JP2614802B2 - Power supply device for rodless cylinder slide table - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for moving a rodless cylinder on a straight path in various production and processing facilities .
Rod table that supplies power to the slide table
The present invention relates to a power supply device for a slide table of a cylinder .

[0002]

2. Description of the Related Art FIG. 9 shows that power is supplied through a cable to a moving body (slide table) moving on a linear track (guide). In FIG. 10, a power supply path also serving as a track is provided, the moving body is suspended on the track, and power is supplied to the moving body from the power supply path through a contact-type current collecting arm or the like. It is shown.

In a conventional power supply apparatus for a mobile body using a cable, care must be taken to prevent the cable from being damaged due to a contact accident or the like during operation, and the maintenance burden is large. In addition, a power supply device for a moving body using a contact-type current collecting arm has a short life and requires a large maintenance burden.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a rodless
An object of the present invention is to supply power through a non-contact portion without using a connecting member such as a cable or a contact-type current collecting arm in a power supply device for a cylinder slide table .

[0005]

SUMMARY OF THE INVENTION According to the present invention, there is provided a slide table for a rodless cylinder.
On the cylinder tube in the power supply device to the
The table is slidably supported, and the cylinder tube
A Slide table by rodless cylinder in flow passage
Is moved to the side of the air flow path of the cylinder tube.
A slit with an open upper end is formed, and the cylinder tube
The head cover connected to both ends of the
A vertical groove is formed in the device, and a closed magnetic circuit is formed.
Both ends of the horizontally extending iron core are inserted into the grooves and supported.
Parts other than both ends of the iron core are maintained in the slit.
And a secondary core surrounded in a non-contact state on the upper horizontal part of the iron core.
Yl is connected to the lower end of the slide table, the core lower
The primary coil is enclosed in the horizontal part .
You.

[0006]

[Function] When an alternating current is applied to the primary coil, an induced electromotive force is generated in the secondary coil, and the alternating current is converted to a rodless cylinder.
Can be used on slide tables . And
Even if the slide table of the rodless cylinder moves on the movement path along the iron core, the power supply is continued.

[0007]

FIG. 1 shows a rod to which a transformer according to the present invention is applied.
The principle of the power supply device to the slide table of the less cylinder is shown. Iron core 3 is made of silicon steel plate, amorphous magnetic material,
Are laminated or wound to form a square frame having four sides, and a closed magnetic circuit is formed. A primary coil case 11 surrounding the core 3 is disposed on one side of the core 3, and the primary coil 1 (for example, a wire diameter) is attached to the primary coil case 11.
0.15mm, 3000 turns). A secondary coil case 12 is disposed on a side diagonal to the side on which the primary coil 1 is disposed so as to surround the iron core 3 in a non-contact state and to be able to reciprocate. 2 (for example,
Wire diameter 0.28mm, number of turns 500) is arranged. Primary coil 1
, A magnetic flux is generated in the iron core 3 by the current, and the magnetic flux passes through the secondary coil 2, so that an induced electromotive force is generated in the secondary coil. As described above, the alternating current flowing through the primary coil 1 generates a magnetic flux in the closed magnetic circuit of the iron core 3, and the alternating current flows through the secondary coil 2 by the magnetic flux.
Power is supplied even when the secondary coil 2 is moved along the iron core. The secondary coil case 12 is connected to a moving body, and the alternating current flowing from the secondary coil 2 is converted into direct current by a rectifier circuit, stabilized through a smoothing circuit and a constant voltage circuit, and this direct current is used in various industrial applications. Can be used.

