degrees or 180 degrees from a predetermined position is shown.

As shown in FIGS. 1 and 2, the direction changing device includes a boss (11) mounted on a base frame (10).
A rotatable shaft (13) is rotatably supported via a bearing (12), and a turntable (14) is mounted on the rotatable shaft (13). The lower end of the rotating shaft (13) protrudes below the base frame (10). A drive motor (15) with a speed reducer is mounted on the base frame (10) on the side of the rotating shaft (13) so that the position of the drive motor (15) can be adjusted in the front-rear direction, and the output shaft (16) is placed below the base frame (10). Projecting. A toothed belt (21) is mounted between a drive gear (17) attached to the drive motor (15) and a driven gear (20) attached to the rotating shaft (13),
The turntable (14) is reciprocally rotated via a rotation drive mechanism (22) including a drive motor (15) and a drive gear (17), a toothed belt (21), and a driven gear (20), and a rotation shaft (13). It is made to let. The drive motor (15) has a built-in brake, and the brake is applied by a stop signal so as to be surely stopped.

As shown in FIG. 3, a rotation control means (23) for stopping the turntable (14) at a predetermined rotation angle is provided on the lower surface of the turntable (14). The rotation control means (23) includes, for example, a plurality of sets of stop limit switches (24) (25) (26), deceleration limit switches (30) (31) (32), and stop limit switches (24) (25) ( A dog (27) for kicking 26) and three types of dogs (33) (34) (35) for kicking deceleration limit switches (30) (31) (32). A rotation return end stop limit switch (24) is attached to the reference position concentrically with the rotating shaft (13), and a 105-degree rotation stop limit switch (25) is attached at a position 105 degrees clockwise from FIG. A 180-degree rotation end stop limit switch (26) is attached at a position 180 degrees clockwise from the reference position. A rotation return deceleration limit switch (30), a 105-degree rotation deceleration limit switch (31), and a 180-degree rotation end deceleration limit switch (32) are provided beside the stop limit switches (24), (25), and (26). Installed. On the other hand, a stop dog (27) for kicking each stop limit switch (24) (25) (26) is attached to the lower surface of the turntable (14), and each deceleration limit switch (30) is provided at three positions on the side surface of the turntable (14). ) Deceleration dogs (33), (34) and (35) for individually kicking (31) and (32) are attached. At the reference position, 105 degrees and 180 degrees, the deceleration dogs (33), (34) and (35) kick the deceleration limit switches (30), (31) and (32) to decelerate the drive motor (15). After that, the stop dog (27) kicks the stop limit switches (24), (25), (26) to stop the drive motor (15).

Below the turntable (14),
As shown in FIG. 3, a stop means (36) for mechanically indexing and holding the turntable (14) is provided. The stopping means (36) includes a ring-shaped cam (37) and first and second cams (37).
It comprises a lock mechanism (40) (41). Cam (37)
Is mounted on the lower surface of the turntable (14) concentrically with the rotating shaft (13), and the cam (3) is mounted on the base frame (10).
7), the first lock mechanism (40) is located at the reference position.
And the second lock mechanism (41) is attached at a position rotated by 180 degrees from the reference position.

The reference position and 18 are located on the lower surface of the cam (37).
A first V-groove (38) for detecting a 0-degree rotation position is formed at a reference position, and a second V-groove (39) for detecting 105-degree at a position rotated 105 degrees counterclockwise from the reference position.
Is formed.

The first lock mechanism (40) and the second lock mechanism (41) have the same structure, and the first lock mechanism (40)
4 and 5, a support block (44) is attached to a base frame (10) via a bracket (43), and a notch (45) is attached to the support block (44) so as to be able to move up and down. , Support block (44)
A notch cylinder (46) is attached to the lower surface of the notch, and the notch (45) is moved up and down by the notch cylinder (46). At the top of the notch (45) is a cam follower (4
7) is rotatably mounted, rotates along the lower surface of the cam (37) when the notch (45) is raised, and enters the first V groove (38) or the second V groove (39) to move the cam (3 ) .
7) is locked, and the turntable (14) is mechanically stopped. Also, the detection protrusion (5) is provided on the side of the notch (45).
0) and attach the detection protrusion (5) on the bracket (43).
0) is installed, and a notch (4)
The lifting / lowering state of 5) is detected.

