JPS632285Y2 - - Google Patents

Description

[Detailed description of the invention] "Field of industrial application" This invention relates to a parallel plane honing grinder.

"Prior Art" Conventionally, eccentric rotary grinding wheels 2 facing each other on a machine frame 1,
In a double-sided grinding machine 7 in which a holder 6 for a workpiece 5 is supported inside an external gear plate 4 provided between both grinding wheels 2 and 3, the lower surface of the external gear plate 4 is It is supported by the upper surface of the dynamic circular flange, and is supported horizontally by meshing with the floating gears provided inside the two flanges and the drive gear provided inside one of the flanges. When the eccentric rotating grindstones 2 and 3 become thin due to wear, or when the workpiece 5 is thin, it is necessary to adjust the external gear plate 4 up and down to a horizontal state. In this case, there was a problem in that it required time, effort, and skill to horizontally raise and lower the external gear plate 4 because the three rotary flanges were adjusted up and down independently.

``Problems to be solved by the invention'' This invention adjusts the elevation of the external gear plate 4 when the thickness of the eccentric rotating grindstones 2 and 3 changes due to wear or when the workpiece 5 is changed from thick to thin. The object of the present invention is to provide a parallel plane honing grinder that can quickly and easily change the level position without requiring time, effort, or skill for the work of changing the level position.

"Means for solving the problem" This proposal consists of eccentric rotary grinding wheels 2 facing each other on the machine frame 1,
In a double-sided grinding machine 7 in which a holder 6 for a workpiece 5 is supported inside an external gear plate 4 provided between both grinding wheels 2 and 3, a concentric circle with the same plate 4 is provided on the lower surface of the external gear plate 4. A downward flange 8 is provided, and a 3.
Support rollers 9, 9, 9 are provided on the outer periphery of the external gear plate 4, and the rollers 9, 9, 9 are each provided at the upper end of the upright screw rod 10, and each screw rod 10 is provided on the machine frame 1, respectively. Screwed into the screw 20 and the same screw rod 10
An endless chain 12 is wound around sprockets 11 with the same number of teeth provided on each of the sprockets, and a rotating handle 14 of a driving sprocket 13 that meshes with the chain 12 is provided. It is composed of a parallel plane honing grinder that is configured to raise and lower at the same time.

``Operation'' Therefore, when the rotating handle 14 is rotated in the forward and reverse directions, the drive sprocket 13 is rotated in the forward and reverse directions, and the endless chain 12 is rotated in the forward and reverse directions, thereby simultaneously rotating the three sprockets 11 with the same number of teeth in the forward and reverse directions. Since the three upright screw rods 10 are rotated forward and backward, they are raised and lowered at the same time, and the support rollers 9, 9, 9 can be raised and lowered at the same time. Since the outer peripheral lower surface of the external gear plate 4 is supported on the upper surface of the rollers 9, 9, 9, the external gear plate 4 can be adjusted up and down while maintaining its horizontal position.

``Example'' A machine frame 1 is provided with eccentric rotating grindstones 2 and 3 facing each other, and a holder 6 for a workpiece 5 is supported inside an external gear plate 4 provided between both grindstones 2 and 3. In the double-sided grinding machine 7, a downward flange 8 concentric with the external gear plate 4 is provided on the lower surface of the external gear plate 4, and three support rollers 9, 9 are provided in contact with the outer peripheral lower surface of the external gear plate 4 and the outer peripheral surface of the flange 8. , 9 are provided on the outer periphery of the external gear plate 4,
And the rollers 9, 9, 9 are each connected to an upright screw rod 10.
An endless chain 12 is wound around a sprocket 11 having the same number of teeth provided on each screw rod 10 at the upper end, and a drive sprocket 1 is meshed with the chain 12.
3 rotation handles 14 are provided, and the support rollers 9, 9, 9 are raised and lowered simultaneously by rotation of the handles 14. Each of the screw rods 10 is screwed into a female screw 20 fixed to the machine frame 1 in the rotating direction, and the screw rods 10 are raised and lowered by forward and reverse rotation. The eccentric rotating grindstones 2 and 3 are eccentric rotating discs 2a and 3a.
The supporting rollers 9, 9, 9 are arranged at an opening angle of 120 degrees as shown in FIG. As shown in FIG. 2, the drive sprocket 13 is provided on a radial line passing through the center of one support roller 9 and the center of the external gear plate 4, and as shown in FIG. It can be decelerated and rotated in forward and reverse directions via the movement device 15. In addition, 1 in the figure
6 is a drive gear that meshes with the external gear plate 4;
17 is the prime mover, 18 is a reduction bevel gear in the reduction rotation device 15, 19 is a traction screw of the chain 12,
20 is a female screw that engages with the upright screw rod 10.

``Effects'' Since the present invention is constructed as described above, there is an advantage that the horizontal elevation adjustment of the external gear plate 4 can be performed very simply and quickly by simply rotating the rotating handle 14 in the forward and reverse directions.

[Brief explanation of the drawing]

Fig. 1 is a front view showing the parallel plane honing grinder of the present invention, Fig. 2 is a plan view of the external gear plate, Fig. 3 is a related view of the support roller and rotating handle, and Fig. 4 is a side view of the drive gear. It is. 1... Machine frame, 2, 3... Eccentric rotating grindstone, 4...
External gear plate, 5... Workpiece, 6... Holder, 7
... Double-sided grinder, 8 ... Downward flange, 9 ... Support roller, 10 ... Upright screw rod, 11 ... Sprocket with the same number of teeth, 12 ... Endless chain, 13 ... Drive sprocket, 14 ... Rotation Handle, 20...
...female screw.

Claims (1)

[Scope of utility model registration request] A double-sided grinding machine 7 in which a machine frame 1 is provided with eccentric rotary grindstones 2 and 3 facing each other, and a holder 6 for a workpiece 5 is supported inside an external gear plate 4 provided between the two grindstones 2 and 3. , a downward flange 8 concentric with the external gear plate 4 is provided on the lower surface of the external gear plate 4, and three supporting rollers 9, 9, 9 in contact with the lower outer circumferential surface of the outer gear plate 4 and the outer circumferential surface of the flange 8 are attached to the outside. Provided on the outer periphery of the gear plate 4,
And the rollers 9, 9, 9 are each connected to an upright screw rod 10.
Each screw rod 10 is screwed onto a female screw 20 provided on the machine frame 1, and an endless chain 12 is wound around a sprocket 11 having the same number of teeth provided on each screw rod 10, and meshed with the chain 12. A rotation handle 14 is provided for the drive sprocket 13, and the rotation of the handle 14 causes the support rollers 9, 9,
Parallel plane honing grinder consisting of a configuration in which 9 parts are raised and lowered at the same time.