JP2546641Y2 - Vise base - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vice for holding a work such as a metal to facilitate processing, and relates to a base of the vice capable of preventing the work from chattering (vibration) during the processing.

[0002]

2. Description of the Related Art Conventionally, in a vise, when a work is clamped, the entire surface on both sides thereof is not pressed evenly, that is, when a so-called "one-sided effect" occurs, the work at the time of processing is chattered and the work is performed. As it causes trouble, to prevent this,
A device has been devised to increase the parallel accuracy of the opposed bases.

[Problems to be solved by the invention]

However, both sides of the work to be clamped are not always parallel, and particularly when the work is a casting, the accuracy of the outer dimensions is low. There was a drawback that work chattering due to "one-sided effect" could not be prevented. Further, there is a drawback that a work that is originally not parallel to both sides sandwiched by the die, that is, a work having an irregular shape, cannot be processed while being held in principle.

[0004] The present invention solves such disadvantages of the conventional vise, and allows a work with low parallelism on both sides to be “one-sided”.
An object of the present invention is to provide a vice base that can hold a deformed work while performing processing while holding the work.

[0005]

In order to achieve the above object, a base of a vice according to the present invention is provided with a movable jaw on a sliding surface of a vice body having a fixed jaw so as to face the fixed jaw. The movable jaw is moved forward or backward on the slide surface in conjunction with the screw feed means, and the movable jaw or the fixed jaw is held in a vice that clamps a work between bases provided at respective ends of the fixed jaw and the movable jaw. A base body attached to the base body, and a base body attached to the base body. On a mounting surface of the base body and the base body, lateral protrusions that are fitted to each other are formed. At the tip, abutment projections are projected and the height of each ridge including the abutment projections is the same, and one abutment projection is abutted against the other non-projection, respectively. The pin by the base body that is inserted into an insertion hole drilled in the mated rib and articulated to the die substrate and is characterized in.

[0006] Further, a holding portion corresponding to the shape of the work to be clamped is protruded from the base body.

[0007]

Accordingly, while the movable jaw is moved to the fixed jaw side by the screw feed means while holding the work between the base body of the base of the present invention and the base opposed thereto, the base of the present invention is obtained. Since the main body swings around the pin so as to be along the surface to be clamped of the work, the screw feed means is further tightened to a proper tightening force to clamp the work. With this configuration, even when both sides of the work to be held are not parallel, the work can be held in a state in which both the bases are in close contact with the work, so that the work is not chattered due to “one-sided effect”.

[0008] Further, when a holding portion corresponding to the shape of the work to be held is protruded from the base body, a deformed work can be similarly stably held without "one-sided effect".

[0009]

An embodiment of the present invention will be described with reference to the drawings.
1 and 2, reference numeral 1 denotes a vice main body, on which a fixed jaw 2 and a movable jaw 3 are provided on a slide surface 1a of the vice main body 1. The movable jaw 3 is moved forward or backward in conjunction with the screw feed means 4. A is a center line of the movable jaw 3 in the moving direction.

Reference numeral 5 denotes a base member which is attached to the movable jaw 3 by screws 6. On the side opposite to the side of the base member 5 attached to the movable jaw 3, a horizontal ridge 7 is vertically arranged with a gap therebetween. The book is formed. Reference numeral 8 denotes an abutment projection provided on the center line A at the tip of the ridge 7, which has a shape such that a part of a cylinder projects from the ridge 7.

Reference numeral 9 denotes a base body, and reference numeral 10 denotes a ridge protruding from a back side of the base body 9. The thickness of the ridge 10 is slightly smaller than the gap between the two ridges 7. Numeral 11 denotes an abutment projection provided on the center line A at the tip of the ridge 10, which also has a shape in which a part of a column is projected from the ridge 7 similarly to the abutment projection 8. .

Since the height of the ridge 7 including the abutting projection 8 is the same as the height of the ridge 10 including the abutting projection 11, the ridge 10 is fitted into the gap between the ridges 7. Then, the abutting projection 8 abuts on the non-projecting portion 9 a of the base body 9, and the abutting projection 11 abuts on the non-projecting portion 5 a of the base body 5. From this state, the base body 9 is attached to the base body 5 by inserting the pins 13 into the insertion holes 12 formed through the fitted ridges 7 and 10. The diameter of the insertion hole 12 is such that a slight gap is formed between the insertion hole 12 and the inserted pin 13. Reference numeral 14 denotes a base similar to the conventional base which is attached to the fixed jaw 2 with a screw 15.

