DD269342A1 - METHOD AND BELTING FOR LAYING UP THE LOADING OF EXTENDABLE COMPONENTS - Google Patents

Abstract

Method and clamping jaws for precise clamping of newly attachable components. The component receives form elements, which act together with appropriately shaped jaws transversely to the clamping direction positioning. This is followed by his Befoerderung between at least two of these jaws and aligning them. Finally, at least one of them is moved on a fixed path in the direction of component until the positive and frictional connection. figure

Description

For this 1 page drawing

Field of application of the invention

The invention relates to a method and a clamping jaws for positionally accurate clamping just attachable components. Their main field of application is the flexible production technology, in particular the loading of workpiece carriers.

Characteristic of the known state of the art

Smaller prismatic components are usually clamped between plane-parallel jaws of a vise, which can also have a side stop. Acting the jaws still down, thus flat support of the component and fine positioning in the clamping direction and coarse positioning are ensured across the clamping direction, if not cause additional laterally acting means in this direction fine positioning.

Larger prismatic components are clamped between a plurality of parallel-sided clamping jaws acting on different sides, which are arranged fixedly or movably on clamping blocks. However, the fine positioning in three coordinates is at the expense of accessibility to the spanned component. In addition, the clamping reliability is no longer guaranteed if the clamping takes place on workpiece carriers, iie go through in a different position a manufacturing system.

For this and reasons of geometric diversity, components are positioned on the workpiece carrier and then clamped by means of clamping iron against the base surface, each differently shaped component requires new support and clamping elements. Extensive kits are the result.

In another method, the diversity of the components is achieved in that arranged in different levels determining, supporting and clamping elements are supplied numerically according to the goometry of each component (VDI magazine, Dusseldorf 122 (1980) 15/16, p 682) , This requires additional NC axes and again reduces the accessibility to the tensioned component. In addition, the method is tied to the machine tool.

Object of the invention

The aim of the invention is a universally ehsetzbares and without the use of NC axes automated clamping process, which ensures a high clamping reliability and good accessibility to the tensioned component.

Presentation of the essence of the invention

The invention has for its object to provide a method for positionally accurate clamping just attachable components, in which the positioning and clamping is done by a minimum of different movements substantially independent of the component geometry

 Experience? According to this problem is solved by the following steps:

- The incorporation or attachment of mold elements in or on the component, which act together with appropriately shaped clamping jaws at least transversely to the clamping direction positioning;

- The feeding and placement of the component between at least two of these jaws;

- The coarse alignment of the component such that its shape elements show approximately in the clamping direction;

- Moving at least one of these clamping jaws on a fixed path in the direction of the component up to the form and frictional connection.

By inserting or attaching the transverse to the clamping direction positioning mold elements reduces the number of

to be used clamping devices, which in turn follows better accessibility to the tensioned component. The simultaneous

Force and positive engagement increases the clamping safety. The mainly resulting from dam process independence from the Component geometry and immutability of movement when positioning and clamping ensure automation

without using NC axes and use both on the machine and on the workpiece carrier.

The mold elements are expediently introduced in the processing of the base as tension pockets, whereby

An additional clamping is eliminated.

With an insertion or removal of the form elements in predetermined pitches can be by the method

anyway reduced number ofWerkstOckträgerJe further reduce production system. The workpiece carrier then has e.g. only still in the grid spacing pairs of clamping jaws.

Automatic handling devices guide the component and simultaneously align it roughly. By doing so in a form-fitting manner to the Attacking mold elements, these serve not only the Positionleren and clamping, sondorn also the handling of the component. It goes without saying that the spacing grid also has an advantageous effect in this case. Is the component before the form and adhesion with the jaws by means of positioning jaws in the clamping direction

pre-positioned, low-tension clamping is possible with lower energy consumption.

Precise pre-positioning of components tolerated in the clamping direction is possible if the positioning jaws on Attack positioning, which in the first clamping with a defined dimensional reference to the form elements on the component

be attached.

