JP7028691B2 - Pallet transfer device - Google Patents

Description

The present invention relates to a pallet transfer device using a transfer pallet on which a work is mounted and transferred.

Conventionally, in a production line, there is a transfer device in which a work is conveyed by a conveyor and a machine to be conveyed performs a predetermined process on the work. Then, the present applicant has proposed a pallet transfer device capable of easily changing the transfer pitch of the pallet on which such a work is mounted (see, for example, Patent Document 1).

This transport device includes a transport pallet configured to mount a work, a guide rail on which the pallet is movably mounted, and a belt that is provided endlessly along the guide rail and becomes a moving body by circulating. By locking the pallet to the circulating belt, the pallet is configured to be conveyed along the guide rail, and it is expected that the conveying speed and positioning accuracy of the work will be improved.

Japanese Unexamined Patent Publication No. 2011-189998

Here, in the conventional pallet transport device, in order to lock the pallet to the belt which is a moving body, unevenness extending in the width direction is alternately and continuously formed in the belt in the longitudinal direction, and the unevenness is engaged with the unevenness. Unevenness is formed on the pallet. For this reason, when transferring the transport pallet to a guide rail provided with such a belt, the speed and position of the belt are synchronized with the pallet so that the unevenness of the pallet engages with the unevenness of the belt. It was necessary to take and operate it.

When transferring the transport pallet from the guide rail on the transport side to the guide rail on the return side, the transport pallet that has come out from the end of the guide rail on the transport side is moved to the end of the guide rail on the return side. The speed and position of the belt provided along the guide rail on the return side are operated in synchronization with the pallet so that the unevenness of the pallet engages with the unevenness of the belt. Had to be sent to the guide rail on the return side.

However, it is relatively difficult to synchronize the movement of the pallet with the rotation speed of the belt to engage the unevenness with the unevenness as described above, and it is relatively difficult to install the pallet transfer device and actually use the pallet transfer device. There was a problem that the adjustment work before starting operation became relatively long.

On the other hand, when a plurality of transport pallets are mounted on the same guide rail, the unevenness of the pallets engages with the unevenness of the belt in the mounted state, so that between the plurality of transport pallets in the same transport path. There was also the inconvenience of not being able to change the pitch.

An object of the present invention is to provide a pallet transport device using a transport pallet that can be easily engaged with and disengaged from a moving body.

Another object of the present invention is to provide a pallet transfer device using a transfer pallet that can be easily transferred to different guide rails.

Yet another object of the present invention is to provide a pallet transfer device using a transfer pallet that can easily change the pitch while mounted on a guide rail.

In the present invention, a transport pallet having a linear motion block, a pedestal to which the linear motion block is attached, and a locking member provided on the pedestal, and a transport pallet are movably mounted via the linear motion block . A guide rail, a moving body that is movably provided along the guide rail and is configured so that the locking member of the transport pallet can be locked, and a moving body that is moved to lock the locking member to the moving body. Between the moving means for moving the transport pallet on the guide rail and the locking position where the locking member is locked to the moving body and the detaching position where the locking member is separated from the moving body. A moving mechanism that reciprocates the locking member, an operation actuator that can operate the moving mechanism of the transport pallet to move the locking member to the disengaged position, and a transport pallet in which the locking member is disengaged in the longitudinal direction of the guide rail. It is a pallet transfer device provided with a longitudinal actuator to move to.

The moving body in this pallet transfer device is a belt in which irregularities extending in the width direction are alternately and continuously formed in the longitudinal direction, and irregularities engaged with the irregularities are formed on the locking member and conveyed to the guide rail. With the pallet mounted, the unevenness of the locking member at the locking position engages with the unevenness of the belt, and the unevenness of the locking member at the detaching position is configured to separate from the unevenness of the belt. preferable.

Further, the moving mechanism of the transport pallet extends in the width direction orthogonal to the guide rail, and is provided with an operation piece that moves in the width direction to move the locking member, and the operation actuator appears and disappears from the housing to operate the operation piece. It has a haunting rod that can come into contact with the end, and the pedestal of the transport pallet is provided with a holding piece that sandwiches the operating end of the operating piece from the front and back in the longitudinal direction of the guide rail. It is also possible to configure the operation actuator in which the rod is sandwiched to move in the longitudinal direction of the guide rail together with the transport pallet.

Further, when a plurality of guide rails for movably mounting the transport pallets are continuously provided in the longitudinal direction, the operation actuator and the longitudinal actuator are provided at the joint portion of the guide rails, and the locking member of the longitudinal actuator is disengaged. It is preferable that the position transport pallet is configured to move from one guide rail to another guide rail continuous with one guide rail.

On the other hand, when a pair of guide rails on which the transport pallets are movably mounted are provided in parallel with each other at a predetermined interval in the horizontal direction, a short rail on which the transport pallets can be mounted and a short rail are mounted on one of the guide rails. It is equipped with a widthwise actuator that moves between a continuous first position and a second position that is continuous with the other guide rail, so that the widthwise actuator also moves the operating and longitudinal actuators along with the short rail. The longitudinal actuator can also be configured such that the locking member moves the transport pallet in the detached position from one or the other guide rail to the short rail or from the short rail to one or the other guide rail. ..

Since the transport pallet of the present invention is provided with a moving mechanism for moving the locking member, in the pallet transporting device and the pallet transporting method using this transport pallet, the locking member can be easily moved with the moving body. It is possible to engage and easily disengage the engagement. Then, when the moving pallet is locked to the moving body provided along the guide rail, the transport pallet can be transported along the guide rail, and conversely, when the locking member is separated from the moving body, the moving pallet is moved. Can be easily stopped.

Further, when the locking member is separated from the moving body, it is possible to move independently of the moving body. Therefore, by moving the transport pallet separated from the moving body by the locking member separately from the moving table, it can be easily transferred to different guide rails, and a plurality of transport pallets are mounted on the guide rails. If so, the spacing between the transport pallets can be easily changed.

It is a front view which shows the pallet transfer apparatus of embodiment of this invention. It is a top view of the transport pallet as seen from the direction C of FIG. FIG. 3 is a cross-sectional view taken along the line AA of FIG. It is sectional drawing corresponding to FIG. 3 which shows the state which the locking member is raised and separated from a moving body. FIG. 8 is a cross-sectional view taken along the line BB of FIG. 8 showing the means of transportation. It is a top view which shows the pallet transfer apparatus. It is a top view which shows the state which the transport pallet reached the end of one guide rail in the pallet transport device. It is a top view corresponding to FIG. 7 which shows the state in which the transport pallet is moved from the end of one guide rail to a short rail and mounted. FIG. 8 is a top view corresponding to FIG. 8 showing a state in which a short rail on which a transport pallet is mounted has moved from a position continuous with one guide rail to a position continuous with another guide rail. It is a top view corresponding to FIG. 9 which shows the state which the transport pallet moved from a short rail to another guide rail. It is a front view which shows the other pallet transfer apparatus of this invention embodiment. It is a top view which looked at the other transport pallet from the D direction of FIG. It is a top view corresponding to FIG. 12 which shows the state which the transport pallet moved from one guide rail to another guide rail continuous with it in the other pallet transport device. 11 is a cross-sectional view taken along the line EE of FIG. It is sectional drawing corresponding to FIG. 14 which shows the state which the locking member is raised by the operation actuator of the other pallet transporting apparatus, and is separated from a moving body. It is a top view of still another pallet transfer device in which the pallet moving means is provided in the middle of the guide rail.

