JP2880812B2 - Micro joint separation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for connecting a plurality of small works from a large work to a plurality of small joints at a plurality of micro joints, and separating the small joint from a large work mechanically separated from the large work. The present invention relates to a microjoint separation device for separating a work.

[0002]

2. Description of the Related Art First, a micro joint will be described with reference to FIGS.

[0003] A microjoint is a type of punch press working method. When cutting the outer shape of a large number of small products Wa from a large work W, corner joints are used so that the small products Wa being processed are not separated. The portion 101 is set in the X amount (for example, 0.
This is a processing method for jointing. The hatched portion in the figure is a hole 103.

As described above, when a large number of small products Wa are taken from the work W, the time is greatly reduced, and it is effective to maintain the strength of the work W during processing.

The above-mentioned corner portion 1 of the micro joint
In most cases, the work to separate 01 is manually performed after unloading the work W outside the machine, and the work W is shaken down by hand or hit with a plastic hammer or the like to remove the small product Wa.
Had been cut off.

Further, the corner portion 10 of the micro joint is
As a device for mechanically separating 1, for example, Jitsu 1-3
No. 7791 is known. In this known technique, a work that has been subjected to microjoining is placed on a table, and both ends of the work are gripped and tension is applied.
This device separates small products by hitting the upper surface of the work with a rotary hammer.

Further, the one described in JP-A-1-133625 is known. This known technique is an apparatus that separates a small product by cutting a micro joint portion with a sub-cutting punch provided adjacent to a punch die of a punch press.

[0008]

However, in the above-described conventional micro-joint separating means, there is a problem that it is difficult to improve the productivity by manually striking and separating a small product due to heavy labor. As means for mechanically separating the micro joint, the former Japanese Utility Model 1-3779
The apparatus described in No. 1 has a problem that the structure is complicated and the cost cannot be reduced.
Similarly, the device described in the above document has a complicated structure and cannot be reduced in cost. In addition, since it is a processing line configuration, it cannot be retrofitted to a conventional ordinary cell line. Further, since a processing program for a separating punch is added, it takes time, there is a limitation on the product size (for example, 100 mm square or more), and the line length increases (approximately 5 m) and the space increases. there were.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a micro-joint apparatus which achieves productivity by mechanically separating a micro-joint portion by manual operation, and reduces costs with a simple mechanical configuration.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is to punch a large number of small products from a work,
A small product is provided with a plurality of hammer devices provided with a ram on the upper surface of a table on which the workpieces connected by the micro-joint portion are placed. The table was tiltably provided to constitute a microjoint separating apparatus.

Further, in the present invention, the hammer device is provided with a switching member for connecting and separating the hammer portion and the dual stroke cylinder portion, and is provided with a resilient device for urging the hammer portion in a projecting direction. A joint separation device was constructed.

[0012]

By using the micro-joint separating apparatus of the present invention, a large number of small products are punched out, and each small product is mounted on a table with a work connected by a micro-joint portion. Tilt it, and activate the hammer devices arranged on the table. The hammer protrudes from the upper surface of the table by the repelling force of a hammer provided on the hammer device to give an impact to the work, cut off the micro joint portion, and carry out a large number of small products into, for example, a product storage box. The table where the product separation is completed is inclined in the reverse direction, and the remaining frame material is carried out, for example, into a scrap storage box.

Thus, the cumulo-joint can be reliably separated with a simple structure, so that productivity can be improved and costs can be reduced without requiring any manpower.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings.

For easy understanding, first, the overall configuration of a work transfer device in which a table having a microjoint separation device is incorporated will be schematically described.

Referring to FIG. 11, a work transfer device 1
Is composed of a lifter table 3, a material loading device 5, and a microjoint separation device 9 having a table 7.

The lifter table 3 is loaded with a microjoined work W carried by, for example, a forklift or the like, and is provided so as to be vertically movable via a link mechanism 11 by a fluid pressure operated cylinder or the like (not shown). I have. In addition, in order to keep the upper surface position of the loaded work W constant, it is controlled by a detection member such as a photoelectric sensor (not shown).

