JPS634379Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotating device for a connector holding claw opening/closing mechanism used in an automatic connector insertion device that automatically inserts a connector into a predetermined insertion hole of a substrate such as a printed circuit board.

The connector is a small electronic component having a shape approximately as shown in FIGS. 1A, 1B, and 1C, and consists of a main body 1 and a plurality of legs 2 and 3 provided above and below. Each leg 2, 3 is formed by a metal conductor that penetrates the main body 1, and the number of legs is often about 2 to 10. The legs 2, 3 are arranged in a row in the longitudinal direction, and the length varies depending on the number of legs. are different. Connectors have different orientations, up and down with respect to the directions of the legs 2 and 3, and different sizes of margins in the width direction, so it is necessary to distinguish between the orientations when attaching the connectors. In order to schematically indicate the orientation of the connector in a plane perpendicular to the legs 2, 3, the state as shown in FIG. 1c will be indicated by symbols as shown in FIG. 1d. That is, the longitudinal direction is shown by two parallel sides, and the difference in the width direction is shown by the long side and short side. Note that the direction of the short side in the width direction will be referred to as direction 5 of the connector 4.

Electronic components inserted and mounted on the printed circuit board 6 are mounted in various orientations, and the connectors also have 4X orientation, 4X' orientation, and Y orientation as shown in FIG. It can be mounted in various orientations such as 4Y' and 4Y'.

Conventionally, connectors are inserted into printed circuit boards manually, but the work speed is limited due to the small size of the connectors, which makes it difficult to handle, and the difficulty of distinguishing the orientation before inserting. This method is slow and has the risk of being inserted in the wrong direction, resulting in extremely poor workability and reliability. Also, automatic insertion has been attempted, but no one has been found that has high speed, high workability, and high reliability.

Therefore, in order to perform high-speed, high-reliability automatic connector insertion, it is essential that all components have high-speed and high reliability. ,
It is necessary to rotate at speed and accurately in accordance with the program, but there have been no conventional ones that are high speed and highly reliable.

In contrast to the pin and rack type rotation mechanism, the present invention has a striker that pushes the rack at the tip of a swinging arm driven by a cam on the main shaft so that it can swing relative to the swinging arm. A connector that can quickly and reliably change the orientation of the connector without affecting the operation of other components that are driven by it, making it possible to realize a high-speed, highly reliable automatic connector insertion device. The object of the present invention is to provide a rotating device for a holding claw opening/closing mechanism.

The present invention supports a sleeve to which a connector holding claw opening/closing mechanism is fixed, rotatable around a vertical axis and movable up and down, and a pinion is provided on the outer periphery of the sleeve, which engages with the pinion and is supported so as to be movable horizontally. A striker is provided at the tip of an arm that is swung by the main shaft cam, and is provided with a rack that is biased in one direction by a spring, and that pushes the rack against the force of the spring. This is a rotating device for a connector holding pawl opening/closing mechanism, characterized in that the connector holding pawl opening/closing mechanism is provided so as to be swingable.

The present invention will be explained with reference to the drawings based on examples.
In the plan view of Fig. 3, 7 is a connector supply section, 8
A, 8B, 8C, 8D, and 8E are supply stations 9A, 9B, and 9, respectively, which supply different types of connectors.
This is a feeder that feeds each of C, 9D, and 9E one by one in a predetermined constant orientation. To simplify the explanation of the concept, we will not consider the differences between the types of connectors. Reference numeral 10 denotes a movement path of the holding mechanism, through which a plurality of connector holding mechanisms (24 in the figure) provided in the transfer section pass, and is a circumference centered on the center 11. The holding mechanism is arranged to move intermittently at each pitch (in the figure, 1/24th of a circumference).

13 is a rotating station, 14 is a transfer station, and 15 is a return rotating station, and a transfer section 16 is provided including these three stations. 17 is an insertion portion, and 18 is an insertion position. Reference numeral 19 denotes a printed circuit board, which can be moved in any direction in the horizontal plane in the directions of X, X', Y, and Y' shown in the figure.

Regarding the direction of rotation, for convenience of explanation, in this specification, the clockwise direction is described as positive and the counterclockwise direction is described as negative, but the counterclockwise direction may also be described as positive.

Each supply station 9A, 9B, 9C, 9D,
At 9E, the signals are supplied in a predetermined order by a program or manual operation. At this time, the connector 4 is supplied in a state in which it is oriented in the direction of movement of the arrow 12 in the circumferential direction. The connector 4 that has moved along the moving path 10 is rotated along the X axis and Y at the rotating station 13.
+ around an axis perpendicular to the axis (referred to as the Z axis)
Can be rotated 90 degrees or -90 degrees. In FIG. 3, the connector 4 on the rotating station 13 is -
The connectors 4 on the transfer station 14 are rotated 90 degrees to face radially outward, and the connectors 4 on the transfer station 14 are rotated +90 degrees to face radially inward (Y direction).