Next, the best mode for carrying out the present invention will be described with reference to the drawings.

As shown in FIGS. 1 to 3, the transport pallet 11 in the present invention has a linear motion block 12 configured to be movable on the linear motion guide rail 23 across the linear motion guide rail 23 and its linear motion. The block 12 has a pedestal 13 to which the block 12 is screwed, and a locking member 14 provided on the pedestal 13 via a moving mechanism 15.

The linear motion block 12 is commercially available as a pair with the linear motion guide rail 23, and preferably includes a roller retainer (not shown). By using the linear motion block 12 provided with the roller retainer, movement of the linear motion guide rail 23 in the width direction and tilting of the linear motion guide rail 23 on which the linear motion block 12 is mounted are prohibited, and the linear motion block 12 is prohibited. The transfer pallet 11 having the above can significantly reduce the resistance to move on the linear motion guide rail 23.

The locking member 14 is superposed on the moving body and engages with the moving body, and although will be described later, the moving body in this embodiment shows a case where the belt 32 is used. Therefore, the locking member 14 engages with and engages with the moving belt 32 by superimposing on the moving belt 32, and the movement of the belt 32 causes the transport pallet 11 to move linearly. It will be moved while being mounted on the guide rail 23.

As the belt 32 in this embodiment, as shown in the enlarged view of FIG. 1, a belt in which unevennesses 32a and 32b extending in the width direction are alternately continuous in the longitudinal direction is used, and the belt 32 is superposed on the belt 32. In order to lock, it is assumed that the locking member 14 is formed with unevenness 14a, 14b that can be engaged with the unevenness 32a, 32b.

As shown in FIGS. 2 and 3, in this embodiment, the linear motion block 12 is attached to the lower part of the pedestal 13, and the locking member 14 is a guide rail at the lower part of the pedestal 13 sandwiching the linear motion block 12. The case where it is provided on both sides in the width direction (Y-axis direction) orthogonal to 23 is shown.

The moving mechanism 15 has a locking position in which the locking members 14 provided on both sides of the lower portion of the pedestal 13 overlap with the belt 32, which is a moving body provided on both sides of the guide rail 23, as shown in FIG. And, as shown in FIG. 4, the belt 32 is reciprocated between the moving body and the detached position separated from the belt 32, which is a moving body.

Specifically, as shown in FIG. 3, the moving mechanism 15 in this embodiment penetrates both sides of the pedestal 13 so as to sandwich the linear motion block 12 provided in the lower center of the horizontal pedestal 13. A pair of support rods 16 and 16 provided so as to be movable up and down in the vertical direction are provided. A locking member 14 is provided at the lower ends of the pair of support rods 16 and 16 provided on both sides of the pedestal 13, and a connecting member 17 is erected at the upper ends of the pair of support rods 16 and 16. To.

As shown in FIGS. 1 to 3, a cam plate 18 is provided on the upper surface of the pedestal 13 so as to be reciprocally movable in the horizontal direction (Y-axis direction) orthogonal to the linear motion guide rail 23 straddling the linear motion block 12. Specifically, a rail 19 extending in the horizontal direction (Y-axis direction) orthogonal to the linear motion guide rail 23 is provided on the upper surface of the pedestal 13, and a linear motion block 20 movable on the rail 19 is provided on the cam plate 18. Can be installed. The rail 19 and the linear motion block 20 ensure smooth movement of the cam plate 18.

The cam plate 18 is provided between the pedestal 13 and the connecting member 17, and the connecting member 17 located above the cam plate 18 is provided with a roller 17a that rolls on the upper surface of the cam plate 18. Then, as shown in FIG. 3, a V-shaped lower portion 18a for positioning the connecting member 17 at a lower position is formed on the upper surface of the cam plate 18 together with the roller 17a, and the lower portion 18a is formed on both sides of the lower portion 18a. A V-shaped inclined surface 18b is formed in which the portion 18a is smoothly connected to the upper surface of the cam plate 18.

As shown in FIG. 1, a coil spring 21 is interposed between the pedestal 13 and the locking member 14, and the locking member 14 is configured to be separated from the pedestal 13 by the urging force of the coil spring 21. .. Therefore, in the connecting member 17 connected to the locking member 14 via the pair of support rods 16 and 16 by the urging force of the coil spring 21, the roller 17a comes into contact with the lower portion 18a, and the connecting member 17 is lowered. The locking member 14 is configured to be positioned at the locking position where the locking member 14 overlaps with the belt 32.

On the contrary, as shown in FIG. 4, when the cam plate 18 is moved in the longitudinal direction against the urging force of the coil spring 21 from this state, the roller 17a rolls the inclined surface 18b from the lower portion 18a. Along with the rising and rising rollers 17a, the connecting member 17 also rises, and the locking member 14 connected to the connecting member 17 via the pair of support rods 16 and 16 is raised from the locking position where the belt 32 is overlapped. It is configured to be raised to the detached position.

As described above, the cam plate 18 provided on the upper surface of the pedestal 13 extends in the direction orthogonal to the guide rail 23 (Y-axis direction), and the locking member 14 is moved up and down by the movement in the longitudinal direction thereof. The locking member 14 serves as an operation piece for raising and lowering, and the pedestal 13 has an end portion of the cam plate 18 which is the operation piece protruding from the pedestal 13 in the longitudinal direction of the linear motion guide rail 23 in the traveling direction. A holding piece 26 to be sandwiched from the above is provided before and after the holding piece 26.

Further, the pedestal 13 is provided with a covering member 22 that covers the cam plate 18 from above, and a mounting tool 24 for mounting the work is further provided on the upper surface of the covering member 22. The mounting tool 24 mounts a work (not shown), and the structure of the mounting tool 24 is appropriately changed and used depending on the type of work to be mounted on the pallet 11 and processed.

Next, a pallet transfer device including the transfer pallet will be described.

1 to 6 show the pallet transfer device 28 in the present invention. In each figure, it is assumed that three axes of X, Y, and Z orthogonal to each other are set, the X axis extends in a substantially horizontal horizontal direction, the Y axis extends in a substantially horizontal anteroposterior direction, and the Z axis extends in a vertical direction. The configuration will be described.

The pallet transport device 28 circulates and transports a transport pallet 11 equipped with a work (not shown), and transports the transport pallet 11 in front of machines 1 to 4 (FIG. 6) provided along the transport path. This is a circulation type pallet transfer device 28 used in the case where the machines 1 to 4 are used to process a work (not shown) mounted on the transfer pallet 11.

