KR20020029876A - Apparatus for inserting a base automatically in fabrication of quartz oscillator - Google Patents

Abstract

PURPOSE: An automatic base insertion apparatus for manufacturing a crystal oscillator is provided to automatically insert a base into a turret in a status which is horizontally installed. CONSTITUTION: The automatic base insertion apparatus inserts a base(1) into a mounting groove(2a). A blank is assembled at the base(1). The blank is arranged on a pallet(10). A base conveyor(11) supplies at least one base(1) absorbed by a pallet(10) to a front end of a conveying rail(12). A circular turret(2) is horizontally installed at a rear end of the conveying rail(12) and is rotated one pitch by one pitch. A motor provides a rotary force to the turret(2). An insertion unit(14) is installed between the conveying rail(12) and the turret(2). The insertion unit(14) inserts the base(1) conveyed an exit of the conveying rail(12) into the mounting groove(2a).

Description

Apparatus for inserting a base automatically in fabrication of quartz oscillator

The present invention relates to a base automatic insertion apparatus, and more particularly, to an automatic insertion for the manufacture of a crystal oscillator for automatically inserting a base on which a blank is placed in a round turret in a crystal oscillator manufacturing process. Relates to a device.

The crystal oscillator is a device that combines a base with a crystal plate (hereinafter referred to as a blank) that cuts crystals of quartz at a specific angle and thickness and forms thin film electrodes on both sides, and is widely used in various communication devices requiring stable oscillation characteristics. It is used.

In order to manufacture the crystal oscillator, the blank is placed on the upper part of the base 1, and then inserted into the seating groove 2a along the circumference of the circular tarlet 2, as shown in FIG. The process of adjusting the coating thickness of the thin film electrode formed on the blank while adjusting the frequency in a machine (not shown) is performed.

Here, the operation of inserting the base into the circular tarret has been mainly performed by hand until now, and thus, the damage to the blank is not only frequent, but also a problem that the work speed is slow.

Alternatively, as shown in FIG. 2, the base 1 is automatically pushed up to the seating groove 2a in a state in which the tarlet 2 is vertically rotated at a predetermined speed through the motor unit 3. Although this has been attempted, in the case of such a structure, the use of the forced insertion method is applied to the blank, the base 1 is easily separated from the seating groove (2a) during the rotation of the turret, so that the defect rate of high defects is high. have.

In addition, the mounting grooves generally formed along the circumference of the tarret are not divided at precise intervals due to machining errors. Thus, even if the motor part 3 rotates at a precise step, the mounting portion and the mounting groove are supplied. Alignment is often misaligned and forced to fit or the blank is often broken.

On the other hand, in the case of the above structure, the shaft 3a is formed between the shaft that is the rotational axis of the motor unit 3 and the inner peripheral surface of the tarlet 2, and a shaft 3a as shown in FIG. The jaw was pinched by the jaw through the air chucking (Air chucking) via the air line so that the tarlet 2 was fixed to the shaft 3a side. Arrows in the figure indicate the flow of air.

However, this structure supplies air when the tarlet 2 is fixed to the shaft 3a, and when the separation is performed, it simply uses a method of blocking the air that was being supplied. Residual air remains inside there is a problem that separation is not easy.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an automatic base insertion apparatus for performing a base insertion operation in a state where a circular tarlet is horizontally installed.

Another object of the present invention is to provide a base automatic insertion device which guides the base to the correct position of the seating groove through the guide pin before the base is inserted into the seating groove of the tarlet.

In addition, an object of the present invention is to provide an automatic base inserting device for easily detaching the tarlet by separately configuring an airline for fixing the tarlet to the shaft, and an airline for separating.

The following drawings attached to this specification are illustrative of preferred embodiments of the present invention, and together with the detailed description of the invention to serve to further understand the technical spirit of the present invention, the present invention is a matter described in such drawings It should not be construed as limited to

1 is a perspective view showing a state that the base is inserted into a conventional circular tarlet.

Figure 2 is a schematic view showing a side view of the method for automatically inserting the base in the tarlet according to the prior art.

3 is a partial cross-sectional view schematically showing the structure of a shaft used in the automatic insertion device of FIG.

Figure 4 is a perspective view showing the appearance of the automatic base insertion apparatus according to a preferred embodiment of the present invention.

5 is a view schematically showing a structure for guiding the insert unit to the seating groove of the tarlet in FIG.

6 is a partial cross-sectional view schematically showing the structure of a shaft provided in accordance with the present invention.

<Description of main reference numerals in the drawings>

1 ... base 2 ... let 10 ... palette

11 Base feed 12 Feed rail 14 Insert unit

16 Insert pin 17 Induction pin 18 Fixed panel

19 Restoring pin 20 Shaft 22 Sealing ring

23.Closed air inlet 24.Opening air inlet

In order to achieve the above object, the automatic base inserting apparatus according to the present invention is a device for inserting a plurality of bases are assembled in a plurality of predetermined pitches along a circumference of a circular tarret, the base is assembled on a pallet. A base transfer part for sucking at least one or more bases from the pallet and supplying them to the front end of the transfer rail; A circular tarlet horizontally installed at the rear end of the transfer rail such that the inlet of the seating groove is directed upward and rotated by one pitch; A motor unit for providing a rotational force to the tarlet; And an insert unit interposed between the transfer rail and the tarlet to insert the base transferred to the outlet of the transfer rail into the seating groove.

Preferably, the present invention further includes an insert pin installed on the seating groove upper side of the tarlet to allow the base inserted into the seating groove to be seated therein, wherein the base conveying unit sucks the base from the pallet. Electromagnet member; is configured.

In addition, the shaft is a rotation axis of the motor unit; And a rod-shaped jaw positioned between the shaft and the inner circumferential surface of the tarret and being driven by receiving air from the shaft to selectively fix the tarlet. The jaw may include the jaw. A closing air inlet hole for supplying air to push against the shaft and an opening air inlet hole for supplying air to pull the jaw toward the shaft are formed.

The insert unit has a guide groove formed to accommodate the base passing through the outlet of the transfer rail, and the base is supplied to the seating groove inlet of the tarlet by rotating the insert unit 90 degrees while the base is accommodated in the guide groove. Done.

In addition, the insert unit is freely movable in the direction of the rotation axis while the insert unit is rotated by 90 degrees, and an induction pin is installed to interlock with the insert unit, so that the tapered portion of the end is inserted into an arbitrary seating groove when the insert unit is lowered. At the same time, by moving the insert unit along the rotation axis, the alignment between the guide groove of the insert unit and the opposite seating groove is aligned.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to ordinary or dictionary meanings, but should be construed as meanings and concepts consistent with the technical spirit of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

First, Figure 4 is a perspective view showing the appearance of the automatic base insertion apparatus according to a preferred embodiment of the present invention. Referring to the drawings, the present invention is to pass the pallet 10 for placing the base (1) seated on the blank and at least one base (1) from the pallet 10 to the conveying rail (12) The base 1 is formed between the base conveying part 11, the circular tarlet 2 horizontally installed at the rear end side of the conveying rail 12, and the conveying rail 12 and the tarlet 2, respectively. It includes an insert unit 14 to be inserted into the seating groove (2a) of.

The base conveying part 11 sucks the base 1 on the pallet 10 and supplies it to the front end of the conveying rail 12. In this case, the method of sucking the base 1 through the base transfer part 11 may have various modifications. Preferably, an electromagnet member 11a is installed therein to form a magnetic bar as a whole. By constructing the base conveying portion 11, the base 1 is selectively sucked.

The base 1 sucked by the base conveying part 11 is supplied to the conveying rail 12 and conveyed to the tarlet 2 side. At this time, the conveying method in the conveying rail 12 is preferably a vibration method may be variously modified in addition to this. In addition, it is preferable to have an optical sensor 13 on the conveying rail 12 to detect the conveying state of the base 1.

The tarlet 2 has a plurality of seating grooves 2a formed at a predetermined pitch along its circumference. At this time, the shape of the mounting groove (2a) can be variously modified according to the type or model of the crystal oscillator. That is, although the '49 / S 'tablet is shown in the drawing, various types of circular tablets according to the crystal oscillator may be used without being limited thereto. The tarlet 2 is preferably horizontally installed so that the entrance of the seating groove 2a is upward, and is rotated by a pitch by receiving a rotational force from a stepping motor unit (not shown).

