CN211867479U - A New Independent Grinding Spindle for Cylindrical Grinding - Google Patents

Abstract

The utility model discloses a novel independent grinding spindle for cylindrical grinding. The novel cylindrical grinding independent grinding spindle includes: a cylindrical grinding machine spindle body, a first rolling bearing, a second rolling bearing and a spindle housing; the two ends of the central region of the cylindrical grinding machine spindle body are respectively provided with a first bearing mounting part and a second bearing mounting part. Bearing installation part, the diameters of the first bearing installation part and the second bearing installation part are smaller than the diameter of the central area of the main shaft body of the cylindrical grinder, the first bearing installation part is sleeved with one or more first rolling bearings, the second bearing installation One or more second rolling bearings are sleeved on the upper part, and the main shaft body of the cylindrical grinder is arranged inside the main shaft housing. The utility model utilizes the first rolling bearing and the second rolling bearing to replace the traditional static pressure main shaft or the structure of the dynamic and static pressure main shaft and the copper sleeve, and has the advantages of low power consumption, convenient maintenance, low cost and high precision.

Description

A New Independent Grinding Spindle for Cylindrical Grinding

technical field

The utility model relates to the technical field of mechanical processing, in particular to a novel independent grinding spindle for cylindrical grinding.

Background technique

Cylindrical grinder is a grinder used to grind the outer circumference of a workpiece, and it is widely used. Cylindrical grinders are generally composed of cast iron bed, worktable, tailstock, grinding wheel holder for installing grinding wheels, transverse feed mechanism for controlling the size of grinding workpieces, electrical and hydraulic devices for controlling the movement of machine tool moving parts, etc. component composition. With the increase in the number of high-precision, high-hardness mechanical parts and the development of precision casting and precision forging technology, the performance and variety of cylindrical grinders have continued to increase.

The cylindrical grinder spindle is an important part of the cylindrical grinder. Please refer to FIG. 1 to FIG. 3 , which are schematic structural diagrams of a conventional cylindrical grinder spindle. The cylindrical grinder main shaft includes a main shaft part 100 , a left end bearing 200 , a right end bearing 300 , a left end copper sleeve 400 and a right end copper sleeve 500 . The left end bearing 200 and the right end bearing 300 are respectively disposed on both ends of the main shaft portion 100 , the left end copper sleeve 400 is sleeved outside the left end bearing 200 , and the right end copper sleeve 500 is sleeved outside the right end bearing 300 . The left end bearing 200 and the right end bearing 300 may be a hydrostatic main shaft or a hydrostatic main shaft. The spindle of the cylindrical grinder is arranged in the headstock, and the copper sleeve 400 at the left end and the copper sleeve 500 at the right end are installed in the headstock.

The above-mentioned cylindrical grinder spindle has the following problems in actual work: the matching relationship between the left end copper sleeve 400 and the right end copper sleeve 500 and the left end bearing 200 and the right end bearing 300 of the main shaft part 100 is precisely adjusted, so that the main shaft part 100 can be normal run. Once the copper sleeve 400 at the left end or the copper sleeve 500 at the right end is damaged, it is difficult to solve the problem by replacing the copper sleeve alone, which often leads to the unusable use of the entire spindle of the cylindrical grinder, which reduces the service life of the spindle of the cylindrical grinder and increases the maintenance costs.

Utility model content

The purpose of this utility model is to provide a novel cylindrical grinding independent grinding spindle, so as to solve the problem that when the copper sleeve of the existing cylindrical grinding machine spindle is damaged, it is difficult to solve the problem by replacing the copper sleeve alone, which often leads to the whole external cylindrical grinding machine. The spindle of the cylindrical grinder cannot be used, which reduces the service life of the spindle of the cylindrical grinder and increases the maintenance cost.

