JPH04107998A - Clincher - Google Patents

Abstract

PURPOSE:To make a clincher possible to easily respond to the occurrence of difference in lead pitch without replacing a pair of clinch pallets by positioning a movable pallet block that supports one of a pair of pallets at the original point on the base plate for a transfer mechanism and by positioning the movable pallet block at a position distant by a desired pitch from the other fixed pallet block on the base plate for a clinch unit. CONSTITUTION:Keep a movable pallet block 7 free, move table 23 in the X direction and table 25 in the Y direction until base plate 9 comes at the original position on base plate 21, move a cylinder 32 downward to connect the conical tip of stopper 31 to hole 34, and correct a movable pallet block 7 to a proper original point on the base plate 21 and fix it thereat. Next, pitch position adjustment for movable pallet block 7 is carried out by keeping the block 7 fix at the original point using the stopper 31, and then by moving a clinch unit 1 in the X direction by a movable table 23. Then, the clinch unit 1 is moved accompanying only the fixed pallet block 8. With this condition, when using a cylinder 42 to connect stopper 41 to hole 44 of plate 33, the block 7 is fixed on base plate 9 and each of clinch pallets 3 and 4 is fixed into the pitch condition following adjustment.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a clinching device used primarily for clinching the leads of electronic components on the back side of an electronic board into which they are inserted.

2. Description of the Related Art Conventionally, this type of clinch device includes a clinch unit having a pair of clinch claws that can be opened and closed, and is supported on a moving mechanism. The moving mechanism consists of χ and Y that are perpendicular to each other on the horizontal plane.
The clinch unit is supported so that the clinch unit can be moved in necessary directions such as the 02 direction and the vertical W direction, and can be rotated about the W direction axis. This allows the clinch unit to clinch the leads of electronic components mounted at any position and in any orientation on the electronic board.

Problems to be Solved by the Invention There are a wide variety of electronic components having leads, and the pinch points of the leads they have are also set in various ways.

However, the clinch claws of conventional clinch units are set at a fixed pinch interval depending on the pinch of a specific electronic component glue, and the clinch work can be reliably performed with just the right amount of opening and closing stroke for that specific electronic component. That's what I do. For this reason, each time the type of electronic component changes, it is necessary to replace it with a suitable bi-notch clinch claw, resulting in poor workability and reduced productivity.

SUMMARY OF THE INVENTION An object of the present invention is to provide a clinch device that can easily accommodate differences in lead pitch without replacing the clinch claws.

Means for Solving the Problems In order to achieve the above-mentioned problems, the present invention provides a clinch unit having a pair of clinch claws that can be opened and closed.
In a clinch device supported on a moving mechanism, the opening and closing directions of the clinch claws are parallel to the direction of movement of one of the moving mechanisms, and each clinch claw, together with its respective drive mechanism, has one side of each claw bronch. is supported on the base of the clinch unit so as to be movable in a direction parallel to the opening/closing direction of the clinch claw to form a movable claw block, and this movable claw block is positioned at the origin position on the base of the moving mechanism. a first positioning means and a second positioning means for positioning the movable claw block at a desired pinch position between the other fixed claw block on the base of the clinch unit;
The invention is characterized in that it includes a positioning means.

Function According to the above structure of the present invention, one movable claw block of each claw block is movable in the opening/closing direction of the clinch claw with respect to the other fixed claw block on the substrate of the clinch unit. The positioning means allows the moving mechanism to be positioned at a predetermined origin position on the base, and in this state, when the moving mechanism moves the clinch unit in the opening/closing direction of the clinch claws, the fixed side claw block is moved by the moving mechanism. In contrast, the movable claw block is integral with the base of the moving mechanism and does not move from the original position.

For this reason, the fixed side block pawl moves independently with respect to the movable side pawl block located at the origin position on the base of the moving mechanism and is moved toward and away from the clinch pawl opening/closing direction, thereby adjusting the pitch between the clinch pawls. be able to. In this pinch adjustment state, the stationary claw block can be positioned and fixed on the base of the clinch unit at the pitch adjustment position by the second positioning means.

A clinch device as an embodiment of the present invention shown in the drawings will be described.

In this embodiment, as shown in the figure, a clinch unit 1 is supported on a moving mechanism 2. The clinch unit 1 has, on a base 9, claw blocks 7.8 each consisting of a clinch claw 3.4 and a drive cylinder 5.6 that moves the clinch claws 3.4 forward and backward to open and close each other. One claw block 7 is mounted on a base 9 by an X-direction moving table 12 guided by an X-direction rail 11 and an X-direction moving table 14 guided by an X-direction rail 13.
A movable claw block is supported movably in two directions, and the other claw block 8 is a fixed claw block supported on a base 9 via a fixed base 15.

The X-direction moving table 12 is biased by a spring 16 acting between the X-direction moving table 14 and the X-direction moving table 14 so as to be located approximately at the origin position in the X-direction on the base 9. Further, the X-direction moving table 14 has a spring 1 applied between it and the base 9.
7 so as to be located approximately at the origin position in the X direction on the base 9. As a result, the movable claw block 7 is located approximately at the origin position in each of the X1Y directions on the base 9 in a free state.

The moving mechanism 2 includes an X-direction moving table 23 guided by an X-direction guide 22 on a base 21, and an X-direction guide 24.
The base 9 of the clinch unit 1 is supported via an X-direction moving table 25 guided by an X-direction moving table 25 and a rotating shaft 25 in the W direction, which is a vertical direction, provided on the X-direction moving table 24.

As a result, the clinch unit 1 can move in the X and Y directions, and can also move in the W direction, that is, the vertical direction, and the rotation axis 25.
rotation is possible.

Note that 27 is a drive cylinder for the X-direction moving table 23;
8 is a driving cylinder for the X-direction moving table 25.

