JPH06143151A - Vise and its nail manufacturing method - Google Patents

Abstract

(57) [Summary] [Purpose] To hold a work with a special and complicated shape reliably and easily and without damaging it. It also has versatility. [Structure] Claws 21c and 22c made of non-hardened steel are detachably fixed to the pair of jaws 13 and 15 of the vise main body 11, respectively. The claws 21c and 22c are provided with recesses 25c and 26c that match the shapes of the side surface and the lower surface of the work Wc. The side surface and the lower surface of the work Wc are fitted into these recesses 25c and 26c, and the work Wc is sandwiched by both the claws 21c and 22c. [Effect] Different work pieces can be handled by exchanging the claws.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vise used for holding a work having a special shape in a machine tool or the like and a method for manufacturing a claw thereof.

[0002]

2. Description of the Related Art In general, a vise has a fixed jaw integrally provided on a body of the vise, and a movable jaw that moves toward and away from the fixed jaw is slidably supported. The jaws for sandwiching the work are fixed to both of these jaws. Some of these claws can be attached to and detached from the jaw by being fixed by, for example, bolts. In the conventional vise, the claw is made of hardened steel, and the contact surface with the work is flat.

However, in a vise with such a claw,
Difficult to hold workpieces with complicated shapes. For example, the protrusion on the side of the work must be released from the nail,
The holding posture of the work is restricted and the work of attaching the work to the vise becomes troublesome. Also, depending on the shape, there are some workpieces that cannot be held. Further, in the case of a work having a complicated shape, the contact area with the claw tends to be small, but since the claw is made of hardened steel and is hard, the work is likely to be damaged by holding it in a vise.

Therefore, as shown in FIG.
It is also practiced to sandwich the work W between the claws 3 and 4 which are fixed to each other via appropriate contact plates 5 and 6 made of a relatively soft material. However, since the contact plates 5 and 6 which have been conventionally used are not particularly held by the claws 3 and 4, the work of attaching the work W to the vise is very troublesome. Further, if the contact plates 5, 6 are too soft, the holding of the work W becomes uncertain.

[0005]

As described above, in the conventional vise, the pair of claws for sandwiching the work has a flat contact surface to the work and is made of hardened steel. In the case of a work having a special shape, it is difficult to properly hold the work and the work is easily damaged. In addition, conventionally, an appropriate contact plate has been interposed between a specially shaped work and the claw, but this is not easy to attach the work to the vise and the work is held. There was a problem that could easily become uncertain.

The present invention is intended to solve such a problem, and can reliably and easily hold a work having a special and complicated shape without damaging it, and has a versatile vise. The first purpose is to provide. In addition, it is important to manufacture this vise claw easily and accurately.
The purpose of.

[0007]

In order to achieve the first object, the vise of the invention of claim 1 is a vise main body and a pair of jaws provided on the vise main body and moving toward and away from each other. And a pair of claws that are detachably fixed to these jaws and sandwich the work, and these claws are made of non-quenched steel and have a recessed portion that fits on the side surface of the work.

Further, in order to achieve the second object, the vise main body in which the jaw materials are fixed to both jaws is held in the work holding part of the machine tool. The concave portion is cut in the material of the claw according to the side shape of the work to be held.

[0009]

According to the vise of the first aspect of the present invention, when holding a work having a complicated shape, the pair of jaws are provided in advance with the claws having the recesses shaped to fit the side surfaces of the work. Then, so that the side surface of the work fits into the concave portion of the claw,
The work is pinched by both jaws and both jaws are brought close to each other to fix the work. In this state, the side surface of the work is fitted in the concave part of the claw, so that the work is securely held, and the work is damaged due to the claw made of non-hardened steel and relatively soft. To be prevented. Further, when holding a work having a different shape, the claws may be replaced.

Further, in the method for manufacturing a vise claw according to the second aspect of the invention, the vise body in which the jaw materials are fixed to both jaws is held in the work holding part of the machine tool, and the vise should be held. By cutting the concave portion in the material of the claw according to the side surface shape of the work, the side surface of the work is surely fitted into the concave portion of the claw when the work is held by a vise thereafter.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Reference numeral 11 is a vise main body, and notch grooves 12 through which bolts and the like for fixing the vise main body 11 to a work table of a machine tool are formed at four locations around the vise main body 11. ing. And the vise body 11
A fixed jaw 13 is integrally formed on the upper front portion.
A pair of left and right rails 14 reaching the fixed jaw 13 are integrally formed on the vise body 11, and a movable jaw 15 is supported on the rail 14 so as to be slidable in the front-rear direction. The movable jaw 15 is screwed with a screw rod 16 whose position is fixed with respect to the vise main body 11, and is moved by rotating the screw rod 16 to move toward and away from the fixed jaw 13. It is a thing.

Further, claw mounting portions 17 and 18 are formed at the facing portions of the jaws 13 and 15, respectively. These claw mounting parts 17 and 18 are claws 21a, 22a, 22a, 22a, 22a for sandwiching the work,
21b, 22b, 21c and 22c are detachably fixed by a plurality of bolts 23. Of the two pairs of pawls 21a, 22a, 21b, 22b shown in FIG. 1, one pawl 21a, 22a
Is an ordinary one and is made of hardened steel, and has a flat surface for contacting the work, that is, a surface facing each other. On the other hand, the other 21b and 22b are for sandwiching a work (not shown) having a special and complicated shape, and each of them is not hardened and is a softer non-hardened steel. The concave portions 25b and 26b, which are made of the same shape as the side surface and the lower surface of the work and are fitted to the side surface and the lower surface, have the upper surface and the other claw 22b.
, 21b. Further, the claws 21c and 22c shown in FIG. 2 are also for sandwiching the work Wc having another complicated shape, and are made of non-quenched steel, respectively, and the side surface and the bottom surface of the work Wc are also provided. The recesses 25c and 26c, which conform to the shape of the above, and whose side and bottom surfaces are fitted, are formed by opening to the upper surface and the surface facing the other claws 22c and 21c.

FIG. 4 shows an example of a machining center 30 which is a numerically controlled machine tool utilizing the vise. In this machining center, a work table 32 that is a work holding portion is provided below a machine body 31. The work table 32 is driven horizontally in two directions orthogonal to each other, and the vise main body 11 and the like are detachably fixed to the upper surface thereof. The upper part of the machine body 31 has a spindle head that is vertically driven above the work table 32.
33 are provided. And, in this spindle head 33,
A main shaft 35 is provided which is rotationally driven by a motor 34, and a tool holder 37 holding a tool 36 in a removable manner is detachably attached to a lower end portion of the main shaft 35. Furthermore, the machine body 31 is provided with a tool magazine 38 that stores a large number of tools 36, and an automatic tool changer 39 that exchanges the tools 26 between the tool magazine 38 and the spindle 35. .

Next, the operation of the above configuration will be described. First, the holding of the work by the vise will be described. The vise is used, for example, when the upper surface of the work is cut flat by the machining center 30. When holding a work having a complicated shape, the claws 21b, 22b having the recesses 25b, 26b, 25c, 26c shaped to fit the side surface and the lower surface of the work in advance are held.
, 21c and 22c are attached to both jaws 13 and 15 by tightening them with bolts 23. The side surface and the lower surface of the work are concave portions 25b, 26b, 25 of the claws 21b, 22b, 21c, 22c.
Both claws 21b, 22b, 21c, 22 so as to fit with c, 26c
By sandwiching the work with c and turning the screw rod 16 to bring the movable jaw 15 closer to the fixed jaw 13,
Fix the work. FIG. 2 shows a state in which the work Wc is held by the claws 21c and 22c. Also, the vise body 11
Is fixedly held on the working table 32 of the machining center 30. Then, by appropriately moving the work table 32 and running the tool 36 attached to the rotating spindle 35 along the upper surface of the work Wc held in a vise, the upper surface of the work Wc is flattened. To cut. The work Wc that has been cut is the screw rod 16
After turning the movable jaw 15 away from the fixed jaw 13,
Remove from vise.

As described above, when holding a work having a special and complicated shape, the claw 21b having the recesses 25b, 26b, 25c, 26c whose shapes match the side surface and the lower surface of the work,
If 22b, 21c and 22c are attached to jaws 13 and 15, claw 21b
, 22b, 21c, and 22c sandwiching the work, the side surface and the lower surface of the work are fitted into the recesses 25b, 26b, 25c, and 26c of the claws 21b, 22b, 21c, and 22c.
Work can be securely fixed and held. Also, the recess 25b,
By setting the shapes of 26b, 25c, and 26c, the holding posture of the work can be set appropriately. Further, the work and the claws 21b and 22b
, 21c, 22c and the contact area is wide, and the claw 21b
, 22b, 21c, 22c are made of non-quenched steel and are relatively soft, which prevents damage to the work. In addition, since generally the work of the same shape is repeated, once the pawls 21b, 22b, 21c, 22c that fit this work are fixed to the jaws 13, 15, only the work needs to be removed. Workability is good because it does not take time to attach and detach the work. Furthermore, for workpieces of different shapes, the claws 21b, 22
It is a versatile vise that can be handled only by replacing b, 21c and 22c.

Next, a method of manufacturing the claws 21b, 22b, 21c, 22c for holding the work having the complicated shape will be described by taking the claws 21c, 22c for the work Wc as an example.
First, as shown in FIG. 3, first, the jaw mounting portions of both jaws 13 and 15 are attached.
The nail materials 41 and 42, that is, the materials to be the nails 21c and 22c, are fixed and attached to the bolts 17 and 18 by bolts 23, respectively. Further, the distance between the jaws 13 and 15 is adjusted to the distance when holding the work Wc. In addition, the vise main body 11 is used as a machining center.
It is fixedly held on the work table 32 of 30. In the machining center 30, the feed amount of the work table 32 and the spindle head 33 is programmed in advance according to the shapes of the side surface and the lower surface of the work Wc. The work table 32 and the spindle head 33 move appropriately while rotating the spindle.
Tool 36 attached to 35 is recessed in claw materials 41 and 42 25c
, 26c are cut. At this time, the cutting process is performed so that the entire concave portions 25c and 26c that straddle both the claw materials 41 and 42 have the shapes of the side surface and the lower surface of the work Wc. Thus, the claws 21c, 22c having the recesses 25c, 26c having the same shape as the side surface and the lower surface of the work Wc are formed.

According to the above manufacturing method of the claws 21b, 22b, 21c, 22c, when the work is held by the vise after that, the side surface and the lower surface of the work are claws 21b, 22b, 21c.
, 22c, the recesses 25b, 26b, 25c, 26c are securely fitted. Thus, the recesses 25b, 26b, 25c, 26c can be accurately formed. Further, the manufacturing method itself is easy. While the vise main body 11 is attached to the work table 32 of the machining center 30, the recesses 25b, 26b, 25c, 26
After processing c, the work can be held by a vise and the work can be cut at the same machining center 30.

The present invention is not limited to the above embodiment, but various modifications can be made. For example,
The vise of the present invention can be used for other than cutting by a machining center. Further, the shape of the claw is not limited to that shown in the above-mentioned embodiment, and may be appropriately set according to the shape of the work to be held. Further, depending on the processing conditions of the work, the concave portion of the claw may be fitted only on the side surface of the work. In addition, in the conventional vise,
A claw having the above-described recess may be further detachably fixed to the claw fixed to the jaw.

[0019]

According to the first aspect of the present invention, a pair of jaws for sandwiching a work can be freely attached to and detached from a pair of jaws provided on the vise main body, and these jaws are fitted to the side surfaces of the work. Since it has a recess with a round shape, it can securely and easily hold a work with a special and complicated shape.In addition, both jaws are made of non-hardened steel and are relatively soft, which prevents damage to the held work. It can be prevented. Along with this, works of different shapes can be dealt with only by exchanging the claws, and the versatility is high.

According to the second aspect of the present invention, the vise main body, in which the jaw materials are fixed to both jaws, is held in the work holding portion of the machine tool, and the vise has the following side surface shape of the work. Since the concave portion is cut in the material of the nail, the nail having the concave portion that should match the side surface shape of the work can be easily and accurately manufactured.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a vise of the present invention.

FIG. 2 is a view showing a claw portion holding the work,
(A) is a plan view and (b) is a sectional view.

FIG. 3 is a plan view of a claw material portion fixed to a jaw before cutting.

FIG. 4 is a side view of a machining center that is also used for cutting the same nail material.

FIG. 5 is a sectional view showing an example of a conventional vise.

[Explanation of symbols]

 11 Vise main body 13 Fixed jaw (jaw) 15 Movable jaw (jaw) 21b, 22b, 21c, 22c Claws 25b, 26b, 25c, 26c Recess 30 Machining center (machine tool) 32 Work table (work holding part) 41 Claw material ( Nail material) 42 Nail material (Nail material) Wc work

Claims (2)

[Claims] 1. A vise main body, a pair of jaws provided on the vise main body and moving toward and away from each other, and a pair of claws detachably fixed to the jaws and sandwiching a work, the claws comprising: A vise that is made of non-quenched steel and has a concave portion that fits into the side surface of the workpiece. 2. The method for manufacturing a vise claw according to claim 1, wherein the vise main body in which the jaw materials are fixed to both jaws is held in a work holding part of a machine tool, and the vise is held. A method for manufacturing a vise claw, characterized in that the concave portion is cut in the material of the claw according to a side surface shape of a work to be processed.