Note that FIG. 6 shows a case where four machine tools 1 to 4 are provided on both sides of the pallet transfer device 28 of the present invention, but this is an example, and the number of the machine tools 1 to 4 is processed. The number of transport pallets 11 varies depending on the required workpiece, and the number of transport pallets 11 is appropriately increased or decreased according to the number of machine tools 1 to 4.

In order to circulate the transport pallet 11, the pallet transport device 28 in this embodiment includes the transport pallet 11 described above and a plurality of linear motion guide rails 23 on which the transport pallet 11 is movably mounted. The linear motion guide rails 23 extend in the longitudinal direction (X-axis direction) and are provided in parallel with each other at predetermined intervals in the horizontal direction (Y-axis direction).

As shown in detail in FIG. 3, a support plate 29 is directly fixed and provided on the gantry 9 along a transport path (X-axis direction), and a linear motion guide rail 23 is screwed on the upper edge of the support plate 29. It is fixed by a stop. As shown in FIG. 6, the support plate 29 and the linear motion guide rails 23 attached to the upper edges thereof form the first and second pallet rails 30 and 40 parallel to each other, and the first and second pallets are formed. The rails 30 and 40 are for mounting the transport pallet 11 so as to be movable in a horizontal state.

As the linear motion guide rails 23 provided on the first and second pallet rails 30 and 40, those on which the linear motion block 12 provided on the transport pallet 11 can be mounted are used, and the linear motion guide rails 23 are mounted on the pedestal 13 of the transport pallet 11. By supporting the fixed linear motion block 12 so as to be movable across the linear motion guide rails 23 in the first and second pallet rails 30 and 40, the transport pallet 11 is in a horizontal state and the first and second pallets 11 are in a horizontal state. It will be movably mounted on the two pallet rails 30 and 40.

As shown in FIG. 6, the pallet transport device 28 in the present embodiment includes a first pallet feed means 31 for transporting the transport pallet 11 mounted on the first pallet rail 30 along the first pallet rail 30. The second pallet feeding means 41 for transporting the transporting pallet 11 mounted on the second pallet rail 40 along the second pallet rail 40 is provided.

The first pallet feeding means 31 and the second pallet feeding means 41 have the same structure, and the first pallet feeding means 31 will be described below as a representative.

As shown in FIGS. 1 to 3, the first pallet feeding means 31 is configured to be engageable with the transport pallet 11, and is provided on both sides of the first pallet rail 30 along the first pallet rail 30. It is provided with a circulation belt 32 that circulates and becomes a moving body, and a moving means 33 (FIG. 1) that moves the circulation belt 32 so as to circulate.

That is, as shown in FIG. 1, driven pulleys 34 are provided on both sides of the support plate 29 in the first pallet rail 30, and the circulation belt 32 surrounds these four driven pulleys 34. , Are hung on both sides of the support plate 29, respectively.

A drive shaft 35a is pivotally supported on the support plate 29, and drive pulleys 35 of the same shape and size are attached to both sides of the drive shaft 35a penetrating the support plate 29.

On the other hand, the gantry 9 is provided with a servomotor 33 which is a moving means for circulating and moving the circulation belt 32, and a drive shaft 35a is connected to the rotating shaft 33a (FIG. 3). The drive pulley 35 is provided on the same surface as the four driven pulleys 34 on both sides of the support plate 29, and the circulation belt 32 is provided in the vicinity of the drive pulley 35 so as to hang the circulation belt 32 around the drive pulley 35. A pair of turning pulleys 36 are pivotally supported on both sides of the support plate 29.

When the servomotor 33 is driven by a command from a controller (not shown), the drive pulleys 35 on both sides of the support plate 29 rotate at the same time, and the circulation belts 32 are hung around the drive pulleys 35 and exist on both sides of the support plate 29. Is configured to circulate at the same speed while surrounding the four driven pulleys 34.

The circulation belts 32 on both sides of the support plate 29 are so-called toothed belts 32. As shown in the enlarged view of FIG. 1, the circulation belt 32 is a belt 32 in which irregularities 32a and 32b extending in the width direction are alternately continuous in the longitudinal direction, and the irregularities 32a and 32b can be engaged with the irregularities 32a and 32b. 14a and 14b are formed on the locking member 14 provided on the pedestal 13 of the transport pallet 11 via the moving mechanism 15.

The unevenness 14a and 14b of the locking member 14 are configured to engage with the unevenness 32a and 32b of the circulation belt 32. That is, when the locking member 14 is polymerized on the circulation belt 32 at the locking position, the unevenness 14a and 14b formed on the locking member 14 engage with the unevenness 32a and 32b formed on the circulation belt 32. The transport pallet 11 independent of the circulation belt 32 is configured to be prohibited from moving in the X-axis direction. As a result, when the servomotor 33 is driven to circulate the circulation belt 32 with which the transport pallet 11 is engaged, the transport pallet 11 moves together with the circulation belt 32, and the first and second circulation belts 32 follow. (2) The transport pallet 11 is transported along the pallet rails 30 and 40.

Here, reference numeral 37 in FIG. 1 is a support member 37 for preventing the circulation belt 32 between the driven pulleys 34 from loosening and preventing the circulation belt 32 from separating from the locking member 14, and reference numeral 38 is a reference numeral 38. A fixture 38 for attaching the support member 37 to the support plate 29 is shown.

As shown in FIGS. 1 and 6, pallet moving means 61 are provided at both ends of the first and second pallet rails 30 and 40, respectively. The pallet moving means 61 provided at both ends has a symmetrical structure with the first and second pallet rails 30 and 40 in between, and is mounted on either the first or second pallet rail 30 or 40. The transferred transport pallet 11 is moved to the other pallet rail.

In this embodiment in which the first and second pallet rails 30 and 40 are provided in parallel with each other, the transport pallet 11 mounted on the first pallet rail 30 is moved to the second pallet rail 40. The case where the transport pallet 11 mounted on the second pallet rail 40 is moved to the first pallet rail 30 is applicable.

Therefore, the pallet moving means 61 has a short rail 62 on which the transport pallet 11 can be mounted, a first position in which the short rail 62 is continuous with the first pallet rail 30, and a second position in which the short rail 62 is continuous with the second pallet rail 40. A widthwise actuator 63 is provided for moving between and.

As the short rail 62, the same one as the linear motion guide rail 23 in the first and second pallet rails 30 and 40 is used, and the length W (FIG. 6) of the short rail 62 is the X axis of the transport pallet 11. It is formed to be the same as or longer than the length L in the direction (FIG. 6).

As shown in FIG. 5, the short rail 62 in this embodiment is mounted on the upper edge of the short support plate 64 which is erected on the base 65 and provided in parallel with the first and second pallet rails 30 and 40. The case where it is possible is shown.

