JP4090120B2 - Telescopic cover with pantograph - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a telescopic cover attached to an industrial device so as to cover a moving mechanism such as a spindle head, a piston, a cylinder, etc. of the industrial device. A single pantograph is attached to the telescopic cover, and the moving mechanism of the industrial device is It is characterized in that the telescopic cover is slid with linearity according to the movement.
[0002]
[Prior art]
Conventionally, when a moving mechanism such as a spindle head, a piston, or a cylinder of industrial equipment is exposed naked, there is a disadvantage that oil is scattered and the surroundings are contaminated, and there is a risk of pinching an operator's limbs and clothes.
[0003]
In addition, foreign materials such as swarf and spatter and dust may enter and adhere to the moving mechanism of industrial equipment and the gap formed thereby, which may hinder the smooth movement of the moving mechanism and cause the moving mechanism to wear. There was also a problem in design as an industrial machine.
[0004]
Traditionally, the movement mechanism of industrial equipment exposed naked has been covered with a cloth or vinyl bellows-like telescopic cover, but recently, the partial covers of a plurality of thin metal plates are slidably overlapped. A telescopic cover is used.
[0005]
However, the partial covers of the telescopic cover are not connected to each other separately and separated, and the partial cover is slid by the partial cover. The sliding is not smooth, does not go straight, often generates abnormal noise, and has a disadvantage that it is easily broken as a telescopic cover.
[0006]
Furthermore, as an improvement of this telescopic cover, as described in Japanese Patent Publication No. 3-21297, each partial cover of the metal thin plate is spanned across the both ends of a metal square frame body at intervals. Attach and form a partial cover frame body like a box lid with the center part punched out. The partial cover frame bodies are stacked in a heavy box shape and are slidable with each other. There is also a telescopic cover with a structure that moves the equipment.
[0007]
However, in the telescopic cover in which the partial covers of the plurality of thin metal plates described above are slidably overlapped, the both sides of the square frame of each partial cover frame cross over the entire surface when sliding. The contact area is large and the frictional resistance is strong, so the sliding performance is not good, there is a lot of noise due to metal contact, it is easy to break down as a telescopic cover, and it can cope with the complex movement of recent industrial equipment There was a problem that could not be done.
[0008]
In addition, many telescopic covers in which partial covers of a plurality of thin metal plates are slidably stacked have gaps between the partial covers. There is a problem that foreign matter and dust such as chips, spatter, etc. are mixed in, and the blade with a fixed blade uses a blade such as rubber, which has problems with the thickness, durability, and wear resistance of the blade. .
[0009]
In addition, a line of pantographs is attached to the telescopic cover, and attempts have been made to equalize sliding of each partial cover. However, simply attaching a line of pantographs does not give the telescopic cover straightness and tilts. There is a drawback in that it slides, and both ends of the telescopic cover collide with the inner surface of the frame to generate a metallic noise and do not slide uniformly.
[0010]
Therefore, in the applicant company, earnestly researched about the telescopic cover of the thin metal plate described above, and developed a telescopic cover having a multi-column pantograph, and filed a patent application (Japanese Patent Application No. 6-331389). The technical content of the invention is that “a telescopic cover formed by slidably laminating a plurality of thin plate-like partial covers is attached in parallel with two or more rows of pantographs at intervals, and the length of the telescopic cover is Slide the telescopic cover by attaching an industrial equipment movement mechanism to one of the longest cover or the shortest partial cover and a fixing mechanism to the other, or attaching an industrial equipment movement mechanism to both. With this improvement, the conventional telescopic cover described above can be used. It overcomes the drawbacks.
[0011]
In recent industrial machines, moving mechanisms such as spindle heads, beds, tables, columns, pistons, cylinders, and ATC covers are downsized, and these moving mechanisms are narrow due to demands for space economy and the like. Because it is often installed at a location, the telescopic cover must be reduced in size, and the space for attaching the pantograph is reduced, and there are situations where a plurality of pantographs cannot be attached. Only one pantograph must be attached and slid with the telescopic cover.
[0012]
However, if the telescopic cover is slid with only one pantograph attached, the pantograph is not straight, so the telescopic cover also swings and goes straight as described in the specification of the aforementioned patent application. There was a defect that the slidability was not stable.
