JPS5852022Y2 - Vise device in cutting machine - Google Patents

Description

[Detailed description of the invention] The present invention relates to a vise device for a cutting machine that cuts metal bars, pipe materials, shapes, etc. with an appropriate cutter. 1 on the cutting material placement frame
A pair of vise bodies are mounted so as to be slidable along the guide portion of the mounting frame, and the pair of vice bodies are respectively screwed onto the left and right threaded portions of a screw shaft mounted on the above-mentioned mounting frame. The present invention relates to an improvement in a vice device in which the vice bodies are centrifugally moved relative to each other by rotation of the screw shaft.

This type of vise device has a pair of vise bodies whose center line (in other words, the center line of the material to be cut held between these vise bodies) is perpendicular to the diameter line of the cutter that extends in the vertical direction. Once the center positioning is done prior to cutting, there is no need to reposition it as long as the thickness of the cutter does not change. If the thickness of the cutter changes due to conditions, etc., the diameter line of the cutter will deviate from the center line of the line to be cut, so it is necessary to perform an operation to center the vise body each time.

However, in order to perform this center positioning operation with conventional vise devices, extremely troublesome work such as removing the threaded rod or the vise body from the mounting frame is required, which takes a considerable amount of time and reduces cutting work efficiency. It was lowering it.

In view of the above, the purpose of the present invention is to provide a vise device in which the center positioning operation of the vise body can be performed extremely easily. A threaded sleeve with a thread carved therein is rotatably fitted to one end of the threaded shaft but not movable in the axial direction, and the threaded sleeve is loosely fitted into a shaft hole provided in one of the horizontal frames of the mounting frame. A pair of lock nuts are screwed into the threaded sleeve while sandwiching the horizontal frame portion, and the threaded sleeve is fixed to the horizontal frame portion by the pair of lock nuts HC so that the screw sleeve can be adjusted in the axial direction. This is what I did.

An embodiment in which the present invention is applied to an angle cutting machine will be described below with reference to the drawings.

Figures 1 to 3 show the angle cutting machine. 1 is the machine base, 2 is a rectangular cylindrical support installed at the rear of the machine base 1, and 3 is a left and right F pair on the front side of the support 2. A guide rail provided, 4 a lifting frame that can be raised and lowered along the guide rails 3, 3;
Reference numeral 5 denotes a rotary table which is horizontally rotatably supported on an elevating frame 4, and this rotary table 5 is equipped with a high-speed rotary cutting grindstone 6 as a cutter, a grindstone drive motor 7, a speed reduction mechanism: 8, etc. ing.

9 is a balance weight placed inside the pillar 2;
The lifting frame 4 is suspended by a chain 13 which is wound around a sprocket 10, 11 which is attached to the upper part and a sprocket 12 which is attached to the upper part of the lifting frame 4, and whose one end is attached to the upper part of the support column 2. The ascending position will now be maintained.

Reference numeral 14 indicates a lifting/lowering operation handle, and one end of this bundle 14 is pivotally connected to a mounting rod 15 fixed to the soil part of the support 2, and the -
- The central part of the handle 14 is pivotally connected via a link 17 to a support rod 16 fixed to the lifting frame 4 side.

and 18 is a vise device that clamps and fixes the material to be cut M;
It is mounted on the machine base 1 so as to be movable in the left and right directions (up and down in FIG. 2, and left and right in FIG. 3).

This vice device 18 includes a rectangular frame-shaped workpiece placement frame 19, and the placement frame 19 has a vertical frame portion 19 as shown in FIG.
a, 19a and horizontal frame parts 19b, 19b are formed into a rectangular frame shape, and the vertical frame parts 19a, 19a are provided with guide grooves 20, 20 as vice body guide parts. The guide pieces 22, 22 of each of the pair of vise bodies 21A, 21B are slidably fitted into the vise bodies 21A and 21B (sixth
(see figure).

Inside the mounting frame 19, a screw shaft 24 is inserted through a shaft hole 23 provided at the center of one of the horizontal frame parts 19b.
19a, and this screw shaft 24 is inserted in opposite directions (
One side facing left, the other facing right) External threaded part 2
5A and 25B, one male threaded portion 25A is a female threaded portion 2717 of a projection piece 26A protruding from the lower surface of one vice main body 21A. The male threaded portions 25B of the other vice body 21B are screwed into the female threaded portions 27B of the protruding piece 26B of the other vice body 21B, so that when the screw shaft 24 is rotated in either the left or right direction, these vice bodies 21A , 21B move toward or away from each other along the vertical frame portions 19a, 19a.