The width direction actuator 63 reciprocates the short rail 62 between the first position and the second position together with the base 65, and the width direction actuator 63 is a servomotor 63a (FIGS. 6 to 10). A ball screw 63b that is rotationally driven by the ball screw 63b and a slave 63c that is screwed into and translates to the ball screw 63b are provided, and the housing 63d is movable on the gantry 9 via a support column 63e so that the actuator 63c can move in the Y-axis direction. It extends in the Y-axis direction and is attached.

The widthwise actuator 63 is provided with a mover 63c that moves in the longitudinal direction of the housing 63d on the upper surface of the housing 63d. Then, the base 65 is attached to the follower 63c.

Therefore, the slave 63c moves together with the base 65, and as shown in FIGS. 7 and 8, the short rail 62 provided on the upper surface of the base 65 is the first or second pallet rail 30, 40. When continuous with the linear motion guide rail 23, the short rail 62 is mounted on the transport pallet 11 moved from the linear motion guide rail 23 in the first and second pallet rails 30 and 40, or is mounted on the short rail 62. The mounted transport pallets 11 are configured to be movable on their linear motion guide rails 23.

Further, a longitudinal actuator 66 and an operation actuator 67 are provided on the base 65 provided with the short rail 62. The longitudinal actuator 66 has the same structure as the Y-axis actuator 63, and is attached to the base 65 with the housing 66d parallel to the short rail 62 via the support 66e.

The operation actuator 67 is a fluid pressure cylinder that causes the infestation rod 67a to appear and disappear from the housing 67b by fluid pressure, and is a slave of the longitudinal actuator 66 so that the infestation rod 67a is parallel to the cam plate 18 of the transport pallet 11. It is attached to 66c via a fixture 67c.

As shown in FIGS. 7 and 10, the longitudinal actuator 66 is the end portion of the first or second pallet rail 30 or 40 when its driven element 66c moves toward the first or second pallet rail 30 or 40. The haunting rod 67a of the operating actuator 67 is continuously connected to the cam plate 18 of the transport pallet 11 mounted on the above, and as shown in FIGS. 8 and 9, the follower 66c thereof is connected to the first or second pallet rail 30 or 40. When moving in the distant direction, the haunting rod 67a of the operation actuator 67 is configured to be continuous with the cam plate 18 of the transport pallet 11 mounted on the short rail 62.

Therefore, in a state where the transport pallet 11 mounted on the first or second pallet rail 30 or 40 reaches the end of the first or second pallet rail 30 or 40, the longitudinal actuator 66 is moved. When the slave 66c is moved to the first or second pallet rail 30 or 40 side, the haunting rod 67a of the operation actuator 67 is continuously connected to the cam plate 18 of the transport pallet 11, and as shown in FIG. 4, the haunting rod 67a is haunted. When the rod 67a is projected from the housing 67b, the cam plate 18 is configured to move in the longitudinal direction after coming into contact with the end portion of the cam plate 18 which is the operation piece thereof.

When the cam plate 18 moves in the longitudinal direction thereof, the roller 17a in the lower portion 18a of the cam plate 18 climbs the inclined surface 18b from the lower portion 18a, and the connecting member 17 also rises together with the rising roller 17a to form the coil spring 21. Against the urging force, the locking member 14 connected to the connecting member 17 via the support rod 16 is raised to the disengagement position raised from the locking position.

In this way, the locking member 14 that has risen to the disengagement position is separated from the belt 32, and its engagement is disengaged, and the transport pallet 11 is independently the belt 32 and the first or second pallet rail. It will be movable along 30 or 40.

However, the transport pallet 11 is provided with a holding piece 26 for sandwiching the cam plate 18 as an operation piece, and the haunting rod 67a of the operation actuator 67 in which the cam plate 18 is pushed is held by the holding piece 26. become. Therefore, even if the locking member 14 is separated from the belt 32, free movement of the transport pallet 11 independently of the operating actuator 67 is prohibited.

Therefore, as shown in FIGS. 7 and 10, the protruding shaft 67a of the operating actuator 67 facing the end of the cam plate 18 is projected, the cam plate 18 is moved, and the locking member 14 is separated from the belt 32. When the longitudinal actuator 66 moves the operation actuator 67 in a direction away from the first or second pallet rail 30 or 40 as shown in FIGS. 8 and 9, the transport pallet 11 is moved to the second position. It will be moved from the end of the first or second pallet rail 30 or 40 to the short rail 62.

On the other hand, the longitudinal actuator 66 moves the operation actuator 67 in a direction away from the first or second pallet rail 30 or 40, and as shown in FIGS. 8 and 9, the transport pallet 11 is a short rail. When the operating actuator 67 is moved to the first or second pallet rail 30 or 40 side while being mounted on the 62 and continuous with the first or second pallet rail 30 or 40, the haunting rod 67a of the operating actuator 67 is The transport pallet 11 sandwiched between the sandwich pieces 26 moves from the short rail 62 to the first or second pallet rail 30 or 40, as shown in FIGS. 7 and 10.

In this way, after the transport pallet 11 has moved to the first or second pallet rail 30 or 40, when the haunting rod 67a of the operating actuator 67 is immersed in the housing 67b, as shown in FIG. 3, the coil spring 21 Due to the urging force, the locking member 14 is separated from the pedestal 13 and overlaps with the belt 32 provided along the first or second pallet rail 30 or 40 and engages with the belt 32. Therefore, after that, by circulating the belt 32, the transport pallet 11 can be transported along the first or second pallet rail 30 or 40.

Next, the pallet transport method in the present invention using the transport pallet will be described.

The pallet transport method in the present invention is a pallet transport method in which the transport pallet 11 is mounted on a plurality of linear motion guide rails 23 and moved, and the transport pallet 11 is mounted on the linear motion guide rail 23 and the straight line thereof. The transport pallet 11 is moved by locking the locking member 14 to a moving body provided along the motion guide rail 23, in this embodiment, a belt 32 provided endlessly and circulating, and the moving body is used. It is characterized in that the locking member 14 is disengaged from a certain belt 32 and moved from one linear motion guide rail 23 to another linear motion guide rail 23.

In the pallet transfer device 28, since the first and second pallet rails 30 and 40 provided with the linear motion guide rails 23 are provided in parallel with each other at predetermined intervals in the horizontal direction, the pallet transfer device 28 is used. The pallet transport method used is the first pallet transport step of transporting the transport pallet 11 mounted on the first pallet rail 30 along the first pallet rail 30, and the transport method of reaching the end of the first pallet rail 30. The first pallet moving step of moving the pallet 11 to the second pallet rail 40, the second pallet transporting step of transporting the transporting pallet 11 mounted on the second pallet rail 40 along the second pallet rail 40, and the first (2) The method includes a second pallet moving step of moving the transport pallet 11 that has reached the end of the pallet rail 40 to the first pallet rail 30, thereby circulating the transport pallet 11.

In this embodiment, each process will be described below assuming that the transport pallet 11 circulates in a counterclockwise orbit in the top view in FIG.

<First pallet transfer process>
In this step, the transport pallet 11 mounted on the first pallet rail 30 is transported.

