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INVENTION
Russian Federation Patent RU2189896
DEVICE FOR PROCESSING cabochons of semiprecious stones
Name of applicant: Kaliningrad State Technical University
Name of the inventor: Tilipalov VN .; Peretyatko SB .; Akimov SS .; Aleshkevich VV
The name of the patentee: Kaliningrad State Technical University
Address for correspondence: 236000, Kaliningrad, Soviet Ave, 1, University of Technology, Patent Department, zav.patentnym L.A.Odnosum department.
Starting date of the patent: 2001.01.03
The invention relates to devices for handling articles of complex-precious stones. The device comprises a fixed stop, grinding wheel drive platform and a tool holder mounted on it for fixing the workpiece associated with the copier. The latter serves to report the holder of a complex motion on a certain trajectory. On the other additional holder mounted copiers made interchangeable with different profiles having the possibility of continuous and planetary movement about a common axis and periodic interaction with a stationary abutment. Peripherals abrzivnogo range has a profile that fits the profile of the top of cabochons. The platform is movable in a plane perpendicularly to the end face of the abrasive wheel. The invention improves the performance and functionality of the device.
DESCRIPTION OF THE INVENTION
The present invention relates to mechanical engineering, in particular to devices for processing complex-products from precious stones.
A device for processing cabochons US patent 3420005, M. Cl. In 24 9/16, NKI 51-121, appl. 23.12.1964, the date of grant of the patent 01.07.1969.
This device comprises a platform, drive grinding wheel and workpiece holder for fastening, reinforced with the possibility of committing a complex movement by the copier.
Wherein the holder is fixed to the guide mounted movably in a plane perpendicular to the holder axis. The above-mentioned guides are connected to the platform and mounted for rotation about the axis of the machine base, but also to be moved in a plane perpendicular to the surface of the abrasive wheel. As indicated above, the device has a pair of cams. One of them, mounted on a tool holder, interacting with the focus, sets the shape of the product base. The second form sets the copier products top.
The known device has a number of drawbacks, the main of which is its low productivity, the use of manual labor, and limited processing capability (only products of the same base profile).
The tasks that have set themselves the authors of the proposed technical solutions are:
- Expanding functionality by simultaneously processing products to give them a different shape;
- productivity increase;
- Reducing the number of operations using manual work.
Delivered technical result is achieved by the device comprising a platform, drive grinding wheel, holder for fixing the workpiece, reinforced with the possibility of committing a complex movement by the copier is provided with additional toolholders, reinforced with continuous planetary motion about a common axis, and complex movements in a particular area holder movement path perpetrated by reacting interchangeable cams having a different profile, with fixed stop thus, abrasive wheel periphery has a profile corresponding to the profile shape cabochon top and the platform is movable in a plane perpendicular to the end face of the abrasive wheel.
The additional amount of processing enables the holders on one machine while several kinds of products (products with bases of different shapes - ellipse, circle, etc.). This is achieved by installing various holder interchangeable cams with different profiles (for example, when the number of holders 4 can be treated with 4 types of products). The use of interchangeable cams allows, if necessary, go to the production of one product (eg, all the toolholder installed copiers for the base form of an ellipse), but also to be able to vary the percentage of products (for example, if you install four of the holder, it can be done: two products with the form of the base - the ellipse and one on the base form - oval and round).
Increased performance is achieved by introducing additional holders (4 or more, depending on the diamond wheel diameter). Reinforced holder device so that they all have a common axis around which rotate continuously. This leads to the fact that the process is continuous processing (the processing of the stone holders on one on another at the same time removes the finished product and installing the workpiece). The result is a combination of the main and auxiliary processing time for products. This leads to increased productivity.
To reduce the number of movements and simplify the forming structure used grinding wheel (tool) with a periphery designed according to the shape of the product peaks. This would eliminate the use of the mechanism to track forms the top and do not introduce additional form-building movements.
To adjust the height of the cabochon platform, on which the holder is configured to move in a plane perpendicular to the end face of the abrasive wheel.
Since all of the holder rotates continuously from the electric motor and the cabochon is read from the top of the circle, the human action is reduced to the installation preparation and removal of the finished product.
