JP2000176796A - Attachment device and conveying carrier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an attachment device and a conveying carrier capable of positioning corresponding to various work shapes with comparatively simple constitution employing. SOLUTION: In the attachment device 20, movable attachments 26 installed on a frame 24 are projected to the opposite end of a base plate 22 from the receiving surface 24a of the frame 24 and are capable of being flexibly curved to meet a work load and also are juxaposed in a comb shape. A work mounted on the frame 24 is, therefore, mounted on the receiving surface 24a with flexibly curved on the declined parts 26b of the movable attachments 26. Thus, flexibly curving some of the movable attachments 26 juxaposed in the comb shape to meet the shape of the work eliminates the need for flexibly curving the other attachments 26. A state projected to the opposite end of the base plate 22 from the receiving surface 24a is retained. Thus, the movable attachments 26 retaining the projected state prevent the work from movement, allowing the positioning corresponding to various work shapes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an attachment device and a transport carrier, and more particularly to an attachment device interposed between a transport carrier for transporting a work and the work, and the transport carrier.

[0002]

2. Description of the Related Art Conventionally, when a workpiece is transported between or within various processes, the workpiece is mounted and moved on a tray or a trolley (hereinafter, these are collectively referred to as a “transport carrier”). In some cases, the transport carrier includes an attachment device that positions a workpiece to be placed on the transport carrier.
The difference between the tray and the cart is mainly in the presence or absence of wheels, and the tray does not have wheels.

[0003] Usually, the transport carrier is a kind of factory equipment, and therefore, an attachment device is often set so as to correspond to a plurality of types of workpiece shapes. For example, as shown in FIG. 5, an attachment device 90 provided at a predetermined position of the transport carrier 100 receives a side frame of the workpiece W1 by a receiving table 94 of a support portion 92, and thereby the workpiece W1 placed on the transport carrier 100 is received. Positioning is performed in the width direction. That is, as shown in FIG. 6A, in the work W1, the movement in the inward direction is restricted by the inner convex portions 94a of the left and right cradles 94, so that the movement of the work W1 in the width direction is prevented, and We are positioning. Further, by providing the outer convex portion 94b outside the left and right receiving pedestals 94, it is possible to regulate the outward movement of the work. Therefore, the positioning of the work W2 wider than the work W1 in the width direction is performed by the support. This can be performed by the outer convex portion 94b of the table 94 (FIG. 6B).
). Furthermore, the work side frame itself is the work W1
When the width of the workpiece W2 is wider than that of the workpiece W2 and is set to be substantially equal to the interval α between the inner convex portion 94a and the outer convex portion 94b, such positioning of the workpiece W3 can also be performed (FIG. 6 ( C)). In FIGS. 6A to 6C, W1 to W3 are shown in order to clarify their positional relationships.
Is hatched.

[0004]

However, according to the above-mentioned conventional attachment device 90, the support portion 92
The inner convex portion 94a and the outer convex portion 94b provided on the pedestal 94 are fixed to the pedestal 94, respectively, so that the movement in the width direction of the work can be restricted only at those fixed positions. However, it is not possible to cope with a work having a side frame wider than the interval α between the inner convex portion 94a and the outer convex portion 94b. That is, in the attachment device 90 in which the shape of the cradle 94 is fixed, the shape of the work that can be positioned is the work W1, W2.
, W3, etc., it is limited to some extent. Therefore, in order to cope with other works, the positions of the inner convex portion 94a and the outer convex portion 94b formed on the receiving table 94 are changed, that is, the attachment device 90 is remodeled. I have to change it. For this reason, depending on the shape of the workpiece to be transported, it is necessary to individually modify the attachment device 90 of the transport carrier 100. Therefore, for example, when the transport carrier 100 reaches several hundreds, each time the workpiece shape is changed. Attachment device 9
0 remodeling changes are required, and it takes a lot of effort,
The generation of time and money is problematic.

In order to solve such a problem, a “transfer hanger” disclosed in Utility Model Registration No. 2507101 has been devised. According to this transport hanger, the pins supported by the respective support portions of the transport hanger that supports the vehicle body and the like so as to be able to move up and down are arranged in a plurality of rows so as to be urged by a spring and protrude from the support surface. With this configuration, a part of these pins is pushed down in accordance with the shape of the work received by the support, while the movement of the work is prevented by the remaining pins that are not pushed down.