In the material loading device 5, rails 15 extending along the work transfer direction are suspended from columns 13 provided at a plurality of locations. A support plate 19 on which a plurality of vacuum pads 17 are suspended is provided on the rail 15 so as to be movable left and right (obliquely left and right in FIG. 11).
Note that a mechanical clamp or an electromagnet may be used instead of the vacuum pad 17.

With the above configuration, a large number of small products Wa that have been microjoined are processed and connected to the work W loaded on the lifter table 3. The upper surface of the work W is sucked by the vacuum pad 17 and only one work W on the upper surface is hung, and the support plate 19 is moved to a later-described table 7 by a driving member (not shown), Then, the suction of the vacuum pad 17 is released, and the work W is transferred onto the table 7.

In the microjoint separating device 9, a plurality of hammer devices 23 are suspended from a table body 21 of the table 7, and the upper surface of the hammer 25 of the hammer device 23 is
It is provided with a suitable amount of depression from the upper surface of the table body 21.

More specifically, referring to FIG. 1, FIG. 2 and FIG. 3, the microjoint separating device 9 is provided on a pedestal 27, and the pedestal 27 is provided on a side pillar 27a with an upper beam 27b and a central beam on a lower beam 27c. It is integrally formed with the support 27d. A plurality of bearings 29 are fixed to the upper surface of the upper beam 27b, and a bearing 33 suspended from the lower surface of the table body 21 via a shaft 31 is rotatably engaged with the bearing 29. Is tiltable to the left and right by 45 degrees as shown by the imaginary line in FIG. The drive source for tilting the table body 21 is shown in detail in FIG.

That is, the fork member 39 of the lower cylinder 37a of the dual stroke cylinder, which is the table driving cylinder 37, is provided on the bracket 35 provided on the side surface of the lower beam 27c of the gantry 27 via the shaft 41. And are rotatably engaged. The table driving cylinder 3
7, the fork member 43 of the upper cylinder 37b
Is rotatably engaged via a shaft 47 to an arm 45 locked to the arm 45.

With the above configuration, in order to hold the table body 21 in a horizontal state, the lower cylinder 37a of the table driving cylinder 37 is reduced and the upper cylinder 37b is extended. That is, the table main body 21 is in a horizontal state when the state shown in FIG. When the lower cylinder 37a is extended from this state, the table main body 21 is rotated approximately 45 degrees clockwise in FIG. 1 to be in an inclined state. Further, when the upper cylinder 37b is reduced from the horizontal state, the table body 21 is rotated about 45 degrees counterclockwise in FIG. 1 to be in an inclined state.

As shown in FIG. 3, a large number of free bearings 49 are provided on the surface of the table main body 21, and a large number of hammer devices 23, which are main parts of the microjoint separation device 9, are vertically provided. Have been. The upper surface of the hammer 25 of the hammer device 23 is provided so as to be depressed by an appropriate amount from the upper surface of the table body 21.

The hammer 23 will be described in more detail. Referring to FIGS. 4, 5 and 6 together,
In the hammer device 23, an upper support plate 55 is fixed by a bolt 53 to a flange 51a of a tubular body 51 vertically provided on the lower surface of the table body 21. A plurality of (four in this embodiment) support columns 57 hang down from the upper support plate 55, and a lower support plate 59 is fixed to the lower end (the lower side in FIG. 5) of the support column 57.

The piston rod 63 of the lower cylinder 61a of the dual stroke cylinder 61 is connected to the lower support plate 59. The piston rod 65 of the upper cylinder 61b of the dual stroke cylinder 61 is connected to a guide plate 69 provided integrally with the block 67, and the guide plate 69 is provided with a plurality of guide holes 71 to guide the support holes 57. The hole 71 fits and serves as a guide when the block 67 moves up and down.

With the above configuration, the dual stroke cylinder 6
1, the upper cylinder 61a is extended and the lower cylinder 61a is reduced, and the upper cylinder 61b is reduced and the lower cylinder 61a is extended.
It is possible to obtain three types of strokes in the case where both 61b are extended. For this reason, the position of the block 67 can be changed in three ways in the vertical direction.