At the delivery station 14, the connector 4 is delivered to the insertion section 17 while maintaining the same orientation. In this case, the insertion direction of the connector 4 is the Y direction, so the connector 4 is inserted into the printed circuit board 19 as it is without rotation (rotation angle of 0 degrees) at the insertion part 17.

At the return rotation station 15, the holding claw of the connector rotated at the rotation station 13 is rotated so as to return it to its original orientation.

4. Cases requiring insertion in other orientations
This will be explained with reference to figures a, b, c, and d.

Figure a shows the same process as in Figure 3. In the same figure b, in order to make it in the X direction at the insertion position 18,
This shows that the rotating station 13 rotates +90 degrees, and the insertion portion 17 further rotates 90 degrees on one side, for example, -90 degrees. In the same figure c, in order to make it in the Y' direction, the insertion part 1 is rotated at -90 degrees at the rotation station 13.
7 indicates rotation by 0 degrees (ie, no rotation). Figure d shows that the rotating station 13 is rotated by -90 degrees and the insertion portion 17 is rotated by -90 degrees in order to make the X' direction. A structure in which one side of the insertion portion 17 is 90 degrees may be +90 degrees.

By rotating the rotation station 13 by ±90 degrees in advance in this manner, the insertion portion 17 can be rotated by a maximum of 90 degrees as the rotation range. If the rotation operation is performed only by the insertion part 17, the rotation range must be 270 degrees in order to arbitrarily select the directions X, X', Y, Y', and the insertion part 17 has a complicated structure. It is difficult to configure the device to rotate over such a wide range. In contrast, in the present invention, by dividing the rotation operation into two, the rotation angle at the insertion part 17 is small, the structure is simple, the operation is simple and fast, and the orientation can be selected from the program. Since this can be reliably carried out by instructions or instructions by manual operation, automatic insertion of the connector can be carried out at high speed, with high workability, and with high reliability.

The present invention will be described in more detail with reference to embodiments and drawings.

In FIG. 5, FIG. 6, FIG. 7, and FIG. 8, to explain the whole, a frame part is composed of a base part 20, a column part 21, and an arm part 22, a transfer part 23, a delivery part 1
6. Supports the insertion section 17 and the table section 24. 8A, 8B, 8C, 8D, and 8E are feeders that store connectors of different types (eg, number of legs, etc.) and feed them one by one in a predetermined orientation, and a vibrating feeder or the like is used.

The transfer section 23 includes a holding mechanism 2 that holds the connector.
5 are arranged at equal intervals (1/24th of the circumference in the figure) on the same circumference (coinciding with the movement path 10), and this rotary table 26 is arranged at the pitch of the holding mechanism 25 (24th of the circumference in the figure). It is provided with an intermittent rotation mechanism 27 that rotates intermittently every 1 circumference.

The holding mechanism 25 includes a pair of clamping claws 28 that clamp the connector, and the clamping claws 28 rotate at +90 degrees around the Z axis.
It is supported so that it can be rotated to -90 degrees and moved up and down in the Z-axis direction. Supply station 9A, 9
On top of B, 9C, 9D, 9E are cylinders 29A,
29B, 29C, 29D, and 29E are provided, and by pushing out the rod, the clamping claws 28 are lowered to clamp the connectors supplied from the feeders 8A, 8B, 8C, 8D, and 8E.

The transfer section 16 is equipped with cylinders 30 and 31 as rotation mechanisms for the rotation station 13, and the holding claws 28 can be rotated by pushing one of two racks provided on both sides of the pinion to rotate the pinion, for example. It is designed to rotate +90 degrees or -90 degrees around the Z axis. A cylinder 32 is provided above the transfer station 14, and by pushing out the rod, the clamping claws 28 are lowered so that the connector is clamped by the transfer mechanism 33. The delivery mechanism 33 holds the connector and
It moves in the Y' direction and transfers the connector to the holding claw 34 of the insertion section 17.

The insertion part 17 is provided with a rotary part 35 that can be raised and lowered relative to the frame and rotatably supported around the Z axis, and a connector holding claw 34 and a connector holding claw 34 that are supported at a mutual interval and can be opened and closed are provided at the lower end of the rotary part 35. , a push rod 36 is provided that pushes approximately the center of the top surface of the connector.

The table section 24 includes a table moving mechanism 37 that holds the printed circuit board 19 and positions a predetermined insertion hole of the printed circuit board 19 at the insertion position 18 directly below the insertion section 17, and a predetermined leg of the inserted connector. A bending mechanism 38 is provided for bending the printed circuit board 19 from the back surface thereof.

