JP2547350Y2 - Vise device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vice device for gripping a workpiece.

[0002]

2. Description of the Related Art A vice device is disclosed in Japanese Utility Model Laid-Open No. 2-900.
Japanese Patent Application Laid-open No. 62-62, for example. As shown in FIG. 7, the female screw block 2 is screwed into the clamp screw 1 connected to the movable vice portion, and the female screw block 2 is slidably inserted in the vise bracket 3 in the front-rear direction. ing. The vise bracket 3 is screwed with a male screw 4 that abuts the female screw block 2 from behind. The pitch of the male screw 4 is larger than that of the clamp screw 1.

In order to use the vice device, the clamp screw 1 is turned to move the movable vice portion close to the workpiece, and then the male screw 4 is turned. Male screw 4
Since the pitch is larger than that of the clamp screw 1, the movable vice portion moves quickly and presses the workpiece against the fixed vise portion.

[0004]

However, in the above-mentioned conventional vise device, since the female screw block 2 and the male screw 4 are arranged in series, the width of the vise bracket 3 becomes large, and However, there is a problem that the size becomes large.

[0005]

Means for Solving the Problems To achieve the above object,
In the present invention, the clamp handle 15 is fixed at one end.
The other end has a movable vise12To which is connected
The13When, With the clamp screw 13Female screw to screw16a
And an internal thread16aGreater than the pitch of
Kinase pitch male screw16bVise on the outer circumference
To14No rotation insideNohFirst screw cylinder held16
And the first screw cylinder16Male screw16bFemale screwed with
screw17bOn the inner periphery and the vise bracket
14Inner circumference bearingOn surface 24Sliding contact surface to slide17cThe outer circumference
The first screw cylinder16And the vise bracket
14And a tightening handle at one end2
9Is stuckBy operating the tightening handle 29,
Between the first screw cylinder 16 and the vise bracket 14
Is turned, and the first screw cylinder 16 is
The entire clamp screw 13 based on the switchSecond ne
The vice device configuration including the cylinder 17 is adopted.
You.

[0006]

The first screw tube and the second screw tube overlap in the vise bracket in the radial direction. For this reason, the width of the vise bracket is reduced, and the vise device is correspondingly reduced in size and weight.

When clamping a workpiece, a clamp screw is turned. The first screw cylinder screwed with the clamp screw is held in the vise bracket so as to be non-rotatable and movable in the central axis direction, so that the clamp screw advances toward the fixed vise while rotating. Therefore, the movable vice portion approaches the workpiece.

Next, the second screw cylinder is turned. The second screw cylinder rotates along the bearing surface of the vise bracket. First
Since the screw cylinder cannot rotate, the screw cylinder advances in the vise bracket with the clamp screw. Since the pitch of the male screw on the outer circumference of the second screw cylinder is larger than the pitch of the female screw on the inner circumference, the first screw cylinder advances more quickly than when the clamp screw is turned. For this reason, the movable vice portion quickly presses the workpiece to the fixed vise portion.

To release the workpiece, the second screw cylinder is turned in the opposite direction. Therefore, the workpiece can be quickly removed from the vise device.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a vice device according to an embodiment of the present invention;
Is mounted on the cutting machine as shown in FIG.

This cutting machine has a bed 5 on which a circular saw 7 rotated by a motor 6 is provided. The circular saw 7 is rotatable up and down around a support shaft 8, and is lowered toward the bed 5 by holding the handle 9 and pushing it down.

A vice device 10 is provided at a location on the bed 5 where the circular saw 7 descends. As shown in FIG. 1, the vice device 10 includes a fixed vise portion 11 and a movable vise portion 12. The fixed vice section 11 is fixed on the bed 5, and the movable vise section 12 is mounted on the bed 5 so as to be able to advance and retreat with respect to the fixed vice section 11.

The movable vice 12 has a clamp screw 13
Are rotatably connected to each other, and an intermediate portion of the clamp screw 13 is supported by a vise bracket 14. A clamp handle 15 for rotating the clamp screw 13 is fixed to the rear end of the clamp screw 13.

Clamp screw 13 and vise bracket 14
Are connected via a mechanism as shown in FIGS. That is, as shown in FIG. 3, the first screw cylinder 16 is screwed to the clamp screw 13,
A second screw cylinder 17 is screwed around the outer periphery of the screw cylinder 16, and the second screw cylinder 17 is rotatably slidably in the vise bracket 14.

The first screw cylinder 16 has a female screw 16a on the inner periphery for screwing with the clamp screw 13, and has a male screw 16b on the outer periphery with a pitch larger than the pitch of the female screw 16a.

The rear end of the first screw tube 16 is in contact with a step 17a in the second screw tube 17, and the front end is a tube portion 18 without the male screw 16b. I have.
A keyway 19 extending along the center axis direction of the male screw 16b is formed at one or a plurality of locations on the outer periphery of the cylindrical portion 18. A key 20 is engaged with the key groove 19, and the key 20 is formed integrally with an end plate 22 fixed to a front end of the vise bracket 14 with a fixing screw 21.

