JP2003071651A - Casing assembling fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixture capable of accurately and easily positioning and holding attitude of front and back side plates with respect to a base member in assembling a sheet metal-made casing. SOLUTION: This fixture 1 for assembling of a casing 2 comprises the front side plate and the back side plate made of sheet metal, a suspending member suspended between the front and back plates, and a base member for supporting the front and back plates. The fixture has a base holding part 12 for holding the base member 22 and side plate holding parts 13 and 14 that are disposed in parallel on the base holding part 12, hold each side plate in an attitude substantially orthogonal to the base member 22, and hold a stay in an suspended state between the front and back plates. The side plate holding part 13 for holding the front side plate is disposed on the base holding part 12 slidably, and the front side plate, the back side plate, and the stay can be joined to each other while the base holding part 12 and the side plate holding parts 13 and 14 hold the base member, the front side plate, and the back side plate.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front side plate and a rear side plate formed of sheet metal, a suspension member suspended on these both side plates,
And a jig for assembling a housing composed of a base member that is joined to the lower portions of the both side plates and supports the both side plates.

[0002]

2. Description of the Related Art As a frame body for an image forming apparatus,
A case in which square hollow pipes (hereinafter referred to as square pipes) are assembled is used, but in order to reduce the manufacturing cost, sheet metal stamped by stamping was assembled as front and rear side plates. A housing has been proposed. The assembly of this sheet-metal housing is performed by positioning the side plates of the front and rear surfaces orthogonal to the base member, joining the lower portions of the side plates of the front and rear surfaces to the base member, and further joining both sides to the base member. This is done by joining suspension members between the plates.

[0003]

However, when assembling the sheet metal casing as described above, the work of positioning the front and rear side plates with respect to the base member, and the work of holding the front and rear side plates in a posture orthogonal to the base member. , And the work of positioning the suspension member on the front and rear side plates is troublesome. Also, the posture of the front and rear side plates with respect to the base member is incorrect,
If the positioning of the front and rear side plates with respect to the base member and the positioning of the suspension member with respect to the front and rear side plates are incorrect, the strength of the joint portion of each member becomes insufficient. This causes a problem that the side plates on the front and rear surfaces, which are the base body of the housing, are likely to be bent (distorted), and the positional accuracy of the internal equipment provided in the housing cannot be maintained due to the influence of distortion or the like.

The present invention has been made in order to solve such a problem, and when assembling a sheet metal housing, the front and rear side plates are positioned with respect to the base member and the front and rear side plates are positioned with respect to the base member. An object is to provide a jig that can be held accurately and easily.

[0005]

In order to achieve the above object, the invention described in claim 1 is a front side plate formed of sheet metal,
A jig for assembling a housing having a rear side plate, a suspension member suspended on both side plates, and a base member joined to a lower portion of the both side plates to support the both side plates and holding the base member. A state in which the base holding portion is arranged in parallel on the base holding portion for each side plate, the side plate is held in a posture substantially orthogonal to the base member, and the suspension member is suspended between the front and rear side plates. And a side plate holding part for holding at least one of the side plates is provided slidably on the base holding part, and the base holding part and the side plate holding part are the front and rear parts. The front and rear side plates, the suspension member, and the base member are configured to be held at positions avoiding the joining points of the side plate, the suspension member, and the base member.

According to this structure, since the front and rear side plates are held by the side plate holding portion in a posture substantially orthogonal to the base member held by the base holding portion, the posture of the front and rear side plates can be easily held with respect to the base member. Can be done accurately. Further, since the side plate holding portion is slidably movable with respect to the base holding portion, the front and rear side plates can be easily positioned with respect to the base member. This allows
Each member can be joined accurately, and the strength of the joined portion of each member can be improved.

The invention described in claim 2 is the same as claim 1
The jig for housing assembly according to claim 1, wherein a long member is sandwiched between the side plate holding parts arranged in parallel and fixed in the vicinity of the upper end of the side plate holding part. It is configured so that work can be performed.

According to this structure, the elongate member secures the vicinity of the upper end portions of the both side plate holding portions arranged side by side on the base holding portion, so that the distance between the upper end portions is constant. Since it is maintained, the side plate holding part on the base holding part is less shaken, and the posture of the side plate holding part is stabilized.
Accordingly, the posture of the side plate holding portion on the base holding portion can be stabilized without downsizing the installation area of the side plate holding portion on the base holding portion, and downsizing of the jig can be achieved.

The invention described in claim 3 is the same as claim 1
Or it is the housing assembly jig of Claim 2, Comprising: The said side plate holding part is provided with the protrusion part in the surface facing the said side plate, and the hole part formed in the said side plate has the said protrusion part. The side plate is positioned in the side plate holding portion by being fitted to.