The utility model provides a novel cylindrical grinding independent grinding spindle, comprising: a cylindrical grinding machine spindle body, a first rolling bearing, a second rolling bearing and a spindle casing;

Both ends of the central region of the main shaft body of the cylindrical grinder are respectively provided with a first bearing installation part and a second bearing installation part, and the diameter of the first bearing installation part and the second bearing installation part is smaller than that of the outer circle The diameter of the central area of the main shaft body of the grinder; the first bearing installation part is sleeved with a first rolling bearing, and the second bearing installation part is sleeved with a second rolling bearing; the cylindrical grinder main shaft body is disposed on the Inside the main shaft housing, the first rolling bearing and the second rolling bearing are fixed in the main shaft housing;

One end of the main shaft body of the cylindrical grinder further includes a grinding wheel flange mounting portion connected with the first bearing mounting portion, and a first locking nut fixing portion connected with the grinding wheel flange mounting portion; the external cylindrical The other end of the main shaft body of the grinding machine further includes a pulley mounting portion connected with the second bearing mounting portion, and a second locking nut fixing portion connected with the pulley mounting portion.

The grinding wheel flange mounting portion and the pulley mounting portion protrude from both ends of the main shaft housing, and the end of the main shaft housing close to the grinding wheel flange mounting portion is provided with a dust-proof and waterproof outer cover. The dust and waterproof outer cover can be rotated relative to the main shaft housing;

A bed fixing part is connected to the outside of one end of the main shaft shell close to the grinding wheel flange mounting part, and the bed fixing part is provided with locking screw holes; the main shaft shell is close to the pulley mounting part. One end is provided with an external thread on the outside, and the external thread is used for connecting the locking nut.

Optionally, the number of the first rolling bearing and the second rolling bearing is one or more respectively.

Optionally, the first rolling bearing and the second rolling bearing are one or a combination of two of an angular contact bearing, a roller bearing or a plane bearing.

Optionally, the diameters of the first bearing mounting portion and the second bearing mounting portion are the same or different, and the sizes of the first rolling bearing and the second rolling bearing are the same or different.

The utility model has the following beneficial effects: the utility model provides a novel cylindrical grinding independent grinding spindle, by respectively arranging a first bearing mounting part and a second bearing mounting part at both ends of the central region of the cylindrical grinding machine spindle body, and One or more first rolling bearings are sleeved on the first bearing installation part, and one or more second rolling bearings are sleeved on the second bearing installation part, so that the rolling bearing can be used to replace the static pressure spindle or the structure of the dynamic and static pressure spindle plus the copper sleeve , while maintaining the normal rotation of the main shaft of the cylindrical grinder, the rigidity and precision of the main shaft structure of the cylindrical grinder are improved. Moreover, when the first rolling bearing or the second rolling bearing is worn or damaged, the first rolling bearing or the second rolling bearing can be replaced independently without replacing the entire spindle of the cylindrical grinder, which is convenient for replacement, reduces the maintenance cost, and has low power consumption and high precision. high.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only of the present invention. For some embodiments of the present invention, for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic diagram of a conventional cylindrical grinder spindle.

FIG. 2 is a schematic diagram of the left end bearing and the right end bearing of the main shaft of the conventional cylindrical grinder.

FIG. 3 is a schematic diagram of the left end copper sleeve and the right end copper sleeve of the main shaft of the conventional cylindrical grinder.

FIG. 4 is a perspective view of a novel cylindrical grinding independent grinding spindle provided by the utility model.

FIG. 5 is a schematic diagram of a novel cylindrical grinding independent grinding spindle provided by the utility model.

FIG. 6 is a schematic diagram of the main body of the cylindrical grinder.

Figure 7 is a schematic diagram of the first bearing and the second bearing.

FIG. 8 is a schematic view of the installation of the main shaft body of the cylindrical grinder and the first bearing and the second bearing.

