JPH0819925A - Workbench for stock vice - Google Patents

Abstract

PURPOSE:To provide a jig high in generality capable of fixing small and thin works by positioning them precisely by simple operation on a workbench used in installing the small and thin works on a stock vice installed on a table of a machine tool. CONSTITUTION:A spacer block 10 to be engaged with a guide 5 in the direction in parallel with the moving direction of a movable edge 4 free to slide and a work placing plate 15 fixed on the upper surface of this spacer block 10 with a screw 12 are furnished between the movable edge 4 and a fixed edge 3 of a stock vice 1. The spacer block 10 is furnished with an upper surface 13 in parallel with the lower surface of a base of the stock vice 1, and this upper surface 13 is furnished with one side 11 in parallel with a guide. The work placing plate 15 is furnished with a rectilinear step part 16 to be engaged with the one side 11 of the spacer block 10 on its lower surface and is furnished with a collar 24 to form an inside vertical surface 25 in parallel with this step part 16 on the upper surface of the work placing plate 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work table attached to a vise mounted on a table of a machine tool, and used for holding the work by attaching it to the vise when the work is a small or thin object. It relates to a jig.

[0002]

2. Description of the Related Art When a large number of identical parts are continuously machined, a vise is fixed on a table of a machine tool, and the work can be mounted on the table in order to easily and quickly attach the work to the machine tool. A holding structure is adopted. It is desirable that the vise used in this case has a certain degree of versatility that can be commonly used even when the size or shape of the work is changed. As a structure of a vise with such versatility, a long and narrow base with a rectangular plan view is provided, a fixed blade is provided at one end of this base, and the movable blade facing this fixed blade is There is known a vise having a structure which is provided on a moving table which is movable along a direction guide and which can be fixed at a plurality of predetermined positions by a knock pin or the like.

In this type of vise, the fixed blade and the movable blade are provided on the upper surface of the base so that the work can be reliably fixed even if the work (thickness in the direction perpendicular to the table surface) is thick to some extent. It is installed at a higher position. Therefore, if the work is small or thin, if you try to hold the work while the work is placed on the upper surface of the base, the fixed blade or the movable blade will project above the work, making it impossible to machine the work upper surface. It happens that it ends up. Therefore, in such a case, a spacer is placed on the base of the work between the fixed blade and the movable blade, and the work is placed on the spacer and sandwiched between the fixed blade and the movable blade. Since the work has various thicknesses, a plurality of types of spacers are prepared so that the spacer can be used properly according to the size and thickness of the work.

On the other hand, when fixing a work with a vise, the reference position of the work in the longitudinal direction of the vise (moving direction of the movable blade) is determined with reference to the side abutting the fixed blade of the vise. However, the reference position of the work in the width direction of the vise (direction perpendicular to the longitudinal direction) is not fixed. Therefore, when machining must be performed with one side of the work and one side in the direction perpendicular to it, for example, when machining grooves on the top surface of the work, the work is fixed with a vise. Each time, the reference position of the work in the vise width direction has to be set, which causes a problem that the work becomes troublesome and the machining efficiency decreases.

Of course, in such a case, it is possible to perform processing using a cross vise or the like in which two pairs of fixed blades and movable blades are provided in directions orthogonal to each other, and it is also possible to mass-produce works. For example, it is possible to perform processing by using a dedicated work table or vise suitable for the shape of the work.

[0006]

However, since the cross vise is a special type and has a low versatility, there are few processing sites where cross vise of various sizes are prepared. Moreover, when the number of lots of works is not so large, it is economically disadvantageous to prepare a dedicated work table or vise. Therefore, in such a case, set the reference position in the vise width direction of the work every time the work is fixed as described above, or use the scale or jig when fixing the work with the vise. Although a method of defining a reference position in the width direction is adopted, both methods have a problem that the work is troublesome and an error is likely to occur, and the work takes a long time to significantly reduce the machining efficiency.

An object of the present invention is to obtain a highly versatile jig capable of accurately positioning a small work or a thin work and fixing it on a vise by a simple operation.

[0008]

The workbench of the present invention comprises:
Between the movable blade 4 and the fixed blade 3 of the vise 1, a spacer block 10 slidably fitted to a guide 5 in a direction parallel to the moving direction of the movable blade 4, and a screw on the upper surface of the spacer block 10. And a work table 15 fixed by 12. The spacer block 10 has an upper surface 13 parallel to the lower surface of the base of the vise, and this upper surface has one side 11 parallel to the guide. The work table 15 is provided with a linear step portion 16 which engages with the one side 11 of the spacer block on the lower surface thereof, and a flange which forms an inner standing surface 25 parallel to the step portion on the upper surface of the work table 15. 24 are provided.

