JP2519046B2 - Work transfer method on transfer processing line - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method of transferring a work on a transfer processing line, such as milling the side surface of a work with a side milling cutter.

(Prior Art) Conventionally, for example, the following method is used as a method of transferring a work on the transfer processing line of the above-described example.

That is, as shown in FIG. 6, the conveying line 62 is set at a position where the side milling surface a of the work A coincides with the side blade of the side milling cutter 61, and the side milling station 63 is set.
A side milling machine 64 is provided for lateral movement, and the distance between the works A and A conveyed on the above-mentioned conveyance line 62 is set to be sufficiently large so as not to interfere with the side milling cutter 61, and is conveyed from the preceding stage. The side milling surface a of the work A is milled by the side milling cutter 61 at the above-described processing station 63.

However, in such a conventional method, the work A ...
Since the transfer pitch P2 of is increased, there is a problem that the equipment of the transfer processing line becomes large.

(Object of the Invention) It is an object of the present invention to provide a work transfer method for a transfer processing line that can shorten the work transfer pitch and make the equipment compact.

(Structure of the Invention) According to the present invention, a machine having a side milling cutter is sequentially transferred to each station on a transfer processing line in which at least one transfer line is arranged on the side of the transfer mill. Either of the side milling station and the front or rear station so that the work of at least one of the latter stations does not interfere with the operation of the side milling cutter of the side milling station along the work feed direction. It is characterized in that it is a method of transferring a work on a transfer processing line, in which a work on one side is displaced laterally of the transfer line by a work displacing means.

(Effect of the Invention) According to the present invention, since the work is displaced laterally of the transfer line by the work displacing means in either the side milling station described above and the station in the preceding stage or the station subsequent thereto, Even if the conveyance pitch is reduced, the work and side milling cutter do not interfere.

As a result, there is an effect that the work transfer pitch can be greatly shortened and the equipment of the transfer processing line can be made compact and compact.

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

The drawings show a transfer machine used for a work transfer method of a transfer processing line. In FIGS. 1 and 2, a machine base 3 is mounted on a floor surface 1 via a base 2, and a transfer bar lift is mounted on the base base 3. A drive rod 5 which is horizontally reciprocated by a cylinder 4 is mounted, and a transport bar 7 is horizontally mounted on the drive rod 5 via a plurality of link mechanisms 6.

Worktables 8 ... Are bolted to the above-mentioned transport bar 7 at predetermined equal intervals, and the work A is placed on each of these worktables 8.
It is structured to include ...

On the other hand, the predetermined processing area 9 of the transfer processing line
Is provided with a side milling machine 11 having a side milling cutter 10, and the side milling machine 11 is arranged along a first bed 12 parallel to the transfer processing line and a second bed 13 orthogonal to the transfer processing line in FIG. It is configured to be movable in the directions of arrows a and b.

In the above-mentioned processing area 9, there are set a first station 15 located next to the supply station 14, a second station 16 as a side milling processing station, and a third station 17 preceding the discharge station 18. .

On the other hand, a drive unit 19 for moving the transport bar forward and backward is arranged on the rear side of the transfer processing line.

This drive unit 19 includes a drive box 20 and a gearbox 21.
A rack operated by a hydraulic cylinder and a pinion meshing with the rack are provided inside, and a rotating arm 23 is connected to a pinion shaft 22 connected to the above-mentioned pinion. , The slider 26 sliding along the guide 25 is vertically slidably engaged in the groove of the C-shaped guide plate 27 of the slider 26, and the bar driving member 28 of the slider 26 is fixed to the transport bar 7. The conveyor bar 7 is moved forward and backward by one pitch via the above-mentioned bar drive member 28 by reciprocating the rotating arm 23 about the pinion shaft 22 about 180 degrees.

By the way, in the above-mentioned link mechanism 6, as shown in FIG. 3, L-shaped links 32, 32 are welded and fixed to a central shaft 31 pivotally mounted between the left and right side plates 29, 30. The swing pin 33 is stretched between the lower free ends of the 32 and the above-mentioned links.
A lift roller 35 is attached between the upper free ends of 32 and 32 via a roller shaft 34.

While the drive rod 5 is connected to the swing pin 33, the transport bar 7 is mounted on the lift rollers 35.

Further, fixing receivers 36, 37 for receiving the lower surface of the work A are provided on the upper ends of the left and right side plates 29, 30 and fixing pins 38 are screwed on the upper ends of the side plates 30 on the side milling cutter 10 side.

Engagement holes 40, 41, 41 are formed on the lower surface of the work A described above so as to properly engage with the fixed pins 38 and the transfer pins 39, 39 described later.

The above-mentioned transfer pins 39, 39 are pins integrally provided on the work table 8 and the tops of the transfer pins 39, 39 are conical taper cones.

Moreover, only the axes C1 and C1 of the transport pins 39 and 39 corresponding to the second station 16 as the side milling station are moved toward the side milling cutter 10 side by the displacement amount l from the axes C2 and C2 of the engaging holes 41 and 41. By shifting, the work bar A and the work table 8 are lifted by the link mechanism 6, and the work cone A is displaced by the taper cones at the tops of the transfer pins 39, 39 as shown in FIG.
Only the side milling cutter 10 is displaced so that the work A is displaced to the side milling position (the solid line position in FIG. 4).