An insert unit 14 is installed between the rear end of the transfer rail 12 and the tarlet 2 to insert the transferred base 1 into the seating groove 2a of the tarlet 2. Here, a variety of methods may be employed to insert the base 1 into the seating groove 2a using the insert unit 14, but preferably, the seated groove 2a is rotated by 90 degrees. The method of inserting by self weight by supplying to is adopted.

To this end, a guide groove 14b is formed at the upper end of the insert unit 14 so that the transported base 1 is accommodated, and is rotated 90 degrees around the rotating shaft 14c toward the tarlet 2 to allow the tarlet 2 to be rotated. The base 1 is supplied to the mounting groove 2a.

Here, a gas blowing unit 27 on one side of the conveying rail 1 to increase the conveying speed of the base 1 from the conveying rail 12 to the guide groove 14b of the insert unit 14. It is also possible to install a to blow the base 1 with gas. In this case, an inert gas such as nitrogen may be preferably employed as the gas so as not to contaminate the blank on the base 1.

In addition, preferably, a support pin 14a that is horizontally movable as shown in FIG. 5 is installed below the guide groove 14b, so that the base 1 does not fall when the insert unit 14 is rotated. The base 1 is supported, and when the insert unit 14 is in contact with the support 15, the base 1 passes through the guide rail 15a of the support 15 to fall into the seating groove 2a. Will release the state.

Here, the support 15 is installed on the mounting groove (2a) of the tarlet 2 to support the insert unit 14 rotated 90 degrees, the end that is opposed to the inner peripheral surface of the tarlet (2) is preferred The sensor unit (not shown) is installed to determine the reference position of the tablet.

In this case, since the sensor unit performs the transmission and detection of light with the tarlet 2 interposed therebetween, forming a transmission hole at a specific point of the circumference of the tarlet 2 to start or end the rotation of the tarlet 2. It is possible to detect the point. The sensor unit detects a defective state of the seating groove 2a formed on the tarlet 2 by using the sensor unit, and thus configures the present invention so that the base 1 is not inserted into the seating groove 2a in a bad state. Of course you can.

According to the present invention, the guide pin 17 and the restoring pin 19 are configured as shown in FIG. 5 so that the insert unit 14 rotated by 90 degrees is exactly opposite to the seating groove 2a.

Guide pin 17 is inserted into the mounting groove (2a) formed on the tarlet (2) through the lowering movement. At this time, the induction pin 17 is tapered downward, so that even if the mounting groove 2a process is not exactly opposed to find the hole is inserted into the correct insertion is made.

By inserting the insert unit 14 to the induction pin 17, the insert unit 14 also accurately aligns with the opposing seating groove 2a. That is, while the insert unit 14 is rotated, it becomes free (free) and moves freely in the direction of the rotation axis 14c. At this time, the support unit 15 moves to the position guided through the guide pin 17 and up to Will rotate.

On the other hand, the restoration pin 19 is linked to the lifting motion of the guide pin 17. That is, in order to bring the base 1 by rotating the insert unit 14 back to the feed rail 12 side, the guide pin 17 has to be returned to its original position along the direction of the rotation axis 14c. Restoration pin 19 is installed to be linked to the lifting movement of the).

At this time, the restoring pin 19 has a conical tapered pointed upward, coupled to the conical insertion hole (not shown) of the fixed panel 18 is fixed independently of the lifting motion of the guide pin 17. And being detached to enable the insertion unit 14 to be moved on the rotation shaft 14c or to be restored to its original position.

That is, when the guide pin 17 descends and enters the seating groove 2a, the restoration pin 19 is also lowered, and thus a clearance between the pointed portion of the end and the conical insertion hole formed in the fixing panel 18 is obtained. This causes the insert unit 14 to move on the rotary shaft 14c. In addition, when the induction pin 17 is raised, the restoration pin 19 is also raised to find and insert the insertion hole of the fixing panel 18 so that the insert unit 14 returns to its original position.

