JP3556566B2 - Work holding device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a work holding holding device for holding a work to be subjected to surface treatment such as anodic oxidation and electrodeposition coating while holding the work on a transfer frame.
[0002]
[Prior art]
In order to improve the productivity of various batch-type surface treatment apparatuses, it is necessary to carry out surface treatment for a predetermined time in a surface treatment tank while transporting a large amount of workpieces to be subjected to surface treatment at a time.
[0003]
In FIG. 3, when an anodizing treatment is performed on a work W made of, for example, an aluminum sash in an electrolytic treatment tank (not shown), a large number of works W are held on a transfer frame (electrolytic frame) 10 via a holding jig 30. It is immersed between the electrodes in the electrolytic treatment liquid Q. The same applies to the work W made of an aluminum plate shown in FIG.
[0004]
Here, the holding jig 30 is, for example, a holding structure including a jig main body, a holding piece, a holding spring, and a holding release operation lever, and the base end side thereof is formed so as to be fixedly attached to the transfer frame 10 with the bolt 24. ing. Note that at least the holding portion is made of a conductive material.
[0005]
The work W is attached to the transfer frame 10 by using the holding jig 30 by applying a forced external force against the urging force of the holding spring to the holding release operation lever, thereby turning the holding piece around the support shaft, for example. The workpiece W is released by being moved, and the workpiece W is inserted in this released state. Thereafter, by removing the forced external force from the clamping release operation lever by hand or the like, the clamping piece is returned by the urging force of the clamping spring and can clamp the work W.
[0006]
Thus, the number of the holding jigs 30 and the mounting pitch P to be mounted on the transfer frame 10 are determined in consideration of the size, weight, shape (elongated object, plate object, etc.) of the workpiece W to be surface-treated. And it is common to be attached and detached in such a manner. The mounting pitch is (P) for the work (aluminum sash) W in FIG. 3 and the mounting pitch (4P) for the work (aluminum plate) W in FIG.
[0007]
However, for example, when the mounting (holding) pitch (4P) shown in FIG. 4 is sufficient, it is not allowed to keep the holding pitch (P) shown in FIG. 3 just because the number is sufficient. This is because, when the aluminum plate (W) is attached, not only the extra two holding jigs 30 become a hindrance, but also there is a disadvantage that deterioration of the extra holding jigs 30 is accelerated.
[0008]
[Problems to be solved by the invention]
Therefore, in order to change from the state shown in FIG. 3 to the state shown in FIG. 4, two extra jigs 30 must be removed from the transport frame 10. Conversely, in order to change from the state shown in FIG. 4 to the state shown in FIG. 3, the middle two holding jigs 30 must be additionally attached to the transport frame 10. In a use mode in which the states of FIGS. 3 and 4 coexist in the longitudinal direction of the same transport frame 30, it takes more time to attach and detach the jig. In other words, the attaching and detaching work is complicated and requires a lot of labor. Not only does it take time, but it also results in higher product costs.
[0009]
Further, in recent years, as the diversification and differentiation of surface treatment targets and surface treatment qualities have intensified, the combination of the clamping (attaching) position and the number of clamping (attachment) points with respect to the work W has been diversified. There is a strong demand for quick and accurate attachment and detachment of the holding jig 30.
[0010]
Further, since there is a shortage of workers at a certain level capable of attaching and detaching a large number of the holding jigs 30 to the long and heavy transport frame 10 within a certain time and in a certain mounting state, it is possible to further facilitate the mounting and dismounting. It is more strongly required.
[0011]
That is, if the number of attachment / detachment of the holding jig 30 with respect to the transfer frame 30 and the number of attachment points (the number of work holding points) of the holding jig 30, that is, the holding pitch in the longitudinal direction of the transfer frame can be easily changed, the work efficiency and economic efficiency are greatly improved. I should be able to contribute.
[0012]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a simple-to-handle work-holding holding device capable of quickly and easily changing a work holding pitch in a longitudinal direction of a transfer frame.
[0013]
[Means for Solving the Problems]
Conventionally, regarding the change of the holding pitch of the work in the longitudinal direction of the transfer frame and the facilitation of the attaching / detaching operation, for example, a blade-shaped jig extending in the longitudinal direction of the transfer frame is interruptedly locked to a part of the work, Although a method of knitting a work with a rope is adopted, all of these methods impose a heavy burden on equipment economy and do not always improve workability.
