JPH0388619A - Positioning and stopping mechanisms of transfer jig - Google Patents

Abstract

PURPOSE:To enhance efficiency in cross direction space, and prevent positional shift and dust generation by installing a stop roller on the front face and in the middle in transfer direction of a transfer jig, a through groove and a positioning hole on its bottom face, and a stop mechanism and a positioning mechanism with a positioning pin and a support pin under the transfer mecha nism. CONSTITUTION:A transfer jig 6 is stopped by raising a stop mechanism 7 toward the transfer jig 6 to bring a stopper 7a into rotation contact with a stop roller 6c. The jig 6 is then positioned by pushing up a positioning mechanism 8 with a press cylinder 8c and inserting a positioning pin 8a into a positioning hole 6e. At the same time, a support pin 8b abuts on the bottom base of the jig 6 to support the jig 6 together with the positioning pin 8a with a spacing t as against a transfer roller 1, and separate it from the transfer roller 1.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a (7) positioning and stopping F mechanism of a conveying jig, specifically, a roller conveying mechanism that positions a conveying jig on which a small part U is placed at a predetermined position. This relates to the mechanism for stopping and lifting.

[Prior Art] Recently, systems in which a roller conveyance mechanism and a robot for processing or handling parts are combined have been used to control the effects of processing or inspecting a large number of parts. There is.

In this case, when a small part such as a magnetic head is processed or handled by the roller transport mechanism 42, the part is positioned relative to the robot with an accuracy of <67 and then stopped at L1-4. It is necessary.

FIGS. 3(a) and 3(b) show the configuration of the roller conveyance mechanism for []--, in which conveyance rollers 1 arranged in parallel rotate. In contrast, the transport jig 2 on which the small parts 3 are positioned and mounted moves in the direction of arrow R. Note that the positioning method is not illustrated. Since the conveying jig for moving the conveying rollers is somewhat undefined, guide rails 4 are provided on both sides thereof. A stop (-6) mechanism 5 is provided at a predetermined position 1d of the roller transport mechanism, and the transport jig 2 is stopped by the operation of the stopper 5a, and processing or handling operations are performed on the part 3.

Next, in the actual system, as shown in Figure (C), a plurality of conveyance jigs 2 (C1 + C2, C3...) are continuously carried at a stop position St provided at one end of the roller conveyance mechanism. and multiple stop positions S 2
tS3... are provided, and the conveying jig is sequentially conveyed to each stop position 82183... and taken out.

[Problem to be solved] In the above, since the stopper 5a moves in the horizontal direction,
The leading edge of the conveyance jig 2 that comes into contact with this is pushed, causing a positional shift. Due to this positional deviation, the parts 3 relative to the transport jig 2
Since positioning becomes meaningless, it is necessary to position the transport jig itself at the stop position. When the conveyance jigs are continuous, it is necessary to separate and stop one by one. In addition, in the above mechanism, the stopper 5
There is a risk of dust generation due to contact between a and the transport jig 2, and furthermore, when the stopped transport jig 2 is in contact with the transport roller 1, the transport jig vibrates due to the simultaneous rotation of the transport rollers. There is. On the other hand, the lateral stop mechanism 5 is inefficient in terms of space when a large number of lines are arranged in parallel. On the other hand, since the roller conveyance mechanism has sufficient space in its corner, it is effective to utilize this space. Mechanisms and transport jigs are not supported.

The object of the present invention is to solve the following problems and provide a transport jig positioning mechanism that satisfies the conditions.

[Means for Solving the Problems] The present invention is a positioning and stopping mechanism for a conveyance jig in which small parts are positioned and placed in a roller conveyance mechanism having conveyance rollers. There is a stop roller in the center of the front of the transport jig in the direction of movement, and a stop roller on the bottom of the transport jig.
A through groove in the advancing direction and at least two positioning holes for positioning the conveying jig are respectively provided. In addition, there is also a stop v1 side that has a stop/pa that rises from below and contacts the stop E roller described above to stop the transport jig at the do part of the roller transport mechanism, and a positioning hole for the stopped transport jig. A positioning mechanism having a positioning pin that is fitted into the conveyance roller and a support pin that supports the conveyance jig at a distance from the conveyance roller.

[Function] In the position comfort stop mechanism with the configuration of L,
Both the stopping mechanism and the positioning mechanism are provided at the end of the roller conveying mechanism, resulting in good space efficiency. The stop L roller that comes into contact with the raised stopper to stop the conveyance jig is located in the center of the conveyance jig, and this contact is rotational contact, which prevents misalignment of the conveyance jig and dust generation. . At this upper stop position, the elevated positioning bin is fitted into the positioning hole, the transport jig is positioned, and is supported by the positioning bin and the support bin. Here, since the supported conveyance jig is separated from the conveyance roller,
The vibration does not affect the transport jig and it becomes stable.

As described above, predetermined processing or handling operations are performed on the parts placed on the stopped transport jig, and when this is completed, the stopper, positioning pin, and support bin are all lowered, and the transport jig is transported by rollers. Ru.

Next, we will describe the operation when the conveyance jig is continuous.
When the conveyance jig starts due to the lowering of the stopper, the stopper moves to the position immediately after the roller where the stop + I = rrf and I.
J? Individual separation is performed by stopping the next transport jig that was subsequently transported. In this case, the stopper rises by E with respect to the space of the through groove of the conveyance jig. In other words, if there is no through groove, the stopper cannot rise.

Embodiment FIGS. 1(a), 1(b) and 1(C) show the overall and partial structure of an embodiment of a zero-protrusion structure for positioning a conveyance jig according to the present invention. In Figure (a), reference numeral 6 denotes a conveyance jig in the present invention, in which a notch 6b is provided at the center of the front surface of the metal block 6a in the direction of movement, and a stopper and roller 6C are attached thereto as rotating blanks. Further, a through groove 6d in the advancing direction is provided at the bottom of the metal block 6a,
Two positioning holes 6e are provided at one diagonal point of the bottom surface. For these, a stop 1 knee Ja horizontal 7 having a stopper 7a is provided at the do portion of the roller conveyance mechanism, and a positioning pin 8a corresponding to the positioning hole 6e and two support pins are provided at symmetrical positions. a positioning mechanism 8 having
And a pressing cylinder 8C is provided for each. The stopper 7a, the tip of the positioning pin 8a, and the positioning hole 6e are sloped to ensure smooth contact or fitting. Note that the operating positions of the positioning pins 8a and the support bins 8b are set so that the bottom surface of the supported conveyance jig 6 is separated from the conveyance roller 1 by an appropriate distance so that they do not come into contact with each other.

Describing the operation of each mechanism, the operation of the stop mechanism 7 causes the stopper 7a to move to -L as shown in Figure (b).

Then, the conveyance jig 6 comes to a stop UZ by rotationally contacting the stop L roller 6c. Next, the positioning bin 8a is moved to the upper Fl by the pressing cylinder 8c as shown in (A) → (Iff) in Figure (C).
The conveyance jig 6 is inserted into the positioning hole 6e and positioned, and the conveyance jig 6 is supported by the support pin 8b which is raised at the same time, separated from the conveyance roller by a distance t.

As described above, the interval t isolates the conveyance jig 6 from the rotational vibration of the conveyance roller 1 and stabilizes it.

FIG. 2 shows the positioning stop tL of the conveyance jig according to the present invention,
This figure shows an embodiment in which the mechanism is applied to the continuous conveyance jig conveyance system shown in FIG. 3(c).

In (A) of the figure, the operation of the roller conveyance mechanism is started, each conveyance roller 1 rotates, and a plurality of conveyance jigs 8 (CI, C2, C3...) mounted on it are indicated by the arrows. It is conveyed in the direction R and is continuously stopped by the stopper 7a-1 at the first stop position Sl.

Then, at (0), when the Puff Me 1 descends, the conveying jig Ct starts as shown in (C), but when it stops, immediately after the roller 6c passes, it enters the space of the through groove 6d. In contrast, the stopper 7a-1 is raised.

t-, yr-t, conveying jig C by the stopper 7a-1
2 and thereafter, it is stopped I-, but only the conveyance jig C1 is separated and advances, and as shown in (d), it is positioned at the second stop +h position S2 by the stopper 7a-2 and the positioning mechanism 8. . In the figure, the stop position is 81. There are two locations in S2, the stop 1 mechanism 7 and the positioning mechanism 8 at the L position, which are necessary for processing or handling the parts.
are arranged respectively. Furthermore, although the positioning mechanism 8 is omitted at the first stop position, it may be provided if necessary.

[Effects of the Invention] As is clear from the above explanation, in the positioning/stopping mechanism for a conveyance jig according to the present invention, the stop 11 mechanism and the positioning mechanism are disposed at the do portion of the roller conveyance mechanism, so that Good space efficiency. Since the stop roller with respect to the stopper is located in the center and comes into rotational contact with the stopper, there is no misalignment of the conveying jig and dust generation. Due to the distance between the stopped conveyance jig and the conveyance roller,
Vibrations caused by the rotating conveyance rollers are eliminated, and the conveyance jig is stably stopped. In addition, it has many advantages such as the movement of the stopper in the passage groove of the transport jig, allowing multiple continuous transport jigs to be separated individually, making it possible to position and place small parts such as magnetic heads. For a roller conveyance mechanism that conveys multiple conveyance jigs, there is a great effect in providing a mechanism that separates the conveyance jigs individually, positions them at multiple positions, and stops them stably. be.

[Brief explanation of drawings]

1(a), (b), and (C) are overall and partial structural views of an embodiment of the positioning and stopping mechanism for a conveying jig according to the present invention, and FIG. 2 is a positioning and stopping mechanism for a conveying jig according to the present invention. 1-Explanatory diagram of the configuration and operation when the mechanism is applied to a roller transport mechanism that continuously transports a transport jig and stops at a plurality of stop positions, Figures 3 (a), (b) and (C ) is an explanatory diagram of the basic configuration of a roller transport mechanism and problems with positioning of a transport jig transported by the roller transport mechanism. 1... Conveyance roller 3... part, '17. 5...Stop+1 mechanism, 6...Transport jig, 2...Transfer jig, 4...Guide rail, 5a...Stopper, 6a...Metal block, 6b...Notch Part, 6d...Through groove, 7...Stop mechanism, 8...Positioning mechanism, 8b...Support bin,...Stop roller...Positioning hole,...Stopper,...Positioning Pin, ... suppression cylinder.

Claims (1)

[Claims] (1) In a roller conveyance mechanism having a conveyance roller for a conveyance jig on which small parts are positioned and placed, a stop roller is provided at the center of the front surface of the conveyance jig in the direction of movement, and a stop roller is provided on the bottom surface of the conveyance jig. A through groove in the traveling direction and at least two positioning holes for positioning the conveyance jig are provided respectively at the bottom of the roller conveyance mechanism, each rising from below and contacting the stop roller to position the conveyance jig. a stop mechanism having a stopper to stop the conveyance jig; a positioning pin that fits into the positioning hole of the stopped conveyance jig; and a positioning mechanism having a support pin that supports the conveyance jig at a distance from the conveyance roller. A positioning and stopping mechanism for a transport jig, characterized in that it is provided with.