WO2001015852A1

WO2001015852A1 - Telescopic cover with blades of ultrathin metal sheet

Info

Publication number: WO2001015852A1
Application number: PCT/JP1999/004742
Authority: WO
Inventors: Yoshihisa Turumaki
Original assignee: Tokyo Seimitu Hatujyo., Ltd
Priority date: 1999-09-01
Filing date: 1999-09-01
Publication date: 2001-03-08

Abstract

A telescopic cover for covering industrial machines which has blades that slide following the movable mechanism of the main spindle head or the like of an industrial machine. The telescopic cover (1) formed by slidably laminating a number of partial covers (2a - 2d) of thin metal sheet, wherein a blade (3) of ultrathin metal sheet, 0.01 - 0.3 mm thick, is fixed to a part or the whole of the surface of the slide portion of the end of each partial cover, so that such blades are slidable as they are pressed against the slide surfaces of the partial covers of the telescopic cover. Further, it is also possible to fix a number of such blades to a part or the whole of each of the surfaces of the slide portions at the ends of the partial covers at intervals of 1 - 5 mm. This arrangement prevents chips, cutting water or the like from entering the telescopic cover, while retaining the smooth slidability of the movable mechanism of an industrial machine, ensuring reduced frictional resistance of the blades, and improved durability, slidability and sealability.

Description

Description Telescopic cover with ultra-thin metal plate blade

The present invention provides a unique blade that covers an industrial machine and slides according to a moving mechanism such as a spindle head, a bed, a table, a column, a piston, a cylinder, and a TC cover of the industrial machine. Telescopic cover. Background art

For example, when metal is cut with a cutting machine, the cutting mechanism generated by cutting the metal and the spatter (hereinafter referred to as chipping) force; When this occurs, the smooth sliding of the moving mechanism of the industrial machine may be hindered, or the moving mechanism may be worn, resulting in deterioration of the performance of the industrial machine.

In particular, when cutting metal with an ultra-high-speed cutting machine, a large amount of cutting water, etc., is poured from the top of the cutting machine into the cutting area to eliminate chips and cool the heat generated by the metal. When water or the like flows into a moving mechanism such as a spindle head of an industrial machine in the vicinity, the moving mechanism of the industrial machine generates 鲭, and the slidability is deteriorated, thereby deteriorating the performance of the industrial machine.

As a countermeasure against this problem, an industrial machine that has a moving mechanism such as a spindle head that is bare and exposed is covered with a cover. Conventionally, this type of cover is made of a cloth or vinyl bellows. In recent years, telescopic covers have been replaced by a large number of metal plate partial covers that are slidable one after the other due to problems with physical strength, etc. Are beginning to be used in certain areas. For example, as shown in Fig. 1, a conventional metal plate telescopic cover 1 is composed of a plurality of partial metal covers 2a to e, which are rectangular thin metal plates, and each partial force bar 2 a to e are slid left and right, and a thin rubber 1 is placed at the tip of each partial force bar 2 a to e where it contacts the other partial cover 2 a to e. It had a number of blades 3 attached, and the blades 3 were made of felt, vinyl, etc. other than rubber.

As shown in FIG. 2, the telescopic cover 1 covers the industrial machine 5 and fixes a partial cover 2a at one end to the mobile mechanism 4 of the industrial machine 5 while partially covering the other end. One 2e was fixed to the fixing mechanism 6 of the industrial machine 5, and the partial force bars 2a to e were slid left and right according to the left and right movement of the moving mechanism 4 of the industrial machine 5.

That is, as the moving mechanism 4 of the industrial machine 5 moves to the left, the cover 2 a to e of the telescopic cover 1 is extended to the left, and the rubber blade 3 attached to the tip of the cover 2 a to e is extended. By sliding to the left, chips and cutting water are discharged to the outside, and then, as the moving mechanism 4 of the industrial machine 5 moves to the right, the respective cover parts 2a to e are removed. By shrinking the blade to the right and sliding the blade 3 to the right, the chips and cutting water are discharged to the outside, and the chips and cutting water are removed from the telescopic force bar. An attempt was made to prevent intrusion into the moving mechanism 4 of the internal industrial machine 5 from the gaps between the partial force bars 2a to e.

However, the rubber blades 3 have a large plate thickness (3 to 10 mm), and the spacing between the blades 3 tends to be large (10 to 20 mm). There is a drawback that chips and cutting water enter the gaps from the gaps, and the partial force bars 2a to 2e are large and inevitably heavy, and the telescopic cover 1 becomes large and heavy. There are drawbacks, Blade 3 was also easily worn, had poor slidability, and had poor durability.

