DE1219420B - Parallel vice - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. α .:

Number:
File number:
Registration date:
Display day:

B 25b

German class: 87a-5

1219420
P26658Ic / 87a
February 25, 1961
June 16, 1966

The subject of the main patent is a parallel vice with two fixed abutment surfaces sliding block guided under in the clamping direction, which is also guided in the clamping direction, at its front end with the movable clamping jaw firmly connected or one with her The unit forming the clamping slide is longitudinally displaceable to a limited extent is arranged and to generate the movable jaw vertically downwards pressing force component under the action of the feed force with a against the base plate of the Vice inclined flat face against a corresponding in the front part of the clamping slide obliquely arranged flat pressure surface is pressed, this inclined pressure surface of the displaceable clamping slide by an axially parallel surface of a in the front part of the clamping slide rotatably mounted pressure body is formed, whose axis of rotation is parallel to the base plate and perpendicular to the direction of tension. This basic idea is implemented constructively there in the Way that the rotatably mounted pressure body is designed as a pressure bolt.

An essential part of the parallel vice according to the main patent is an known hood, which at the same time represents the displaceable clamping jaw or carries it and which the Feed block covered. Here, the said pressure bolt is with both of its ends in the two vertical cheeks of the hood supported. In a further embodiment, namely according to claim 3 of the main patent, is the middle part of the pressure pin with the cylindrical part of its surface in a correspondingly rounded transverse recess of the front part of the clamping slide forming pressure block supported.

The invention creates an advantageous modification of this construction, namely the parallel vice according to the invention characterized in that two circular segment-shaped as the pressure body Discs are used with their curved surfaces representing parts of a cylinder jacket in corresponding recesses of the front clamping slide part rest, while their flat section surfaces serve as a pressure surface, which is inclined with the flat mating surface of the feed block cooperates.

In the meantime - after the filing date of the main patent - it has become known as a pressure-transmitting device Body to store a spherical section in a spherically rounded recess that is in the front part of the clamping slide is provided where-parallel vice

Addendum to the patent: 1127 825

Applicant:
ίο Rolf Palfner,

Stuttgart-Zuffenhausen, Schwieberdinger.Str. 35

Named as inventor:
Adolf Prewo f,

Stuttgart-Zuffenhausen

in the case of the flat section surface of the pressure body serves as a pressure surface that extends in all directions can adjust the position of the inclined mating surface of the feed block. However, this solution is disadvantageous in comparison to the pressure pin rotatable about a transverse axis according to the main patent as well to the disks according to the invention, which can likewise only be rotated about a transverse axis. An adjustment Simply rotating around a transverse axis is sufficient. The possibility of pivoting the printing surface in the transverse direction is not necessary, so that there is an unnecessary effort indicates that the bearing surface should be designed as a spherical surface. The simplest solution is to use Circular segment-shaped disks. For these disks it should also be emphasized as an important advantage that they are used as so-called disc springs in various fields of technology and from this Basically in (e.g. by DIN 6888) standardized sizes available as series parts made of wedge steel at an inexpensive price stand. Also working out the cylindrically rounded recesses to accommodate such Slicing represents a simple operation that can be carried out with great accuracy. In the drawing, an embodiment of the invention is shown, namely shows

F i g. 1 shows the parallel vice partly in side view and partly in longitudinal section,

F i g. 2 is a top view of the vice and F i g. 3 shows a vertical cross section along line III-III in FIG. Iund2.

The illustrated embodiment agrees with respect to most of the elements with those of the

609 579/59

Claims (1)

