JP2001132750A - Oilless wear plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a miniaturized oilless wear plate which is superior in the lubricating effect with the low cost. SOLUTION: In an oilless wear plate obtained by forming a mounting hole 12 on a metallic base 11, and embedding a solid lubricant 14 in a recessed hole 15 formed on a sliding surface 13 of the metallic base 11, oil grooves 16 are evenly and equally formed on the whole sliding surface 13, and every parts of oil grooves 16 are not contacted with side edges 13a of the sliding surface 13, and are not communicated with the mounting hole 12 and the recessed hole 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an oil-less wear plate used for a sliding surface of a machine tool, a press die, an industrial machine, an apparatus machine, a food machine, a spinning machine, or the like.

[0002]

2. Description of the Related Art A description will be given with reference to FIGS.
For example, in a punch slide 20 of a machine tool, an oilless wear plate 30 that does not require lubrication is attached to a sliding surface between a fixed portion 21 and a slide portion 22.

[0003] This oil-less wear plate 30
A plurality of mounting holes 32 are formed in the metal base 31 using cast iron or a special copper alloy as the metal base 31, and a sliding contact surface 33 is formed.
A solid lubricant 34 formed by sintering graphite, molybdenum disulfide, or the like is embedded in the plurality of recesses 35 formed in the above-described embodiment. For example, when the oil-less wear plate 30 attached to the fixed portion 21 slides on the slide portion 22 by the operation of the machine tool, the slide portion 22 smoothly repeats reciprocating motion due to a lubricating component oozing out from the solid lubricant 34. Can be. The conventional oilless wear plate 30 is attached to a machine tool such as the die press 20 or a food machine or a spinning machine and plays an important role.

However, in recent years where technical development is desired in all fields, conventional oilless wear plates 3
0 is no exception, and the appearance of a low-priced, small-sized product with higher lubrication cost is desired.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been made in view of such a demand, and aims to make a conventional oil-less wear plate more lubricating, more expensive, and smaller in size at a lower price. And

[0006]

A description will be given with reference to FIGS. 1 and 3 to 5. In the first invention, a mounting hole 12 is formed in a metal base 11 and a sliding contact surface 1 of the metal base 11 is provided.
3 is an oil-less wear plate 10 in which a solid lubricant 14 is embedded in a concave hole 15 formed in the sliding contact surface 1.
An oil groove 16 running evenly over the entirety is engraved in 3, and no part of the oil groove 16 penetrates from the sliding contact surface 13, and does not communicate with the mounting hole 12 and the concave hole 15.

In a second aspect of the present invention, in the first aspect, the oil basin 1 communicates with the recess 15 immediately below the recess 15.
7, the oil basin 17 is filled with the lubricating oil G, and the lubricating oil G in the oil jar 17 is sealed with the solid lubricant 14 buried in the concave hole 15.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION For one embodiment of the present invention,
This will be described with reference to FIG. 1 and FIGS. The oil-less wear plate 10 is attached to a fixing portion 21 of a punch slide 20 in a press, and the fixing portion 2
1 slides in contact with the slide portion 22 when reciprocating, and is constituted mainly by a metal base 11 made of ductile cast iron. The metal base 11 is, for example, 100 m
It is a flat plate of mx 75 mm x 10 mm.

In the present embodiment, the metal base 11 is provided with a mounting hole 12 for mounting to the fixing portion 21 with the screw 18. In addition, a solid lubricant 14 formed by mixing and sintering graphite, molybdenum disulfide, copper, and the like is formed in a recess 15 formed in the sliding contact surface 13 of the metal base 11.
Is buried. Then, the sliding contact surface 13 runs evenly on the entire sliding contact surface 13, for example, at a depth of about 0.3 m.
m oil grooves 16 are engraved. This oil groove 16 does not penetrate any part of the oil groove 16 to the side edge 13a of the sliding contact surface 13,
Further, it is set so as not to communicate with the mounting hole 12 and the concave hole 15.

Further, an oil pot 17 communicating with the concave hole 15 is formed directly below the concave hole 15 in the oil-less wear plate 10, and a lubricating oil G
Is filled. The recess 15 is filled with a solid lubricant 14 impregnated with a lubricating oil, and is sealed so that the lubricating oil G in the oil pot 17 does not leak.

The operation of the oilless wear plate 10 according to this embodiment will be described. When the oil-less wear plate 10 is attached to, for example, a fixed portion 21 of a punch slide in a press, when the punch slide is operated, the slide portion 22 reciprocates, and the oil-less wear plate 10 comes into sliding contact with the slide portion 22.

At this time, the solid lubricant 14 contains a large amount of lubricating oil previously impregnated or absorbed from the oil jar 17 in addition to the lubricating components originally contained therein. As a result, the lubricating oil film (including a lubricating component) is formed on the sliding contact surface 13. As a result, smooth reciprocation of the slide portion 22 is achieved. The oil groove 16 is provided on the sliding contact surface 13.
The lubricating oil is uniformly distributed over the entire area of the sliding contact surface 13 because the entirety is uniformly arranged.