[0014]
Therefore, an improvement in the attachment / detachment method (for example, a scratching method, a sliding method, or the like) using a holding jig that is simple in structure, low in cost, and easy to handle has been proposed. It is difficult to establish the pitch and maintain a stable work, and there is much room for improvement, but no concrete measures have been found yet.
[0015]
The present invention employs a holding jig while forming a high-level conceptual holding jig from a first holding jig for directly holding a work and a second holding jig for directly attaching to a transfer frame, and performing a holding operation. In addition to dividing the work into two, the first holding jig is held by the second holding jig so that the holding pitch of the work with respect to the transport frame can be selectively changed.
[0016]
In other words, the invention of claim 1 is a work holding holding device for holding a work to be surface-treated on a transfer frame while holding the work, wherein a first holding jig capable of holding the work on a front end side, A second holding jig formed so that the base side of the first holding jig can be held at the side and the base end can be attached to the transfer frame, and a plurality of first holding jigs are provided. A holding device for holding a work, wherein a holding pitch of the held work in a longitudinal direction of the transfer frame is changeable by selecting a combination number of a first holding jig and a second holding jig.
[0017]
In this invention, a plurality of second holding jigs are attached to the transport frame. The base end is attached to the transport frame by bolting or the like. On the other hand, one (or two) or more workpieces are held by one (or two) or more first holding jigs. Thus, the transport frame and the work are both set in a predetermined posture (for example, in a horizontal position), and each of the first holding jigs (base end side) is automatically or manually held by one or more second holding jigs. . That is, a plurality of works can be held on the transport frame at the selected holding pitch via the first and second holding jigs.
[0018]
Therefore, the holding pitch of the work in the longitudinal direction of the transfer frame can be changed quickly and easily, handling is simple, work safety can be secured, and work efficiency can be improved. In addition, it can be applied to intensifying surface treatment targets and diversification and differentiation of surface treatment quality, and even in the case of a use mode in which different holding pitches are mixed in the longitudinal direction of the same transport frame, and as a result, product cost Because it can be reduced, it can also greatly contribute to improving economic efficiency.
[0019]
According to a second aspect of the present invention, there is provided a relay member having a base-side clamped portion and a distal-end mounting portion, and the clamped portion of the relay member is formed so as to be clamped by the second clamping jig. In addition, the holding portion is a work holding holding device formed such that the first holding jig can be attached thereto.
[0020]
In this invention, the work is held by the first holding jig at the mounting portion on the distal end side of the relay member, and is attached to the transport frame via the holding portion on the base end side and the first holding jig holding the holding portion. Therefore, in addition to providing the same operation and effect as the case of the first aspect of the present invention, the distance between the transfer frame and the work can be adjusted by the length of the relay member. The structure of the holding jig has a high degree of freedom in selecting the structure, and it is easy to avoid interference between the opening and holding operations. Furthermore, the degree of freedom in selecting the number of the first holding jigs attached to the second holding jigs can be increased.
[0021]
The invention according to claim 3 is a work holding holding device in which the relay member has one held portion and a plurality of the attachment portions.
[0022]
In this invention, different (or the same) works can be held by the first holding jigs attached to the plurality of attachment portions. That is, one or more works can be held by one relay member, and a plurality of works can be held by the transport frame via one relay member. Therefore, in addition to providing the same operation and effect as the case of the invention of claim 2, more work can be held by the second holding jig, or the same number of work can be held more stably. be able to.
[0023]
Further, the invention according to claim 4 is such that the second holding jig can open the held portion of the relay member by an external force applied in a state where the transport frame is lying down and can hold the relay member when the external force is removed. It is a holding device for holding the formed work.
[0024]
In this invention, for example, a work in a sideways position is held by the first holding jig attached to the distal end side attachment portion of the relay member. On the other hand, an external force is applied to a second holding jig (for example, a holding / opening operation lever) attached to the transport frame in the sideways state to open the jig and maintain the open state.
