JPH06572B2 - Shuttle type carrier - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer device suitable for use in a vehicle assembly transfer line and the like, and particularly to a transfer device for a vehicle, etc., by a shuttle frame that is reciprocally driven with a required stroke. The present invention relates to a shuttle-type transfer device configured to transfer an object.

[Conventional technology]

Conventionally, as a shuttle type transfer device used for an assembly transfer line of a vehicle, there is a lift & carry type device as shown in FIGS. 15 (a) to 15 (f).

That is, the shuttle frame 02 is provided below the work step 01 as the floor and is provided with the rollers 0 on the plurality of supports 03.
It is supported by 3a and is arranged so as to be reciprocally driven in the horizontal direction.

A rack 02a is formed on a part of the lower surface of the shuttle frame 02 over the required length.
A carry gear 05 rotationally driven by the carry drive motor 04 is engaged with 2a. This gear 05
The shuttle frame 02 is reciprocally driven with a required stroke by rotationally driving the drive motor 04.

Further, the support base 03 and the carry drive motor 04 are
Each is supported by a base 07 on a base 06 via columns 08. The column 08 has its upper end fixed to the lower surface of each support base 03 or the drive motor 04, while its lower end is held by the base 07 so as to be vertically movable. Further, a rack 08a is formed on one side surface of each of the columns 08, and a lift gear 010 rotatably driven by a lift drive motor 09 meshes with the rack 08a.

Then, the respective gears 010 are synchronized by the respective drive motors 09 and are rotationally driven all at once, so that the support base 0 is supported via the support columns 08.
3 and the carry drive motor 04 are driven up and down at a required height, whereby the entire shuttle frame 02 is driven up and down at a required height.

On the other hand, on the base 06, a pair of front and rear support members 011 and 011 are provided for each work station at predetermined intervals in the assembly line.
Are assembled and arranged so that their upper ends project above the work step 01. These supports 011 and 011 are
A vehicle 012 as an object to be transported is placed on the upper end thereof.

Further, the shuttle frame 02 is also provided with a plurality of pairs of front and rear bearing-supporting objects 013, 013, which are assembled at predetermined intervals of the workstation. The upper ends of these receiving members 013 and 013 are attached to the upper surface of the work platform 01 and the supporting member at the lowest position (retracted position) of the shuttle frame 02.
It is located between the upper end of 011 and the uppermost position (transport position) of the shuttle frame 02 and above the upper end of the support tool 011.

It should be noted that the work platform 01 is formed with a guide groove (not shown) that allows passage of each receiving tool 013.

At the conventional shuttle type transfer position as described above, the vehicle 012 as the transferred object is transferred as follows.

First, as shown in FIG. 15 (a), in a state in which the vehicle 012 is placed on the supports 011 and 011 of each workstation (at this time, the shuttle frame 02 and the receiver 013 are at the lowest position), After the receivers 013 and 013 are arranged below each vehicle 012, the lift drive motor 09 drives the lift gears 010 to rotate in unison, and as shown in FIG. The platform 03 and the carry drive motor 04 are raised to drive the shuttle frame 02 and the receiving member 013 to the maximum raised position. This allows
The vehicle 012 is placed on the receiving tools 013 and 013 from the supporting tools 011 and 011.

In this state, the carry drive motor 04 rotationally drives the carry gear 05 to drive the vehicle 012 together with the shuttle frame 02 and a plurality of sets of receivers 013 and 013 in the forward direction [Fig. 15 (c)). (a) to (f) to the left], and the vehicle 012 and the receivers 013 and 013 are moved to the position shown in FIG.
As shown in (d), when the next workstation is reached, the rotation of the drive motor 04 is stopped.

Next, the lift drive motor 09 drives the lift gear 01
0 is simultaneously driven to rotate in the opposite direction to the above-described ascending drive, and as shown in FIG. 15 (e), each supporting base 03 and carry drive motor 04 are lowered through the support column 08,
The shuttle frame 02 and the receiver 013 are driven to descend from the highest position to the lowest position.

As a result, the vehicle 012 is transported to the workstation one ahead and is placed on the supports 011 and 011 of the receiving stations 013 and 013.

After that, the carry drive motor 04 rotationally drives the carry gear 05 in a direction opposite to that in the forward drive, so that the shuttle frame 02 and the receiving member 013 are moved as shown in FIG. 15 (f). Retreat with the lowest position,
It returns to the state shown in FIG.

In this way, the shuttle frame 02 and the plurality of sets of receivers 013 and 013 are reciprocally driven (carry) at a required interval (workstation spacing) and vertically moved (lifted) at a required height. By combining and circulating driving, the vehicle 012 as the transported object is
It is sequentially transported to the workstation one ahead.

[Problems to be solved by the invention]

However, in the conventional shuttle type transfer device as described above, when the shuttle frame 02 and the receiver 013 are driven backward, the upper end of the receiver 013 protrudes above the work step 01 as shown in FIG. 15 (f). As it retreats as it is, there is a risk of causing a contact accident between the worker and the receiving tool 013. Therefore, for safety of work, the worker cannot enter the vicinity of the transport device on the work step 01 at the time of the backward drive, and the efficiency of the work along the assembly transport line is reduced.