A hole 73 is formed in the block 67 in the axial direction, and a notch 75 is provided in a direction perpendicular to the axis of the hole 73. A clutch claw 79 whose one end is pivotally supported by a pin 77 is rotatably provided in the notch 75, and a pin 83 attached to an elongated hole 81 provided at the other end of the clutch claw 79 via a pin 83. The fork member 85 is engaged, and the fork member 85 is engaged with the piston rod 89 of the clutch cylinder 87. The clutch cylinder 87 is fixed to the side surface of the block 67.

With the above configuration, the clutch cylinder 87
By actuating, the clutch pawl 79 can rotate from the position indicated by the solid line to the position indicated by the two-dot chain line as shown in FIG.

In the hammer device 23, a hammer 25 is fixed to a hammer receiver 93 at a tip end (upward in FIG. 4) by a bolt 91. The hammer 25 is made of MC nylon, for example, and has a disk shape. The hammer receiver 93 is fixed and supported on a slide shaft 95, and the slide shaft 95 is attached to a flange 51 a of the cylindrical body 51 by a bolt 97.
Is movably mounted on a bearing 99 (for example, a linear ball bearing or the like) fixed by the above. Then, as shown in FIG. 6, an engagement block 101 is fixed to the lower end (the right side in FIG. 6) of the slide shaft 95,
The engagement block 101 is provided with a contact plate 103 that contacts the flange 99 a of the bearing 99.

Further, the engagement block 101 has an annular groove 1.
The annular groove 105 is provided in the annular groove 105.
Can be freely disengaged. Still further, between the hammer receiver 93 and the upper support plate 55, an elastic machine 107 (for example, a coil spring or the like) surrounding the slide shaft 95 is provided.
Is installed.

With the above configuration, the hammer 25 is constantly urged in the protruding direction by the repelling force of the bullet 107 through the hammer receiver 93, and the abutment plate 103 of the engagement block 101 provided at the lower end of the slide shaft 95 bears. The abutment of the hammer 25 is prevented by abutting against the flange 99 a of the hammer 25.

The operation of the above-described hammer device 23 will be generally described. First, the state shown by the solid line in FIG. 4 is set. That is, the piston rod 6 of the upper and lower cylinders 61a and 61b of the dual stroke cylinder 61
3,65 is the maximum length for stretching. In this state, the clutch cylinder 87 is operated to engage the clutch pawl 79 with the annular groove 105 provided in the engagement block 101.

The engagement of the clutch pawl 79 with the annular groove 105 connects the slide shaft 95 and the dual stroke cylinder 61. Next, the upper and lower cylinders 61a and 61b of the dual-stroke cylinder 61 whose stroke can be adjusted in three stages are determined according to the plate thickness, material, and the like of the microjoined work W to determine and operate.

That is, for example, when the stroke of the lower cylinder 61a is set to 30 mm and the stroke of the upper cylinder 61b is set to 20 mm and only the upper cylinder 61b is operated to reduce the piston rod 65, L shown in FIG.
The upper surface of the hammer 25 is located at 1 (stroke 20 mm). When only the lower cylinder 61a is operated to reduce the piston rod 63, L2 (stroke 30) is reduced.
mm), the upper surface of the hammer 25 is positioned. Further, when the piston rods 63 and 65 of the upper cylinder 61b and the lower cylinder 61a are simultaneously reduced, L3 (stroke 5
0 mm), the upper surface of the hammer 25 can be positioned.

An optimal stroke is set from the three strokes described above, and the clutch cylinder 87 is operated to separate the clutch pawl 79 from the annular groove 105. At the same time as the clutch pawl 79 is separated by the annular groove 105,
The hammer 25 is pushed up by the elasticity of the bullet 107,
It collides with the work W and separates the cumillo joint. Separating the dual-stroke cylinder 61 from the hammer device 23 is to reduce the movable mass and increase the collision speed, and the collision speed uses the bullet 107 compared to the case where a normal air cylinder is used. Can be increased several times. Further, the hammer 25 is made of resin, so that even if the collision speed is increased, the product will not be damaged.

