SU511130A1 - Spiral cutting machine - Google Patents

Description

(54) DEVICE FOR MEASURED CUTTING SPIRALS

one

The invention relates to a mseansandia of the GPs of processing spirals.

A device for measuring spiral cutting is known, containing tdodachi and cutting mechanisms, a measuring gear with a tooth tfofile corresponding to a sp-fabric profile, equipped with a cutting tool.

The described device makes it possible to improve the cutting accuracy by continuously adjusting the helix for measured lengths with control over the number of turns.

For this, the device is rigidly synchronized with a measuring gear, synchronizing a disk with a groove, and also installed on a driven faceplate, mounted with a possibility of rotation at a given angle and a carrier fixed perpendicular to its plane, a pin interacting with a synchronizing disk,

On fy1 1 shows the proposed device, whether the view is common; in fig. 2, 3 and 4, the interaction of the elements of the device in three positions.

On the drive shaft 1 there is a dimensional gear 2, rigidly connected with synx2

with a disc 3, which has a semicircular groove on the cylindrical surface. Measuring gear 2 has a certain number of teeth, multiple to the number of turns of the cut helix. The tooth has an inclination whose angle is equal to the elevation angle into the helix NINCI of the helix, which allows the turns of the helix to freely enter the cavities of the teeth of the measuring gear. Instead of one of the teeth, the cutting tool is built in;

Claims (1)

On and in the water. The shaft 5 has a tritzh. faceplate 6, which can freely rotate from the shaft 5 at an angle, limited to the Daughter's p-list of the groove, performed by the new in the hub of the slot 6. 6. Axial movement of the faceplate 6 along the BaJTy B page & t pin 7, which is rigidly connected to the shaft 5, the pin 8, which is rigidly fixed on the hub of the plate 6, is connected to the pin 7 by a spring of tension; e- 9, which is adjusted so as to keep the 6 DT plate of the spontaneous rotation relative to the shaft 5. On pinplate 6 is pin 10, sanding p When the tool is full, the combination of the knife 4 and the matrix 11 occurs with the semicircular groove of the synchronizing disk 3. The shafts 1 and 5 are interconnected by interchangeable gears 12 and 13, which define the meeting (matching) period the cutting tool-knife 4 and the matrix 11 The device operates as follows: Shaft 1, having received rotation from a drive (not shown), transmits it by means of interchangeable gears 12 and 13 onto shaft 5, while the interchangeable gears are selected so that the entire alignment cycle tools 4 and 11 (t. e. cutting spiral) tpoizoshel for one revolution of the shaft 5; during this time, shaft 1 must make ft revolutions (where P is an integer). At the completion of a complete rotation of the shaft 5, the trunnion 1O of the faceplate 6 reaches the cylindrical surface of the synchronizing disk 3, slides along, stopping the rotation of the faceplate 6 relative to the shaft 5, which continues to rotate along with the pin 7 fixed on it. The latter slides along the groove of the faceplate 6 , stretching the spring 9, fixed at one end on the plate 6 by the pin 8 (see FIG. 2). At this point, the synchro disc 3 and the measuring gear 2, rigidly mounted on the shaft 1, complete their / yr turn; The semicircular groove of the disk 3 meets with the pin 1O of the plate 6. In this position, the synchronizing disk 3 plays the role of the carrier and the pin on the faceplate 6 of the driven link, which rotates relative to the shaft 5 (with an angular velocity with it) with the joint of the pin of the second the groove of the disc 3. The middle position of the engagement (see Fig. 3) corresponds to the exact alignment of the struts 4 and 11 — the helix is cut. At the end of the joint engagement, the capt 10 leaves the semicircular groove of the disk 3, the faceplate 6 under the action of the spring 9 makes an accelerated rotation with respect to the shaft 1 until the rear wall of the transverse groove of the hub of the bearing 6 in the shaft 7 begins a new cycle of counting the rali turns and subsequent cutting (see Fig , 4) The design of the proposed device ensures alignment of the linear spacings of the elements of the device, equipped with a cutting tool, at the time of cutting the helix. Measuring gear 2 and pad 6 have different angular velocities, and the points belonging to their cylindrical surfaces: - distinguish between different velocities. The spiral, driven by the teeth of the dimensional gear, has a linear speed equal to the linear speed of the teeth of the dimensional gear. Due to the engagement of the synchronizing disk 3 with the slider 6, temporary cutting of the linear cutting speeds is accomplished. tools 4 and 11 located on these elements of the device, thereby achieving an exact alignment of the tool on the spiral turn alone without slipping and, therefore, without seeing the adjacent turns. Thus, this device allows high-precision control over the number of turns of the cut helix. The number of turns of the cut helix can be selected in accordance with the ratio W - y –z7 m. where P is the number of turns; 2. - The number of teeth of the leading replacement gear | Zp - the number of teeth of the driven replacement gear; 2 - the number of teeth of the gear. Claims An apparatus for measuring cutting of a spiral, comprising a feed mechanism and a cutting mechanism consisting of a drive and driven shaft mounted on the drive shaft of the metering gear with a tooth profile corresponding to the profile of the helix being produced, and a cutting element differing in that In order to improve the cutting accuracy with a continuous flow of the helix with a control over the number of turns, it is equipped with a synchronizing disk with a groove rigidly connected to the measuring bristle, as well as a usleowlettsttllelem m. a faceplate mounted with the crank's capability at a predetermined angle and carrying a pin fixed perpendicular to its plane, and acting with a synchronous HpyTomEV- disk a 3 FIG. 2 FIG.