Therefore, the height of the work step 01 from the base 06 is increased or the lift amounts of the shuttle frame 02 and the receiving tool 013 are increased so that the receiving tool 013 moves below the work step 01 when the shuttle frame 02 moves backward. Although it may be considered to pass through, in this case, a support member (not shown) for supporting the work step 01 or the shuttle frame 0
In order to secure the structural strength of the support base 03, the support column 08, the base base 07, etc. that support the 2, a large amount of cost is required.

Further, since the conventional shuttle type transfer device adopts the lift & carry type, it has a large weight such as the shuttle frame 02, a plurality of sets of receiving members 013, 013 and a plurality of vehicles 012.
It is difficult to secure the structural strength of the device, and the drive mode for carry 0
4 also has to be lifted and lowered together with the shuttle frame 02 and the like, which causes a problem that the structure of the apparatus becomes extremely complicated.

The present invention is intended to solve these problems,
The transfer work can be performed without lifting and lowering the shuttle frame, and when the shuttle frame is retracted, the receiver is placed below the floor, simplifying the structure and improving the work efficiency along the transfer line. It is an object of the present invention to provide a shuttle-type transfer device which is easy to use.

[Means for solving problems]

For this reason, the first invention (described in claim 1) is a shuttle frame that is reciprocally driven with a required stroke below the floor, and a carrier for receiving the transported object mounted on the shuttle frame. The receiving tool selects the standing posture of the transported object to support the transported object above the floor and the posture of the lying unsupported transported object located below the floor. So that
It is characterized in that it is configured to be capable of being tilted up and down in the driving direction of the shuttle frame with respect to the shuttle frame, and that a guide groove is formed in the floor to allow passage of the standing upright receiver.

A second invention (described in claim 2) is a shuttle frame that is reciprocally driven under a floor with a required stroke, and a receiver for supporting a transported object attached to the shuttle frame. And the receiver is
On the shuttle frame, it is possible to selectively take a standing posture of the transported object to support the transported object above the floor and a lying posture of the unsupported transported object located below the floor. On the other hand, in the one in which the guide groove for allowing the passage of the standing receiver is formed on the floor while being configured to be capable of raising and lowering in the driving direction of the shuttle frame, the raising and lowering drive mechanism for the receiver is The raising / lowering drive mechanism is provided in a fixed portion below the floor near the shuttle frame so as to be connected to the receiver when the shuttle frame is stopped.

Further, a third invention (described in claim 3) is a shuttle frame that is reciprocally driven under a floor with a required stroke, and an object for supporting a transported object attached to the shuttle frame. In addition, the receiving device selectively selects a standing posture of the transported object to support the transported object above the floor and a posture of supporting the transported object that is lying below the floor and not supported. So that
The shuttle frame is constructed so that it can be tilted up and down in the driving direction of the shuttle frame, and a guide groove is formed on the floor to allow passage of the upright receiver. A tilting drive mechanism is provided so as to be movable in a direction orthogonal to the driving direction of the shuttle frame, engages with a lock plate described later, and locks the tilting drive position for driving the receiver to tilt through the lock plate. Stop of the shuttle frame at a fixed portion below the floor near the shuttle frame, which is provided with a drive guide member that is disengaged from the plate and stops at a non-tilting drive position separated from the lock plate. It is sometimes provided so as to be connected to the receiver, and can be locked to the shuttle frame in a state where the receiver is erected. A lock mechanism is provided between the receiver and the shuttle frame, and the lock mechanism is attached to the shuttle frame via a rotating member so as to be rotatable integrally with the receiver. A lock position movably disposed on the shuttle frame and facing the lock plate to engage the lock plate to lock the lock plate and an unlock position to release the engagement with the lock plate. A drive guide member for the tilt drive mechanism for moving the lock pin between the lock position and the unlock position by interlocking with the movement of the movable lock pin and the drive guide member for the tilt drive mechanism. And a linkage connecting member provided between the lock pin and the lock pin.

[Action]

In the shuttle type transfer device according to the first aspect of the invention,
The object for receiving the object to be conveyed supports the object to be conveyed in an upright posture for supporting the object to be conveyed and moves the object to be conveyed at a predetermined position while passing through a guide groove formed on the floor by horizontal movement of the shuttle frame. Transport to. In addition, after the transfer of the transferred object, the receiving member is laid down in a non-supported attitude of the transferred object located below the floor, and passes through the lower side of the floor together with the shuttle frame in the horizontal movement direction described above. Is driven in the opposite direction.

In the shuttle-type transfer device according to the second aspect of the present invention, the transferred object support receiver supports the transferred object in an upright transferred object supporting posture and is formed on the floor by horizontal movement of the shuttle frame. The transported object is transported to a predetermined position while passing through the guide groove. Further, after the transfer of the transferred object, the receiving device is laid down in a non-supported attitude of the transferred object located below the floor by one of the raising and lowering drive mechanisms provided in the fixed portion. And is driven with the shuttle frame under the floor in the direction opposite to the horizontal movement direction. Then, the receiving member is again erected to the transferred object supporting posture by the other erection driving mechanism of the two sets.

