JPS6233059A - Cutting surface plate - Google Patents

Abstract

PURPOSE:To reduce a manufacturing cost, and to execute freely a cutting work by providing a rotary supporting shaft on a control member and a base end part of a free bear, respectively, and also turning the free bear and the control member by a prescribed angle by using each supporting shaft a supporting point. CONSTITUTION:A vertical plate 11 is provided on a base 20, and also at its every prescribed sheet number internal, a rotary supporting shaft 35 is provided. The supporting shaft 35 is supported freely turnably through bearings 23, 24 between side walls of the base 20, and a free bear 30 is placed at a suitable interval on its upper face. On the side wall surfaces of the base 20, spline shafts 41, 42 are provided in the X and the Y axis directions, respectively, and a control member 40 is slid and also attached turnably in the peripheral direction. After an object to be worked has been positioned, the free bear 30 is turned by 180 deg. and placed on work receiving pins 10a, 10b, etc., and subsequently, the control member 40 is turned by 180 deg.. In this way, the manufacturing cost is reduced, also, a limit of cutting is dissolved, and the work is executed freely.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a cutting surface plate used for cutting a flat workpiece with a gas cutting machine or a laser cutting machine.

"Prior Art" Generally, as a device for processing steel plates and other flat members using a gas cutting machine or a laser cutting machine, for example, as shown in FIG. 4, a cutting machine main body 1 is held slidably in the Y-axis direction. A pair of running rails 3 and 4 are arranged in parallel on both ends of the horizontal rail 2, a cutting surface plate A is arranged in the space sandwiched between the running rails 3 and 4, and a cutting surface plate A is placed at a predetermined position on the cutting surface A. After placing the workpiece, the device cuts the workpiece B into a predetermined shape while moving the cutting machine main body 1 along two axes in the X-Y axis direction based on control signals from an operation panel (not shown). The cutting surface plate A used in this type of device is already known in the art, in order to avoid damage to the surface plate due to the cutting gas or laser ejected from the cutting machine main body I, and to facilitate the transportation of the workpiece B. Various devices or members have been added to facilitate positioning.

FIG. 5 shows a schematic structure of such a known surface plate, and shows 10a.
... is a workpiece receiving pin for horizontally placing workpiece B while avoiding wear and tear on surface plate A that occurs when cutting gas or laser ejected from cutting machine body 1 penetrates workpiece B. For example, as shown in FIG.
1 are erected in multiple rows in the X-axis or Y-axis direction on the base 20", and the workpiece receiving pins loa...
The structure is such that they are arranged horizontally.

30° is a free bear (&l feeding member) in which a rotatable pole member 31 is fitted at the tip to facilitate transport of the workpiece B, and is configured to be vertically expandable and retractable by an air cylinder 32 and others, and a cover member 33 is attached to prevent slag etc. from adhering to the pole member 31 during cutting.

40' is a positioning stopper (regulating member) that regulates the position of the workpiece in two planes in the X-Y axis direction;
A plurality of pieces are arranged and fixed at a predetermined distance in the X-Y axis direction on the side end side, and the workpiece B is positioned and fixed at a predetermined position by coming into contact with the regulating surface 40°a of the regulating member 40°. It is configured so that

According to this surface plate, first, while rotating the cover member 33 to the side and retracting it, the free bear 30' is extended until its tip is positioned on one side of the workpiece receiving pin 10a. , place the workpiece B on the free bear 30'.

Next, the regulating member 40 is positioned on two planes of the X axis and the Y axis while being rotated by the free bear 30° pole member 31.
' Position the workpiece B by moving it in the horizontal direction until it comes into contact with the side wall surface.

After the positioning was completed, the free bear 30° was retracted downward, the upper surface of the pole member 31 was hidden by the cover member 33, and the workpiece B was placed on the workpiece receiving pin 10a and fixed in a predetermined position. After that, start cutting.

``Problems to be Solved by the Invention'' However, in the surface plate having such a structure, both the free bear 30° and the regulating member 40′ have problems as shown below, and it has been difficult to solve them.

B. Problems with the freebear 30° In the above-mentioned surface plate, since the air cylinder 32 and other advance/retreat drive means are attached to each freebear 30', variations in advance/retreat speed are likely to occur for each freebear 30'. Workpiece B whose position was determined due to variations
The problem arises that the image becomes slanted and misalignment occurs.

In the configuration in which a forward/backward drive means is attached every 30 degrees of each freebear, in addition to the number of forward/backward drive means corresponding to the number of installed freebears 30 degrees, various piping etc. to connect these and the drive source are required, which reduces the number of parts and assembly. Not only does the number of man-hours increase,
There is also the problem that control and operation become complicated.