According to this structure, the side plate can be positioned with respect to the side plate holding portion simply and accurately by fitting the hole of the side plate into the protruding portion of the side plate holding portion.

The invention described in claim 4 is the same as claim 1.
The housing assembly jig according to claim 3, wherein the side plate holding portion is provided with a protrusion on a surface facing the suspension member, and the protrusion includes the side plate and the side plate. The suspension member is positioned on the side plate by fitting the hole formed in the suspension member.

According to this structure, by fitting the side plate and the hole of the suspension member in the protruding portion of the side plate holding portion, the suspension member can be positioned with respect to the side plate easily and accurately.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION A case assembly jig according to an embodiment of the present invention will be described below with reference to the drawings. 1 is a perspective view showing a housing assembly jig according to the present invention, FIG.
Is a perspective view showing a housing assembled by the jig,
3 is a front view of the jig, FIG. 4 is a right side view of the jig,
FIG. 5 is a plan view of the jig.

A case assembly jig (hereinafter referred to as a jig) 1 of the present invention is for assembling a case 2 which is a frame of an image forming apparatus such as a copying machine or a printer.
Is mainly formed by joining members made of sheet metal.

The housing 2 has a base member 22 as a base.
And a front side plate 23, which is joined to the base member 22 in a vertical state and whose lower portion is supported by the base member 22, and the front side plate 2
3 in a state of being juxtaposed with each other, a rear side plate 24 which is attached to the base member 22 in a vertical state and whose lower portion is supported by the base member 22, and further includes a front side plate 23 and a rear side plate 24.
The upper plate member 25 joined to the upper part of the plate so as to be suspended between the side plates 23, 24, the front plate 23 and the rear plate 2
4, the stays (suspension members) 261, 262, 263 are joined to the upper part and the substantially central part of the No. 4 so as to be suspended between the front side plate 23 and the rear side plate 24. The front side plate 3 and the rear side plate 4 are made of sheet metal, and the upper portion, the lower portion, and the side portions are bent in the front direction at an angle of about 90 degrees to form a joint margin 231,
232, 233, 234, 241 and 244 are formed. These front side plate 23, rear side plate 24, base member 2
2 and the stays 261, 262, 263 are welded at a position indicated by a welding point P in FIG.

The jig 1 mainly includes a base holding portion 12 for holding the base member 22, a side plate holding portion 13 for holding the front side plate 23 in a posture substantially orthogonal to the base member 22, and a rear side plate 2.
4 and a side plate holding portion 14 that holds the base member 4 in a posture substantially orthogonal to the base member 22. The side plate holding portions 13 and 14 are arranged on the base holding portion 12 in a state of being arranged in parallel with each other, and the stay 263 is connected to the front side plate 23 and the rear side plate 24.
It is possible to hold it suspended between the two. The side plate holding portion 13 is slidably provided on the base holding portion 12.

Base holding portion 12 and side plate holding portions 13 and 1
4 is a state in which the base member 22, the front side plate 23, and the rear side plate 24 are positioned, so that the front side plate 23, the rear side plate 24, and the stays 261, 262, 263 can be joined together without any problem in the joining work. In the position, the base member 22, the front side plate 23, the rear side plate 24, and the stay 26.
1, 262, 263 are held.

The base holding portion 12 holds the base member 22 placed thereon in a substantially horizontal posture.
A plurality of base member mounting portions 121 that contact the lower surface of the base member 22 and support the base member 22 are provided.

The side plate holding portion 13 is in contact with the front side plate 23 to support the posture of the front side plate 23.
And a plurality of hold portions 132 for fixing the front side plate 23 to the side plate support member 131, and a plurality of hold parts 132 joined to the lower part of the side plate support member 131 so as to be slidably movable in the horizontal direction.
And a slide portion 133 attached to the second rail 123. The side plate support member 131 has a slide portion 13.
3 (base holding portion 12), the side plate supporting member 131 and the slide portion 13
A triangular reinforcing plate 134 is attached to the joint portion with 3 for holding the posture of the side plate supporting member 131 and reinforcing the joint portion.

As the hold portion 132, the side plate body portion 230 of the front side plate 23 applied to the side plate supporting member 131.
First holding portion 1 for pressing the side plate supporting member 131
32a and a plurality of second hold portions 132b for pressing the joint margins 232 and 234 of the front side plate 23 against the side plate support member 131 are provided. These are all front side plates 23
When joining the base member 22 to the base member 22 and the stay 26
It is arranged at a position that does not interfere with the welding work when the 1, 262, 263 are attached to the front side plate 23.