FIGS. 2 to 4 show the present invention.Rodless cylinder
Slide tablePower supply device to the
A first embodiment applied to a headless cylinder is shown.And
You. Figure 2 is a plan view of a rodless cylinder with a brake device
FIG. 3A is a sectional view taken along the line AA in FIG. 2, and FIG.
FIG. 4 is a sectional view taken along the line BB of FIG. 2, and FIG. 4 is a sectional view taken along the line CC of FIG.
It is sectional drawing. At both ends of cylinder tube (track) 13
Head covers 14 and 15 are connected in series, and cylinder tube 13
Slider 17 is slidably supported via guide 16 etc.
The slider 17 is a rodless cylinder tube 13.
It is moved by the cylinder 18. On top of slider 17
Slider cover 19 is connected to slide table 20
And a brake device (not shown) in the slide table 20.
) Are arranged. Rodless in cylinder tube 13
On both sides of the cylinder 18, a first slit having a vertically long upper end opened
G 4 and the second slit 5 along the cylinder tube 13
A power supply device for the moving body is provided in the first slit 4.
Is established.

An air flow path 50 having a circular cross section is formed at the center of the cylinder tube 13, and a slit having a predetermined width is formed at an upper portion of the air flow path 50. The upper and lower surfaces of the slit are sealed by flexible upper and lower bands 51 and 52, and both ends of the upper and lower bands 51 and 52 are fixed to the head covers 14 and 15. Due to the pressure of the air acting on the lower surface of the lower band-shaped body 52, the lower band-shaped body 52 is pressed into the groove below the slit to prevent the air in the air flow path 50 from leaking. The upper band-shaped body 51 is considerably wider than the slit, and the wide upper band-shaped body 51 widely covers the upper surface of the slit to prevent foreign matter from entering the slit. The upper portion of the port guide 53 is inserted and connected to the groove of the slider 17, and scrapers 54 are connected to both ends of the groove. When the slide block 55 and the port guide 53 move in the air flow path 50, the slide table 20 moves. A piston cover 56 is connected to both ends of the slide block 55, and a blind hole 57 having an open outside is formed in the piston cover 56. Cylindrical projections 58 project from both end walls of the air flow path 50, and the flow path in the cylindrical projection 58 communicates with an air source or the atmosphere via a control valve. The blind hole 57 and the cylindrical projection 58 buffer the slide block 55 at the stroke end.

The head covers 14 at both ends of the first slit 4
In the portion facing 15, vertical concave grooves 9, 9 ′ are formed from above to predetermined positions. The iron core 3 of the power feeding device is made by further extending the iron core shown in FIG. 1, and by inserting the vertical portions at both ends into the concave grooves 9 and 9 ′ from above, the horizontal portion becomes horizontal and the first slit 4 is formed. Is placed within. After the insertion, the lid members 21 and 22 are attached. A primary coil case 11 surrounding the core 3 is disposed in the lower horizontal portion 6 of the core 3, and the primary coil 1 is disposed in the primary coil case 11. Similarly, a secondary coil case 12 is disposed on the upper horizontal portion 7 of the iron core 3 so as to surround the iron core 3 in a non-contact state and to be able to reciprocate.
Is arranged. Secondary coil case 12 is a slide table
The slide table 20 is fixed to the lower end of
The secondary coil case 12 moves along the upper horizontal portion 7 of the iron core 3 when moving on the cylinder tube 13 via the like. A control device 39 is disposed above the secondary coil case 12 of the slide table 20, and the output of the secondary coil 2 is input to the power supply circuit of the control device 39 through the wiring 23 and the connector. The power supply circuit of the control device 39 includes a rectifier circuit, a smoothing circuit, a constant voltage circuit, and the like, and can extract power of a desired voltage and current from a plurality of terminals 25 arranged on the side surface of the slide table 20.

FIGS. 5 and 6 show a rodless cylinder according to the present invention.
A second embodiment is shown in which the power supply device for the slide table is applied to a rodless cylinder with a brake device. In the second embodiment, an optical position detecting device is added to the first embodiment, and the same parts as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and the description thereof is omitted in principle. . A first slit 4 and a third slit 8 which are vertically elongated and open at the upper end on both sides of the rodless cylinder 18 in the cylinder tube 13.
(The width is considerably narrower than the first slit 4.) Is formed along the cylinder tube 13. In the first slit 4, the first
As in the embodiment, a power supply device for the slide table of the rodless cylinder is provided. At the side of the third slit 8, two upper and lower transmission paths 26 and 27 parallel to the third slit 8 are provided.
Is formed, and a horizontal slit is formed between the transmission paths 26 and 27 and the third slit 8.