To explain the overall function, feeder 8A
The connector supplied from etc. is cylinder 29A
The moving passage 10 is held by the holding claws 28 pushed down by the rotation table 26, and
is transferred along the rotation station 13 and rotated by +90 degrees or -90 degrees by the action of the cylinders 30 and 31, and the transfer station 14
, it is pushed down by the cylinder 32 and held again by the delivery mechanism 33, and further inserted into the insertion portion 17.
It is positioned between the holding claws 34 of. After that, the holding claw 34 closes to hold the connector, and at the same time, the grip of the delivery mechanism 33 is released to complete the delivery.After that, the connector is rotated at 0 degrees or 90 degrees on one side around the Z axis.
It is rotated once and lowered, and inserted into a predetermined insertion hole of the printed circuit board 19 in a predetermined direction.

After that, the bending mechanism 38 bends the printed circuit board 1.
Predetermined legs protruding from the back side of the connector 9 are bent and the connector is routed to the printed circuit board 19.

Selection of the order in which connectors are supplied from each feeder 8A etc. to the holding mechanism 25, rotation station 13
selection of the rotation angle of +90 degrees or -90 degrees in the insertion section 17, selection of the rotation angle of 0 degrees or 90 degrees on one side in the insertion section 17, and the selection of the rotation angle of the printed circuit board 1 by the table moving mechanism 37.
The selection of the positions 9 is performed according to a program or manually as necessary, in accordance with a predetermined order.

The insertion portion 17 will be explained with reference to FIG. 9, FIGS. 10a and 10b, and FIG. 11.

65 is a frame and an arm portion 22 (Fig. 5)
is fixed. 66 is a lifting frame;
It is supported along guide rails 67 of a frame 65 so as to be movable up and down. On the other hand, a main shaft 68 is rotatably supported by the frame 65, and the elevating frame 66 is raised and lowered by driving a belt 69 to operate a rod 72 via a cam 70 and a bell crank 71. Further, the elevating frame 66 is constantly subjected to upward pulling force by the spring 73. A sleeve 76 is rotatably supported on the lifting frame 66 via bushes 74 and 75. A holding claw opening/closing mechanism 77 for opening and closing the holding claw 34 is attached to the lower end of the sleeve 76.
Together with 6, it forms a rotating part. A pinion 78 is fixed to the sleeve 76 and meshes with a rack 80 that slides back and forth horizontally within the cover 79. Rack 80 is constantly subjected to a force directed to the left in FIG. 9 by spring 81. One end of the rack 80 forms an L-shaped bent arm 82.

An arm 83 is swingably supported around a pin 84 fixed to the frame 65, and is designed to swing by a cam 85 provided on the main shaft 68. 86 always moves the cam roller 87 to the cam 8.
This is a spring that provides a force to press against 5. arm 83
is formed integrally with an arm 89 rotatably provided with a bell crank 88 as a striker at its tip. The bell crank 88 has a roller 90 at one end that pushes the arm 82 and is rotated by a cylinder 91.

Reference numerals 92 and 93 denote positioning notched disks for limiting the rotation angle of the sleeve 76, and are adjusted by stoppers 94 and 95 as shown in FIGS. 10a and 10b.

Reference numeral 36 denotes a push rod that presses approximately the center of the upper surface of the connector, and is supported so as to be able to move up and down within the holding claw opening/closing mechanism 77, and is constantly receiving an upward force from a spring 96. A rod 97 is supported so as to be able to move up and down within the sleeve 76, and is pushed down by a cylinder 98 to push down the push rod 36 against the spring 96.

Reference numeral 100 denotes an escape groove through which the leg 2 escapes so that the tip of the push rod 36 hits the main body 1 of the connector 4. Alternatively, the groove may be made shallow so that it touches the tip of the leg 2 and does not touch the main body 1. In this case leg 2
It is recommended to install a device in the groove to prevent it from falling.

To explain the operation, the connector 4 transferred from the delivery mechanism 33 is held on the leg 2 by the holding claw 34, and after receiving the delivery, the main shaft is rotated and the elevating frame 66 is lowered by the action of the cam 70. 4 to approach the printed circuit board 19. In this case, the arm 89 also rotates under the action of the cam 85, but if there is no need to change the direction of the connector 4, tighten the cylinder 91 and the roller 90 will be in the retracted state and the arm 82 will not be touched and the arm 89 will be rotated.
Since the sleeve 76 does not move, the sleeve 76 does not rotate and the orientation of the connector 4 does not change.

The legs 3 of the connector 4 are inserted into the predetermined insertion holes of the printed circuit board 19 using the holding claws 34, and the lower end of the push rod 36 holds the connector 4 approximately at its center on the upper surface, and then the bending mechanism 3 is inserted from the back surface of the printed circuit board 19.
The connector 4 is fixed to the printed circuit board 19 by bending a predetermined one of the legs 3 to prevent it from coming off, and then the elevating frame 66 is raised to return to its original state.

