JPH0146258B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an angle adjustment device for a machine vise used in, for example, a milling machine, a drilling machine, or the like.

Sign vices have traditionally been used when performing precision machining using milling machines, drilling machines, etc. This sign vise has a vise body mounted on one end of the base so that it can be raised and lowered freely by a horizontal shaft, a roller is fixed to the lower part of the free end of this vise body, and a block gauge is installed between this roller and the base. It is used to determine the inclination angle of the vise body.

When using such a sign vise, it is necessary to replace the conventionally installed machine vise, which is cumbersome, and if the number of workpieces that require the use of a sign vise is small, an expensive sign vise must be prepared separately for that purpose. This is also uneconomical.

In view of the above-mentioned problems, it is an object of the present invention to provide an angle adjustment device that can function as a sign vise by being attached to a machine vise already attached to a milling machine or the like. be.

That is, in this invention, an angle adjustment member that rotates around an axis in the front and back direction is provided on the front surface of a receiving member that is applied to the front surface of a stationary jaw, and a groove for receiving a workpiece is provided on the front surface of this angle adjustment member. A receiving piece is provided, and a pair of left and right recesses into which angle adjustment rollers are fitted are formed on both sides of the bottom of the receiving member.

Since this invention has the above structure, the rollers are fitted into the recesses on both sides of the bottom of the receiving member, one roller is placed on the bottom of the vise body, and the other roller is placed on the block gauge with the other roller placed on the bottom of the vise body. By placing the receiving member on the holder, the receiving member can be tilted at an accurate angle.

Therefore, by changing the height of the block gauge, the receiving member can be tilted to a desired angle, and in this state, the workpiece is sandwiched between the angle adjusting member and the fixed jaw, and the workpiece is placed in the groove of the receiving member or When accurately held and tightened by the projections, the workpiece is held at a precise angle. Therefore, the workpiece can be machined at an accurate angle.

In addition, since the angle adjustment member described above can be rotated around an axis in the front and back direction with respect to the receiving member, if high precision is not required, both rollers can be placed on the bottom of the vise body. Alternatively, the workpiece can be tilted to a desired angle by simply fixing the receiving member to the fixed jaw and rotating the angle adjusting member.

This invention makes it possible to hold the workpiece at an accurate angle and process it by simply attaching the receiving member with the simple structure to the conventional vise, allowing the conventional vise to be used as is. The effect is that the attachment of objects can be carried out extremely efficiently and is also economical.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

A in Fig. 1 is a precision vise that uses a milling machine, a drilling machine, etc., which is generally called a machine vise. 1 is the vise body, 2 is a fixed jaw formed integrally at the rear end, and the bottom surface 3 of the main body 1 and the fixed jaw 2 are The front surface 4 of the main body 1 is finished to be a precisely flat surface and is exactly at right angles, and when the main body 1 is fixed to the top surface of a table such as a milling machine, the bottom surface 3 becomes a surface parallel to the top surface of the table.

Reference numeral 5 denotes a protrusion integrally provided on the upper part of the main body 1 near the front, and a horizontal screw hole 6 provided in this protrusion 5 is
A threaded rod 7 having a handle 10 is screwed in, and a movable jaw 8 is connected to its inner end.

This movable jaw 8 also has each surface at exactly right angles,
Moreover, it is finished with an accurate flat surface and is adapted to slide on the bottom surface 3. Further, the threaded rod 7 is connected to the movable jaw 8 by known means so as to freely rotate and move forward and backward together.

Reference numeral 11 denotes a receiving member, the front and back surfaces of which are formed into precisely parallel planes. Further, a pair of left and right recesses 13 are formed on both sides of the bottom surface, and these recesses 13 are designed so that the dimensions between the centers of the rollers 12 fitted therein are maintained accurately and both rollers are parallel to each other. Precisely finished.

Further, in the center of the receiving member 11, a hole 14 in the front and back direction is provided.
A shaft 16 integrally provided at the rear center of the disc-shaped angle adjustment member 15 is rotatably fitted into the hole 14. The rear part of the hole 14 forms a large diameter part 17 as shown in FIG. 3, and the shaft 16 projects into this large diameter part 17.

