JPS6076949A - Pallet attitude changing device in transfer machine - Google Patents

Abstract

PURPOSE:To simplify the structure of work station by rotating a pallet in vertical attitude for holding a work on the front face as it is to convert the attitude then directing each sideface on the outercircumference upward to enable working from upper side. CONSTITUTION:A pallet 4 in vertical attitude having a work on the front face is led unilaterally on transfer line and worked at each work station then rotary attitude conversion is performed at the attitude converting station 8 to direct the working face upward. In other word, the pallet 4 is held in vertical attitude between upper and lower guiderails 5a while the upper and lower clamping clocks 18 will close to couple the pallet 4 to the leading edge of operating rod 13. When advancing the rod 13 in accordance to the piston 12, the pallet 4 will advance accordingly to open the rails 5a vertically. Consequently, when rotating the rod 13 without hindering advance of pallet 4, the attitude of pallet 14 can be converted by 90 deg. or 180 deg. together with the work, resulting in simplification of each work station.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention #i relates to a pallet attitude changing device in a transfer machine used for processing engine carburetors, for example.

Conventionally, this type of equipment has a plurality of machining stations at appropriate intervals on a transfer line that intermittently transports a vertical pallet holding workpieces in a removable manner in one direction, and changes the posture by intervening with the transfer line. A system is known in which at least one stage of stations is provided so that the workpiece is processed at the processing station and the pallet is changed in attitude at the conversion station. The pair of upper and lower guide rails that make up the line generally consists of a pair of upper and lower fixed rails that are fixed at a predetermined height interval, and in some cases there is a support between the pair of fixed rails. The pallet to be transported is held between the rails and can be rotated at t\,
In other words, the vertical position can be changed by rotating, for example, 90 degrees or 180 degrees; thus, changing the position of the pallet requires tilting it horizontally. However, the disadvantage is that the structure is complicated.

The purpose of the present invention is to provide a device that does not have such inconveniences.The present invention has a processing station on a transfer line that intermittently transports a vertical pallet holding workpieces in a removable manner in one direction. with multiple stages at appropriate intervals,
At least one stage of attitude changing stations is intervened in this process, and each processing station processes the workpiece, and the converting station changes the attitude of the pallet. A pair of upper and lower guide rails constituting the transfer line are formed into a pair of upper and lower movable rails Km that can be opened and closed vertically in the part corresponding to the conversion station, and an operating rod is installed on the back side of the guide rails to move back and forth. The rod is rotatably attached to the back of the pallet between the #1 pair of movable rails at its tip, and the rod is connected to the pair of movable rails to connect the rod to the back of the pallet between the #1 pair of movable rails. The pair of movable rails are opened and closed vertically as they move back and forth.

An example of implementing the present invention will be explained with reference to the attached drawings.

In the drawing, +11 indicates a hollow column extending longitudinally in the lateral direction, and 1 is attached to the lower front side of the column (1) and the lower back side thereof.
Each transfer line (2) (2J) is provided on the upstream side and downstream side extending along this line, and each transport line +31 extending between both lines +21 and +21 is provided on the outside of both ends thereof.
+31 and thus holds the workpiece a to be processed (4) is connected to the upstream transfer line (2).
was guided to one side, and then the downstream nodrous spherule (2) was guided to the other side.

Since both transfer lines (2) (2) have approximately the same shape, below, we will mainly explain one of them, that is, the lower front transformer 7 align (2).This line (2) has a pair of upper and lower guides. Rail +51 +51 and a transfer bar (6) that reciprocates along this rail, the pallet (4) is maintained in a vertical position holding the workpiece a in front of it, and is moved between both guide rails (51 (51). The processing station (7) is placed on the line (2).
) are arranged in a plurality of stages at appropriate intervals, and one stage of an attitude changing station (8) is provided by intervening therein, and the pallet (4) is guided to the processing station (7) and the position changing station (8) is arranged in parallel at appropriate intervals. Workpiece a is connected to each vertical processing unit (9) above it.
], was subjected to drilling and other processing, and was guided to the conversion station (8) and rotated so that a predetermined attitude change was applied.

