CN209335379U - It is a kind of with the quartz crystal slice grinder for reviewing one's lessons by oneself orthofunction - Google Patents

Abstract

The utility model proposes a quartz crystal plate grinder with a self-correcting function. Its structure includes a workbench, an upper grinding disc, a lower grinding disc, a column, and a control panel; the center of the lower grinding disc is provided with a rotating shaft. Installed in the center of the upper surface of the workbench, the column is inverted L-shaped, the bottom is set on one side of the upper surface of the workbench, the top is connected to the rotating shaft of the grinding disc through the cylinder, and the control panel is set on the other side of the upper surface of the workbench ; The shafts of the upper grinding disc and the lower grinding disc are coaxial. The utility model has the advantages of driving the revolution and rotation of the planetary wheel through the central ring gear and the outer ring gear, and using the upper grinding disc and the lower grinding disc to grind the quartz crystal sheet at the same time, with high efficiency; self-adaptive trimming during the grinding process The grinding disc fully guarantees the flatness of the grinding disc, and has the advantages of scientific design, strong practicability, convenient use, and efficient disc repairing.

Description

A Quartz Crystal Plate Grinding Machine with Self-correcting Function

technical field

The utility model relates to a quartz crystal plate grinder with a self-correcting function, which belongs to the technical field of quartz crystal plate processing.

Background technique

Quartz crystal sheet is not only a good optical material, but also an important piezoelectric material. During the processing, the surface of the quartz crystal sheet needs to be ground and polished. When grinding and polishing the quartz crystal sheet, it is usually necessary to use grinder. Existing grinding machines generally use two methods of single-side grinding and double-side grinding to grind the surface of the quartz crystal sheet, but the single-side grinding speed is slow and the efficiency is low; the double-side grinding method simultaneously grinds the front and back sides of the quartz crystal sheet. Although the grinding process can greatly improve the grinding efficiency, the surface of the grinding disc is likely to be uneven after being ground for a long time by the quartz crystal. During mass production, the wear and tear on the grinding discs also increases accordingly, and the grinding discs need to be trimmed frequently, resulting in reduced production efficiency and increased costs.

Contents of the invention

The utility model proposes a quartz crystal plate grinder with a self-correcting function, which has reasonable structural design, convenient use, low cost, flexible adjustment, and can effectively compensate for the decrease in grinding quality caused by the decrease in the flatness of the grinding disc. Problematic correction process for adjusting the flatness of quartz crystal plate grinding. The utility model controls the flatness of the grinding disc on the basis of the existing technology to achieve a high level of improvement, is convenient to use and has strong practicability, and can be combined with the correction wheel to correct the grinding disc process method when necessary.

The technical solution of the utility model: a quartz crystal plate grinder with a self-correcting function, its structure includes a workbench 1, an upper grinding disc 2, a lower grinding disc 3, a column 7, and a control panel 8; wherein the lower grinding disc The center of 3 is provided with a rotating shaft, and the rotating shaft is installed in the center of the upper surface of the workbench 1. The column 7 is inverted L-shaped, and its bottom is arranged on one side of the upper surface of the workbench 1, and its top is connected to the rotating shaft of the upper grinding disc 2 through a cylinder. The control panel 8 is arranged on the other side of the upper surface of the workbench 1 ; the rotation axes of the upper grinding disc 2 and the lower grinding disc 3 are coaxial.

Preferably, the upper surface of the lower grinding disc 3 includes an outer gear ring 4, a central gear ring 5, and a planetary gear 6; wherein the central gear ring 5 is arranged at the rotation center of the lower grinding disc 3, and the outer gear ring 4 is located at the center of rotation of the lower grinding disc 3. On the outer edge of the lower grinding disc 3, the rotation axes of the central ring gear 5 and the outer ring gear 4 are coaxial, and five planetary gears 6 of the same size are equidistantly arranged between the central ring gear 5 and the outer ring gear 4, and each A planetary wheel 6 is tightly meshed with the outer side of the central ring gear 5 and the inner side of the outer ring gear 4 .