The jaws according to the invention for positionally accurate tensioner just attachable components has on the component

facing side at least one mold element that corresponds with corresponding form elements on or in the component and this positioned at least transversely to the clamping direction.

The molding element tapers at least in the tensioning direction. It is preferably as a curved in the clamping direction Disk section formed, the upper deck surface is parallel to the plane of action and the lower deck surface of the Base surface of a tapered in the direction of the placement plane Kegelstumpfcbachnittes forms. That brings advantages

with regard to the distribution of the force components in the clamping direction and in the direction of the placement plane and in terms of

Positive locking behavior and height minimization. In addition, the area associated with the upper deck surface of the Clamping pocket of the component as a supporting surface for handling devices. embodiment The invention will be explained in more detail below with reference to an embodiment. The accompanying drawing shows a

a workpiece carrier between the clamping jaws coarse aligned component.

Each jaw 1 has a curved in the clamping direction disc portion 2, the upper deck surface 3 parallel to Inset level of the component 4 extends and the lower deck surface 5, the base of a direction in the direction of the insensit level

tapered truncated cone portion 6 forms.

If the base of the component 4 is processed, the introduction of two takes place in the same setting by means of form milling cutter

separated by a grid spacing and matched to the shape of the jaws 1 clamping pockets 7 in opposite directions

Component pages. In the tension pockets 7 then engages an automatic handle device to the component 4 so

between the arranged on the workpiece carrier 8 clamping jaws 1 to convey that these along a straight line in the

Retracting pockets 7 can retract. Before the automatically retracting and tapering both in the clamping direction and in the direction of Aufzetzebene Jaws 1 determine the component 4 transversely to the clamping direction and brace against the workpiece carrier, it is by means Positioning jaws 9 determined in the clamping direction. The down-pulling effect of the jaws comes only in the Clamping moment to validity, so that obstructions of the determination process are connected in the clamping direction.

Claims (10)

1. A method for the positionally accurate clamping of just attachable components, characterized by the introduction or attachment of mold elements (7) in or on the component (4), which act together with appropriately shaped clamping jaws (1) at least transversely to the clamping direction positioning; the feeding and placing of the component (4) between at least two of these clamping jaws (1); the coarse alignment of the component (4) such that the mold elements (7) show approximately in the clamping direction; on the stationary way in the direction of component (4) to the positive and non-positive movement moving at least one of these clamping jaws (1). 2. The method according to Ansp / uch 1, characterized in that the mold elements (7) are introduced during the processing of the base surface of the component (4) cirsten clamping as tension pockets. 3. The method according to claim 1 or 2, characterized in that the mold elements (7) <n predetermined pitches grid or attached. 4. The method according to any one of claims 1 to 3, characterized in that the feeding and coarse alignment by means of automatic handling devices takes place simultaneously. 5. The method according to claim 4, characterized in that the handling devices form fit to the mold elements (7) of the component (4) attack. 6. The method according to any one of claims 1 to 5, characterized in that the component (4) is pre-positioned before the form and adhesion with the clamping jaws (1) by means of positioning jaws (9) in the clamping direction. 7. The method according to claim 6, characterized in that the positioning jaws (9) engage positioning surfaces, which are mounted in the first clamping with a defined dimensional reference to the mold elements (7) on the component (4). 8. Clamping jaws for positionally accurate clamping just attachable components, characterized in that it has on the component (4) side facing at least one mold element which corresponds with corresponding form elements in the component and this positioned at least transversely to the clamping direction. 9. Clamping jaws according to claim 8, characterized in that the formula emery tapers at least in the clamping direction. 10. Clamping jaws according to claim 8 or 9, characterized in that the shaped element is formed as a curved in the clamping direction disc portion (2), the upper deck surface (3) parallel to the plane of action and the lower deck surface (5), the Grundlfäche one in the direction forms on the plane of action tapered truncated cone section (6).