Further, in the shuttle-type transfer device according to the third aspect of the invention, the object for receiving the object to be transferred is locked by the lock mechanism with respect to the shuttle frame in the upright position to support the object to be transferred, and in this state the object to be transferred is Then, the transported object is transported to a predetermined position while passing through the guide groove formed on the floor by the horizontal movement of the shuttle frame. Further, after the transfer of the transferred object, the receiving device is laid down in a non-supported attitude of the transferred object located below the floor by one of the raising and lowering drive mechanisms provided in the fixed portion. To be done. When the receiver shifts to the fall position, the lock mechanism is interlocked with the raising and lowering drive mechanism, and the locked state of the receiver with respect to the shuttle frame is released. Thereafter, the receiving member is driven together with the shuttle frame below the floor in a direction opposite to the horizontal movement direction described above, and then by the other tilting drive mechanism of the two sets,
It is again driven to stand up in the supported posture of the transported object, and is locked to the shuttle frame by the lock mechanism.

〔Example〕

A shuttle type transfer device as an embodiment of the present invention will be described below with reference to the drawings. Fig. 1 (a) is a front view showing a supported posture of an object to be transferred, and Fig. 1 (b) is a front view thereof. FIG. 2 is a front view showing the non-supported posture of the object to be transported, FIG. 2 is a side view showing the overall configuration of the transport line to which the present device is applied, FIG. 3 is a plan view of the transport line, and FIG. FIG. 5 is a side view showing an enlarged view of a workstation as a fixed part of the line and an arrangement state of the apparatus in the workstation, FIG. 5 is a plan view of the workstation and the apparatus corresponding to FIG. 4, and FIG. FIG. 7 is a vertical cross-sectional view showing a mounting state of the receiving member on the shuttle frame (cross-sectional view taken along the line VI-VI in FIG. 7), FIG. 7 is a cross-sectional view taken along the line VII-VII in FIG.
The figure is a front view showing the receiving member (transported object support posture) and the locking mechanism (locked state) in a partially cutaway manner. FIG. 9 is a view taken in the direction of arrow IX in FIG. 8, and FIG. FIG. 1 is a front view of the unlocked state corresponding to FIG.
FIG. 1 is a plan view showing a tilting drive mechanism for the receiver,
FIG. 12 is a sectional view taken along the line XII-XII in FIG. 11, FIG. 13 is a view taken along the line XIII-XIII in FIG. 11, and FIGS. It is a typical side view for explaining a transportation procedure of a vehicle.

Also in this embodiment, a case in which a vehicle such as an automobile is used as the object to be transferred and the shuttle type transfer device of the present invention is applied to an assembly transfer line of the vehicle will be described.

As shown in FIGS. 1 to 8, below the work step 1 as the floor (between the work step 1 and the base 8), a pair of left and right shuttle frames 2 and 2 connected by a shuttle frame stay 4 are provided. The plurality of support bases 3 are supported by rollers 3a and are arranged so as to be reciprocally driven in the horizontal direction.

As shown in FIGS. 2 and 3, the shuttle frame stay 4 is provided with a rack member 5 in parallel with the shuttle frame 2 over a required length. The rack of the rack member 5 has a drive motor 6 for carrying. The carry gear 7, which is driven to rotate by, meshes with it. By rotating the gear 7 by the drive motor 6, the shuttle frame 2 is reciprocally driven with a required stroke.

On the other hand, on the base 8, as shown in FIGS. 2 and 3, a plurality (3 in FIG.
A workstation W of the base) is arranged. In each workstation W, as shown in FIGS. 2 to 5, a fixed support tool 9 and a movable support tool 10 capable of supporting a vehicle 11 as an object to be transported are provided in a pair of left and right, front and rear 2 respectively.
A total of four sets are erected so that their upper ends protrude above the work step 1. Movable support 10
Is configured such that the support portion 10a at the upper end thereof can be vertically driven by a hydraulic cylinder b, and the vehicle 11 supported by the support portion 10a can be vertically driven.

Further, in the present embodiment, the shuttle frame 2 is provided with a pair of front and rear bearing-supporting members 12, 12 in conformity with a predetermined interval of the workstation W.

As shown in FIGS. 1 (a), (b) and FIG. 8, each receiving member 12 has a T shape, and the lower end of the vertical member 12a thereof is pivotally supported by the shuttle frame stay 4. Rotating member 1
3 and is attached to the shuttle frame 2 via the rotating member 13 and the shuttle frame stay 4.

As a result, the receiving tool 12 is rotatable with the rotating member 13 about the horizontal axis in the longitudinal direction of the rotating member 13, and supports the vehicle 11 above the work step 1 and the fixed support tool 9. Standing posture of the transported object [Fig. 1
(a) and FIG. 8] and the tilted position with respect to the shuttle frame 2 so that it can take a lying posture of the transported object positioned below the work step 1 [see FIG. 1 (b)]. It is configured to be possible.

Further, as shown in FIG. 1 (a), the receiving tool 12 can support the vehicle 11 through the jig 12c on the horizontal member 12b of the transferred object in a supported posture, and the work can be performed. The step 1 is formed with a guide groove 1a that allows the vertical member 12a of the upright receiver 12 to pass through.

The work step 1 at the position of each workstation W is formed with an opening (not shown) that allows upright movement or falling movement of the receiving tool 12, and the guide groove 1a is formed so as to connect the respective openings to each other. Are formed.