It should be noted that stations 1 other than the second station 16
The axes of the transport pins 39, 39 corresponding to 4, 15, 17, 18 are configured to coincide with the axes of the engaging holes 41, 41 of the work A.

 Next, a work transfer method will be described.

When the work A is transferred from the first station 15 to the second station 16 as a side milling station, the cylinder 4 for lifting the transfer bar from the state shown in FIG.
2 is operated in the direction of arrow d in FIG. 2, the links 32 of the link mechanism 6 swing in the clockwise direction in FIG. Each of these elements 7, as they are pushed upwards by 35…
8 changes from the state shown in FIG. 3 to the state shown in FIG.

At this time, the transport pins 39, 39, which are eccentric to the side milling cutter 10 side by the displacement amount 1 with respect to the axis C2 of the insertion hole 41, are inserted into the above-mentioned insertion holes 41, 41, so that the work A is on the side. At the second station 16 as a milling station, it is displaced to the side milling position on the side milling cutter 10 side as shown in FIG.

Under the displacement state shown in FIG. 4, the side milling machine
While advancing 11 along the first bed 12 from the solid line position in FIG. 1 to the imaginary line position in FIG. 1, the side face of the work A is milled by the side milling cutter 10.

After finishing this side milling, drive unit
The operation of 19 moves the carrying bar 7 forward by one pitch.

Next, the cylinder 4 for lifting the transport bar is attached to the arrow e in FIG.
By operating in the direction, the work A on the work table 8 is lowered onto the fixed receivers 36, 37 via the link mechanism 6.

At this time, the fixing pins 38, 38 are engaged with the engaging holes 40 on the lower surface of the work A.
The work A is displaced on the opposite side milling cutter side transfer line and is transferred from the second station 16 to the third station 17.

Next, by operating the drive unit 19, the above-mentioned transport bar 7 advanced by one pitch is retracted by one pitch, and the above operation is sequentially repeated to side-mill the workpiece A and control the transport.

In this way, the work A is displaced to the processing position (the position indicated by the solid line in FIG. 4) only by the second station 16 as the side milling processing station, and the stations 14, 15, 17, 18 before and after the processing station are moved. Then the above work A
Is located on the opposite side milling cutter side conveying line, so even if the conveying pitch P1 between the works A and A (see FIGS. 1 and 2) is reduced, the work A and the side milling cutter 10 interfere with each other. do not do.

As a result, the conveyance pitch of the work A can be significantly shortened as compared with the conventional method, so that there is an effect that the equipment of the transfer processing line can be made compact and compact.

FIG. 5 shows another embodiment, in which a cylinder base 42 is provided on the side plate 30 on the side milling cutter 10 side.
A cylinder 43 for displacing the work is mounted on 42, and a C-shaped guide is attached to the tip of piston rod 44 of this cylinder 43.
A slider 47 that slides along a groove 46 of 45 is provided, and a pin 48 is provided on the slider 47 so as to project from the second station 16 as a side milling station. The workpiece A is moved to the side milling position on the side milling cutter 10 side by operating the cylinder 47 at the position of the second station 16 (the phantom line α in FIG. 5).
Position), and after the milling process is completed, the above-mentioned work A is again displaced on the transport line on the opposite milling cutter side.

Since the work conveying method shown in FIG. 5 has substantially the same operation and effect as the previous embodiment, in FIG. 5, the same parts as those in the previous figure are designated by the same reference numerals, and the detailed description thereof will be omitted. To do.

In the present embodiment, the positions of the work A before and after the second station 16 are different from those of the second station 16.
Although the position of the work is displaced, it is not necessary to limit to this embodiment, and depending on the lateral movement stroke of the side milling cutter 10, only the front stage or the rear stage of the position of the work of the second station 16 can be changed. Only one may be displaced.

In the correspondence between the configuration of the present invention and the above-described embodiment, the side milling station of the present invention corresponds to the second station 16 of the embodiment, and similarly, the work displacing means is the same as that of the first embodiment. Although it corresponds to the tapered cones on the tops of the pins 38 and 39 and the cylinder 47 of the second embodiment, the present invention is not limited to the configuration of the above-mentioned embodiment.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is a schematic plan view of a transfer machine used in a method of transferring a work on a transfer processing line, FIG. 2 is a front view of FIG. 1, and FIG. A sectional view of the main part along the line III-III, FIG. 4 is an explanatory view of a state in which the work is displaced to a side milling position, FIG. 5 is a sectional view of the main part showing another embodiment, and FIG. It is explanatory drawing of the conventional work conveyance method. 10 …… Side milling cutter 16 …… Second station 38 …… Fixing pin, 39 …… Conveying pin 47 …… Cylinder, A …… Workpiece

Claims (1)

(57) [Claims] 1. A transfer processing line in which at least one machine having a side milling cutter is arranged on the side of a transfer line to sequentially convey a work to each station, while a station at a front stage or a station at a rear stage of the side milling station is conveyed. Set the work in either the side milling station and the front or rear stage so that the work of at least one of the stations does not interfere with the operation of the side milling cutter of the side milling station in the work feed direction. A work transfer method for a transfer processing line in which the work is displaced laterally of the transfer line.