As shown in FIGS. 1 and 6, the transport pallet 11 in this embodiment is equipped with a work to be subjected to predetermined processing, and the transport pallet 11 mounted on the first guide rail 21 is mounted on the work. Further, since the transport pallet 11 includes a mounting tool 24 on which the work is mounted, the work is mounted on the transport pallet 11 via the mounting tool 24.

The transport pallet 11 is mounted on the first guide rail 21 by mounting the linear motion block 12 of the transport pallet 11 from the end of the linear motion guide rail 23 on the first guide rail 21.

Specifically, when the transport pallet 11 is mounted, the end portion of the cam plate 18 as the operation piece is pushed in the direction of the pedestal 13 to raise the locking member 14, and in this state, the linear motion block 12 is mounted. Is mounted from the end of the linear motion guide rail 23 on the first guide rail 21. After that, the push-in of the cam plate 18 is canceled, the connecting member 17 is positioned at a lower position by the urging force of the coil spring 21, and the locking member 14 is polymerized on the belt 32.

When the transport pallet 11 is mounted on the first guide rail 21 in this way, the unevenness 14a and 14b provided on the transport pallet 11 are provided along the first guide rail 21 as shown in the enlarged view of FIG. It will engage with the unevenness 32a and 32b of the circulation belt 32. Therefore, after that, by driving the servomotor 33, which is a drive mechanism, to circulate the circulation belt 32, it becomes possible to convey those transport pallets 11 along the first guide rail 21.

As shown in FIG. 6, this transfer is performed until the transfer pallet 11 faces each machine tool 1 and 2 provided along the first pallet rail 30, and the transfer pallet 11 is performed on each machine tool 1 and 2. The servomotor 33 is stopped in a state of facing the above, and the work mounted on the transport pallet 11 is processed by each of the machine tools 1 and 2. At this time, by transporting the plurality of transport pallets 11 at the same pitch as the pitch P of the machines 1 and 2, it is possible to perform machining by the plurality of machines 1 and 2 at the same time.

<First pallet moving process>
In this step, the transport pallet 11 that has reached the end of the first pallet rail 30 is moved to the second pallet rail 40. This movement is performed by the pallet moving means 61 provided at one end of the first and second pallet rails 30 and 40.

That is, in the first pallet feeding means 31, the servomotor 33 is stopped when the transport pallet 11 reaches the end of the first pallet rail 30. On the other hand, in the pallet moving means 61, as shown in FIG. 7, the servomotor 63a in the widthwise actuator 63 is driven to move the short rail 62 together with the slave 63c, and the short rail 62 is first. It is continuous with the linear motion guide rail 23 of the pallet rail 30.

In this state, the longitudinal actuator 66 in the pallet moving means 61 moves its driven element 66c toward the first pallet rail 30, and causes the infestation rod 67a of the operating actuator 67 to be continuously connected to the cam plate 18 of the transport pallet 11.

Then, as shown in FIG. 4, in the operation actuator 67, the haunting rod 67a is projected and brought into contact with the end of the cam plate 18 which is the operation piece in the transport pallet 11, and the cam plate is brought into contact with the end. Move 18 in the longitudinal direction. As a result, the locking member 14 in the transport pallet 11 is raised and separated from the belt 32.

As described above, since the transport pallet 11 of the present invention is provided with the moving mechanism 15 for moving the locking member 14, the locking member 14 is provided in the pallet transport device 28 and the pallet transport method using the transport pallet 11. Can be easily disengaged by simply moving the locking member 14 away from the belt 32, which is a moving body provided along the guide rail 23.

In the transport pallet 11 of the present invention, the pedestal 13 is provided with a holding piece 26 that sandwiches the operating end of the cam plate 18, which is an operating piece, from the front and back in the longitudinal direction of the guide rail 23. As the cam plate 18 rises, the haunting rod 67a of the operating actuator 67 that has pushed the cam plate 18 can be sandwiched between the sandwiching pieces 26 of the transport pallet 11, and the transport pallet 11 in which the locking member 14 is separated from the belt 32. It is possible to prohibit free movement.

Therefore, after that, as shown in FIG. 8, the longitudinal actuator 66 moves the operating actuator 67 facing the end of the cam plate 18 by moving the operating actuator 67 in a direction away from the first pallet rail 30. The transport pallet 11 in which the sandwiching piece 26 sandwiches the haunting rod 67a of the actuator 67 can be moved from the end of the first pallet rail 30 to the short rail 62.

After the transport pallet 11 is mounted on the short rail 62, the servomotor 63a of the widthwise actuator 63 in the pallet moving means 61 is driven again, and the short rail 62 on which the transport pallet 11 is mounted together with the slave 63c thereof. Is separated from the first position continuous with the first pallet rail 30, and as shown in FIG. 9, the short rail 62 is moved to the second position continuous with the linear motion guide rail 23 of the second pallet rail 40.

After the short rail 62 on which the transport pallet 11 is mounted is continuous with the linear motion guide rail 23 of the second pallet rail 40, the longitudinal actuator 66 in the pallet moving means 61 sets the operating actuator 67 as shown in FIG. When the moving pallet 11 is moved to the second pallet rail 40 side together with the transport pallet 11, the transport pallet 11 in which the haunting rod 67a of the operation actuator 67 is sandwiched between the sandwich pieces 26 is a straight line from the short rail 62 to the second pallet rail 40. It will move to the motion guide rail 23.

Then, after the transport pallet 11 is moved to the second pallet rail 40, as shown in FIG. 3, the haunting rod 67a of the operation actuator 67 is immersed in the housing 67b, and the locking member 14 is squeezed by the urging force of the coil spring 21. Is separated from the pedestal 13 and superposed on the belt 32 provided along the second pallet rail 40 and engaged with the belt 32.

As described above, in the transport pallet 11 of the present invention, since the moving mechanism 15 for moving the locking member 14 is provided, the moving body is provided along the guide rail 23 by moving the locking member 14. The locking member 14 can be easily engaged with the belt simply by superimposing the locking member 14 on the belt 32.

As a result, the transport pallet 11 moves from the end of the first pallet rail 30 to the end of the second pallet rail 40, but in the present invention, the locking member 14 is moved to the belt 32 which is a moving body. Since the transport pallet 11 is moved away from the pallet rail 40, it is moved to a different pallet rail 40 as compared with the conventional one that requires the speed and position of the belt to be operated in synchronization with the pallet during the movement. Can be easily transferred.

<Second pallet transfer process>
In this step, the transport pallet 11 mounted on the second pallet rail 40 is transported. In the first pallet moving step in the previous step, as shown in FIG. 10, the transport pallet 11 moved from the short rail 62 to the second pallet rail 40 moves to the end of the second pallet rail 40 and is along the end thereof. It will engage with the provided belt 32.

In this second pallet transfer step, the transfer pallet 11 mounted on the second pallet rail 40 is conveyed, so that the transfer pallet 11 is circulated along the belt 32 provided along the second pallet rail 40. Starts moving in the opposite direction from the end of the second pallet rail 40, and the transport pallet 11 can be transported along the second pallet rail 40.

