JP2508889Y2 - Chip prevention structure for transfer machines using pallets - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a transfer machine having a pallet, which is suitable for preventing chips generated from a work from entering the pallet. Related to a structure for preventing chips from entering.

[Prior Art] FIG. 6 shows a schematic view of a transfer machine 19 provided with a pallet 6. The plurality of pallets 6 are arranged in series at the transfer pitch (L dimension) and are fed in the direction of arrow A. In this case, it is usual that a gap 7 having an appropriate size (a) is provided between the adjacent pallets 6, 6. A work 10 is placed on each pallet 6 via a pallet jig 9. The work 10 is subjected to predetermined processing by a processing unit (not shown) arranged at a predetermined position. The chips 8 produced by the processing fall on the pallet 6 and also along the cover 20 arranged on the side surface of the pallet 6 downward. The top of the pallet 6 is formed in a downwardly sloping contour shape so that the chips can easily fall.

[Problems to be Solved by the Invention] As described above, the cutting chips 8 may drop toward the cover 20 along the downward inclination of the top of the pallet 6 and may also drop downward along the cover 20. However, as described above, since the pallet 6 is fed in the direction of arrow A at an appropriate speed, some chips 8 enter the interior through the gap 7 and support the reference surface below the pallet 6 and the pallet 6. Pallet standard gold (not shown)
Enter between and. Chips 8 on the reference surface side of the pallet 6
However, when the pallet enters, the support of the pallet 6 on the machine body side is not smoothly performed, and the positioning accuracy of the pallet 6 is deviated. For this reason, in the case of the conventional transfer machine, an air blower is provided at each station to remove the invading chips with air.
However, in order to install the air blower in each station, an air blower pipe and a nozzle are required, and a pipe connecting the air supply source and the pallet side is also required, which causes a problem that the device structure becomes complicated. Further, there is a problem that the air blown chips adhere to other places on the machine body, which may cause unexpected troubles.

The present invention solves the above problems and prevents chips from entering the pallet and eliminates air blowers and other means for removing chips. The purpose is to provide a structure for preventing entry.

[Means for Solving the Problem] In order to achieve the above object, the present invention provides a pallet of chips falling from a work placed on a plurality of pallets arranged in series at appropriate intervals. In the chip entry prevention structure of the transfer machine that prevents entry to the side,
A first cover having substantially the contour of the pallet and a contour substantially similar to the shape of the pallet is fixedly arranged on the end surface of the pallet, and the first cover of the adjacent pallets is arranged between the first hoods of the adjacent pallets. The pendant has an upper surface arranged on an extension line of the inclined surface of the pallet, and has a hanging lower surface that hangs from an inclined end of the upper surface and a bent curved surface that inclines upward from the hanging lower end toward the inside. A second cover that has the third cover and a third cover that covers the side surface of the pallet and a machine body that supports the pallet are arranged along the traveling direction of the pallet, and the third pallet inclines downward. In addition, a chip entry prevention structure for a transfer machine using a pallet is formed so that its upper end is formed so as to engage with the lower ends of the first pallet and the second pallet. It is.

[Operation] Chips generated from the work on the pallet are blocked by the first cover and the second cover provided between the pallets,
Do not enter inside the pallet through the space between the pallets. First
Since the hippo is formed from a contour similar to the contour of the pallet, the chips that have fallen on the first hip fall down along the first hip, and are placed so as to overlap with the first hip. It falls to the side of the 3rd hippo. Further, the chips that have fallen onto the second cover also fall onto the third cover side. Since the third cover is formed in a downward slope, the chips will fall smoothly downward.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the pallets 6 are arranged in series with an appropriate gap 7 therebetween. A work 10 is placed on each pallet 6 via a pallet jig 9.

