JPS58196918A - Workpiece cutting device - Google Patents

Abstract

PURPOSE:To cut a workpiece without vibration produced by a circular saw by firmly fixing a plurality of pipes with a support table having a bending member and a vertical clamp member. CONSTITUTION:A clamped pipe 1, a support table 2 and a vertical clamp 5 are brought into linear contact with one another, and also brought into contact widely extending over a circular arc a b by contact of leaf springs 10, 11. Furthermore, even if a gap delta is produced, a leaf spring 14 and the pipe 1a are brought into contact with each other within the range of a b. Therefore, notwithstanding variation of tolerance of the pipe 1 diameter, contact portions 9, 12 are always formed to clamp the pipe, so that the pipe can be kept from slipping and further from oscillating so the pipe can be cut finely.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a workpiece cutting device IT for cutting a rectangular workpiece, for example, a plurality of pipes, using a can blade such as a circular saw.

Conventionally, there have been some cases where the t & straight of the kiln is not shown in Figs. 1 to 3. In each of these figures, fi+ is, for example, -sl! A processed product consisting of several pipes (hereinafter referred to as pipes), (2) is y v-A (a) ice! i
5, a support stand that supports several pipes (11), (41
is a horizontal clamp that presses the pipe (1) from the horizontal direction,
(5) is the duty clamp that presses the pipe +11 from the vertical direction, (6) is the circular saw, 171 is the drive gear, (8J is the drive shaft, (9) is the pipe (1) and the support base (2), and the horizontal clamp (41, @ This is the contact part with the g clamp (5).

Next, the operation will be explained. A plurality of pipes [11 are pressed from above onto the support base (2) by a horizontal crank T5JK, and at the same time are pressed from both sides by a horizontal crank 7 (4) operated by a hydraulic cylinder (not shown). The main pipe (11 is firmly clamped at the same time.Then, the drive gear +73 drives the drive wheel (round lit ta driven through 8J) and the round #J t
The rotation center of the ar is steered from M → B40 with D as the fulcrum, that is, the circle I1m (the position of the saw blade is
By displacing →Bz→O1, pipe (1)
is disconnected. In terms of the performance of the cutting device, when the pipe [11] is cut, it is extremely favorable to
It is necessary to ensure that the tool is firmly clamped and that no slipping or vibration occurs during cutting. If the pipe [
If the circular saw (1) slips or causes excessive vibration, the saw blade of the circular saw (6) will be damaged, making it impossible to properly cut the pipe. When clamped by the vertical crank (5) and the horizontal crank (4), the conventional clamp uses a flat claw to press the circular pipe [11], so the contact area (9) is close to a line contact. Moreover, if there is a dimensional difference in the diameter of the pipe (1), a pipe (la) that is smaller than the other pipe fil may create a gap δ or the pressing force may be insufficient even if they make contact. 9.In order to perform a strong rung, increase the pressing force of the duty club/g (5) and the horizontal 2 ring (4), and press the pipe +11. In some cases, it is possible to reduce the gap a to zero by deforming a thin-walled pipe, but in some cases, a thick-walled pipe (1) may exceed its elastic limit and undergo plastic deformation, making it difficult to use as a product or component material. pipe (
1) will cause defects.

As mentioned above, with conventional devices, perfect contact cannot be achieved,
The saw blade may be damaged due to slipping or vibration of the pipe (11),
A friend that has disadvantages such as a lot of scratches and burrs on the cut surface and IC smearing.

This invention was made in view of the above-mentioned drawbacks of the conventional VC, and by providing a flexible member that contacts the workpiece eζ with pressure on either the support stand or the vertical crank, the workpiece can be rectified. It is an object of the present invention to provide a wT device for cutting temporary workpieces that can reliably and firmly crank the machine.

An embodiment of the present invention will be described below with reference to FIGS. 4 to 7. In each of these figures, (11° (2)
, (41 to ta) , (91 is the configuration of the above-mentioned nine-force device and @. LIllJ is a flexible member that is attached to the support base (2) and contacts with the pressure of (1)K. An, aA shows, as an example, a case where a slit (lQa) is formed and the spring is composed of a 7+2:4 spring (hereinafter referred to as a leaf spring).