As shown in FIG. 6, the transfer along the second pallet rail 40 is performed until the transfer pallet 11 faces each of the machine tools 3 and 4 provided along the second pallet rail 40 for transfer. The servomotor 33 is stopped while the pallet 11 faces the machine tools 3 and 4, and the workpiece mounted on the transport pallet 11 is processed by the machine tools 3 and 4.

<Second pallet moving process>
In this step, the transport pallet 11 that has reached the end of the second pallet rail 40 is moved to the first pallet rail 30. This movement is performed by the pallet moving means 61 provided at the other end of the first and second pallet rails 30 and 40. Since the specific moving procedure is the same as that of the first pallet moving step, the repeated description will be omitted.

As described above, by performing each of the above-mentioned steps once, it is possible to transport one transfer pallet 11 in a counterclockwise direction in a truck-shaped orbit.

Then, each time such a process is performed once, the machine tools 1 to 4 are operated in a state where the operation of the pallet transfer device 28 is stopped, and each work (not shown) mounted on each transfer pallet 11 is operated. On the other hand, various predetermined processes are performed in parallel. When each of the machine tools 1 to 4 is operated, the work is carried in and out of any of the transport pallets 11.

When a plurality of transport pallets 11 are mounted on the guide rail 23, the interval between the transport pallets 11 can be easily changed by shifting the transfer time of the transport pallets 11. Will be.

Next, another pallet transfer device including the transfer pallet will be described.

As shown in FIG. 11, in this other pallet transfer device 80, a plurality of pallet rails 30 and 40 provided with a linear motion guide rail 23 are continuously provided in the longitudinal direction. Since the pallet rails 30 and 40 and the pallet feeding means 31 and 41 have the same structure as those in the pallet transport device 28 described above, repeated description thereof will be omitted.

FIG. 11 shows a case where the first and second pallet rails 30 and 40 are continuously provided in the longitudinal direction, and the transport pallet 11 mounted on any one of the first and second pallet rails 30 and 40. The pallet moving means 81 for moving the pallet to the other is provided at the ends of the first and second pallet rails 30, 40, that is, at the connection points thereof.

As shown in FIGS. 11 to 15, the pallet moving means 81 provided at the joints of the first and second pallet rails 30 and 40 appears and disappears from the main body 82b and is a cam plate which is an operation piece of the transport pallet 11. The operation actuator 82 having the infestation rod 82a capable of contacting the end of the 18 and the operation actuator 82 in which the infestation rod 82a is sandwiched between the holding pieces 26 of the transport pallet 11 are the first and second pallet rails 30 and 40. A longitudinal actuator 83 is provided in which the locking member 14 is moved in the longitudinal direction to move the transport pallet 11 (FIG. 15) at the detached position from one pallet rail 30 or 40 to the other pallet rail 40 or 30.

The operation actuator 82 is a fluid pressure cylinder that causes the infestation rod 82a to appear and disappear from the housing 82b by fluid pressure, and is a slave of the longitudinal actuator 83 so that the infestation rod 82a is parallel to the cam plate 18 of the transport pallet 11. It is attached to the 83c via the fixture 82c.

The longitudinal actuator 83 reciprocates the operating actuator 82 in the longitudinal directions of the first and second pallet rails 30 and 40, and is screwed onto the ball screw 83b that is rotationally driven by the servomotor 83a and the ball screw 83b. It is provided with a slave 83c that moves in parallel, and the housing 83d is mounted on the gantry 9 with a support column 83e (FIGS. 14 and 15) so that the actuator 83c can move in the longitudinal direction of the first and second pallet rails 30 and 40. It is attached via.

Then, as shown in FIG. 12, when the actuator 83c moves to one end of the housing 83d, it reaches the end of one of the first and second pallet rails 30, 40. When the haunting rod 82a of the operating actuator 82 is continuous with the cam plate 18 of the mounted transport pallet 11 and the slave 83c moves to the other end of the housing 83d as shown in FIG. 13, the other pallet The haunting rod 82a of the operation actuator 82 is configured to be continuous with the cam plate 18 of the transport pallet 11 mounted on the end of the rail 40 or 30.

Therefore, in a state where the transport pallet 11 mounted on the first or second pallet rail 30 or 40 reaches the end of the first or second pallet rail 30 or 40, the longitudinal actuator 83 is moved. When the slave 83c is moved to the first or second pallet rail 30 or 40 side, the haunting rod 82a of the operation actuator 82 is continuously connected to the cam plate 18 of the transport pallet 11, and as shown in FIG. 12, the haunting rod 82a is haunted. When the rod 82a is projected from the housing 82b, as shown in FIG. 15, after the rod 82a comes into contact with the end of the cam plate 18 as the operation piece, the cam plate 18 is moved in the longitudinal direction to move the transport pallet 11 in the longitudinal direction. The locking member 14 in the above is raised to the disengagement position raised from the locking position.

In this way, the locking member 14 that has risen to the disengagement position is separated from the belt 32, and its engagement is disengaged, and the transport pallet 11 is independently the belt 32 and the first or second pallet rail. Although the transport pallet 11 can be moved along the 30 or 40, the transport pallet 11 is provided with a holding piece 26 that sandwiches the cam plate 18 as an operating piece, and the haunting rod 82a of the operating actuator 82 that has pushed the cam plate 18 into the transport pallet 11. Will be pinched by the pinching piece 26. Therefore, even if the locking member 14 is separated from the belt 32, free movement of the transport pallet 11 independently of the operating actuator 82 is prohibited.

Therefore, the operating actuator 82 is moved in the longitudinal direction with the cam plate 18 being moved and the locking member 14 separated from the belt 32 by projecting the haunting shaft 82a of the operating actuator 82 facing the end of the cam plate 18. When the actuator 83 is moved in the longitudinal direction of the first or second pallet rail 30 or 40, the transport pallet 11 is separated from the end of the first or second pallet rail 30 or 40 as shown in FIG. Will be moved to the second or first pallet rail 40 or 30 of.

In this way, after the transport pallet 11 has moved to another second or first pallet rail 40 or 30, when the haunting rod 82a of the operating actuator 82 is immersed in the housing 82b, as shown in FIG. 14, the coil spring Due to the urging force of 21, the locking member 14 is separated from the pedestal 13 and overlaps with the belt 32 provided along the first or second pallet rail 30 or 40 and engages with the belt 32. .. Therefore, after that, by circulating the belt 32, the transport pallet 11 can be transported along the first or second pallet rail 30 or 40.

A pallet transfer method in another pallet transfer device configured in this way will be described.

The pallet transport method in the other pallet transport device 80 is also a pallet transport method in which the transport pallet 11 is mounted on a plurality of linear motion guide rails 23 and moved, and the transport pallet 11 is a linear motion guide. The transport pallet 11 is mounted on the rail 23 and is provided along the linear motion guide rail 23, and in this embodiment, the locking member 14 is locked to the belt 32 which is provided endlessly and circulates. Is moved, the locking member 14 is disengaged from the moving body, the belt 32, and the linear motion guide rail 23 is moved from one linear motion guide rail 23 to the other linear motion guide rail 23.

