DE1950111C - Tool for honing holes - Google Patents

Description

The invention relates to a tool to be used for honing, in place of the hitherto customary ones of bores with manually adjustable switching device that works without contact, e.g. About the stroke movement of the way with adjustable stops, without any single honing spindle is reversed, the control position can then be adjusted by the operator of the honing machine impulses derived from the workpiece bore are 3 put into operation. The tool controls the maggots, machine automatically exactly on the preset

By the German Auslegeschrift 1 264 988 is cheapest point around.

a device on honing machines for controlling the The invention brings particularly great advantages

Stroke movement of the honing spindle or the honing mechanism - its use on automatic honing machines, tool became known, in which the lowering of the total processing time is on the respective io

Bore diameter appealing control means can be felt especially when the diameter is the same

are seen that the spindle stroke on the area of the holes to be machined, the workpiece

limit of terminals. This can include as a result, change lengths frequently. According to the invention, in

take place that in the honing tool a pneumatic in this case no readjustment is required because Measuring device is arranged, which at Erigstellen the 15 the tool itself its most favorable stroke length

Drilling a reversal to run searches. The use of known contact

Causes short strokes. Such a pneumatic one-free electrical limit switch (also called contactless

direction is relatively sluggish in addressing, and it is designated limit switch) enables a special

not possible, a reversal point exactly, precise and safe reversal, because the device gain. Therefore, the well-known device works with »o works without contact and inertia,

the usual adjustable stops that have the Further advantages and features of the invention

The entire working length of the honing stroke can be found in the claims and the description in

Limit the spindle and reverse the stroke relationship with the drawings. A

cause direction at the end of the bore. Embodiment of the invention is in the drawing

The overflow of the tool over the end of the 35 opening is shown and is explained in more detail below.

The workpiece surface to be machined should be refined during honing. It shows

are adhered to as precisely as possible. A faulty F i g. 1 is a partially sectioned view of a honing

Adjustment can lead to inaccuracies in the measurement tool and

the durability of the machined workpieces, in particular. 2 shows a section along the line II-II in FIG. 1.

special to irregularities of the dimension over 30 The honing tool shown in the drawing

the workpiece length. Such errors are also found in the case of a tool body 11 with longitudinal slots

particularly difficult to determine during a follow-up check. 12, in which honing stone carriers 13 are performed. on

The overflow is normally a third of the honing stone carriers 13 are honing stones or honing

Working length of the honing tool (honing stone length) strips 14 attached, which are in contact with the workpiece

in both directions. As is the case with the above. The honing stone carrier 13 acts

mentioned the known device, the overflow became a double cone belonging to the expansion mechanism

manually when setting up the machine on a loading 15, which is supported by an expansion (not shown)

correct workpiece specified. This adjustment work rod is operated. The honing stone carriers 13 are

is relatively time-consuming, since the operator works with a lower and upper tube spring 16 to

piece and honing stone length first determine the overflow 40 held together.

and then had to adjust the machine. In the tool body 11 there is an axially

The object of the invention is to provide a possibility of a parallel longitudinal slot 17 which has a T-shape. In

to show, through which the manual adjustment of the longitudinal slot 17 are two appropriately designed

Stroke length can be avoided. formed limit switches 18, 19 arranged to be longitudinally displaceable

In order to solve this problem, 45 is arranged according to the invention. You can use set screws 20 in Application can be set in a tool of the aforementioned the longitudinal slot. The limit switches Art proposed that for each end of the bore are a low-inertia, contactless, electrical end responsive to the end of the bore, switch per se, whose sensors 21, 22 generate a field that, known low-inertia, electrical limit switch on the presence or absence of a work honing tool adjustable lengthways in the area of the upper 5 ° piece responds in their area. These fields and the lower third of the honing tool is arranged via connecting lines 23 a not is fed to the preset overflow length of the control unit shown, which is the stroke honing tool caused by the end of the length change to be processed. The lines 23 are in Workpiece surface an electrical signal for lifting the longitudinal slot 17 to a transverse bore 24 generated. 55 leads, with a longitudinal bore 25 in the tool

The operator doesn’t need to be physically connected and the lines open to take care of the stroke length adjustment, because it takes.

for every tool, regardless of the one to be machined. The honing tool shown in the drawings

barking workpiece length, a certain overflow works as follows: The limit switch 18 is on the

belongs, which is normally a third of the honing stone ⁶ ° lower and the limit switch 19 on the upper

length is. The tool therefore only needs to set the control point. The corresponding management

times to be set to its associated overflow length on the corresponding relays of the control unit

what is already done during its manufacture are created. On the downstroke, that changes from

can. When such a tool on a honing feeler 21 generated field when overflowing the lower

machine with hydraulic drive for the stroke 65 workpiece edge, i.e. the end of the

ciiiL'esi-i J, then only one electric needs the surface. This controls this as a result of this field change

Sii'nalluitiii! " from the honing tool on (yes, the control unit changes the stroke so that the honing tool

■ ία: connected for ilk- Hublüngenumstcueriing is now moving upwards. When the probe 22

of the limit switch 19 reaches the upper edge of the workpiece, then a reversal of the Tool stroke, in this case for downward movement,

If the stroke reversal of the honing machine is not idle, i.e. due to the moving masses and the type of lifting drive, the tool continues to run a little after the reversing signal until it is When the real turning point is reached, this characteristic of the machine can once again be seen on the Honing tool can be adjusted by adjusting the feeler elements accordingly and does not need to be to be taken into account again with every set-up on a specific workpiece.

Claims (2)

Patent claims: 1. Tool for honing bores with non-contact controls, above which reverses the stroke movement of the honing spindle, the control pulses from the WerkstUckbohruiig are derived, thereby characterized in that for each end of the bore a responsive to the bore end, well-known low-level, electrical Limit switches (18, 19) on the honing tool can be adjusted in the area of the upper and lower Third of the honing tool is arranged, which at the preset overflow length of the honing tool over the end of the to be machined Workpiece area generates an electrical signal for stroke reversal. .... 2. Tool according to claim 1, characterized in that the limit switches (18, 19) in a T-shaped Liingsnut (17) of the tool body (11) are arranged displaceably and lockable. 1 sheet of drawings