JP3087540B2 - Electronic component suction nozzle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in connection with a mounting machine for mounting an electronic component on a substrate or an electronic device assembling machine.
The present invention relates to an electronic component suction nozzle that suctions and supplies chip components.

[0002]

2. Description of the Related Art A conventional electronic component suction nozzle of this type will be described with reference to the drawings. 2 (a) and 2 (b) are a plan sectional view and a front sectional view showing the configuration of a conventional electronic component suction nozzle. In FIG. 2 (a), reference numeral 6 denotes a pipe whose end (not shown) is connected to a vacuum source. , 7 are a nozzle body which is detachably fitted to the outer periphery of the tip of the pipe 6 and vacuum-adsorbs a chip component (not shown) at the tip.
A rotation preventing pin 9 for preventing the rotation of the nozzle body 9 is a screw for connecting the nozzle body 7 to the pipe 6, and when replacing the nozzle body 7 according to the size of the chip component (not shown) to be sucked. Then, the screw 9 is loosened to remove the nozzle body 7, another nozzle body 7 is mounted, and the screw 9 is tightened and fixed.

FIG. 3 is a front view showing another example of a conventional nozzle for sucking electronic parts. In FIG. 3, reference numeral 10 denotes a pipe having an end (not shown) connected to a vacuum source, and reference numeral 11 denotes a pipe of the pipe 10. A nozzle body 12 which is detachably fitted to the outer periphery of the tip and vacuum-adsorbs a chip component (not shown) at the tip;
Is a pin incorporated in the nozzle body 11, and 13 is a spring. When the nozzle body 11 is converted in accordance with the size of a chip component (not shown) to be sucked, the nozzle body 11 is pushed upward and rotated. The nozzle body 11
The nozzle body 11 is removed by disengaging the pin 12 incorporated in the pipe and the inverted U-shaped groove provided at the tip of the pipe 10, and another nozzle body 11 is attached in the reverse operation.

[0004]

In recent years, chip components have been diversified in shape and external dimensions as seen in the shape of square chip capacitors and square chip resistors, and the types of suction nozzles for supplying chip components have also increased. Since the number of the nozzles has increased along with the switching operation of the suction nozzles, there has been an increasing demand for electronic component suction nozzles that can be easily detached.

Further, with the miniaturization of chip components, the miniaturization of electronic component suction nozzles is also required.

However, in the conventional electronic component suction nozzle shown in FIG. 2, the screw 9 must be loosened or tightened using a special tool when the nozzle body 7 is attached or detached, and it takes time to attach or detach the nozzle body 7. Had the problem that

Further, the conventional nozzle for sucking electronic parts shown in FIG. 3 can be easily attached and detached, but it has to be provided with an inverted U-shaped groove at the tip end of the pipe 10 so that the whole nozzle becomes large. Had.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems and to provide a small and easily attachable / detachable electronic component suction nozzle.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an electronic component suction nozzle according to the present invention is provided with a notch at a front end thereof to form a detent groove, and a circumferential wall near an upper portion thereof is formed circumferentially. A pipe for vacuum suction formed with a locking groove cut out in the direction, a hole communicating with the pipe, and a detent pin that fits into the detent groove. A circumferential groove is provided in the peripheral wall, a ring-shaped elastic body is fitted therein, a part of the groove is cut out, and a pin roller which fits into the locking groove provided in the pipe is embedded and engaged with the pipe. And a nozzle body that sucks an electronic component at the tip.

[0010]

According to this structure, the pin roller, which is formed by cutting out a part of the concave groove of the nozzle body, is always elastically supported in the inner circumferential direction by the contraction force of the ring-shaped elastic body fitted in the concave groove. Thus, the pipe and the nozzle body can be securely fixed to engage with the locking groove provided in the pipe.

When the nozzle body is replaced, the nozzle roller is pulled out downward so that the pin roller is pushed out of the ring-shaped elastic body in the outer peripheral direction and comes off from the locking groove. can do.