[0025]
After the relay member or the transfer frame is moved in the horizontal direction as necessary, the base-side held portion of the relay member is positioned on the second holding jig in the open state. When the external force is removed after the positioning, the second holding member holds the relay member (first holding jig) by, for example, the urging force of a spring.
[0026]
Therefore, in addition to providing the same operation and effect as in each of the second and third aspects of the present invention, the second clamping jig is automatically opened and clamped to automatically clamp the work on the transfer frame. Since it can be opened, the work efficiency can be greatly improved and the surface treatment cost can be reduced.
[0027]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0028]
As shown in FIGS. 1 to 3, the work holding holding device uses a holding jig as in the case of the conventional example (FIGS. 3 and 4) and has a distal end side (35). The first clamping jig 30 capable of clamping the workpiece W with the first clamping jig 30 and the proximal end [31 (22)] of the first clamping jig 30 on the distal end side (53, 57) and having the proximal end (42). ) Has a second holding jig 50 formed so as to be attachable to the transfer frame 10, and a holding pitch (in the longitudinal direction of the transfer frame 10 of the work W held between the plurality of first holding jigs 30). P) can be changed by selecting the number of combinations of the first holding jig 30 and the second holding jig 50.
[0029]
Parts common to those in the conventional example (FIGS. 3 and 4) are denoted by the same reference numerals, and description thereof will be simplified or omitted.
[0030]
In FIG. 1, the transfer frame 10 is a horizontally long member made of an aluminum alloy and has a built-in partial structure 15 of the transfer means, as shown in FIG. That is, it is formed so that the horizontal relative position with respect to the work W can be adjusted in the sideways state.
[0031]
The first holding jig 30 includes a jig body (a base end side of the first holding jig) 31, a holding piece 35 that is rotatable on the jig body 31 via a support shaft 34, and a support shaft. A holding release operation lever 33 rotatably mounted via the pin 32 and a holding spring 36 are formed so that the work W can be held on the distal end side (holding piece 35).
[0032]
That is, in a normal state, the gripping release operation lever 33 is in a state of being flipped up by the biasing force of the gripping spring 36 (a state in which the gripping release operation lever 33 is biased in the counterclockwise direction around the support shaft 32 in FIG. 1). The jaw piece 35 provided with the knurls is pressed against the jaw surface 37.
[0033]
Accordingly, when an external force having a magnitude against the urging force of the holding spring 36 is applied and the holding release operation lever 33 is automatically or manually gripped, the holding piece 35 is separated from the holding surface 37, that is, is released.
[0034]
In this open state, a part of the work W is automatically or manually inserted between the holding piece 35 and the holding surface 37. Then, when the external force is removed from the clamping release operation lever 33, the work W can be clamped by the first clamping jig 30.
[0035]
The first holding jig 30 is not directly attached to the transport frame 10 with the bolt 24 but is attached via the relay member 20 and the attachment member 40.
[0036]
The relay member 20 includes a relay member main body 21, and a held portion 22 that substantially forms the base end (31) of the first holding jig 30 in a flange shape on the upper side of the relay member main body 21. , And a lower end side mounting portion 23 for mounting the first holding jig 30 (the jig main body 31) with bolts 24. That is, the holding portion 22 on the base end side is formed so as to be able to be held by the second holding jig 50, and the mounting portion 23 is formed so that the first holding jig 30 can be attached.
[0037]
Further, the relay member 20 has one held portion 22 and a plurality of attachment portions 23. FIG. 2 (B) shows that a plurality of (three) mounting portions 23 (relay member main body portions 21) are integrally formed at one predetermined holding pitch (3P) with one horizontally long (6P or more) holding portion 22 made of a conductive material. FIG. 2 (C) shows a plurality of (seven) mounting portions 23 (for each predetermined holding pitch (P)) in one horizontally long (6P or more) holding portion 22 made of a conductive material. The case where the relay member main body 21) is integrally formed is shown.
[0038]
The second holding jig 50 is constructed such that a jig main body 55 having a fixed hook 57 on the distal end side (lower end side) shown in FIG. And a link mechanism 51 having a plurality of link bars and an opening / closing link 52 urged by a spring (not shown). When an external force is applied against the urging force of the spring, the opening / closing link 52 (movable hook) is formed. 53) can be opened as shown by the two-dot chain line in FIG. 1 and closed as shown by the solid line by removing external force, and the movable hook 53 closes the clamped portion 22 (the first clamping jig 30) of the relay member 20. ) Can be clamped.