On the base 21 of the moving mechanism 2, the movable claw block 7 is mounted.
A first positioning stopper 31 is provided for fixing the base 21 at the original position on the base 21. This stopper 31 is connected to a cylinder 32 supported by a column 35 on the base 21, and is inserted into the origin positioning hole 34 formed in the positioning plate 33 of the movable claw block 7, which is approximately at the origin position on the base 21. Opposing from above. Therefore, when the stopper 31 is moved downward by the cylinder 32 in such a facing state, its conical tip engages with the hole 34, and the movable claw block 7 is brought to a more appropriate origin position on the base 21. It can be corrected and fixed.

The movable claw block 7 is in the free state and is attached to the base 9.
The X and X direction tables 23 and 24 move the base 9 to the origin position on the base 21 in a state where the base 9 is almost at the origin position as shown above, so that the base 9 is almost at the origin position on the base 21, As described above, the stopper 31 can correct and fix the position at the proper origin.

On the base 9 of the clinch unit 1, there is a second movable claw block 7 fixed on the base 9 at each pitch adjustment position.
A positioning stopper 41 is provided. Stopper 4
1 is connected to a cylinder 42 fixed on the base 21, and at each adjustment position where the movable claw block 7 is pitch-adjusted on the base 9, the positioning plate 33 of the movable claw block 7 is connected to each pitch. It faces from below one of the positioning holes 44 provided corresponding to the adjustment position.

At this time, when the stopper 41 is moved upward by the cylinder 42, it engages with the opposed hole 44, and the movable claw block 7 can be positioned at the pitch adjustment position on the base 9 that is being adjusted at that time.

To adjust the pitch position of the movable claw block 7, as described above, the movable claw block 7 is kept fixed at the original position on the base 21 by the stopper 31, and the fixation to the pinch adjustment position by the stopper 41 is released. Next, the clinch unit 1 is moved in the X direction by the X direction moving table 23 of the moving mechanism 2.

At this time, the movable claw block 7 is fixed at the original position on the base 21 by the stopper 31 and does not move, and the clinch unit 1 is moved in the X direction with only the fixed claw block 8.

As a result, the pitch between the clinch claws 3 of the movable claw block 7 and the clinch claws 4 of the fixed claw block 8 is adjusted by the amount by which the clinch unit 7) 1 is moved in the X direction. In this state, the stopper 31 is
When the movable claw block 7 is engaged with the hole 44 of the plate 33, the movable claw block 7 is fixed on the base 9 of the clinch unit 1 at the position after the pitch adjustment between the movable claw block 7 and the fixed claw block 8. As a result, each clinch claw 3.4 is fixed at the adjusted pitch state, and henceforth, it is possible to clinch a lead or the like of the corresponding pitch at the adjusted pitch while maintaining the normal opening/closing stroke.

Therefore, any pitch of the leads of electronic components can be accommodated, and the trouble of replacing the clinch claw every time the type of electronic component changes is eliminated. Moreover, the pitch can be adjusted simply by temporarily releasing the fixation of the movable claw block 7 of the clinch unit 1 onto the base 9, and moving the clinch unit 1 by the necessary amount in a predetermined direction using the existing moving mechanism 2 dedicated thereto. Therefore, the operation is simple and the structure is not particularly complicated.

In this embodiment, the movable claw block 7 is placed on the base 9 at an angle of
Since the clinch unit 1 and the movable claw block 7 are moved relative to each other in the X direction, the facing state of each clinch claw 3.4 can be adjusted. However, if this is unnecessary, the moving structure in the X direction and the positioning structure (not shown) can be omitted.Advantages of the InventionAccording to the present invention, one movable claw bronck of each claw bronck is mounted on the base plate of the clinch unit. , the clinch claws are movable in the opening and closing directions relative to the other fixed claw block, but can be fixed at a predetermined origin position on the base of the moving mechanism by the first positioning means, and in this state When the clinch unit is moved by the moving mechanism in the opening/closing direction of the clinch claws, the fixed claw block moves integrally with the clinch unit, whereas the movable claw block becomes integral with the base of the moving mechanism. Since the fixed side block pawl moves independently with respect to the movable side pawl block located at the origin position on the base of the moving mechanism, it is moved toward and away from the clinch pawl opening/closing direction, and the pitch between the clinch pawls is adjusted. This pitch adjustment state can be fixed by positioning the stationary claw block on the base of the clinch unit at the pitch adjustment position using the second positioning means. Therefore, the pitch of the clinch claw can be adjusted to correspond to the pinch of the workpiece, and there is no need to replace the clinch claw each time the workpiece changes as in the past, making it easy to perform simple tasks. can correspond to Furthermore, since the existing moving mechanism is used, the structure is not particularly complicated, which is advantageous.

[Brief explanation of the drawing]

The figure is a perspective view showing a clinch device as an embodiment of the present invention. Clinch unit movement mechanism - Clinch claw drive cylinder Movable side claw block Fixed side claw block Base X direction guide rail X direction movement Table base X direction guide rail X direction movement Table positioning plate Stopper Cylinder positioning hole

Claims (1)

[Claims] (1) In a clinch device in which a clinch unit having a pair of clinch claws that can be opened and closed is supported on a moving mechanism, the opening/closing direction of the clinch claws is parallel to the moving direction of one of the moving mechanisms. , one of the claw blocks formed by each clinch claw together with its respective drive mechanism is supported on a base of the clinch unit so as to be movable in a direction parallel to the opening/closing direction of the clinch claw, thereby forming a movable claw block; A first positioning means that positions the movable side claw block at the origin position on the base of the moving mechanism, and a position between the movable side claw block and the other fixed side claw block on the base of the clinch unit. a second positioning means for positioning at a desired pitch position of the clinch device.