As shown in FIG. 2, the pallet 6 has an inclined surface 6a inclined from the top to both sides, and a flat pallet reference surface 6b is formed on the lower surface. On the side of the machine body that supports the pallet 6, a pallet reference metal 11 that contacts the reference surface 6b of the pallet 6 to hold the pallet 6 in a predetermined vertical position, a positioning pin 12 that positions the pallet 6 in a predetermined position, a positioning pin A lifter 14 for lifting the drive means pallet 6 (not shown) and a guide member 15 of the lifter 14.
Etc. are provided. Further, a processing unit 16 for performing a predetermined processing on the work 10 is arranged at a predetermined position of the transfer machine. Further, the work 10 is pressed from above by a clamper 18 operated by a cylinder 17 supported on the fixed side and fixed on the pallet jig 9.

Next, the first hippo 1,2 and the second hippo 13 and the third
The hippo 3 will be described.

The first covers 1 and 2 have the same contour shape. As shown in FIG. 1, the first cover 1 is fixed to the front end side of the pallet 6 in the traveling direction, and the first cover 2 is rearward. It is fixed to the end side. The first cover 1 and the first cover 2 differ only in the length in the longitudinal direction along the traveling direction of the pallet 6, and the other parts are the same.

As shown in FIG. 3, the first covers 1 and 2 are made of a roof having a contour substantially equal to the contour on the top side of the pallet 6, and the slopes 1a and 2a descending from the top edge to both sides and the slopes thereof. Drooping lower surfaces 1b, 2b that hang down substantially vertically from the edges, and drooping lower surfaces 1b,
It is composed of folding curved surfaces 1c, 2c, etc. that are bent inward from the end of 2b. In addition, a flange surface 1 for fixing the first cover 1 and 2 to the front and rear ends of the pallet 6 is attached to the first cover 1 and 2.
d, 2d is formed. The lengths of the first cover 1 and the first cover 2 in the longitudinal direction are such that, when the first cover 1 and the first cover 2 are fixed to the pallet 6, the total length of the pallet 6 including the first cover 1 and 2 is substantially smaller than that of the transfer bitch L. It is formed to be as short as δ. That is, when the first covers 1 and 2 are attached to one pallet 6, the gap between the first cover 2 and the first cover 1 of the next pallet 6 is such that the minute gap δ is maintained. Are formed. The minute gap δ is for preventing the interference of the cover.

As shown in FIGS. 1 to 5, the second cover 13 is
The first cover 1 and the first cover 2 are provided below the cover 1 and the first cover 2 and are bridged between them, and are formed in a shape similar to the lower side of the first covers 1 and 2. The inclined surface 13a is arranged on an extension line of the inclined surface of the pallet 6 as shown in FIG. Further, the bending surface 13c therebelow is formed at the same position as the bending surface 1c, 2c of the first cover 1, 2 and of the same shape.

The third cover 3 is a cover arranged below the first cover 1, 2 and the second cover 13, and is composed of a moving cover 4 and a fixed cover 5. The third cover 3 covers both side surfaces of the pallet 6 and the machine body that supports the pallet 6, and is arranged along the traveling direction of the pallet 6. The moving cover 4 is, as shown in FIGS. 2 and 4, a first cover.
The bent surfaces 1c and 2c of 1, 2 and the bent surface 13c of the second cover 13 and the inclined surface 4a that overlaps one end surface side, and the hanging lower surface 4b that hangs downward from the inclined end. The upper end of the inclined surface 4a is formed to extend to the vicinity of the side surface of the pallet 6. The fixed cover 5 has a drooping surface 5a that hangs down by hanging one end surface side on the drooping surface 4b.
And an inclined surface 5b that inclines downward from the end of the hanging surface 5a, a vertical surface 15c that hangs from the end to the lower end of the inclined surface 5b, and the like. The movable cover 4 is fixed to the lifter 14 and moves up and down together with the lifter 14.

 Next, the operation of this embodiment will be described in more detail.