More preferably, the spacer block 10 and the work stand 15, the square rod 18 fixed to the upper surface of the work stand, and the female screw blocks 20a and 20b fixed to the opposite sides of the collar 24 of the work stand. The screw rod 23 is screwed into the female screw block. The collar 24 of the work stand is detachably provided with a screw 26. The upper surface of the work stand 15 is provided with a concave groove 17 in a direction orthogonal to the inner upright surface 25 of the collar for fitting the square rod. The female screw block is fixed so that its screw hole faces the collar 24.

[0010]

The spacer block 10 of the work table of the present invention
Can be used alone as a work table similar to a conventional spacer. Further, in the work table 15 in which the collar 24 is detachable, by removing the collar 24 and fixing the work table 15 on the spacer block 10, a work similar to the conventional case when fixing a work having a smaller thickness is performed. It can be used as a spacer.

When the work table 15 is fixed to the spacer block 10 with the step portion 16 on the lower surface thereof and the one side 11 of the upper surface of the spacer block being in contact with each other, the inner surface 25 of the flange of the work table is the work surface. It serves as a reference surface for positioning the position of the work 7 placed on the table 15 in the vise width direction.
In this case, the work placed on the work placing table 15 is manually struck by the collar 2
The work can be positioned and fixed in the longitudinal direction and the width direction of the vise by fastening it with a vise while pressing it against 4, but the female screw block is fixed to the work mounting base, and the work mounting base 15 is fixed by the screw rod 23. If the upper work is pressed against the collar 24 and then fastened with the vise 1, the work can be positioned more accurately.

When the work cannot be fixed with a vise because the work size is small and both ends of the work do not project from the work placing table 15, the concave groove 17 of the work placing table is used.
The square rod 18 is fitted to and fixed to the square rod 18, and the work is sandwiched between the square rod 18 and the fixed blade or the movable blade of the vise.

Further, when a plurality of vices are mounted on the table 30 and a thin work having a large size is processed,
By mounting the work table from which the collar 24 is removed and the work table still attached to each vise, it is possible to position and fix a thin work having a large size in the longitudinal direction and the width direction of the vise.

[0014]

1 is an exploded perspective view showing an embodiment of the present invention, and FIG. 1 is a perspective view showing a working state of a work table of the embodiment. The work table of the illustrated embodiment has a spacer block 10 that is movably fitted along the guide 5 of the base 2 of the vise 1 and a collar 24 that regulates the position of the work in the vise width direction.
And a plate-shaped work table 15 provided on one side. The spacer block 10 is a plane in which the upper surface 13 is parallel to the upper surface 6 of the vise base, and is a work table 15
Is provided with a screw hole 14 for fastening a screw 12 for fixing. At least one side edge 11 of the upper surface 13 of the spacer block is a side parallel to the guide 5.
A linear step portion 16 that engages with the side 11 is provided on the lower surface of the work table 15, and the flange 24 is provided such that its inner standing surface 25 is parallel to the step portion 16.

In the work table of the illustrated embodiment, the work table 1
The female screw blocks 20a and 20b can be fixed to the side opposite to the side provided with the collar 24 of FIG. The screw holes 21 of the female screw blocks 20a, 20b are
Penetrates towards. A screw rod 23 having a knob 22 fixed to the base end is screwed into the screw hole 21 of the female screw block.
The tip of the screw rod projects inside the female screw block (on the side of the collar 24).

Further, in the work table 15 of the embodiment shown in the figure,
On its upper surface, a groove 17 is formed in a direction orthogonal to the inner surface 25 of the collar.
The square rod 18 whose height at the time of mounting is substantially the same as the upper edge of the collar 24 can be fixed to the groove with a screw 19.

Next, a method of using the work table of the present invention shown in FIG. 2 will be described with reference to FIG. The thin workpiece 7 shown in FIG. 1 has a shape in which a large number of grooves 8 in the vise longitudinal direction and the width direction are machined on the upper surface. When processing this work, the spacer block 10 is movably fitted to and mounted on the guide 5 of the base 2 on the base 2 between the fixed blade 3 and the movable blade 4 of the vise 1. The work table 15 is fixed by abutting the step portion 16 on the back surface and one side 11 of the upper surface of the spacer block, and female screw blocks 20a and 20b in which the screw rod 23 is screwed onto the work table 15. The square rod 18 is fixed, and two works are simultaneously fixed on the work table 15 in directions orthogonal to each other.