Further, as shown in FIGS. 1 to 8, the pair of front and rear receivers 12, 12 are linked and linked by an interlocking shaft 14 via respective rotating members 13, 13 so that the standing motion or the fall motion can be performed in conjunction with each other. It has become so.

By the way, in the vicinity of the shuttle frame 2, each workstation W as a fixed portion below the work step 1
As shown in FIGS. 4 and 5, a tilting drive mechanism M for the receiver 12 is provided so as to be connected to the front (left side in the drawing) receiver 12.

In addition, as shown in FIGS. 1 (a), (b) and FIG. 8, a locking mechanism L capable of locking the receiving frame 12 with respect to the shuttle frame 2 in a standing state and a lying state, respectively.
Is provided on the shuttle frame stay 4 between the front receiving member 12 and the shuttle frame 2.

The tilting drive mechanism M includes an air cylinder 15 provided on a slide plate 19, as shown in FIGS.
The guide bar 16, the sliding member 17, and the drive guide groove member 18 are included.

That is, the air cylinder 15 and the pair of upper and lower guide bars 16 and 16 are arranged on the slide plate 19 along the transport direction of the vehicle 11 (hereinafter, referred to as the front-rear direction), and the guide bars 16 and 16 respectively. A pair of upper and lower sliding members 17, 17 are externally fitted, and these sliding members 17, 17 are connected to a telescopic end 15a of the air cylinder 15, and the air cylinder 15 moves forward and backward along the guide bars 16, 16. It is designed to be driven in the direction (arrow P ₁ , P ₂ direction in FIG. 11).

In addition, the sliding guides 17, 17 include a drive guide groove member 18
Is attached.

Further, the slide plate 19 includes a pair of rails 20,
The air cylinder 21 is mounted on the work station W and fixed to the work station W, and is connected to a telescopic end 21a.
With this air cylinder 21, the slide plate 19
Is driven in a direction orthogonal to the front-rear direction (hereinafter referred to as a lateral direction) along the rails 20 and 20, and the entire tilting drive mechanism M along with the slide plate 19 is a lateral direction (first direction).
It is designed to be driven in the directions of arrows Q ₁ and Q _{2 in} FIG.

On the other hand, the lock mechanism L is composed of a lock plate 22 and a lock pin 25, as shown in FIGS.

The lock plate 22 is fixed to the rotating member 13 and can rotate integrally with the rotating member 13 and the receiving member 12.

Further, a driving roller follower 24 that can be fitted into the driving guide groove member 18 of the tilting drive mechanism M is pivotally attached to the lock plate 22 via a roller pin 23, and the receiving tool 12 is raised. The lock hole 2 that can be engaged with the tip portion 25a of the lock pin 25 when standing up to be locked.
6 and a lock hole 27 that can be engaged with the tip portion 25a of the lock pin 25 at the time of fall to lock the fall state of the receiving tool 12.
And are formed.

Then, as shown in FIG. 6, these roller followers 24 and lock holes 26, 27 are
, The lock holes 26 and 27 are arranged on the same circumference around the rotation axis of the rotating member 13, and the lock holes 26 and 27 are arranged at an angle of 90 ° with respect to the rotation center of the rotating member 13. The follower 24 is arranged in the middle of the lock holes 26 and 27, that is, at an angle of 45 ° with each of the lock holes 26 and 27.

As shown in FIGS. 8 and 10, the lock pin 25 is held by a lock pin housing 29 mounted on the shuttle frame stay 4 via a mounting plate 28 and sandwiches the lock plate 22 directly below the rotating member 13. It is arranged so as to face the drive guide groove member 18. This lock pin 25 is a lock pin housing 29.
Is held so as to be slidable in the lateral direction, and further, the lock hole 26 or 27 is locked by the coil spring 30 fitted around the lock pin 25 in the lock pin housing 29.
It is urged in a direction (leftward in FIGS. 8 and 10) that engages with the front end portion 25a.

A guide bracket 31 is attached to the base end portion 25b of the lock pin 25 outside the lock pin housing 29, and a guide roller 32 is pivotally attached to the lower surface of the guide bracket 31 so as to be rotatable around a vertical axis. On the other hand, as shown in FIGS. 8 and 9, a guide roller 33 is pivotally mounted on the upper surface of the guide bracket 31 so as to be guided in lateral movement by a guide plate 34 fixed to the mounting plate 28. There is.

Further, a slide plate 35 is placed on the other end side on the pair of rails 20, 20 on which the guide plate 19 is placed on one end side.
It is connected to the slide plate 19 by a pair of joint bars 37. In addition, the slide plate 35
A guide plate 36 is fixed on the upper side, and the guide roller 32 is attached to the guide plate 36.
The guide plates 36 are guided in the front-rear direction and engaged when the work stations 2 and 12 stop at predetermined positions.

As a result, the tilting drive mechanism M and the lock mechanism L form the joint bar 37, the slide plate 35, the guide plate 36, the guide roller 32, and the guide bracket 31.
It is connected through.

Next, each operation of the tilting drive mechanism M and the lock mechanism L,
The linking operation between the tilt drive mechanism M and the lock mechanism L will be described.