However, according to the configuration of the transport hanger disclosed in this publication, the pins arranged in a plurality of rows are each urged by a spring to maintain a projected state. In addition to the need to incorporate a spring every time, the structure becomes complicated, and if a failure occurs in this spring, the protruding state of the pin cannot be maintained and the movement of the work cannot be prevented.

Particularly, in the step of electrodepositing a work, it is necessary to immerse both the work and the carrier on which the work is placed in an electrodeposition tank filled with paint. In the configuration of the hanger, the paint that cannot be removed by washing adheres to the pin or the spring, which may hinder the normal operation of the pin. That is, since the residual paint can adhere adjacent pins by remaining paint between the pins arranged in the row state, the residual paint is pushed down as the adjacent pins are pushed down to the pins to maintain the protruding state. Inviting a situation. In addition, since the urging force of the spring is reduced by the paint adhered to the spring that maintains the pin in the protruding state, the pin cannot be maintained in a sufficiently protruding state. Therefore, from these situations, a case where a normal pin operation according to the shape of the work cannot be ensured may occur.

Accordingly, utility model registration 2507101
In the "transfer hanger" disclosed in the official gazette, a spring is incorporated for each pin, so that not only the structure becomes complicated, but also in a process in which paint or the like cannot be attached to the pin or the spring, the pin is used. This causes a problem that the work cannot be reliably performed on the transport carrier.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an attachment device and a transfer device which can be positioned in accordance with a variety of work shapes by a relatively simple structure. To provide a career. Another object of the present invention is to provide an attachment device and a transport carrier that can accurately position a work even in a process where paint or the like can adhere.

[0010]

In order to achieve the above object, according to the present invention, there is provided an attachment device which is mounted on a carrier for positioning and supporting a work, wherein the work can be placed thereon. Technical feature comprising: a support portion having a receiving surface; and a comb-shaped plate-shaped portion attached to the support portion, protruding from the receiving surface to the arrival side of the work, and being bent by a work load. And

Further, in the attachment device according to claim 2,
2. The support according to claim 1, wherein the plate-shaped portion has a curved portion at one end of which the workpiece abuts, an inclined portion located at an intermediate position from the curved portion to the other end, and a continuous portion from the inclined portion. And a vertical part attachable to the part.

Further, in the transport carrier according to the third aspect, the attachment device according to the first or second aspect is a transport carrier for transporting a work, at least at two positions corresponding to the longitudinal direction and the width direction of the work. Is a technical feature.

According to the first aspect of the present invention, the plate-like portion attached to the supporting portion having the receiving surface on which the work can be placed protrudes from the receiving surface to the arrival side of the work, and has a comb-like shape bent by the load of the work. Having. As a result, the work placed on the support portion is placed on the receiving surface while bending the plate-shaped portion, so that a part of the comb-shaped plate-shaped portion is bent according to the shape of the work. In this case, the other portion of the plate-shaped portion can be maintained in a state of being protruded from the receiving surface to the arrival side of the workpiece without bending.

According to the second aspect of the present invention, the plate-shaped portion has a curved portion at one end with which the workpiece comes into contact, and an inclined portion is located at an intermediate portion from the curved portion to the other end. Since it is configured by a relatively simple structure having a vertical portion that can be continuously attached to the support portion, it can be realized by a leaf spring without using a coil spring.

