DD244097A1 - MANUFACTURING CELL FOR TURNING GEARS, ESPECIALLY HEADS - Google Patents

Abstract

The object of the invention is to design a manufacturing cell for the production of sprockets, which handles all machining processes with the same kinematics. The task is solved by a CNC-controlled drive system, through the construction elements of which it is possible to perform a complete machining of the workpiece in just one clamping and kinematics.

Description

embodiment

The invention will be explained in more detail using an exemplary embodiment. It shows Fig. 1 arrangement of the manufacturing cell with their stations.

The manufacturing cell is with the processing stations

- preparation of the uncured gear aes)

- Measuring the gearing, including the correction of setting values in gear production b)

- Deburring and removal of the tooth edges c)

- hardening of the teeth d)

- Gear teeth of the hardened gears) equipped.

In this case, the pre-processing of uncured gears is used in the processing station a), wherein geometrically simple cutter heads are taking advantage of the possibilities of microcomputer control used.

The measuring station b) is used to measure the teeth, z. B. with three-dimensional probes.

While in the processing station c) conventional tools are used, in station d) the hardening process, for. B.

by laser beam, applied. Finally, in the processing station e) the peeling rolling hitherto used in the art by means of a hob is replaced by the use of cutter heads 4. There is the possibility of the manufacturing cell in different stages, e.g. by eliminating the station d) and / or e) to realize.

An example could be the task to train them as follows:

Production cell for uncured gears

- Preprocessing of uncured gears a)

- measuring station b)

- deburring and demolding c) hardened gear manufacturing cell

- machining of hardened gears)

- Production processing, z. B. loops f)

- Measuring b)

The entire device is controlled by a central CNC system 15, which generates the rolling motion as a kinematic longitudinal movement 3 via the drive M 3 and as a rotary movement 2 via the drive M 2. For the production of the toothing is used exclusively with comb-like intermeshing cutter heads, which replace the previously used rolling tools.

In this case, the manufacturing cell is constructed from known machine components. On a workpiece carriage 14, a rotary table 13 is arranged, on which the workpiece to be machined is placed.

The Vorbearbeitungsstation a) is equipped with two TED cutter heads 4, which are arranged at a double pressure angle axes 1 with the involvement of the Breiteeinstellbewegung 5 and the Winkeleinstellbewegung 6 are set to the Referenzf5rofil the teeth.

By radial immersion of the positioning 7, the positioning of the tools is made relative to the workpiece.

To roll out both tooth flanks, the rotary rolling movements 2 and translational 3 are used. The retraction of the tool axes 1 with the cutter heads 4 via the positioning axis 7, which is adjusted axially by means of the longitudinal movement in Zahnbreitenrichtung. In this new position, the processing cycle is repeated and is repeated until completion of the entire tooth width. Subsequently, by means of a rotary rotational movement 2 of the workpiece, with the tool withdrawn along the positioning axis 7, further rotation of the workpiece takes place by one pitch. This process is repeated according to the number of teeth of the gear. A deviation that appears as a required correction is achieved by a changed angle setting 6 and by a possibly necessary infeed of the positioning axis 7, the cutter heads 4 being correspondingly positioned via the CNC control.

In the station c), which serves to Abdache and deburring of the tooth edges, the deburring tools 10 are adjusted by the Abstandseinstellbewegung 16 and the Winkeleinstellbewegung 9 on the teeth. The slope and the deburring done by a computer-aided assignment of the movement of the deburring tools 10 and the rotary

Rotary motion 2..

If it is technologically classified that should be measured after pre-teeth, the workpiece is placed in this position via a Meßtasterpositionierung 11. In this case, a probe along the axis acc.

Position 11 brought into the measuring position and applied via a rotational movement 2 to the edge to be measured and measured by means of the movements 2,3 and 8 web-controlled. This is repeated until the toothed workpiece has completed its rotation with 360 °. The evaluation of the measurement results of the CNC control 15 can be removed. Here, the hiring of the deburring tools 10 is performed by a translational movement 3 and 16.