When the drive guide groove member 18 of the up-and-down drive mechanism M is at the positions indicated by reference numerals A and D in FIG. 11 (positions shown in FIGS. 8 and 13), the lock mechanism L has a tip portion of its lock pin 25. 25a is engaged with the lock hole 26 or 27, and the receiving member 1
The shuttle frames 2 are locked in a state in which 2 and 12 are erected or fallen down. In particular, the receivers 12, 12
When the roller follower 24 of the lock plate 22 is in a position facing the guide groove member 18 at the position A when the predetermined position is stopped at the workstation W of the receiving tool 12,
When the roller follower 24 is in a standing posture to support the transported object and the roller follower 24 is in a position facing the guide groove member 18 at the position D, the receiving members 12 and 12 are in the lying posture of the transported object not to be supported.

Then, when the receiving tools 12, 12 are stopped at a predetermined position in the workstation W, the guide groove member 18 is moved from the positions A, D in FIG.
Driving in _one direction (to the right in FIGS. 8 and 13), the positions shown by symbols B and S in FIG. 11 (positions shown in FIG. 10), respectively
When the guide groove member 18 is moved to, the guide groove member 18 is fitted into the roller follower 24 of the lock plate 22, whereby the tilting drive mechanism M passes through the roller follower 24, the lock plate 22, and the rotating member 13. Front receiver 12
Is connected to.

At the same time, the driving force of the air cylinder 21 is increased by the joint bar 37, the slide plate 35, and the guide plate 3.
6, transmitted to the lock pin 25 of the lock mechanism L via the guide roller 32 and the guide bracket 31, and the lock pin 25 is driven in opposition to the biasing force of the coil spring 30 as shown in FIG. . Therefore, the tip portion 25a of the lock pin 25 and the lock hole 26 or 27
The engagement state with and is released, and the locked state of the receivers 12 and 12 with respect to the shuttle frame 2 is released.

In this manner, with the guide groove member 18 and the roller follower 24 fitted and the receiving members 12, 12 unlocked, the guide groove member 18 is first moved by the air cylinder 15.
When moving from position B to position C in FIG. 1 (direction of arrow Q ₁ ), the roller follower 24 moves up and down along the guide groove member 18, and in the direction of arrow R _{1 of} FIG. The member 13 rotates 90 °, and the front receiving member 12 shifts from the standing state to the lying state.
At this time, the rotation of the rotating member 13 on the front side is caused by the interlocking shaft 1
It is transmitted to the rear rotation member 13 via 4 and the rear receiver 12 also shifts from the upright state to the upright state.

On the other hand, in a similar state, when the guide groove member 18 is moved from the position C in FIG. 11 to the position B (direction of arrow Q ₂ ) by the air cylinder 15, the lock plate 22 and the rotating member 13 are moved through the roller follower 24. Rotates 90 ° in the direction of arrow R _{2 in} FIG. 6, and the receivers 12, 12 shift from the lying state to the standing state.

The lock hole 27 or 26 is positioned in the biasing direction of the coil spring 30 of the lock pin 25, and after the above-described falling movement or standing movement of the receiving members 12 and 12, the air cylinder is moved. When the tilt drive mechanism M is driven in the direction of arrow P _{2 in} FIG.
A lock state is established in which a is engaged with the lock hole 27 or 26.

The reference numeral 38 in FIGS. 8 and 10 designates the slide plate 35.
1 shows a rail cover attached to the rail 20 and covering the rails 20.

Reference numerals 39 in FIGS. 6 and 7 denote stopper members attached to the shuttle frame stay 4, the receiving member 12 and the lock plate 22, respectively. The stopper members 39 include the receiving member 12, the rotating member 13 and the lock member. The rotation range of the plate 22 is regulated within 90 ° (between the standing state and the lying state).

The shuttle type transporting apparatus as one embodiment of the present invention is configured as described above, and the raising / lowering drive mechanism M and the lock mechanism L of the receiving member 12 are configured so as to be able to perform the above-mentioned respective operations and linking operations. Therefore, the vehicle 11 as the transported object is transported as follows.

First, as shown in FIG. 14 (a), a state in which the vehicle 11 is placed on the fixed support tool 9 of each workstation W [at this time, the receiving tool 12 falls down as shown in FIG. 1 (b)]. In this state, the shuttle frame 2 and the receiver 12 are arranged at predetermined positions of the workstations W. In this position, the receiving tool 12 is arranged below the vehicle 11, the guide roller 32 is engaged with the guide plate 36 on the workstation W, and the up-and-down drive mechanism M and the lock mechanism L are linked and connected. .

Then, as shown in FIG. 14 (b), the support portion 10a of the movable support tool 10 is driven upward by the hydraulic cylinder 10b,
The vehicle 1 is pushed upward from above the fixed support 9 and the support 1 is provided.
Support on 0a. In this state, the air cylinder 21 drives the guide groove member 18 from position D to position C in FIG. 11 to fit the roller follower 24 into the guide groove member 18, and at the same time, the joint bar 37, the guide plate 36, The lock pin 25 is driven via the guide roller 32 or the like to release the engagement between the lock pin 25 and the lock hole 27.

