JPS6138845A - Magazine structure for containing curved member - Google Patents

Abstract

PURPOSE:To stack curved members efficiently by providing a guide member for guiding the through-hole made through a portion of curved section in the containing case of curved member. CONSTITUTION:A case 1 for containing curved members 11 while stacking vertically is provided while a magazine 1 for containing curved members 11 composed of guide member 103 to be guided by the through-holes 12 made at a portion of curved section of the curved member 11 is provided. With such arrangement, the curved members such as a semicircular bush can be contained at a touch without shifting.

Description

Detailed Description of the Invention [Field of Industrial Application] This Q-mei is a curved bushing used in an automatic semicircular bushing assembly device that fits a half-shaped bushing to the open end of a member such as an engine connecting rod. This invention relates to the structure of a magazine that stores members.

[Conventional technology]

As shown in FIGS. 16(a) and 16(b), a half-split semicircular bushing 11 is fitted into the bearing portion 10a at the lower end of the connecting rod 10 of the engine. Although not clearly shown in the drawing, the semicircular bushing 11 includes a locking portion 13 that fits into a groove formed in the bearing portion 10a, an oil filler 12 formed through the bearing portion 10a at a certain position, and an oil filler 12.
A semicircular groove or the like is formed to communicate with the locking portion 13, and the locking portion 13 is locked in the groove and is fitted into the bearing portion 10a by its own elastic force.

Conventionally, the work of assembling curved members such as the semicircular bush 11 has generally been carried out only manually, but recently the assembly has been automated. When automating assembly, curved members such as semicircular bushings are first stacked and stored in a storage case.

[Problem that the invention seeks to solve]

However, when stacking curved members such as semicircular bushings on an arc and storing them in a storage case, if you try to put them into the storage case frame with both sides pressed down, they will slide against each other in the curved part and the There is a problem that the curve is not constant and shifts in the direction of the curved portion. When attempting to automatically assemble this curved member, the portion to be gripped cannot be gripped at a fixed position because the posture is not determined.

The purpose of the present invention was proposed in order to solve the problem in view of the above circumstances, and to efficiently stack curved members such as semicircular bushes so that the curved members can be stored with one touch without shifting. An object of the present invention is to provide a structure of a magazine that accommodates a curved member.

[Means and effects for solving the problems] In order to achieve the above object, the present invention provides a storage case for vertically stacking and storing curved members, and a storage case provided in a part of the curved portion of the curved member. The magazine is characterized by the structure of a magazine that houses a curved member that includes a through hole or notch and a guide member that is guided by the through hole or notch. By using the present invention, the curved members can be stacked efficiently and the curved members will not be displaced from each other.

〔Example〕

Embodiments of the present invention will be described below based on the drawings. 1st
The overall configuration of this embodiment is shown in FIG. 2 and FIG. The automatic assembly device includes a magazine 1 for storing semicircular bushes 11, a magazine positioning means 2 for arranging a plurality of magazines 1 on the circumference and positioning the magazines at predetermined index positions, One semicircular bush 1 from inside magazine 1
The unloading means 3 separates the semicircular bushing 11 and sequentially transports it to a predetermined position.
0 side and is mounted in the shaft bearing 10a (FIG. 16(C)) in a gripped state; and member fixing means 5 that positions and fixes the transferred connecting rod 10 at a predetermined assembly position. Consists of etc.

The assembly means 4 and the member fixing means 5 are attached to the base 14 of the device.
The conveyance means 3 is disposed above the assembly means 4 in the figure, and the magazine positioning means 2 is disposed above the conveyance means 3 in the figure.

Each of the above-mentioned means of the apparatus will be sequentially explained below.

First, the magazine 1 will be explained.

As shown in FIG. 3(a), the magazine 1 is formed from a transparent, elongated box 101, and has a structure that can be opened and closed using a hinge 102. There are many semicircular bushes 1 inside.
1 are stacked with their open sides facing downward, and one wire 103 is passed through an oil container 12 drilled through a semicircular bush and arranged and stored. The semicircular bushing 11 is removed from the lower open end of the box, but the bottom cover 104 shown in FIG.
05 to prevent it from coming off.

Further, support fittings 107 are formed through the guide holes 106 at the top and bottom of the box body 101. ! 08 is fixed.

Next, the magazine positioning means 2 will be explained.