In addition, in the configuration in which the freebear 30' moves up and down, even if the freebear 30° moves back downward, the pole member 31 is always located above, so that the fused slag of the workpiece B is removed during the cutting process. etc. may adhere to the pole member 31, impairing the conveyance function.

For this reason, as mentioned above, a cover member 33 is provided to hide the pole member 31 when the Freebear 30° retreats downward, but especially when the retreat distance of the Freebear 30' is small, the fusing gas etc. may be accidentally released. This may melt or damage the surface of the cover member 33.

In addition, the cover member 33 must be attached to each free bear 30', and the number of free bears 30° is approximately 20 to 30 on one surface plate, so the manufacturing cost and installation cost are extremely high. easy to become

Problems with regulating member 40' When trying to cut object B from the side end facing the regulating member 40', the regulating member 40'
may become an obstacle and make it impossible to cut, and there is a risk that the regulating member 40' itself will be damaged if it is forcibly processed.

Furthermore, when the regulating member 40' takes a fixed structure, on the one hand, the shape and size of the workpiece B whose position is regulated by the regulating member 40' is limited, and small materials such as leftover materials or standards A problem arises in that it becomes impossible to set the workpiece B having an external shape.

"Summary of the first invention" The first invention aims to eliminate the disadvantages of the above-mentioned Freebear 30°, and has the following features: Workpiece receiving pins 10a for placing the workpiece B horizontally, and a freebear 30 configured to be able to protrude upwards from the workpiece receiving pins 10a to facilitate movement of the water moiety of the workpiece B. and a support shaft 35 provided on the proximal end side of the freebear 30 so that the freebear 30 can rotate in the direction of rotation of the claw surface. ,
The freebear 30 is rotated by more than 90 degrees via the support shaft 35,
Preferably, it comprises a rotating means 36 for rotating approximately 180 degrees, and the conveying surface (pole member) of the freebear 30 during cutting processing.
We propose a cutting surface plate A configured such that 31 is located on the opposite side from the workpiece B.

Note that the rotation means 36 may be provided for each support shaft 35 as shown in the embodiment described later, or it may be constituted by a single rotation means 36, and the rotational force of the rotation means 36 is transferred to the rotation transmission means. It may be configured such that the information is transmitted to a plurality of support shafts 35 via. Specifically, these rotating means 36 are preferably constructed of a rotary actuator, which is positioned at a rotational deviation by a predetermined angle and can be stopped at any time.

"Summary of the Second Invention" The second invention aims to eliminate the drawbacks of the stopper described above together with the free bear 30, and is characterized by the workpiece receiving pin 10 for horizontally placing the workpiece.
a..., a free bear 30 configured to be able to protrude upward from the workpiece receiving pin 10a... to facilitate horizontal movement of the workpiece B, a base 20 on which these are arranged in a scattered manner, and In the cutting surface A, which is composed of a regulating member 40 arranged on the side edge surface of the base 20 and regulating the horizontal position of the workpiece B, the freebear 30 and the regulating member 40 are rotatable toward the proximal end side, respectively. A support shaft 35, 41, 42 is provided on the support shaft 3.
We propose a technical means in which the freebear 30 and the regulating member 40 are configured to be able to rotate by a predetermined angle, respectively, using the free bear 30 and the regulating member 40 as a fulcrum.

The support shaft 35 that rotatably supports the regulating member 40 can be formed of a spline or other cylindrical body, or a prismatic body with a groove or protrusion extending along the axis vAc-c' direction. It is preferable that the regulating member 40 can be configured to be movable in the direction of the axis C--C of the support shaft 35.

"Operation of the first invention" According to the first invention, the conveying surface 31 of the freebear 30 is covered by rotating the freebear 30 by approximately 180 degrees using the support shaft 35 provided on the proximal end side of the freebear 30 as a fulcrum. '1 (located directly below the support shaft 35 on the opposite side from the workpiece B).

Therefore, during the cutting process, the conveyance surface 31 of the freebear 30 does not face the gas injection or laser oscillation side of the cutting machine, and the freebear 30 is moved by the support shaft 35.
Since the proximal end side is hidden, there is no possibility that melting slag or the like of the workpiece B will adhere to the conveying surface 31 of the freebear 30 during the cutting process.

Further, according to the present invention, since the base end side of the freebear 30 is hidden by the support shaft 35, there is no need to attach the cover member 33. As a result, the number of manufacturing steps and manufacturing costs are significantly reduced, and the structure is improved. Because it is simple, cities can reduce the failure rate and improve durability.

In addition, since the freebear 30 is configured to be rotatable about a support shaft 35 disposed on the base end side, the support shaft 35 is naturally located at a position considerably recessed from the surface on which the workpiece is placed. As a result, the support shaft 35 is
There is very little risk of melting or damaging the surface.

