JPH05123897A - Auxiliary device for assembling box - Google Patents

Abstract

PURPOSE:To reduce labor for assembling a box, labor for changing the size, error dispersion for assembling, etc. CONSTITUTION:One pair of frame stands 31, 32 opening to both sides in the (x) direction, a surface plate LB3 between frame stands, plunger pins 68, 69 and solenoids 76, 77 for positioning a lower plate 81 arranged at a surface plate, (y) moving tables 5, 6 travelling on an upper plate 82 on the surface plate, one pair of air cylinders 10, 11 for reversely driving in the (x) direction mounted on the (y) moving tables, one pair of upper plate side supporting means opening to both sides in the (x) direction and an upper plate clamper 53 pushing the upper plate to an upper side edges of the side plates 83, 84 are provided. The lower plate position with the plunger pin, the side plate position with the opening degree of the frame stands and the upper plate position with the upper plate side support, are automatically regulated, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for holding four flat plates in the shape of a box which is open at both ends in the longitudinal direction and holds the shape of the box. The present invention relates to a device for holding four steel plates in one box shape in assembling each steel plate box that constitutes the expansion boom of the fan.

[0002]

2. Description of the Related Art For example, a base (BASE), a second (2ND), a third (3RD) and a top (TOP).
In the production of a four-splice expansion boom, first, these base, second, third and top are respectively
It is manufactured by welding four steel plates into one box shape. The conventional manufacturing process of one box is as follows. First, a lower plate positioning block suitable for the box size is mounted in advance on the surface plate, and the lower plate is placed at the position defined by the block. Next, each of the two side plates is placed on the lower plate and held by a number of electromagnets. In this mode, a large number of electromagnets are adjusted in position (recombined) in advance according to the size of the box before mounting the side plate. Alternatively,
The side plate is leaned against the outer reference positioning block, and the side plate is overhanged from the inside with a turnbuckle and clamped. This overhanging work is done manually. Place the upper plate on the upper side edge of the two side plates standing on the lower plate, and adjust the position with respect to the side plate by hammering (manually) while visually checking the positional relationship with the side plate, and then position the block and upper plate. Clamp the upper plate by driving a wedge between the side edges of. As described above, the four steel plates become one box shape. 4 combined in a box shape like this
Adjacent contact line portions of the steel plates are joined from the outside of the box by temporary welding at multiple points in the longitudinal direction. For example, temporary welding is performed at a pitch of 100 to 200 mm.

[0003]

For example, in the process of manufacturing boxes of different sizes such as the base, second, third and top of the telescopic boom, the lower plate positioning block is changed every time the size is changed. Also, it takes a lot of effort to change the electromagnets for supporting the side plates, and moreover, for any size, it takes a lot of effort to position the upper plate, such as hammering or hammering, and has a box (temporary attachment box) that has been assembled. A lot of labor is required in many processes, such as labor for removing wedges when taking out. This may impair the safety of workers, and the assembly accuracy is low, and relatively random assembly errors are likely to occur. A first object of the present invention is to reduce the manual labor of box assembly, particularly the labor of moving a heavy object, and to reduce the manual labor of coping with the size change and the variation of box assembly precision. The purpose is 2.

[0004]

The box assembly assisting apparatus of the present invention comprises a pair of pedestals (31, 3) which face each other in the horizontal x direction orthogonal to the horizontal y direction and at least one of which is movable in the x direction.
2), and a side plate positioning device (SGD1 to 4) including first x driving means (42 to 43,92) for driving the movable mounts (31, 32) in the x direction; A platen for supporting the box body (81 to 84) that is placed between the racks (31, 32) of the box
(LB1 to 7); a y-moving table (5, 5) for traveling in the y-direction on the box-forming lower plate (81) supported by the surface plate (LB1 to 7).
6), y drive means (7) for driving the y moving table (5, 6) in the y direction
~ 9), an air-cylinder (10, 11/16, 17) mounted on the y-moving table (5, 6) and driving a piston rod in the x direction, and an inner cylinder attached to the tip of the piston rod. This piece (12,
An inner lining device (IRD) including 13/18, 19); and an outer support in an upright position by the pair of mounts (31, 32),
3/18, 19) via the air-cylinders (10, 11/16, 17) to the pair of pedestals (31, 32) respectively, and two side plates (83 , 84), which sandwiches the upper plate (82) for box construction placed on the upper edge of the box construction, and a pair of sides facing each other in the x direction, at least one of which is movable in the x direction. An upper plate positioning device (UG) including supporting means (63, 64) and second x driving means (65, 67) for driving the movable side supporting means (63, 64) in the x direction.
D1,2) ;. Symbols in parentheses indicate corresponding elements in the embodiments shown in the drawings and described later.

[0005]

[Function] Surface plate (LB1 to 7) is side plate positioning device (SGD1 to 4)
Since it is between a pair of pedestals (31, 32) facing each other in the x direction, when the lower plate (81) for box construction is placed on the surface plate (LB1 to 7), the lower plate (81) The gantry (31, 32) is located on the side. Use the y drive means (7-9) of the liner (IRD) to move the y carriage (5, 6) to the lower plate (8
1) Run on the y-direction to position it between the pedestals (31, 32), and try to assemble the facing distance of the pedestals (31, 32) with the first x drive means (42 to 43, 92). Set it to the size corresponding to the size of the box to be attached, and attach one side plate (83) to one of the mounts (31, 32).
Insert it between the (31) and y-moving bases (5, 6) and stand it on the lower plate (81), and place the other side plate (84) on the other side (32) of the mount (31, 32) and y.
Insert it between the movable bases (5, 6), stand it on the lower plate (81), and drive the air cylinders (10, 11/16, 17), and the inner contact pieces (12, 13 /
18, 19) press one side plate (83) against one of the mounts (31) and the other side plate (84) against the other of the mounts (32) with air-cylinder pressure. As a result, the side plates (83, 84) are automatically positioned at a position corresponding to the box size, and the side plate positioning device (SGD1 to 4) pedestals (31, 32) and lining device are installed.
It is supported by the (IRD) air-cylinder (10, 11/16, 17).