As shown in FIG. 5, a large number of magazines 1 containing semicircular bushes 11 are supported by a lower disk 201 and arranged at equal intervals on the same circumference. As shown in FIG. 6, the magazine 1 is positioned by inserting the through hole 106 of the support fitting 108 into the guide pin 202 implanted on the same circumference of the lower disk 201, and is also placed in parallel with the disk 201. The through hole 106 of the support fitting 107 is inserted into the guide pin 204 installed in the upper disk 203, and the position is fixed. Upper disk 20
3 and the lower disk 201, a support 205 is installed, and a shaft portion 205a extending further downward of the support 205 is a support base 206.
is pivotally supported on a support shaft 207.

As shown in FIGS. 1, 2 and 5, the upper disk 20
A driving means (detailed explanation will be omitted) 208 is mounted on the magazine 3 for rotating the arranged magazines 1 around the support shaft 207 and for positioning the magazines 1 at a predetermined index position.

As shown in FIG. 7, a groove 206a having an appropriate width narrower than the diameter of the semicircular bush 11 is formed in a part of the support base 206. The above predetermined index position is the groove portion 206a.
This corresponds to a state in which the magazine 1 is positioned astride the top. The magazine 1 positioned on the groove 206a is held at this position until the semicircular bushing 11 stored therein becomes empty.

Next, the carrying out means 3 will be explained.

As shown in FIG. 6, the block 301 is fixed to the lower surface of the support base 206 in the figure with bolts 302, and as shown in FIGS. It is provided. A semicircular bush 1 is attached to one end of the eccentric shaft 303 relative to the rotation axis of the eccentric shaft 303.
An eccentric portion 303a that is eccentric by approximately the same amount as the thickness of the second plate is formed, and a shaft portion 303b that is not eccentric is loosely inserted into the straddle plate 304. The straddling plate 304 is formed from a rectangular shape that extends in the width direction of the block 301, and is perpendicular to the width direction in the vicinity where the shaft portion 303b is loosely inserted, on the upper side in the figure (FIG. 6).
A bracket 304a that protrudes is integrally formed.

One end of a swinging member 305 is rotatably supported by this placket 304a via a pin 322.

As shown in FIGS. 7 and 8, the swinging member 305 is attached to the support base 2.
A piece 306 is inserted in the groove 206a of 06, and a piece 306 having a single shape corresponding to the arc of the semicircular bush 11 is fixed at the other end by a port 307. It is in close contact with the semicircular bushing 11 at the lowermost end. As shown in FIG. 8, the lowermost semicircular bush 1 supported by the piece 306 is supported floating above the support base 206 by exactly the thickness of the bush.

Further, as shown in FIGS. 6 and 8, a bracket 305a that protrudes downward is integrally formed in the middle part of the swinging member 305, and a guide roller 308 is attached to the protrusion 305a with a predetermined gap therebetween. , 309 are pivotally attached, and an eccentric shaft 303a is inserted into the gap and supported by both.

As shown in FIG. 9, a motor 3 is attached to the other end of the eccentric shaft 303.
10 (such as a pulse motor or servo motor) is connected to rotate the eccentric shaft 303.

Also, on the outer periphery of the eccentric shaft 303, there is a stopper square piece 311°3.
12 is fixed, and the stopper rod 3 is supported by a spring 313 on the block 301 as shown in FIG.
14.315 limits the rotation angle.

As shown in FIG. 9, the block 301 is formed with a hole 317 into which a piston rod 316 disposed parallel to the eccentric shaft 303 is loosely inserted, and a bush hole 319 into which a guide shaft 318 is slidably supported. .

Piston rod 316. One end of the guide shaft 318 is fixed to the straddle plate 304, and a cylinder 320 is provided at the other end of the piston rod 316.
16 is reciprocated. Further, a dog 321 for position detection is adjustably screwed onto the guide shaft 31B.

With the above configuration, the rotation of the eccentric shaft 303 causes the swinging member 305 to rotate by an amount equivalent to the plate thickness of the semicircular bushing 11, and the lowermost semicircular bushing 11 moves downward by that amount and onto the support base 206. It comes in contact with and becomes ready for export. Next, by moving the piston rod 316, the semicircular bushing 11
is carried out to a predetermined position.

Next, the assembly means 4 will be explained.

As shown in FIGS. 10 to 13, a support 401 is placed on the base 13, and a block 402 is slidably supported by a guide shaft 403 fixed to the support 401 and reciprocated by a cylinder 404. . As shown in FIG. 10, a rotating shaft 405' of a podium 405 is connected to a bearing 406, 40 at one end of the five member fixing means of the block 402.
(shown in FIG. 12) and is rotatably supported.

