JPH0413090Y2 - - Google Patents

Description

[Detailed description of the invention] (Technical field) The present invention relates to a vise device for clamping a predetermined object such as a workpiece between a fixed jaw and a movable jaw. It is related to.

(Prior art) A vise device generally includes a fixed jaw fixed to a base and a movable jaw that slides on the base to be able to approach and move away from the fixed jaw. The approach of the fixed jaws causes a predetermined object to be clamped between the two jaws. Usually, a screw feeding mechanism is employed as a feeding mechanism for the movable jaw in order to move the movable jaw with respect to the fixed jaw and firmly clamp an object between the two jaws. More specifically, a male screw member rotatably attached to the movable jaw at one end is screwed to a support part of a base at an intermediate part, and is moved in the axial direction by rotation of the base with respect to the support part. This allows the movable jaw to approach or move away from the fixed jaw.

By the way, in such a vise device, it may be desirable to move the movable jaw at high speed with respect to the fixed jaw. For example, if the size of the object changes drastically and it becomes necessary to move the movable jaw significantly in order to clamp the object,
That's right.

(Problem to be solved by the invention) However, in the conventional vise device, in order to move the movable jaw at high speed, it is necessary to rotate the male screw member quickly with respect to the support part, which is extremely troublesome. It was hot. Further, even if the male threaded member was rotated quickly, the moving speed of the movable jaw did not increase that much.

On the other hand, Japanese Utility Model Publication No. 56-38301 proposes a fast-forwarding vise device that can move a movable jaw at high speed without rotating the male screw member. In this vise device, the operating pin is disposed on the support portion so as to be movable in the axial direction so that one end protrudes above the support portion;
This operating pin is perpendicular to the male screw member at an axially long cutting portion formed on the side surface thereof. A female threaded part that can be screwed into the male threaded member is formed at the lower end of the cutting part of the operating pin, and this operating pin is always urged upward by a spring, thereby allowing the operation While the pin is always engaged with the male threaded member at the female threaded part of the cutting part, when the operating pin is pressed, the engagement of the female threaded part with the male threaded member is released. It's getting old.

In other words, in the vise device disclosed in this publication, the movable jaw is always attached to the fixed jaw by the rotational movement of the male threaded member based on the engagement between the female threaded portion of the operating pin and the male threaded member. However, if it is necessary to move the movable jaw rapidly, simply press the operating pin to connect the female threaded part of the operating pin to the male threaded part. By releasing the engagement, the movable jaw can be moved at high speed relative to the fixed jaw without rotating the male screw member.

However, in the vise device disclosed in this publication, as mentioned above, it is possible to move the movable jaw with respect to the fixed jaw at high speed by simply pressing the operating pin. Although it has its advantages, it is difficult to process the female threaded part of the operating pin that engages with the male threaded member, making it difficult to manufacture the operating pin, and the circumferential length of the female threaded part is at most a quarter of an inch. Because of the circular part and short,
There are problems in that the mechanical strength of the female threaded portion is not sufficient and the durability of the female threaded portion is low.

Of course, there is a so-called half-splitting method in which female threads are formed in a common material for two operating pins, the material in which the female threads are formed is divided into two, and female threads are simultaneously formed on the two operating pins. If this method is adopted, the manufacturability of the operating pin will be improved, but even in this case, the problem of poor durability of the female thread portion still remains.

The present invention was developed in view of these circumstances, and its purpose is to simplify the processing of the female threaded part that engages with the male threaded member, and to improve the durability of the female threaded part. To provide a vise device with excellent performance and easy operation for rapid forwarding of a movable jaw.

(Means for Solving the Problems) In order to achieve the above object, the vise device according to the present invention includes (a) a fixed jaw fixed to a base, and (b) sliding on the base. and is provided so as to be able to approach and move away from the fixed jaw.
a movable jaw that clamps a predetermined object between it and the fixed jaw; (c) a hollow support part fixedly provided on the base so as to face the fixed jaw with the movable jaw in between; (d) A rod-shaped rod, which is provided so as to be movable in the axial direction through the support part, and which is rotatably connected to the movable jaw at one end, and whose other end is an acting part to which a rotational force is applied. a male threaded member; (e) within the support portion, one end in the longitudinal direction is supported by the support portion so as to be rotatable around an axis parallel to the axis of the male threaded member, and an intermediate portion in the longitudinal direction; a longitudinal engagement member having an arcuate female threaded portion, the female threaded portion being arranged so as to be able to engage with the outer circumferential surface threaded portion of the male threaded member by rotation about the one axis; and (f)
It is disposed so as to be able to reciprocate by penetrating the supporting part inwardly and outwardly, and is connected to the other end in the longitudinal direction of the engaging member at the end located inside the supporting part, and is directed outward from the supporting part. By the protruding movement of the engaging member, the engaging member is rotated around the one axis, and the female threaded portion of the engaging member is engaged with the outer circumferential threaded portion of the male threaded member, while the inner side of the support portion is (g) an operating member that rotates the engaging member in the opposite direction about the one axis and releases the engagement with the male threaded member by pushing the operating member into the supporting member; When the operating member is moved in a non-pushing operation,
The device is configured to include biasing means for constantly engaging the female threaded portion of the engagement member with the outer circumferential threaded portion of the male threaded member.

(Operation and Effect) According to such a vise device, the engaging member is always engaged with the external threaded portion of the male threaded member at the female threaded portion by the urging force of the urging means. Therefore, it is possible to move the movable jaw relative to the fixed jaw based on the rotation of the male threaded member, and by pushing and moving the operating member, the female threaded part of the engaging member can be Since it can be detached from the outer circumferential threaded portion of the threaded member, the male threaded member can be moved in the axial direction without rotating, and the movable jaw can be moved at high speed relative to the fixed jaw.

In other words, according to the vise device of the present invention, a predetermined object can be firmly clamped between the fixed jaw and the fixed jaw by rotating the male screw member and moving the movable jaw. can be,
Furthermore, by simply pushing and moving the operating member, the movable jaw can be moved at high speed as required.

Moreover, in the present invention, since the engaging member that engages with the male threaded member only needs to have a female threaded portion in the middle portion in the longitudinal direction, the engaging member can be The female threaded portion can be formed extremely easily, and the female threaded portion can be formed to be sufficiently longer than a quarter circle, thereby greatly improving the durability of the female threaded portion and, by extension, the durability of the vise device. be.

In addition, in the present invention, since the connecting position of the operating member with the engaging member is farther from the rotation axis than the female thread forming position of the engaging member that engages with the male threaded member, the above-mentioned publication (Jikkosho 56-38301), the pressing operation force of the operating member is smaller than that of the vise device disclosed in No. 56-38301), and therefore, there is an advantage that the operability is superior to that extent.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

In FIGS. 1 to 3, reference numeral 10 denotes a base, and a fixed jaw 12 is integrally provided at one longitudinal end of the base, and a support portion 16 for supporting a spindle 30, which will be described later, is provided at the other end. ing. Also, those fixed jaws 12 of the base 10
A space 18 is formed at the center in the width direction between the base 10 and the support part 16, and the part that sandwiches this space 18 in the width direction is a guide part 20 parallel to the longitudinal direction of the base 10. There is. A movable jaw 22 that clamps a predetermined object such as a workpiece between the fixed jaw 12 is guided by the guide portion 20 and is slid in the longitudinal direction of the base 10. The movable jaw 22 is fixed to a movable jaw body 26 that clamps an object between it and the fixed jaw 12, and a bottom surface of a protrusion 24 that is projected into the cavity 18 from the bottom of the movable jaw body 26, It consists of a sliding plate 28 that vertically holds the guide portion 20 of the base 10 between the movable jaw main body 26 and the sliding plate 2.
The base 10 is configured to be able to slide in the longitudinal direction of the base 10 while the guide portion 20 is sandwiched between the base 10 and the guide portion 8 .

A spindle 30, which is a male screw member, is rotatably attached to one end of the movable jaw 22 (more precisely, the movable jaw main body 26). This spindle 30 is disposed parallel to the longitudinal direction of the base 10, and is disposed so as to pass through the support section 16 movably in the axial direction at an intermediate threaded section 32. Further, the other end of the spindle 30 is provided with a handle portion 34 as an acting portion for applying rotational force.

On the other hand, the support portion 16 through which the spindle 30 passes is hollow inside, as shown in FIGS. 4 and 5. An engaging member 38 is provided with an arc-shaped internal threaded portion 36 that engages with the threaded portion 32 of the spindle 30 in the hollow portion.
is provided. This engaging member 38 is a rod-shaped body with a rectangular cross section, is disposed with its longitudinal direction positioned in the vertical direction, and is supported at its lower end so as to be rotatable around an axis 40 parallel to the spindle 30. has been done. Further, at the upper end of the engaging member 38,
An operating pin 46 that passes through the wall of the support portion 16 in a horizontal direction perpendicular to the spindle 30 and is disposed above the spindle 30 with its tip intersecting the spindle 30 is rotated by the pin 48. possible to be connected. As the operating pin 46 moves in the axial direction, the engaging member 38 is rotated toward or away from the spindle 30.

The female screw portion 36 is formed on the side surface of the engaging member 38 facing the spindle 30, and a compression coil spring 44 is formed between the head 42 of the operating pin 46 and the support portion 16. Usually, the engaging member 38 is connected to the spindle 30 at the female threaded portion 36 by the biasing force of the compression coil spring 44.
When the operating pin 42 is pushed in against the biasing force of the compression coil spring 44,
The engagement member 38 is rotated clockwise in FIG. 4 to release the engagement.
In this embodiment, the operating pin 46, the compression coil spring 4
4 are used as an operating member and a biasing means, respectively. Note that the compression coil spring 44 is disposed in a state housed in a bottomed hole formed in the support portion 16.

According to such a vise device, the engaging member 38 is always attached to the threaded portion 32 of the spindle 30 at the female threaded portion 36 by the biasing force of the compression coil spring 44.
By applying a rotational force to the handle portion 34 of the spindle 30, the movable jaw 22 can be moved toward and away from the fixed jaw 12, and both jaws 12, 22 can be moved toward and away from the fixed jaw 12.
A predetermined object can be firmly clamped between the two. Further, when the operation pin 46 is pressed, the engagement between the engagement member 38 and the spindle 30 is released, and the spindle 30 can freely move in the axial direction with respect to the support portion 16. The movable jaw 22 can be moved without rotating the
can be freely moved toward and away from the fixed jaw 12. In other words, the movable jaw 22 can be moved by simply pressing the operating pin 46.
This makes it possible to move at high speed.

Furthermore, in this embodiment, as is clear from FIG. 4, the female threaded portion 36 that engages with the threaded portion 32 of the spindle 30 is made sufficiently longer than the quarter-circular shape, so that the mechanical strength of the female threaded portion 36 is Since the strength is sufficiently high and the durability is excellent, and only the female threaded portion 36 needs to be formed on the side surface of the engaging member 38, such an engaging member 38 can be easily threaded. It can be manufactured extremely easily by the so-called halving process, in which two pieces are manufactured at the same time by cutting the applied member in half.

Furthermore, in this embodiment, the operating pin 46
is connected to the engagement member 38 at a location farther from the rotation axis than the position where the female threaded portion 36 is formed.
Another advantage is that the force required to disengage the female threaded portion 36 of the engaging member 38 from the spindle 30 is reduced accordingly, and the operation for bringing the movable jaw 22 into the fast-forwarding state becomes easier.

Although one embodiment of the present invention has been described above, this is a literal illustration, and the present invention should not be interpreted as being limited to such a specific example.

For example, in the embodiment described above, a compression coil spring 44 is interposed between the head 42 of the operation pin 46 and the support section 16, and the urging force of the compression coil spring 44 causes the engagement member 38 to be screwed into its female screw. The compression coil spring 44 is directly interposed between the upper end of the engagement member 38 and the inner wall of the support portion 16. It is okay to do so.

Further, in the above embodiment, the engaging member 38 is disposed in the vertical direction, and the shaft 4 is disposed at the lower end thereof.
Although it was supported so as to be rotatable around 0, the arrangement direction and rotation center of the engaging member 38, and therefore the operation pin 46
The arrangement direction and the pressing operation direction can also be changed as appropriate depending on the situation.

Although not listed in detail, it goes without saying that the present invention can be implemented with various modifications and improvements without departing from the spirit thereof.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing one embodiment of the present invention, FIG. 2 is a partially cutaway front view thereof, and FIG.
FIGS. 4 and 5 are cross-sectional views of FIG. 1, respectively. 10...Base, 12...Fixed Jiyo, 16...
...Support part, 22...Movable jaw, 30...Spindle (male thread member), 34...Handle part (action part), 36...Female thread part, 38...Engagement member, 4
4... Compression coil spring (biasing means), 46... Operation pin (operation member).

Claims (1)

[Claims for Utility Model Registration] A fixed jaw fixed to a base and a fixed jaw slidable on the base so as to be able to approach and move away from the fixed jaw. a movable jaw for clamping an object; a hollow supporting part fixedly provided on the base so as to face the fixed jaw across the movable jaw; and a hollow supporting part that is movable in the axial direction passing through the supporting part. a rod-shaped male screw member, which is rotatably connected to the movable jaw at one end and whose other end serves as an acting part to which a rotational force is applied; but,
The male threaded member is supported by the supporting portion so as to be rotatable about an axis parallel to the axis thereof, and has an arcuate female threaded portion in a longitudinally intermediate portion, and the female threaded portion rotates around the one axis. a longitudinal engagement member disposed so as to be able to engage with the outer circumferential surface threaded portion of the male threaded member by rotation of the member; connected to the other end in the longitudinal direction of the engagement member at an end located within the support portion;
By protruding and moving the support portion outward, the engaging member is rotated around the one axis, and the female threaded portion of the engaging member is engaged with the outer peripheral surface threaded portion of the male threaded member. On the other hand, an operating member that rotates the engaging member in the opposite direction about the one axis by pushing the support portion inward, and releases the engaging member from the male threaded member; The female threaded portion of the engagement member is constantly biased in the direction of protruding and moving the support portion outward, so that the female threaded portion of the engagement member is constantly engaged with the threaded portion of the outer circumferential surface of the male threaded member during non-push movement operation of the operating member. A vise device comprising: biasing means for bringing the two together.