[0039]
The mounting member 40 includes a mounting member main body 41, a base end 42 that is an upper portion of the mounting member main body 41 and substantially forms a base end side of the second holding jig 50, and a lower distal end. The base end 42 is detachable from the transport frame 10 shown in FIG. The second holding jig 50 (55) is attached to the attachment member main body 41 via the power supply bar 45.
[0040]
2A, mounting members 40 (mounting member body 41) are mounted and fixed at predetermined pitches (5P) with bolts 48. In this state, that is, by using the second holding jig 50, the three first holding jigs shown in FIG. The tool 30, the seven first holding jigs 30 shown in FIG. 2C, or a combination thereof can be attached to the transport frame 10, and the relay member 20 (relay member main body 21) can be attached. If it goes through, it can be attached in various forms.
[0041]
In the embodiment having such a configuration, for example, as shown in FIG. 2A, a plurality (six) of second holding jigs 40 are attached to the transport frame 10 using bolts 48. On the other hand, as shown in FIG. 2B, one work (aluminum plate) W is held by a plurality of (three) first holding jigs 30. Similarly, a plurality of (seven) works (aluminum sashes) W are held by a plurality of (seven) first holding jigs 30 as shown in FIG.
[0042]
Thus, the transport frame 10 and the workpiece W are both set in a predetermined posture (side down state), and one (or two) or more first holding jigs (base end) 30 are moved to one (or two) or more second holding jigs (base end side). It is understood that the holding jig 50 can be automatically (or manually) held. That is, the plurality of works W can be held at the selected pitch by the transfer frame 10 via the first and second holding jigs 30 and 50.
[0043]
Therefore, the holding pitch (P, 2P, 3P,... NP) of the work W in the longitudinal direction of the transfer frame 10 can be changed quickly and easily, handling is simple, work safety can be secured, and work efficiency can be improved. I can do it. Moreover, it can be applied to increasingly diversified and differentiated surface treatment targets and surface treatment qualities, and can be used even in the case of a use mode in which different holding pitches are mixed in the longitudinal direction of the same transport frame, and as a result, product cost is reduced. Therefore, it can greatly contribute to improvement of economic efficiency.
[0044]
Moreover, the work W is held by the first holding jig 30 at the distal end mounting portion 23 of the relay member 20 and is transported via the base holding portion 22 and the first holding jig 50 holding the holding frame 22. 10 is attached. Therefore, the distance between the transfer frame 10 and the work W can be adjusted by the length of the relay member 20, and the first and second holding jigs 30 and 50 have a wide degree of freedom in selecting the structure, and the opening / holding operation. It is easy to avoid interference. Further, the degree of freedom in selecting the number of the first holding jigs 30 to be attached to the second holding jigs 50 can be increased.
[0045]
Further, different (or the same) works W can be held by the first holding jigs 30 attached to the plurality of attachment portions 53 and 52. That is, one relay member 20 can hold one or two or more works W, and a plurality of works W can be held on the transport frame 10 via one relay member 20. That is, more works W can be held by the second holding jig 50, or the same number of works can be held more stably.
[0046]
Further, the first holding jig 30 attached to the distal end side attachment portion 23 of the relay member 20 holds the work W in the lying state, and the second holding jig attached to the transport frame 10 in the lying state. An external force is applied to the link member 50 (link mechanism 51) to open the jig 50 and maintain the open state. If necessary, the relay member 20 (or the transport frame 10) is moved in the horizontal direction. The base-side clamped portion 22 of 20 is positioned on the second clamping jig 50 (53, 57) in the open state. When the external force is removed after the positioning, the second holding member 50 holds the relay member 20 (the first holding jig 30). Therefore, the work W can be automatically held and released by the transfer frame by automatically opening and holding the second holding jig 50, so that the work efficiency can be greatly improved and the surface treatment cost can be reduced.
[0047]
Further, since the first holding jig 30 and the second holding jig 50 are formed so as to be capable of opening and closing by applying / removing an external force, handling is also easy from this point. Since the external force is applied and removed in the same direction, the automatic attachment and detachment can be further simplified.