At this time, the outer ends 9, 9 of the works 7, 7 in the vise longitudinal direction are in a state of protruding from the ends of the work table 15 and the spacer block 10. Each work 7, 7 is positioned and fixed in the width direction of the vise by the inner raised surface 25 of the collar and the screw rod 23, and further, the fixed blade 3 of the vise and the movable blade 4 end the work 7, 7. By sandwiching 9, the two works 7, 7 are firmly sandwiched and fixed between the fixed blade 3 of the vise and the square rod 18 and between the movable blade 4 of the vise and the square rod 18, respectively. .

In this state, the positions of the two works 7, 7 in the longitudinal direction of the vise are positioned with reference to the blade surface 3a of the fixed blade of the vise, and the position of the vise in the width direction is based on the inner surface 25 of the collar. Be positioned as. Therefore, the machining reference positions of the workpieces 7 in the vise longitudinal direction and the width direction are the width W of the workpiece, the width T of the square rod, and the distance S from the center of the spacer block of the inner standing surface 25 of the collar (the longitudinal center of the vise). Is automatically calculated by presetting in the NC device of the machine tool or the like.

In the example shown in FIG. 1, the square rod 18 is attached to the work table 15 and two small thin workpieces are machined at the same time. However, when machining a larger thin workpiece, the work table 15 is used. The square rod 18 is removed, one or both of the screw rods 23 bring the workpiece into contact with the inner vertical surface 25 of the collar, and the longitudinal ends of the workpiece are clamped by the fixed blade 3 and the movable blade 4 of the vise to fix the workpiece. Fix it. In such a case, when the work is clamped by the vise without using the screw rod 23 (and therefore the female screw block 20 is removed from the work placing table 15), the work is manually pressed against the inner vertical surface 25 of the brim to form the vise. By fastening, it is also possible to position and fix the work in the longitudinal direction and the direction perpendicular to the longitudinal direction of the vise. However, if the work 7 is not so large as to protrude from the work stand 15 in the width direction, the structure in which the work is pressed against the inner vertical surface 25 of the collar by the screw rod 23 can more easily and accurately position and fix the work. .

The work table of the present invention is a work table 1.
Since 5 can be removed from the spacer block 10, the spacer block 10 can be used as a work table similar to a conventional spacer with the work table 15 removed. Further, as shown in the illustrated embodiment, the structure in which the collar 24 of the work stand is fixed to the side of the work stand 15 with the screw 19 makes it easy to machine the inner side surface 25 of the collar and at the same time removes the collar 24. By removing it, it can be used as a work stand similar to a conventional spacer when processing a large thin object.

[0022]

According to the work table of the present invention described above, it is possible to handle the work of various sizes and thicknesses by attaching and detaching the components constituting the work table.
It has the effect of being more versatile than conventional work platforms. When the work is small or thin, the work can be easily positioned not only in the longitudinal direction of the vise but also in the direction perpendicular to the longitudinal direction, and work of the same shape that requires machining positioning in mutually orthogonal directions one after another. When machining, there is an effect that the work can be easily attached to the machine tool and the work can be attached in a short time, so that the loss of the machining time can be avoided.

[Brief description of drawings]

FIG. 1 is a perspective view showing one usage mode of an embodiment.

FIG. 2 is an exploded perspective view showing an embodiment of a work table.

[Explanation of symbols]

 1 Vise 3 Fixed Blade 4 Movable Blade 5 Guide 10 Spacer Block 11 Side 12 Screw 15 Work Stand 17 Recessed Groove 18 Square Rod 20a, 20b Female Thread Block 23 Screw Rod 24 Collar 25 Inner Elevation 26 Screw

Claims (2)

[Claims] 1. A guide (5) between the movable blade (4) and the fixed blade (3) of the vise (1) in a direction parallel to the moving direction of the movable blade (4).
A spacer block (10) slidably fitted to the spacer block (10) and a work stand (15) fixed to the upper surface of the spacer block (10) with screws (12) are provided. The work table (15) has an upper surface (13) parallel to the lower surface of the base, and the upper surface has one side (11) parallel to the guide. (11)
Equipped with a linear step (16) for engaging with the work table (1
A collar that forms an inner elevation (25) parallel to this step on the upper surface of (5).
Work table of vice characterized by having (24). 2. The spacer block (10) and the work stand (15), a square rod (18) fixed to the upper surface of the work stand,
Female screw blocks (20a, 20b) fixed to the opposite side of the collar (24) of the work stand, and screw rods screwed to the female screw blocks.
(23), and the collar (24) of the work stand is detachably provided with a screw (26), and the upper surface of the work stand (15) is an inner side surface of the collar for fitting the square rod ( The vice work according to claim 1, characterized in that it is provided with a groove (17) in a direction orthogonal to 25), and the female screw block is fixed with its screw hole facing the collar (24). Stand.