A pinion gear 408 is fixed to one end of the body 405, and the pinion gear 408 meshes with a rack bar 409 that is slidably supported by the block 402. Rank par 4
A cylinder 410 for reciprocating this is connected to 09 (FIG. 10).

Also, a positioning stay 41 fixed to the block 402
The end of the rack shaft 409 comes into contact with a stopper 412 that is adjustable and screwed onto the rack shaft 409, thereby positioning the rack shaft 409. To position the rack bar 409 in the opposite direction to the above, use the rack bar 409.
A stop collar 413 adjustably screws onto the end of the
This is done by bringing the block into contact with the side surface of the block 402. block 4
02 and the rack bar 409 are reciprocated by the dog 414,
415 (shown in FIG. 1).

In Fig. 12, a pair of claws 4'16 and 417 are inserted between a pair of support plates 405405'' provided above the body, and pins 419 are fixed on both sides between the pair of support plates 405'' and 405''. has been done.

The pair of pawls 416 and 417 are provided so as to be able to pivot relative to each other around a pin 419, and the tip gripping portions of the pawls are configured to be slightly narrower than the diameter of the semicircular bushing when closed. , slightly elastically deform the opening of the semicircular bushing downward and grasp it. One end of a link plate 318 is pivotally attached to the other end side of the claws 4.16, 417.

A piston rod 420 is provided within the body 405 in a direction perpendicular to the rotation axis 405'.
A cam plate 421 is connected to the ends of the claws 416 and 417 of 20 via a link plate 418. The cam plate 421 has two vertical holes 4 parallel to the axial direction of the piston rod 420.
21a is formed, and an inclined portion 421b that slopes inward is formed at the upper part of this vertically elongated hole 421a.

Furthermore, an elongated through hole 418a that is perpendicular to the elongated hole 421a of the cam plate 421 is bored inside the pin 419 of the pair of support plates 405''.
Both ends of the pin 422 are movably supported.

A link plate 418 is pivotally supported at the rear ends of the pair of claws 416 and 417 via a pin 422', and a pin 422 is fixed to the other end of the link plate 418.
a is engaged with the inclined portion 421b.

At the center of the piston rod 420 is a first piston rod 4.
20a is formed, and the first piston rod 420a is slidably inserted into a first cylinder chamber 423 formed in the upper part of the body 405.

A second piston 424 is slidably inserted into a rond portion 420c extending from the first piston rod 420a to the side opposite to the cam plate 421 (downward in FIG. 12), and the second piston 424 is slidably inserted into the first cylinder chamber 423. A second cylinder chamber 42 is connected to the lower body 405 and coaxially with the rod 420c.
5 is formed, and a second piston 424 is slidably inserted into this second cylinder chamber 425.

Note that the cross-sectional area of the second cylinder chamber 425 is larger than that of the first cylinder chamber 423.

In FIG. 12, the second piston 424 is
A passage 426 communicates with the cylinder chamber 425 on the first piston 423, a passage 427 communicates with the space 425' between the first and second cylinders 423, 425, and a passage 427 communicates with the first cylinder chamber 425 on the first piston 423. Passages 428 are in communication with each other.

These passages 426, 427, 428 communicate with a power source (not shown).

Dogs 429 and 430 are adjustably screwed onto the lower side of the rond portion 420c, and limit switches 431 and 432
, 433 to detect the reciprocating position of the piston 420. In addition, limit switches 4.31, 432, 4.3
3 is fixed to a support plate 434 fixed to the lower part of the body 405.

As will be explained in detail later, the piston rod 420 with the above configuration
By reciprocating, the pawls 416 and 417 open and close, gripping the semicircular bushing 11, and making it possible to press and fit the connecting rod 10 with the extrusion portion 421'.

As described above, by rotating the body 405 around the rotation shaft 405' while being gripped by the claws 416 and 417, the semicircular bush 11 is transferred to the connecting rod 10 side, and the block 402 is moved to the connecting rod 10 side. The assembly work is performed by moving forward and pressing with the pressing block 421'.

Next, the member fixing means 5 will be explained.

As shown in FIG. 10, a stand 501 for supporting the connecting rod 10 is placed on the base 14 and positioned near the rotating position of the body 405 of the assembly means 4. connecting rod 10
is carried onto the stand 501 by a transport device (not shown). Figure 14.

