JPH0632437B2 - Electronic component transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention provides an electronic component in which lead terminal rows are implanted on opposite sides of a base portion of a substrate or the like in a positioning jig with high accuracy in two horizontal axial directions. The present invention relates to a transfer device for an electronic component, which can be positioned and transferred to the electronic component to perform processing such as trimming on the electronic component at a desired position.

[Background of the Invention]

The conventional device, as described in JP-A-57-61488,
The work clamping device or the work gripping device is a claw fixed to the tip of the finger, and is composed of a mechanism configured to align the center of the work with the center of the gripping device when gripping the work. There is.

The work 1 targeted by the function trimmer is a thick film module 1 as shown in FIG.

The lead terminals 3 are fixed to both sides of the short-side end surface of the substrate 2 by soldering, and pattern printing is performed on the substrate 2 in a single state.

Electronic components 4 such as resistors, capacitors, and transistors are mounted on the substrate 2. Further, the conductor pattern and the resistor pattern 5 are printed by printing.

The function trimmer performs function trimming while measuring the characteristics of these thick film modules. As a method of trimming, a part of the resistance pattern is cut 6 with a laser, and trimming is continued until a predetermined value is reached.

Therefore, in order to cut a part of the resistance pattern with the laser, it is necessary to position the substrate. Since the resistance pattern on the substrate of each of these thick film modules is printed with reference to the end face in the longitudinal direction of the substrate, it is necessary to supply and position it with reference to this reference face.

For these required functions, the above-mentioned JP-A-57-614 has been proposed.
In the clamp device described in Japanese Patent Publication No. 88, since the structure is such that the center of the work is aligned with the center of the gripping device, the function of satisfying the purpose of aligning at a predetermined position with the above-mentioned reference end face as a reference has It didn't match.

[Object of the Invention]

In order to solve the above problems, an object of the present invention is to provide an electronic component in which lead terminal rows are implanted on opposite sides of a base such as a substrate,
With a simple structure, the electronic components are moved to the positioning jig with high accuracy in the two axial directions and transferred, and electronic parts can be trimmed with high accuracy. To provide a mounting device.

[Outline of Invention]

In order to achieve the above object, the present invention provides a positioning unit for roughly positioning an electronic component having a pair of lead terminal rows implanted on opposite sides of a base, and positions the electronic component in two horizontal axial directions. Therefore, a plurality of positioning holes are drilled, and a pair of long grooves corresponding to the lead terminals are drilled.
Further, the positioning is provided with a slider having therein a spring for pressing each of the lead terminal rows pressed into each of the long grooves to the outer surface from the inside of the long groove to position the electronic component in a direction perpendicular to the lead terminal row direction. The jig is installed in the positioning station, the base of the electronic component roughly positioned by the positioning unit is gripped by the gripping device and lifted and moved, and each of the lead terminal rows of the electronic component is positioned by the positioning station installed in the positioning station. A transfer unit is provided which is inserted into each long groove of the tool to transfer the electronic component to the positioning jig, and the main member to which the gripping device is attached is attached to the tip of the transfer unit via a rubber ring, When the transfer unit is lowered, the protrusions formed at the tips of the plurality of positioning shafts slidably supported by the main member in the vertical direction are positioned by the positioning unit. The rubber ring is deformed by fitting into the positioning hole of the jig, the main member is moved in parallel in the horizontal direction, and the main member is positioned in the horizontal biaxial direction with respect to the positioning jig. A gripping device attached to a main member that is positioned in two axial directions horizontal to a jig is a pair of rotatably supported so as to grip both end surfaces of a base portion on which the lead terminals are not implanted. , The air cylinder that engages the drive output with each drive end of the pair of fingers to open the pair of fingers, and is suspended so as to apply different turning power to each of the pair of fingers in the closing direction. A pair of spring members and a stopper for stopping the rotation of one finger of the pair of spring members having a spring with a large turning force suspended at a reference position. When closing the pair of fingers with the pair of spring members, the rotation of the one finger is brought into contact with the stopper and stopped at the reference position, and the other of the pair of spring members, which has a small rotational force, is suspended. The electronic component is configured so that the electronic component that is roughly positioned by the positioning unit is positioned on the basis of the one finger as a reference to grip both end faces of the base of the electronic component. Is a transfer device.

Example of Invention

An embodiment of the present invention will be described below with reference to FIGS. 2 and 3. 2 is a front view of the gripping device, FIG. 3 is a sectional view of a positioning jig, and FIG. 4 is a vertical sectional view taken along line AA of FIGS.