The rubber blade 3 is in the form of a single flat bar, and when the blade 3 slides, the entire lower surface of the blade 3 comes into contact with one or all of the partial force bars 2 a to e and slides. However, depending on the state of wear and deterioration of blade 3 and the unevenness of the contact surface of each partial force bar 2a to e, the entire lower surface of blade 3 may be It is difficult to make contact with the entire surface of e.

In other words, the surface of a part of the lower portion of the blade 3 often contacts the surfaces of the partial force bars 2a to 2e to make point contact, and a gap is generated between the blade 3 and the contact surface, and the blade 3 is cut from the gap. There are problems such as intrusion of powder, cutting water, etc., and deterioration of the sealing performance and swiving performance of the blade 3.Especially, each partial force bar 2a ~ e is circular or elliptical, When the blade 3 was mounted in a ring shape, point contact was liable to occur, and the sealing property and the swivel property of the blade 3 tended to deteriorate.

In addition, the rubber blade 3 is often attached only to the tip of each partial force bar 2a to e, and to the left and right end and rear end of each partial force bar 2a to e. There was a large gap in the area where the rubber blade 3 was not attached, and it was inevitable that chips and cutting water would enter through this large gap.

Conventionally, the partial cover 2 of the telescopic cover 1 attached to the moving mechanism 4 of the industrial machine 5 is often made of a thin sheet of ordinary steel such as SS41 or SPCC, and has durability and wear resistance. Due to problems in physical strength, lightness, etc., stainless steel sheets, for example, work hardened stainless steel thin sheets such as SUS301H and SUS304HT, etc. Trial to manufacture with stainless steel thin plate of SUS63, SUS631, etc. It was done.

However, regardless of whether the partial cover 2 of the telescopic cover 1 is made of ordinary steel or stainless steel, when the telescopic cover 1 slides due to its thickness and weight of the material. In addition, a load is applied to each of the partial force bars 2a to e to increase the frictional resistance, resulting in poor slidability and durability, and a problem that the physical strength and performance required for the telescopic cover 1 cannot be obtained. Was.

In addition, work hardening type stainless steel has problems in price, etc., and transformation strengthened stainless steel has problems such as corrosion resistance and quenching and tempering requiring heat treatment. In particular, for the telescopic cover 1 used for the moving mechanism of high-performance industrial machines that operate at ultra-high speeds in recent years, the entirety of the telescopic cover 1 has been further reduced in weight, slidability, and durability. However, further improvement in wear resistance was required.

Furthermore, in the above-described telescopic cover 1 made of a thin metal plate, the partial force bars 2a to 2e are independent and separated from each other, and do not have a connected mechanism. In many cases, the cover 2b slides. In this case, the partial force bars 2a to e do not simultaneously slide at a uniform distance, and the partial cover 2a to e There is variation in the movement of the telescopic cover, and only the easy-to-move partial cover slides and the immovable partial cover also moves.Therefore, the entire sliding of the telescopic cover 1 is not smooth, and there is no straightness. There were many inconveniences such as making noise and easy failure.

As a result, the applicant company has conducted extensive research on blades, since rubber blades are unsuitable as blades for metal thin telescopic covers 1 to be attached to recent high-performance industrial machines. Metal sheet, which could not be used as a blade at all, In other words, `` Sheet metal with high elasticity and physical strength, such as stainless steel for springs, quenched ribbon copper, etc., with a thickness of 0.01 to 0.3 mm '' is used as a plate-shaped slit. We have developed a new blade that can be fitted into the sliding part of machine tools and other equipment by fitting it into the machine.

In addition, as a result of further research on the above-mentioned metal sheet blade, the applicant company has found that an ultra-thin metal sheet with improved properties, namely, `` carbon content of 0.03-0.1%, chromium content An ultra-thin metal sheet with a thickness of 0.01 to 0.3 mm made of iron copper or stainless steel containing 10 to 20% has been newly developed as a blade for industrial machinery or telescopic covers.

According to the present invention, an ultra-thin metal plate blade is attached to each part cover of a telescopic cover which covers an industrial machine and slides in accordance with the movement of a moving mechanism such as a spindle head of the industrial machine. The purpose is to prevent intrusion of cutting chips, cutting water, etc., maintain the smooth slidability of the moving mechanism of the industrial machine, and sufficiently exhibit the performance of the industrial machine.