Next, the box forming upper plate (82) is placed on the upper edges of the side plates (83, 84), and the second x driving means (65, 67) of the upper plate positioning device (UGD1, 2) is used. A pair of side support means (63,6
When a movable member in the x direction of 4) is driven in a direction in which the pair of pairs is closed, the pair of side support means (63, 64) causes the upper plate (82).
Insert both side edges of. As a result, the upper plate (82) is held by the pair of side supporting means (63, 64). Assuming that one of the pair of side supporting means (63, 64) is set at a position corresponding to the box size and the other side is set as one side reference for driving in the x direction, the upper plate (82) is automatically moved by the above-mentioned sandwiching. It has been positioned at the size corresponding position. The pair of side support means (63, 64) and the second x drive means (65, 6)
Assuming that 7) is mounted on the x base that is driven in the x direction by the third x driving means, the side support means is sandwiched by the third x driving means after sandwiching the upper plate (82) as described above. (63, 64) and the upper plate (82) that it holds can be set at positions corresponding to the box size. As described above, the position setting corresponding to the box size of the upper plate (82) in the x direction can be automatically performed in several modes.

As described above, the positioning of the side plates (83, 84) in the x direction is performed by the gantry (31, 3) by the first x driving means (42 to 43, 92).
2) is automatically driven in the x direction, and the side plates (83, 84) are held by the y drive means (7) on the lower plate (81) on the surface plate (LB1 to LB7).
~ 9) Air on the y-moving stand (5, 6) automatically driven in the y-direction.
Since it is automatically performed by the cylinders (10, 11/16, 17), the labor of the operator for positioning and holding the side plates (83, 84) corresponding to each box size is significantly reduced,
Moreover, variations in assembly error are substantially eliminated. In a preferred embodiment of the present invention described later, a side plate positioning device (S
The first x driving means (42 to 43, 92) of GD1 to 4) is a first threaded rod having a right male screw threadedly coupled to one of the female screws of one of the pair (31, 32) of the mounts (31, 32). (42), a second screw rod (92) connected to the first screw rod (42) and having a left male screw screwed to the female screw of the other (32) of the pedestal (31, 32), and 1 or 1
It includes an electric motor (44) that is coupled to one of the two threaded rods (42/92) and drives both threaded rods (42/92) to rotate simultaneously in the same direction. As a result, the gantry (31, 32) is simultaneously closed and opened in the x direction and moved at the same speed in the x direction with respect to the center by the forward and reverse rotations of the electric motor (44). The time required for each gantry (31, 32) to move to the x position corresponding to the box size is the gantry (31, 32)
The time required to move the other one to the size corresponding position in the case of one side fixed to one is half, and the time required to set the position of the gantry to the size corresponding position is significantly shortened.

Also, in the preferred embodiment, the second x driving means (65, 67) of the upper plate positioning device (UGD1, 2) each have a pair of side supporting means (63) movable in the x direction. , 64)
An air cylinder (67) having a piston rod connected to the other end, and an endless loop having two sides extending parallel to each other in the x direction.
A chain (65) in which one of the pair of side support means (63, 64) is connected to one of the sides, and the other of the side support means (63, 64) is connected to the other of the two sides .. As a result, when the air-cylinder (67) is driven to retract the piston rod,
The pair of side supporting means (63, 64) finally shifts the upper plate (82) to an intermediate point in the x direction of the side supporting means (63, 64) and finally holds the upper plate (82). When clamping is over Upper plate (82)
Is automatically set at the midpoint of the side support means (63, 64) in the x direction. Since the pair of side support means (63, 64) is thus the center reference and its x-direction midpoint is fixed, this x-direction midpoint is used as the base (31) of the side plate positioning devices (SGD1 to SGD4). By aligning the center of the upper plate (82) with the side support means (63, 64), the central axis of the upper plate (82) in the longitudinal direction is automatically adjusted. On the mount (31,
It is located on the x-direction center between the side plates (83, 84) supported by 32). Therefore, the positioning of the upper plate with respect to the side plate is accurate. In addition, since the pair of side support means (63, 64) are center-based, the time required for them to move from the standby position to the position where the upper plate (82) is clamped is half that in the case of one-sided reference. The time for positioning and pinching the plate (82) in the x direction is greatly reduced.

Also, in the preferred embodiment, the lining device (I
RD) is at least a pair of air-cylinders (10, 11/16, 17) that drive the piston rods in opposite directions in the x direction, and an inner contact piece (10) attached to the tip of the piston rod. 12,
13/18, 19) are included. That is, the inner side support of the lining device (IRD) is also the center reference. A pair of air-cylinder (10,11
/ 16, 17) need only press each of the two side plates (83, 84), and the extension stroke of the piston rod for the press is approximately half of the case of one side reference, so The time for driving the inner contact piece (12, 13/18, 19) from the standby position to the position for pressing the side plate is extremely short. The cylinder length can be about half that of the one side standard, so a pair of air-cylinders (10, 11/16,
Each of 17) needs only a very short length in the x direction,
This means that the outer shape of the mechanism for internally supporting the side plate can be designed to be extremely small, which facilitates box assembly of many sizes, particularly small sizes.