[0012]

An embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1A and 1B are a plan sectional view and a front sectional view, respectively, showing the structure of an electronic component suction nozzle according to the embodiment. In FIG. 1, reference numeral 1 denotes an unillustrated end of a vacuum source. The pipe 1 is provided with a hollow pipe having a notch formed at a distal end thereof, and an outer peripheral wall notched in a circumferential direction near an upper portion of the detent groove 1b. A locking groove 1a having a V-shaped cross section is provided.

Reference numeral 2 denotes a nozzle body having a hole communicating with the pipe 1 and a suction surface 2b at a tip for sucking an electronic component (not shown). A concave groove 2a having a concave cross section is formed from the outer peripheral portion at a position corresponding to the provided locking groove 1a over the entire circumference in the circumferential direction, and a part of the concave groove 2a is cut out to form a rod-shaped pin roller 3a. And a ring-shaped elastic body 4 such as an O-ring is fitted into the concave groove 2a with the pin roller 3 fitted, and a part of the pin roller 3 is made utilizing the contraction force of the ring-shaped elastic body 4. Is supported in a circumferentially pressed state, and the pipe 1 and the nozzle body 2 are connected by engaging a part of the pin roller 3 with the locking groove 1 a of the pipe 1.

Reference numeral 5 denotes a detent pin fitted into the nozzle body 2, which is fitted into a detent groove 1b provided at the tip of the pipe 1 to prevent the nozzle body 2 from rotating with respect to the pipe 1. I have.

In the electronic component suction nozzle according to the present embodiment thus configured, a part of the pin roller 3 embedded in the nozzle body 2 via the ring-shaped elastic body 4 in the locking groove 1 a provided in the pipe 1. The pipe 1 and the nozzle body 2 are engaged so as to be pressed by the contraction force of the ring-shaped elastic body 4.
Can be reliably connected.

When the nozzle body 2 is replaced,
By pulling the nozzle body 2 downward, the pin roller 3 is disengaged from the locking groove 1a so as to push the ring-shaped elastic body 4 in the outer peripheral direction, so that the nozzle body 2 can be removed very easily, and it is small and easy to attach and detach. It is possible to provide an inexpensive electronic component suction nozzle at low cost.

[0018]

As described above, the nozzle for sucking electronic parts according to the present invention can be reduced in size with a simple structure, and the nozzle body can be attached to and detached from the pipe very easily. It is possible to obtain an excellent effect that it can be secured, and it greatly contributes to a chip component in which miniaturization and diversification of shapes are progressing.

[Brief description of the drawings]

FIG. 1A is a cross-sectional plan view showing a configuration of an electronic component and a mounting nozzle according to an embodiment of the present invention. FIG.

FIG. 2A is a cross-sectional plan view showing the configuration of a conventional electronic component suction nozzle, and FIG.

FIG. 3 is a front view showing a conventional electronic component suction nozzle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pipe 1a Locking groove 1b Detent groove 2 Nozzle body 2a Depressed groove 2b Suction surface 3 Pin roller 4 Ring-shaped elastic body 5 Detent pin

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-85997 (JP, A) JP-A-5-131326 (JP, A) JP-A-2-174299 (JP, A) 88684 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) H05K 13/04

Claims (1)

(57) [Claims] 1. A vacuum suction pipe in which a notch is provided at a tip portion to form a detent groove, and an outer peripheral wall near an upper portion thereof is notched in a circumferential direction to form a locking groove. It has a communicating hole and a detent pin that fits into the detent groove, and is removably fitted to the outer periphery of the tip of the pipe. A circumferential groove is provided on the peripheral wall to fit the ring-shaped elastic body. An electronic component suction nozzle comprising a nozzle body which embeds a pin roller which cuts out a part of the groove and fits into a locking groove provided in the pipe, engages with the pipe, and suctions an electronic component at a tip end.