However, in this other pallet transfer device 80, since a plurality of pallet rails 30 and 40 are continuously provided in the longitudinal direction, the pallet transfer method using this other pallet transfer device 80 is one pallet rail. The first pallet transporting step of transporting the transport pallet 11 mounted on the 30 along the first pallet rail 30, and the transport pallet 11 reaching the end of the first pallet rail 30 are transferred to the first pallet rail 30. The pallet moving step of moving from the first pallet rail 30 to another second pallet rail 40 continuous with the first pallet rail 30, and the transport pallet 11 moved to the other second pallet rail 40 are along the second pallet rail 40. The second pallet transporting step of transporting is included.

Each process is described in detail below.

<First pallet transfer process>
In this step, the transport pallet 11 mounted on the first pallet rail 30 is transported along the first pallet rail 30. That is, as shown in FIG. 14, the first pallet rail 30 is mounted on the transport pallet 11, and the locking member 14 in the transport pallet 11 is polymerized on the belt 32 provided along the first pallet rail 30. , The unevenness 14a, 14b formed on the locking member 14 is locked to the unevenness 32a, 32b of the belt 32.

Then, by driving the servomotor 33 (FIG. 11) in the first pallet feeding means 31 to circulate the belt 32, the transport pallet 11 having the locking member 14 locked to the belt 32 is transferred to the first pallet. It is conveyed along one pallet rail 30.

<Pallet moving process>
In this step, the transport pallet 11 that has reached the end of the first pallet rail 30 is moved from the first pallet rail 30 to another second pallet rail 40 that is continuous with the first pallet rail 30. This movement is performed by the pallet moving means 81 provided between the first and second pallet rails 30 and 40.

That is, in the first pallet feeding means 31, the servomotor 33 is stopped when the transport pallet 11 reaches the end of the first pallet rail 30. On the other hand, in the pallet moving means 81, the longitudinal actuator 83 moves the driven actuator 83c toward the first pallet rail 30, and the haunting rod 82a of the operating actuator 82 is moved to the cam plate 18 of the transport pallet 11. Make it continuous.

Then, as shown in FIG. 12, the haunting rod 82a is projected from the housing 82b, the cam plate 18 as the operation piece thereof is moved in the longitudinal direction, and as shown in FIG. 15, the locking in the transport pallet 11 is performed. The member 14 is raised to a disengagement position raised from the locking position, and the locking member 14 is separated from the belt 32 to disengage them. At the same time, the haunting rod 82a of the operation actuator 82 into which the cam plate 18 is pushed is sandwiched by the sandwiching piece 26 in the transport pallet 11.

In this way, as shown in FIG. 13, the longitudinal actuator 83 is in a state where the infestation shaft 82a of the operation actuator 82 facing the end of the cam plate 18 is projected and the locking member 14 is separated from the belt 32. Moves the operating actuator 82 in the longitudinal direction of the first and second pallet rails 30, 40, and separates the transport pallet 11 that sandwiches the haunting rod 82a of the operating actuator 82 from the end of the first pallet rail 30. Move to the second pallet rail 40.

In this way, after the transport pallet 11 is moved to another second pallet rail 40, as shown in FIG. 14, the haunting rod 82a of the operation actuator 82 is immersed in the housing 82b, and the urging force of the coil spring 21 causes the haunting rod 82a to be immersed in the housing 82b. , The locking member 14 is separated from the pedestal 13 and superposed on the belt 32 provided along the second pallet rail 40, and is locked to the belt 32.

<Second pallet transfer process>
In this step, the transfer pallet 11 that has moved to the other second pallet rail 40 is conveyed along the second pallet rail 40. That is, the transport pallet 11 is mounted on the second pallet rail 40, and the locking member 14 is overlapped and locked on the belt 32 provided along the second pallet rail 40. By driving the servomotor 33 (FIG. 11) in the feeding means 41 to circulate the belt 32, the transport pallet 11 having the locking member 14 locked to the belt 32 is attached to the second pallet rail 40. Transport along.

As described above, in the pallet transfer method using the other pallet transfer device 80, since the plurality of pallet rails 30 and 40 are continuously provided in the longitudinal direction, the transfer of the transfer pallet 11 is not shown. This is preferable when transporting a relatively long distance, such as between a waiting table (not shown) and a machine, or between each machine, or between a machine and a waiting table. It is also possible to make the transport speed different for each of the pallet rails 30 and 40.

As described above, in another pallet transfer device 80 and the pallet transfer method using the transfer pallet 11, the locking member 14 is moved and engaged with the belt 32 which is a moving body provided along the guide rail 23. By separating the stopping member 14 and moving it from the first pallet rail 30 to the second pallet rail 40, and then superimposing the locking member 14 on the belt 32 which is a moving body again, the locking member 14 is belted. It can be easily engaged with 32.

As a result, the transport pallet 11 moves from the end of the first pallet rail 30 to the end of the second pallet rail 40, but in the present invention, the locking member 14 is moved to the belt 32 which is a moving body. Since the transport pallet 11 is moved away from the rail, it is moved to a different rail compared to the conventional one that requires the speed and position of the belt to be operated in synchronization with the pallet during the movement. It can be easily mounted.

Further, in this other pallet transport device 80, since the longitudinal actuator 83 moves the transport pallet 11 from one guide rail 23 to another guide rail 23, a plurality of transport pallets 11 are mounted on the guide rail 23. When mounted, the locking member 14 of one of the transport pallets 11 is disengaged from the moving body 32, and the one transport pallet 11 or the other transport pallet 11 is moved along the guide rail 23. By doing so, the distance between one transport pallet 11 and the other transport pallets 11 is changed, so that the spacing (pitch) between the plurality of transport pallets 11 can be easily changed.

In this other pallet transfer device 80, although the operation actuator 82 and the longitudinal actuator 83 are provided at the joint portion of the guide rail 23, the pitch of the plurality of transfer pallets 11 can be changed, so FIG. As shown in the above, the operation actuator 82 and the longitudinal actuator 83 may be provided in the middle of the guide rail 23.

As described above, even if the pallet transfer device 90 in which the operation actuator 82 and the longitudinal actuator 83 are provided in the middle of the guide rail 23 is used, the pallet transfer method in which a plurality of transfer pallets 11 are mounted on the guide rail 23 and moved is described. A plurality of transport pallets 11 are mounted on the guide rail 23, and the plurality of transport pallets 11 are moved by locking the locking members 14 to the moving bodies 32 that are provided and move along the guide rail 23. It becomes a thing.