(11) is attached to the self-righting 2 ring (5"), and the pipe +
The figure is an example of a slit (lla) formed with a plate spring (ft) and a leaf spring (
Hereinafter referred to as a leaf spring).

Next, the operation of this invention will be explained. Pipe Tll in a clamped state and support stand +2 as shown in Figure 4
3. In addition to making a line contact with the @ straight 2 pump (5), the leaf spring also makes contact over a wide range over the arc of a-+b due to the contact of 1υ.Furthermore, even if there is a gap δ, the leaf spring The light and the pipe (凰) make contact in the range a-4b. When this state is viewed from the side, it is as shown in Fig. 5. The pipe (1a) and the leaf spring 4, (1υ is the ski rJ Even if it occurs, the contact part 0 odor will always be formed.Flat spring 4, (
1 is slit (LOA) as shown in Figure 46 and Figure 7.
, (Ha) are provided so that each plate spring between the slits can independently contact the pipe (IL).

As mentioned above, according to the crank method in which the leaf springs with slits (10&), (115L) and (■) are installed,
Even if there are variations in the diameter tolerance of the pipe Fil, it is always OK.
[Look at me!7! l1l (91, forming the tl) prevents slipping of the pipe Fi, and even vibration, so it does not cause damage to the blade (6). This makes it possible to cut neatly with less burrs, and improve the performance of the cutting area.

Furthermore, even if there is no skimmer, the leaf spring is +113.

1ll) are in close contact with each other, which has the effect of preventing vibration of the pipe fi+ during cutting, and is even more effective in extending the life of the sword.

In addition, in the above embodiment, the support stand (2) and the vertical crank t
51 K slit (1 false), leaf spring with (na), (
1 and 9 are described above, but it may also be used as a spring etc. between the ura member with the bending performance. Nor.

Furthermore, in the above embodiment, a case was described in which the bending member was provided on both the support stand and the vertical crank, but if the support stand and the bending member were provided on either one of the vertical cranks, the desired effect could be obtained. Q can be made to spin.

However, although the above embodiment describes the case where the workpiece is a pipe, the present invention can also be applied to a cutting device for a workpiece made of polygonal material, etc. You can expect good results.

Incidentally, in the above description, a cutting device using a circular saw is described, but the present invention can also be applied to a cutting device using an FC, a pi, a band saw, or the like.

As explained above, the present invention provides a flexible member on either side of the vertical clamp that contacts the workpiece with pressure, so that the workpiece is reliably and firmly clamped. Therefore, it is possible to obtain a workpiece cutting device capable of cutting the workpiece.

[Brief explanation of the drawing]

ijg1 and 42 are front views and section rjiIIlrIE views showing a conventional workpiece cutting device, FIG. 3 is a partially enlarged front view of FIG. 1, and FIGS. A partially enlarged front view, a cross-sectional H view, an aXd view, and FIG. 7 showing the workpiece cutting device are perspective views showing the attached state of the side member according to the present invention. In the figure, 11) is the workpiece, (2) is the support stand, and (4) is the workpiece.
) is a horizontal clamp, (53 is a vertical clamp, u<1,
(+ is a blasphemous member. In the figure, the same - row and return indicate the same or corresponding parts. Daidan Hitome, Nobu - Figure 1 Figure 2 Figure 3 Figure 4I21!

Claims (1)

[Scope of Claims] (11) A support stand that supports the workpiece to be cut by the cutting blade, and a row of two horizontal pumps K that press the workpiece supported by the support stand from the horizontal and vertical directions, respectively.
9. A workpiece cutting device characterized in that it comprises a 11l straight clamp, a flexible member provided on either one of the support stand or the vertical clamp, and that contacts the workpiece with pressure. (2) The workpiece cutting device according to claim 1, wherein the cutting member is a leaf spring with a slit. (3) The workpiece cutting device according to claim 1 or 42, wherein the cutting blade is a saw blade of a circular saw. (41) The workpiece cutting device according to any one of claims 1 to 3, wherein the workpieces are a plurality of pipes.