Then, the air cylinder 15 drives the guide groove member 18 from the position C to the position B in FIG. 11, and as shown in FIG. 14 (c), the pair of front and rear receivers 12, 12 are laid down all at once. Move from the non-bearing posture to the standing posture of the transported object. At this time, the upper ends (jigs 12c) of the receiving members 12, 12 are arranged between the upper ends of the fixed supporting members 9 and the supporting portions 10a of the movable supporting members 10.

After the receivers 12 and 12 are raised, the air cylinder 21
The guide groove member 18 from position B to position A in FIG.
The lock pins 25 and the lock holes 26 are engaged with each other to lock the receivers 12 and 12 with respect to the shuttle frame 2 in an upright posture of supporting the transported object.

Thereafter, as shown in FIG. 14 (d), the support portion 10a of the movable support tool 10 is driven downward by the hydraulic cylinder 10b,
The vehicle 11 is placed and supported on the receivers 12 and 12 from the support portion 10a.

In this state, the gear 7 is rotationally driven by the carry drive motor 6, and the vehicle 11 is horizontally moved in the forward direction together with the shuttle frame 2 and the receivers 12 and 12 as shown in FIGS. 14 (d) and 14 (e). Let At this time, the receivers 12, 12 are
As shown in FIG. 1 (a), in the vertical member 12a,
It passes through the guide groove 1a formed in the work step 1.

Then, as shown in FIG. 14 (f), when the vehicle 11 and the receivers 12, 12 reach a predetermined position in the workstation W one ahead, the rotation of the drive motor 6 is stopped, and the shuttle frame is stopped. Stop the movement of 2. At this time, the guide roller 32 is engaged with the guide plate 36, and the up-and-down drive mechanism M and the lock mechanism L are linked and connected.

Next, as shown in FIGS. 14 (f) and 14 (g), the movable support 10
The supporting portion 10a is driven upward by the hydraulic cylinder 10b, and the vehicle 11 is pushed upward from above the receivers 12, 12 and supported on the supporting portion 10a. In this state, the air cylinder 21 drives the guide groove member 18 from position A to position B in FIG.
At the same time when 4 is fitted, the lock pin 25 is driven through the joint bar 37 or the like to release the engagement state between the lock pin 25 and the lock hole 26.

Thereafter, the air cylinder 15 drives the guide groove member 18 from the position B to the position C in FIG. 11, and as shown in FIG. 14 (h), the pair of front and rear receivers 12, 12 are erected at the same time. Move from the supported posture of the transported object to the non-supported posture of the transported object.

After the receivers 12 and 12 are laid down, the air cylinder 21
The guide groove member 18 from position C to position D in FIG.
The lock pin 25 and the lock hole 27 are engaged with each other to lock the receivers 12 and 12 with respect to the shuttle frame 2 in a posture in which the conveyed objects are not supported.

At the same time, as shown in FIG. 14 (i), the supporting portion 10a of the movable supporting member 10 is driven downward by the hydraulic cylinder 10b, and the vehicle 11 is placed on the fixed supporting member 9 from above the supporting portion 10a. .

In this way, the vehicle 11 is transported to the workstation W one ahead.

After that, the drive motor 6 rotationally drives the gear 7 in the direction opposite to the direction in which the forward drive is performed to retract the shuttle frame 2 and the receiving members 12 and 12, and FIG.
Return to the state shown in.

At this time, since the receiving members 12, 12 are in the laid-down state, as shown in FIG. 1 (b), they pass below the work platform 1 without projecting onto the work platform 1.

As described above, in the present embodiment, the shuttle frame 2 and the plurality of sets of receivers 12, 12 are reciprocally driven at a required interval (interval between the workstations W, W), and the receivers 12, 12. In combination with the operation of raising and lowering by driving up and down by the raising and lowering drive mechanism M arranged for each workstation W, the vehicle 11 as an object to be conveyed is sequentially conveyed to the workstation W one ahead. Being done.

Further, in this embodiment, when the shuttle frame 2 and the receivers 12 and 12 are driven backward, the receivers 12 and 12 pass below the work step 1, so that a contact accident between the worker and the receiver 12 is prevented. It can be prevented from occurring. Therefore, the worker can enter the vicinity of the transfer position on the work step 1 during the backward drive, and the work efficiency along the assembly transfer line can be significantly improved.

Furthermore, the shuttle frame 2, which has a large weight as in the past, a plurality of sets of receiving members 12, 12 and a plurality of vehicles 11
Need not be driven up and down, and since the raising and lowering drive mechanism M of the receivers 12 and 12 is provided on the workstation W side as a fixed part, the structure of the device becomes considerably simpler than the conventional one. There are also advantages.

Further, the receivers 12 and 12 are securely fixed by the lock mechanism L in each of the upright posture of the transported object-supporting posture and the lying-down posture of the transported object-not-supporting posture. Further, since the lock mechanism L is designed to operate in cooperation with the tilting drive mechanism M, it is not necessary to provide a special drive portion for the lock mechanism L, and the structure of the device is prevented from becoming complicated. You can do it.

It should be noted that in the above embodiment, the object to be conveyed is the vehicle 11 and the case where the present apparatus is applied to the assembly and conveying line for the vehicle 11 is explained, but the object to be conveyed is not limited to the vehicle 11. The device is applied in a similar manner to the above for a conveyor line for various articles.