The lubricating oil that has oozed from the solid lubricant 14 to the sliding surface 13 accumulates in the oil groove 16 and is supplied to the sliding surface 13 in the same manner as the lubricating oil that oozes from the solid lubricant 14, so that the sliding portion 22 can be smoothed. Allows reciprocation. That is, the sliding contact surface 1
3, the lubricating oil is supplied from both the solid lubricant 14 and the oil groove 16, so that the lubricating effect is enhanced.

Since the oil groove 16 does not penetrate to the side edge 13a of the sliding contact surface 13 in any part thereof and does not communicate with the mounting hole 12 and the concave hole 15, the lubricant accumulated in the oil groove 16 is formed. Does not escape from the sliding contact surface 13 through the oil groove 16. Therefore, sufficient lubricating oil is always supplied to the sliding contact surface 13.

In this embodiment, the oil basin 17 is formed immediately below the concave hole 15 and the lubricating oil G is filled therein. Then, it is supplied to the sliding contact surface 13. Therefore, a sufficient amount of lubricating oil is always supplied to the sliding contact surface 13, and the lubricating effect is further enhanced.

Further, by providing the oil groove 16 on the sliding surface 13 of the metal base 11, the oil-less wear plate 10 can be made inexpensive and small.
That is, since the oil groove 16 is not provided in the conventional oilless wear plate 10, it is necessary to embed a large number of solid lubricants 14 in order to sufficiently supply the lubricating component to the entire area of the sliding surface 13. was there. Accordingly, a step of forming a large number of concave holes 15 and a step of burying a large number of solid lubricants 14 and the like are required, so that the cost cannot be reduced. On the other hand, the formation of the oil groove 16 in the oil-less wear plate 10 of the present invention is easier than the operation of forming the concave hole 15 and burying the solid lubricant 14 therein, Since the number of agents 14 can be reduced, the cost can be reduced.

Incidentally, in the oilless wear plate 10 of the same size, in the conventional one, it was necessary to provide 16 solid lubricants 14 as shown in FIG. 2, but in the present invention having the oil groove 16, As shown in FIG. 3, the lubrication effect equivalent to or higher than that of the conventional one can be exhibited only by providing ten lubrication units.

In the conventional oil-less wear plate 10 having the 16 solid lubricants 14, the solid lubricant 14 occupies about 30% of the entire area of the sliding contact surface 13, whereas the solid lubricant 14 of the present invention has It occupies only about 15% (less than 20% even if the area of the oil groove 16 is added). Therefore, assuming that the substantial area of the sliding contact surface 13 is set to 70% of the total area, the sliding contact surface 13 of the oil-less wear plate 10 according to the present invention can be made smaller than the current state, and therefore, the oil-less wear can be performed. The size of the entire plate 10 can be reduced. The small oilless wear plate 10 is naturally inexpensive, and therefore, it is economical to install it in a place where the sliding distance is short.

[0019]

According to the first and second aspects of the present invention, the sliding surface 13 of the metal base 11 is
Since the oil groove 16 which does not penetrate to a and does not communicate with the mounting hole 12 and the concave hole 15 is formed, lubricating oil and a lubricating component can be supplied from the oil groove 16 to the sliding contact surface 13. Therefore, the lubrication effect can be further improved. In addition, since the number of the solid lubricants 14 can be reduced by providing the oil groove 16, the cost can be reduced and the size can be reduced.

According to the second aspect of the present invention, the oil basin 17 is formed immediately below the concave hole 15, and the oil basin 17 is filled with lubricating oil and sealed with the solid lubricant 14 embedded in the concave hole 15. This lubricating oil can be supplied to the sliding contact surface 13 via the solid lubricant 14, so that the lubricating effect can be further improved.

[Brief description of the drawings]

FIG. 1 is a partial sectional view showing a punch slide to which an oilless wear plate is attached.

FIG. 2 is a plan view showing a conventional example.

FIG. 3 is a plan view showing an embodiment of the present invention.

FIG. 4 is a sectional view taken along line AA of the present invention shown in FIG.

5 is a partially enlarged sectional view of the present invention shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Oilless wear plate 11 Metal base 12 Mounting hole 13 Sliding contact surface 13a Side edge 14 Solid lubricant 15 Concave hole 16 Oil groove 17 Oil pot 18 Screw 20 Punch slide 21 Fixed part 22 Slide part 30 Oilless wear plate 31 Metal base 32 Mounting hole 33 Sliding surface 34 Solid lubricant 35 Concave hole G Lubricating oil

Claims (2)

[Claims] 1. A mounting hole (12) is formed in a metal base (11), and a solid lubricant (14) is embedded in a recess (15) formed in a sliding contact surface (13) of the metal base. An oil-less wear plate having an oil groove (16) running evenly and uniformly on the sliding contact surface, and no part of the oil groove penetrating to the side edge (13a) of the sliding contact surface, An oil-less wear plate that does not communicate with the mounting hole and the concave hole. 2. An oil pot (17) is formed immediately below the concave hole (15) so as to communicate with the concave hole.
Solid lubricant filled in the concave hole (14)
The oil-less wear plate according to claim 1, wherein lubricating oil in the oil pot is sealed.