The preferred embodiment also includes a y-moving table (5).
Further includes guide means (IGD1, 2) for positioning the intermediate part between the pair of mounts (31, 32). As previously mentioned, the lining device (IRD) was fitted with a pair of air-cylinders (10,11 / 1
If the inner contact piece (12, 13/18, 19) is brought into contact with the inner surface of the side plate with reference to the center in (6, 17), the inner contact piece (12, 12, (13/18, 19) toward the side plate, push the air cylinder (10, 11/16, 17)
Even if it is not at the midpoint between (83, 84), one inner segment (for example, 1
When 2,18) hit the side plate (83), the movement of the inner contact piece is restrained by the pedestal (31) via the side plate (83), and then the movable table (5) is moved to the other side plate (83). Moving toward the side plate (84) of the other side, in which the other inner contact piece (13, 19) hits the other side plate (84), and both side plates (8
(3,84) is pressed against each of the pedestals (31,32) by the inner piece, so that the y-movement table (5) is not always necessary for supporting the side plates.
Need not be positioned at the midpoint in the x direction between the mounts (31, 32). However, the y-moving base (5) has a lower plate (81) between the mounts (31, 32).
Since it is necessary to move up in the y-direction, it is preferable to force the y-moving base (5) to the midpoint in the x-direction between the mounts (31, 32) and the guide means (IGD1, 2) do this.

In the preferred embodiment, the surface plate (LB1 to
7) is a bottom plate of various sizes (8
(1) Plural pairs of plunger pins (68,69 / 70,71 / 72,73 / 74,7,7,74 / 7,74 / 7,74 / 7,74 / 7,74 / 7,74 / 7,74 / 7,74 / 7,74 / 7,7 / 74
5) and plunger pin (68,69 / 70,71 / 72,73 / 74,7
A solenoid device (76, 77) is included for driving each of the above 5) to a position projecting upward. According to this, a pair of plunger pins corresponding to the size of the box to be assembled is projected upward from the upper surface of the surface plate (LB1 to 7) by the solenoid device (76, 77), and the lower plate (81). When put on the surface plate,
The plunger pin that hits the lower plate (81) descends. Lower plate (81)
Is shifted in the x direction, the plunger pin projects upward from the upper surface of the surface plate (LB1 to 7) when the lower plate (81) deviates from the upper position of the plunger pin. This completes the x position adjustment of the lower plate (81). Setting the x position of the lower plate (81) is as simple as this, and when the size changes,
Connect the pair of plunger pins to the surface plate (LB
It is only necessary to project it above the upper surface of 1 to 7), and size setting is extremely easy.

As described above, in the preferred embodiment of the present invention, the x position of the side plate (31, 32) is defined to support the outer surface of the side plate.
The pair of mounts (31, 32) are center-opening in the x direction, and the inner contact pieces (12, 18/13, 19) supporting the inner surface of the side plates (31, 32) are also centered in the x direction. A pair of side support means (63, 6) that are standard double-opening and support both sides of the upper plate (82).
4) is a center-based double opening in the x direction.
The person's center is set at the x position of a reference line (Ys) extending in the y direction. Therefore, a pair of mounts (31, 32)
When the opening is set according to the size of the box to be assembled, the side plate is automatically positioned at the x position corresponding to the size by pushing the side plate outward by the inner contact piece (12,18 / 13,19). In addition, the upper plate (82) is closed by holding the upper plate on both sides of the pair of side support means (63, 64), and the center line of the upper plate (82) is set to the midpoint between the two side plates (83, 84). It is automatically positioned at the x position to place.

Further, the preferred embodiment includes side plates (83,8).
4) upper plate clamp means (53) for pressing down the upper edge facing part of the upper plate (82) for box construction on the upper edge,
Is further provided. Both sides of the upper plate (82) are supported by a pair of side supporting means (63, 64) and the upper plate (82) is aligned with the side plates (83, 84) by the means (63, 64). Moreover, since the upper plate (82) is placed on the side plates (83, 84) by its own weight, the box shape is maintained in this state, but the four plates constituting the box are adjacent to each other, for example, It is preferable that the lower surface of the upper plate (82) is in close contact with the upper edge of the side plate over the entire length in the y direction at the time of fixing work for integrally joining by welding. The upper plate clamping means (53) assists this close contact. Other objects and features of the present invention will become apparent from the following description of embodiments with reference to the drawings.

[0014]

FIG. 1 is a plan view of a preferred embodiment of the present invention.
The side view is shown in FIG. This embodiment is generally an lining device IRD.
And the external device OSD. Although the reference line Yi extending in the horizontal direction y of the lining device IRD and the reference line Ys extending in the horizontal direction y of the outer lining device OSD are shown parallel to each other in FIGS. Reference lines Yi and Ys
Are on the same straight line, and the lining device IRD is the outer lining device OSD.
Located on the right side of. 1 and 2, the lining device IR is shown.
FIG. 3 shows a state in which the y movable table 5 of D is placed in the standby position.
And FIG. 4 shows that the y-moving table 5 is inserted into the external stretching device OSD to make a four-joint boot of a recker vehicle having a pulling capacity of 25 tons.
The cross section when assembling the base of the
FIG. 5 shows the second (2ND) and third (3ND) of the boom.
3 shows a cross section when the RD) and the top (TOP) are assembled. Each of the base, second, third and top has a box-like shape with both end faces in the longitudinal axis direction opened, and is constructed by welding four steel plates.
In this embodiment, the four steel plates are combined in a box shape. When this combination is completed, the contact portions of adjacent steel plates are temporarily welded in the longitudinal direction, and the four steel plates are box-shaped. Is integrated (temporarily attached). The temporary attachment box, which was completed by temporary welding, was welded over its entire length in the y direction at its inner corners and outer corners by the main welding in the subsequent process, and each strong boom piece (base, Second, Sir
Or top). In the following, among the four steel plates that are the box materials, the steel plate that is placed on the surface plates LB1 to LB7 (FIG. 2) in surface contact is referred to as the lower plate (81: FIG. 3), and the side plate is placed on the upper surface of the lower plate. The two steel plates that stand vertically with the edges placed are referred to as side plates (83, 84: FIG. 3), and the steel plates that are placed horizontally on the upper side edges of these side plates are called upper plates (82:
3).