Further, in the above-described embodiment, the receiving members 12 and 12 are configured to be locked by the lock mechanism L in any of the upright carried object supporting posture and the collapsed carried object non-supporting posture. You may make it lock only when.

〔The invention's effect〕

As described above in detail, according to the shuttle type transfer device of the first aspect of the invention, the shuttle frame that is reciprocally driven under the floor with a required stroke, and the received object for supporting the transported object attached to the shuttle frame. The receiving tool selects the standing posture of the transported object to support the transported object above the floor and the posture of the lying unsupported transported object located below the floor. As a result, a simple structure in which a guide groove is formed in the floor so that the shuttle frame can be tilted up and down in the driving direction of the shuttle frame, and a guide groove that allows the upright receiver to pass is formed. Now, the transfer work can be performed without lifting and lowering the shuttle frame, and the structure of the device is much simpler than before, and when the shuttle frame is retracted. Since the receptacle to pass through the floor side,
Work efficiency along the transfer line can be significantly improved.

Further, according to the shuttle type transfer device of the second invention,
The shuttle frame includes a shuttle frame that is reciprocally driven at a required stroke below the floor, and a receiver for supporting a transported object attached to the shuttle frame, and the receiver is configured to move the transported object above the floor. The shuttle frame can be moved up and down in the drive direction of the shuttle frame so that it can selectively take a standing posture for supporting the conveyed object and a posture for supporting the conveyed object below the floor. And a guide groove for allowing passage of the standing upright receiving member is formed on the floor, an up and down driving mechanism for the upcoming receiving device is provided, and the up and down driving mechanism comprises: With a simple configuration in which a fixed portion below the floor near the shuttle frame is provided so as to be connected to the receiving member when the shuttle frame is stopped, In addition to the same effect as the first aspect of the invention, since the tilting drive mechanism for the receiver is provided on the fixed part side, the structure on the shuttle frame side that is reciprocally driven does not become complicated. It is also possible to prevent the weight of the entire shuttle frame from increasing.

Further, according to the shuttle type transfer device of the third invention, the shuttle type transfer device is provided with a shuttle frame which is reciprocally driven at a required stroke below the floor, and an object for receiving an object to be transferred which is attached to the shuttle frame. The receiver is
On the shuttle frame, it is possible to selectively take a standing posture of the transported object to support the transported object above the floor and a lying posture of the unsupported transported object located below the floor. On the other hand, in the one in which the guide groove for allowing the passage of the standing receiver is formed on the floor while being configured to be capable of raising and lowering in the driving direction of the shuttle frame, the raising and lowering drive mechanism for the receiver is , A relationship between a tilting drive position that is provided so as to be movable in a direction orthogonal to the driving direction of the shuttle frame and that engages with a lock plate to be described later and tilts and drives the receiving member via the lock plate, and the lock plate. A fixing portion below the floor near the shuttle frame, which is provided with a drive guide member that stops at a non-tilting drive position separated from the lock plate. , A lock mechanism that is provided so as to be connected to the receiver when the shuttle frame is stopped, and that can lock the shuttle frame with the receiver upright is provided between the receiver and the shuttle frame. The lock mechanism is provided on the shuttle frame and is rotatably attached to the shuttle frame integrally with the receiver via a rotating member. The lock mechanism is movable to the shuttle frame and faces the lock plate. And a lock pin that engages with the lock plate and is movable between a lock position for locking the lock plate and an unlock position for releasing the engagement with the lock plate, and a drive guide for the tilting drive mechanism. The tilt drive unit for moving the lock pin to the lock position and the unlock position in association with the movement of the member. In addition to the same effects as the first and second inventions, a simple structure in which the driving guide member and the linking connection member interposed between the lock pin and the lock pin are provided. Since the receiving member in the upright posture for supporting the transported object is fixed by the lock mechanism, the transported object can be reliably supported. Further, since the lock mechanism is linked to the up-and-down drive mechanism, it is not necessary to provide a special drive portion for the lock mechanism, and there is an advantage that the structure of the device can be prevented from becoming complicated.

[Brief description of drawings]

1 to 14 show a shuttle type transfer device as an embodiment of the present invention, and FIG. 1 (a) is a front view showing a transferred object support posture of its receiver, and FIG. 1 (b). Is a front view showing a non-supported posture of the receiving object of the receiving device, FIG. 2 is a side view showing an overall configuration of a transfer line to which the present apparatus is applied, FIG. 3 is a plan view of the transfer line, and FIG. FIG. 5 is a side view showing, in an enlarged manner, a work station as a fixed portion of the above-mentioned transfer line and an arrangement state of the present apparatus in the work station.
FIG. 6 is a plan view of the workstation and the apparatus corresponding to FIG. 4, and FIG. 6 is a vertical cross-sectional view showing a mounting state of the receiving member on the shuttle frame (a cross-sectional view taken along the line VI-VI in FIG. 7), FIG. 7 is a sectional view taken along the line VII-VII in FIG. 6, and FIG. 8 is a front view showing the receiving member (transported object supporting posture) and the locking mechanism (locked state) partially broken away, and FIG. 8 is a view taken in the direction of arrow IX in FIG. 8, FIG. 10 is a partially cutaway front view showing the unlocked state of the lock mechanism corresponding to FIG. 8, and FIG. 11 is a tilting drive for the receiver. Plan view showing the mechanism, first
2 is a sectional view taken along the line XII-XII in FIG. 11, and FIG.
XIII-XIII arrow view of Figure 1, Figure 14 (a) ~ (i) is a schematic side view for explaining the procedure of transporting the vehicle as the transported object by this device, Figure 15 ( (a)-(f) is a typical side view for demonstrating the conveyance procedure of the to-be-conveyed object by the conventional shuttle type conveyance apparatus. 1 ・ ・ Work step as a floor, 1a ・ ・ Guide groove, 2 ・ ・ Shuttle frame, 3 ・ ・ Supporting base, 3a ・ ・ Roller, 4 ・ ・ Shuttle frame stay, 5 ・ ・ Rack member, 6 ・ ・ For carry Drive motor, 7 ... Carry gear, 8 ... Base, 9 ... Fixed support tool, 10 ... Movable support tool, 10a ... Support part, 10a ... Hydraulic cylinder, 11 ... Vehicle as transferred object , 12 ・ ・ Receiver for supporting transported object, 12a ・ ・ Vertical member, 12b ・ ・ Horizontal member, 12c ・ ・ Jig, 13 ・ ・ Rotating member, 14 ・ ・ Interlocking shaft, 15 ・ ・ Air cylinder, 15a ..Expanding end, 12..Guide bar, 17 ... Sliding member, 18 ... Drive guide groove member, 19 ... Guide plate, 20 ... Rail, 21 ... Air cylinder, 21a ... Expanding end , 22 ・ ・ Lock plate, 23 ・ ・ Low Pins, 24 · · Roller followers, 25 · · Lock pins, 25a · · Lock pin tips, 25b · · Lock pin base ends, 26, 27 · · Lock holes, 28 · · Mounting plate, 29 · · Lock pin housing, 30, coil spring, 31, guide bracket, 32, 33, guide roller, 34, guide plate, 35, slide plate, 36, guide plate, 37, joint bar, 38.・ Work station as rail cover, 39 ・ ・ stopper member, L ・ ・ lock mechanism, M ・ ・ tilt drive mechanism, W ・ ・ fixing part.

Continuation of the front page (56) Reference JP-A-60-2514 (JP, A) JP-A-57-33108 (JP, A) JP-A-49-96468 (JP, A) JP-A-58-152705 (JP , A) JP 57-1104 (JP, A) Actually opened 61-196882 (JP, U) Actually opened 60-172640 (JP, U)

Claims (3)

[Claims] 1. A shuttle frame, which is reciprocally driven at a required stroke below the floor, and a receiver for supporting an object to be conveyed, which is attached to the shuttle frame. Driving the shuttle frame with respect to the shuttle frame so that it can selectively take a standing posture for supporting the transported object supported above the floor and a posture for supporting the transported transported object below the floor. A shuttle-type transfer device, which is configured to be erected in a direction and has a guide groove formed in the floor that allows passage of the standing receiver. 2. A shuttle frame, which is reciprocally driven at a required stroke below the floor, and a carrier for supporting an object to be conveyed, which is attached to the shuttle frame. Driving the shuttle frame with respect to the shuttle frame so that it can selectively take a standing posture for supporting the transported object supported above the floor and a posture for supporting the transported transported object below the floor. A guide groove for allowing passage of the upright receiver is formed in the floor, and a hoisting drive mechanism for the upholstery is provided for An inversion drive mechanism is provided in a fixed portion below the floor near the shuttle frame so as to be connected to the receiver when the shuttle frame is stopped. To, the shuttle type conveying device. 3. A shuttle frame, which is reciprocally driven with a required stroke below the floor, and a receiver for supporting an object to be conveyed, which is attached to the shuttle frame. Driving the shuttle frame with respect to the shuttle frame so that it can selectively take a standing posture for supporting the transported object supported above the floor and a posture for supporting the transported transported object below the floor. A guide groove for allowing passage of the standing upright is formed on the floor while being configured to be upright in a direction, and a upright upright drive mechanism for the upright,
Engagement between the lock plate and a tilting drive position that is provided so as to be movable in a direction orthogonal to the driving direction of the shuttle frame and that engages with a lock plate to be described later and tilts and drives the receiver through the lock plate. The guide member for driving which is disengaged from the lock plate and stops at a non-tilting drive position is provided at a fixed portion below the floor in the vicinity of the shuttle frame, and when the shuttle frame is stopped, the receiver is provided. A lock mechanism that is provided so as to be connected and that can lock the shuttle frame in a state where the receiver is erected is provided between the receiver and the shuttle frame, and the lock mechanism includes the shuttle frame. A lock plate rotatably mounted integrally with the receiving member via a rotating member, and the shuttle frame. A lock pin that is movably disposed opposite to the lock plate and that can move between a lock position that engages with the lock plate and locks the lock plate and an unlock position that releases the engagement with the lock plate; A drive guide member of the tilt drive mechanism and the lock pin for moving the lock pin to the lock position and the unlock position in association with the movement of the drive guide member of the tilt drive mechanism. A shuttle-type transfer device, comprising a linking connection member interposed therebetween.