As shown in FIGS. 1 and 6, on the turntable (14), an up / down table (55) for erecting the door (1) and an up / down means (56) for elevating the up / down table (55) are provided. I have. The undulating table (55) is provided on a support frame (5) standing upright on the upper surface of the turntable (14).
The upper end of 3) is supported on the support shaft (54) as a fulcrum so that it can be raised and lowered. The undulating means uses, for example, an undulating cylinder (56) and is swingably supported on a turntable (14).
The piston rod (57) of the undulating cylinder (56) is connected to the undulating arm (60) attached to the lower surface of the undulating table (55), and the undulating arm (60) is pushed and pulled by the expansion and contraction operation of the undulating cylinder (56). The undulation table (55) is raised and lowered. The undulating table (55) has a vertical portion (55) at one end of the horizontal portion (55a).
b), and the horizontal part (55a) has a door (1).
Conveyors (61) and (62) for loading
Are mounted in parallel. Loading conveyor (61) (62)
Uses a belt conveyor.

The vertical portion (55) of the undulation table (55)
As shown in FIG. 6, b) has a horizontally extending support portion (6).
3) The swinging shaft (64) is swingably supported between (63) and the door (1) standing on the swinging shaft (64) is received.
In addition, an intermediate portion of an unloading conveyor (65) to be unloaded is connected. The carry-out conveyor (65) uses a roller conveyor. First and second swing cylinders in which a swing arm (66) is connected to an intermediate portion of a swing shaft (64), and the vertical portion (55b) and the swing arm (66) are connected back to back. (6
7) The swing arm (66) is swung in (68), and the swing shaft (64) is extended and retracted by the first and second swing cylinders (67) and (68) when the up-and-down table (55) stands up. With the fulcrum as a fulcrum, the carry-out conveyor (65) is swung and tilted so that the door (1) placed on the carry-out conveyor (65) is carried out by its own weight. For example, the first swing cylinder (67)
When the second oscillating cylinder (68) is extended in a state where is shortened, the unloading conveyor (65) stops at the intermediate position and does not tilt. In this state, the first swing cylinder (67)
When the extension operation is performed, the unloading conveyor (65) tilts upward to the right in FIG. 6, and conversely, when the second swing cylinder (68) shortens, the unloading conveyor (65) tilts downward to the right.

The undulation table (55) has L at the other end.
Fall prevention bar (71) via shaped bracket (70)
The door (1) is inserted between the carry-in conveyors (61) and (62) and the fall prevention bar (71).

The direction changing device is installed between the door assembly line (A) and the next assembly line (B) as shown in FIG. 7, for example, and is replenished in the direction rotated by 105 degrees in the supply line (C). Is attached. Then, the direction changing device causes the undulation table (55) to fall down to the horizontal portion (55).
Perform a) horizontally and stand by with the turntable (14) stopped at the reference position. In this state, the carry-in conveyors (61) and (62) face the carry-out conveyor (73) in the previous process.

When the door (1) assembled from the previous process is sent, the carry-in conveyors (61) and (62) operate to receive the door (1) and carry the door (1) onto the undulating table (55). When it stops by hitting a stopper (72) provided at the tip of the conveyor (61) (62), the carry-in conveyor (61) (62) is stopped.

Next, the drive motor (15) is operated to rotate the turntable (14). If the loaded door (1) is to be sent to the assembling line (B), the notch cylinder (46) of the second lock mechanism (41) extends to raise the notch (45), and the notch (45) The cam follower (47) attached to the upper end of the cam is pressed against the cam (37). Then, when the turntable (14) comes a little short of 180 degrees, the deceleration dog (35) kicks the 180 degree deceleration limit switch (32) and decelerates the drive motor (15). And turntable (14)
Slowly rotates up to 180 degrees, the cam follower (47) attached to the upper end of the notch (45) of the second lock mechanism (41) enters the first V-groove (38) of the cam (37) and turns the turntable. (14) is mechanically stopped. At the same time, the stop dog (27) kicks the 180-degree stop limit switch (26) to stop the drive motor (15). After the stop, the notch cylinder (46) of the second lock mechanism (41) performs a shortening operation to lower the notch (45), thereby allowing the cam follower (47) to escape from the first V groove (38).

When the turntable (14) is rotated by 180 degrees, the up / down cylinder (56) is shortened to elevate the up / down table (55) and erect the door (1) almost vertically. When the undulating table (55) stands up, the door (1)
Is held by a carry-out conveyor (65) provided in a vertical portion (55b) of the undulating table (55). Thereafter, the first swing cylinder (67) is extended to carry out the unloading conveyor (65).
Is tilted upward and the door (1) is carried out by its own weight, and carried out to the assembly line (B).

When the unloading of the door (1) is completed, the first swinging cylinder (67) is shortened to return the unloading conveyor (65) to the intermediate position, and then the up-and-down cylinder (56) is extended and undulated. The table (55) is turned down. Next, the drive motor (15) rotates in the reverse direction to return the turntable (14) to rotation. At the time of this return, the notch cylinder (46) of the first lock mechanism (40) extends to raise the notch (45), and the cam follower (47) provided at the upper end of the notch (45) is moved to the cam (37). Press. The deceleration dog (33) is rotated by the rotation return end deceleration limit switch (3).
When kicking 0), the drive motor (15) is decelerated, causing the turntable (14) to rotate slowly. When the turntable (14) returns to the return end, the cam follower (47) of the first lock mechanism (40) enters the first V-groove (38) formed in the cam (37) to mechanically turn the turntable (14). And stop dog (2
7) kicks the rotation return end stop limit switch (24) to stop the drive motor (15). After the stop, the notch cylinder (46) of the first lock mechanism (40) is shortened to lower the notch (45), and the cam follower (47) is released from the first V groove (38).

If the door (1) conveyed by the carry-in conveyors (61) and (62) onto the hoisting table (55) is to be sent to the replenishment line (C), the drive motor (15) rotates at the same time. The notch cylinder (46) of the first lock mechanism (40) extends to raise the notch (45), and the cam follower (4) attached to the upper end of the notch (45).
7) is pressed against the cam (37). Then, when the deceleration dog (34) kicks the 105 degree deceleration limit switch (31), the drive motor (15) is decelerated, and the turntable (14) is slowly rotated, and the turntable (1) is rotated.
4) When the cam follower (47) rotates to 105 degrees
Enters the second V-groove (39) of the cam (37) and mechanically stops the turntable (14). At the same time, the stop dog (27) kicks the 105-degree stop limit switch (25), and the drive motor (15) ) To stop. After the stop, the notch cylinder (46) of the first lock mechanism (40) is shortened, and the cam follower (47) is released from the second V groove (39).

When the turntable (14) is rotated by 105 degrees, the up / down cylinder (56) is shortened to elevate the up / down table (55) and erect the door (1) almost vertically. When the undulating table (55) stands up, the door (1)
Is held by a carry-out conveyor (65) provided in a vertical portion (55b) of the undulating table (55). Thereafter, the second swing cylinder (68) performs a shortening operation and the carry-out conveyor (65).
Is tilted downward to the right, and the door (1) is carried out by its own weight, and carried out to the supply line (C).

When the unloading of the door (1) is completed, the second swinging cylinder (68) extends to return the unloading conveyor (65) to the intermediate position, and then the undulating cylinder (56) extends and undulates. The table (55) is turned down. Next, the drive motor (15) rotates in the reverse direction to return the turntable (14) to rotation. At the time of this return, the notch cylinder (46) of the first lock mechanism (40) extends to raise the notch (45), and the cam follower (47) provided at the upper end of the notch (45) is moved to the cam (37). Press. The deceleration dog (33) is rotated by the rotation return end deceleration limit switch (3).
When kicking 0), the drive motor (15) is decelerated, causing the turntable (14) to rotate slowly. When the turntable (14) returns to the return end, the cam follower (47) of the first lock mechanism (40) enters the first V-groove (38) formed in the cam (37) to mechanically turn the turntable (14). And stop dog (2
7) kicks the rotation return end stop limit switch (24) to stop the drive motor (15). After the stop, the notch cylinder (46) of the first lock mechanism (40) is shortened to lower the notch (45), and the cam follower (47) is released from the first V groove (38).

The above-mentioned direction changing device is provided with a turntable (1).
At the time of the rotation of 4), the drive motor (15) is reduced by the inverter control by the rotation control device (23) by the inverter control just before each stop position, and the rotation is stopped after the rotation speed of the turntable (14) is reduced. There is little impact when stopping,
There is no displacement of the door (1).

In the above embodiment, the turntable (1)
4) is stopped at 105 degrees and 180 degrees. However, the mounting positions of the stop limit switch and the deceleration limit switch and the mounting positions of the stop dog and the deceleration dog for kicking them are changed. It can be stopped at any position by attaching the second lock mechanism or changing the formation positions of the first and second V-grooves of the cam. By increasing or decreasing the number of these installations, it is possible to perform a fine stop.