If it is necessary to rotate connector 4,
If the cylinder 91 is held in an extended state, the cam 8
When the arm 89 swings due to the action of 5, the roller 90 pushes the arm 82, moves the rack 80, rotates the sleeve 76, and allows the orientation of the connector 4 to be changed by 90 degrees.

Note that if the insertion portion is rotated by selecting an angle α that satisfies −90 degrees≦+90 degrees, the insertion portion can be inserted in any direction.

The present invention supports a sleeve to which a connector holding claw opening/closing mechanism is fixed, rotatable around a vertical axis and movable up and down, and a pinion is provided on the outer periphery of the sleeve, which engages with the pinion and is supported so as to be movable horizontally. A striker is provided at the tip of an arm that is swung by the main shaft cam, and is provided with a rack that is biased in one direction by a spring, and that pushes the rack against the force of the spring. Because the structure is swingable, a slight movement of the striker allows the connector to be inserted by selecting rotation or non-rotation of the retaining claw opening/closing mechanism without affecting the operation of other parts driven by the main shaft. We can provide a rotating device for the connector holding claw opening/closing mechanism that enables the realization of a high-speed, high-reliability automatic connector insertion device that can select the orientation quickly and reliably, and has an extremely large practical effect. It is something that you have.

[Brief explanation of drawings]

The drawings relate to embodiments of the present invention, and Figures 1a, b, and c are front views, side views, and plan views of the connector, Figure d is abbreviations in the plan view of the connector, and Figure 2 is a printed image. A plan view showing the orientation of the connector on the board, FIG. 3 is an explanatory plan view showing changes in the orientation of the connector, and FIGS. 4 a, b, c, and d are
FIG. 5 is a side view of the automatic insertion device and a sectional view taken along line A-A in FIG. 7 (however, the holding mechanism is partially omitted); FIG. 7 is a front view, FIG. 8 is a sectional plan view taken along C-C in FIG. 5, FIG. 9 is a front view of the insertion section (excluding the cover), and FIG. 10a , b is a plan view of the positioning notch disk, and FIG. 11 is the G- in FIG. 9.
It is a side view of a section taken along the line G (partially taken along the axis of the rod 97). 1... Main body, 2... Legs, 3... Legs, 4, 4X,
4X', 4Y, 4Y'... Connector, 5... Connector orientation, 6... Printed circuit board, 7... Connector supply section, 8A, 8B, 8C, 8D, 8E... Feeder, 9A, 9B, 9C, 9D, 9E... Supply station, 10... Moving passage, 11... Center,
12...Arrow, 13...Rotating station, 14
...Delivery station, 15...Return rotation station, 16...Delivery section, 17...Insertion section, 18
...Insertion position, 19...Printed circuit board, 20...
Base part, 21... Column part, 22... Arm part, 2
3... Transfer section, 24... Table section, 25... Holding mechanism, 26... Rotating table, 27... Intermittent rotation mechanism, 28, 28A, 28B... Clamping claw, 29
A, 29B, 29C, 29D, 29E...Cylinder, 30...Cylinder, 31...Cylinder, 32
... Cylinder, 33 ... Delivery mechanism, 34 ... Holding claw, 35 ... Rotating part, 36 ... Push rod, 37 ...
Table moving mechanism, 38... Bending mechanism, 65...
Frame, 66... Lifting frame, 67... Guide rail, 68... Main shaft, 69... Belt, 70...
...Cam, 71...Bellcrank, 72...Rod, 73...Spring, 74...Button, 75...
Bush, 76... Sleeve, 77... Holding claw opening/closing mechanism, 78... Pinion, 79... Cover, 8
0...Rack, 81...Spring, 82...Arm,
83...Arm, 84...Pin, 85...Cam,
86...Spring, 87...Cam roller, 88...Bell crank, 89...Arm, 90...Roller,
91...Cylinder, 92...Positioning notch disk,
93...Positioning cutout disc, 94...Stopper,
95...Stopper, 96...Spring, 97...Rod, 98...Cylinder, 99...Centering pin, 100...Escape groove.

Claims (1)

[Scope of utility model registration request] A sleeve to which a connector holding claw opening/closing mechanism is fixed is rotatably supported around a vertical axis and can be raised and lowered, and a pinion is provided on the outer periphery of the sleeve,
A striker is provided with a rack that meshes with the pinion, is supported for horizontal reciprocating movement, and is biased in one direction by a spring, and pushes the rack against the force of the spring, and is swung by a main shaft cam. 1. A rotating device for a connector holding claw opening/closing mechanism, characterized in that the rotating device is provided at the tip of an arm so as to be swingable relative to the arm.