As shown in FIG. 4, the chips 8 generated from the work 10 are
While falling down along the inclined surface 6a of the pallet 6,
The inclined surfaces 1a of the first covers 1, 2 covering the gaps 7 between the pallets 6,
2a and the inclined surface 13a of the second cover 13 fall downward. The pallet 6 is fed at an appropriate speed in the direction of the arrow A as described above, but the gap 7 in the pallet 6 has the first cover 1,
The chips 8 do not enter the interior of the pallet 6 through the gap 7 because they are blocked by 2. The chips 8 dropped along the pallet 6 and the inclined surfaces 1a and 2a of the first cover 1 and 2 and the inclined surface 13a of the second cover 13 are placed on the inclined surface 4a of the moving cover 4 of the third cover 3. To fall. The inclined surface 4a overlaps with the bent curved surfaces 1c, 2c and 13c of the first cover 1 and 2 and the cover 13 and both surfaces are inclined downward, so that the chips 8 do not enter the inside even from the gaps on both surfaces. The chips 8 are inclined surfaces of the moving cover 4 to the fixed cover 5.
Drop on 5b. Since the vertical bottom surface 5a of the fixed cover 5 overlaps the vertical bottom surface 4b of the moving cover 4, the chips 8 do not enter the inside through the gap between the two. The chips 8 dropped on the inclined surface 5b of the fixed cover 5 fall to the lower end side along the vertical surface 5c and are discharged by a chip processing means (not shown).

As described above, the chips 8 are the first cover 1 and 2 and the second cover 1
The chips 8 do not enter the pallet 6 and the machine body side at all because they all fall to the lower end side along the third cover 3 and the third cover 3.

Although the first covers 1 and 2 are used in the above embodiments, the first cover may be attached to only one end surface of the pallet 6 as a matter of course. In addition, the first hippo 1,2, the second
The shapes of the cover 13 and the third cover 3 are not necessarily limited to those shown in the drawing, and may be any shape as long as they block the gap 7 and reliably guide the chips 8 downward.

[Effects of the Invention] According to the present invention, the following effects can be obtained.

1) Since the gap between the pallets is blocked by the first cover, the chips generated from the work do not enter the pallet reference surface side or the like through the gap.

2) Since there is no intrusion of chips into the pallet, it is not necessary to provide a chip removing means such as an air blower inside. for that reason,
The overall structure is simplified.

3) The chips falling along the pallet and the first cover are surely guided to the lower end side by the third cover which is arranged by being superposed on the first cover and the second cover.

4) Since the first cover is detachably attached to the pallet, it can be easily coped with even when the pallet shape is changed.

[Brief description of drawings]

1 is a side view of one embodiment of the present invention, and FIG. 2 is a side view of FIG.
II front view, FIG. 3 is a perspective view showing the structure of the cover of FIG. 1, FIG. 4 is a partial cross-sectional view for explaining the operation of the embodiment, and FIG. 5 is a second cover. FIG. 6 is a partial cross-sectional view showing an engagement state with a third cover, and FIG. 6 is a partial perspective view showing an outline of a conventional transfer machine. 1,2 ...... first cover, 3 ... third cover, 4 ... moving cover, 5 ... fixed cover, 6 ... pallet, 7 ... gap, 8
…… Chips, 9 …… Pallet jig, 10 …… Workpiece, 11 ……
Pallet base gold, 12 …… positioning pin, 13 …… second cover, 14 …… lifter, 16 …… machining unit, 17 …… cylinder, 18 …… clamper.

Claims (1)

(57) [Scope of utility model registration request] 1. A chip entry preventing structure for a transfer machine, which prevents chips falling from a work placed on a plurality of pallets arranged in series at appropriate intervals from entering the pallet side. A first cover having substantially the contour of the pallet and a contour substantially similar to the shape of the pallet is fixedly arranged on the end surface of the pallet, and the first cover of the adjacent pallets is arranged between the first hoods of the adjacent pallets. It is installed, and its upper surface is arranged on an extension line of the inclined surface of the pallet, and a hanging lower surface that hangs from the sloping end of the upper surface and a folding curved surface that inclines upward from the hanging lower end toward the inside. A second cover having the third cover and a third cover that covers a side surface of the pallet and a machine body supporting the pallet are arranged along the traveling direction of the pallet, and the third pallet faces downward. And an upper end of the first pallet and the second pallet are formed so as to engage with the lower ends of the first pallet and the second pallet. .