As shown in FIG. 15, a pressing plate 513 fixed to one end of the clamp rod 502 is removably engaged with the bearing portion 10a of the connecting rod 10 positioned on the stand 501.
The connecting rod 10 is positioned and fixed. The clamp rod 502 is slidably supported by a guide portion 503a of a stand 503 placed on the base 14. Further, links 504, 505, and 506 are connected with pins and installed between the clamp rod 502 and the stand 503. For more information,
One end of the link 504 is pivotally connected to the clamp rod 502, and the other end is pivotally supported by a metal fitting 503b fixed to the stand 503. One end of the link 505 is pivotally connected to the link 504, and the other end is connected to the link 5
It is pivotally connected to 06. Note that a groove 504a is recessed in the engagement surface of the link 504 on which one end of the link 505 is pivotally supported, and the movement of the link 505 is restrained. link 506
is formed from a two-pronged lever, and the pronged portion has a pin 50.
7 on a stand 503, one end of which is pin-coupled to a link 505, and a roller member 508 is attached to the other end. The guide roller 508 is shaped like a drum. In addition, in the direction of rotation of the link 506, a spring 509 that biases the link 506 and the stand 5 in a direction that resists this rotation is applied.
Interposed between 03 and 03. Further, the link 506 operates in synchronization with the positioning of the connecting rod 10, as shown in the figure. Guide member 5 with transfer bar 510 at the two-dot chain line position
08 and rotates to the solid line position from the two-dot chain line position to the solid line position. This rotation moves the links 505' and 504, and the positioning rod 50
2 is formed to fixedly position the connecting rod 10.

A dog 511 is adjustable and attached to the other end of the positioning rod 502, and a limit switch 512 fixed to the stay 503 comes into contact with the dog 511.

Next, the operation of this embodiment will be explained.

When the magazine 1 is positioned at a predetermined index position by the magazine positioning means 2 and the lid 104 is pulled out from the box body 101, the semicircular bush 11 at the lowermost end becomes a piece of the carry-out means 3. 306, it is held at a position above the upper surface of the support base 206 by an amount corresponding to the plate thickness of the semicircular bush 11. Next, rotate the motor 310,
When the eccentric portion 303a is rotated, the swinging member 305 rotates as shown by the dotted line at the 10th TgJ, and the lowermost semicircular bush 11
becomes ready for removal. Therefore, when pressure medium oil pressure is introduced into the cylinder 320 and the straddle plate 304 is moved by the piston rod 316, the swinging member 305 (FIG. 6) separates only one semicircular bush 11 and moves to a predetermined position of the assembly means 4 ( between the claws 416 and 417). At this time, the next second semicircular bush 11 falls to a position where it contacts the upper surface of the support base 206. The transported semicircular bush 11 is held by the claw 41.
After being transferred to the 6.417 side, the swinging member 305 returns in a rotated state and contacts the second semicircular bush 11.

Here, when the motor 310 is rotated in the reverse direction, the semicircular bush 11 is supported in a state separated from the support base 310 by the thickness of the plate.

These operations are confirmed by the dog 321 and automatically repeated by a control means (not shown), and when the semicircular bush 11 in the magazine 1 becomes empty, the next magazine 1 is positioned at the index position.

When the semicircular bushing 11 is carried into the predetermined position of the assembly means 40, the claws 416 and 417 are held open as shown in FIG. That is, the pin 422 of the link plate 418 is inserted and positioned in the oblique groove 421b of the cam plate 421, and the piston rod 420 is held in the lowest position. Specifically, pressure oil flows from the passage 428 to the first cylinder chamber 4.
23, the first piston 420a is lowered to the lowest end, and the second piston 424 that comes into contact with the first piston 420a is also held lowered to the lowest end. Next, from the passage 427 to the second cylinder chamber 4 on the lower side of the second piston 424.
When pressure oil is introduced into the piston 25, the second piston 424 is pushed upward, and the first piston 420a moves upward and stops at a position where the pressures are balanced (as shown by the dotted line A).

In this state, the pin 422 is attached to the inclined portion 421b of the cam plate 421.
The link plate 418 is pushed outward by that amount, and the claws 416 and 417 rotate about the pin 419 in the direction of closing the tip. As a result, the semicircular bush 11 is held in a slightly elastically deformed state.

Next, operate the cylinder 410 to move the rack shaft 409 to the 10th position.
When moving to the left in the figure, the rack shaft 409 and pinion gear 408 engage with each other, causing the rack shaft 405 to rotate counterclockwise in the figure, pushing the semicircular bush 11 held by the claws 416 and 417 into two.
It rotates toward the connecting rod 10 as shown by the dotted chain line and is positioned at a predetermined assembly position.