When using a vice provided with a base configured as described above, the movable jaw 3 is moved by the screw feed means 4 while holding the work on the center line A between the base 9 and the base 14. Move to the fixed jaw 2 side. When the base body 9 of the movable jaw 3 contacts the work, the base body 9
Swings around the pin 13 so as to be along the side surface on which the work is held, so that the screw feed means 4 is further tightened to an appropriate tightening force to hold the work.

Therefore, even when both sides of the work to be clamped are not parallel, since both the bases can be clamped in close contact with the work, chattering at the time of processing the work by "one-sided effect" does not occur. Since there is a gap between the insertion hole 12 and the pin 13, the tightening force on the work is not applied to the pin 13 but is transmitted through the abutting projections 8 and 11, so that the pin 13 is broken. No problem occurs in durability due to bending or bending. However, from the viewpoint of durability, it is desirable that the base body 5 and the base body 9 (particularly, the abutment projections 8 and 11 and the non-projecting ridges 9a and 5a serving as the abutment partners) be subjected to quenching.

FIGS. 3 and 4 show another embodiment of the present invention, and the same elements as those in FIGS. 1 and 2 are denoted by the same reference numerals. In this embodiment, the base body 9 provided on the movable jaw 3 is provided.
Further, a holding portion 16 according to the shape of the work W to be sandwiched is provided on a base 14 provided on the fixed jaw 2. According to this, it is possible to hold a work that is originally not parallel to both sides held by the base, that is, a work having an irregular shape. When the lower surface of the work W is also supported by the holding portion 16 as in this embodiment, the work W having a small thickness can be stably held. Furthermore, since the base body 9 can be detached from the base body 5 by pulling out the pins 13, a plurality of base bodies 9 having different shapes of the holding portions 16 are prepared, and by appropriately replacing these, various types of irregularly shaped workpieces are prepared. Can be clamped.

In the above embodiment, the base member 5 is attached to the jaw by the screw 6. Therefore, if the attachment pitch of the screw 6 is adjusted, the base member 5 can be replaced with a conventional vice. It is possible.

In the above embodiment, the base according to the present invention is provided on the movable jaw 3 side of the vise, but may be provided on the fixed jaw 2 side. Further, in the embodiment, the number of protrusions for fitting the base body 5 and the base body 9 is such that two protrusions 7 on the base body 5 side and one protrusion 10 on the base body 9 side are provided. However, the number may be arbitrary, such as two on one side and three on the other side.
The shape of the pin 13, the shape of the pin 13 and other details are not limited to those in the above embodiment.

[0018]

[Effects of the Invention] According to the present invention, a work with low parallelism on both sides to be clamped can be clamped without becoming "one-sided", so that chattering of the work at the time of machining can be prevented and machining accuracy can be improved. It has the effect of being able to. In addition, if a holding part is provided on the base body, a deformed work can be clamped, and by exchanging the base body by a simpler work, a deformed work of a different shape can be clamped. It has a feature that can be suitably implemented as

[Brief description of the drawings]

FIG. 1 is a plan view of a vise having a base according to an embodiment of the present invention.

FIG. 2 is a side view showing a main part of FIG.

FIG. 3 is a plan view of a vice provided with a base according to another embodiment of the present invention.

FIG. 4 is a sectional view taken along line BB of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vice main body 2 Fixed jaw 3 Movable jaw 4 Screw feed means 5 Base body 9 Base body 7,10 Ridge 8,11 Abutment projection 5a, 9a Non-protrusion part 12 Insertion hole 13 Pin 16 Holding part W Work

Claims (2)

(57) [Scope of request for utility model registration] 1. A movable jaw is provided on a slide surface of a vice body having a fixed jaw so as to face the fixed jaw, and the movable jaw is moved forward or backward on the slide surface in conjunction with a screw feed means. A vise for clamping a work between bases provided at the respective ends of the fixed jaw and the movable jaw, the base including a base body attached to the movable jaw or the fixed jaw, and a base body attached to the base body; On the mounting surface of the base body and the base body, a lateral ridge is formed to be fitted to each other, and an abutment projection is provided at the tip of the ridge, and the abutment projection of each ridge is included. The abutment height on one side is made to abut against the non-protrusion on the other side, and the base of the base is inserted by a pin inserted into the insertion hole formed in the fitted ridge. To A base of a vise, which is attached to a base of a base. 2. A base for a vice according to claim 1, wherein a holding portion corresponding to the shape of the work to be held is projected from the base body.