JPH0537449U - Quartz plate laminate polishing equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] Even if the crystal plate 3 is formed in a thin plate shape and the crystal plate laminate 4 is further formed into a small size, the crystal plate laminate 4 is bent or misaligned during the polishing process. It is an object of the present invention to provide a quartz plate laminate polishing device that can reliably prevent such a situation. [Structure] Receiving bodies 5 and 6 are attached to the left and right of a crystal plate laminated body 4 in which a large number of crystal plates 3 cut out at a predetermined angle with respect to a crystal axis 2 of a crystal 1 are superposed, and rotation is transmitted to a rotation drive unit 7. Mechanism 8
The quartz plates laminated body in which the receiving bodies 5 and 6 are supported by the opposed bearing portions 9 and 10 provided via the bearings and the quartz plate laminated body 4 is supported and rotated, and the rotating quartz plate laminated body 4 is polished by the polishing member 11. In the polishing apparatus, the rotation transmission mechanism 8 is provided with the tuning transmission mechanism 12 for transmitting the rotational drive transmitted to the one opposite bearing portion 9 to the other opposite bearing portion 10, so that both the opposite bearing portions 9 and 10 are tuned and rotated. A quartz plate laminate polishing device configured to be pressed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a crystal plate laminate polishing apparatus for polishing a crystal plate laminate obtained by superposing a plurality of crystal plates cut out at a predetermined angle with respect to a crystal axis of a crystal.

[0002]

[Prior Art]

 A thin crystal plate is used for the crystal oscillator, and the resonance frequency of the crystal oscillator depends on the cutting angle with respect to the crystal axis of the crystal.

Therefore, in order to mass-produce a large number of crystal plates having a constant resonance frequency, the crystal plates are manufactured by the following steps.

As shown in FIGS. 1, 2, and 3, a large number of thin plate-like crystals are sliced at a predetermined angle with respect to the crystal axis 2 of the crystal 1 (the axis of the seed to be grown in artificial quartz). Cut out the crystal plate 3.

The cut crystal plates 3 are joined one by one with a wax or the like so that the front and back faces are not reversed, and a rod-shaped crystal plate laminate 4 is formed.

As shown in FIG. 4, the crystal axis (seed) portion 2 of the rod-shaped crystal plate laminated body 4 is cut off, and if necessary, for example, it is divided into four equal parts in a desired size. After processing to a desired size, the quartz plate laminate 4 is polished into a desired shape, for example, a perfect columnar shape, by a polishing device.

As shown in FIGS. 5 and 6, this polishing means is provided with center receiving pieces 5 and 6 as receiving bodies at the centers of the left and right ends of the crystal plate laminate 4, and the center receiving pieces 5 and 6 are rotated. It is supported by the opposite bearings 9 and 10 of the driving body.

By operating this rotation driving body, the opposing support portion 9 is rotated through the rotation transmission mechanism, and the quartz plate laminate 4 is rotated about its axis.

A hard polishing member such as a diamond grindstone is brought into contact with the rotating quartz plate laminate 4 for polishing.

When the polishing is completed, the crystal plate laminate 4 is warmed by putting it in hot water, and the wax as an adhesive is melted to separate it into a large number of crystal plates.

[0011]

[Problems to be solved by the device]

 One of the opposed bearings for rotating and polishing such a conventional quartz plate laminate is fitted and connected to one of the center receiving pieces of the quartz plate laminate, and is rotationally driven by the rotation transmission mechanism so as to rotate the quartz plate laminate. Rotate.

However, the other opposing bearing portion is merely a receiver, and for example, even if it is connected to the other center receiving piece, this opposing bearing portion is provided with a freely rotatable bearing. The part only idles as the quartz plate laminate rotates, and is not rotationally driven.

Therefore, since the structure is such that the quartz plate laminated body is rotationally driven only by one of the opposed bearing portions, a twisting force is generated in the quartz plate laminated body due to the rotation difference of the opposed bearing portions due to the resistance of the bearing portion or the like. I will end up. This twisting force may cause the crystal plate laminate to be misaligned or broken.

