JPS637291A - Holder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a holding device, and more particularly to a holding device that can suction-hold components such as electronic components in a non-contact manner and easily position them using various methods. This holding device can be suitably applied to a component mounting machine, etc., which sucks and holds electronic components and mounts them on a circuit board.

2. Description of the Related Art In general, in an electronic component mounting machine that mounts electronic components such as ICs onto a circuit board, as shown in FIG. The tape-shaped parts assembly A is intermittently transferred in one direction, and while being transported on the transfer path, the covering tape C is peeled off and wound up by a tape peeling device, and the tape-shaped parts assembly A is transported in one direction intermittently. The electronic component P accommodated in the housing recess B of A is suction-held and taken out by a holding device E, and is mounted on a predetermined position on a circuit board G by the holding device E.

By the way, in order to accurately mount the electronic component P at a predetermined position on the circuit board G, it is necessary to hold the electronic component P so that the center of the electronic component P is aligned with the axis of the holding device E. Therefore, conventionally, as shown in FIG. 9, around the suction nozzle H,
A holding device E has been proposed in which a position regulating claw I for regulating the position of an electronic component held by suction in a close contact state is arranged to be openable and closable. Further, when the electronic component P is an IC having leads in four directions, position adjustment from four directions is required, and two pairs of position adjustment claws I are provided as shown in FIG.

Problems to be Solved by the Invention However, in order to forcibly position the part P, which is suctioned and held in close contact with the nozzle H, with the position adjustment claw I, the gap between the nozzle H and the part P is strong friction occurs, and that frictional force and the positioning force exceeding it are applied to the part P.
This may cause damage to the part P. There is also a limit to the positioning of the component P. For example, in the case of an IC having leads in four directions, if the pitch of the leads is less than 0.8 mm, the component P cannot be properly mounted due to the limit in positional accuracy.

SUMMARY OF THE INVENTION An object of the present invention is to provide a holding device that can hold parts by suction in a non-contact manner and easily position them without strain, and can solve the above-mentioned conventional problems.

Means for Solving the Problems In order to achieve the above object, the present invention provides, as a first invention, a suction portion for holding a component on an end face of a holding member, and a suction portion for lifting the component to be held by suction from the holding member. The device is characterized in that it is provided with a gas jet port, so that parts can be held by suction in a non-contact manner.

A second aspect of the present invention is that, in contrast to the first aspect, a concave portion is provided on the end face of the holding member to receive the component with a gap, and the suction portion is provided so as to receive the component in the concave portion and hold the component by suction.
The present invention is characterized in that a gas outlet is provided on the inner bottom surface of the recess and around the recess so that the component is floated from the holding member within the recess.

A third invention differs from the first invention in that the attraction part is a magnetic attraction part using a magnet, and the magnetic attraction part includes a protrusion piece facing a protrusion made of a magnetic material protruding around the component and magnetizing it. It is characterized by consisting of a magnet.

Furthermore, the fourth invention is different from the third invention by providing a piston on the end surface of the holding member that can be projected by gas pressure and has a hole for blowing out gas at the projecting end for releasing the article. It is characterized by the following points.

In the first aspect of the invention, since the component to be suctioned and held on the holding member is floated from the holding member by the pressure or gas flow of the gas ejected from the gas outlet, the component can be suctioned and held in a non-contact state with the holding member. can.

In the second invention, the component is received with a gap in a recess provided on the end surface of the holding member and held by suction, and the component is held by the pressure or gas flow of gas ejected from the deep bottom surface of the recess and the surrounding gas outlet. It can be floated from the holding member and stabilized within the recess. As a result, not only can the component be suction-held without contacting the holding member, but also appropriate positioning can be achieved by receiving the component into the recess. Further, since the recess itself has no component holding force, the component can be smoothly removed by its own weight by releasing the suction.

In the third invention, the component is attracted and held by the attraction force of the magnet, and is brought into a non-contact state with the end surface of the holding member by the action of the gas flow ejected from the gas outlet, so that the part is attracted and held in a floating state, and By attracting the protrusion of the component to the magnetized protrusion, the component is positioned so that the protrusion of the component faces the center position of the protrusion, and the position of the component can be accurately regulated.