The conversion station (8) is detailed as shown in FIGS. 4 and 5, namely the guide rail (5).
The movable rails (5) are separated and independent in the corresponding part of station (8)K and can be opened and closed vertically.
a) (5 &), and a supporting frame α is fixedly installed in the side wall of the column fi+ on the back side thereof, and is moved back and forth by a fixed operating cylinder αυ on the outer periphery and hydraulic pressure inside it. A gear train (L7) is attached to the pinion axis αe having a pinion (+51) that engages the rod ([3) with the rack Q41 on the lower side. In this way, the jid αJ is moved back and forth along with the operating piston (121) and rotated along with the pinion shaft aF5, and furthermore, hydraulic and other It is equipped with a plunger αη that moves back and forth, and a pair of clamp claws 08 on its front surface that open and close in conjunction with the plunger αη.
081 were closed together to sandwich the boss (4a) at the center of the back surface of the pallet (4), and the rod αJ was connected to the pallet (4). Furthermore, the above-mentioned upper and lower movable rails (5a) (5a) each support arm (
5b) It is pivotally supported on the front surface of the support frame (+01) described above through (5b), and connected to the brackets 09α above and below the front surface of the operation piston a21 described above through each link (2I). As the piston circle moves forward, the bracket 09α mark, the link (a), the arm (s)
b) (5b) so that they are opened vertically to each other.

To explain its operation, a pallet (4) in a vertical position with a workpiece a to be processed on the front is guided to one side on a transfer line (2) and processed into the workpiece & at each processing station (7). At the same time, a rotation type attitude change is performed at the attitude change station (8) so that the surface to be machined next faces upward.This attitude change will be described in more detail in the following. This is the general rule.

That is, for example, as shown in Figure 4, the pallet (4) is maintained in a vertical position between the upper and lower guide rails (5a), and the upper and lower clamp claws (
JPj 01G is closed and the pallet (4) is connected to the tip of the actuating rod α3, and then when the rod u3 is moved forward along with the actuating piston az on the outer periphery, the pants) (44 moves forward along with this, and at this time, the rail (s a) (5a) opens up and down accordingly, without interfering with the forward movement of the pallet (4), and then the rod a3 is moved forward. When rotated, the pallet (4) is rotated with the workpiece a, and is given a rotational attitude change of, for example, 90 degrees or 1.80 degrees.The state during this rotation is For example, as shown in Fig. 1.Next, after giving a predetermined rotation, the rod α is moved backward together with the piston az, and thus the pallet (4) is moved to the position shown in Fig. 4. and return to the rail (5a)
(5a) are mutually closed to the state shown in the figure, next, the plunger αη is advanced and the clamp claw 08+ a
81, the pallet (4) is disconnected from the rond station and moved to the next machining station (4).
7) is permitted. After that, the next processing is performed on the upward facing surface of the workpiece a.

In this way, the present invention changes the posture of a pallet that is in a vertical posture and has a workpiece to be machined on the front side by rotating the pallet while maintaining its vertical posture. It is possible to process this from the upper side.In other words, if each processing station is equipped with each vertical processing unit on its upper side, the f# configuration as a whole can be simplified. Yes, it is possible, and furthermore, its operation is sufficient by giving back-and-forth movement and rotation to the operating rod on the back side of the pallet, so the structure can be relatively simple, and it can be obtained at a low cost. has.

[Brief explanation of drawings]

FIG. 1 is a front view of an example of a transfer machine equipped with the device of the present invention, FIG. 2 is a schematic plan view thereof, and FIG. 3 is an I
Fig. 4 is an enlarged cutaway side view of the main part, and Fig. 5 is a front view thereof. a...Wall (2)...Transfer line (4)...Punt 151
(5)...Guide rail (7)...Processing station (8)...Posture change station (5
a) (5a)...Movable rail αJ...Operating rod Q81 M...Clamp claw Patent applicant Translated by Honda Motor Co., Ltd. - Figure 4.

Claims (1)

[Claims] A plurality of processing stations are installed at appropriate intervals on a transfer line that intermittently transports pallets in a vertical position holding workpieces in a removable manner in one direction, and at least one stage of a posture changing station is installed by intervening with the processing stations. In the system, a pair of upper and lower guide rails constituting the transformer 7 align is provided, in which the workpiece is processed at each processing station and the pallet is changed in attitude at the conversion station. The part corresponding to the conversion station is configured with a pair of upper and lower movable rails that can be opened and closed vertically, and an actuating rod is provided on the back side of the rail so that it can move back and forth as well as freely rotate, and this is attached to the tip of the rail. Furthermore, the four rods are configured to be able to be attached to the back of the pallet between the pair of movable rails, and the four rods are connected to the pair of movable rails so that the pair of movable rods can be movable as the rods move back and forth. A pallet attitude changing device in a transfer machine in which rails are opened and closed vertically.