When the insert unit 14 is rotated 90 degrees on the support 15 while the alignment is aligned in the same manner as described above, the support pin 14a is released as described above, and the base 1 is the guide rail of the support 15. To 15a). At this time, of course, but fall into its own weight can be inserted into the seating groove (2a), Preferably the insert pin 16 is installed to enable the lifting movement above the guide groove (14b) of the insert unit 14 while the base ( By slightly pushing 1), it helps to settle down.

When the base 1 is inserted into the seating groove 2a as described above, the tarlet 2 is rotated one pitch so as to wait for the next seating groove 2a.

In general, since the tarlet 2 is composed of a circular frame having a hollow in the middle thereof, a fixing means must be provided to fix the tarlet 2 to the rotating shaft of the motor unit. In addition, after the base is inserted into all the seating grooves 2a on the tarret 2, since the tarlet 2 must be separated from the rotating shaft of the motor part, a fixing means that is easily removable is required.

To this end, at least two rod-shaped jaws 26 are installed between the inner circumferential surface of the tarlet 2 and the shaft 20 corresponding to the rotating shaft of the motor unit, thereby chucking the shaft 20 and the tarlet. Fixed and detached.

Various types of driving units may be configured for chucking the jaw 26, but a method of supplying air through the shaft 20 is preferably employed. Particularly, in the present invention, the shaft 20 is configured as shown in FIG. 6 to facilitate fixing and separation between the shaft 20 and the tarlet 2. Arrows in the figure indicate the flow of air.

Referring to the drawings, the bearing 21a is installed so that the shaft 20 is rotatable with respect to the housing 21, and the opening port 24b is provided in the head 20a portion of the shaft 20 to which the jaw 26 is coupled. And a closing port 23b is formed to introduce the opening air and the closing air into the head 20a, respectively, thereby driving the jaw 26.

Here, the opening air is air for pulling the jaw 26 to separate the jaw 26 from the tarlet 2, and the closing air pushes the jaw 26 on the shaft 20 side so as to be bitten by the tarlet 2. It corresponds to air. In order to accomplish this, the inside of the head 20a may be configured to include, for example, a cylinder, a cam, or the like so as to be interlocked with the bath 26 by receiving air. In this case, since a variety of well-known techniques may be employed, a detailed description thereof will be omitted.

An opening air tube 24a is installed in communication with the opening air inlet hole 24 of the shaft 20 so that the air is supplied to the head 20a of the shaft 20 as described above. The closing air tube 23a is installed in the 23b so as to communicate with the closing air inlet 23 of the shaft 20.

At this time, the air supplied from the outside of the housing 21 and introduced into the opening air inlet 24 and the closing air inlet 23 of the shaft 20 rotates the housing 21 and the shaft 20 when the shaft 20 is rotated. A sealing ring 22 is installed at both sides of the opening of the opening air inlet 24 and the inlet of the closing air inlet 23 positioned between the shaft 20 and the housing 21 so as not to leak out between the shaft 20 and the housing 21. . At this time, the sealing ring 22 may be used in various forms, but preferably X-ring having a cross-section 'X' shape is adopted, for example, excellent airtight effect even at high air pressure of 5㎏ / ㎠ Will be provided.

As the shaft 20 is rotated through the structure of the shaft 20 as described above, air is supplied to the chuck 26 by driving the jaw 26.

Then, the operation of the base automatic insertion apparatus according to the present invention including the above components will be described. Prior to this, the present invention is driven through a control means such as, for example, a programmable logic controller (PLC) so that the processes of the overall work is sequentially performed to increase the automation efficiency.

First, when the base transfer part 11 on which the electromagnet member 11a is installed sucks at least one or more, for example, eight bases 1 at the same time from the pallet 10 and supplies it to the transfer rail 12, the transfer rail 22. The base 1 is transported to the insert unit 14 located at the rear end of the insert unit 14 and is received in the guide groove 14b of the insert unit 14. At this time, the guide groove 14b is provided with a support pin 14a to support the base 1.

Subsequently, the insert unit 14 is rotated 90 degrees toward the tarlet 2 side, and is interlocked with the downward movement of the guide pin 17 to move along the rotational axis 14c direction so that the insert unit 14 is exactly aligned with the opposing seating groove 2a. While rotating to the support 15 on the upper side of the tarlet (2).

As soon as the insert unit 14 is in contact with the support 15, the support pin 14a is released so that the base 1 falls along the guide rail 15a of the support 15, whereby the insert pin 16 is It descends and slides the base 1 slightly into the seating groove 2a.

On the other hand, the tarlet 2 is preferably, by receiving a rotational force from the stepping motor rotates by one pitch, the plurality of seating grooves 2a are sequentially moved to the conveying rail 12 side, the above-described insertion operation is repeatedly performed By doing so, the automatic insertion work of the base 1 is sequentially performed in all the mounting grooves 2a of the tarlet 2.

According to the present invention, since the base is automatically inserted into the round tarlet, there is an advantage of reducing labor costs, as well as preventing damage to the blank, unlike manual labor.

In addition, the present invention has the effect that the base can be stably seated in the mounting groove because the tarlet is installed horizontally rotated by one pitch.

Particularly, according to the present invention, since the inserting operation is performed by precisely aligning the alignment between the insert unit and the seating groove through the tapered guide pin, even if there is a machining error in the seating groove spacing of the tarlet, the insertion is made precisely. Impact can be prevented from being applied, the insertion by its own weight can be made, there is an effect of preventing the base from being forced into the seating groove.

In addition, according to the present invention is provided with a base conveying portion for sucking the base in the electromagnet method has the advantage that it can easily suck a plurality of base to supply to the conveying rail.

According to the present invention, since the airline for separating the tarlet and the airline for separating from the rotary shaft are separately provided to drive the jaw, there is an advantage that rapid air chucking is performed.

Claims (6)

An apparatus for inserting a base (1) assembled with blanks aligned on a pallet (10) into a seating groove (2a) formed in plural at a predetermined pitch along the circumference of a circular tarlet (2), A base transfer part (11) for sucking at least one or more bases (1) from the pallet (10) and supplying them to the front end of the transfer rail (12); A circular tarlet (2) horizontally installed at the rear end of the transfer rail (12) such that the inlet of the seating groove (2a) faces upward and rotated by one pitch; A motor unit for providing a rotational force to the tarlet (2); And A base unit interposed between the transfer rail 12 and the tarlet 2 to insert the base 1, which is transferred to the outlet of the transfer rail 12, into the seating groove 2a. Automatic insertion device. The method of claim 1, Insert pin (16) is installed so as to be able to lift and move above the seating groove (2a) to push the base (1) supplied to the seating groove (2a) inlet through the insert unit (14); Base auto insertion device. The method of claim 1, And an electromagnet member (11a) on the base conveying portion (11) to suck the base (1) from the pallet (10). The method of claim 1, A shaft 20 which is a rotation shaft of the motor unit; And A rod-shaped jaw 26 positioned between the shaft 20 and the inner circumferential surface of the tarret 2 and selectively fixing the tarlet 2 by receiving air from the shaft 20 and chucking is performed. ); The shaft 20 has a closing air inlet 23 for supplying air to push the jaw 26 against the shaft 20 and air to pull the jaw 26 toward the shaft 20. Characterized in that the opening air inlet 24 for supplying is formed, Closing air inlet 23 and inlet and opening air inlet 24 positioned between the shaft 20 and the housing 21 to prevent air leakage when the shaft 20 rotates relative to the stationary housing 21. Base automatic insertion device, characterized in that the sealing ring 22 is installed on both sides of the inlet. The method according to any one of claims 1 to 4, In the insert unit 14, a guide groove 14b is formed to accommodate the base 1 passed through the outlet of the transfer rail 12, The insert unit 14 is rotated 90 degrees while the base 1 is accommodated in the guide groove 14b to supply the base 1 to the inlet of the seating groove 2a of the tarlet 2. Base automatic insertion device. The method of claim 5, The insert unit 14 is freely movable in the direction of the rotation axis 14c while the insert unit 14 is rotated 90 degrees, It is installed to interlock with the insert unit 14, is inserted into any seating groove (2a) through the tapered portion of the end when descending and at the same time move the insert unit 14 along the rotary shaft (14c) insert unit ( Guide base 14b of the 14) and the guide pin (17) for aligning the alignment between the opposing seating groove (2a); base auto-insertion apparatus further comprising.