(1) Structure of the lining device IRD Mainly referring to FIG. 2, the base 1 of the lining device IRD includes:
An x-moving table 3 is movably mounted in the x-direction via a plurality of rollers 2. The x moving base 3 is driven in the x direction by pneumatic drive units (hereinafter referred to as air-cylinders) 4a and 4b. The y moving table 5 is mounted on the x moving table 3. A plurality of rollers 6 are mounted on the y-moving table 5, these rollers 6 are on the upper flat plate of the x-moving table 3, and these rollers 6 make the y-moving table 5 y. Can move in any direction. y Moving table 5
Is a connector 7, and a chain 8 stretched in a loop shape in the y direction.
The chain 8 is driven to rotate clockwise / counterclockwise (FIG. 2) by an electric motor unit 9 incorporating a speed reducer. When it is driven to rotate in the counterclockwise direction, the y movable table 5 moves leftward (in the y direction) and enters the inside of the external device OSD. When driven to rotate in the clockwise direction, the y movable table 5
Moves to the right and exits from the external device OSD. The limit of the rightward movement is the standby position shown in FIGS.

On the y-moving table 5, first and second sets of air cylinders 10 and 11 driven in the x direction (FIGS. 2 and 3).
Is installed. First and second set of air-cylinder 1
The driving directions of 0 and 11 are opposite to each other, and these support the lining contact pieces 12 and 13. Referring to FIG. 3 showing an enlarged cross section taken along line 3a-3a of FIG. 1, eight 2-stroke air cylinders 14 driven in the z-direction are mounted on the y-moving table 5, and a pair of these two stroke-air cylinders 14 are mounted. Each support one of the four pedestals 15. Each of the upper bases 15 is equipped with a third set and a fourth set of air cylinders 16 and 17 (FIGS. 2 and 3) driven in the x direction. The driving directions of the air cylinders 16 and 17 of the third group and the fourth group are opposite,
These support the liner strips 18, 19. A central trunk 20 extending in the y direction is fixed to the eight air cylinders 14, and guide rails 21 and 22 are fixed to the central trunk 20.

The air-cylinder 14 has a two-stroke stroke, and is a four-joint blower for a recker vehicle having a lifting capacity of 25 tons.
When assembling the base (BASE) and the second (2ND), the second stroke (maximum extension) is set (rightmost column in FIGS. 3 and 5). When assembling the third (3RD), it is set to the first stroke (small extension) (center column in FIG. 5), and when assembling the top (TOP),
The retracted position (without extension) is set (the leftmost column in FIG. 5).
The first to fourth sets of air-cylinders 10, 11, 16 and 17 are stepless and extend to a position where their extension is prevented by a predetermined air-pressure (FIGS. 3 and 5). The drive directions of the first and second sets of air cylinders 10 and 11 (and the third and fourth sets of air cylinders 16 and 17) are opposite (center).
Since it is a standard two-sided extrusion), the extension distance of the piston rod is shorter than in the case where only one of the side plates 83, 84 is pushed outward by one set of air-cylinders or both are pushed simultaneously (one-sided extrusion). Therefore, the extrusion time is short, and their cylinder lengths may be short, about 1/4 of the required maximum width (width of the lower plate 81).
Internal pushing mechanism (10, 11, 16, 17, 12, 13,
(18, 19) can be designed to have a small width in the x direction in the standby state. In case of one-sided extrusion, the cylinder length is about twice (lower plate 8
It is almost half of 1), and it is difficult to downsize the lining pushing mechanism. In addition, as described later, the side plate positioning device SGD1
The x-moving bases 31 and 32 of the SGD4 are center-opening double-opening, and the air-cylinders 10, 11, 16 and
A 17 center-referenced two-sided extrusion is optimal. For example, with the central trunk 20 placed at the x position (center) of the reference line Ys, and with the piston rods of the air-cylinders 10, 11, 16 and 17 set to the most retracted standby position, the side plates 83 and 84 are It can be easily lowered and inserted outside the inner contact pieces 12, 18 and 13, 19. Side plates 83, 84
It is not necessary to retreat the y movable table 5 in the x direction for charging the.

(2) Structure of External Device OSD Referring again to FIGS. 1 and 2, the external device OSD is
Surface plates LB1 to LB7 arranged in the y direction, upper plate positioning devices UGD1 and UGD2, central trunk guide device IGD
1 and IGD2, and side plate positioning device SGD
1 to SGD4. The upper surfaces of the surface plates LB1 to LB7 are all at the same level.