As a result, the first screw cylinder 16 cannot be rotated in the vise bracket 14, and when the clamp screw 13 is turned in any direction with the clamp handle 15, the clamp screw 13 is moved in the direction of its central axis. Can be moved. Then, the movable vice section 12 advances and retreats with respect to the fixed vice section 11.

As shown in FIG. 5, the end plate 22 has a circular hole 23 surrounding the cylindrical portion 18, and prevents the first screw cylinder 16 from coming out of the vise bracket 14 together with the key 20. ing.

The second screw cylinder 17 is inserted between the first screw cylinder 16 and the vise bracket 14, as shown in FIG. A female screw 17b screwed with the male screw 16b of the first screw cylinder 16 is provided on the inner periphery, and a sliding contact surface 17c rotatably sliding on the bearing surface 24 on the inner periphery of the vice bracket 14 is provided on the outer periphery. Have.

The front end of the second screw cylinder 17 and the end plate 22
A compression coil spring 25 for constantly urging the second screw cylinder 17 rearward is inserted into the cavity. The rear end of the second screw cylinder 17 forms a cylindrical portion 27 via a step 26, and projects rearward from the vise bracket 14. Step 26
Is in contact with an inner flange 28 provided at the rear of the vise bracket 14, so that the second screw cylinder 17
Are designed not to come out of the vise bracket 14 rearward.

As shown in FIGS. 2 to 6, a lever-shaped tightening handle 29 is fixed to the rear end of the cylindrical portion 27 of the second screw cylinder 17 by a fixing screw 30. The tightening handle 29 attempts to rotate the second screw cylinder 17 by its own weight, but the compression coil spring 25
Since the screw cylinder 17 is pressed against the vise bracket 14, careless rotation of the second screw cylinder 17 is prevented.
Further, in order to regulate the rotation range of the tightening handle 29,
A projection 31 is provided on the outer periphery of the fixing portion, and two stoppers 32,
33 are provided. The tightening handle 29 is in the form of a lever.
The tightening force can be increased by increasing the torque more than in the case of tightening at 5. Therefore, a strong clamping force can be obtained even when a strong clamping force is required, such as with a tip saw, and safe and accurate cutting can be performed.

When the tightening handle 29 is held and turned in any direction, the second screw cylinder 17 rotates, and the first screw cylinder 16 moves forward and backward while holding the clamp screw 13. Since the pitch of the male screw 16b of the first screw cylinder 16 is larger than the pitch of the female screw 16a, the tightening handle 2
The amount of movement of the movable vice portion 12 by the operation 9 is larger than when the clamp screw 13 is turned.

Next, the operation of the vice device 10 will be described. First, at the time of use, the movable vise 12 is moved to a position near the workpiece applied to the fixed vise portion 12 by turning the clamp handle 15. Thereafter, the tightening handle 29 is turned to rotate the second screw cylinder 17. As a result, the first screw cylinder 16 advances with the clamp screw 13 based on the pitch of the male screw 16b, and the movable vise 12 moves more quickly to fix the workpiece to the fixed vice 1.
1 will be pressed.

Thereafter, the workpiece between the fixed vice portion 11 and the movable vice portion 12 is cut by the circular saw 7. When releasing the workpiece, the tightening handle 29 may be turned in the opposite direction, and the movable vice portion 12 quickly separates from the workpiece to release the workpiece. If the workpieces have the same thickness, the workpiece can be attached and detached only by operating the tightening handle 29 from the next time.

[0025]

As described above, the present invention employs a configuration in which the first screw cylinder and the second screw cylinder are radially overlapped in the vise bracket, so that the width of the vise bracket is reduced. The vice device can be reduced in size and weight accordingly.

[Brief description of the drawings]

FIG. 1 is an elevation view of a cutting machine provided with a vice device according to the present invention.

FIG. 2 is a partially cutaway plan view of a main part of the vice device.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a partially cutaway side view of a main part of the vice device.

FIG. 5 is a sectional view taken along line VV in FIG. 4;

FIG. 6 is a sectional view taken along line VI-VI in FIG.

FIG. 7 is a longitudinal sectional view of a main part of a conventional vise device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Vise apparatus 12 ... Movable vise part 13 ... Clamp screw 14 ... Vise bracket 16 ... First screw cylinder 16a ... Female screw 16b ... Male screw 17 ... Second screw cylinder 17b ... Female screw 17c ... Sliding contact surface 24 ... Bearing surface

Claims (1)

(57) [Scope of request for utility model registration] 1. A clamp handle is fixed to one end, a clamping screw which is movable vice part is connected to the other end,該Ku
And has on the outer periphery a male thread of larger pitch than the pitch of the female screw, the first screw cylinder held in rotation non ability in vice bracket which has on the inner periphery of Ranpuneji screwed to the female screw, The female screw of the first screw cylinder has a female screw on the inner circumference and a sliding contact surface that slides on a bearing surface of the inner circumference of the vice bracket on the outer circumference. is fixed is Zoshime for handle at one end while being inserted between the vice bracket, operation of the handle for bulking clamping
Between the first screw cylinder and the vise bracket
To rotate the first screw cylinder based on the pitch of the male screw.
A second screw cylinder that moves the clamp screw together .