A plurality of (four in this embodiment) stopper members 109 are disposed on one side of the upper surface of the table body 21. More specifically, referring to FIGS. 8, 9 and 10, the stopper member 109 includes a clamp member 111 for clamping the end face of the work W, and the clamp member 111.
And a driving device 113 that accommodates in the table main body 21 or protrudes above the table main body 21.

In the driving device 113, a stopper housing cylinder 115 is provided on the back surface of the table body 21, and one end of the stopper housing cylinder 115 is connected to the table body 21.
And is rotatably engaged with a bracket 117 via a pin 119. Stopper storage cylinder 115
The fork member 123 engaged with the piston rod 121 is engaged with a lever 127 via a pin 125, and is fixed to the lever 127 on a shaft 129 extending in parallel with one side of the table main body 21. Are rotatably supported by bearings 131 provided at a plurality of locations (four locations in this embodiment).

As shown in FIG. 10, the clamp member 111 is fixed to a plurality of positions (four in this embodiment) of the shaft 129 by a support member 133. The support member 133 has a slit 135 formed therein, is provided integrally with the L-shaped bracket 137, and is fixed to the shaft 129 by tightening a bolt 139. A stopper cylinder 141 is provided on the L-shaped bracket 137 with a bolt 143.
A disc-shaped clamp 147 is attached to a tip of a piston rod 145 of the stopper cylinder 141 with a bolt 149. Reference numeral 151 denotes a guide plate, which is located on the upper surface of the table body 21 and is a clamp
An inclined surface 153 is provided at an appropriate position in the vicinity of 11 and is formed on one side to smoothly clamp the work W.

With the above configuration, when clamping one end edge of the work W, when the stopper storage cylinder 115 is operated and the piston rod 121 is projected, the clamp member 111 rotates and the clamp 147 is positioned on the table main body 21. I do. At this time, the clamp 147 is projected by the operation of the stopper cylinder 141. In this state, the work W placed on the table main body 21 is inclined by tilting the table main body 21 so that the work W slides smoothly on the free bearing 49 and hits the piston rod 145 of the stopper cylinder 141 as the clamp member 111. Touch

When one edge of the work W comes into contact with the piston rod 145, the stopper cylinder 141 is operated, and the piston rod 145 is contracted.
7, the upper surface of the work W is held. In this state, the work W placed on the table main body 21 is fixed, so that the work W is impacted by the operation of the above-mentioned hammer device 23, the micro joint portion is separated, and only the small product Wa is carried out.

In order to carry out the frame material Wb remaining after the small product Wa is separated, the small product Wa is carried out, and then the table body 21 is taken out.
Is returned to a horizontal state, and the stopper cylinder 141 is operated to cause the piston rod 145 to protrude. When the piston rod 145 extends, the clamp 147 releases the grip of the work W. Subsequently, the stopper housing cylinder 115 is operated to reduce the piston rod 121 so that the clamp member 111 is retracted from the upper surface of the table main body 21, and the table main body 21 is inclined toward the side where the clamp member 111 is attached. The frame material Wb on which the table body 21 is inclined slides down and is carried out.

A series of operations for separating the microjoint and carrying out the small product Wa or the remaining frame material Wb from which the small product Wa has been separated by the above configuration will be described.

Referring to FIGS. 12 to 15, FIG. 12 shows a state in which a work W on which a small product Wa has been processed is placed on the table 7, and the work W loaded on the lifter table 3 (not shown) is shown. Is sucked by the vacuum pad 17 of the material loading device 5 and transferred onto the table 7. At this time, the table main body 21 of the table 7 is kept horizontal, and the clamp member 111 of the stopper member 109 is erected on the upper surface of the table main body 21 by the operation of the stopper storage cylinder 115. In addition, the upper surface of the hammer 25 of the hammer device 23 is set at a position sunk from the upper surface of the table body 21.

In this state, as shown in FIG. 13, the table body 21 is tilted approximately 45 degrees counterclockwise. When the table body 21 is tilted, the table body 2
The work W placed on the slide member 1 slides on the free bearing 49 and contacts the piston rod 145 of the stopper cylinder 141 of the clamp member 111. Then, the stopper cylinder 141 is operated, and the workpiece W is gripped by the clamp 147 locked to the tip of the piston rod 145.