In this case, a ceramic plate (in the case of gas cutting),
Alternatively, a melt-resistant material such as aluminum or copper plate (in the case of a laser processing machine) may be attached.

Furthermore, according to the present invention, by rotating the spindle 35, it is possible to rotate a plurality of freebears 30 at once without causing variations, and therefore problems such as displacement of the positioned workpiece B occur when the freebears 30 rotate. There's no room at all.

Further, in the present invention, instead of providing the rotating means 36 for each freebear 30, only the number corresponding to the support shaft 35 or a single rotating means 3B is sufficient if a transmission means is used, and as a result, the number of parts can be reduced. This simplifies the control and operation process as well as reduces the number of assembly steps.

"Action of the second invention" According to the second invention, in addition to the action of the first invention described above, the restriction member 40 can be rotated by a predetermined angle around the support shafts 41 and 42 disposed at the base end of the restriction member 40. Because of this configuration, even when attempting to cut the workpiece B from the side end facing the regulating member 40, after regulating the position of the workpiece in the water direction, the regulating member 40 is placed downward in a row. By doing so, the regulating member 4
0 interference can be avoided, and cutting can be performed freely without being restricted by the cutting direction or cutting location.

Further, similar to the aforementioned Freebear 30, the regulating member 40
Since the spindles 41 and 42 are placed at the base end of the workpiece B and rotate as a fulcrum, the spindles 41 and 42 are placed at a position considerably recessed from the mounting surface of the workpiece B, and as a result, the melting gas There is very little risk that the surfaces of the support shafts 41 and 42 will be melted or damaged due to such factors.

Further, since the regulating surface 43 of the regulating member 40 is also located below the support shaft 41.42, there is no fear that the regulating surface of the regulating member 40 will be damaged by fusing gas, etc., and as a result, durability is improved. Significantly improved.

Further, according to the present invention, the regulating member 40 is aligned with the support shaft 41, 42 axis C.
Since it is configured to be movable in the -C" direction, the regulating member 40 can be manually or automatically moved in the force direction of the support shaft 41.42 axis c-c' according to the shape and size of the workpiece B. This makes it possible to set small materials such as leftover materials or workpieces B with non-standard shapes.

"Embodiments" Hereinafter, preferred embodiments of the present invention will be described in detail by way of example with reference to the drawings. However, unless otherwise specified, the dimensions, materials, shapes, and relative arrangements of the components described in this example are not intended to limit the scope of this invention, but are merely illustrative examples. It's nothing more than that.

1 to 3 show the detailed configuration of a surface plate according to an embodiment of the present invention, in which FIG. 1 is an overall plan view, FIG. 2 is a vertical cross-sectional view (Y-axis direction), and FIG. FIG. 4 is an enlarged cross-sectional view (in the X-axis direction) of a main part showing a modified example of FIG.

In this embodiment, a plurality of partition plates 21 are arranged in parallel along the X-axis direction on a substantially rectangular base 20, and slit grooves 22 are formed on the partition plates 21 by dipping for a predetermined period. The vertical plate 11 is fitted into the slit groove 22.

At the upper end of the vertical plate 11, there are workpiece receiving pins 10a...
Since they are fixed in rows (in the X-axis direction) and a large number of vertical plates 11 are erected in parallel in the Y-axis direction, the workpiece receiving pins loa... are placed on the base 20, i.e. They will be scattered on the X-Y axis plane.

Further, on the base 20, support shafts 35 are arranged parallel to the vertical plates 11 at intervals of a predetermined number of vertical plates 11.

The support shaft 35 is rotatably supported between the side walls of the base 20 via bearings 23 and 24, and has a sprocket 3 at one end.
The rotational force of the rotary actuator 36 is applied to the support shaft 35 via the sprocket 39.
Configure it so that it is transmitted to

Freebears 30 are fixed in a line on the upper surface of the support shaft 35 with appropriate spacing, and the freebears 30 are displaced by 180 degrees by the rotation of the rotary actuator 36 and are positioned directly below the support shaft 35. .

The freebear 30 also has a support shaft 35 fixed on the base end side.
Since it rotates using the fulcrum as a fulcrum, the rotation diameter tends to be large.

Therefore, when the freebear 30 rotates, in order to prevent the rotation from being obstructed by the adjacent vertical plate 11, the vertical plate 11 on the side of the support shaft 35 is removed as shown in FIG. Also, as shown in FIG. 3, a part of the rotating vertical plate 11 is cut out to form a space on the side of the support shaft 35 in which the free bear 30 can rotate.

A spline shaft 41.42 extends from the side wall surface of the base 20 facing two in the X-axis and Y-axis directions, and two to three regulating members 40 are installed on the spline shaft 41.42 with rods. At the same time, it is fixed to the side wall surface of the base 20 via a fixing member 44.