According to the third aspect of the present invention, the transport carrier is provided with attachment devices at at least two positions corresponding to the longitudinal direction and the width direction of the work, respectively. The movement in the width direction can be prevented.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the attachment device according to the present invention will be described below with reference to FIGS.
First, an attachment device 2 according to an embodiment of the present invention
The configuration of the tray 10 to which 0 is applied will be described with reference to FIG. As shown in FIG. 2, the tray 10 is provided with an underbody portion (hereinafter referred to as a "work"; an upper body portion is not shown) W of an automobile placed thereon and transported in the electrodeposition coating process. It mainly includes a front frame 12, a rear frame 13, a side frame 14, an intermediate frame 15, a center frame 16, a cup 18, and an attachment device 20. That is, the rectangular frame, which is the main shape, is formed by the front frame 12 and the rear frame 1.
3. A cup 18 which is constituted by the side end frame 14, the intermediate frame 15 and the center frame 16 and which is easily lifted by a hanger device 50 described later is disposed at a predetermined position of the side end frame 14. Further, each of two positions corresponding to the longitudinal direction and the width direction of the work W is interposed between the tray 10 that further conveys the work W and the member portion Wa and the cross member portion Wb that constitute the work W. Attachment devices 20 are provided at four locations (a total of four locations). Here, as will be described in detail below, since the attachment device 20 can prevent the mounted work W or the like from moving in a predetermined direction, the attachment devices 20 are arranged at four places of the tray 10 in this manner. By installing, the attachment device 2
0 supports the member Wa and the cross member Wb of the work W, so that the work W can be positioned on the tray 10.

Next, the configuration of the attachment device 20 will be described with reference to FIG. As shown in FIG. 1, the attachment device 20 mainly includes a base plate 22, a frame 24, and a movable attachment 26. The base plate 22 is made of a rectangular steel plate and has a structure that can be attached to a predetermined position of the tray 10 described above. That is, the holes 22a are formed at two places so as to be attached to the side end frame 14 and the intermediate frame 15 of the tray 10 by bolts (not shown), and have a sufficient space for fixing the frame 24 by welding. I have.

The frame 24 is made of a steel plate and formed in a column shape having a U-shaped cross section. The column 24 having the U-shaped cross section is formed by the frame 24.
This is to realize a structure capable of sufficiently withstanding a work W of about 100 kg on the top (receiving surface 24a) with a simple configuration. Therefore, the cross section is not limited to the U-shape, and may be formed in a column shape having a T-shape in cross section by two steel plates, for example. In addition, since a plurality of movable attachments 26 described below need to be arranged side by side inside the frame 24, a required number of movable attachments 26 are attached.
An opening interval having a U-shaped cross section is set. The frame 24 is fixed to the base plate 22 by welding so as to stand upright.

The movable attachment 26 is made of a spring steel plate, for example, JI.
S50C-CSP, SK5-CS specified in SG 4802
P, SUP10-SCP, etc.
6a, a vertical portion 26c on the other end side, and a plate shape having an inclined portion 26b in the middle. In other words, from the side,
It has a shape in which a front end of a letter-like shape is bent inward like a fishhook, and is formed to have a ribbon shape in a developed state, and its plate width is set to, for example, 10 mm to 15 mm. The curved portion 26a of the movable attachment 26 is
4, the opposite side of the base plate 22 from the receiving surface 24a,
That is, the vertical portion 26c is attached to the frame 24 so as to protrude toward the arrival side of the work W, and so that the curved portion 26a falls into the U-shaped cross section of the frame 24 when the inclined portion 26b is bent toward the base plate 22. It is fixed with bolts 28.

The reason why the curved portion 26a is formed at one end of the movable attachment 26 is that the workpiece W mounted on the frame 24 is moved while being in contact with the curved portion 26a.
This is because the workpiece 6 is pushed down by its own weight (in the direction of the base plate 22), and if the workpiece W comes into contact with a corner, the corner may damage the work W. Also, the vertical portion 26 on the other end side from the curved portion 26a
The reason why the predetermined angle β (for example, 45 degrees) is given to the inclined portion 26b extending toward c so as to form a U-shape is that the curved portion 26a is not positioned directly above the frame 24,
This is because the inclined portion 26b is provided so as to take a forwardly inclined posture in the bending direction of the bending portion 26a, so that the movable attachment 26 can be easily pushed down by the weight of the work W. Note that the plate width of the movable attachment 26 depends on the positioning accuracy required for the work W, and high precision is required in a process using an automated line. Therefore, the plate width of the movable attachment 26 is further reduced, for example, 5 mm to 10 mm. May be set to

The movable attachment 26 thus configured
Are arranged side by side in a comb shape inside the frame 24. That is, the movable attachment 26 is wider than the width of the member Wa of the work W placed on the frame 24.
Are arranged to be located. The distance between the adjacent movable attachments 26 is approximately 5 mm in thickness of the electrodeposited coating film.
It is set to about 1 mm to 2 mm in consideration of 0 μm.
As a result, even if paint may adhere to the movable attachment 26, the distance between the adjacent movable attachments 26 is set to be at least 10 times the sum of the coating thicknesses on both sides (about 100 μm). In addition, mutual adhesion by paint can be prevented.

Next, the operation of the attachment device 20 will be described with reference to FIGS. As shown in FIG. 2, when the work W descends from above the tray 10 by a transport device (not shown), the attachment unit 20 provided with the member Wa and the cross member Wb of the work W at four places of the tray 10. Are adjusted so as to be located above the respective positions. When the work W further descends, the respective member parts Wa and the cross member parts Wb eventually come into contact with the movable attachment 26 of the attachment device 20. Then, as shown in FIGS. 1 and 3, taking the member portion Wa as an example, the work load is sufficiently lowered so that the work load is applied to the curved portion 26a of the movable attachment 26y with which the member portion Wa is in contact. For this reason, the inclined portion 26b is bent, whereby the curved portion 26a is further pushed down. And the receiving surface 2 of the frame 24
The member part Wa is placed on 4a. At this time, for the movable attachment 26x that the member Wa does not contact,
Since there is no bending of the inclined portion 26b due to the work load, the curved portion 26a of the movable attachment 26x maintains a state in which the curved portion 26a projects beyond the receiving surface 24a of the frame 24 on the opposite side of the base plate 22. Therefore, the movable portion 26x that maintains the protruding state of the member Wa placed on the receiving surface 24a can prevent the movement of the member Wa in the width direction, that is, the movement of the work W in the width direction. .

As described above, the tray 10 capable of preventing the movement of the work W in the width direction by the attachment device 20 has the following features.
The work W is lifted up by a hanger device with the work W placed thereon, and is immersed in an electrodeposition tank in order to perform electrodeposition coating of the work W. That is, as shown in FIG. 4, the hanger device 50 configured by attaching the arm portion 54 that can be opened and closed to the left and right to the suspension portion 52 allows the four cups 18 of the tray 10 to be moved.
Is locked by the support arm 56 provided at the tip of the arm portion 54, thereby lifting the tray 10. And
By immersing the tray 10 lifted by the hanger device 50 together with the work W in an electrodeposition tank (not shown), the work W is in a so-called “dip-soaked” state. The coating material charged with a positive charge and filled in the electrodeposition tank is uniformly adsorbed on the surface of the substrate. Thereby, the electrodeposition coating of the work W is completed.

As described above, according to the attachment device 20 of the present embodiment, the movable attachment 26 attached to the frame 24 has the receiving surface 24 a of the frame 24.
And protrudes to the opposite side of the base plate 22, and is arranged in a comb-like shape so as to be bent by a work load. As a result, the work W placed on the frame 24 is placed on the receiving surface 24a while bending the inclined portion 26b of the movable attachment 26, so that the work W is arranged side by side in a comb-like shape according to the shape of the work W. As long as a part of the movable attachment 26 bends, the other movable attachment 26 can maintain a state protruding beyond the receiving surface 24a to the opposite side of the base plate 22 without bending. Therefore, the movement of the work W can be prevented by the movable attachment 26 that maintains the protruding state, and thus there is an effect that positioning can be performed in accordance with a variety of work shapes with a relatively simple structure.

The attachment device 2 of the present embodiment
0, the movable attachment 26 has a curved portion 26 at one end.
a, a relatively simple structure formed in a plate shape having a vertical portion 26c on the other end side and an inclined portion 26b in the middle can be realized by a spring steel plate without using a coil spring. it can. As a result, even when the tray 10 is used in the electrodeposition coating process and the paint may adhere to the movable attachment 26, the curved portion 26a protrudes to the opposite side of the base plate 22 by a simple configuration of a leaf spring. State can be maintained. Accordingly, there is an effect that the work W can be accurately positioned on the tray 10 even in an electrodeposition coating process or the like to which paint or the like can adhere.

