JPH0746451Y2 - Carrier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a transfer device for supplying a metal work to a series of automatic processing devices.

[Conventional technology]

For example, a work W such as a cylinder head of an automobile part is fixed on a pallet or the like and transferred by a conveyor device such as a chain conveyor.

[Problems to be solved by the device]

However, the conventional transfer device requires an automatic pallet changer (APC) or the like to be transferred to the processing machine, and the transfer device is inevitably complicated and large.
Also, even if it is simply a positioning stopper, the conventional one is
Since the stopper is only projected into the transport path and it only makes contact with the transported article, impact force and inertial force remain and the pallet is returned to the upstream side, so the work on the conveyor for a while. Therefore, there is a problem in that accurate positioning cannot be performed because the carriage is moved back and forth with respect to the transport direction.

The present invention was devised in view of the above points, and an object thereof is to provide a transporting device that has a simple structure, does not occupy space, absorbs impact force and inertial force of a work, and can accurately position the work. To do.

[Means for Solving the Problems]

In order to solve the above-mentioned problems, in the present invention, a work is provided on a rail whose upper surface is movable, a shaft which is provided on a side of the rail and extends parallel to the rail, and a work which is provided on the shaft at a predetermined pitch. In the transfer device, which is provided on the rail and includes a work transfer device configured to reciprocate the transcer by a predetermined pitch, and a posture changing mechanism that swings the transer to hold the transvers in a horizontal or oblique direction. A convex guide that movably fits in the formed concave portion and a stopper portion that is provided on the rail side so as to be retractable and comes into contact with the work are formed of an elastic material, and the work comes into contact with the stopper portion. When this is done, the work is pushed back to the opposite side in the conveying direction by the restoring force of the elastic material, and is pressed against the transer to position the work. Even without it characterized by comprising the one of the positioning stopper device.

[Action]

By adopting the above configuration, the transfer device moves the shaft by the forward or backward movement of the cylinder, and moves the transers arranged on the shaft at predetermined pitches by a predetermined pitch, so that the work can be pushed on the rail. it can. After the cylinder has carried out the above-mentioned feeding, the posture conversion mechanism converts the transverser from the horizontal direction to the oblique direction, returns it to the original position by passing over the work W while keeping the oblique direction, and again from the oblique direction to the horizontal direction. Return to the direction and push the next work. The positioning stopper protrudes to the rail side, and when the work comes into contact, the restoring force of the elastic material pushes the work back to the opposite side in the transport direction and presses it against the transer, so that the positioning stopper and the transer are accurately arranged. Positioning can be performed.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing a series of automatic processing lines for processing a cast work, FIG. 2 is a side view showing a relationship between a rail and a work, and FIG. 3 is a sectional side view showing a posture control mechanism of a transer. Is.

In FIG. 1, a milling machine F adjacent to a molding machine for casting a cast product such as a cylinder head which is an engine part of an automobile, for removing burrs on an upper surface of the cast product, and a hole portion such as a jacket portion of the cast product. Remove core sand that forms
Sand removing devices S ₁ and S _{2 of} the table, a sand removing reversing device N that reverses the cast product to further remove sand, a sprue cutting device U that cuts the sprue of the cast product, a port deburring press P, and the like. A series of automatic processing devices are arranged in a line.

Further, a transfer device A of the present invention for transferring a cast product, which is a work, is linearly formed on the work loading / unloading side of the processing device group. In the carrier A, two rails 1 and 2 are arranged in parallel. At least one rail 1
A convex guide 1 ', which engages with the concave J of the work W, is fixed thereto, and the work W is movable on the rails 1 and 2 along the guide 1' (see FIG. 2). The rail 1,
2 is an edge cut 3a, 3b in front of each processing device in a range slightly wider than the entire length of the work W, and the rails 1, 2 are fixed on the tables 4a, 4b of the in / out device (or retracting device) of each processing device. is doing. Reference numerals 3 and 3'are guides for moving the tables 4a, 4b .... A shaft 6 is provided on the side of the rails 1 and 2 in parallel with the rails 1 and 2 and over substantially the entire area of the rails 1 and 2 with arm-shaped transers 5 for moving the work W arranged at a predetermined pitch. It is provided. One end of the shaft is rotatably connected to the end of a rod 8a of a cylinder 8 fixed to the machine base 7 side. The predetermined pitch is the forward end or the backward end of the rod 8a of the cylinder 8,
It is assumed that the transar 5 determines that the work W is located on the tables 4a, 4b ... For entering and leaving the respective processing devices.

The transer 5 integrally attached to the shaft 6 is
At both reciprocating ends of the cylinder 8, a posture changing mechanism 9 described below swings from a horizontal position to an oblique position or from an oblique position to a horizontal position. As shown in FIG. 3, the posture changing mechanism 9 has a horizontal rod 11 parallel to the shaft 6 via a stay 10 at a predetermined position of the shaft 6, and a substantially L-shaped stay 12 vertically from the machine base 7. Then
A cylinder 13 is supported on the stay 12 via a bracket 15 by a support shaft 14
Securely swing around. To the rod end of the cylinder 13, a housing 17 having a notch in the left direction, in which a pair of upper and lower rollers 18a, 18b is axially supported, is attached. The pair of upper and lower rollers 18a, 18b are formed such that their roller sliding surfaces follow the outer peripheral surface of the horizontal rod 11, and the pair of upper and lower rollers 18a, 18b sandwich the horizontal rod 11. The stay 10 passes through the notch and connects the horizontal rod 11 and the shaft 6. Then, by extending the rod of the cylinder 13,
The member of the posture changing mechanism 9 operates like a chain double-dashed line to swing the transducer 5 from the horizontal position to the oblique position or from the oblique position to the horizontal position.