[0013]
In addition, from the fact that the telescopic cover described above has to be reduced in size, the blades used to fix the telescopic cover, such as rubber that has been used in the past, have a thickness, durability, Due to problems with wear resistance, blades that are thin, durable and wear resistant have also been sought.
[0014]
[Problems to be solved by the invention]
The present invention solves the drawbacks of the conventional telescopic cover attached to the moving mechanism of the industrial machine described above, and only by attaching one pantograph to the telescopic cover, the partial cover of the telescopic cover is interlocked as a whole, The purpose is to make the sliding of the telescopic cover evenly and smooth, to give the straight movement to the sliding of the telescopic cover, to reduce the frictional resistance and the metal noise, and to stably reciprocate.
[0015]
In addition, the present invention uses a very thin, highly durable, wear-resistant blade of an ultra-thin metal plate as a blade to be fixed to the telescopic cover. In addition to preventing foreign matter and dust such as chips and spatter from entering between the gaps, the thickness of the blade is reduced to make the entire telescopic cover more compact, improving the durability and wear resistance of the blade. There is a purpose to do.
[0016]
[Means for Solving the Problems]
The present invention relates to a telescopic cover provided with a single pantograph, and a mechanism for moving industrial equipment by attaching a single pantograph to a telescopic cover formed by slidably laminating a plurality of thin plate-like partial covers. As the material of the thin plate-like partial cover of the telescopic cover is 17% Cr-2% Ni as a main component, the telescopic cover is slid integrally with the pantograph. 17% with a thickness of 0.1 to 3 mm as the material of the pantograph that uses a high-strength multi-layered structure stainless steel having a fine mixed structure of ferrite phase and hard martensite phase and is attached to a thin plate-like partial cover of a telescopic cover A soft ferrite phase and a hard martensite phase composed mainly of Cr-2% Ni Using high-strength multilayered stainless steel with a fine mixed structure, the sliding portion of the thin plate-like partial cover of the telescopic cover has a carbon content of 0.03-0.1% and a chromium content of 10-20%. The blade of the adjusted steel or stainless steel ultra-thin metal plate was fixed, and one of the mounting shafts of the pantograph was fixed to the partial cover of the telescopic cover, and the other mounting shaft of the pantograph was fixed to the partial cover of the telescopic cover The pantograph is slidably inserted into the slit of the slit plate.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
An example of a telescopic cover provided with a large number of blades according to the present invention will be described. When the telescopic cover 1 is attached to an industrial machine, as shown in FIG. 5 to 3 mm thin metal plate partial covers 2a, 2b, 2c and 2d are formed so as to be slidable, and a blade of an ultra thin metal plate is formed at the sliding portion at the end of each partial cover 2 to d. 3 is fixed.
[0018]
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, and the end portions of these partial covers 2 to d are slid. Although it is movably inserted into the holder, 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. The moving mechanism 4 of the industrial device 5 may be attached to the cover 2d.
[0019]
A single pantograph 7 is attached to the telescopic cover 1 to improve straightness and slidability as the telescopic cover 1. As an example of a mechanism for attaching the pantograph 7, as shown in FIG. A slit plate in which the mounting shaft 8 is fixed to the partial covers 2a to 2d of the telescopic cover 1, and the mounting sliding shaft 9 of the pantograph 7 is fixed to the partial covers 2a to 2d of the telescopic cover 1 as shown in FIG. 10 slits 11 are slidably inserted.
[0020]
As shown in FIG. 4, each of the partial covers 2a to 2d to which a plurality of ultrathin metal plate blades 3 are fixed is slid by pressing the sliding surface of the partial cover 2b. Further, the blade 3 of the partial cover 2b slides by pressing the sliding surface of the partial cover 2c. Hereinafter, the blade 3 of the partial cover 2c slides the sliding surface of the partial cover 2d. Are configured to slide while being pressed.
[0021]
The operation state of the telescopic cover 1 will be described. FIG. 3 shows a state in which the partial covers 2a to 2d of the pantograph 7 and the pantograph 7 are extended. As the movement mechanism 4 of the industrial machine 5 moves, the telescopic cover 1 Each of the partial covers 2a to e is contracted and the pantograph 7 is also contracted. At this time, the mounting shaft 8 of the pantograph 7 is fixed to the partial covers 2a to 2d of the telescopic cover 1 and does not move. The sliding shaft 9 slides the slit 11 of the slit plate 10 downward so that the partial covers 2a to 2e of the telescopic cover 1 are slid with linearity, and attached to the tip portion thereof. Chips and the like are discharged to the outside by sliding the blade 3.
[0022]
Next, according to the movement of the industrial machine 5 in the opposite direction of the moving mechanism 4, the partial covers 2 a to e of the telescopic cover 1 are extended and the pantograph 7 is also extended. At this time, the attachment shaft 9 of the pantograph 7 is In order to fix the telescopic cover 1 to the partial covers 2a to 2d and not to move, the mounting slide shaft 9 of the pantograph 7 slides the slit 11 of the slit plate 10 upward, whereby each partial cover 2a of the telescopic cover 1 is moved. ˜e is allowed to slide straight, and the chips 3 and the like are discharged to the outside by sliding of the blade 3 of the ultra-thin metal plate attached to the tip, and thereafter, the above-described operation is repeated.
[0023]
The material of the partial cover 2 of the metal thin plate of the telescopic cover 1 is a high-strength multilayered stainless steel having a soft ferrite phase, a hard martensite phase, and a fine mixed structure mainly composed of 17% Cr-2% Ni. By using it, the physical strength of the partial cover 2 is further increased.
[0024]
The number of the partial covers 2 of the metal thin plate of the telescopic cover 1 may be 3 to 30, and the width of the partial cover 2 is suitably 5 to 200 cm and the length is 5 to 50 cm (the width of each partial cover 2 and Further, the length of the partial cover 2 may be oval or circular in addition to the above-described rectangle.
[0025]
As the material of the pantograph 7, a high-strength multi-layered structure stainless steel having a fine mixed structure of a soft ferrite phase and a hard martensite phase mainly composed of 17% Cr-2% Ni is used. Increase physical strength.
[0026]
Further, as a material of the pantograph 7, a high-strength multilayered structure stainless steel having a fine mixed structure of a soft ferrite phase and a hard martensite phase, the main component being 17% Cr-2% Ni having a thickness of 0.1 to 3 mm. Using a connecting bar with 2 to 10 steel layers, the elasticity, springiness, and physical strength are further enhanced, and the deflection coefficient is further increased. Therefore, the pantograph 7 can be made highly elastic. In addition, even if an excessive force is applied to the pantograph 7, the thin and laminated spring and stainless steel sheet bars 12 can be twisted together to withstand and bend or break. However, the stretchability, slidability, and straightness of the pantograph 7 are further improved, and the pantograph 7 operates more stably and smoothly over a longer period of time.
[0027]
When the connecting bars stacked as the material of the pantograph 7 are made, once oil such as lubricating oil is once injected between the side surfaces thereof, the oil such as lubricating oil penetrates the entire 12 side surfaces of each connecting bar by capillary action. and go, the oil of lubricating oil or the like on the side surface of the connecting bars can hold always impregnation state, when the pantograph 7 slides, mutual non ne rear cushioning of each connection bar 12 is further improved.
[0028]
Furthermore, the oil of the lubricating oil oozes out from the side surfaces of the stacked connection bars, and the oil of the lubricating oil is continuously supplied to the periphery of each connection bar 12 and the mounting shaft 9. The slidability and straightness are further improved, the pantograph 7 can be operated more stably and smoothly for a longer period of time, and the connecting bar 12 and the mounting shaft 9 are not worn, and the noise is reduced. There will be no failure.
[0029]
As the blade 3 of an ultrathin metal plate, the blade 3 having a width of 0.5 to 3 cm, a length of 1 to 5 cm, and a plate thickness of 0.01 to 0.3 mm is slid at the end of the partial cover 2. It may be fixed to one side in front of the location, or a U shape on three sides, or a square shape on four sides, and a number of blades may be fixed at intervals of 1 to 3 mm. In this case, the number of blades 3 depends on the size of the partial cover 2, but in a normal case, 2 to 8/10 cm (per partial cover) is appropriate.
[0030]
As the material of the blade 3, steel or stainless steel containing 0.03 to 0.1% carbon and 10 to 20% chromium (hereinafter simply referred to as stainless steel having a low carbon content and a high chromium content) is used. This material is a recently developed new material and has excellent properties of high strength (tensile strength 2000 to 2000 N / mm 2). For example, Nisshin Steel's high strength stainless steel is SUS631, It is sold under the product numbers NSSHT1770, NSSHT1960, and NSSHT2000 (developed around March 1997).
[0031]
Also, stainless steel with low carbon content and high chromium content has excellent properties such as high hardness (wear resistance) and small strength loss due to welding. It is characterized in that it is used for an extremely thin, small and light blade 3 having a thickness of 0.01 to 0.3 mm.
[0032]
When the carbon content of the low carbon content and high chromium content stainless steel used as the blade 3 of the ultrathin metal plate is less than 0.03%, the weldability is further improved, but the blade 3 has a difficulty in hardness. In addition, if the carbon content of stainless steel exceeds 0.1%, it is inappropriate because the strength is lowered when the blade 3 is directly welded to the partial cover 2.
[0033]
Further, if the chromium content of the low carbon content and high chromium content stainless steel used as the blade 3 of the ultrathin metal plate is less than 10%, the blade 3 should have sufficient hardness (wear resistance). However, if the chromium content exceeds 20%, the hardness can be further increased, but the elasticity is difficult, which is inappropriate.
[0034]
Further, an ultrathin metal having a thickness of 0.01 to 0.3 mm (preferably 0.05 to 0.1 mm) of stainless steel having a low carbon content and a high chromium content used as the blade 3 of the ultrathin metal plate. When a plate is used, it is possible to make use of high strength (tensile strength), elasticity, etc. when used as a blade 3. The blade 3 is thin, small, lightweight, compact, and has a sliding surface of a telescopic cover. The contact area of the telescopic cover can be reduced, the frictional resistance can be reduced, and the driving power of the telescopic cover can be reduced without applying an extra load or load to the sliding portion or moving mechanism of the telescopic cover.
[0035]
One end portion of the blade 3 of the ultrathin metal plate is directly welded to the sliding portion of the end portion of the partial cover 2, and a portion protruding from the partial cover 2 (0.05 to 1 mm) is used as the blade. The shape of the blade 3 may be any shape as long as it is a flat plate shape and the tip portion of the blade 3 can protrude from the partial cover 2. Further, as means for welding one end portion of the blade 3 to the partial cover 2, electric spot welding or laser welding is preferable, but it goes without saying that other welding methods may be used.
[0036]
Further, for fixing the blade 3 of the ultra-thin metal plate to the sliding portion of the end portion of the partial cover 2, when the blade 3 of the ultra-thin metal plate is bent into a U shape or a U shape, The accuracy of the blade 3 is further improved, the waist of the blade 3 is further strengthened, more stable pressing performance can be maintained, and the sealing performance and wiping performance of fluids and dirt can be significantly improved.
[0037]
As another mechanism for loading the moving mechanism 4 such as the spindle head of the industrial machine 5 into the telescopic cover 1 to which a large number of blades 3 are fixed as described above, the end 2a or 2d of the partial cover of the telescopic cover 1 is cut off. A notch portion 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, and the notch portion may be combined to face the spindle head or the like of the industrial machine 5. The moving mechanism 4 may be inserted, and further, an installation port for loading the moving mechanism 4 such as the spindle head of the industrial machine 5 may be provided in the central cover of the telescopic cover 1.
[0038]
The pressure 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 case of the conventional blade made of metal plate made of stainless steel for spring and quenched ribbon steel. In the case of the blade 3 made of steel or stainless steel having a low carbon content and a high chromium content of an ultrathin metal plate, the pressure was 50 to 600 g (per 100 mm). The pressure is low, the frictional resistance is small, no extra load or load is applied to the blade 3 or the sliding surface 4 of the industrial machine 5, etc., and good sealing and wiping properties are exhibited.
[0039]
【The invention's effect】
According to the present invention, only by attaching a single pantograph to a telescopic cover made up of a plurality of partial covers, the partial covers can be interlocked at the same time by a buffering action and a braking action caused by the interlocking of the pantographs, etc. It can be moved smoothly at a distance, and the telescopic cover can be moved in a straight line, and can be slid smoothly. It is possible to completely prevent foreign matters such as powder and dust from being mixed in, and there is no risk of oil scattering or the danger of pinching workers' limbs and clothes.
[0040]
In addition, according to the present invention, the telescopic cover can be slid reciprocally stably by reducing the frictional resistance and the metal noise by the action of the pantograph described above, and particularly a space for mounting on recent compact industrial equipment. There is an advantage that it can be used in an optimum state as a telescopic cover with little.
[0041]
Further, according to the present invention, when each partial cover of the telescopic cover is made of high strength multi-layered stainless steel having a fine mixed structure of a soft ferrite phase and a hard martensite phase, each partial cover of the conventional telescopic cover is formed. Compared to the above, since each partial cover can be made thin, the distance between the partial covers of the telescopic cover can be reduced, the telescopic cover can be made compact as a whole, and the overall weight of the telescopic cover can be reduced. There are advantages.
[0042]
Furthermore, according to the present invention, the pantograph is manufactured as a material of a pantograph attached to the telescopic cover by using a high-strength multi-layer stainless steel having a fine mixed structure of a soft ferrite phase and a hard martensite phase. In addition to being able to reduce the shape and extremely light weight, the performance of the pantograph such as hardness, elasticity, physical strength and durability can be remarkably improved.
[0043]
Furthermore, according to the present invention, when using steel or stainless steel in which the carbon content and chromium content are adjusted within a predetermined range as the material of the blade of the ultra-thin metal plate fixed to each partial cover of the telescopic cover, Compared to other blades, the thickness of the blade can be drastically reduced, so the distance between the cover parts of the telescopic cover can be further reduced, and the telescopic cover can be made more compact as a whole. There is an excellent merit that the overall weight can be further reduced.
[0044]
In addition, the flade of steel or stainless steel with the carbon and chromium content adjusted to a predetermined range, the hardness, elasticity, physical strength, etc. are much higher and thinner than conventional cases, Due to the small contact area and low frictional resistance, there is an advantage that the durability, slidability, sealing performance, and sweeping performance of the blade can be improved to several levels compared to the conventional case. is there.
[Brief description of the drawings]
FIG. 1 is an explanatory view of a telescopic cover showing a state in which a blade is fixed to a plurality of rectangular partial covers.
FIG. 2 is an explanatory view showing a state in which a mounting slide shaft of a pantograph is slidably inserted into a slit plate fixed to a partial cover of a telescopic cover.
FIG. 3 is an explanatory view showing a state in which one pantograph is provided and extended on a telescopic cover including a plurality of rectangular partial covers.
FIG. 4 is an explanatory view showing a sliding state of a blade fixed to a partial cover of a telescopic cover.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Telescopic cover 2 Partial cover 3 Blade 4 Movement mechanism 5 Industrial mechanism 6 Fixing mechanism 7 Pantograph 8 Mounting shaft 9 Mounting sliding shaft
10 Slit plate
11 Slit

Claims (1)

About attaching a single pantograph to a telescopic cover formed by slidably laminating multiple thin plate-shaped partial covers, and sliding the telescopic cover integrally with the pantograph according to the movement of the movement mechanism of industrial equipment As a material of a thin plate-like partial cover of a telescopic cover, high strength having a fine mixed structure of a soft ferrite phase and a hard martensite phase mainly comprising 17% Cr-2% Ni having a thickness of 0.5 to 3 mm Using a multi-layered stainless steel, the material of the pantograph attached to the thin plate-like partial cover of the telescopic cover is composed of 17% Cr-2% Ni with a thickness of 0.1 to 3 mm as the main component and a soft ferrite phase and hard martens. Using high-strength, multi-layered stainless steel with a fine mixed structure with the site phase, telescopic cover -At the sliding part of the thin plate-shaped partial cover, a blade of an iron or stainless steel ultra-thin metal plate adjusted to a carbon content of 0.03 to 0.1% and a chromium content of 10 to 20% is fixed. Telescopic with a pantograph that fixes one of the pantograph's mounting shafts to the partial cover of the telescopic cover and slidably inserts the other mounting shaft of the pantograph into the slit of the slit plate fixed to the partial cover of the telescopic cover cover.

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