As shown in FIGS. 5 and 6A, the support member 28 includes a plate-like portion 29 inserted into the third slit 8 and a cylindrical portion 30 inserted into the transmission passages 26. 31 and fin-shaped portions 32 and 33 for fixing are integrally connected. Fig. 6 (b),
As shown in (c), an infrared light emitting diode (LED) 34 is inserted and fixed in the cylindrical portions 30 and 31. A vertical groove 36 is formed between the wiring space 35 in the slide table 20 and the lower end of the slide table 20, the upper portion of the support member 28 is inserted into the vertical groove 36, and the fin 32 is formed in the wiring space 35. The fin-shaped portion 33 is located below the slide table 20, and the support member 28 is attached to the vertical groove 36. Infrared light emitting diode
34 is a wiring in the support member 28, a connector 38, a wiring space 35
Control device in slide table 20 through wiring 37 in
Connected to 39. A light receiving element (phototransistor; not shown) is disposed at a position facing the transmission paths 26 and 27 of the head cover 14, and the infrared light emitting diode 34 and the light receiving element are opposed to each other with their optical axes aligned. The light emitted from the infrared light emitting diode 34 is received by the light receiving element, and the infrared light emitting diode 34 is received.
(The position of the slide table 20) can be known.

FIGS. 7 and 6 show a rodless cylinder according to the present invention.
A third embodiment is shown in which the power supply device for the slide table is applied to a rodless cylinder with a brake device. In the third embodiment, a magnetic position detecting device is added to the second embodiment, and the same parts as those in the second embodiment are denoted by the same reference numerals as those in the second embodiment, and the description thereof is omitted in principle. . A groove is formed along the third slit 8 at a position above the transmission path 26 at the upper end of the cylinder tube 13, and a number of magnetic poles are arranged at predetermined intervals in the longitudinal direction at the bottom of the groove. The magnetic scale 40 is provided. At the lower end of the slide table 20, above the magnetic scale 40, a position detection sensor (magnetic sensor) 41 is disposed so as to face the magnetic scale 40. The movement amount of the slide table 20 is detected by the position detection sensor 41, and the detected signal is transmitted to the wiring 42 and the connector 43.
Are sent to the control device 39 through the like. Using the signal detected by the position detection sensor 41, the slide table 20
Can be controlled or stopped at a desired position.

FIG. 8 shows a slide of the rodless cylinder of the present invention.
A fourth embodiment in which the power supply device for the id table is applied to a rodless cylinder with a brake device is shown. In the fourth embodiment, the arrangement of the third embodiment is changed, and an air supply tube is added. The same portions as those in the third embodiment are denoted by the same reference numerals as those in the third embodiment, and the description thereof will be made in principle. Omitted.
As shown in FIG. 8, in the fourth embodiment, the optical position detecting device and the magnetic position detecting device of the third embodiment are
And an air supply tube at the right side where the optical position detecting device was located. Therefore, the fourth slit 10 on the left side has a shape in which the third slit 8 is united on the left side of the first slit 4. A magnetic scale 40 in which a number of magnetic poles are arranged at predetermined intervals in the longitudinal direction is provided at the bottom of the concave groove at a position corresponding to the upper side of the passage 26. At the lower end of the slide table 20, above the magnetic scale 40, a position detection sensor (magnetic sensor) 41 is disposed so as to face the magnetic scale 40. An air supply tube 44 is provided in the second slit 5 on the right side, and air can be supplied from the head cover 15 to the slide table 20 through the air supply tube 44. The selection and arrangement of the iron core 3, the optical position detecting device, the magnetic position detecting device, the air supply tube 44, and the like can be appropriately changed as necessary.

[0015]

The slide of the rodless cylinder according to the present invention.
In the power supply device to the table, the air flow in the cylinder tube
A slit with an open top is formed on the side of the road,
Iron core, primary coil, secondary coil, secondary where the circuit is formed
Supply of connecting means, etc., between the coil and the lower end of the slide table
The main part of the electrical equipment is housed in the slit and
Protected. Therefore, the rodless cylinder slide
The safety of the power supply device to the table is high and the cylinder
Cylinder tube which can be called dead space of tube
Utilizing the side of the air flow path of the
The rodless cylinder is compact because
It became small and very easy to use. The present invention
Power supply device for the slide table of the woodless cylinder
Is the head cover connected to both ends of the cylinder tube
Has a vertical groove at the position on the slit side,
Both ends of a horizontally extending iron core with a closed magnetic circuit formed
Inserted and supported in the groove, the parts other than both ends of the iron core
Maintained in the slit. Thus, the iron core lock
It is extremely easy and secure to mount on the dress cylinder,
In addition, the primary and secondary coils surrounding the iron core
The space to be placed in the rack is easily obtained.

[Brief description of the drawings]

FIG. 1 shows a rodless silicone applied to an embodiment of the present invention.
FIG. 3 is a perspective view showing the principle of a power supply device for a slide table of a solder .

FIG. 2 is a partially broken plan view of the rodless cylinder with a brake device according to the first embodiment of the present invention.

FIG. 3A is a sectional view taken along line AA of FIG. 2, and FIG.
FIG. 3B is a sectional view taken along line BB of FIG. 2.

FIG. 4 is a sectional view taken along line CC of FIG. 2;

FIG. 5 is a sectional view of a rodless cylinder with a brake device according to a second embodiment of the present invention (corresponding to FIG. 3 of the first embodiment);
It is.

FIG. 6 is a view showing a support member used in a second embodiment and a third embodiment of the present invention.

FIG. 7 is a sectional view of a rodless cylinder with a brake device according to a third embodiment of the present invention (corresponding to FIG. 3 of the first embodiment);
It is.

FIG. 8 is a sectional view of a rodless cylinder with a brake device according to a fourth embodiment of the present invention (corresponding to FIG. 3 of the first embodiment);
It is.

FIG. 9 is a diagram showing a conventional power supply apparatus for a mobile object using a cable.

FIG. 10 is a diagram illustrating a conventional power supply apparatus for a mobile body using a contact-type current collecting arm.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Primary coil 2 Secondary coil 3 Iron core 6 Lower horizontal part 7 Upper horizontal part 16 Guide 20 Slide table

────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical indication F15B 15/14 330 F15B 15/14 330 (72) Inventor Hitoshi Yamamoto Kinudai 4 -2-2 SMC Co., Ltd., Tsukuba Technology Center (72) Inventor Akio Kami 4-2-2 Kinudai, Taniwahara-mura, Tsukuba-gun, Ibaraki Prefecture SMC Co., Ltd., Tsukuba Technology Center (56) References JP-A-63 −188541 (JP, A) Actually open 1979-43408 (JP, U)

Claims (1)

(57) [Claims] 1. A slide table on a cylinder tube
Is slidably supported in the air passage of the cylinder tube.
Slide table moved by rodless cylinder
The upper end is open at the side of the air flow path of the cylinder tube.
A slit is formed at both ends of the cylinder tube.
The connected head cover is perpendicular to the slit side
Grooves are formed, and a closed magnetic circuit is formed to extend horizontally.
Both ends of the building core is supported by being inserted into the groove, the
Parts other than both ends of the iron core are maintained in the slit, and
The secondary coil surrounded by the upper horizontal part without contact
Connected to the lower end of the id table ,
Is the slide of the rodless cylinder in which the primary coil is surrounded.
Power supply to the table.