After the workpiece W is gripped by the clamp 147, the table body 21 is rotated clockwise by about 90 degrees as shown in FIG. Then, the hammer device 23 is actuated to give an impact to the work W by the repelling force of the elastic machine 107 provided on the hammer device 23. When this operation is repeated a predetermined number of times, the small product Wa connected at the micro joint portion is separated. Then, it falls into the product storage box 155 and is stored.

When the separation of the small product Wa is completed, the table main body 21 is turned counterclockwise (not shown) so as to be in a horizontal state, the gripping of the work W by the clamp member 111 is released, and the stopper storage cylinder 115 is released. Is operated to rotate and retract the clamp member 111 below the table body 21.

Subsequently, as shown in FIG.
When the table body 21 is further tilted about 45 degrees in the counterclockwise direction, the frame material Wb from which the small product Wa on the table body 21 is separated and carried out slides down into the scrap storage box 157 and is accumulated.

When the frame material Wb is carried out into the scrap storage box 157, the table body 21 is rotated clockwise approximately 45 degrees to return to a horizontal state, and a series of microjoining separation steps is completed.

As described above, the impact source 10
7, the collision speed can be increased, the microjoint portion can be reliably separated, and the small products Wa can be carried out and accumulated, so that productivity can be improved without requiring any manpower. Further, since the hammer device 23 for separating the micro joint portion includes the dual stroke cylinder 61 and the ammunition 107 which are commercially available as main members,
The structure is simple and the cost can be reduced.

The present invention is not limited to the above-described embodiment, but can be embodied in other modes by making appropriate changes.

[0052]

As will be understood from the above description of the embodiments, according to the present invention, a small product subjected to microjoining by a repelling force of a ram provided in a hammer device is separated from a workpiece by impact. Then, the table is tilted to separate small products or small products, and the remaining frame material is carried out.

Thus, the microjoint can be separated with a simple structure, and the cost can be reduced. Also,
By automatically operating the machine, productivity can be improved without requiring any manpower.

[Brief description of the drawings]

FIG. 1 is a side view of a microjoint separation device, showing a main part of the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a plan view of FIG.

FIG. 4 is an enlarged sectional view taken along line IV-IV in FIG.

FIG. 5 is an enlarged sectional view taken along line VV in FIG.

FIG. 6 is a sectional view taken along the line VI-VI in FIG.

FIG. 7 is a sectional view taken along line VII-VII in FIG. 2;

FIG. 8 is a partially enlarged rear view taken along line VIII-VIII in FIG. 2;

FIG. 9 is an enlarged sectional view taken along line IX-IX in FIG.

FIG. 10 is an enlarged sectional view taken along line XX in FIG. 8;

FIG. 11 is an explanatory perspective view of a work transfer device according to an embodiment of the present invention;

FIG. 12 is an operation explanatory view showing a first step of the embodiment.

FIG. 13 is an operation explanatory view showing a second stroke of the embodiment.

FIG. 14 is an operation explanatory view showing a third step of the embodiment.

FIG. 15 is an operation explanatory view showing a fourth step of the embodiment.

FIG. 16 is an explanatory diagram of a micro joint.

FIG. 17 is an enlarged explanatory view of a micro joint part in FIG. 16;

[Explanation of symbols]

 7 Table 9 Micro-joint separation device 21 Table body 25 Hammer 107 Ammunition

Claims (2)

(57) [Claims] 1. A plurality of small products are punched out of a work, and a plurality of small-sized products are connected to each other by a microjoint. A microjoint separation device, wherein an upper surface of a hammer of the device is provided so as to be able to protrude and retract from an upper surface of the table, and the table is provided so as to be tiltable. 2. The hammer device according to claim 1, further comprising a switching member for connecting and separating the hammer portion and the dual-stroke cylinder portion so that the hammer portion can be freely separated from the dual-stroke cylinder portion. The microjoint separation device according to claim 1.