Next, the positioning stopper of the carrying device will be described with reference to FIG.

Since cutting oil is used in the sprue cutting device U, the cutting oil adheres to the work W. Therefore, the work W is rail 1,
2 becomes extremely easy to slide on, so in the port deburring press P, which is the next-stage processing device, the stopper device B shown in FIG.
The inertial force and the impact force of the workpiece W pushed by the transer 5 and sliding on the top are absorbed, and the positioning is accurately stopped before the port deburring press P.

That is, in the stopper device B, a horizontal plate-like stopper portion 20 that crosses the transport rails 1 and 2 and contacts the front end of the work W on the rails 1 and 2, and the base portion of the stopper portion 20 are bound together. It is divided into two by a holder portion 21 extending outside the transport rail 1. An elastic material such as rubber is used as the material of the stopper portion 20. The holder part 21 is provided with a fulcrum shaft 22 so as to be horizontally rotatable with respect to the machine base 7.
The leg portion 23 of the cylinder 24 is fixed to the machine base 7.
The rod 24a is rotatably supported by the connecting shaft 25 of the tip portion 24b.
Therefore, the reciprocating motion of the cylinder 24 causes the stopper portion 20 and the holder portion 21 to move between the rails 1 and 2 about the fulcrum shaft 22.
It is adapted to be alternately converted into a position orthogonal to and a position parallel to.

According to this structure, the transfer device A moves the shaft 6 by the forward or backward movement of the rod 8a of the cylinder 8, and moves the transers 5 at the horizontal positions arranged on the shaft 6 at a predetermined pitch by a predetermined pitch. Then, the work W is pushed on the rails 1 and 2 by a predetermined pitch. After performing the above-mentioned feeding by the cylinder 8, the shaft 6 fixed to the base of the transducer 5 is swung by the cylinder 13 of the posture conversion mechanism 9 on one side to convert the transversal 5 from the horizontal direction to the oblique direction, and the cylinder 8 Then, the transer 5 is returned to the original position while keeping the oblique direction, and is swung from the oblique direction to the horizontal direction again, and the work in the preceding stage is again fed by a predetermined pitch.

As another embodiment, the transcer fixed to the shaft may be a claw that presses only the center of the work W, and the transvers may be tilted in the return direction and erected in the conveyance direction.

Next, as shown in FIG. 4, the stopper device B absorbs the inertial force and the impact force of the work W conveyed (sliding) by the elastic deformation of the rubber plate-shaped stopper portion 20,
After the collision, the shape of the stopper portion 20 is restored, the work W is pushed back to the opposite side in the transport direction, and the work W is pressed against the transvers 5, so that the positioning can be accurately stopped.

[Effect of device]

As described above, the transport device of the present invention has the following effects.

(1) An inexpensive transfer device with a simple structure that saves space and has good transfer efficiency.

(2) Since the rail on which the work moves has the guide of the convex portion that movably fits into the concave portion of the work, the transfer device can prevent the deviation of the work.

(3) It serves as a positioning stopper for the transfer device, which can absorb the impact force and inertial force of the transferred work and accurately stop the positioning of the work.

[Brief description of drawings]

FIG. 1 is a plan view showing a series of automatic processing lines for processing a cast work, FIG. 2 is a side view showing a relationship between a rail and a work, and FIG. 3 is a sectional side view showing a posture control mechanism of a transer. , FIG. 4 is an explanatory plan view of the positioning stopper. A: Transport device, B: Stopper device W: Work 1, 2 ... Rail, 1 '... Guide 4a, 4b, 4c, 4d, 4e, 4f ... Table 5 ... Transor, 6 ... Shaft 8 ... Cylinder, 9 ... Posture change mechanism 10 ... Stay, 11 ... Horizontal rod 12 ... Stay, 13 ... Cylinder 14 ... Spindle, 17 ... Housing 20 ... Stopper part, 21 ... Holder Part 22 …… fulcrum shaft, 23 …… leg 24 …… cylinder, 25 …… connecting shaft

Claims (1)

[Scope of utility model registration request] 1. A rail (1, 2) on which an upper surface of a work (W) is movable, a shaft (6) provided on a side of the rail (1, 2) and extending parallel to the rail, and this shaft. Transers that are provided at predetermined pitches to push the work,
Cylinder (8) to reciprocate this transor by a predetermined pitch
And a posture changing mechanism (9) for swinging and holding the transor in a horizontal or oblique direction, in a concave portion provided in the rail (1, 2) and formed in the work (W). A convex guide (1 ') movably fitted to (J) and a stopper portion (20) provided on the rail side so as to be retractable and in contact with the work (W) are made of an elastic material. , At least one positioning stopper device (B) that pushes the work back to the opposite side in the transport direction by the restoring force of the elastic material when the work comes into contact with the stopper portion, and presses it against the transducer (5) to position the work. )
And a carrier device.