The gripping device of the present example, which is entirely configured as a unit, is detachably installed on a member 15 fixed to a transfer unit that can rotate about an axis, reciprocate in the axial direction, and move to other parts. Has been done. The above member 15, the upper plate 16, the rubber ring
A flexible unit 19 having three horizontal parts, a lower plate 18 and a horizontal translation function, is fixedly installed. The rubber ring 17 has a protrusion in a circumferential shape as shown in part a, and is fitted into the concave grooves of the upper plate 16 and the lower plate 18 and is baked and adhered. The material is urethane rubber, butyl rubber, or the like.

A thin cylinder 21 is fixedly mounted on the lower surface of the lower plate 18 via a plate 20. Thin cylinder 21 is bolt 22
Therefore, the main plate (main member) 23 is fixedly installed.

A positioning shaft 24 is set on a main plate (main member) 23 via two ball bushes 25 so as to be slidable in the vertical direction. The positioning shaft 24 has a protrusion 26 at the bottom,
A compression coil spring 27 is inserted above 26. The pin portion 27 on the lower side of the protrusion 26 is inserted into the positioning hole 29 of the positioning jig 28.

A pusher 31 is fixed to the tip of the rod 30 of the thin cylinder 21.

At the bottom of the main plate 23, fingers 32-a and b are
It is installed around the fixed pin 33. The fixing pin 33 is fixed to the protrusion 34. A bearing 35 is rotatably fixed to the upper ends of the L-shaped fingers 32-a and b.

The lower claw portions 36 of the fingers 32-a and b hold and fix the end surface of the substrate 2 of the work 1.

Further, the positioning jig 28 is provided with a long groove 37 into which the lead terminal 3 of the work 1 can be easily inserted.

The positioning jig 28 has a long groove 37, and a slider 40 is provided between the T-shaped guide 38 and the lower surface central recess 39 of the positioning jig 28.
Two pairs are fitted and inserted through the compression coil spring 41.

A stopper plate (stopper) 42 is fixedly provided on the lower surface of the protrusion 34 below the main plate 23. At the center of the stopper plate 42, there is a bolt 43.
And the finger 32-a are tension coil springs 44-a, and the bolt 43 and the finger 32-b are tension coil springs 44-b. The left end of the stopper plate 42 is
Zero gap when in contact with fingers 32-b, stopper plate
There is a gap c between the right end of 42 and the finger 32-a.

Next, the operation will be described.

The module 1 which is roughly positioned by the module positioning unit (not shown) is held by the gripping unit of the present invention.
Before gripping, operate the thin cylinder 21 to move the rod 30
To move forward. The pusher 31 fixed to the tip of the rod 30 lowers the bearing 35 rotatably fixed to the tips of the fingers 32-a and 32-b. As a result, the fingers 32-a, b pivot about the fixing pin 33 as the center of rotation and open the tip claw portions 36 of the fingers 32-a, b. In this state, the entire gripping device is lowered to a predetermined position to start gripping. First, operate the thin cylinder 21 to move the rod 30
Retreat. Following this, the pusher 31 also retracts. Then, a gap is generated between the pusher 31 and the bearing 35.
At the next moment, the fingers 32-a and b are closed by the tension coil springs 44-a and b that are respectively fixed to the fingers 32-a and b. By the force of the tension coil springs 44-a, b, the tip claw portions 36 of the fingers 32-a, b grip the longitudinal end surface of the substrate 2 of the work 1. The tension coil spring force is
-The side b is big. Therefore, due to the force of the tension coil spring 44-b, the finger 32-b is pulled, the finger 32-b is pulled, and the inner surface of the finger 32-b comes into contact with the end surface of the stopper plate 42. With this, the position of the end face in the longitudinal direction that serves as the reference of the work 1 can be obtained.

On the other hand, since the force of the tension coil spring 44-a installed on the finger 32-a side is small, a gap c is formed between the right end surface of the stopper plate 42 and the finger 32-a due to the difference in spring force.
Is made. This means that the workpiece 1 is gripped with the reference surface of the workpiece 1 as a reference, and the original function is satisfied.

Next, a case where the work 1 is inserted into the positioning jig 28 positioned by the positioning station 45 after being transferred by the gripping device will be described.

When the gripping device descends, first, the pin portion 27 of the positioning shaft 24
Comes into contact with the positioning hole 29 of the positioning jig 28. Due to the reaction force generated by this contact, the flexible unit
Deform the rubber ring 17 of 19 as shown in FIG. 4,
The main plate (main member) 23 to which the center of the gripping device is moved in parallel in the horizontal direction by the dimension D to rotatably support the fingers 32-a and 32-b and the stopper plate (stopper) 42 is attached is , Is positioned in two axial directions that are horizontal with respect to the positioning jig 28. That is, the work 1 having the substrate 2 gripped with the fingers 32-b abutting on the stopper plate (stopper) 42 as a reference is positioned in the horizontal biaxial direction with respect to the positioning jig 28.