1219 420 3 4 Main patent. It has a firm tension development insofar as it is based on Grunci der rücj? - jaw 1. This is placed on a base plate 2, wärtigen support the use of a complete which represents the sliding bed and the upper part of the digen pressure pin, namely the pin bearing Slide rails 3 for the hood-shaped clamping both ends in the side walls of the hood, has carriage 4. This hood 4 is also here as 5 makes superfluous when stored on both executed unitary block, its front (in bolt ends and also in a rear F i g. 1 and 2 right) end face the movable support along a larger distance in the middle Forms clamping jaw. As already mentioned, instead of Teü there can be a static overdetermination, the one of which a special clamping jaw is attached extremely precise and therefore expensive machining will. io is enough if really worn in all these places For pressing on the hood 4, which is to be closed here. The invention thus means a comparison that represents the displaceable clamping jaw, serves to simplify and make it cheaper. Here, a feed block 5, which is moved by a threaded spindle 6 arranged in the sliding bed 2 at the two pressure bolt ends, is moved. How tet. It is sufficient that the rotatable pressure element can be seen only in Fig. 3, the feed block 5 has to support a 15 of its central part, namely by means of a widened foot 7, which is located under the two cheeks of the rear shell. This could grip the sliding bed 2 and thereby be able to use a single bolt of the appropriate length to counteract the forces acting on it in the upward direction, i. E. with a bolt, to record its length approximately. The threaded spindle is not the same as the width of the feed block. However, it is not even necessary at its outer (left) end, it is rather stored and provided with a hand crank. That in just two slices. These are in the right end shown in Fig. 1 does not need any position from Fig. 2 and 3 apparent distance from each other tion on the sliding bed, because this spindle end is arranged in front. the absorption of the pressure, and a static over * There is no vpr on the front (right) clamping slide part, i.e. on the determination. the back of the sliding jaw is the completeness away. Let the slide the end of the hood, the two disks 8 11 are mentioned. This represents "essentially an embedded, which represents the essential element according to the flat plate that is between the sliding foundations represent. In these rails as a pressure body 3 is guided and in the lateral respect Serving disks 8 are, as shown in FIG. 1, 30 effects precise guidance. The job of this lets know to disks of the shape of a circular slide 11 consists in the hood 4 also on section, namely the height of this circle - its rear end is to be secured against lifting. -sections For manufacturing reasons smaller than the For this purpose, the feed block 5 is on his Radius of the circular arc. The thickness of this disc-posterior surface is provided with a groove in ben can be seen from Figs. Such disks 35 which the slide U engages. On the other hand it is are also called "disc springs"; rear end of the hood 4 with the help of screw edges, In the art, they are connected to the slide 11 for other purposes ben 12. This need to be are made of Keilstajil and are ben are standard through smooth holes in the hood 4 manufactured and therefore cheap individual parts put through and with their tip in threaded hole, 40 stanchions of the slide 11 screwed in. Since the - for mounting the two disks 8 is used in the slide 11 in the groove of the feed block 5 shown embodiment engages, it is through the overlapping edge of this Foot 9, which is secured against lifting by means of a groove at the front end of the hood and holds in turn Screws 10 is attached, namely this has the middle of the screw 12, the rear end of the Base 9 has two recesses in the form of a cylinder 45 hood 4 each, the hood 4 is thus at both ends section that has the same radius "as held down, so that tilting does not occur the disks, however, of a lesser height so that they can, In connection with this, the pulling down of the protruding part is necessary. The manufacture of this foot 9 as a particularly designed as a hood Fig. 1 and Z right dargestellnot indispensable, rather, the production can also th) end important because it allows a HochMppen to be made in a single piece, which prevents this movable jaw, but offers separate production in manufacturing technology. This idea is also in itself advantages already from the basic niche point of view, insofar as the main patent is thought to be. The only difference is the two recesses for the pivot bearing of 55 the construction of the rotatable thrust washer 8. Easier with the required precision body that can produce the pressure of the feed block 5. It can be seen that it takes and transfers to the movable clamping jaw , The flat surfaces of these disks 8 as a pressure Here is the advantage of the inventive surfaces of the inclined surface of the Vorsehubklotzes § modification to the main patent that face and that an exact adaptation to 60 the same result on simpler and cheaper the inclination of the latter a slight way is achieved, namely by the use of rotation of the discs is possible, in the same way serial and standardized so-called discs as in the pressure pin according to the main patent. feathers. As already emphasized at the beginning, the subject matter of the patent claim is:
of the main patent also an embodiment, at 65 the back of the pressure bolt in its middle part - parallel vice with a two fixed Waiting is supported. The invention also provides counter-abutment surfaces reaching under in the tensioning direction A continued feed block above such a parallel screw stack, which is also in a guided in the clamping direction, firmly connected at its front end to the movable clamping jaw or arranged with it a structural unit forming clamping slide to a limited extent longitudinally displaceable is and to generate one that presses the movable clamping jaw vertically downwards Force component under the action of the feed force with one against the base plate of the vice inclined flat face against a in the front part of the clamping slide correspondingly inclined flat pressure surface is pressed, this inclined pressure surface of the movable clamping slide by an axially parallel surface of one in the front part of the clamping slide rotatably mounted pressure body is formed, whose axis of rotation is parallel to the base plate and at right angles to the clamping direction, according to patent 1127 825, thereby characterized in that two circular-segment-shaped disks (8) are used as the pressure body, with their curved surfaces representing parts of a cylinder jacket in corresponding recesses of the front clamping slide part (9) rest, while their flat section surfaces as Serve pressure surface that interacts with the inclined flat counter surface of the feed block (5). Considered publications:
U.S. Patent No. 2,880,638. 1 sheet of drawings 609 579/59 6.66 © Bundesdruckerei Berlin