In addition, when releasing the held part, if the flow rate of the ejected gas is increased, the pressure between the end face of the holding member and the part may decrease, causing a phenomenon in which the part is further attracted. However, according to the fourth aspect of the invention, since the piston can press the component and instantly separate it from the end surface of the holding member, the holding can be released accurately and reliably. Moreover, since the piston is pressed against the part by the gas flow ejected from the hole without contacting the part, there is no risk of the regulated position being shifted due to shock due to contact between the piston and the part or movement of the piston. .

EXAMPLES Hereinafter, examples of the present invention will be described with reference to FIGS. 1 to 8.

In the first embodiment shown in FIG. 1, reference numeral 1 denotes a rectangular holding member whose cross-sectional shape almost matches the planar shape of the electronic component to be held by suction, and a suction passage 2 is formed in the axial center. At the same time, a plurality of gas supply passages 3 are formed around the holding member 1, and are opened as a suction port (adsorption portion) 5 and a gas jet port 6 at the end surface 4 of the holding member 1, respectively.

In the above configuration, the electronic component P to be held by suction is attached to the end surface 4 of the holding member 1 with a suction source and a pressure gas source (not shown) communicated with the suction passage 2 and the gas supply passage 3 of the holding member 1, respectively. , the electronic component P is attracted to the end surface 4 of the holding member L by the suction force generated by the vacuum suction force of the suction port 5, and is kept in a non-contact state with respect to the end surface 4 by the gas flow ejected from the gas jet port 6. Therefore, the electronic component P is held by suction in a floating state.

Although not shown here, even when positioning the electronic component P using a positioning claw or the like as shown in FIG. 9 described above,
This can be done easily and reliably without any frictional resistance between the electronic component P and the holding member 1, the electronic component P will not be damaged, and the position can be adjusted accurately with a small regulating force.

Next, when mounting the electronic component P on the circuit board, the electronic component P is disconnected from the suction source of the suction port 5.
The electronic component P can be quickly and reliably removed by the gas flow ejected from the gas outlet 6. However, gas outlet 6
Even if the gas jetting from the electronic component P is stopped, the electronic component P can be smoothly removed by its own weight.

The second embodiment of the present invention shown in FIG.
The suction port 5 is formed in the center of the deep bottom surface of the recess 4a, and the suction port 5 is formed in the center of the deep bottom surface of the recess 4a, and the suction port 5 is formed in the center of the deep bottom surface 4a of the recess 4a.
The gas ejection ports 6 are provided around the periphery of the periphery.

In this case, in addition to the first embodiment, since the electronic component P can be held by suction while the electronic component P is received in the recess 4a, the electronic component P can be positioned by the recess 4a. , no special positioning means is required. Furthermore, the electronic component P to be attracted is in a non-contact state floating from the inner surface of the recess 4a due to the pressure or gas flow of the gas ejected around it from the gas outlet 6 within the recess 4a. It will not be damaged due to contact, and the electronic component P can be easily removed from the recess 4a even if it is only automatic by releasing the suction, so it is easy to attach it to the electronic board, etc. fl! It is actually done.

In the third embodiment shown in FIGS. 3 to 5, regulating plates 7 made of a ferromagnetic material such as iron are provided on the four circumferential surfaces of the holding member 1 in the first embodiment. The end of the regulating plate 7 protrudes from the end surface 4 of the holding member 1, and a notch 8 is formed so as to fit into the periphery of the electronic component P with an appropriate gap. Further, a permanent magnet 9 magnetized with a large number of parallel magnetic poles is attached to the outer surface of the regulation plate 7, and a magnetic plate 10 is further attached to the outer surface of this permanent magnet 9. A positioning member 12 is fixed to the end face of the magnetic plate IO, and has a large number of protruding pieces 11 projecting thereon corresponding to a large number of protrusions Q such as leads protruding around the electronic component P. Reference numeral 13 denotes a support frame arranged so as to surround the outer surface of the magnetic plate 10. Reference numeral 14 is a connection port with a suction source, which communicates with the suction passage 2. Further, reference numeral 15 is a connection port to a pressure gas source, which communicates with the gas supply passage 3.