After that, as the gripping device descends, the projection 26 of the positioning shaft 24 is applied to the upper surface of the positioning jig 28, thereby compressing the compression coil spring 27 and allowing the positioning shaft 24 itself to escape upward. Along with that, the lead terminal 3 of the work 1
Is inserted into the long groove 37 of the positioning jig 28.

After the gripping device descends by a predetermined dimension, the lead terminal 3 of the work 1 is pinched by the positioning jig 28 and the slider 40 as shown in FIG. 3 to position and fix the lead terminal 3.

In FIG. 3, in order to position the substrate 2 of the work 1 in the lateral direction, the lead terminal 3 is moved to the positioning jig 28 and the slider 40.
Do by pinching with and.

In the gripping device described above, the positioning shaft 24 and the fingers are
The position dimension of the 32-b tip claw 36 is the stopper plate 42
The left end face of is finely adjusted and set to a predetermined size.

〔The invention's effect〕

According to the present invention, with a simple configuration in which the electronic component having the pair of lead terminal rows implanted on both sides of the base opposite to each other is simply grasped from the positioning unit for roughly positioning, one of the lead terminal rows not implanted. The reference surface can always be gripped with a constant reference position, and with the gripping device positioned in two axial directions that are horizontal with respect to the positioning jig, the lead terminals of the electronic component can be placed in the long grooves of the positioning jig. Insertion is possible, and the lead terminal row is positioned by the slider in the positioning jig. As a result, the electronic parts can be mounted on the positioning jig by using the gripping device, and the electronic parts can be placed in the horizontal two-axis direction. It is possible to position and transfer with high accuracy, and as a result, it is possible to perform processing such as trimming with high accuracy on the electronic component.

[Brief description of drawings]

FIG. 1 is an external view of the thick film module of the target work, and FIG.
FIG. 3 is a front view of a gripping device according to an embodiment of the present invention, and FIG.
Sectional view of a positioning jig showing the positional relationship with FIG. 2, FIG.
The drawing is a vertical cross-sectional view taken along the line AA in FIGS. 2 and 3. 1 ... Work, 2 ... Board, 3 ... Lead terminal, 19 ... Flexible unit, 24 ... Positioning shaft, 28 ... Positioning jig, 32 ... Finger, 42 ... Stopper plate, 44 ... Tensile coil spring.

Claims (1)

[Claims] 1. A positioning unit for roughly positioning an electronic component, in which a pair of lead terminal rows is implanted, is provided on opposite sides of a base, and a plurality of positioning holes are provided to position the electronic component in two horizontal axis directions. A pair of long grooves corresponding to the lead terminals are formed, and each of the lead terminal rows inserted in each of the long grooves is pressed from the inner side of the long groove to the outer side surface to form a direction perpendicular to the lead terminal row direction. A positioning jig equipped with a slider having a pressing spring means for positioning the electronic component is installed in the positioning station, and the base of the electronic component roughly positioned by the positioning unit is gripped by the gripping device and moved by lifting. A transfer unit that inserts each of the lead terminal rows of the electronic component into each long groove of the positioning jig installed in the positioning station and transfers the electronic component to the positioning jig. And a main member to which the gripping device is attached is attached to the tip of the transfer unit via a rubber ring, and the tip of each of a plurality of positioning shafts slidably supported by the main member in the vertical direction. When the transfer unit is moved down, the protrusion formed on the is fitted into the positioning hole of the positioning jig to deform the rubber ring and move the main member in parallel in the horizontal direction to perform the positioning treatment. It is configured so that it can be positioned in two horizontal axes relative to the tool,
The gripping device attached to a main member that is positioned in two axial directions horizontal to the positioning jig is rotatably supported so as to grip both end surfaces of the base portion on which the lead terminals are not implanted. A pair of fingers, an air cylinder for opening the pair of fingers by engaging a driving output with each driving end of the pair of fingers, and different rotational powers in the closing direction for the pair of fingers. A pair of suspended spring members; and a stopper for stopping the rotation of one finger of the pair of spring members, on which a spring having a large turning force is suspended, at a reference position, and retracting the air cylinder When closing the pair of fingers by the pair of spring members, the rotation of the one finger is brought into contact with the stopper and stopped at the reference position, and a spring member having a small turning force among the pair of spring members. The other suspended finger is rotated to position the electronic component roughly positioned by the positioning unit with reference to the one finger, and both ends of the base of the electronic component are gripped. Electronic component transfer device.