Toggle clamps or the like are used as the first holding portion 132a and the second holding portion 132b, and when the lever portion is rotated, the tip end portion that presses the side plate moves in the contacting / separating direction with respect to the side plate. It is like this. By rotating this lever portion, the side plate can be fixed to the support member or released. The tip portions of the first hold portion 132a and the second hold portion 132b are, considering the pressing force, workability, and durability at the time of side plate welding,
It is preferably formed of metal.

On the other hand, the side plate holding portion 1 for holding the rear side plate 24
4 is fixed on the base holding portion 12. The side plate holding portion 14 has the same configuration as the side plate holding portion 13, the side plate supporting member 141, the reinforcing plate 144, and the first holding portion 142a.
And a holding unit 142 including the second holding unit 142b.
have. In addition, the side plate supporting members 131 and 141 of the side plate holding portions 13 and 14 are provided with reinforcing members 131a and 141a in order to prevent bending and distortion.
1, 141 are joined so as to be suspended.

A rod (long member) 16 is provided near the upper ends of the side plate holding portions 13 and 14, and the side plate holding portions 13 and 14, respectively.
It is sandwiched between 14 and fixed.
This is because between one side plate support member 131,141,
A ring-shaped rod mounting portion 13 provided near the upper end portion
The rod 16 is fixed by being fitted into the shafts 5, 145. The fixing of the rod 16 between the side plate support members 131 and 141 on the other side is performed by, for example, the side plate support members 131 and 141.
This is performed by inserting a pin from the outer surface of 141 (through the side plate support members 131, 141) into the hollow portion of the rod 16 having a hollow shape or the like. This allows
A side plate holding portion 13 for holding the front side plate 23 and a rear side plate 24.
The upper portion of the rear side plate holding portion 14 where is held is fixed, and the distance between the upper end portions is fixed, so that the shake of the side plate holding portions 13 and 14 on the base holding portion 12 is reduced,
The postures of the side plate holding portions 13 and 14 are stable. This allows
Even if the installation area of the side plate holding portions 13, 14 on the base holding portion 12 is not increased by increasing the lower area of the reinforcing plates 134, 144, the posture of the side plate holding portion 13 on the base holding portion 12 can be stabilized. Can be made.

Next, the front side plate 2 is attached to the side plate holding portions 13 and 14.
3 and the positioning and attachment of the rear side plate 24 will be described. 6 is a perspective view showing attachment of the front side plate 23 to the side plate holding portion 13, FIG. 7 is a perspective view showing a state in which each member of the housing 2 is positioned and held by the jig 1, and FIG. 8 is a front side plate. It is a figure which shows the joining part of 23 and the back side plate 24, and stay 263. The side plate supporting member 131 of each side plate holding portion 13 is provided with a positioning pin (protruding portion) 131b for positioning the side plate on the side plate supporting member 131. In this embodiment, the positioning pins 131b are provided at both side end portions of the upper portion of the side plate support member 131 and one end portion of the lower portion. The front side plate 22 is positioned with respect to the side plate support member 131 by fitting the holes 23b provided in the front side plate 23 into the three positioning pins 131b. Positioning pins are similarly provided on the rear side plate 24, and the rear side plate 24 is positioned with respect to the side plate supporting member 141 in the same manner. In this way, the front side plate 2
3 and the rear side plate 24 are positioned on the side plate holding portions 13 and 14, and then the first holding portion 132 of the side plate holding portions 13 and 14 is positioned.
a, 142a and the second hold portions 132b, 142b, the front side plate 23 and the rear side plate 24 are attached to the side plate support member 13.
It is fixed to 1,141.

In this embodiment, the positioning pin 13 is used.
1b shows a configuration in which three side plate holding portions 13 are provided, but the side plate holding portions 13 and 14 may have a configuration in which a different number of positioning pins are provided.

Next, the positioning and holding of the stays 261, 262, 263 with respect to the front side plate 23 and the rear side plate 24 will be described. As shown in FIG. 8, the side plate holding portions 13, 1
4, the side portion of the side plate supporting member 131, that is, the front side plate 23.
The stay 263 is provided at a portion facing the joining margin 234 and the joining margin 244 of the rear side plate 24.
A protrusion 131c is provided for positioning with respect to. The front side plate 23 and the rear side plate 24 are positioned on the side plate supporting members 131, 141 using positioning pins, and the joint margins 234, 2 of the front side plate 23 and the rear side plate 24 are positioned.
The projecting portion 131c is fitted in the hole formed in the hole 44. The projecting portion 131c is configured to penetrate through the holes of the joint margins 234 and 244 of the front side plate 23 and the rear side plate 24 to project, and the hole portion of the stay 263 is fitted into the projecting portion 131c to Side plate 23 and rear plate 2
The stay 263 is positioned with respect to the joining margins 234 and 244 of No. 4. After fitting the hole portion of the stay 263 with the protrusion 131c, the stay 263 is fixed to the front side plate 23 and the rear side plate 24 by the holding portions 132b and 142b.