The utility model has the advantages: by arranging the central ring gear and the outer ring gear, the planetary wheel is jointly driven to revolve and rotate, and the upper grinding disc and the lower grinding disc are used to grind the quartz crystal sheet at the same time, so the efficiency is high; in addition, by adjusting the auxiliary machine The number of rotating speed switching circles can achieve self-adaptive dressing of the grinding disc during the grinding process, fully ensuring the flatness of the grinding disc, and has the advantages of scientific design, strong practicability, convenient use, and high efficiency of disc repairing.

Description of drawings

Accompanying drawing 1 is the structure schematic diagram of the quartz crystal plate grinder with self-correction function.

Accompanying drawing 2 is the sectional view of the meshing structure of the upper and lower grinding discs, the central ring gear, and the outer ring gear.

Accompanying drawing 3-1, 3-2 are the top view schematic diagrams of star wheel forward rotation and reverse rotation.

Attached drawings 4-1, 4-2, and 4-3 are schematic diagrams of the deformation of the inner side of the upper and lower grinding discs under the normal and reverse rotation of the star wheel, in which Figure 4-1 is a schematic diagram of the shape before work, and Figure 4-2 is a schematic diagram of the star wheel The schematic diagram of the forward rotation working shape, and Fig. 4-3 is the schematic diagram of the reverse rotation working shape of the planetary wheel.

Among the figure, 1 is a workbench, 2 is an upper grinding disc, 3 is a lower grinding disc, 4 is an outer ring gear, 5 is a central gear ring, 6 is a planetary wheel, 7 is a column, and 8 is a control panel.

Detailed ways

As shown in Figure 1, a quartz crystal plate grinder with a self-correcting function has a structure including a workbench 1, an upper grinding disc 2, a lower grinding disc 3, a column 7, and a control panel 8; wherein the lower grinding disc 3 passes The rotating shaft is installed in the center of the upper surface of the workbench 1. The column 7 is in an inverted L shape, and its bottom is set on the upper surface of the workbench 1. The rotating shafts of the disk 3 are coaxial; the control panel 8 is arranged on the other side of the upper surface of the workbench 1 .

The upper grinding disc 2 and the lower grinding disc 3 are ductile iron materials, the lower surface of the upper grinding disc 2 and the upper surface of the lower grinding disc 3 are smooth planes, and grooves are provided on the surface so that the grinding liquid can be evenly Flow; the rotating shaft in the center of the upper grinding disc 2 is fixed on the bracket by screws, and can be adjusted up and down by the cylinder, and then moves circularly with the central ring gear after falling; the lower grinding disc 3 does not rise and fall, and a three-point support for adjusting the level is set at the bottom structure, the deflection of the lower grinding disc 3 can be fine-tuned, and the rotating shaft at the center of the lower grinding disc 3 is fixed on the tray inside the workbench 1 by screws, and can move circularly with the tray.

As shown in Figure 2, the upper grinding disc 2 is lowered and pressed on the upper surface of the planetary wheel, the lower grinding disc 3 is coaxial with the upper grinding disc 2 and has the same outer diameter, and the central ring gear 5 is arranged at the rotation center of the lower grinding disc 3, The outer ring gear 4 is arranged on the outer edge of the lower grinding disc 3, the rotating shafts of the central ring gear 5 and the outer ring gear 4 are coaxial, and 5 same-sized ring gears are equidistantly arranged between the central ring gear 5 and the outer ring gear 4. Planetary wheels 6, each planetary wheel 6 is tightly meshed with the outer side of the central ring gear 5 and the inner side of the outer ring gear 4. The outer ring gear 4 adopts the design of Φ330mm and 305 teeth; the central ring gear 5 adopts the design of Φ195mm and 100 teeth; the planetary wheel 6 adopts the design of Φ231mm and 108 teeth.

As shown in Figure 3-1 and 3-2, when the rotation speed of the central ring gear 5 is greater than the rotation speed of the outer ring gear 4, the planetary wheel 6 and the outer ring gear 4 will move relative to each other, and will move opposite to the center ring gear 5. The lower grinding disc 3 forms a shape that is high in the middle and low around the periphery, as shown in Figure 4-2; when the rotation speed of the outer ring gear 4 is greater than the rotation speed of the center ring gear 5, the planetary wheel 6 and the outer ring gear 4 move in opposite directions. Relatively moving with the central ring gear 5, the lower grinding disc 3 forms a shape with a lower center and a higher perimeter as a whole, as shown in Figure 4-3.