(2-1) Structure of central trunk guide device IGD1 FIG. 3 showing an enlarged cross section taken along line 3a-3a of FIG. 1 and FIG.
2 and FIG. 2, a side plate positioning device S described later.
The y of one of the two mounts 31, 32 of the GD1
A cylinder of an air cylinder 34 is fixed to the arm 33. A support arm 36 having a bearing at which a roller 35 is rotatably mounted at an intermediate point and extending in the x direction is fixed to the tip of the piston rod of the air cylinder 34. Guide rods 37 and 38 are fixed to both ends of the support arm 36. The guide rods 37 and 38 penetrate through the guide cylinders 39 and 40 fixed to the arm 33. When high pressure air is supplied to the air-cylinder 34, the piston rod protrudes from the cylinder, and the central trunk 20 of the lining device IRD.
When entering the external device SGD1 as shown in FIG.
The roller 35 at the tip of the piston rod pushes the guide rail 21 in the x direction, as shown by the chain double-dashed line in FIG.
The air cylinder 34, the roller 35, and the support arm 3 described above.
6, Another set similar to the guide rods 37 and 38 and the guide cylinders 39 and 40 is mounted on the other pedestal 32 and faces them. As a result, the central trunk 20 is positioned at the midpoint of the pair of air cylinders (34, ...) Opposing each other. The guide rods 37 and 38 prevent the piston rod of the air-cylinder 34 from moving in the y direction. Another central trunk guide device IGD2 shown in FIG.
It has the same structure as D1.

(2-2) Structure of Side Plate Positioning Device SGD1 Referring to FIG. 3, a pair of x moving bases 31, 32 are mounted on a base 41 extending horizontally in the x direction so as to be movable in the x direction. ing. A nut 43 screwed to a screw rod 42 formed by cutting a right male screw is fixed to one moving base 31. A threaded rod 92, which is a left-handed male thread having a reverse threaded relationship to the threaded rod 42, is connected to the threaded rod 42.
A nut 93 is screwed to the screw 2, and the nut 93 is fixed to the x movement base 32. The distance from the x position of the reference line Ys (the midpoint between the pins 68 and 69) to the x moving base 31,
The distance from the x-position to the x-movement table 32 is equal. That is, the x moving bases 31 and 32 are symmetrically arranged in the x direction with respect to the reference line Ys. The screw rod 92 is connected to the output shaft of the electric motor unit 44 including the speed reducer. Since the screw rod 42 has a right-hand thread and 92 has a left-hand thread, when the electric motor unit 44 rotates in the forward direction, the x-moving base 31 moves to the left and the x-moving base 32 moves to the right (close movement) at the same time. ,
When they are reversed, the x-moving table 31 moves to the right and the x-moving table 32 moves to the left (open movement) at the same time. That is, the x moving table 3
1 and 32 are center-standard double-opening. As a result, the time required to set the x movable bases 31 and 32 to the required opening is shorter than in the case of the one-side reference in which one movable base is always placed at a fixed position. A rotary encoder 45 is connected to the threaded rod 42, and one rotation is made for each minute rotation of the threaded rod 42.
Generate electrical pulses. An electric control unit (not shown) counts down the electric pulse when the electric motor unit 44 is in the normal rotation and counts up when the electric motor unit 44 is in the reverse rotation. The count value indicates the opening degree (x position) of the x mobile bases 31, 32. The x moving table 31 has a z moving table 46.
Is mounted movably in the z direction. A nut 48 screwed to a screw rod 47 is fixed to the z moving base 46. The screw rod 47 is an electric motor unit 4 including a speed reducer.
It is connected to nine output shafts. As a result, when the electric motor unit 49 rotates in the forward direction, the z moving base 46 moves downward, and when it rotates in the reverse direction, it moves upward. A rotary encoder 50 is coupled to the threaded rod 47 and generates one electric pulse for each minute rotation of the threaded rod 47. An outer contact piece 51 extending parallel to the y-arm 33 is fixed to the x movable table 31, and an outer contact piece 52 extending in the y direction is also fixed to the z movable table 46. The left end faces of the outer contact pieces 51 and 52 are on the same vertical plane.

The outer contact piece 51 is equipped with an air-cylinder toggle device 53 for pressing the upper plate, and the outer contact piece 52 has an air-cylinder toggle for pressing the upper plate of a second jib (miniature box) not shown. The device 54 is equipped. In FIG. 3, the toggle device 53 shows the state of pressing the upper plate, and the toggle device 54 shows the standby state. The structure of the other moving table 32 is the same as the structure of the moving table 31 described above, and they are symmetrical to each other and face each other. Side plate positioning device S
The structure of GD2-4 is the same as the structure of SGD1 mentioned above.

(2-3) Structure of Upper Plate Positioning Device UGD2 Referring to FIG. 4 showing an enlarged cross section taken along line 4a-4a of FIG.
The guide rails 61 and 62 extending horizontally in the x direction have 1
A pair of x guide plates 63 and 64 are mounted so as to be movable in the x direction. One x-guide plate 63 is fixed to the underlay of the endless chain 65. The other x-guide plate 64 is symmetrical to and opposed to the above-mentioned x-guide plate 63. x guide plate 64
Is attached to the top of the chain. The gear on which the chain 65 is stretched is connected to the pillow unit 66. An air cylinder 67 is fixed to the x guide plate 63, and the tip of its piston rod is fixed to the x guide plate 64. x guide plate 63
And 64 are equidistant to the right and left from the x position of the reference line Ys (the midpoint between the pins 68 and 69). When the air-cylinder 67 pushes out the piston rod, the guide plate 63 moves to the right and the guide plate 64 moves to the left at the same speed (the direction is opposite). When the air-cylinder 67 retracts the piston rod, the guide plate 63 moves to the left and the guide plate 64 moves to the right at the same speed. Therefore, when the air cylinder 67 pulls in the piston rod and the upper plate 82 is displaced to the right from the reference position (the position shown in FIG. 4), the guide plate 63 first causes the upper plate 8 to move.
When hitting 2, the upper plate 82 is pushed to the left. Guide plate 63
While pushing the upper plate 82 to the left, the guide plate 64 moves to the right in the opposite direction at the same speed as that speed. The guide plate 64 also contacts the upper plate 82. As a result, the movement of the guide plates 63 and 64 to the left and right is restrained, so that the movement of the guide plates 63 and 64, that is, the chain 65.
Movement (counterclockwise rotation in FIG. 4) stops. Upper plate 82
Is clamped by the guide plates 63 and 64 at a predetermined pressure (piston rod drawing pressure of the air cylinder 67). When stopped in this manner, the midpoint of the guide plates 63, 64, that is, the central axis of the upper plate 82 in the longitudinal direction is at the x position of the reference line Ys (the midpoint between the pins 68, 69). That is, the upper plate 82 is aligned with the side plates 83 and 84.