For further processing of the workpiece for hardening the toothing, a form-fitting tool is set up in the station d) along the positioning axis of the hardening station d) relative to the workpiece. Upon completion of the hardening process along the positioning axis of the hardening tool 12, after rewinding, a new tooth is tackled until all teeth have been similarly machined.

Finally, finishing is carried out in station e). Here is analogous, as explained under station a) worked.

In this station, however, the cutter heads 4 work with the finishing blades arranged on their front side, while in the station a) the roughing cutters of the cutter heads are used.

Position 8 represents the positioning axis in the tooth direction.

Claims (2)

Invention claim: 1. manufacturing cell for toothing of gears, in particular spur gears, characterized in that arranged on a common workpiece carrier tool and measuring systems and technological systems with rack-shaped reference profile so that the guideway of the translational motion component (3) parallel to the tangent to the guideway of the rotary Movement component (2) is arranged so that in a known manner, the required for generating the rolling motion Zwanglauf on a CNC control (15) can 'generated and that the technological systems (processing and measuring stations) positioned with punctiform attacking tools and measuring means there become, where the guideway of the translatory movement component (3) occupies an angle not equal to zero degrees to the tangent to the guideway of the rotational movement component (2).   2. manufacturing cell for gear cutting of gears, in particular spur gears, according to claim 1, characterized in that by means of the rotational and translational movement components (2,3) both the rolling movement for rolling the tooth flanks on rack-shaped tools and the web control to ensure the Eingriffspunktförmiger work- and measuring instruments is ensured by pointwise positioning of the workpiece edge relative to the work or measuring instrument. For this 1 page drawing Field of application of the invention The invention relates to a manufacturing cell for gearing z. B. spur gears, in which several specific processing stations are combined to form a machine unit so that the processing sequence runs as a uniform technological process. Characteristic of known technical solutions Due to the previously prevailing manufacturing processes and the machine tools used for the complete machining of gears, a technological process consisting of several sequentially arranged operations is required. At the same time, each method represents an independent workstation at the same time. The linking of the workstations required by the process takes place through known solutions of the transport and production process organization. From the prior art, the following disadvantages can be derived: The workpiece must go through the different operations one by one, so that long production times with high expenses for auxiliary and ancillary processes, such as transport and storage, setting up the processing stations, re-clamping the workpieces with the disadvantageous Effects on machining accuracy and loss times due to different machine running times occur. In order to simplify these separate processing methods and to streamline them in a production line, it has been proposed in DE 3146630 to provide a similar basic structure with horizontal linking and to adapt the supply devices required for this basic structure. Although it is assumed that the arranged in the production line processing machines are arranged interchangeable, but it is disadvantageous that still the traditional methods and machines must be used, since each machine has its special kinematics and control and the workpiece transport from machine to Machine is made by means of carriages or other expensive means. Object of the invention The object of the invention is the development of a novel technological process characterized by a minimum number of operations and a short, highly automated production run of the workpieces while increasing labor productivity and workpiece quality as well as lowering the technological cost. Explanation of the essence of the invention The invention has for its object to develop a manufacturing cell, which allows a substantial complete processing of the teeth in a workpiece clamping. According to the invention, the object is achieved by a manufacturing cell for toothing of gears, in particular spur gears, in which the required tool and measuring systems are arranged on a common workpiece carrier so that the rotational and translational Wälzbewegungskomponente, with which in a known manner via a CNC control the Zwanglauf the rolling motion for the production of gears is generated, at the same time for the realization of a web control for punctiform attacking tools and measuring means is used. This is achieved in that the guideway for the translational Wälzbewegungskomponente the tangent to the guideway for the rotational Wälzbewegungskomponente intersects at a non-zero angle. Thus, the use of both CNC-controlled movement components for both the generation of the rolling motion and for a path control is required, the tangential coordinate to the pitch of the teeth in the polar coordinate and the radial coordinate to the pitch of the teeth in the Cartesian coordinate system is present.