On the other hand, as described above, the connecting rod 10 is conveyed by a transport device (not shown) and is fixed at a predetermined position by the member fixing means 5. In this state, the bearing portion 10a of the connecting rod 10
and the semicircular bush 11 are positioned to face each other. Next, the cylinder 404 of the assembly means 4 is operated to horizontally move the block 402 toward the connecting rod 10 (FIG. 10).

At the same time, pressure oil is introduced into the passage 247 of the assembling means 4, and pressure oil in the passage 428 is removed.
0 further advances upward in the figure and comes to the position indicated by dotted line B. That is, the pin 422 moves parallel to the vertical groove 421a of the cam plate 421, and the semicircular bush 11 remains gripped by the claws 416, 417, and the pressing part 421, which is provided integrally with the cam, moves forward. When it comes into contact with the semicircular bushing 11, the bushing 11 is squeezed from the claw and the connecting rod bearing is pushed out to the part 10a.
It is loosely inserted into a. After the assembly is completed, the body 405 is rotated in the opposite direction and the block 402 is returned to its original state, thereby maintaining the original state. Connecting rod 10 fitted with semicircular bushing 11
is transported to the next process side by the above-mentioned transport device.

The above operations are performed by dogs 321, 414, 415°429.
430, and synchronous control is performed.

As is clear from the above description, the present invention provides the following effects.

(1) Curved members such as semicircular bushings are aligned by passing a guide member such as a wire through the existing oil container, so that they are stored neatly in the magazine, preventing displacement and allowing smooth removal.

(2) Curved members such as semicircular bushes are reliably separated one by one.

(3) Fitting of curved members such as semicircular bushes is automatic and
Work efficiency is improved because transportation can be carried out reliably.

(4) The guide member that guides the through hole 12 of the curved member such as a semicircular bushing prevents it from shifting (remove the magazine that allows accurate feeding and load the curved member such as the semicircular bushing outside the machine) be able to.

[Brief explanation of drawings]

FIG. 1 is a front view showing the overall configuration of one embodiment of the present invention, and FIG.
The figure is a side view of FIG. 1, FIG. 3+8+ is a front view of the magazine of the embodiment, FIG. 3(b) is a side view of FIG. 3(a),
Figure TO) is a top view of Figure 3 (al), Figure 3(d) is a top view of Figure 3 (al).
FIG. 4 is a plan view showing the cover of the magazine; FIG. 5 is a top view of FIG. 1; FIG. 6 is a side view showing the positioning means and conveyance means of the embodiment; The figure is in Figure 6.
-■A plan view in the direction of the arrow, Fig. 8 is a side view in the direction of the 11 is a side view taken in the direction of arrow XI in FIG. 10, FIG. 12 is a sectional view taken along the line xn-xn in FIG. Fig. 14 is a front view showing the member fixing means of the embodiment, Fig. 15 is a side view taken in the direction of the XV arrow in Fig. 14, Fig. 16 (al is a front view of the connecting rod, Fig. 16 (bl is its side view) 1...Magazine 2...Magazine positioning means 3...Carrying out means 4...Assembling means 5...Member fixing means 10.・Conrod 1
0a...Bearing part 11...Semicircular bushing 12.
... Oil filler 13 ... Locking part 14 ... Base stand 103 ... Wire 104 ... Lid 107.108 ... Supporting metal fittings 201 ... Lower disk 203 ... Upper disk 202
．． 204...Guide pin 205...Strut 206...Support stand 206a
...Groove portion 207...Support shaft 208...Driving means 301...Block 3b3...Eccentric shaft
304... Straddling plate 305... Swinging member 306
... Pieces 308, 309... Guide roller 310... Motor 316... Piston rod 31B... Guide shaft 320... Cylinder 322... Pin 401-...
・Supporting metal fittings 402...Block 403...Guide shaft 4o゛4...Cylinder 405...Body
408... Pinion gear 409... Rack par 410... Cylinder 411... Positioning stay 412... Stop bolt 416.417... Claw 418... Link plate 420
... Piston rod 421 ... Cam plate 421a ... Vertical hole 421
b... Inclined portion 422... Pin 420a... First piston 423... First cylinder chamber 424... Second piston 425... Second cylinder 426, 427, 428... ...Aisle 501...Stand 502...Clamp Pro 7
503...stand 504, 505, 506...link 508...guide roller 510...transfer bar 513...tightening plate Fig. 18(a) -2t

Claims (1)

[Claims] Consisting of a storage case for vertically stacking and storing curved members, a through hole or cutout provided in a part of the curved portion of the curved member, and a guide member guided by the through hole or cutout. A magazine structure that houses a curved member characterized by: