JP3104037B2 - Synchronous moving transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synchronous transport system comprising a first transport means which continuously transports and moves, and a second transport means which engages with the first transport means and is driven by the first transport means. With respect to the mobile transport device, when the first transport means on the driven side does not disengage from the driven range of the second transport means on the driven side, only the engaging portion of the second transport means is disengaged. The present invention relates to a synchronous moving transport device provided with a safety means which breaks to break the engagement of both transport means and does not seriously damage the main bodies of both transport means.

[0002]

2. Description of the Related Art Conventionally, in an automobile assembly line, a main line continuously transports a vehicle body, and when a component is incorporated, a component is synchronously moved by using a synchronous moving transport device driven by a transport device of the main line. While being incorporated. The driven synchronously moving transfer device is driven by the main line transfer device as a driven-side transfer device, engages with the driven-side transfer device, engages in the driven-side transfer device, and synchronously transfers the driven device. When the operation is terminated, the engagement between the two is released, thereby terminating the driven operation.

[0003]

However, in the above-described conventional driven method, an abnormality occurs in either the driven side transport device or the driven side transport device, and the driven side transport device or If either of the driven transfer apparatuses does not perform the predetermined operation and does not disengage after passing the predetermined driven section, an abnormal load is applied to both of them, and the main bodies of both transfer apparatuses are seriously damaged. There was a problem of serious damage. SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and when an abnormality occurs in either the driven-side transport device or the driven-side transport device, it is possible to minimize damage to the engaging portion between the two. It is an object of the present invention to provide a synchronous transfer device that can be stopped.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a first transporting means for continuously moving and transporting the first transporting means, and the first transporting means in a predetermined section of a transporting path of the first transporting means.
A second transporting means which moves following the movement of the transporting means, wherein the second transporting means has an engaging projection attached to a part of the first transporting means and attached to a part of the second transporting means. The second transfer means is driven by the first transfer means by engaging with the engagement recessed portion.
The engaging concave portion of the conveying means is attached to the second conveying means main body via an intermediate member. When the engaging convex portion and the engaging concave portion are engaged with each other, an abnormal load is applied to the engaging concave portion. In this case, when the intermediate member is broken, the engaging recess is detached from the second conveying means main body.

[0005]

In the predetermined conveyance section, the engagement projection of the first conveyance means engages with the engagement recess of the second conveyance means, so that the second conveyance means is driven by the conveyance of the first conveyance means. Convey synchronously. In this way, an abnormality occurs in the control device that controls the operation of the first transport unit or the second transport unit during the synchronous movement transport, and the link between the first transport unit and the second transport unit even after the end position of the predetermined section. If they do not come apart, only the intermediate member of the engagement concave portion is broken, and the main bodies of both transporting means are not damaged.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of a synchronously moving and conveying device to which the present invention is applied, FIG.
FIG. 3 is a front view of the synchronous movement transfer device. The synchronous moving transport device includes a first transport unit 1 on a driven side and a second transport unit 2 on a driven side.

The first transporting means 1 to be driven is constituted by an overhead conveyor type transport hanger which transports along a rail 1b provided on a vehicle body transport line of an automobile by driving a driving motor 1a, and an arm extending downward. The receiving portion 1d at the lower end of 1c allows the vehicle body A to be transported along the rail 1b while being suspended. An engagement projection 1e that projects downward is provided at the lower end of the receiving portion 1d at one position of the arm 1c.
The second transporting means 2 on the driven side moves downward from the first transporting means 1 in a right angle direction in accordance with the traversing accumulator 4a provided on the floor 4 so as to be orthogonal to the rail 1b.

In the second transport means 2, the transport carriage 3 moves on the floor 4 while accumulating on the traverse accumulator 4a, and is provided with a lifting table 2a which is raised and lowered by a lifting cylinder 3a. . A pair of slide rails 2b provided in the same direction as the rail 1b of the first transfer means 1 is provided on the lifting table 2a on the upper surface of the transfer carriage 3. A U-shaped slider 2c is fitted to the slide rail 2b, and is slidable in the direction of the rail 1b of the first transport means.

FIG. 4 is an enlarged front view of the second transfer device, and shows a state where the second transfer device is driven by the first transfer means. A slide rail 2b is provided on a lift table 2a that is lifted and lowered by a lift cylinder 3a. A U-shaped slider 2c that slides leftward in the drawing according to the slide rail 2b.
And an engagement recess 2d is attached to the slider 2c. When the lifting table 2a moves up, the moving engaging projection 1e of the first transporting means 1 is engaged with the engaging recess 2d of the second transporting means. When the engaging projection 1e and the engaging recess 2d are engaged, the slider 2c of the second conveying means slides to the left in the drawing according to the slide rail 2b following the movement of the first conveying means (moving direction is changed). (Indicated by an arrow in the figure), the following movement is continued for a predetermined section, and after the predetermined section, the elevating table 2a is lowered downward, the engagement between the engaging projection 1e and the engaging recess 2d is released, and the following is released. .