Even in this pallet transport device 90, by disengaging the locking member 14 of one transport pallet 11 from the moving body 32, the plurality of transport pallets 11 mounted on the guide rail 23 can be moved. It is possible to move the belt 32 while it is mounted on the guide rail 23, regardless of the movement of the belt 32. Therefore, in a state where a plurality of transport pallets 11 are mounted on the guide rail 23, one transport pallet 11 or another transport pallet 11 is moved along the guide rail 23 for one transport. By changing the distance between the pallet 11 and the other transport pallets 11, it is possible to easily change the pitch G of the plurality of transport pallets 11.

Further, the transport pallet 11 of the present invention includes an operation piece 18 in which the moving mechanism 15 extends in the width direction, and is provided with a holding piece 26 that sandwiches the operation end portion of the operation end portion from the front and back in the longitudinal direction of the guide rail 23, and the pallet transport device 28. Since the operating actuators 67 and 82 of 80 and 90 have the infestation rods 67a and 82a sandwiched between the sandwiching pieces 26, the longitudinal actuators 66 and 83 have the infestation rods 67a and 82a in the sandwiching piece 26. The transport pallet 11 can be moved in the longitudinal direction of the guide rail 23 simply by moving the sandwiched operation actuators 67 and 82, and the longitudinal actuators 66 and 83 directly lock the transport pallet 11 and the like. It is possible to eliminate the need for a structure for moving the actuator.

Further, the transport pallet 11 of the present invention is provided with locking members 14 having unevenness 14a and 14b on both sides of the linear motion block 12 at the lower part of the pedestal 13, respectively, and the pallet transport devices 28, 80 and 90 are provided with the pallet transport devices 28, 80 and 90. Belts 32, which are moving bodies that circulate and move on both sides of the support plate 29 to which the guide rails 23 are attached, are provided, and unevennesses 32a and 32b are formed on the belts 32 on both sides thereof to form locking members 14. The transport pallet 11 and the belt 32 can be relatively firmly locked by simply overlapping each of them, and the transport pallet 11 can be reliably followed by the movement of the belt 32. As a result, even if the belt 32 is moved or stopped at a relatively high acceleration, the transport pallet 11 can be reliably followed by the movement, and the transport speed of the transport pallet can be reliably increased.

In the above-described embodiment, the case where the locking members 14 are provided on both sides of the lower portion of the pedestal 13 to be relatively firmly locked to the moving body 32 has been described, but the transport pallet 11 is attached to the moving body 32. The locking member 14 may be provided on only one side as long as it can follow the movement. Further, the moving body is not limited to the belt 32 as long as the locking member 14 can be locked, and other members may be used.

Further, in the above-described embodiment, the fluid pressure cylinders are used as the operation actuators 67 and 82, and the servomotors 63a, 66a and 83a are driven as the longitudinal actuators 66 and 83 and the widthwise actuators 63 to drive the slave elements 63c. The case of using the one that moves 66c and 83c has been described, but these are examples, and the one that drives the servomotor to move the slave is used as the operation actuator, and the longitudinal actuator and the width actuator are used. A fluid pressure cylinder may be used.

11 Transport pallet 12 Linear motion block 13 Pedestal 14 Locking member 14a, 14b Concavo-convexity 15 Movement mechanism 18 Operation piece 23 Guide rail 26 Holding piece 28, 80, 90 Pallet transport device 32 Belt (moving body)
32a, 32b Concavo-convex 33 Servo motor (means of transportation)
62 Short rail 63 Width actuator 67,82 Operation actuator 66,83 Longitudinal actuator

Claims (5)

A transport pallet (11) having a linear motion block (12), a pedestal (13) to which the linear motion block (12) is attached, and a locking member (14) provided on the pedestal (13). ,
A guide rail (23) on which the transport pallet (11) is movably mounted via the linear motion block (12) ,
A moving body (32) movably provided along the guide rail (23) and configured such that the locking member (14) of the transport pallet (11) can be locked.
A moving means (33) for moving the transport pallet on the guide rail (23) by moving the moving body (32) and locking the locking member (14) to the moving body (32). When,
A locking position where the locking member (14) is provided on the transport pallet (11) and is locked to the moving body (32), and the locking member (14) is separated from the moving body (32). A moving mechanism (15) that reciprocates the locking member (14) to and from the position ,
An operating actuator (67, 82) capable of operating the moving mechanism (15) of the transport pallet (11) to move the locking member (14) to the detached position.
A longitudinal actuator (66,83) in which the locking member (14) moves the transport pallet (11) at the detached position in the longitudinal direction of the guide rail (23).
A pallet transfer device equipped with. The moving body is a belt (32) in which irregularities (32a, 32b) extending in the width direction are alternately and continuously formed in the longitudinal direction.
The unevenness (14a, 14b) that can be engaged with the unevenness (32a, 32b) is formed on the locking member (14).
With the transport pallet (11) mounted on the guide rail (23), the unevenness (14a, 14b) of the locking member (14) at the locking position is the unevenness (32a, 32b) of the belt (32). Engage in
The pallet transfer device according to claim 1 , wherein the unevenness (14a, 14b) of the locking member (14) at the detached position is configured to be separated from the unevenness (32a, 32b) of the belt (32). The moving mechanism (15) of the transport pallet (11) extends in the width direction orthogonal to the guide rail (23), and is provided with an operation piece (18) that moves in the width direction to move the locking member (14).
The operating actuator (67,82) has a haunting rod (67a, 82a) that can haunt the housing (67b, 82b) and abut against the operating end of the operating piece (18).
The pedestal (13) of the transport pallet (11) is provided with a holding piece (26) that sandwiches the operating end of the operating piece (18) from the front and back in the longitudinal direction of the guide rail (23).
The longitudinal actuator (66,83) is a guide rail (23) in which the operation actuator (67,82) in which the haunting rod (67a, 82a) is sandwiched between the holding pieces (26) together with the transport pallet (11). ), The pallet transfer device according to claim 1 or 2 , which is configured to move in the longitudinal direction. A plurality of guide rails (23) for movably mounting the transport pallets (11) are continuously provided in the longitudinal direction.
The operating actuator (67,82) and the longitudinal actuator (66,83) are the guide rail (23).
Provided at the joint of
The longitudinal actuator (66, 83) is another guide in which the locking member (14) connects the transport pallet (11) at the detached position from one guide rail (23) to the one guide rail (23). Configured to move to rail (23)
The pallet transfer device according to any one of claims 1 to 3 . A pair of guide rails (23) for movably mounting the transport pallets (11) are provided in parallel with each other at predetermined intervals in the horizontal direction.
A short rail (62) on which the transport pallet (11) can be mounted, a first position in which the short rail (62) is continuous with one guide rail (23), and a second position continuous with the other guide rail (23). Equipped with a widthwise actuator (63) to move between two positions
The widthwise actuator (63) is configured to move the operating actuator (67) and the longitudinal actuator (66) along with the short rail (62).
In the longitudinal actuator (66), the locking member (14) moves the transport pallet (11) at the detached position from the one or the other guide rail (23) to the short rail (62) or the short rail. It was configured to move from (62) to the one or the other guide rail (23).
The pallet transfer device according to any one of claims 1 to 3 .

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