RU48865U1 - DEVICE FOR MANUFACTURING CAMS FOR PROCESSING CABONS - Google Patents

Abstract

The utility model relates to the field of mechanical engineering, in particular, to devices for making cams for specialized machines used for processing cabochons from soft non-metallic materials and semiprecious stones, for example, from amber. The utility model is aimed at facilitating the manufacture of cams used in the processing of cabochons, without the use of special equipment. A device is proposed comprising a base on which a spindle block with a spindle rotation drive, a block with a movable shaft, a thrust block is mounted. A disk is mounted on the spindle, a grinding wheel is mounted on the shaft of the thrust block, and a cabochon standard and a cam blank are fixed on the movable shaft with the possibility of interaction with the disk on the spindle and grinding wheel, respectively.

Description

The proposed utility model relates to mechanical engineering, in particular, to devices for making cams for specialized machines used for processing cabochons from soft non-metallic materials and semiprecious stones, for example, from amber.

The following methods of manufacturing cams are known: lapping according to tables; fine-tuning by templates; manufacture of a copy on milling or copy-milling machines with pantograph; chiselling; milling on machines with numerical control, etc., when the cam is made from a workpiece (Rumyantsev A.V. Technology for the manufacture of cams. M. Mechanical Engineering, 1969, 232s.).

However, to implement all of the above methods, you must know the shape of the cam in advance: you must have either a cam standard or a mathematical description of its profile. When processing cabochons on a special machine, it is often necessary to make cabochons of a non-standard shape, cams for which are absent, and there is only a standard for this cabochon. The relationship between the shape of the cabochon and the shape of the cam is complex and is determined by the many geometric parameters of the machine, so calculating the shape of the cam is problematic. Therefore, there is the task of making cams only guided by the known form of the cabochon, which is impossible using the above methods. In addition, for processing cams by known methods, it is necessary to have additional equipment, sometimes quite complex and expensive, for example, a milling machine, which unreasonably inflates the cost of manufacturing cams used to make cabochons.

A device for processing cabochons includes: a base; spindle block, on the spindle of which a shaped grinding wheel is attached; grinding wheel rotation drive; a block with a movable shaft, on one side of which a cabochon blank is attached, and on the other, a fist; thrust roller unit comprising

a roller of the required diameter (Automation of technological processes: Collection of scientific papers, Kaliningrad, KSTU, 2002, p. 89-90).

The disadvantage of this device is the inability to manufacture cams on it for processing cabochons, which requires additional equipment for the manufacture of cams and increases the cost of cabochon.

The utility model solves the problem of manufacturing cams for processing cabochons, by using a cabochon and a device for processing cabochon, without the use of special equipment.

To obtain the desired technical result, in a device containing a base on which a spindle block with a spindle rotation drive is mounted, a block with a movable shaft, a thrust block, it is proposed to install a disk on the spindle and install a grinding wheel with its own rotation drive on the shaft of the thrust block. At one end of the movable shaft, a cabochon reference is mounted with the possibility of interaction with the disk on the spindle, and at the other end, a cam blank with the possibility of interaction with the grinding wheel.

The accompanying description of the drawing shows the proposed device for the manufacture of cams. In the drawing, the following notation:

1 - base; 2 - spindle block; 3 - spindle; 4 - disk; 5 - block of the movable shaft; 6 - movable shaft; 7 - thrust block; 8 - grinding wheel; 9 - a drive of rotation of a grinding wheel; 10 - cabochon reference; 11 - cam blank; 12 - a handle for clamping the cabochon standard to the disk.

The device operates as follows: the grinding wheel 8 is rotated by the drive of the grinding wheel 9. When the movable shaft 6 is rotated about its axis and pressed using the handle 12 of the cabochon reference 10 to the disk 4, the cabochon reference 10 is rolled around relative to the disk 4. Moreover, the workpiece cam 11, located on the opposite side of the movable shaft 6, begins to move relative to the grinding wheel 8, which forms the desired profile on the cam blank 11.

Claims (1)

A device for manufacturing cams for processing cabochons, including a base on which a spindle unit with a spindle rotation drive is mounted, a grinding wheel, a block with a movable shaft and a thrust block, characterized in that the grinding wheel is mounted on the shaft of the thrust block and has a separate rotation drive , a disk is mounted on the shaft of the spindle block, and a cabochon standard and a cam blank are fixed on the movable shaft with the possibility of interaction with the disk on the spindle and grinding wheel, respectively.