In the case where an exhaust pipe is mounted on the body of an automobile by the above-mentioned synchronous moving transfer device, an exhaust pipe supply device 5 (see FIGS. 1 and 2) is provided. The exhaust pipe supply device 5 takes out and holds the exhaust pipe B stored in the exhaust pipe storage trolley 6 (see FIGS. 1 and 2) at a position off the line of the rail 1b of the first transport means. When the second transport means 2 is located at a lower position, the exhaust pipe B is mounted on the slider 2c. The second transporting means 2 on which the exhaust pipe B is placed is moved by the transverse accumulator 4a (FIG. 1,
According to FIG. 2), it moves below the first transporting means and holds it below the vehicle body A to be mounted. When the elevating table 2a of the second conveying means 2 is raised, the engaging concave portion 2d of the second conveying means 2 engages with the engaging projection 1e of the first conveying means 1, and the slider 2c of the second conveying means 2 Slides and follows the movement of the first transport means 1 while holding the exhaust pipe, so that the operator can attach the exhaust pipe B under the floor of the vehicle body while following the movement of the first transport means.

5 to 7 are enlarged views of the engaging recess 2d, FIG. 5 is a plan view of the engaging recess, FIG. 6 is a front view showing a partial sectional view, and FIG. 7 is a side view. . The engaging recess 2d is composed of a hook 7 and a moving claw 8, and is bolted to a frame 9 attached to the slider 2c via a bakelite (registered trademark, hereinafter the same) member 10 as a cylindrical intermediate member. At 10a, it is attached to the second conveying means main body. The movable claw 8 has an inclined portion 8a formed at the tip, and when the engagement protrusion 1e abuts, moves laterally and is received by the hook 7. Here, the bakelite member 10 is a material manufactured by mixing paper and a synthetic resin and compressing the same, and is a material that breaks when a load of a certain degree or more is applied.

Therefore, the engaging projection 1 of the first transporting means 1
e engages with the engaging recess 2d of the second transport means, and the second transport means 2 is driven for a predetermined section. However, an abnormality occurs in any of the control devices, and the predetermined section is not released in a state where the engagement between the two is not released. In the case where the bakelite member 10 exceeds the second position, the bakelite member 10 as an intermediate member is broken as shown by a two-dot chain line in FIG.
Detach from the transport means body. As described above, when an abnormal load is applied to the engagement portion, the bakelite member is broken, so that no abnormal load is applied to the other main body structure portions of the both transporting means, and no damage is caused. In the above embodiment, the intermediate member is described as the bakelite member 10 formed by mixing paper and synthetic resin. However, the intermediate member is not limited to this as long as it breaks when a certain load or more is applied. Is also good.

[0013]

According to the synchronous moving conveyance device of the present invention,
When the driven second transporting means is engaged with and driven by the driven first transporting means, an abnormality occurs in either of the control devices, and the driven travels in the predetermined section. Even if it exceeds, if the engagement between the two is not released, only the intermediate member of the engagement portion is damaged, so that no serious damage is caused to the main body of the both transporting means. Therefore, even if an abnormality occurs, the transfer device can be repaired simply by replacing the inexpensive intermediate member, and the maintenance cost of the device, the work time required for repair, and the downtime of the device due to repair can be significantly reduced. It has the effect that can be done.

[Brief description of the drawings]

FIG. 1 is a plan view of a synchronous moving conveyance device of the present invention.

FIG. 2 is a side view of the synchronous moving conveyance device of the present invention.

FIG. 3 is a front view of the synchronous moving conveyance device of the present invention.

FIG. 4 is an enlarged front view of a second transport unit in the present invention.

FIG. 5 is an enlarged plan view of an engagement recess in the second transport means.

FIG. 6 is an enlarged partial cross-sectional side view of an engagement recess in the second transport means.

FIG. 7 is an enlarged side view of an engagement recess in the second transport means.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st conveyance means 1a Driving motor 1b Rail 1c Arm 1d Receiving part 1e Engagement convex part 2 2nd conveyance means 2a Elevating table 2b Slide rail 2c Slider 2d Engaging concave part 3 Carriage truck 3a Elevating cylinder 4 Floor 4a Traverse roller Reference Signs List 5 exhaust pipe supply device 6 exhaust pipe storage cart 7 hook 8 moving claw 8a inclined section 9 frame 10 bakelite member

Claims (1)

(57) [Claims] A first transporting means for continuously moving and transporting;
A second conveying means which moves in accordance with the movement of the first conveying means in a predetermined section of the conveying path of the first conveying means, wherein the second conveying means is attached to a part of the first conveying means. In the synchronous moving transport device, wherein the engaging convex portion engages with the engaging concave portion attached to a part of the second transport device so that the second transport device is driven by the first transport device. The engaging recess of the means is attached to the second conveying means main body via an intermediate member, and when the engaging protrusion and the engaging recess are engaged, an abnormal load is applied to the engaging recess. In this case, the intermediate member is broken and the engaging recess is detached from the second conveying means main body.