Further, as shown in FIGS. 7 and 8, the jig 1 includes the base holding portion 12, the side plate holding portions 13 and 14, the side plate supporting members 131 and 141, and the holding portion 142, the front side plate 23 and the rear side plate. While holding the side plate 24, the stays 261, 262, 263, and the base member 22, each member of the front side plate 23, the rear side plate 24, the stays 261, 262, 263, and the base member 22 is joined so that the bonding work can be performed. Each member is supported and fixed at a place avoiding the welding point P.

A method of assembling the housing 2 using the jig 1 will be described. In FIG. 7, each member of the housing 2 is held by the jig 1.
It is a perspective view which shows the state which was positioned. First, the base member 22 is attached to the base member mounting portion 121 of the base holding portion 12.
To place. Then, the side plate supporting member 1 of the side plate holding portion 14
The hole of the rear side plate 24 is fitted into the positioning protrusion of 41 to position the rear side plate 24 on the side plate support member 141. At this time, the holes formed in the joint margin 244 and the like on the side portion of the rear side plate 24 are aligned with the protrusions 14 on the side portion of the side plate supporting member 141.
Fit to 1c. Then, the rear side plate 24 is fixed to the side plate supporting member 141 by the holding portion 142a.

Next, the side plate holding portion 13 is attached to the base holding portion 12
The front plate 23 is slid up and stopped at the position where the front plate 23 is to be attached to the base member 12. At this position, the protruding portion 13 of the side plate supporting member 131 of the side plate holding portion 13
The hole 23b of the front side plate 23 is fitted to the side plate 1b to position the front side plate 23 with respect to the side plate support member 131. At this time, the holes such as the joining margin 234 of the front side plate 23 are fitted into the protruding portions 131c of the side plate supporting member 131. After that, the front side plate 23 is fixed to the side plate support member 131 by the hold portion 132.

Then, the rod 16 is suspended between the side plate holding portions 13 and 14 to form the side plate holding portions 13, 1.
Fix on top of 4. Next, the holes of the stay 263 are fitted to the protrusions 131c and 141c protruding from the holes of the joint margins 234 and 244 of the front and rear side plates 23 and 24 held by the side plate holders 13 and 14, respectively. Front and rear side plates 23, 2
The stay 263 for 4 is positioned. After this, the second
The stay 26 is held by the holding portions 131b and 142b.
3 is fixed to the front side plate 23 and the rear side plate 24.

Further, in this state, the stays 261 and 262 are applied to both sides of the upper ends of the front side plate 23 and the rear side plate 24 so as to be suspended between the both side plates, and the front and rear side plates 23, 142 are moved by the second hold portions 132b and 142b. Fix at 24. As for the stays 261 and 262, the side plate support members 131 and 141 are provided with protrusions, and the holes of the front side plate 23 and the rear side plate 24 and the holes of the stays 262 and 263 are fitted into the protrusions. Positioning with respect to the front side plate 23 and the rear side plate 24 may be performed.

As described above, in a state in which the respective members of the housing 2 are positioned by the jig 1, the front side plate 23, the rear side plate 24, the base member 22 and the stays 261, 262, 26.
The welding work of 3 is performed to join the respective members. After joining, the holding parts 132, 142 of the side plate holding parts 13, 14 are released, the side plate holding part 13 is slid and moved away from the housing 2, and the housing 2 is removed from the jig 1.

As described above, according to the jig 1 of this embodiment, the front side plate 23 and the rear side plate 24 with respect to the base member 22.
The posture can be maintained and positioned easily and accurately. As a result, the respective members forming the housing 2 can be joined with high precision, and the strength of the joined portion of the respective members can be improved.

The present invention is not limited to the configuration of the above embodiment, and various modifications can be made. For example, in the above-described embodiment, the positioning with respect to the side plate holding portions 13 and 14 is performed by fitting the holes 23b and 24b of the front and rear side plates 23 and 24 into the protrusions of the side plate supporting members 131 and 141. However, the side plate support members 131,
The front and rear side plates 23, 24 are applied to 141, and the holding unit 1
The positioning may be performed only by fixing with 32 and 142. Similarly, the positioning of the stay 263 with respect to the front and rear side plates 23, 24 may be performed only by the holding parts 132, 142 without providing the protruding part.