As clearly shown in FIG. 5, a threaded sleeve 28 that is loosely fitted into the shaft hole 23 of the mounting frame 19 is rotatably fitted onto one end of the threaded shaft 24. Collar members 29.2 are provided at both ends of the threaded sleeve 28 to prevent axial movement of the sleeve 28 with respect to the threaded shaft 24.
9 is disposed, and in each collar member 29 there is a corresponding collar 2.
9 is equipped with a slide bearing 30 for free rotation with respect to the screw shaft 24, and the screw sleeve 28 is equipped with a pair of slide bearings 30 that are screwed into a threaded portion 28a formed on the outer peripheral surface of the sleeve 28. Rock Nara) 31, 31,
A vice operation bundle 32 is arranged to sandwich the horizontal frame portion 19b having the shaft hole 23, and is further fixed to the outer end of the threaded sleeve 28.

Therefore, by tightening the lock nuts 31, 31, the threaded sleeve 28 is fixed to the mounting frame 19, while the threaded sleeve 28 is rotatable relative to the threaded shaft 24 and the collar member 29. 29 prevents axial movement.

That is, the screw shaft 24 is rotatably held at a fixed position on the mounting frame 19 via the screw sleeve 28.

Therefore, in order to center the vise bodies 21A and 21B, loosen the lock nuts 31 and 31 to make the screw sleeve 28 unfixed to the mounting frame 19, that is, to make it movable, and then move the screw shaft 24 as appropriate. The center line BL between the vise bodies 21A and 21B may be perpendicular to the vertical diameter line CL of the cutter, that is, the cutting wheel 6.

The workpiece mounting frame 19 is mounted on the work table 33 mounted on the machine stand 1, and the vice body 21A is mounted on the work table 33 mounted on the machine stand 1.

It is equipped so that its movement can be adjusted in a direction perpendicular to the movement direction of 21B.

As explained above, the vise device of the present invention has a threaded sleeve with a thread carved on its outer circumferential surface fitted onto one end of the threaded shaft so as to be rotatable but immovable in the axial direction, and the threaded sleeve to be cut. It is inserted loosely into the shaft hole provided in one of the horizontal frames of the material placement frame, and a pair of lock nuts are screwed into the threaded sleeve while holding the horizontal frame. Since the threaded sleeve is fixed to the horizontal frame so that it can be moved in the axial direction, it is easy to adjust the center position between the piecing bodies on the mounting frame by changing the thickness of the cutter, especially when cutting at an angle. When changing or adjusting the position, all you have to do is loosen the lock nut on the screw sleeve and move the screw shaft appropriately relative to the mounting frame, making the center positioning operation extremely easy and greatly increasing cutting work efficiency. This has the advantage that it can be improved.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view of an angle cutting machine equipped with a vise device according to the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a front view of the same. FIG. 4 is an enlarged plan view of the vice device, FIG. 5 is an enlarged sectional view taken along the line ■-V in FIG. 4, and FIG. 6 is an enlarged front view of the vice device. 18... Vise device, 19... Material to be cut mounting frame, 2
1A, 21B... Vise body, 23... Shaft hole, 24
...Threaded shaft, 25A, 25B...Left and right threaded portion, 28
...Threaded sleeve, 31...Lock nut.

Claims (1)

[Scope of utility model registration request] A pair of vice bodies are installed on a workpiece placement frame provided on the machine stand of the cutting machine so as to be slidable along the guide portion of the placement frame, and the pair of vice bodies are placed as described above. In a vise device that is threaded onto the left and right threaded portions of a screw shaft mounted on a frame, respectively, and is pulled onto a cutting machine, the vise body is moved toward and away from each other by rotation of the screw shaft. A threaded sleeve in which the mounting frame is composed of a pair of vertical frame portions having a vice body guide portion and a pair of horizontal frame portions that connect both ends of the vertical frame portions, and a thread is carved on the outer peripheral surface. is fitted onto one end of the screw shaft so as to be rotatable but immovable in the axial direction, and the screw sleeve is loosely inserted into the shaft hole provided in one of the horizontal frame portions of the mounting frame, a button, and a pair of lock nuts are screwed into the threaded sleeve with the horizontal frame held between the two, and the pair of lock nuts fix the threaded sleeve to the horizontal frame so that the movement in the axial direction can be adjusted. Vice device that can be pressed.