[0048]
【The invention's effect】
According to the first aspect of the present invention, the first holding jig capable of holding the work on the front end side, and the base end side of the first holding jig can be held on the front end side and the base end is attached to the transfer frame. A second holding jig formed so as to be able to hold the work held by the plurality of first holding jigs in the longitudinal direction of the transfer frame in the first holding jig and the second holding jig. Work holding clamping device that can be changed by selecting the number of jig combinations allows quick and easy change of the work holding pitch in the longitudinal direction of the transfer frame, easy handling, and safe operation. Can be secured and work efficiency can be improved. Moreover, it can be applied to increasingly diversified and differentiated surface treatment targets and surface treatment qualities, and can be used even in the case of a use mode in which different holding pitches are mixed in the longitudinal direction of the same transport frame, and as a result, product cost is reduced. Therefore, it can greatly contribute to improvement of economic efficiency.
[0049]
According to the second aspect of the present invention, there is provided a relay member having a base-side clamped portion and a distal-side mounting portion, and the clamped portion of the relay member is formed so as to be clamped by the second clamping jig. Since the mounting portion is formed so that the first holding jig can be mounted, the same effect as that of the invention of claim 1 can be obtained, and further, the distance between the transfer frame and the work is relayed. Since the adjustment can be made by the length of the member, the first and second holding jigs have a wide degree of freedom in selecting the structure, and it is easy to avoid interference between the opening and holding operations. Furthermore, the degree of freedom in selecting the number of the first holding jigs attached to the second holding jigs can be increased.
[0050]
Further, according to the third aspect of the present invention, since the relay member has one held portion and a plurality of attachment portions, the same effect as that of the second aspect of the invention can be obtained. A large number of works can be held by the holding jig, or the same number of works can be held more stably.
[0051]
Further, according to the invention of claim 4, the second holding jig is formed so that the held portion of the relay member can be opened by the external force applied in the state where the transport frame is lying down and can be held when the external force is removed. Therefore, in addition to providing the same effects as in the case of each of the inventions of claims 2 and 3, in addition, the second clamping jig is automatically opened and clamped to automatically move the work to the transfer frame. Since it can be pinched and released, work efficiency can be greatly improved and surface treatment costs can be reduced.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of the present invention.
FIG. 2 is also a front view.
FIG. 3 is a front view for explaining a conventional example (1).
FIG. 4 is a front view for explaining a conventional example (2).
[Explanation of symbols]
10 Conveyance frame 20 Relay member 21 Relay member main body 22 Nipped portion (base end of first holding jig)
23 mounting part 24 mounting bolt 30 first holding jig 31 jig body (base end side of first holding jig)
32 Support shaft 33 Holding release operation lever 34 Support shaft 35 Holding piece (tip side of first holding jig)
36 Holding spring 37 Holding surface 40 Mounting member 41 Mounting member main body 42 Base end (the base end side of the second holding jig)
43 tip 45 power supply bar 50 second holding jig 51 link mechanism 52 opening / closing link 53 movable hook (tip side of second holding jig)
55 Jig body 56 Support shaft 57 Fixed hook (tip side of second holding jig)
W Work

Claims (4)

A work holding holding device for holding a work to be surface-treated on a transfer frame while holding the work,
A first holding jig capable of holding the work on the tip end side, and a second holding jig formed so that the base end of the first holding jig can be held on the tip end side and the base end side can be attached to the transfer frame. And a holding pitch in the longitudinal direction of the transfer frame of the work held by the plurality of first holding jigs, the number of combinations of the first holding jig and the second holding jig. A work holding holding device formed so as to be changeable by selection. A relay member having a base-side clamped portion and a distal-end-side mounting portion is provided, and the clamped portion of the relay member is formed so as to be clamped by the second clamping jig, and the mounting portion is the first clamped portion. The holding device for holding a work according to claim 1, wherein the holding device is formed so that a jig can be attached thereto. The holding device for holding a work according to claim 2, wherein the relay member has one holding portion and a plurality of the attachment portions. 3. The second holding jig is formed so as to be able to open the held portion of the relay member by an external force applied in a state where the transport frame is lying down and to be able to hold when the external force is removed. Item 4. A holding device for holding a work according to Item 3.

Images