In the above embodiment, the upper end portions of the side plate holding portions 13 and 14 are fixed by the rod 16 during the welding work.
By increasing the lower area of the reinforcing plates 134 and 144 attached to the side plates 1 and 141,
The postures of 1, 141 may be stabilized to prevent blurring.

Further, in the above-mentioned embodiment, the side plate holding portion 13 holding the front side plate 23 is configured to slide on the base holding portion 12, but only the side plate holding portion 14 holding the rear side plate 24, Alternatively, both the side plate holding portions 13 and 14 may be configured to be slidable.

[0037]

As described above, according to the present invention, since the front and rear side plates are held by the side plate holding portion in a posture substantially orthogonal to the base member held by the base holding portion, the front and rear side plates with respect to the base member are held. The posture can be maintained easily and accurately. Further, since the side plate holding portion is slidably movable with respect to the base holding portion, the front and rear side plates can be easily positioned with respect to the base member.
Thereby, each member can be joined with high precision, and the strength of the joining portion of each member can be improved.

If the upper end portions of the both side plate holding portions are fixed to each other by the elongated member, the distance between the upper end portions can be kept constant, so that the side plate holding portion on the base holding portion is displaced. Is reduced and the posture of the side plate holding portion is stabilized. Accordingly, the posture of the side plate holding portion on the base holding portion can be stabilized without downsizing the installation area of the side plate holding portion on the base holding portion, and downsizing of the jig can be achieved.

If the side plate holding portion is provided with a protrusion on the surface facing the side plate and is fitted into the hole of the side plate, the side plate is positioned with respect to the side plate holding portion. The side plate can be positioned easily and accurately.

Further, by providing a protrusion on the surface of the side plate holding portion facing the suspension member, and by fitting the holes of the side plate and the suspension member, the suspension member is positioned on the side plate. The member can be positioned easily and accurately.

[Brief description of drawings]

FIG. 1 is a perspective view showing a housing assembly jig according to the present invention.

FIG. 2 is a perspective view showing a housing assembled by the jig.

FIG. 3 is a front view of the jig.

FIG. 4 is a right side view of the jig.

FIG. 5 is a plan view of the jig.

FIG. 6 is a perspective view showing the attachment of the front side plate to the side plate holding portion.

FIG. 7 is a perspective view showing a state in which each member of the housing is positioned and held by the jig.

FIG. 8 is a view showing a joint portion between a front side plate, a rear side plate, and a stay.

[Explanation of symbols] 1 Case assembly jig 2 housing 22 Base member 23 Front plate 23b hole 24 Rear plate 261, 262, 263 stay (suspension member) 12 Base holding part 13, 14 Side plate holding part 131b, 131c, 141c Projection part 16 rod

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Tadashi Teranishi             Kyocera 1-22-28 Tamatsukuri, Chuo-ku, Osaka-shi             Within Mita Co., Ltd. (72) Inventor Masayuki Nishi             Kyocera 1-22-28 Tamatsukuri, Chuo-ku, Osaka-shi             Within Mita Co., Ltd.

Claims (4)

[Claims] 1. A housing having a front plate and a rear plate formed of sheet metal, a suspension member suspended from the both side plates, and a base member joined to the lower portion of the both side plates to support the both side plates is assembled. A jig for, which is arranged in parallel on the base holding portion for holding the base member and the side holding portion for each side plate, holds the side plate in a posture substantially orthogonal to the base member, A side plate holding part that holds the suspension member in a state of being suspended between the front and rear side plates, and at least one of the side plate holding parts for the side plates is slidably provided on the base holding part. The base holding portion and the side plate holding portion are configured to hold the front and rear side plates, the suspension member and the base member at a position avoiding a joining point of the front and rear side plates, the suspension member and the base member. Housing assembly jig, characterized in that. 2. An elongate member is sandwiched between the side plate holding portions arranged in parallel, and the joining work is configured in a state of being fixed near the upper end of the side plate holding portion. The housing assembly jig according to claim 1, wherein: 3. The side plate holding portion is provided with a protrusion on a surface facing the side plate, and a hole formed in the side plate is fitted into the protrusion so that the side plate holder is held. The housing assembly jig according to claim 1 or 2, wherein the side plate is positioned on the portion. 4. The side plate holding portion is provided with a protrusion on a surface facing the suspension member, and the hole formed in the side plate and the suspension member is fitted into the protrusion. The housing assembly jig according to any one of claims 1 to 3, wherein the suspension member is positioned by the side plate.