The invention is illustrated by drawings, where:
 1 - shows a diagram of a device position |
 Figure 2 - shows a kinematic diagram of the device |
 3 - A view of 2 | |
In general the rotor shaft 1 mounted rack 2 on which the gear shaft 3. On the pinion shaft 3 mounted bracket 4 with the ability to perform a rocking motion relative to the pinion shaft 3. In bracket 4 mounted holder 5 on which are mounted flat copier 6 and 7. gear 5 is mounted workpiece holder 8. to set the oscillating movement on the stand 2 mounted bracket 9 (Figure 3) on which is fixed a spring 10 (FIG. 3). The spring 10 and fixed to the holder 5. The entire device is mounted on a rack 11. Rack 11 and stop 12 are mounted and fixed gear 13. Rack 11 is mounted on a platform 14 which is mounted on the platform 15 (base device). On the platform 15, an electric motor 16, the shaft of which is fixed abrasive wheel 17 to the periphery, profiled under the required product. To specify the movement of the workpiece 8 on the rotor shaft 1 is mounted an electric motor 18.
The device operates as follows:
The blank holder 5 is secured 8. When the motor 16 is driven to rotate grinding wheel 17, and when motor 18 is driven to rotate the rotor shaft 1 together with the rotor shaft 1 starts rotating rack 2 and thus moves along shaft-gear wheel 13 gear 3 and the torque transmitted to the gear wheel 7, which rotates the holder 5, 6 and copier flat blank 8. in a particular copier flat path portion 6 begins to interact with a fixed stop 12 so that the spring 10 begins to stretch and return to its original aiming state, the flat cam 6 presses against the fixed anvil 12. at their interaction occurs task required movements are transmitted holder 5 as a result of which the gear wheel 7 can move along the pitch circle of the parasitic pinion shaft 3. Alignment displacement gear 7 with respect to shaft -shesterni 3 and 5 rotation holder provides job generating line items (ellipse, circle, etc.), read the guide to the abrasive wheel 17.
In order to ensure the workpiece and removal of the finished product of the rotor axis of the shaft 1 is offset relative to the motor shaft 16.
The focus 12 is mounted such that the trajectory task takes place only in the specific area (a processing band), rest on the path trajectory is maintained constant (flat cam 12 and the abutment 6 do not interact).
For the product platform 14, the height adjustment is movable in a plane perpendicular to the end of the circle.
At several positions set device (4 or more), while on the holder 5 in different positions of the flat cam 6 can be varied. This makes it possible to produce simultaneously on a single machine with various treatment products base shape (circle, oval, ellipse, etc.), but the same height (due to round the periphery of the tool). Running flat copier 6 replaceable and allows a switch to the production of products with a base form and in the form of varying the percentage of products manufactured on the machine.
Increasing the number of positions, continuous rotation around their common axis leads to a continuous processing process (the processing of stone on one position to another at the same time removes the finished product and installing the workpiece). The result is a combination of normal time (time for processing the product) and the auxiliary time (installation, fastening, transportation to the processing area). This leads to increased productivity.
Using a grinding wheel (tool) with a periphery designed according to the shape of top product, resulted in a decrease in the amount of shaping movements.
The use of a special abrasive wheel, and as a result of the fact that transportation of the workpiece, its machining is carried out by means of electric motors, human action is reduced to the installation and removal of the finished preform article.
Additional quality and device can include the fact that, unlike the device of U.S. Patent 3420005 failure of one of the entries will only lead to a reduction of productivity, and not to stop the machine.
CLAIM
An apparatus for processing cabochons from semiprecious stones, comprising a drive grinding wheel, platform mounted thereon tool holder for fastening the workpiece associated with the cam serving to communicate holder complex motion, characterized in that it is equipped with a fixed focus and additional toolholders and cams, the latter are made interchangeable with different profiles and mounted on the tool holder having the possibility of continuous planetary motion about the common axis and periodic interaction with the fixed stop, wherein the complex movement communicated to the toolholder at a certain portion of their trajectory the abrasive wheel periphery has a profile that matches the profile of top cushion, and the platform is movable in a plane perpendicular to the end face of the abrasive wheel.
print version
Publication date 03.01.2007gg
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