In addition to this twisting force, the wax of the adhesive may be melted and broken due to the rotational sliding frictional heat generated between the bearing portion or the opposing support portion and the jig.

If it is bent once in this way, the front and back directions of the respective quartz plates cannot be known, so that they cannot be joined again and cannot be commercialized.

Particularly in recent years, along with the miniaturization of electric products, there is an increasing demand for miniaturization and thinning of quartz plates. Therefore, in polishing a quartz plate laminate having a small diameter and a thin plate, even a slight twist is required. It may be broken by force or heat, and even if the thin plate cutting technology of quartz progresses, it cannot meet the needs for miniaturization in this polishing process, and the above-mentioned problem is a serious problem to be solved.

The present invention solves such a problem, and even if a crystal plate is formed in a thin plate shape and the crystal plate laminate is formed into a small size, the crystal plate laminate is broken or brazed during the polishing process. It is a technical issue to provide a quartz plate laminate polishing device capable of reliably preventing the occurrence of abrasion.

[0018]

[Means for Solving the Problems]

 The gist of the present invention will be described with reference to the accompanying drawings.

A plurality of crystal plates 3 cut out at a predetermined angle with respect to the crystal axis 2 of the crystal 1 are superposed on each other. Quartz for polishing the quartz plate laminate 4 which is rotated by the polishing member 11 so as to support and rotate the quartz plate laminate 4 by bearing the receivers 5 and 6 on the opposed bearing portions 9 and 10 provided via the mechanism 8. In the plate laminated body polishing apparatus, both of the opposed bearings 9 and 10 are rotatably synchronized with each other, and a tuned transmission mechanism for transmitting the rotational drive transmitted to one opposed bearing 9 to the other opposed bearing 10. The present invention relates to a quartz plate laminated body polishing apparatus characterized in that the rotation transmitting mechanism 8 is provided with 12 so as to rotate both opposing bearing portions 9 and 10 in synchronism.

[0020]

[Action]

 Opposing support portions 9 and 10 connected to the left and right receivers 5 and 6 of the crystal plate laminate 4 are both rotationally driven by the rotation transmission mechanism 8 of the rotation drive unit 7, and the crystal plate laminate 4 rotates. One of the opposite bearings 9 and 10 rotates by the rotation transmission mechanism 8, and the other opposite bearing 10 rotates by the tuning transmission mechanism 12 provided in the rotation transmission mechanism 8. Rotate in synchronization.

Therefore, the quartz plate laminate 4 has a structure in which no twisting force is generated and rotational sliding friction heat is hardly generated.

[0022]

【Example】

 In this embodiment, the receivers (center receiving pieces) 5 and 6 are attached to the centers of the left and right end surfaces of the crystal plate laminate 4 cut to have a desired diameter as shown in FIG. 5 by the procedure described in the conventional example. Are fixed by adhesion.

The one receiving body (center receiving piece) 5 is fitted and connected to the one opposing support portion 9 in a slip-out state, and the other receiving body 6 is in the center recess as in the conventional case, and the tip of the other opposing support portion 10 is formed. The convex part is abuttingly fitted.

In the present embodiment, both the opposite bearing portions 9 and 10 are rotationally driven, and further, the opposite bearing portions 9 and 10 are synchronously rotated to rotate the quartz plate laminate 3 between the opposite bearing portions 9 and 10. ing. Therefore, unlike the conventional case, the twisting force due to a slight left / right rotation difference is not generated in the crystal plate laminate 4. Further, no rotational sliding friction occurs.

Next, the rotation transmission mechanism 8 and the tuning transmission mechanism 12 of the rotation drive unit 7 of this embodiment will be described with reference to FIG.

A rotary gear 15 is provided on the rotary shaft 14 of the drive motor 13, and a transmission gear 16 meshing with the rotary gear 15 is provided at the base of the rotary transmission shaft 17 of one of the opposed bearings 9 to rotate the rotary shaft 14. Is transmitted to one of the opposite bearings 9.

Further, a tuning transmission rotary shaft 18 is arranged in parallel along the facing direction of the opposed bearings 9 and 10, and a transmission gear that meshes with the rotary gear 15 of the rotary shaft 14 at one end of the tuning transmission rotary shaft 18. 19 and a tubular tuning transmission gear 20 at the other end, and a transmission gear 22 meshing with this tubular gear 21 via a gear 21 meshing with this tubular tuning transmission gear 20 oppositely supports the other. It is provided at the base of the rotation transmission shaft 23 of the portion 10, and the rotation of the opposite bearing 10 is also tuned and transmitted to the other opposite bearing 10.

Although there is no strict distinction between the rotation transmission mechanism 8 and the tuning transmission mechanism 12, in the present embodiment, the rotation transmission of the drive motor 13, the rotation shaft 14, the rotation gear 15, the transmission gear 16, and the rotation transmission shaft 17 is performed. In the mechanism 8, the tuning transmission rotary shaft 18, the transmission gear 19, the tuning transmission gear 20, the gear 21, the transmission gear 22, and the rotation transmission shaft 23 become the tuning transmission mechanism 12.

Reference numeral 24 in the drawing denotes a mounting portion of the gear 21.

When adjusting the facing distance between the facing bearings 9 and 10, the gear 19 slides in a tubular tuning transmission on the circumferential surface of the tubular gear of the gear, and the rotation transmission mechanism 8 and tuning transmission are engaged. The mechanism 12 is not supported.

[0031]

[Effect of the device]

 Since the present invention is configured as described above, the quartz plate laminated body is extremely resistant to twisting force and rotational sliding frictional heat, so that the quartz plate laminated body is securely prevented from being misaligned or broken. In particular, in response to thinning and miniaturization of crystal plate laminates, it is possible to excel in polishing of crystal plate laminates in which thin crystal plate laminates are processed to a small diameter, resulting in miniaturization. It is an excellent crystal plate laminate polishing device that can mass-produce crystal plates that meet the needs of

[Brief description of drawings]

FIG. 1 is an explanatory view showing a step of cutting out a crystal plate.

FIG. 2 is an explanatory view showing a lamination process of crystal plates.

FIG. 3 is a side view of a crystal plate laminate.

FIG. 4 is an explanatory view of a cutting process seen from a side surface of the crystal plate laminate.

FIG. 5 is an explanatory view of a step of attaching a receiver (center receiving piece) in which a part of the crystal plate laminated body is cut out.

FIG. 6 is an enlarged front view of a main part showing a bearing-fixed state of the crystal plate laminate and the crystal plate laminate of the present embodiment.

FIG. 7 is a front view of the main part of this embodiment.

[Explanation of symbols]

 1 Quartz 2 Crystal axis 3 Quartz plate 4 Quartz plate laminate 5 Receptor 6 Receptor 7 Rotation drive unit 8 Rotation transmission mechanism 9 Opposed bearing 10 Opposed bearing 11 Polishing member 12 Tuning transmission mechanism

Claims (1)

[Scope of utility model registration request] 1. A receiver is attached to the left and right of a crystal plate laminated body obtained by stacking a large number of crystal plates cut out at a predetermined angle with respect to a crystal axis of a crystal, and is provided in a rotation drive unit via a rotation transmission mechanism. In the crystal plate laminate polishing apparatus for supporting and rotating the crystal plate laminated body by supporting the receiving body on the opposed bearing portion and polishing the rotating quartz plate laminated body by the polishing member, both of the opposed support portions are rotatable. A tuning transmission mechanism is provided in the rotation transmission mechanism for synchronously transmitting the rotational drive transmitted to one of the opposed bearing portions to the other opposed bearing portion, and both of the opposed bearing portions are configured to rotate in synchronization. A quartz plate laminate polishing device.