JPS5925929A - Method of adjusting precise workpiece - Google Patents

Abstract

1. A process for adjusting leaf-spring like components, in particular contact springs which are clamped at one end, by deflecting the free end of the spring, by means of local heating operating on one side of the spring only, or by local softening, e.g. by laser beams (3), characterised in that for adjustment in either direction the spring end is loaded with forces (P) which have an effect in the appropriate direction.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for adjusting precision workpiece parts, especially contact springs that can be fixed on one side, by locally heating one side and displacing the free spring end.

In almost all electrical devices, contact springs are used whose contact force or contact distance complies with specified conditions. As the responsibilities of equipment become more complex, the requirements for maintaining specified conditions are increasing. In that case, for a constant contact splash, the contact force due to a constant displacement force or the contact distance within a constant time can be calculated in advance. However, the actual maintenance of the pre-calculated value is dependent on the non-adjustable monthly fee constant and only partially adjustable manufacturing tolerances.

Therefore, it is inevitable that certain 7Jr-9 conditions are satisfied through supplementary adjustment processing.

Generally, this adjustment process is carried out by bending or compressing the parts or by adjusting the adjustment elements (clamping devices, removable screw devices and wedge devices, screw fasteners with slotted holes) provided in the latch.

A method for self-jilt adjustment of a sheath covert device, especially a contact spring, without contact is disclosed in Patent Application No. 29J8 of the Federal Republic of Germany.
It is described and illustrated in the No. 100 publication. According to this method, a certain degree of warpage occurs in the portion where the adjustment can be safely performed by the laser beam without using any force during the heating and heating of the adjusted portion. However, adjustment in both directions is only possible by laser projection on both sides.

The object of the invention is to provide a solution to the method defined at the beginning, which is capable of 5 nJ corrections in both directions. The purpose of this is, for example, in combination with laser light, local heating of the full piece by the parent or local melting, so that for adjustment in both directions the spring ends are subjected to forces acting in the same direction. This is achieved by

An essential advantage of the invention is that, due to the mechanical construction, even relay parts that can be illuminated from only one side can be adjusted. A single adjustment method that can be adjusted in both directions is superior to one that only works in one direction because it does not require 100% adjustment of all parts.

The invention will be explained with reference to FIGS. 2 and 3 for an embodiment of adjusting the contact spring.

Not shown in the figure is a contact spring 4111 of which is fixed to the holding device 2, and is indicated by the symbol 1. Arrow 3 schematically indicates the direction of the laser beam on one side. Second
In the figure, a force P is acting on the free spring end. According to FIG. 3, the free spring end is pressed by the stop 4 (dashed line f), which shows the displacement of the spring solely due to the laser beam.

Until the laser beam is adjusted lf, it is always displaced only in the direction of the irradiated laser beam. If a further force (Fig. 21) is applied, the displacement is weakened or
The direction of deflection is reversed from a constant force. In that case, if a force like τJ is applied opposite to the action in the direction of the light beam, then
The displacement is strengthened. For example, a stopper (see Figure 3) or an already existing contact point is used as the additional force. However, the force can also be applied by force transmission devices such as pressure forces, spring scales, etc. Depending on the force and stroke indications, the laser power or ζ laser energy, the point of application of the laser, the magnitude of the additional force and the point of application of the angular force can be varied; Automation is possible with the above method.

Combinations of these selection points are also possible.

The B4 adjustment process can be carried out iteratively, for example, mostly by fumbling with the IN. The i11+1 adjustment process does not have to be the one measured by the part's adjustment value of 14.

Processed heating or melting regions, such as superimposed melting regions, intersecting the spring or along the spring edge Vc or bath melting in a curved arrangement of one mosaic: Depending on the shape, the spring can be deformed to various degrees.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram showing a conventional contact point J co, i1M set)N person, and Fig. 21 is an explanatory diagram showing a partial implementation of the present invention.
l, ;,, N1=S1 is Zeng, Ming1 is I% Figure 3 is another example of the present invention "2丙": -f 1is
f,'! 'I diagram. 1. Contact spring, 2. Holding device removed, ;)...Ray light 1'μ in one direction, 4. Stone, 5. Laser beam. t'

Claims (1)

[Claims] 1) A method for adjusting precision workpiece parts, especially contact springs that can be fixed on one side, by locally heating one III and displacing the free spring end. In combination with local unilateral heating or local melting, for example by a laser beam (3), the spring end f71 can be adjusted in both directions.
A method for adjusting precision workpiece parts in which four parts are subjected to a force (p) acting in the same direction. 2) The method according to claim @1, page 1f, characterized in that a contact force or a preload is used as an effective adjustment force. 3) The method according to claim 1 or 2, characterized in that force measurement and stroke measurement are performed in order to automate the process. 4) A method according to claim 1, characterized in that the measurement position and the adjustment position of the part are equal or different; A method according to claim 1, characterized in that the magnitude of the displacement is varied by selection.