The main body of the grinding machine proposed by the utility model adopts the grinding machine of model 9B-5L (Ⅱ), the main motor is controlled by EV1000-4T0037G frequency conversion speed regulator, the input power is three-phase 380V, and the programmable controller model adopted by the control panel 8 For SIEMENS S7-200CN. The utility model adopts a 3-Motor drive mode, that is, the upper and lower grinding discs, the outer ring gear and the center ring gear are respectively controlled by independent motors, and the control panel 8 is connected to each motor through a wire, and controls its rotation direction and speed.

During actual work, place the quartz crystal piece in the star wheel, set the speed of the upper grinding disc: the revolution speed of the star wheel: the overall speed of the lower grinding disc = 1:1:-3, because the upper and lower grinding discs turn in opposite directions, the quartz The upper and lower surfaces of the crystal sheet form the same speed difference with the relative grinding disc, which ensures the consistent grinding amount of the upper and lower surfaces of the quartz crystal sheet, and makes the quartz crystal sheet obtain excellent parallelism and flatness.

In the normal process of grinding quartz crystal slices, it is no longer necessary to correct the grinding disc with the correction wheel, but by setting the parameters such as the number of forward and reverse rotations and rotational speeds of the star wheel reasonably, the flatness of the disc surface of the grinding machine can be achieved within the process requirements. Within the range, and after the flatness of the grinding disc changes, it can be automatically corrected during the grinding process of the quartz crystal plate.

By clicking the touch screen on the control panel 8, you can set and modify the "master speed", "auxiliary speed +", "auxiliary speed -", "secondary speed switching circles +", "auxiliary speed switching full change laps-" and other grinding parameters to control the rotation speed of each grinding disc; the speed of the main machine and auxiliary machine can be set at a faster speed by referring to the ratio of the speed of the main machine and auxiliary machine during normal grinding, so as to achieve the purpose of rapid disk repair. The settings of "Auxiliary Machine Speed Switching Turns+" and "Auxiliary Machine Speed Switching Turns-" can be changed according to the flatness of the grinding disc. Decreasing trend (that is, the outer high and inner low), then the "auxiliary machine speed switching circles +" is set to 70 circles, and the "auxiliary machine speed switching circles -" is set to 30 circles. On the contrary, if the section of the lower grinding disc is from the outer circle to the The height of the edge section of the inner ring is gradually increasing (i.e. low on the outside and high on the inside), then the "secondary engine speed switching turns +" is set to 30 turns, and the "auxiliary engine speed switching turns -" is set to 70 turns.

Claims (3)

1. it is a kind of with the quartz crystal slice grinder for reviewing one's lessons by oneself orthofunction, it is characterized in that including workbench, top lap, lower grinding Disk, column, control panel；The center of abrasive disk is wherein descended to be equipped with shaft, shaft is installed on the upper surface center of workbench, column In inverted L shape, bottom is set to the upper surface side of workbench, and top connects the shaft of top lap, control plane by cylinder Plate is set to the upper surface other side of workbench；The shaft of top lap and lower abrasive disk is coaxial.

2. it is according to claim 1 a kind of with the quartz crystal slice grinder for reviewing one's lessons by oneself orthofunction, it is characterized in that described The upper surface of lower abrasive disk includes outer gear ring, center gear ring, erratic star wheel；Wherein center gear ring is set in the rotation of lower abrasive disk The heart, outer gear ring are set to the outer of lower abrasive disk, the concentric rotation axis of center gear ring and outer gear ring, between center gear ring and outer gear ring It is equidistantly equipped with the identical erratic star wheel of size, each erratic star wheel is closely nibbled with the outside of center gear ring and the inside of outer gear ring It closes.

3. it is according to claim 1 a kind of with the quartz crystal slice grinder for reviewing one's lessons by oneself orthofunction, it is characterized in that described Top lap, lower abrasive disk, outer gear ring and center gear ring respectively with rotate independently of one another motor and connect, control panel is by leading Line be separately connected top lap, lower abrasive disk, outer gear ring and center gear ring rotating electric machine.