CN214698834U

CN214698834U - Special bearing for chuck of laser cutting machine

Info

Publication number: CN214698834U
Application number: CN202120922779.8U
Authority: CN
Inventors: 魏纪伟; 徐卫东
Original assignee: Luoyang Boying Bearing Co ltd
Current assignee: Luoyang Boying Bearing Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-11-12
Anticipated expiration: 2031-04-30

Abstract

The utility model discloses a laser cutting machine chuck special bearing, including outer lane and bearing inner circle: the special bearing for the chuck of the laser cutting machine ensures the positioning accuracy of the chuck on a workbench and prevents the position of the chuck of the laser cutting machine from deviating in the working process by developing the special bearing; the utility model adopts the whole framework sealing, improves the sealing structure, and has a 0.2mm gap between the contact surface of the inner ring of the whole framework sealing and the bottom surface of the sealing ring, so as to improve the sealing reliability; the size precision of the contact part between the inner ring and the outer ring and the sealing part is adjusted, so that the contact is tighter, and the sealing performance is further improved.

Description

Special bearing for chuck of laser cutting machine

Technical Field

The utility model relates to a cross roller bearing technical field specifically is a special bearing of laser cutting machine chuck.

Background

The laser cutting machine consists of a bed frame, a transverse support, a screen plate and a laser chuck, wherein the laser chuck is an important component of the laser cutting machine. At present, two sets of bearings are required to be installed on most of chuck parts of laser cutting machines, and the chuck parts of the laser cutting machines are small and limited in installation position, so that the two sets of bearings are very difficult to install and use, the size of the chuck needs to be increased, and the use of the chuck is inconvenient; meanwhile, the original laser chuck bearing is poor in sealing performance and easy to deform, foreign matters enter the inside of the bearing in the process of processing products, the processing precision of the bearing is affected, and even the bearing is failed and scrapped.

Chinese patent No. CN209041328U discloses a special crossed cylindrical roller bearing for a high-grade numerical control machine, which comprises an outer ring and an inner ring; the sealing block is adopted for sealing during manufacturing, the sealing effect is poor, the structural strength of the sealing block is low, and deformation is easy to occur under the action of external force.

Disclosure of Invention

The technical problem to be solved by the utility model is to overcome the existing defects, and provide a special bearing for a laser cutting machine chuck, by improving the sealing structure of the bearing; a0.2 mm gap is formed between the contact surface of the inner ring and the bottom surface of the sealing ring, so that the contact between the inner ring and the sealing step is ensured, and the precision of the contact parts between the inner ring and the sealing part is adjusted, so that the problems in the background art can be effectively solved.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a laser cutting machine chuck special bearing, includes outer lane and bearing inner circle: the outer ring is sleeved on the outer side surface of the bearing inner ring, the crossed rollers are arranged between the outer ring and the outer side surface of the bearing inner ring, the outer side surface of the outer ring is provided with a lubricating oil injection hole, the lubricating oil injection hole is communicated with a retainer of the crossed rollers, the upper end and the lower end of the outer side surface of the outer ring and the outer side surface of the bearing inner ring are respectively provided with a sealing framework positioning groove, the number of the sealing frameworks is two, the two sealing frameworks are arranged in an up-and-down symmetrical mode, the sealing framework positioning grooves comprise a first annular groove, a ring groove and a second annular groove, the first annular groove is arranged on the outer side surface of the outer ring, the ring groove and the second annular groove are arranged on the outer side surface of the bearing inner ring, one end of each sealing framework is clamped in the ring groove, the other end of each sealing framework is tightly attached to the inner side wall of the first annular groove, each sealing framework comprises an annular steel plate and a rubber framework, rubber skeleton parcel is equipped with annular breach at the lateral surface of annular steel sheet, rubber skeleton's lateral surface upper end edge, and rubber skeleton's lateral surface upper end is close to central point and puts the dust groove.

Furthermore, the middle part of the outer side surface of the bearing inner ring is provided with threaded holes, the number of the threaded holes is not less than two, and the threaded holes which are not less than two are uniformly distributed on the outer side surface of the threaded holes.

Furthermore, plug holes are formed in the outer side surfaces of the outer ring and the bearing inner ring and close to one ends of the crossed rollers, plugs are arranged in the plug holes, and the plugs pass through taper pins.

Further, a spacer block is arranged between the adjacent crossed rollers.

Furthermore, an outer ring positioning hole is formed in the middle of the outer side face of the outer ring.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the special bearing for the chuck of the laser cutting machine ensures the positioning accuracy of the chuck on the workbench and prevents the position of the chuck of the laser cutting machine from deviating in the working process by developing the special bearing; and the laser cutting quality is improved, and the rejection rate of laser cutting processing of the workpiece is reduced.

2. The utility model adopts the integral framework sealing, and improves the sealing structure, and the contact surface of the sealing inner ring of the integral framework sealing has a 0.2mm gap with the bottom surface of the sealing ring, so as to improve the sealing reliability; the size precision of the contact part between the inner ring and the outer ring and the sealing part is adjusted, so that the contact is tighter, and the sealing performance is further improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a partially enlarged view of the position A of the present invention;

fig. 3 is a schematic view of a sealing framework structure.

In the figure: the bearing comprises an outer ring 1, a lubricating oil injection hole 2, an outer ring positioning hole 3, a sealing framework 4, a bearing inner ring 5, a plug hole 6, a taper pin 7, an isolation block 8, a threaded hole 9, a crossed roller 10, a first annular groove 11, an annular groove 12, an annular groove 13, a second annular groove 14, an annular notch 14, an annular steel plate 15, a dust-proof groove 16 and a rubber framework 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, when a feature is referred to as being "disposed," "fixed," or "connected" to another feature, it can be directly disposed, fixed, or connected to the other feature or be indirectly disposed, fixed, or connected to the other feature.

