DE2038489A1 - Automatic lathe - Google Patents

Description

WICKMAN MACHINE TOOL SALES LIMITED,

Banner Lane, Tile Hill, Coventry, Warwickshire, UK

Automatic lathe

The invention relates to multi-spindle automatic lathes. It is based on the task of improving the possibilities for changing the work spindle speeds, a simple and inexpensive construction should be chosen.

According to the invention this is achieved in that the multi-spindle, automatic lathe a spindle drum adjustable in a housing with several work spindles and several intermediate shafts and a drive shaft with gear connection, wherein the intermediate shaft and work spindles are optional for at least two Work spindle speeds provided in the same direction of rotation for any given speed of the drive shaft are, and that also an optional coupling for each work spindle for the drive connection of the drive shaft with the work spindle is provided to allow the latter to rotate at any of its different speeds cause.

109815/1300

• The working spindles in an even number is provided, an intermediate shaft then still being provided for each pair of working spindles. "

An embodiment of a multi-spindle automatic Lathe, which was carried out in the Weiöe "according to the invention, - ■ is illustrated below with reference to the drawings; show in it:. ■ ..:

Figure 1 is a schematic end view of the transmission part of the ' Spindle drive and,

Figure 2 shows a cross section of the lathe according to the line 2-2 of Figure 1. '

The lathe shown in the drawing has a spindle drum 12, which is arranged in a housing 11 and is adjustable therein. The spindle drum carries several, for example 6, work spindles 9, with a work piece clamping 13 at the end of each spindle 9 is provided.

Furthermore, a drive shaft 10 is provided, which can be driven in any desired manner and runs parallel to the work spindles 9, the latter being arranged at the same angle around the drive shaft 10. One can also see several intermediate shafts 4; in the embodiment described below, the work spindles are provided in an even number, with each pair of such spindles an intermediate? wave is assigned. At one end the drive shaft 10 j is the circulating with this shaft main drive gear 1 recognizable ■ "bar, which meshes with several other gears 2 engages, which are arranged in a corresponding manner to the work spindles 9 such that each gear wheel 2 in relation to the associated work spindle can run on the bearings m. Each | However, this gear wheel 2 is connected to one part of a friction clutch 5, the other part of which is connected to the associated working pin 9 in such a way that an engagement of the clutch 5 results in the gear wheel 2 rotating with the spindle 9 . . ■ 1 0 »# 1 8 / t 300 '

At one end of each intermediate shaft 4 there is another gear 3 which meshes with a gear 2 on each of the two work spindles 9, each intermediate shaft being mounted in bearings on the spindle drum so that it can rotate freely therein. The opposite end of each intermediate shaft is designed with a gear 7 which meshes with a gear 8 which is arranged on a work spindle 9 by means of the bearings 16. The two gears 3 and 7 of each intermediate shaft are then attached so that they rotate with the intermediate shaft. Further, each working spindle has a further friction coupling 6, of which one part is rotatably connected to the work spindle 9, and the other part connected to the gear 8 such ■ that an engagement of the clutch 6, a common rotation of the gear 8 and the work spindle 9 to the sequence Has.

The arrangement described above allows for each work spindle two optional speeds, these optional speeds having the same direction of rotation. For the optional engagement of either clutch 5 or clutch 6 will find suitable means on any work spindle desired or use a work locker at a desired location, see above that when the clutch 5 is engaged, the work spindle 9, as in Figure 2 is shown, the drive shaft 10 is the drive of the mentioned spindle via the gears 1 and 2 mediated. The associated intermediate shaft 4 is also over the gear 3 driven, but since the clutch 6 is disengaged, the gear 8 rotates with respect to the work spindle 9 on the other hand, the clutch 5 is disengaged and the clutch 6 is engaged, the work spindle 9 is driven by the drive shaft 10 via the gear 1, the gear 2 and from there mediated via the Zvjischenwellenzahnräder 3 and 7 and the gear 8, in which case the work spindle 9 then rotates at a speed which is the same as that when the clutch 5 is engaged and disengaged clutch 6 is different.

As described above, are for each work spindle optionally two gears provided; it is, however, readily understandable that, if necessary, more than two different

109815/1300

_ ν - 2Ü38489

Liehe gear may be provided, being executed each work spindle with a corresponding number of couplings _s which are arranged such that any one of the clutches is engaged. while ο ie others; Clutches are disengaged to share a certain working spindle speed, -icoita ir / .us. The use of an intermediate shaft in the manner described above forms a relatively simple and inexpensive construction in order to create different work spindle speeds cooperates., However, in another embodiment, the gear 1 can also cooperate with the ;: gear 8 in order to be able to make the drive shaft shorter.

109815/1300

Claims (4)

ΡΑΤ £ ί IT CLAIMS ί-ie.ir spindle automatic lathe, doAuTch characterized ₃ that it has a spindle barrel (12) adjustable in a housing (11) with several work spindles (9) and several intermediate shafts (4) and a drive shaft (10) with gear connection, the Intermediate ^{shafts C 1} J-) and ■ work spindles (9) for at least two optional work spindle speeds in the same direction of rotation for any given speed of the drive shaft (10), and that, furthermore, optional couplings for each work spindle (9) for the drive connection of the drive shaft ( 10) are provided with the working spindle (9) capable of causing the latter to rotate at any of its different speeds. 2. Multi-spindle! Ge automatic lathe according to claim 1, characterized in that an even number of work spindles (9) is provided. 3. Multi-spindle automatic lathe according to claim 2, o.aduvch characterized ^ that an intermediate shaft (M-) is provided for each pair of work spindles (9). 4. Multi-spindle automatic lathe according to the claims i to 3, characterized in ₃ that the clutches are friction clutches (5, 6). 109815/1 300 3ÄD ORIGINAL