Furthermore, according to the tray 10 of the present embodiment, the attachment devices 20 are provided at at least two positions corresponding to the longitudinal direction and the width direction of the work W, respectively. Movement in the width direction can be prevented regardless of the shape. Therefore, there is an effect that the work W can be positioned with a relatively simple structure in accordance with a variety of work shapes, and the work W can be accurately positioned on the tray 10 even in an electrodeposition coating process or the like to which paint or the like can adhere.

In this embodiment, the tray 10 for transferring the work W in the electrodeposition coating process has been described as an example.
The present invention is not limited to this, and it goes without saying that the same effect can be exerted on transport carriers in various processing steps as long as they are transport carriers that transport workpieces and the like.

[0028]

According to the first aspect of the present invention, the plate-like portion attached to the supporting portion having the receiving surface on which the work can be placed protrudes from the receiving surface to the arrival side of the work, and is bent by the load of the work. It has teeth. As a result, the work placed on the support portion is placed on the receiving surface while bending the plate-shaped portion, so that a part of the comb-shaped plate-shaped portion is bent according to the shape of the work. In this case, the other portion of the plate-shaped portion can be maintained in a state of being protruded from the receiving surface to the arrival side of the workpiece without bending. Therefore, the movement of the work can be prevented by the plate-like portion that maintains the state of protruding toward the arrival side of the work, and the relatively simple structure has an effect that positioning can be performed corresponding to various work shapes. is there.

According to the second aspect of the present invention, the plate-shaped portion has a curved portion at one end with which the work comes into contact, and an inclined portion is positioned at an intermediate portion from the curved portion to the other end. Since it is configured by a relatively simple structure having a vertical portion that can be continuously attached to the support portion, it can be realized by a leaf spring without using a coil spring. Therefore, for example, even if the transport carrier itself is used together with the work in the electrodeposition coating process which needs to be immersed in an electrodeposition tank filled with paint, even if the paint may adhere to the plate-shaped portion, it is supported. Since it is possible to maintain a state in which the work protrudes from the receiving surface of the portion to the arrival side of the work, there is an effect that the work can be accurately positioned even in a process where paint or the like can adhere.

According to the third aspect of the present invention, the transport carrier is provided with the attachment devices at at least two positions corresponding to the longitudinal direction and the width direction of the work, so that the shape of the work placed on the transport carrier is restricted. In addition, movement in the longitudinal direction or the width direction can be prevented. Therefore, there is an effect that positioning can be performed in accordance with a variety of work shapes with a relatively simple structure, and the work can be accurately positioned even in a process where paint or the like can adhere.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of an attachment device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a tray to which the attachment device according to the embodiment is applied.

FIG. 3 is a schematic explanatory view showing the operation of the attachment device according to the present embodiment.

FIG. 4 is a schematic diagram illustrating a state in which the transport carrier according to the present embodiment is transported by a hanger device.

FIG. 5 is an explanatory diagram showing a configuration of a conventional transport carrier and a positional relationship between a work and an attachment device.

FIG. 6 is an enlarged view of an alternate long and short dash line VI shown in FIG. 5, and FIG.
(C) show the positional relationship between the workpieces W1, W2, W3 and the attachment device, respectively.

[Explanation of symbols]

 Reference Signs List 10 tray (transport carrier) 20 attachment device 24 frame (supporting portion) 24a receiving surface 26 movable attachment (plate-like portion) 26a curved portion 26b inclined portion 26c vertical portion W work Wa member portion (work) Wb cross member portion (work)

Claims (3)

[Claims] 1. An attachment device installed on a transport carrier for positioning and supporting a work, comprising: a support portion having a receiving surface on which the work can be placed; And a comb-shaped plate-shaped portion that protrudes toward the arrival side of the work and is bent by a work load. 2. The plate-shaped portion includes a curved portion at one end of which the workpiece abuts, an inclined portion located at an intermediate position from the curved portion to the other end, and the supporting portion continuously from the inclined portion. The attachment device according to claim 1, further comprising a vertical portion attachable to the portion. 3. A transport carrier for transporting a workpiece, the transport carrier comprising the attachment device according to claim 1 or 2 at at least two positions corresponding to a longitudinal direction and a width direction of the workpiece.