DE1627390C - Automatic thread cutting machine for nuts or similar mass molded parts - Google Patents

Description

In this case, the washers 13 are set in a rotating movement by the nuts 6 , which almost excludes undesirable friction, which in a previously known rigid entrainment makes it difficult for the nuts to be pushed over and thrown off. The drill is also correctly guided both radially and axially.

The specific load and friction between the nut core hole and the drill shank is also caused by the larger the number of nuts on the shaft is lower.

The installation and removal of the drill is particularly quick and easy by opening the panes 13th

1 sheet of drawings

Claims (16)

1 2 Bulging of the end of the drill by encompassing the claims: 'Nuts located on the end of the drill and for throwing off the nuts on the groove free from the groove guide 1. Automatic thread cutting machine for nuts or drill bits are adapted, the drill bit change is special Mass molded parts are easy to design with in a circumferential direction. the overflow tap mounted on the bushing This task is achieved in that the and with a circular and symmetrical bushing to the threaded bushing at the rear end bent over from the thread tapping drill axis, the end part facing a flange or the like surrounded by two rotatably mounted disks, on which the disks are diametrically opposite, the end faces of which are at an acute angle - io supporting bearing blocks are articulated, and form a facility that opens to the cut part of the counter to the adjustable locking of the bearing blocks on the tap, and which are provided with an annular sleeve flange,
Openings for gripping the on the back. Ren. Drill end located nuts provided that as adjusting and locking devices per are, characterized in that the 15 bearing block is a screw drive on the liner flange circumferential bushing (1) on which the thread is articulated A further advantageous embodiment consists of an end part facing the drill bend (14) Flange (2) od. Ä. Has, on which diametrically in that the disks on the bearing blocks out opposite the bearing blocks carrying the discs (13) are exchangeably mounted. (4) are articulated, and devices for the 20 Finally, another advantageous feature can be shown Locking of the bearing blocks (4) on characterized in that the discs are the Wälzla bushing flange (2) are provided. have engaging bearing plates and from these 2. Automatic thread cutting machine according to claim 1, sen preferably molded pin centrally abstred characterized in that as adjustment and ben, the locking devices per bearing block (4) engage a 125 in corresponding holes in the bearing blocks and are secured by means of screws.
Screw drive (5, 6) on the bushing flange (2). 3. Automatic thread cutting machine according to one or NEN genus enables a particularly easy elimination of the preceding claims, characterized in that the overflow tap is changeable in that the washers (13) on the 30 at the same time good nut removal.
Bearing blocks (4) are held interchangeably. In the drawing is an embodiment of the 4. Automatic thread cutting machine according to one or the invention and is described in more detail below in several of the preceding claims. because _r . .described. It shows characterized in that the disks (13) the "■ Fig. 1 a part of an automatic thread cutting machine, roller bearings (11, 12) receiving bearing plate (7) 35 seen according to the line AB of Fig. 2,
have and of these preferably shown- Fig. 2 the same in the front view, partially Strut shaped pins (9) centrically, which are broken open in. Speaking holes (8) in the bearing blocks (4) Here is one that can be rotated engage and secured by means of screws (10) sleeve 1 is connected to a flange 2, to which are. 40 diametrically opposite by means of bolts 3 two Winkelelför mige bearing blocks 4 are articulated. For adjustable . ■ ■ ".. '. ·.:.: I.'. / X '. The bearing blocks4 are also locked on the flange2 Screws 5 hinged with nuts 6 The bearing blocks 4 each carry a bearing plate 7, which is an-45 formed, in .ein a hole of the bearing block 4 engages The present invention relates to a thread end tenon 9 and an automatic cutting machine in the tenon 9 for nuts or similar ground fende has screw 10 on the bearing plates 7 are molded parts with bearing in a rotating sleeve by means of axial and radial roller bearings 11 and 12 each system overflow taps and mounted with circular and a circular disc 13, whose each other 50 "facing sides bent symmetrically to the tap axis at an acute angle including the rear End, that of two rotatably mounted ß. Disks is surrounded, the end faces of which have a pointed between the disks 13 engages a substantially zen form an angle to one another, which turns into a circular ring-shaped bend 14 in the cutting part of the tap opens, and the ring-shaped with sleeve 1 via the nuts 15 radially mounted openings for gripping "on the on 55 thread drill 16. In the silk facing each other The nuts located at the rear end of the drill bits of the washers 13 are the thread drill bits are, supply 14 with respect to annular grooves 17 are provided, whose Such automatic thread cutting machines have already been profiled to match the circumference of the nuts 15
became known, but with these known ones, one obtains a thread Devices for changing the drill other than automatic cutting machines, in which the nuts 15 in neatly cumbersome and leads to long downtimes - short intervals over the first part of the drilling downtime. You therefore have no rers 16 in practice that there are several Entrance found. Nuts 15 are located on the cutting part of the drill The present invention is therefore the task of the nuts then to the base of the drill, in devices of the known type, the 65 shaft through the sleeve 1 on the annular Abzun towards one another to achieve a quick, easy bend 14, the nuts 15 through run of the nuts, to absorb the axial pressure, the inclination of the discs 13 in the disc end Run in the drill in the center of the axis, to prevent a rinsing groove 37 and thereby lean against it.