SU1000190A2 - Gear slotting head for working toothed parts - Google Patents

Description

(54) DENTAL HEAD FOR CONTOURING SCREW DETAILS

This invention relates to metalworking and can be used for machining gear wheels using a circular planing method.

According to the main auth. 9 848206 a known head, in the radial grooves of the casing of which profiling cutters are located for processing the tooth profile.

On the tail of the incisors, there is an oblique groove and ledge, interacting with the feed cone and retraction cone, which provides a radial feed of the incisors to the profile to be processed and a reverse rebound flj.

A disadvantage of the known device is the impossibility of combining the operation of tooth profiling and deburring at the apex of the tooth, arising during the planing process, without disturbing the location of the incisors in the head and reducing J3 connection with this processing performance.

 The purpose of the invention is to step up the productivity of the machining process by combining the operation of profiling and deburring (chamfers) at the aero tooth.

This goal is achieved in that the head is provided with a chamfer cut; mounted in the radial slots of the body in the same plane with the profiling cutters, and the mechanism of their radial movement, which is a holder with a groove angled to the axis of rotation of the head, placed in the additionally made holes of the body one end of the thread and attached to the feed cone with the ability to rotate the sleeve with the inner

15, with the rods arranged parallel to the axis of the feed cone, with the possibility of axial movement and interaction of one side through a threaded connection with the sleeves, and the other side with the groove of the holder.

Figure 1 presents the head, a general view; figure 2 - the angular location, profiling and chamfering; on fig.Z - section aa on fig, 2

25

The device comprises a housing 1, in the radial grooves 2 of which the cutters 3 are located for processing the profile and in the radial grooves 4 there are faceted cutters 5. The cutters 3 on the shank

Claims (1)

The 30 parts of the holder 6 have a step 7, which interacts with the feed cone 8 and the outlet cone 9. The holder 10 of the chamfering incisors 5 is provided with an inclined groove 11, which includes a pin 12, mounted on the odysm end of the rod 1 which is located in the cylindrical bore 14 of the housing 1 parallel to the choker of the feed cone 8. At the other end of the rod 13 there is a thread 15 cooperating with a threaded hole {sleeve of sleeve 16. A sleeve 16 contrits on the rod 13 with a nut 17, and a cylindrical hole 18 is installed on a pin 19 pressed into the flange 20 of the feed cone 8. On the sleeve 16 there is a flange .21, with which the two half-rings 22 and 23 are fastened to the flange 20 of the feed cone B, while the sleeve 16 is rotatably mounted at the end 24 of the finger 19. The rod 13 keeps the key 25 from rotating mounted on the housing 1 and entering into the longitudinal groove 26 of the rod 13, allowing it to perform axial movement. The feed cone 8 through the flag 20 is fastened with bolts 27 to the machine spindle 28, and the housing through the flange 29 and the attachment 30 with bolts 31 to the frame 32 of the machine. The device works as follows. The cutters 3 for processing the profile set into the radial grooves 2 to the plug 1 and operate with their tail part of the holder 6 on the feed cone-8, resulting in a radial feed from the axial movement of the feed cone 8. The angular position and number of the cutters 3 is determined from the best conditions and the possibility of placing them in the housing 1 with the support end of the holder 6 on the feed cone. In the radial grooves 4, the housings 1 are located in the same plane with the incisors 3 chamfering incisors 5, which are made to the king of incisors 3. At the same time, the chamfering incisors 5 are not supported by the end of the holder 10 on the feed cone 8, which contributes to maintaining the number of incisors 3 for processing the tooth profile of the part. The radial feed of the chamfering cutters 5 is carried out from the cone B through the rod 13 by the pin 12, which interacts with the walls of the inclined groove 11 in the holder 10. With the help of the sleeve 16, the rod 13 with the pin 12 is adjusted in the axial position so that the pin before the start of work is at the extreme the upper position of the inclined groove 11 and in the lowest position at the end of the work. The bevel cutters 5 are included in the cutting process (deburring) before completing the processing of the tooth profile with the main cutters 3, which is ensured accordingly. the drop over the profile of the cutters 3 and 5. The processing of the profile and the removal of burrs (chamfers) is curved at the same time. The use of the proposed head will increase productivity due to the simultaneous profiling of the tooth and with 1 burr from the tops. Claims of the gear shaping head for contour processing of gear parts according to ed. No. 848206, characterized in that, in order to increase productivity by combining core shaping and removing burrs at the apex of the tooth, it is equipped with bevel cutters, installed with the ability to move in the radial grooves of the body in one plane with the profiling cutters, and their mechanism radial movement, which is a holder with a groove angled to the axis of rotation of the head, placed in additionally made holes of the body of the rod, having threads at one end and attached to the end the feed bar can rotate the sleeve with internal thread, with the rods arranged parallel to the axis of the feed cone with the possibility of axial movement and interaction of one side through a threaded connection with the sleeve and the other with the holder groove. Sources of information taken into account in the examination 1. USSR author's certificate 848206, cl. In 23 F 21/04, 1979. // at /; ten . .З