The permanent magnet 9 and the magnetic plate 10 constitute a suction component separate from the suction port 5, and the positioning member 12 and the protrusion Q of the electronic component
Together with the regulating plate 7, it constitutes a magnetic circuit. In addition, in a state where the electronic component P is suctioned and held with an appropriate gap between the end surface 4 of the holding member 1, the space between the end surface of the regulating plate 7 and the protrusion Q of the electronic component P, and between the positioning member 12 Projection piece 1
The regulation plate 7 and the positioning member 12 are arranged so that an appropriate gap is formed between the projection 1 and the protrusion Q.

In the above configuration, the electronic component P to be held by suction is attached to the end surface 4 of the holding member 1 with a suction source and a pressure gas source (not shown) communicated with the suction passage 2 and the gas supply passage 3 of the holding member 1, respectively. , the electronic component P is attracted to the end surface 4 of the holding member 1 by the vacuum suction force of the suction port 5 and the attraction force of the permanent magnet 9 to the protrusion Q, and is also attracted by the gas flow ejected from the gas jet port 6. The end face 4 is in a non-contact state, and the electronic component P is held by suction in a floating state. In addition, at this time, the protrusion Q of the electronic component P is located at the positioning member 12.
Since the electronic component P is attracted toward the center of the protruding piece 11, the electronic component P is automatically and accurately positioned. In addition, since the position of the electronic component P is generally regulated by the notch part 8 of the regulation plate 7, the position of the electronic component P is not deviated beyond the arrangement pitch of the projections Q. Next, the electronic component P is mounted on the circuit board. When doing so, by cutting off the connection with the suction source, the electronic component P is pressed by the gas flow ejected from the gas outlet 6 against the attraction force of the permanent magnet 9, and the electronic component P is
The hold will be released. At this time, if the pressure gas is also ejected from the suction port 5, the electronic component P can be pushed out more reliably.

Note that in order to attract and hold the electronic component P, only the attraction force of the permanent magnet 9 may be used, and the vacuum suction by the suction port 5 may be omitted.

In the above embodiment, a permanent magnet 9 is used, but an electromagnet 16 can also be used as in the fourth embodiment shown in FIG. In FIG. 4, a coil 17 is wound around the magnetic plate 10, and the regulating plate 7 and the magnetic plate 10 are magnetically coupled to each other at the end opposite to the end surface 4, and the regulating plate 7 Electromagnet 1 with magnetic plate 10 and coil 17
6 are configured. In this case, by stopping the current supply to the coil 17, the attraction and holding force due to the magnetic force can be eliminated, which is convenient for releasing the hold on the electronic component P and pushing it out.

Next, a fifth embodiment will be described based on FIGS. 7 and 8. In this embodiment, the suction passage 2 in the fourth embodiment is omitted, and in its place is provided a piston 18 for pushing out the electronic component P held by suction. That is, a pressure gas supply passage 19 is formed at the axial center position of the holding member 1, and a piston 18 is disposed at the end on the end surface 4 side, and a small hole 20 is bored in the end surface of the piston 18. The hole 20 is configured such that pressurized gas is blown out from the hole 20.

In this embodiment, when pushing out the electronic component P held by suction, a pressure gas source is connected to the pressure gas supply passage 19.

Then, the piston 18 is urged to protrude from the end surface 4 of the holding member 1 by the pressure gas, and at this time, the gas is ejected from the hole 20. Therefore, a gap is formed between the piston 18 and the electronic component P by the ejected gas flow, and the electronic component P
The electronic component P is pushed out in a non-contact state, and suction/holding is smoothly released, and there is no risk of the electronic component P being displaced from its normal position due to shock caused by contact between the piston 18 and the electronic component P or vibration of the piston 18.