The spline shafts 41, 42 have a large number of grooves carved along the axial direction on the outer circumferential surface, and the regulating member 40 mounted on the spline shafts 41, 42 is rotated in the axial direction while restricting rotation in the circumferential direction. Constructed so that only the parts can be slid. As a result, the regulation member 40 can be rotated in the circumferential direction following the rotation of the spline shafts 41 and 42, and even if the workpiece B comes into impact contact with the regulation surface 43, the position will not shift. It won't happen.

Further, the regulating member 40 forms a regulating surface 43 on the side facing the workpiece B at the north end thereof, and controls the position f of the workpiece B.
compose effectively. The regulating member may be formed in an inverted shape, standing upright on a support base 441 fitted into the spline shafts 41 and 42, as shown in FIG. 1, or may be formed in a prismatic shape as shown in FIG. The regulating portion 45 may be fixedly provided on one side.

The spline shafts 41, 42 are connected to a rotary actuator (not shown), and by rotating the actuator 180 degrees, the regulating member 40 is rotated downward from the regulating position of the workpiece B, and the spline shafts 41, 42 are connected to a rotary actuator (not shown). 4
It will be located almost directly below 2.

Next, the effects of this embodiment will be explained.

The workpiece B placed on the free bear 30° is moved in the direction of the water flow and is positioned by contacting the side wall surfaces of the regulating member 40 located on two planes of the X-axis and the Y-axis.

After the positioning is completed, the freebear 30 is rotated 180 degrees, and the workpiece B is placed on the workpiece receiving pins 10a. After removing obstacles that would impede machining, the cutting process begins.

"Effects of the Invention" As described above, according to the first invention, the free bear is transported by rotating the free bear approximately 180'' using the support shaft provided on the proximal end as a fulcrum, instead of moving the free bear up and down. Since the surface 31 is retracted, there is no need for a cover member, and there is no need to provide a drive means for each freebear, and it is possible to evacuate the freebears all at once using a drive means for each spindle or a turret. As a result, it has various practical benefits such as a significant reduction in manufacturing man-hours and manufacturing costs, as well as a reduction in the failure rate and improvement in durability due to the simple structure. A city that gains value will be created.

Further, according to the second invention, in addition to the effects of the first invention described above, even when edge cutting or the like is performed on the workpiece B from the side end side, the cutting direction and the cutting direction can be maintained regardless of the arrangement position of the regulating member. Free cutting is possible without being restricted by the cutting location.

Further, according to the present invention, by configuring the regulating member to be movable manually or automatically in the direction of the spindle axis, it is possible to position and fix small materials such as leftover materials or workpieces with non-standard shapes. Become.

It has various effects such as

[Brief explanation of the drawing]

1 to 3 show the detailed configuration of a surface plate according to an embodiment of the present invention, with FIG. 1 being an overall plan view, FIG. 2 being a vertical cross-sectional view (X-axis direction), and FIG. FIG. 4 is an enlarged cross-sectional view (in the X-axis direction) of a main part showing a modified example of FIG. FIG. 4 is a plan view showing a schematic configuration of a processing apparatus to which the present invention is applied, and FIG. 5 is an enlarged sectional view of a main part showing a conventionally known surface plate. Patent applicant: Tanaka Seisakusho Co., Ltd.: Shinwa Chick Co., Ltd. Agent: Patent attorney Masahisa Takaro.

Claims (1)

[Claims] 1) A workpiece receiving pin that horizontally places a workpiece, and a free bear configured to be able to protrude upward from the workpiece receiving pin to facilitate horizontal movement of the workpiece. , in a cutting surface plate in which these are scattered and arranged on a base, a support shaft provided on the proximal end side of the freebear and arranged so that the freebear can rotate along a vertical cross section; and a rotating means for rotating the freebear by a predetermined angle, and the cutting surface plate is configured such that the conveyance surface of the freebear is located on the opposite side of the workpiece during cutting. 3) A cutting surface plate according to claim 1 having a rotation angle of approximately 180 degrees; and a work receiving pin for placing the workpiece horizontally; A cutting machine consisting of free bears designed to facilitate horizontal movement of workpieces, a base on which these are scattered, and a regulating member arranged on the side edge of the base for regulating the horizontal position of the workpiece. In the surface plate, a rotatable support shaft is provided on the proximal end side of the freebear and the regulating member, respectively, and the freebear and the regulating member are respectively configured to be able to rotate by a predetermined angle in the vertical rotation direction using the support shaft as a fulcrum. 4) A cutting surface plate according to claim 1, wherein the regulating member is configured to be movable in the direction of the spindle axis.