(2-4) Structures of the surface plates LB1 to LB7 The surface plates LB1 to LB4 horizontally support the lower plate 81 which is a box material. Each of the surface plates LB3 and LB7 has eight plunger pins for position regulation for positioning the lower plate in the x direction, and pins are respectively provided from a standby position below the upper surface of the surface plate to an upper surface of the surface plate. Eight solenoid devices are provided to drive to a restricted position protruding upward. Explaining what is equipped on the surface plate LB3, the plunger pins 68 and 69 (FIGS. 1 and 3) are the four-jointed boom base (of a recker vehicle with a pulling capacity of 25 tons). BASE) for controlling both side positions of the lower plate 81, and the plunger pins 70, 71 (FIG. 1,
FIG. 5) is for restricting the re-side position of the lower plate of the second (2ND), the plunger pins 72, 73 (FIG. 1,
FIG. 5) is for restricting the re-side position of the lower plate of the third (3RD), and the plunger pins 74, 75 (FIGS. 1, 5) are both side positions of the lower plate of the top (TOP). To regulate the Each of these plunger pins is solenoid device 76 (4 pieces), 77 (4 pieces)
Of the solenoid devices 76, 7
By energizing each electric coil of No. 7, surface plate LB3
Projects upward from the upper plane (FIGS. 3 and 5). Plate LB
The same as the plunger pin and the solenoid device described above is also mounted on 7. In addition, surface plate LB7
The arrangement of the ones is symmetrical with respect to the arrangement of the platen LB3 with respect to the x-axis (FIG. 1).

(3) Box assembly Four steel plates, which are the material of the base of the boom (BASE),
That is, the lower plate 81, the side plates 83 and 84, and the upper plate 82 are
A mode of use of the above-described embodiment, which is assembled in a box shape as shown in FIG. 3, will be described.

-Standby State-First, before placing the lower plate 81 on the surface plates LB1 to LB7 of the external stretching device OSD, the internal stretching device IRD is in a standby state as shown in FIG. 1 (top surface) and FIG. 2 (side surface). Placed in position, liner I
The x-moving table 3 of the RD is positioned at a position where the center line of the central trunk 20 on the x-moving table 3 coincides with the reference line (center line) Ys of the external stretching device OSD, and the air-cylinders 10, 11, 16 and 17 are pistons. Set the rod to the retracted position where it is retracted to the limit,
In addition, the 2 stroke air cylinder 14 is also set to the retracted position (without extension) in which the piston rod is pulled in to the limit. In the external device OSD, the x-moving bases 31 and 32 are set to the most open standby position between them, and the central trunk guide device I
The guide rollers 35 of GD1 and GD2 are also air cylinders 34
Sets the piston rod to the standby position where the piston rod is retracted to the retracted limit, and the air-cylinder toggle devices 53 and 54 are also set to the standby position where the piston rod is retracted (state 54 in FIG. 3). This is the standby state. -Mounting of Lower Plate 81- In the standby state described above, an operator first operates a switch on an operation panel (not shown) to energize the solenoid devices 76 and 77 for positioning the base lower plate. As a result, the plunger pins (68, 69, ...
.) Projects upward from the upper surfaces of the surface plates LB3, LB7 (state shown in FIG. 3). Then, using the hoist, lower plate 81
Are placed on the surface plates LB1 to LB7. Plunger pin (6
(8, 69, ...) When the lower plate 81 rides on it, the pin descends, but by adjusting the lower plate 81 by shifting it in the x direction,
When the lower plate 81 moves to a predetermined position in the x direction, the plunger pin projects upward, thereby completing the positioning in the x direction. Positioning in the y direction is completed by pressing one end of the lower plate 81 against the stopper device 90.

-Mounting of Side Plates 83 and 84-Next, the operator operates a switch on an operation panel (not shown) to open the side plates 31 and 32 of the side plate positioning devices SGD1 to SGD4.
Is set to the position corresponding to the base side plate. That is, mount 3
1, 32 outer contact pieces 51, 52 are connected to base side plates 83, 84.
Position (outside dimension position of base side plate: position shown in FIG. 3). Next, a switch on the operation panel (not shown) is operated to guide the central trunk guide devices IGD1 and IGD2.
Project the la 35 to the guide position (the position indicated by the chain double-dashed line in FIG. 3),
Similarly, by operating the switch on the control panel, the lining device IR
The y-moving base 5 of D is lined with the lining piece 18 and the outer piece 52.
Drive left until you reach the position. Y in this left drive
The roller 6 of the moving base 5 initially rolls on the upper surface of the x moving base 3, but when it comes off the left end of the x moving base 3, the lower plate 8 on the surface plate LB1.
Ride on 1 and roll leftward on the lower plate 81 as it is. y During this drive of the mobile table 5, the central trunk guide devices IGD1, IGD
The guide roller 35 of No. 2 pushes the guide rails 21 and 22 of the central trunk 20 on the y moving table 5 from left and right (FIG. 3) to move the central trunk 20 to the central line (Ys) of the surface plates LB1 to LB7. To match. The left drive of the y-moving table 5 is automatically stopped at the working position where the lining piece 18 is aligned with the position of the outer piece 52. When stopped, the guide rollers 35 of the central trunk guide devices IGD1 and IGD2 are automatically returned to the retracted position. Next, the operator operates a switch on the operation panel (not shown) to move the z-moving table 46 of the double-sided pedestals 31 and 32 of the side plate positioning devices SGD1 to 4 to the boom base assembly position (shown in FIG. 3). position)
And the 2 stroke air cylinder 14 of the lining device IRD is set to the 2nd stroke position (the position where the piston rod is most extended: FIG. 3).

Here, the operator uses the hoist to move the side plate 83,
Outer contact pieces 51, 5 of the side plate positioning devices SGD1 to SGD4
2 and the lining abutment pieces 12 and 18 of the lining device IRD, and stands upright on the lower plate 81, and similarly, the side plate 84 stands upright on the lower plate 81. The longitudinal end portions of the side plates 83 and 84 are pressed against a positioning jig (not shown) mounted on the stopper device 90 for positioning. Next, the operator operates a switch on the operation panel (not shown) to move the lining device I
Push out the piston rods of the air cylinders 10, 11, 16, 17 of the RD. Accordingly, the lining abutment pieces 12, 13, 18, 19 of the lining device IRD push the side plates 83, 84 from the inside to the outside, and the side plates 83, 84 are pushed to the side plate positioning device SGD1.
-Pressing the outer contact pieces 51 and 52 of SGD4 with a constant pressure (air-cylinder pressure) (FIG. 3).

-Mounting the upper plate 82- Next, the operator uses the hoist to attach the upper plate 82 to the side plates 83,
Place on top edge of 84. Next, by operating a switch on the operation panel (not shown), the upper plate positioning devices UGD1, UGD
The second air-cylinder 67 is driven to retract. As a result, the x guide plates 63 and 64 of the upper plate positioning devices UGD1 and UGD2 sandwich the upper plate 82 by the retracting pressure of the air-cylinder 67. Even if the center line (longitudinal direction) of the upper plate 82 deviates from the x position of the reference line Ys, the air cylinder 67 moves the chain 6
5, the center line (longitudinal direction) of the upper plate 82 is the reference line Y.
Match the x position of s. Next, the operator operates a switch on the operation panel (not shown) to move the side plate positioning devices SGD1 to SGD.
The air-cylinder toggle device 53 of GD4 is pressed and biased. This causes the upper plate 82 to move to the side plate 8 as shown in FIG.
The lower plate 81, the upper plate 82, and the side plates 83, 84 are pressed against the plates 3, 84, and are held in a predetermined box shape.

-Temporary Attachment- As shown in FIG. 3, four steel plates (81 to 84) are held in a box shape, and the contact portions of adjacent steel plates extending in the y direction are welded from the outside at required locations. (Temporary welding).
As a result, the beam beam of the beam using the apparatus of this example is used.
This means that the manufacturing of the storage box (temporary attachment of the box) has been completed.

-Removal of Box-When an operator operates an automatic standby switch on an operation panel (not shown), the element on the y-moving table 5 of the lining device IRD is set to the above-mentioned "standby state", and the solenoid device is operated. 76,77
Is turned off and the plunger pins 68 and 69 are fixed to the surface plate L.
The air-cylinder toggle device 53 is returned to the standby state (similar to the state of 54 shown in FIG. 3) below the upper surfaces of B3 and LB7, and the air-cylinder 67 of the upper plate positioning devices UGD1 and UGD2 is moved to the x guide pre-position. The doors 63 and 64 are opened to the standby position, and the y movable table 5 is returned to the standby position (FIGS. 1 and 2). As a result, the entire lining device IRD has returned to the standby state. When the entire inner lining device IRD returns to the standby state, the double-sided pedestals 31 and 32 of the outer lining devices SGD1 to SGD4 are opened to the standby position in conjunction with this. In addition, an individual standby switch for individually returning each of the above-mentioned elements to the standby position is also provided on the operation panel (not shown), and the operator can set the standby position for each element.

The operator then uses a hoist to remove the boxes (81-84) from the overhang device OSD. In addition,
The taken out box is, for example, Japanese Patent Application No. 3-188466.
In the inner welding device presented in Japanese Patent Application No. 3-188467 and Japanese Patent Application No. 3-188467, four steel plates (81 to 84) are firmly integrated by main welding the four corners of the box over the entire length in the y direction. To do.

-Assembling the second, third, top and other boxes of the boom-Assembled with the above-mentioned box for the base of the boom (81 to 84) into a set of booms. Second (2ND),
Assembling the third (3RD) and top (TOP),
It is performed in the same manner as the above-described base assembly. However, when assembling the second (2ND), the plunger pins 70 and 71 are used for positioning the lower plate in the x direction as shown in the rightmost column of FIG. When assembling the third (3RD), the plunger pins 72 and 73 are used for positioning the lower plate in the x direction as shown in the center column of FIG. 5, and the air cylinder 14 is set to the first stroke. .. When assembling the top (TOP), the plunger pin 7 should be used for positioning the lower plate in the x direction as shown in the leftmost column of FIG.
4, 75 are used, and the air-cylinder 14 is set without extension of the piston rod (standby state).

The above is the description regarding the manufacture of the box constituting the main boom. When assembling the box that constitutes the second boom, which is the sub boom, since the shape is small, in the lining device IRD (Fig. 1), x
The movable table 3 (FIG. 2) is retracted by the air-cylinders 4a and 4b to the side (x direction) of the reference line Yi, and the reference line Yi
In place of the x-moving table 3, an x-moving table (not shown) equipped with a lining mechanism similar to the central trunk 20 but having small elements is mounted on the roller 2. .. An air-cylinder toggle device 54 is used instead of the air-cylinder toggle device 53 for the upper plate clamp.

[0034]

As described above, according to the box assembly assisting apparatus of the present invention, the side plates (83, 84) are first positioned in the x direction.
Is automatically driven in the x direction by the x driving means (42 to 43,92) to hold the side plates (83, 84).
The air-cylinder (10, 10) on the y moving table (5, 6) is automatically driven in the y direction on the lower plate (81) on (LB1 to LB7) by the y driving means (7 to 9).
(11/16, 17) automatically reduces the labor of the operator for positioning and holding the side plates (83, 84) corresponding to each box size, and the variation in assembly error Practically gone.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of the present invention.

FIG. 2 is a side view of the embodiment shown in FIG.

FIG. 3 is an enlarged sectional view taken along line 3a-3a of FIG.

4 is an enlarged sectional view taken along line 4a-4a of FIG.

5 is an enlarged cross-sectional view of the lining device IRD corresponding to the cross-section shown in FIG. 3 when assembling the second, third and top of the boom.

[Explanation of symbols]

IRD: liner OSD: liner Yi: reference line of liner IRD Ys: liner OSD
Reference line 1: Base 2: Roller 3: X moving base 4a, 4b: Air-cylinder 5: Y moving base 6: Roller 7: Connecting tool 8: Chain 9: Electric motor unit 10, 11: Air-cylinder 12, 13: Inner liner 14: 2 Stroke air-cylinder 15: Upper stand 16, 17: Air-cylinder 18, 19: Inner liner 20: Central trunk 21, 22: Guide rail -LE LB1 to LB7: surface plate UGD1, UGD2: upper plate positioning device IGD1, IGD2: central trunk guide device SGD1 to SGD4: side plate positioning device 31, 32: double-sided mount 33: y-arm 34: air-cylinder 35: Roller 36: Support arm 37, 38: Guide rod 39, 40: Guide cylinder 41: Base 42: Screw rod 43: Nut 44: Electric motor unit 45: Rotary encoder 46: Z transfer Moving table 46 47: Screw rod 48: Nut 49: Electric motor unit 50: Rotary encoder 51, 52: Outer piece 53, 54: Air-cylinder toggle device 61, 62: Guide rail 63, 64 : X guide plate 65: endless chain 66: pillow unit 67: air-cylinder 68, 69: plunger pin 70 to 75: plunger pin 76, 77: solenoid device 81: lower plate 82: upper plate 83, 84: Side plate 90: Stopper device 92: Screw rod 93: Nut

Claims (7)

[Claims] 1. A pair of mounts that oppose each other in the horizontal x direction orthogonal to the horizontal y direction and at least one of which is movable in the x direction, and a first x that drives the movable mount in the x direction. A side plate positioning device including a driving means; a surface plate for lower supporting a plate body for box construction placed between the pair of pedestals; y on a lower plate for box construction supported by the surface board For moving in the y direction, y driving means for driving the y moving base in the y direction, an air cylinder mounted on the y moving base for driving a piston rod in the x direction, and the air cylinder. An inner liner including an inner cover piece attached to the outer cover; and an outer side in a standing posture supported by the pair of mounts, and the air-cylinder presses each of the pair of mounts through the inner cover piece. Mounted on the upper edges of the two side plates for the box construction And, a top plate for the box structure, sandwiched by the both side edges, one at least opposite to each other in the x-direction x
A box assembly auxiliary device comprising an upper plate positioning device including a pair of side support means movable in a direction and a second x drive means for driving the movable side support means in an x direction. 2. The first x-driving means of the side plate positioning device is connected to the first screw rod having a right male screw screwed to one female screw of the pair of pedestals, and the first screw rod. ,
No. 1 with left male thread screwed to the other female thread of the gantry
2. The box assembly auxiliary device according to claim 1, comprising two screw rods and an electric motor which is connected to one of the first and second screw rods and drives both screw rods to rotate in the same direction at the same time. 3. The second x-driving means of the upper plate positioning device is an air-cylinder in which a cylinder is connected to one of a pair of side supporting means, each of which is movable in the x-direction, and a piston rod is connected to the other. , And an endless loop having two sides extending parallel to each other in the x direction, and one of the pair of side supporting means is connected to one of the two sides.
The box assembly auxiliary device according to claim 1 or 2, further comprising a chain in which the other of the side support means is connected to the other of the two sides. 4. The lining device includes at least a pair of air-cylinders that drive piston rods in opposite directions in the x-direction, and an inner shell attached to the tip of the piston rod. The box assembly auxiliary device according to claim 1, 2, or 3. 5. The box assembly assisting apparatus according to claim 1, further comprising guide means for positioning the y movable table at an intermediate position between the pair of racks. 6. A plunger pin that can move upward and downward on an upper surface of the surface plate to restrict an x position of a lower plate for box construction at a position protruding upward, and the plunger pin upward. The box assembly assisting device according to claim 1, 2, 3, 4, or 5, including a solenoid device for driving to a protruding position. 7. Two pieces for a box structure, which are supported by the pair of mounts in an upright position on the outside and are pressed by the air cylinders by the air-cylinder to each of the pair of mounts. The box according to claim 1, 2, 3, 4, 5 or 6, further comprising upper plate clamp means for pressing down the upper edge facing portion of the upper plate for forming a box on the upper edge of the side plate. Assembly assist device.