Further, the shaft 16 is provided with a screw hole from the rear end,
The male screw 18 is screwed into this screw hole, but the large diameter part 1
As shown in FIG. 4, a wavy-bent annular spring 19 is fitted on the outer periphery of the shaft 16 protruding into the shaft 16, and the spring 19 By sandwiching the adjustment member 15, resistance is provided to the rotation of the adjustment member 15, and the member 15 is prevented from rotating by itself due to vibration or the like.

Further, the front surface of the angle adjustment member 15 is provided with a V-shaped groove 21 for receiving the workpiece and a receiving piece 22 for receiving the end of the workpiece. 23 in Fig. 4 is the angle adjustment member 1
5 is an angle scale provided on the outer periphery of the receiving member 11.
An indicator 24 indicating the scale 23 is provided on the upper front surface of the holder.

Numeral 26 is a stud bolt fixed to both sides of the receiving member 11, 27 is a clamp fitting fitted to the bolt 26 so as to be able to move forward and backward, and 28 is a wing nut screwed into the bolt 26 on the outside thereof.

In the above embodiment, the vise main body 1 is fixed onto the bed of a milling machine or the like using mounting bolts (not shown). When using the roller 12, first set the scale 23 on the indicator 24 of the receiving member 11 with the nut 28 loosened and the clamp fitting 27 left loose.
When the left and right rollers 12 fitted in the left and right recesses 13 are brought into contact with the bottom surface 3 of the main body 1, the groove 21 of the adjustment member 15 becomes perpendicular to the bottom surface 3 of the vice main body 1. In this state, when one roller 12 is lifted and a block gauge 29 is placed under this roller 12 as shown in FIG.
It is calculated from the center distance of the block and the height of the block.

After tilting the receiving member 11 in this way, if the workpiece is a round bar, fit the workpiece into the groove 21, and then turn the threaded rod 7 with the handle 10 to move the movable jaw 8 toward the fixed jaw 2. The workpiece is then clamped between the moving jaw 8 and the angle adjusting member 15.

Further, when the workpiece 30 is square as shown in FIGS. 2 and 3, it is held accurately by bringing the lower surface of the workpiece 30 into contact with the receiving piece 22. Further, by turning the angle adjusting member 15 and changing the angle of the groove 21 with respect to the receiving member 11, the workpiece can be held at an arbitrary angle.

Next, the left and right rollers 12 are placed on the bottom surface 3 as shown in FIG. be done.
In this state, the angle adjusting member 15 can be tilted at any desired angle using the scale 23 and the index 24 to hold and process the workpiece at any desired angle.

In this case, the angle accuracy is not very high, but it is suitable for processing a large number of items. Further, in this case, the roller 12 is unnecessary.

In addition to the above structure, the clamp fittings 27 and the like are omitted, and a pair of left and right holes are drilled in the receiving member 11, and the bolts inserted into these holes are screwed into a pair of left and right screw holes provided in the fixing jaw 2 to be fixed. You may also do so.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a vise implementing the device of this invention, Fig. 2 is an enlarged longitudinal sectional front view of the same as above, Fig. 3 is an enlarged longitudinal sectional side view of the same, Fig. 4 is an exploded perspective view, and Fig. 5
The figure is an enlarged longitudinal sectional front view of the roller and block gauge. DESCRIPTION OF SYMBOLS 1... Vise body, 2... Fixed jaw, 8... Movable jaw, 11... Receiving member, 12... Roller, 13... Recess, 15... Angle adjustment member, 16... Shaft, 21... Groove,
22... Uke piece.

Claims (1)

[Claims] 1. In a vise that has a fixed jaw at the rear of the vise body and a movable jaw that can move forward and backward in front of the vice body, the angle at which it rotates around the longitudinal axis is attached to the front surface of the receiving member that is applied to the front of the fixed jaw. An adjustment member is provided, and the front surface of this angle adjustment member is provided with a groove and a receiving piece for receiving the workpiece, and a pair of left and right recesses into which angle adjustment rollers are fitted are formed on both sides of the bottom of this receiving member. Angle adjustment device for vice.