[0032]

According to the present invention, when a work is carried into the undulating table, the turntable is rotated, the rotation control means is stopped at a predetermined rotation angle, and the turntable is mechanically stopped by the stop means. Then, the work is erected by erecting the undulating table. In this way, the work can be rotated and erected by the rotation of the turntable and the erecting operation of the undulating table with one device. Therefore, if this direction changing device is applied to a door assembly line, one direction changing device can change the direction and erect the door, reduce the number of steps, and greatly reduce the length of the front, rear, left and right of the equipment. .

If a drive motor is provided on the side of the turntable and the turntable is belt-driven by the drive motor, the turntable can be rotated at an arbitrary angle, and the height of the entire turntable can be reduced. As a result, the entire device can be reduced in size, and the area occupied by the entire device can be extremely reduced.

If a timing belt containing a high-strength steel core wire is used to transmit the driving force, unstable rotation and noise due to elongation due to elongation can be prevented, and no refueling is required. It is also advantageous in terms of aspects.

[Brief description of the drawings]

FIG. 1 is a side view of a direction change device according to the present invention.

FIG. 2 is a sectional view showing a drive mechanism of a turntable of the direction changing device according to the present invention.

FIG. 3 is a plan view showing a rotation control unit of the direction changing device according to the present invention;

FIG. 4 is a sectional view showing a lock mechanism of the direction changing device according to the present invention.

FIG. 5 is a plan view showing a lock mechanism of the direction changing device according to the present invention.

FIG. 6 is a plan view showing an undulating device of the direction changing device according to the present invention.

FIG. 7 is a schematic diagram showing an installation example of a direction changing device according to the present invention.

FIG. 8 is a schematic view showing an installation example of a conventional direction changing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Base frame 13 Rotation axis 14 Turntable 15 Drive motor 22 Rotation drive means 23 Rotation control means 36 Stopping means 55 Up / down table 56 Up / down cylinder

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-246013 (JP, A) JP-A-62-283258 (JP, A) Fully open 48-8881 (JP, U) Fully open Showa 63- 31027 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B65G 47/80 B65G 47/22-47/32

Claims (3)

(57) [Claims] 1. Transport of a car door (1) that has been carried in
Change direction and distribute to multiple lines (B) (C) and carry out
A direction changing device, and a turntable which is rotatably supported on the base frame (10) (14), said base frame
On the floor (10) and beside the turntable (14).
Drive motor (1) for belt driving the turntable (14)
5) a rotation driving means (22) having
And rotation control means for stopping said detected rotation driving means (22) the rotation angle of 4) (23), below the turntable (14)
Mechanically split the turntable (14) at a predetermined angle.
Stop means (36) for taking out and holding, and the turntable
(14) The car as a work that is provided on the upper surface so that it can be raised and lowered
A relief table that undulations door (1) (55), the direction conversion device and a relief means (56) for raising and lowering the undulations table (55). 2. Transport of the car door (1) that has been carried in.
Change direction and distribute to multiple lines (B) (C) and carry out
Direction changing device, rotatable on the base frame (10)
Turntable (14) supported by the base frame
On the floor (10) and beside the turntable (14).
Drive motor (1) for belt driving the turntable (14)
5) a rotation driving means (22) having
4) Detect the rotation angle and stop the rotation drive means (22).
Rotation control means (23), below the turntable (14).
Mechanically split the turntable (14) at a predetermined angle.
Stop means (36) for taking out and holding, and the turntable
(14) The car as a work that is provided on the upper surface so that it can be raised and lowered
An undulating table (55) for raising and lowering the door (1),
An undulating means (56) for raising and lowering a table (55), and the undulating table (55) carries the door (1) into the horizontal portion (55a).
Conveyors (61) and (62) for
The loading con- troller is inserted into the vertical part (55b) formed at one end of the horizontal part (55a).
An unloader that unloads the door (1) in the same direction as the bears (61) and (62)
Attach the bear (65), and at the other end of the horizontal portion (55b)
Set the fall prevention bar (71) via the bracket (70)
Between the loading conveyors (61) and (62) and the fall prevention bar (71).
A work direction change device configured to allow the door (1) to enter. 3. The unloading conveyor (65) is a roller conveyor.
Then, the carry-out conveyor (65) is swung and tilted, and the
The door (1) on the unloading conveyor (65) is unloaded by its own weight.
3. The direction changing device for a workpiece according to claim 2, wherein the direction is changed.