Referring to fig. 1-3, the present invention provides a technical solution: a special bearing for a chuck of a laser cutting machine comprises an outer ring 1 and a bearing inner ring 5, wherein the outer ring 1 and the bearing inner ring 5 adopt 42CrMo to replace the original steel 50Mn material, the special bearing has high strength and toughness, better hardenability and no obvious temper brittleness, has higher fatigue limit and multiple impact resistance after quenching and tempering treatment, and good low-temperature impact toughness, the outer ring 1 is sleeved on the outer side surface of the bearing inner ring 5, cross rollers 10 are arranged between the outer side surfaces of the outer ring 1 and the bearing inner ring 5, a lubricating oil injection hole 2 is arranged on the outer side surface of the outer ring 1, the lubricating oil injection hole 2 is communicated with a retainer of the cross rollers 10, threaded holes 9 are arranged in the middle of the outer side surface of the bearing inner ring 5, the number of the threaded holes 9 is not less than two, the not less than two threaded holes 9 are uniformly distributed on the outer side surface of the threaded holes 9, and plug holes 6 are arranged at one ends, close to the cross rollers 10, of the outer side surfaces of the outer ring 1 and the bearing inner ring 5, the plug hole 6 is internally provided with a plug, the plug passes through a taper pin 7, an isolation block 8 is arranged between adjacent crossed rollers 10, the middle part of the outer side surface of the outer ring 1 is provided with an outer ring positioning hole 3, the upper and lower ends of the outer side surfaces of the outer ring 1 and the bearing inner ring 5 are respectively provided with a sealing framework positioning groove, the inner parts of the sealing framework positioning grooves are respectively provided with a sealing framework 4, the number of the sealing frameworks 4 is two, the two sealing frameworks 4 are symmetrically arranged up and down, the sealing framework positioning grooves comprise a first annular groove 11, an annular groove 12 and a second annular groove 13, the first annular groove 11 is arranged on the outer side surface of the outer ring 1, the annular groove 12 and the second annular groove 13 are arranged on the outer side surface of the bearing inner ring 5, one end of the sealing framework 4 is clamped in the annular groove 12, the other end of the sealing framework 4 is tightly attached to the inner side wall of the first annular groove 11, the sealing framework 4 comprises an annular steel plate 15 and a rubber framework 17, rubber skeleton 17 parcel is at the lateral surface of annular steel sheet 15, and rubber skeleton 17's lateral surface upper end edge is equipped with annular breach 14, and rubber skeleton 17's lateral surface upper end is close to central point and has been put dustproof groove 16, the utility model discloses a sealing washer design adopts whole skeleton seal, improves its stability in use on the one hand, avoids unusual phenomena such as coming off, improves its structure on the other hand, makes whole skeleton seal inner circle contact surface and sealing washer bottom surface have 0.2mm clearance, reduces its and the friction of inner circle seal step to form the oil film and improve its sealing performance.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A special bearing for a chuck of a laser cutting machine comprises an outer ring (1) and a bearing inner ring (5): outer lane (1) cup joints the lateral surface at bearing inner race (5), is equipped with cross roller (10) between the lateral surface of outer lane (1) and bearing inner race (5), and the lateral surface of outer lane (1) is equipped with lubricating oil filling hole (2), and lubricating oil filling hole (2) communicates with each other with the holder of cross roller (10), its characterized in that: the outer ring (1) and the bearing inner ring (5) are provided with sealing framework positioning grooves at the upper end and the lower end, the sealing framework positioning grooves are arranged inside the sealing framework positioning grooves, the sealing frameworks (4) are arranged in two numbers and are symmetrically arranged up and down on the two sealing frameworks (4), each sealing framework positioning groove comprises a first annular groove (11), an annular groove (12) and a second annular groove (13), the first annular groove (11) is arranged on the outer side surface of the outer ring (1), the annular grooves (12) and the second annular grooves (13) are arranged on the outer side surface of the bearing inner ring (5), one end of each sealing framework (4) is clamped in the annular groove (12), the other end of each sealing framework (4) is tightly attached to the inner side wall of the first annular groove (11), each sealing framework (4) comprises an annular steel plate (15) and a rubber framework (17), and the rubber framework (17) is wrapped on the outer side surface of the annular steel plate (15), the edge of the upper end of the outer side surface of the rubber framework (17) is provided with an annular gap (14), and the upper end of the outer side surface of the rubber framework (17) is provided with a dustproof groove (16) close to the central position.

2. The special bearing for the chuck of the laser cutting machine according to claim 1, wherein: threaded holes (9) are formed in the middle of the outer side face of the bearing inner ring (5), the number of the threaded holes (9) is not less than two, and the threaded holes (9) which are not less than two are evenly distributed in the outer side face of each threaded hole (9).

3. The special bearing for the chuck of the laser cutting machine according to claim 1, wherein: and plug holes (6) are formed in one ends, close to the crossed rollers (10), of the outer side surfaces of the outer ring (1) and the bearing inner ring (5), plugs are arranged in the plug holes (6), and the plugs pass through taper pins (7).

4. The special bearing for the chuck of the laser cutting machine according to claim 1, wherein: and a spacer block (8) is arranged between the adjacent crossed rollers (10).

5. The special bearing for the chuck of the laser cutting machine according to claim 1, wherein: and an outer ring positioning hole (3) is formed in the middle of the outer side surface of the outer ring (1).