In addition, the present invention attaches a blade of an ultra-thin metal plate to a sliding portion of each partial cover (particularly, a circular or elliptical partial force bar) of the telescopic cover, and attaches the blade as in the conventional case. Instead of a flat bar or semi-circular shape, it is divided into a number of ultra-thin metal plate blades, and a number of point contacts are made when sliding the blades to make them close to surface contact. Therefore, the purpose is to further improve the discharge of cutting powder, cutting water, and the like by the blade, and the sealing performance.

Further, the present invention provides an ultra-thin metal plate blade fixed to each of the partial force bars of the telescopic cover, as a steel or stainless steel containing 0.03 to 0.1% of carbon and 10 to 20% of chromium. By using a blade with a thickness of 0.01 to 0.3 mm, the hardness, elasticity, physical strength, etc. of the blade are further increased, and the blade is made smaller and thinner to make the contact surface The purpose is to reduce the frictional resistance of the blade, improve durability, slidability, sealability, and sweepability.

Further, according to the present invention, the pantograph is attached to the partial cover of the telescopic cover described above, and the telescopic cover is smoothly slid by simultaneously and uniformly sliding each partial force bar at a uniform distance. The goal is to reduce noise by providing straightness.

Further, the present invention uses a high-strength, multi-layer stainless steel as a material for each of the above-described telescopic covers and the pantograph, reduces the thickness of each of the component bars, and compacts the telescopic cover. The purpose is to reduce the weight and weight of the telescopic cover and to improve the elasticity, slidability, abrasion resistance, durability, and physical strength of the telescopic cover. Disclosure of the invention

The present invention relates to a telescopic cover provided with a blade of an ultrathin metal plate, and slidably stacks a large number of partial covers of a metal thin plate to form a telescopic cover, and forms a telescopic cover for each partial force bar. A blade of an ultra-thin metal plate with a thickness of 0.01 to 0.3 mm is fixed to one or all surfaces of the sliding portion at the end, and chips and water for cutting are removed by sliding the blade. It is characterized by improving the performance of the telescopic cover, such as the slidability, at the same time as discharging and sealing.

Further, the present invention relates to a telescopic cover provided with the above-described ultrathin metal plate blade, wherein a large number of partial covers of the metal thin plate are slidably laminated to form a telescopic cover, and each partial force bar is formed. A large number of ultra-thin metal plate blades with a thickness of 0.1 to 0.3 mm are fixed at one to five mm intervals to one or all of the sliding points at the ends of the In addition, chips and water for cutting are discharged by sliding many blades At the same time as improving the slidability of the telescopic cover.

Further, the present invention provides an ultra-thin metal plate blade fixed to one or all of the sliding portions at the ends of the above-described telescopic covers at the ends of the respective partial covers, and has a carbon content of 0.3 to 0.3. Steel or stainless steel containing 1% and a chromium amount of 10 to 20% .By using a blade with a thickness of 0.01 to 0.3 mm, the sealing performance as a blade is achieved. It is characterized by further improving the performance such as slidability.

Further, the present invention provides one or a plurality of pantographs to the above-described telescopic cover, and a simultaneous action of the partial cover of the telescopic cover and a straight line by a buffering action and a braking action of the pantograph. The feature is that the telescopic cover is lightly moved, noise is reduced, and the telescopic cover is slid stably.

Further, the present invention relates to a method of forming one or both of the above-described partial cover of the telescopic cover and the pantograph with a soft ferrite phase and a hard martensite phase containing 17% Cr—2% Ni as a main component. High-strength, multi-layered structure with a micro-mixed structure Made of an ultra-thin metal plate made of stainless steel to further enhance the sliding properties, elasticity, abrasion resistance, durability, and physical strength of the telescopic cover There is a feature. BRIEF DESCRIPTION OF THE FIGURES

Fig. 1 is a plan view of a conventional telescopic cover in which rubber blades are fixed to a number of partial covers of slidably laminated metal sheets, and Fig. 2 is a plan view of a large number of slidably laminated metal sheets. FIG. 7 is a side view of a conventional telescopic cover in which a rubber blade is fixed to two partial covers,

Fig. 3 shows an ultra-thin metal on a number of partial covers of slidably laminated metal sheets. FIG. 4 is an exploded view of the telescopic cover of the present invention in which the plate blade is fixed, and FIG. 4 shows a pantograph in which the blade of the ultrathin metal plate is fixed to a plurality of partial covers of a slidably laminated metal plate. Fig. 5 is a cross-sectional view of the telescopic cover according to the present invention, which is provided with a plurality of partial covers of slidably laminated metal sheets. FIG. 4 is a plan view of the telescopic cover of the present invention, showing a state in which a moving mechanism such as a spindle head of a machine is inserted, and each partial force bar and a pantograph slide according to the movement of the moving mechanism of the industrial equipment. FIG. 6 is an exploded view of a partial cover of a thin metal sheet of the present invention in which a large number of ultra-thin metal sheet blades are fixed at intervals on a large number of partial covers of a slidably laminated thin metal sheet. Figure 7 shows FIG. 8 is a plan view of an elliptical sheet metal partial cover of the present invention in which several ultra-thin sheet metal blades are fixed at intervals, and FIG. 8 shows a plurality of slidably laminated sheet metal parts. FIG. 9 is a plan view of the telescopic cover of the present invention showing a state in which a moving mechanism such as a spindle head of an industrial machine is mounted on a notch provided at one end of the cover, and FIG. 9 is slidably stacked. FIG. 10 is a plan view of the telescopic cover of the present invention, showing a state in which a moving mechanism such as a spindle head of an industrial machine is mounted in a mounting hole provided in a central partial cover of a number of partial covers made of a thin metal plate. The figure shows a state in which the mounting shaft of the pantograph is fixed to the telescopic cover and the sliding guide shaft of the pantograph is slidably inserted into the slit guide of the slit plate fixed to the telescopic cover. Of the present invention It is an explanatory diagram of the less Kopikkukaba scratch. BEST MODE FOR CARRYING OUT THE INVENTION

An example in which the telescopic cover provided with the blade of the ultrathin metal plate of the present invention is attached to an industrial machine will be described. As shown in FIG. The telescopic cover 1 is made of rectangular stainless steel and has a 0.5 to 3 mm thick sheet metal cover 2a, 2b, 2c, 2d slidably laminated and formed. On one surface of the sliding portion at the end of each of these partial covers 2 to d, a blade 3 of a single ultrathin metal plate of a long plate shape having a thickness of 0.01 to 0.3 mm is used. Is fixed.

As shown in FIG. 4, the moving mechanism 4 such as the spindle head of the industrial machine 5 is attached to the partial cover 2a of the telescopic cover 1, and the fixing mechanism 6 of the industrial machine 5 is attached to the partial cover 2d. The fixing mechanism 6 of the industrial machine 5 may be attached to the partial cover 2a, and the moving mechanism 4 of the industrial equipment 5 may be attached to the partial cover 2d.In some cases, the partial cover 2a and the partial cover 2 may be attached. The moving mechanism 4 of the industrial equipment 5 may be attached to d. The pantograph 7 may be attached to the partial cover 2a to d of the telescopic force bar 1 in two rows to improve the straightness and slidability of the telescopic cover 1, and an example of a mechanism for attaching the pantograph 7 As shown in Fig. 4, the mounting shaft 9 rotatably attached to each crossing point of the connecting bar 8 of the pantograph 7 is partially covered with the metal sheet metal partial covers 2a, 2b, 2c, and 2d. It is sufficient to rotatably insert the bearing 10 into the bearing 10 fixed to one end of the lower side surface of the bearing.

In accordance with the movement of the moving mechanism 4 of the industrial machine 5 to the left, the telescopic cover 1 extends the respective covers 2 a to e of the telescopic cover 1 to the left and also extends the pantograph 7. By sliding the blade 3 of the ultra-thin metal plate attached to the tip part to the left, chips and water for cutting are discharged to the outside, and then the rightward of the moving mechanism 4 of the industrial machine 5 In accordance with the movement, the respective partial force bars 2a to 2e are contracted rightward and the pantograph 7 is also contracted, and the blade 3 is slid rightward. The blade 3 fixed to the partial cover 2a slides by pressing the slidable surface of the partial cover 2b, and the blade 3 fixed to the partial cover 2b Then, the sliding surface of the partial cover 2c is pressed and slid on the sliding surface of the partial cover 2d. And cutting water etc. to the outside

When the pantograph 7 is attached to the partial cover 2 a to d of the telescopic cover 1, the partial cover 2 is used as a moving mechanism 4 for the spindle head of the industrial machine 5 and a fixing mechanism 6 for the industrial machine 5 when sliding. a and the partial cover 2d are concentrated, and the partial cover 2a and the partial cover 2d may be damaged.In such a case, the moving mechanism such as the spindle head of the industrial machine 5 is used. A reinforcing plate (not shown) may be fixed to one or both of the fixing mechanism 6 and the fixing mechanism 6 of the industrial machine 5, and the partial cover 2a or the partial cover 2d may be attached, and the pantograph 7 may be attached to the reinforcing plate.

According to FIG. 5, the operation state when the moving mechanism 4 such as the spindle head of the industrial machine 5 is loaded between the two sets of the telescopic force bar 1 to which a number of blades 3 are fixed will be described. When the moving mechanism 4 of 5 moves to the left, the partial covers 2a to e of the telescopic cover 1 also slide and contract to the left, and the pantograph 7 also slides and contracts, and By performing the multi-point contact sliding by step 1, chips and water for cutting are discharged, and at the same time, the partial covers 2 a to e of the other telescopic cover 1 also slide to the left and extend. The pantograph 7 also extends by sliding, and performs multipoint contact sliding with the blade 3, thereby discharging cutting chips, cutting water, and the like.

Next, when the moving mechanism 4 of the industrial equipment 5 moves rightward, the partial covers 2a to e of one telescopic cover 1 also slide rightward to contract, and the pantograph 7 also slides. Extend, multi-point connection with blade 3 By performing touch sliding, chips and cutting water are discharged, and at the same time, the partial covers 2a to e of the other telescopic cover 1 slide rightward to contract, and the pantograph 7 also slides. By moving and contracting, and performing multi-point contact sliding by the blade 3, chips and water for cutting are discharged, and thereafter, the above-described operations are repeated alternately.

The pressure applied when the other end of the blade 3 of the ultra-thin metal plate is pressed against the sliding surface 4 of the industrial machine 5 is the same as that of a conventional metal plate made of stainless steel for spring and quenched ribbon steel. Pressure of 50 to 600 g (per 10 O mm), but the blade 3 made of steel or stainless steel with high carbon content and low carbon content of ultra-thin metal plate The pressure is 10 to 300 g (per 100 mm), the frictional resistance is low, and no extra load or load is applied to the blade 3 or the sliding surface of the industrial machine 5. Demonstrates good sealing and wiping properties.

As the material of the partial cover 2 of the thin metal plate of the telescopic cover 1, the above-described stainless steel may be used, but a soft ferrite phase containing 17% Cr—2% Ni as a main component. By using a high-strength multi-layer stainless steel having a hard martensite phase and a fine mixed structure, the physical strength of the partial cover 12 may be further increased.

The number of the metal sheet partial covers 2 of the telescopic cover 1 may be 3 to 30 sheets, and the width of the partial cover 2 is 5 to 200 cm and the length is 5 to 50 cm. The width and length of the bar 2 may differ by 1 to 10 cm). The shape of the partial cover 2 may be circular or elliptical in addition to the rectangular shape described above. As the blade 3, a rectangular piece as shown in FIG. 3 can be used, or as shown in FIG. 6, a width of 0.5 to 3 cm and a length of! Up to 5 cm, board thickness 0.01

~ 0.3 mm on one side of the sliding part at the end of the partial cover 2 or It may be fixed at intervals of 1 to 5 mm on the entire surface.The number of blades 3 depends on the size of the partial cover 2, but usually 2 to 8 Z 10 cm (Per part cover) is appropriate.

In particular, when a large number of ultra-thin metal plate blades 3 are fixed at sliding positions on the slidable stacked elliptical partial cover 2 as shown in Fig. 1 Sliding (multipoint contact sliding) enables smooth discharge of chips and cutting water.

The material of the blade 3 is steel or stainless steel containing a carbon content of 0.03 to 0.1% and a chromium amount of 1 ° to 20% (hereinafter referred to simply as stainless steel with low carbon content and high chromium content). It is best to use steel, which is a new material that has been recently developed and has excellent properties of high strength (tensile strength of 200 to 200 N / mm). For example, Nisshin Steel's high-strength stainless steel is sold under the product numbers of SUS631, NSS HT1770, NSSHT1960, and NSSHT200.

In addition, stainless steel with a low carbon content and a high chromium content, which is used as an ultra-thin metal plate blade 3, has excellent properties such as a high hardness (wear resistance) and a small decrease in strength due to welding. The feature of this material is that it is used as an extremely thin, compact and lightweight blade 3 with a thickness of 0.01 to 0.3 mm.

The carbon content of stainless steels with low carbon content and high chromium content is

The value of 0.1% is used to prevent a reduction in strength that occurs when the blade 3 is directly welded to the partial cover 2, and if the carbon content of the stainless steel is less than 0.03%, the welding is performed. However, if the stainless steel has a carbon content of more than 0.1%, it will be difficult to weld the blade 3 directly to the partial cover 2. This is to cause a decrease. The reason why the chromium content of the stainless steel having a low carbon content and a high chromium content is made 10 to 20% is to provide hardness (wear resistance), and the chromium content is 10%. If it is less than 3, the blade 3 cannot have sufficient hardness (abrasion resistance), and if the chromium content exceeds 20%, the hardness can be further increased but the elasticity is difficult. This is because there is a risk of occurrence.

Furthermore, making the thickness of stainless steel with a low carbon content and a high chromium content into an extremely thin metal plate with a thickness of 0.01 to 0.3 mm (preferably 0.05 to 0.1 mm) When used as the blade 3, it takes advantage of high strength (tensile strength), elasticity, etc., and makes the blade 3 thinner, smaller, lighter, more compact, and at the same time as the sliding surface of the telescopic cover 1. The purpose of this is to reduce the contact power of the telescopic cover 1 by reducing the contact area thereof, reducing the frictional resistance, and applying no extra load or load to the sliding portion or the moving mechanism of the telescopic cover 1.

If the thickness of the stainless steel with a low carbon content and a high chromium content is less than 0.01 mm, the hardness and physical strength when used as the blade 3 will be sufficient. In addition, manufacturing the blade 3 with a thickness of less than 0.01 mm is troublesome and costly in manufacturing and processing, and further, has a low carbon content and a high chromium content. When the thickness of the stainless steel exceeds 0.3 mm, the elasticity and lightness of the blade 3 become difficult.

One end of the blade 3 of the ultrathin metal plate is directly welded to the sliding part of the end of the partial cover 2, and the part protruding (0.05 to lmm) from the partial cover 2 is defined as the blade. The shape of the blade 3 is a flat plate, and any shape may be used as long as the tip of the blade 3 can protrude from the partial cover 2. Also, one end of blade 3 As a means for welding the portion to the partial cover 2, electric spot welding or laser welding is preferable, but it goes without saying that a welding method other than these may be used.

To fix the blade 3 to the partial cover 2, besides the welding described above, apply a bonding agent to one or all of the sliding portions at the end of the partial cover 2 and the blade 3 to bond them, or When the adhesive is applied and the blade 3 is fixed by rivets on one or all of the sliding points at the end of the partial cover 2, the seal can be securely sealed so that cutting water does not enter, and the joining is simple and easy. become.

Further, when fixing the blade 3 of the ultra-thin metal plate to the sliding portion at the end of the partial cover 2, if the blade 3 of the ultra-thin metal plate is bent in the shape of The accuracy of the blade 3 is further improved, the stiffness of the blade 3 is further strengthened, and more stable pressing performance is maintained, and the sealing performance and wiving performance of fluids and contaminants can be remarkably improved.

Stainless steel may be used as the material of the pantograph 7 to be attached to the telescopic cover 1, but the ferrite phase and the hard ferrite phase are mainly composed of 17% Cr—2% Ni. The physical strength of the pantograph 7 may be increased by using a high-strength double-layered stainless steel having a martensite phase and a fine mixed structure.

Stainless steel may be used as the material of the mounting shaft 9 of the pantograph 7, but if stainless steel subjected to immersion nitriding is used, the mounting shaft 9 is extremely slidable due to its hardened surface. It is excellent in mobility and physical strength, and even if excessive force is applied to the mounting shaft 9 of the connecting bar 8 of the pantograph 7 of the telescopic cover 1 attached to the moving mechanism of the industrial equipment described above, Of the mounting shaft 9 is flexible because the inside of the mounting shaft 9 is not hardened. The pantograph 7 is improved in elasticity and slidability over the entire edge without being bent or broken, and operates stably and smoothly over a long period of time.

Further, when the connecting bar 8 of the pantograph 7 is formed by laminating 2 to 10 pieces of spring stainless sheet copper having a thickness of 0.1 to 3 mm, the stainless steel sheet steel is laminated. The connecting bar 8 is further enhanced in elasticity, paneling property, and physical strength, and has a higher dynamism coefficient, so that the pantograph 7 can be made highly elastic.

In other words, even if the telescopic cover 1 is used as a pantograph 7 and an excessive force is applied, the connecting bars 8 made of thin and laminated spring stainless steel sheets are mutually folded, buffered and withstand. The pantograph 7 does not bend or break, and the pantograph 7 is further improved in stretchability, slidability, and straightness, and the pantograph 7 operates more stably and smoothly for a longer period of time.

As another mechanism for mounting the moving mechanism 4 such as the spindle head of the industrial machine 5 on the telescopic cover 1 to which the above-mentioned many blades 3 are fixed, the partial cover 2a or 2d of the telescopic cover 1 is used. In addition, a notch portion 14 as shown in FIG. 8 may be provided, and the moving mechanism 4 such as the spindle head of the industrial machine 5 may be inserted into the notch portion 14. 2 Insert the ends of a to (!) Into holder 13 so that they can slide.

Further, the notch portions 14 may be combined face-to-face to load the moving mechanism 4 such as the spindle head of the industrial machine 5, and, as shown in FIG. A mounting hole 11 for loading the moving mechanism 4 such as the spindle head of the industrial machine 5 may be provided in the partial cover 2a.

When the partial covers 2a to 2d are slidably stacked, the partial force bar 2a is positioned at the top according to the conditions such as the direction in which chips and cutting water are discharged and the direction in which the industrial machine moves. And partial covers 2b to d are sequentially stacked Alternatively, the partial cover 2a may be the lowest and the partial covers 2b to d may be sequentially stacked.

To attach the pantograph 7 to the telescopic cover 1, as shown in FIG. 10, fix the mounting shaft 9 of the pantograph 7 to the partial covers 2 a to 2 d of the telescopic cover 1, and slide the mounting slide of the pantograph 7. The driving shaft 15 may be slidably inserted into the slit guide 17 of the slit plate 16 fixed to the partial cover 2a to 2d of the telescopic cover 1.

Industrial applicability

ADVANTAGE OF THE INVENTION According to this invention, the blade of an ultra-thin metal plate is fixed to the sliding part of the end of each partial force bar of a telescopic cover, and it can reliably prevent intrusion of cutting chips, cutting water, etc. Since there is no intrusion of water, etc., the smooth sliding property of the moving mechanism of the industrial machine can be maintained, and the performance of the industrial machine can be fully exhibited.

Further, according to the present invention, when the telescopic cover slides, a plurality of blades of the ultra-thin metal plate are fixed to each of the partial covers at intervals, and multipoint contact sliding is performed. The cover of each part can be sealed in a state close to full surface contact, and it is possible to reliably discharge chips and cutting water, etc., and the chips and cutting are transferred to the moving mechanism of the industrial machine inside the telescopic cover. It has an excellent advantage of preventing intrusion into water and the like.

Further, according to the present invention, as the material of the blade of the ultra-thin metal plate fixed to each partial force bar of the telescopic cover, an ultra-thin metal plate such as stainless steel having a low carbon content and a high Ku content is used. The use of a braided blade allows the blade thickness to be reduced to 1/8 to 1Z20 compared to conventional rubber blades, making these telescopic covers more compact.

(1 Z 2-1 Z 3), and the weight is further reduced (1 / P

3 to 1/5) is possible.

Further, according to the present invention, by attaching the pantograph to the telescopic cover, each partial cover can be simultaneously formed by a buffering action caused by the whole pantograph interlocking with each other and a blocking action. , Linked, equidistant, straight-lined, and can be moved smoothly. The telescopic cover as a whole is light, reduces metal noise, and is stable. Can slide back and forth.

Further, according to the present invention, it is preferable that each cover of the telescopic cover and the pantograph are made of a high-strength multi-layer stainless steel having a fine mixed structure of a soft ferrite phase and a hard martensite phase. Compared to the case where this material is not used, the thickness of the partial cover of the telescopic cover can be reduced to 1 to 3 to 1 Z5 and the thickness of the bantagraph to 1 Z 2 to 1/3. This has the advantage that the telescopic cover can be reduced to 1/2 to 1Z3 and the weight can be reduced to 1/2 to 1Z3. The elasticity, slidability, abrasion resistance, durability and physical strength of the telescopic cover can be two to three times stronger than when this material is not used.

Claims

The scope of the claims

1. A large number of thin metal sheet covers are slidably laminated to form a telescopic force bar, which covers the industrial machine with the telescopic cover, and the telescopic cover moves the industrial machine head, etc. For sliding as the mechanism moves, an ultra-thin metal plate blade with a thickness of 0.01 to 0.3 mm is fixed to one or all of the sliding points at the end of each partial force bar. A telescopic cover provided with an ultra-thin metal plate blade configured to press and slide the blade against the sliding surface of each partial force bar of the telescopic cover.

2. A large number of ultra-thin metal plate blades with a thickness of 0.01 to 0.3 mm are applied to one or all of the sliding points at the end of each partial force bar of the telescopic cover. The ultra-thin metal plate according to claim 1, wherein a plurality of blades are fixed at intervals of 5 mm so that a large number of blades are pressed against the sliding surface of each partial force bar of the telescopic cover to slide. Telescopic power bar with braids.

3. Steel or stainless steel containing 0.03 to 0.1% of carbon and 10 to 20% of chromium as the blade of ultra-thin metal plate fixed to each partial force bar of the telescopic cover 3. A telescopic force bar provided with an ultra-thin metal plate blade according to claim 1 or 2, wherein the blade has a thickness of 0.01 to 0.3 mm.

4. A telescopic cover provided with an ultra-thin metal plate blade according to claim 1, wherein at least one pantograph is attached to the telescopic cover.

5. Part of the telescopic cover and one or both of the pantograph and the soft ferrite phase with 17% Cr- 2% Ni as the main component. A large number of ultrathin metal sheets according to claim 1 or claim 2 or claim 3 or claim 4 formed of a high-strength multilayered stainless steel sheet having a hard martensite phase and a fine mixed structure. Telesco Bigka Kuichi with multiple blades.

Claims of amendment

[February 3, 2000 (03.02.00) Accepted by the International Bureau: Claims 3 and 4 originally filed have been withdrawn; Claims 1, 2, and 5 originally filed have been amended. (1 page)]

1. (After correction) A large number of thin metal sheet covers are slidably stacked to form a telescopic cover, and the telescopic cover is used to cover the industrial machine. Regarding sliding according to the movement of the moving mechanism such as the spindle head, one side or the entire surface of the sliding portion at the end of each partial force bar has a carbon content of 0.03 to 0.1% and a chromium amount of 10 to 20% steel or stainless steel with a thickness of 0.01 to 0.3 mm is fixed to the blade of an ultra-thin metal plate, and the blade is covered by each partial force bar of the telescopic cover. A telescopic cover that is configured to slide by pressing against a sliding surface, and that is provided with an ultra-thin metal plate blade with one or more pantographs attached to the telescopic cover.

2. (After capture) A large number of blades of an ultrathin metal plate with a thickness of 0.01 to 0.3 mm on the surface or the entire surface of the sliding point at the end of each partial force bar of the telescopic cover. Claim 1 in which the blades are fixed at intervals of 1 to 5 mm, and a large number of blades are configured to be slid by pressing against the sliding surface of each cover of the telescopic cover. Telescopic cover with ultra-thin metal plate blade.

3. (Delete)

4. (Delete)

5. (After capture) One or both of the telescopic cover partial cover and the pantograph are finely divided into a soft ferrite phase and a hard martensite phase with 17% Cr-2% Ni as the main component. 3. A telescopic cover provided with a multiplicity of blades of the ultrathin metal plate according to claim 1 or 2 formed of a high-strength multi-layer stainless steel metal plate having a mixed structure.

20 裩 Correct paper (Article 19 of the Convention) An explanation based on Article 19 of the Convention Low The scope of claim 1 is that the telescopic cover that covers the industrial machine and slides according to the movement of the moving mechanism such as the spindle head of the industrial machine has a carbon content of 0.03 to 0.1%. In addition, it was clarified that a braid of an ultra-thin metal plate made of steel or stainless steel containing 10 to 20% of chromium and having a thickness of 0.01 to 0.3 mm was fixed and a pantograph was attached.

The cited example JP 11-1 59627 A is for mechanically fixing the above-mentioned ultra-thin metal plate blade directly to a sliding part such as a table, column, or biston of an industrial machine.

Reference example JP 10-1 80587 A has a pantograph attached to a telescopic cover attached to an industrial machine, and a blade made of a thin metal plate such as stainless steel for paneling and quenched ribbon steel with a thickness of 0.1 to 0.3 mm. Is fixed.

The present invention relates to a steel or stainless steel containing 0.03 to 0.1% of carbon and 10 to 20% of chromium at the end of a telescopic cover which slides by being attached to a moving mechanism such as a spindle head of an industrial machine. By fixing the blade of an ultra-thin metal plate with a thickness of 0.01 to 0.3 mm, and attaching a pantograph to the telescopic cover, it is especially suitable for industrial machines that operate at ultra-high speeds. Excellent sealing performance for small objects, lightweight, low frictional resistance, smooth and straight sliding performance required for cover, excellent in durability and abrasion resistance, compact and low This is an excellent effect that cannot be achieved with the conventional telescopic power bar, which is noise.