The present invention is not limited to the above embodiments (but can be implemented in various other embodiments).

Effects of the Invention According to the holding device of the present invention, the component is not only held by suction, but also held by suction in a floating state without contacting the end surface of the holding member due to the effect of the gas flow ejected from the gas outlet. Therefore, when adjusting the position, friction with the holding member can be avoided, the parts will not be damaged, and the position can be adjusted easily and accurately.

Further, according to the second invention, by performing the non-contact suction holding in the recess, it is possible to position the component using only the recess without any special positioning means, and it is also possible to easily remove the component by releasing the suction. There is no problem with installation.

Furthermore, according to the third invention, parts can be held by suction in a non-contact manner.
By attracting the protrusions of the component to the magnetized protrusion, the component is accurately positioned so that the protrusion of the component faces the center position of the protrusion, and even electronic components with a large number of leads can be easily positioned. Using this, it is possible to accurately regulate the position of parts.

According to the fourth invention, when releasing a component held by magnetic attraction in order to mount it, the piston can press the component and instantly separate it from the end surface of the holding member, Can be held and released accurately and reliably,
Moreover, since the piston presses the component without contacting it with the gas flow ejected from the piston hole, there is no risk of the regulated position being shifted due to shock caused by contact between the piston and the component or vibration of the piston. be.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a first embodiment of the invention, FIG. 2 is a sectional view of a second embodiment of the invention, and FIGS. 3 to 5 show a third embodiment of the invention. 3 is a perspective view, FIG. 4 is a longitudinal sectional front view, FIG. The figures show a fifth embodiment of the present invention, FIG. 7 is a partially longitudinal front view, FIG. 8 is a partially sectional front view in an operating state, FIG. 9 is a perspective view of a conventional example, and FIG. 10 is a component mounting machine. FIG. 2 is an explanatory diagram of the schematic configuration of １−・−・−−−−１・−・−・−・−・−−−−
-1...-Holding member 4-----1---
・・・−・−・−・−−−−−～・−End face 4a・−・−
...--
・−Gas outlet 5−・・・・−・−−−1−−・−−−
−−1−−−−−−−−−−−−−・−Suction port (adsorption part) 18・・・・−・−・−・・−−−−1・・−・・
−−1−−−・−−−−−Piston 20−・−・・
・−・−・−・−−−−−−−−−−−−−−1...
・Hole P−・−・−−−−1−−・・・・−・・・・−・
・−111−−−−・−Electronic parts Q・−・・・・−・・
−・・−−−−−・−・−−m−−・・−・Protrusion. Figure 1 Figure 2 Figure 7 Figure 8

Claims (5)

[Claims] (1) The end face of the holding member is provided with a suction portion for holding the component and a gas outlet for lifting the component to be suctioned and held from the holding member, so that the component can be suctioned and held without contact. Features a holding device. (2) Forming a recess on the end surface of the holding member to receive the component with a gap, and a suction portion for receiving and holding the component in this recess, and floating the component from the holding member on the inner bottom surface and around the recess. What is claimed is: 1. A holding device characterized in that a gas outlet is provided for receiving a part in a recess and holding the part by suction in a non-contact manner. (3) A magnetic adsorption part for holding the component and a gas outlet for lifting the part to be adsorbed and held from the holding member are provided on the end face of the holding member, and the magnetic adsorption part is provided protruding around the part. A holding device comprising a protrusion piece that faces a protrusion made of a magnetic material and a magnet that magnetizes the protrusion piece. (4) The holding device according to claim 3, wherein the magnet is an electromagnet. (5) On the end face of the holding member, there is a magnetic adsorption part for holding the component, a gas outlet for lifting the part to be adsorbed and held from the holding member, and a gas outlet that can be protruded by gas pressure and has a gas at the protruding end. A piston having a spouting hole for releasing the article is provided, and the magnetic adsorption part is composed of a protrusion piece facing a protrusion made of a magnetic material protruding around the part and a magnet for magnetizing it. A holding device characterized by: