JPH11114840A - Stock vice - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the simple movement and the fixing of a movable jaw and to sufficiently fasten an elastic work. SOLUTION: This stock vice has a fixed jaw 2 and a movable jaw 4 on a stock vice body 3. A locking member 6 is provided on the lower end of a bolt downwardly penetrated with a declined state from the movable jaw 4. Fastening the bolt forms a first locking surface part on the bottom surface of the stock vice body having the abutted top surface of the locking member 6, and a second locking surface part lockable with the first locking surface part on the top surface of the locking member. A spring 20 for upwardly energizing the bolt is set on the shaft of the bolt located below the head part of the upwardly projected bolt from the movable jaw 4. A pressing intermediary member 19 intervenes between the upper end of the spring 20 and the upper end of the bolt. A ring material 21 intervenes between the lower end of the spring 20 and the opening edge of a through hole.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vice capable of easily moving a movable jaw of a vise for a machine tool to a desired position and easily locking the movable jaw at that position.

[0002]

2. Description of the Related Art As a vice capable of easily moving a movable jaw, the applicant of the present invention has disclosed Japanese Patent Application Laid-Open No. 7-195276.
As disclosed in Japanese Patent Application Laid-Open No. 5-34892 / 1993, a bolt is inserted downward from a movable jaw with its lower end inclined toward the fixed jaw, and a locking member is provided at the lower end of the bolt to secure the bolt. The upper surface of the locking member can be brought into contact with the back surface of the vice body by tightening,
A first locking surface portion is provided in which a ridge and a groove extending in a direction intersecting with the moving direction of the movable jaw are alternately and repeatedly formed in the moving direction of the movable jaw. It is known that a second locking surface portion having a concave groove and a convex line which can be engaged with the convex line and the concave groove of the stop surface is formed.

[0003]

However, since the above-mentioned vice has a short moving length to move forward when the bolt of the movable jaw is tightened, when a work having elasticity is tightened, for example, a curved thin plate is bent in the thickness direction. It was difficult to tighten sufficiently when tightening.

Accordingly, an object of the present invention is to provide a vice in which the movable jaw can be easily moved and fixed and which can sufficiently tighten an elastic work.

[0005]

Means for Solving the Problems The present invention has been proposed to achieve the above object, and the invention according to claim 1 has a fixed jaw and a movable jaw on an upper part of a vise body,
A bolt is inserted into the insertion hole formed in the movable jaw with the lower end inclined toward the fixed jaw, and a locking member is provided at the lower end of the bolt, and the upper surface of the locking member is tightened by tightening the bolt. The vice body can be brought into contact with the back surface, and on the back surface of the vice body, a ridge and a groove extending in a direction intersecting with the moving direction of the movable jaw are alternately formed in the moving direction of the movable jaw. A vice provided with a first locking surface portion and a second locking surface portion having a concave groove and a convex ridge on the upper surface of the locking member, the concave groove being engageable with the convex ridge and the concave groove of the first locking surface portion; An urging member for urging the bolt upward is fitted on a shaft of the bolt below the upper end of the bolt protruding upward from the insertion hole, and is pressed between the upper end of the urging member and the upper end of the bolt. A ring member is provided between the lower end of the urging member and the opening edge of the insertion hole. Each of the pressing intervening members is interposed, the through-hole penetrating through the shaft of the bolt, an urging member abutting surface with which the upper end of the urging member abuts, an abutting receiving surface receiving the bolt tightening force, and a bolt tightened. The ring member is provided with a pressing surface that abuts on the movable jaw, and the ring member has a through hole that penetrates the shaft of the bolt, an urging member abutting upper surface with which the lower end of the urging member abuts, and a diameter of the ring member decreases as it descends. And a tapered lower surface contacting an opening edge of the insertion hole.

According to a second aspect of the present invention, a fixed jaw and a movable jaw are provided at an upper portion of a vise body, and a bolt is inserted into an insertion hole formed in the movable jaw with a lower end inclined toward the fixed jaw. Then, a locking member is provided at the lower end of the bolt so that the upper surface of the locking member can be brought into contact with the back surface of the vice body by tightening the bolt, and on the back surface of the vice body, A first locking surface portion is provided in which extending protruding ridges and concave grooves are alternately formed in the direction of movement of the movable jaw, and a first locking surface portion is provided on the upper surface of the locking member. A biasing member for biasing the locking member downward is fitted to a shaft of a bolt protruding downward from the insertion hole in the vise having the second locking surface portion having a concave groove and a ridge that can be fitted. And a ring material is fitted between the biasing member and the movable jaw, The ring member has a through hole that penetrates the bolt shaft, an urging member contact lower surface where the upper end of the urging member contacts, and a tapered upper surface that contracts in diameter as it rises and contacts the opening edge of the insertion hole. A vise characterized by being provided.

According to a third aspect of the present invention, a fixed jaw and a movable jaw are provided at an upper portion of a vise body, and a bolt is inserted into an insertion hole formed in the movable jaw with a lower end inclined toward the fixed jaw. Then, a locking member is provided at the lower end of the bolt so that the upper surface of the locking member can be brought into contact with the back surface of the vice body by tightening the bolt, and the back surface of the vice body extends in a direction intersecting the moving jaw's forward and backward directions. A first locking surface portion in which existing ridges and grooves are alternately and repeatedly formed in the direction of movement of the movable jaw, and the upper surface of the locking member is engaged with the ridges and the grooves of the first locking surface portion. A biasing member for biasing the locking member downward is fitted to a shaft of a bolt between the locking member and the movable jaw in a vise having a second locking surface portion having a possible concave groove and a ridge. And a ring material is fitted between the biasing member and the locking member, A through hole penetrating the shaft of the bolt,
A vise comprising a biasing member abutting upper surface with which the lower end of the biasing member abuts, and a tapered lower surface abutting on the opening edge of the insertion hole of the locking member, the diameter of which decreases as it descends. is there.

According to a fourth aspect of the present invention, the opening edge of the insertion hole with which the tapered surface of the ring material abuts is chamfered so as to correspond to the tapered surface of the ring material. A vise according to any of the above.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of a state in which a work W of the first embodiment of the vise 1 is tightened, FIG. 2 is a cross-sectional view of a vice 1 shown in FIG. 1 in a loosened state, and FIG.
FIG. 4 is a sectional view taken along line BB of FIG. The vice 1 shown in these drawings is a vice body 3 having a fixed jaw 2.
And a movable jaw 4 movable on the vice main body 3, a bolt 5 for fastening the movable jaw 4 to the vise main body 3 side, a locking member 6, and the like.

The vice body 3 has a fixed jaw 2 at one end of the upper surface.
Is provided upward, a sliding surface 7 is formed on the upper surface from the fixed jaw 2 to the other end, and a vertically extending long hole 8 is opened substantially at the center of the sliding surface 7. A slide groove 9 having a width greater than the width of the insertion slot 8 is formed on the lower surface to be opened, and the locking member 6 can be moved in the slide groove 9 in a fitted state. And the bottom of this slide groove 9,
That is, the first locking surface portion 10 is formed on the back surface of the vice main body 3 with which the locking member 6 contacts.

As shown in FIG. 4, the first locking surface portion 10 has a ridge 11 having a substantially triangular cross section extending in a direction perpendicular to the direction in which the movable jaw 4 advances and retreats (the width direction of the vice body 3). This is a fine jagged surface in which grooves 12 are alternately and repeatedly formed at the same intervals. Since the distance between the ridge 11 and the concave groove 12 is the minimum movement distance of the movable jaw 4, it is preferable to set the pitch to a small pitch. Easy. It is desirable that the ridges 11 and the grooves 12 of the first locking surface 10 are plastically processed by using a press machine.

A movable jaw 4 that moves on the vice body 3
Are downward projections 1 that can be fitted to the sliding surface 7 of the vice body 3.
3 is provided on the lower surface, and the pressing surface 14 on the fixed jaw 2 side stands vertically to the moving direction, and is located parallel to the receiving surface 15 of the fixed jaw 2 and located on the opposite side to the pressing surface. Slope 16
Is provided with an insertion hole 17 inclined downward to the fixed jaw 2 side. The insertion hole 17 has a diameter sufficiently larger than the shaft 5 a of the bolt 5, and has a margin between the inserted bolt 5 and the bolt 5 so as to be movable in the front-rear direction. The insertion hole 17 may have a circular cross section or may have an elliptical shape whose major axis is the moving direction of the movable jaw 4.

The bolt 5 inserted into the insertion hole 17 of the movable jaw 4 has a male screw 5b at the tip (lower end) of the shaft 5a.
The upper end of the shaft 5a is provided with a round head 5c having a diameter larger than the diameter of the shaft 5a, and a handle 18 is provided. When the bolt 5 is to be inserted into the insertion hole 17 of the movable jaw 4, the pressing intervening member 19 is fitted from the distal end, then the coil spring 20 as the urging member is fitted, and then the ring After the member 21 is fitted, it is inserted into the insertion hole 17 of the movable jaw 4.

The pressing intervening member 19 includes the coil spring 2
0 and a cylindrical body with a ceiling having an empty space capable of storing the ring material 21 therein, and a through hole through which the shaft 5a of the bolt 5 penetrates is formed in the center of the ceiling. The lower surface of the ceiling functions as an abutting member abutting surface against which the upper end of the coil spring 20 abuts, as a contact receiving surface that abuts on the lower surface of the head 5c of the bolt 5, and a ring-shaped surface at the lower edge of the cylindrical body. Functions as a pressing surface that contacts the movable jaw 4.

The ring member 21 is a thick circular plate member large enough to fit into the hollow portion of the pressing interposition member 19, and has a through hole in the center through which the shaft 5a of the bolt 5 penetrates. Functions as an urging member contact upper surface with which the lower end of the coil spring 20 abuts, and a lower surface is formed with a tapered lower surface 24 whose diameter decreases as it descends.

The pressing intervening member 19 having the above configuration,
When the coil spring 20 and the ring member 21 are fitted on the shaft 5a of the bolt 5, and then the shaft 5a of the bolt 5 is inserted into the insertion hole 16 of the movable jaw 4 from above, the ring member 21 is inserted into the insertion hole 17a. The movable jaw 4 passes through the insertion slot 8 of the vice body 3 in a state where the shaft 5a is inclined toward the fixed jaw 2 side. When the bolt 5 is rotated, the male screw portion 5b of the shaft 5a projecting downward can be screwed into the female screw hole of the locking member 6. In this state, the ring member 21 is urged downward by the elastic restoring force of the compressed coil spring 20 to come into contact with the insertion hole opening edge of the movable jaw 4, and the pressing intervening member 19 is urged upward to move the head 5c, the bolt 5 is urged upward, and a gap is created between the pressing surface of the pressing interposition member 19 and the inclined surface 16 of the movable jaw 4 (FIG. 2).

The locking member 6 is a block having a substantially trapezoidal cross section set to have a width fitting into the slide groove 9 of the vice main body 3, and a recess 25 formed on a surface corresponding to the trapezoidal inclined upper surface. And a female screw hole 26 is opened in this recess 25,
The male screw portion 5b of the bolt 5 is screwed into the female screw hole 26. When the bolt 5 is tightened, a second locking surface 27 is formed on the upper surface of the locking member 6 that comes into contact with the back surface of the vice main body 3.

The second locking surface 27 has a concave groove 28 which can be engaged with the ridge 11 of the first locking surface 10 and a convex ridge 29 which can be engaged with the concave groove 12 of the first locking surface 10. Are alternately and repeatedly formed. It is desirable that the locking member 6 be formed by molding a steel material by lost-wax precision casting and performing heat treatment to increase the hardness of the surface.

Next, the operation of the vice 1 of the present invention having the above-described configuration will be described. When the handle 18 is turned in a direction to loosen the bolt 5, the tightening of the movable jaw 4 and the locking member 6 to the vice body 3 is loosened, and the screwing depth between the male screw portion 5b and the female screw hole 26 of the locking member 6 is reduced. Because it becomes shallow
The bolt 5 is gradually raised by the bias of the coil spring 20 described above. However, even if the bolt 5 is gradually raised, the screwed locking member 6 does not move and the second locking surface 27 is maintained in the state locked to the first locking surface on the back surface of the vise body 3. . Therefore, only by loosening the bolt 5, the locking member 6 does not freely move back and forth. Therefore, when the vise 1 is used in an inclined state, the movable jaw 4 does not move by its own weight even if the tightening is loosened, and the operation is easy and safe.

In this state, the coil spring 20
When the bolt 5 is manually pushed in against the urging force of the above, the locking member 6 is lowered, so that the first locking surface 1
The groove 28 and the ridge 29 of the second locking surface 27 of the locking member 6 are removed from the zero ridge 11 and the groove 12. Therefore,
When the movable jaw 4 is moved, the movable jaw 4 can be easily moved back and forth by hand while pushing the handle 18.

On the other hand, when the work W is to be tightened, the work W is inserted between the fixed jaw 2 and the movable jaw 4 and is brought into close contact with the receiving surface 15 of the fixed jaw 2. When the jaw 4 is advanced and the pressing surface 14 is brought into contact with the work W, and the pushing of the handle 18 is stopped in this state, the bolt 5
Rises, whereby the second locking surface 27 of the locking member 6 is locked to the first locking surface 10 on the back surface of the vice main body 3.

Next, when the handle 18 is turned in the direction of tightening the bolt 5 at this position, the male screw portion 5b of the bolt 5 is screwed into the female screw hole 26 of the locking member 6 gradually deeper.
Descends obliquely to the fixed jaw 2 side, the pressing interposition member 1
9 descends and compresses the coil spring 20, and the ring member 21 which has received the compressive force presses the movable jaw 4 in the forward direction. Therefore, when the movable jaw 4 is pressed forward by a force exceeding the tightening reaction force (reaction force including elastic force) of the work W, the movable jaw 4 moves forward and starts to tighten the work W. When the bolt 5 is further turned, the pressing interposition member 19 is further lowered, and finally the lower end pressing surface of the pressing interposition member 19 comes into contact with the inclined surface 16 of the movable jaw 4. In this state, bolt 5
Is further turned, the movable jaw 4 moves forward in response to the lowering of the bolt 5 with the pressing surface of the pressing interposition member 19 directly in contact with the movable jaw 4, whereby the work W can be firmly clamped. (FIG. 1).

When tightening the work W, the bolt 5
Is not changed, but there is a sufficient gap between the outer peripheral surface of the shaft 5 a of the bolt 5 and the inner peripheral surface of the insertion hole 17. Since the movable jaws 4 are abutted in a relatively movable state, even if the bolt 5 is not moved, the movable jaw 4 moves forward without any trouble when pressed by the pressing interposition member 19. In addition, the ring material 21
Since the lower surface is tapered, it is pressed by the opening edge of the insertion hole 17 and slightly rises while compressing the coil spring 20.

When the work W is to be removed after the machining is completed, as described above, the bolt 5 is turned in the loosening direction, and then the handle 18 is pushed in, and the second locking surface 2 of the locking member 6 is pressed.
The movable jaw 4 can be easily retracted because the 7 is disengaged from the first locking surface portion 10 on the back surface of the vise body 3, and the workpiece W can be removed from between the movable jaw 4 and the fixed jaw 2 by this retraction. .

Next, a second embodiment of the vise 1 shown in FIG. 5 will be described. Since the basic structure and operation of the vise 1 are the same as those of the first embodiment, different structures and operations will be described. As a different configuration, a hexagonal bolt (a bolt 5 having a hexagonal head 5c shape) is used as the bolt 5, and a hole 31 having an inner diameter larger than the insertion hole 17 is formed on the inclined surface 16 of the movable jaw 4 to open the hole. Large diameter hole 3
A step is formed at the boundary between the first hole 1 and the insertion hole 17 so that
A ring material 21 and a coil spring 20 are housed therein, and the pressing intervening member 19 is a washer-shaped plate material. In the washer-shaped pressing intervening member 19, the center hole is a through hole for the bolt 5, the upper surface is a contact receiving surface, and the lower surface is a biasing member contact surface. As shown in FIG. 6A, the edge of the opening may be chamfered (as an inclined surface) at the step between the insertion hole 17 of the movable jaw 4 and the large-diameter hole 31 as shown in FIG. Then, FIG.
As shown in (1), a small chamfer may be formed on the outer peripheral edge of the lower surface of the ring material 21.

The operation of the vise 1 is the same as that of the first embodiment. In the present embodiment, the bolt 5 and the handle 18 do not protrude greatly from the movable jaw 4, which is convenient when the space is small. When turning the bolt 5, a spanner is hung on the head 5c and turned.

Next, a third embodiment of the vise 1 shown in FIG. 7 will be described. The vise body 3 of the vise 1 has the same configuration as that of the first and second embodiments. In the movable jaw 4, the large-diameter hole 31 is formed above the insertion hole 17 in the second embodiment, but the movable jaw 4 is formed with the large-diameter hole 31 ′ (or recess) below the insertion hole 17 in this embodiment. The ring material 21 and the upper part of the coil spring 20 are housed in the large diameter hole 31 '. The locking member 6 has the same configuration in which the second locking surface portion 27 is formed on the upper surface and the female screw hole 26 for screwing the bolt 5 is opened, but the cross section in which the lower portion of the coil spring 20 enters the upper surface is substantially reversed. A triangular recess 32 is formed. The pressing interposition member 19 has a washer shape as in the second embodiment, and the upper surface is a contact receiving surface, and the lower surface is a biasing member contact surface. In addition, the ring material 21 has an upper surface,
The upper surface is a tapered surface whose diameter is reduced as it rises, and the flat lower surface is an abutting member contact surface. The bolt 5 uses a hexagonal bolt as in the second embodiment.

In the third embodiment, the bolt 5 is inserted into the insertion hole 17 of the movable jaw 4 from above, and the ring member 21 is attached to the shaft 5a protruding from the insertion hole 17 with the tapered upper surface facing upward. The coil spring 20 is fitted next to the ring member 21, and the male screw portion 5 b at the tip protruding from the coil spring 20 is fitted into the female screw hole 26 of the locking member 6.
To screw. When the lower end of the bolt 5 is screwed into the locking member 6 to an appropriate depth, the coil spring 20 is compressed, and the elastic restoring force of the coil spring 20 causes the upper surface of the ring member 21 to move through the insertion hole 17 of the movable jaw 4. The locking member 6 comes into contact with the opening edge and is urged downward by the reaction force at this time. Therefore, when the screwing of the bolt 5 is shallow, the second locking surface portion 27 on the upper surface of the locking member 6 is disengaged from the first locking surface portion 10 of the vice main body 3, so that the vice body 3 can be freely advanced and retracted. For this reason, in this state, the movable jaw 4 can be freely moved to a desired position only by lightly pushing or pulling with the hand.

When tightening the work W,
The work W is inserted between the fixed jaw 2 and the movable jaw 4 and brought into close contact with the receiving surface 15 of the fixed jaw 2, and the bolt 5 is turned in this state. When the bolt 5 is turned, the male screw portion 5b of the bolt 5 is screwed into the female screw hole 26 of the locking member 6 gradually deeper, so that the locking member 6 gradually rises against the urging force of the coil spring 20, When further turned, the second locking surface 27 of the locking member 6 is locked to the first locking surface 10 on the back surface of the vice main body 3.

Next, at this position, when the bolt 5 is turned in the direction in which the bolt 5 is tightened, the male screw portion 5b of the bolt 5 is gradually screwed into the female screw hole 26 of the locking member 6, and the head of the bolt 5 Since the portion 5c descends obliquely to the fixed jaw 2 side, the pressing intervening member 19 presses the movable jaw 4 in the forward direction. Therefore, the movable jaw 4 moves forward and starts to tighten the work W. When the bolt 5 is further turned, the pressing interposition member 19 is further lowered, and the work W can be firmly clamped (FIG. 7).

When tightening the work W, the bolt 5
Is not changed, but there is a sufficient gap between the outer peripheral surface of the shaft 5 a of the bolt 5 and the inner peripheral surface of the insertion hole 17. The movable jaw 4 is pushed forward by the pressing intervening member 19 without any trouble even if the bolt 5 is not moved. In addition, the ring material 21
The contact position of the upper surface of the taper with the opening edge of the insertion hole changes, and the coil spring 20 is slightly lowered while compressing it.

When the work W is to be removed after the processing is completed, as described above, when the bolt 5 is turned in the loosening direction, the locking member 6 is lowered by the urging force of the coil spring 20 and the second engaging member on the upper surface is removed. Since the stop surface portion 27 comes off the first locking surface portion 10 on the back surface of the vice main body 3, the movable jaw 4 can be easily retracted. Therefore, the work W can be removed from between the movable jaw 4 and the fixed jaw 2 by this retreat.

Next, a fourth embodiment of the vise 1 shown in FIG. 8 will be described. The vice body 3 of the vise 1 has the same configuration as that of the first, second, and third embodiments.
The movable jaw 4 has the same configuration as that of the third embodiment, and has a large-diameter hole 31 '(or concave portion) formed below the insertion hole 17'. In the present embodiment, the upper part of the coil spring 20 and the ring member 21 are stored in the large-diameter hole 31 ′. That is, the ring member 21 is provided in a state of abutting on the locking member 6.

The locking member 6 has a second locking surface 27 formed on the upper surface and a recess 32 having a substantially inverted triangular cross section as in the third embodiment, but the bolt 5 is screwed. The hole is a simple through hole 34 that does not form a female screw. The size of the through hole 34 is set so that the shaft 5a of the bolt 5 can move in the front-rear direction inside. Further, on the lower surface of the locking member 6, a rotation preventing portion 35 for fitting the head 5c of the bolt 5 to stop free rotation of the bolt 5 is formed. The ring member 21 is upside down from that of the third embodiment, and the flat upper surface is the upper surface in contact with the urging member, and the lower surface is the tapered lower surface 24 whose diameter is reduced as it rises. In addition,
The pressing intervening member 19 has a washer shape as in the third embodiment. As the bolt 5, a hexagonal bolt is used as in the second and third embodiments, but in this embodiment, the head 5c is used.
Is used with the male screw part 5b facing upward.

That is, in the fourth embodiment, the locking member 6
The bolt 5 is inserted from below into the through hole 34 of
The ring member 21 is fitted from above onto the shaft 5a protruding from the shaft member 4 with the tapered lower surface 24 facing down, the coil spring 20 is fitted next to the ring member 21, and the shaft 5a protruding from the coil spring 20 is fitted. Is inserted into the insertion hole 17 'of the movable jaw 4 from below, and the nut 36 is screwed into the male screw portion 5b through the washer-shaped pressing interposition member 19 at the tip of the shaft 5a protruding from the insertion hole 17'.

When the nut 36 is screwed into the male screw portion 5b of the bolt 5, the locking member 6 in contact with the head 5c and the movable jaw 4 in contact with the nut 36 through the pressing intervening member 19.
Is tightened to compress the coil spring 20, and the elastic restoring force of the coil spring 20 causes the tapered lower surface 24 of the ring member 21 to move through the insertion hole 3 of the locking member 6.
4, and the locking member 6 is urged downward. Therefore, when the screwing position of the nut 36 is high, the second locking surface 27 on the upper surface of the locking member 6 is disengaged from the first locking surface 10 of the vice body 3, and the movable jaw 4 can freely advance and retreat. become. For this reason, in this state, the movable jaw 4 can be freely moved to a desired position only by lightly pushing or pulling with the hand.

When the work W is to be tightened, the work W is inserted between the fixed jaw 2 and the movable jaw 4 and brought into close contact with the receiving surface 15 of the fixed jaw 2, and in this state, the nut 36 is turned. When the nut 36 is turned, the bolt 5 is raised, so that the locking member 6 is gradually raised against the urging force of the coil spring 20, and when the nut 36 is further turned, the second locking surface 2 of the locking member 6 is rotated.
7 locks to the first locking surface portion 10 on the back surface of the vice main body 3.

Next, when the nut 36 is turned in the tightening direction at this position, the nut 36 pushes the movable jaw 4 obliquely downward to advance the movable jaw 4 and compress the coil spring 20. When the nut 36 is further turned, the movable jaw 4 advances further to start tightening the work W, and when the nut 36 is further turned, the work W can be firmly clamped (FIG. 8).

Although the position of the locking member 6 does not change when the work W is tightened, there is sufficient space between the outer peripheral surface of the shaft 5 a of the bolt 5 that advances with the movable jaw 4 and the inner peripheral surface of the insertion hole 34. Since there is a gap, the ring material 21 is
Since the movable jaw 4 and the bolt 5 are pressed by the nut 36 without trouble even if the locking member 6 is immovable, the movable jaw 4 moves forward without any trouble because the movable jaw 4 is in contact with the lower opening edge 4 in a movable state. . Further, the contact position of the ring member 21 with the opening edge of the insertion hole of the tapered lower surface 24 changes, and the coil spring 2
Slightly rises while compressing zero. As described above, in the present embodiment, since the locking member 6 and the bolt 5 are always integrated, the bolt 5 may be implanted in the locking member 6.

When the work W is to be removed after the machining is completed, if the nut 36 is turned in a loosening direction, the locking member 6 is lowered by the urging force of the coil spring 20, and
Since the locking surface 27 is disengaged from the first locking surface 10 on the back surface of the vice main body 3, the movable jaw 4 can be easily retracted. Therefore, the work W can be removed from between the movable jaw 4 and the fixed jaw 2 by this retreat.

In the first, second, and third embodiments, the male screw portion 5b of the bolt 5 is provided facing downward, and the male screw portion 5b is inserted into the female screw hole 26 of the locking member 6. Although it was configured to be tightened by screwing, it is provided by implanting a bolt in a state of projecting obliquely upward from the locking member 6, and the male screw portion 5 b at the upper end is projected from the movable jaw 4 to tighten the nut. It may be screwed together. In short, the bolt 5 only needs to be able to tighten the movable jaw 4 and the locking member 6.
Further, in each embodiment, the biasing member is provided with the coil spring 2.
Although 0 was used, the present invention is not limited to this, and may be an elastic body such as an elastic rubber cylinder.

[0042]

According to the present invention as described above, the following effects can be obtained. According to the first aspect of the present invention, the urging member for urging the bolt upward is fitted on the shaft of the bolt below the upper end of the bolt protruding upward from the insertion hole of the movable jaw. The pressurizing member is interposed between the upper end of the bolt and the upper end of the bolt, and the ring member is interposed between the lower end of the urging member and the opening edge of the insertion hole. When the bolt is tightened, the urging member is compressed and the movable jaw moves forward. When the bolt is further tightened, the pressing intervening member contacts the movable jaw and advances the movable jaw, so that the movable jaw can be moved back and forth longer without changing the position of the locking member and the bolt. it can. Then, even if the movable jaw moves forward with the same bolt position, the ring member is interposed between the urging member and the bolt insertion hole to smooth the movement. Therefore, even when an elastic work is sandwiched, the work can be firmly fixed.

Even when the bolt is loosened, the state in which the second locking surface of the locking member is engaged with the first locking surface of the vice body can be maintained by the urging of the urging member. Therefore, when using the vise at an angle,
The movable jaw can be prevented from moving under its own weight when the tightening is loosened, and the usability is good. The second locking surface of the locking member is disengaged from the first locking surface of the vice body by simply pushing the bolt in against the bias of the biasing member, so that the movable jaw can be easily moved. It is.

According to the second aspect of the present invention, the urging member for urging the locking member downward is fitted on the shaft of the bolt protruding downward from the insertion hole of the movable jaw, and the urging member is fitted to the shaft. 2. A ring material is fitted between the movable jaw and the movable jaw.
Similarly, the movable jaw can be moved back and forth longer without changing the position of the locking member and the bolt than before, and even if the movable jaw moves forward with the same bolt position, the ring A member is interposed between the urging member and the bolt insertion hole to facilitate movement. Therefore, even when an elastic work is sandwiched, the work can be firmly fixed.

When the bolt is loosened, the second locking surface of the locking member is disengaged from the first locking surface of the vice body by the urging of the urging member. Therefore, even if lubricating oil or the like is adhered, the locking member is securely released, and the usability is good when the movable jaw is frequently moved and used.

According to the third aspect of the present invention, the urging member for urging the locking member downward is fitted on the shaft of the bolt between the locking member and the movable jaw. Since the ring material is fitted between the locking member and the movable jaw, the longitudinal movement length can be made longer than before without changing the position of the locking member. Even if the movable jaw moves forward, the ring member is interposed between the urging member and the insertion hole of the locking member to make the movement smooth. Therefore,
Even when holding an elastic work, it can be firmly fixed.

When the bolt is loosened, the second locking surface of the locking member is disengaged from the first locking surface of the vice body by the urging of the urging member, as in the second aspect of the present invention.
Therefore, even if lubricating oil or the like is adhered, the locking member is securely released, and the usability is good when the movable jaw is frequently moved and used.

According to the fourth aspect of the present invention, since the opening edge of the insertion hole with which the tapered surface of the ring material abuts is chamfered so as to correspond to the tapered surface of the ring material, relative movement between the ring material and the insertion hole is achieved. Can be performed more smoothly than when no chamfering is performed.

[Brief description of the drawings]

FIG. 1 shows a first vise in a state where a work is tightened.
It is a sectional view of an embodiment.

FIG. 2 is a cross-sectional view showing a state in which the vice shown in FIG. 1 is loosened.

FIG. 3 is a sectional view of the vise shown in FIG. 1 taken along line AA.

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

FIG. 5 is a sectional view of a second embodiment of the vise.

FIG. 6A is an enlarged view of a chamfered portion at the boundary between the insertion hole of the movable jaw and the large-diameter hole, and FIG.

FIG. 7 is a sectional view of a third embodiment of the vise.

FIG. 8 is a sectional view of a vise according to a fourth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vise 2 Fixed jaw 3 Vice main body 4 Movable jaw 5 Bolt 6 Locking member 7 Breaking sliding surface 8 Inserting long hole 9 Slide groove 10 First locking surface portion 11 Convex ridge 12 Concave groove 13 Convex portion 14 Pressing surface 15 Receiving Surface 16 Inclined surface 17 Insertion hole 18 Handle 19 Pressing intervening member 20 Coil spring 21 Ring material 24 Tapered lower surface 25 Depressed portion 26 Female screw portion 27 Second locking surface portion 28 Concave groove 29 Protrusions 31 Large diameter hole 32 Recessed hole Through hole 35 Detent part 36 Nut

Claims (4)

[Claims] 1. A vise body having a fixed jaw and a movable jaw at an upper portion thereof, and a bolt is inserted into an insertion hole formed in the movable jaw with a lower end inclined toward the fixed jaw. A locking member is provided at the lower end, and the upper surface of the locking member can be brought into contact with the back surface of the vice body by tightening a bolt, and extends on the back surface of the vice body in a direction intersecting with the movable jaw moving direction. A first locking surface portion is provided in which a convex ridge and a concave groove are alternately and repeatedly formed in the moving direction of the movable jaw, and the upper surface of the locking member is engageable with the convex ridge and the concave groove of the first locking surface portion. A biasing member for biasing the bolt upwardly on a shaft of the bolt below the upper end of the bolt protruding upward from the insertion hole in the vise having the second locking surface portion having a concave groove and a convex ridge. And press between the upper end of the biasing member and the upper end of the bolt. The standing members, respectively by interposing a ring member between the lower end and the insertion hole opening edge of the biasing member, the pressing intermediate member includes a through-hole penetrating the shaft of the bolt,
An urging member contact surface with which the upper end of the urging member abuts, a contact receiving surface that receives the bolt tightening force, and a pressing surface that comes into contact with the movable jaw when the bolt is tightened, wherein the ring member is A through hole that penetrates the shaft, an urging member contact upper surface with which the lower end of the urging member abuts, and a tapered lower surface that is reduced in diameter as it descends and contacts the opening edge of the insertion hole. Vice to do. 2. A vise body having a fixed jaw and a movable jaw at an upper portion thereof, wherein a bolt is inserted into an insertion hole formed in the movable jaw with a lower end inclined toward the fixed jaw, and a lower end of the bolt is inserted into the lower end of the bolt. A locking member is provided so that the upper surface of the locking member can be brought into contact with the back surface of the vice body by tightening a bolt, and the back surface of the vice body has a protruding ridge extending in a direction intersecting with the moving direction of the movable jaw. And a concave groove formed alternately and repeatedly in the direction of movement of the movable jaw. A first engaging surface portion is provided on the upper surface of the engaging member. In a vise having a second locking surface having a groove and a ridge, an urging member for urging the locking member downward is fitted on a shaft of a bolt protruding downward from the insertion hole, A ring material is fitted between the urging member and the movable jaw, and The material includes a through hole that penetrates the shaft of the bolt, an urging member abutting lower surface with which the upper end of the urging member abuts, and a tapered upper surface that is reduced in diameter as it ascends and abuts the opening edge of the insertion hole. A vise characterized by being. 3. A vise body having a fixed jaw and a movable jaw at an upper portion thereof, wherein a bolt is inserted into an insertion hole formed in the movable jaw with a lower end inclined toward the fixed jaw. A locking member is provided so that the upper surface of the locking member can be brought into contact with the back surface of the vice body by tightening a bolt, and the back surface of the vice body has a protruding ridge extending in a direction intersecting with the moving direction of the movable jaw. And a concave groove formed alternately and repeatedly in the direction of movement of the movable jaw. A first engaging surface portion is provided on the upper surface of the engaging member, and a concave groove engageable with the ridge and the concave groove of the first engaging surface portion. And a biasing member for biasing the locking member downwardly is fitted to a shaft of a bolt between the locking member and the movable jaw in the vice having the second locking surface portion having the protrusion and the ridge. With
A ring material is fitted between the urging member and the locking member, and the ring material has a through hole that penetrates a shaft of the bolt, an urging member contact upper surface with which a lower end of the urging member abuts, A vise having a tapered lower surface that is reduced in diameter as it descends and abuts on the opening edge of the insertion hole of the locking member. 4. The vise according to claim 1, wherein an opening edge of the insertion hole with which the tapered surface of the ring material abuts is chamfered so as to correspond to the tapered surface of the ring material.