Description: 1- Spindle body of cylindrical grinder; 2- First rolling bearing; 3- Second rolling bearing; 4- Spindle housing; 11- First bearing mounting part; 12- Second bearing mounting part; 13- Grinding wheel flange Installation part; 14- First lock nut fixing part; 15- Pulley installation part; 16- Second lock nut fixing part; 5- Dustproof and waterproof outer cover; 41- Bed fixing part; 42- Locking screw hole ; 43-external thread; 6-lock nut; 100-main shaft; 200-left bearing; 300-right bearing; 400-left copper sleeve; 500-right copper sleeve.

Detailed ways

It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the following detailed description is exemplary and intended to provide further explanation of the application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

For ease of description, spatially relative terms, such as "on", "over", "on the surface", "above", etc., may be used herein to describe what is shown in the figures. The spatial positional relationship of one device or feature shown to other devices or features. It should be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or features would then be oriented "below" or "over" the other devices or features under other devices or constructions". Thus, the exemplary term "above" can encompass both an orientation of "above" and "below." The device may also be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, layers are exaggerated for clarity and the thicknesses of the regions, and the same reference numerals are used to denote the same devices, and thus their descriptions will be omitted.

Referring to FIGS. 4 to 8 , an embodiment of the present invention provides a novel cylindrical grinding independent grinding spindle, including: a cylindrical grinding machine spindle body 1 , a first rolling bearing 2 , a second rolling bearing 3 and a spindle housing 4 .

Wherein, both ends of the central area of the main shaft body 1 of the cylindrical grinder are respectively provided with a first bearing mounting portion 11 and a second bearing mounting portion 12, and the diameters of the first bearing mounting portion 11 and the second bearing mounting portion 12 are smaller than that of the cylindrical grinder. The diameter of the central region of the spindle body 1 . The first bearing mounting part 11 is sleeved with the first rolling bearing 2, and the second bearing mounting part 12 is sleeved with the second rolling bearing 3. The number of the first rolling bearing 2 and the second rolling bearing 3 can be one or more respectively. An appropriate number of the first rolling bearings 2 and the second rolling bearings 3 may be provided according to the lengths of the first bearing mounting portion 11 and the second bearing mounting portion 12 .

Specifically, the first rolling bearing 2 and the second rolling bearing 3 may be one or a combination of two of an angular contact bearing, a roller bearing or a plane bearing. The diameters of the first bearing mounting portion 11 and the second bearing mounting portion 12 are the same or different, and the dimensions of the first rolling bearing 2 and the second rolling bearing 3 are the same or different.

The cylindrical grinder main shaft body 1 is arranged inside the main shaft housing 4 , and the first rolling bearing 2 and the second rolling bearing 3 are fixed in the main shaft housing 4 . The main shaft housing 4 has a cylindrical cylindrical structure. One end of the cylindrical grinder spindle body 1 further includes a grinding wheel flange mounting portion 13 connected with the first bearing mounting portion 11 , and a first locking nut fixing portion 14 connected with the grinding wheel flange mounting portion 13 . The grinding wheel flange mounting portion 13 has a conical structure, and the diameter of the grinding wheel flange mounting portion 13 gradually decreases toward the end. The grinding wheel flange mounting portion 13 is used for mounting the grinding wheel flange, and the first locking nut fixing portion 14 is used for mounting the locking nut.

The other end of the cylindrical grinder spindle body 1 further includes a pulley mounting portion 15 connected with the second bearing mounting portion 12 , and a second locking nut fixing portion 16 connected with the pulley mounting portion 15 . The pulley mounting portion 15 is used for mounting the pulley, and the second locking nut fixing portion 16 is used for mounting the locking nut.

The grinding wheel flange mounting portion 13 and the pulley mounting portion 15 protrude from both ends of the spindle housing 4, and one end of the spindle housing 4 close to the grinding wheel flange mounting portion 13 is provided with a dust-proof and waterproof outer cover 5, and the dust-proof and waterproof outer cover 5 can be used. Rotate relative to the spindle housing 4 .

A bed fixing portion 41 is connected to the outside of one end of the spindle housing 4 close to the grinding wheel flange mounting portion 13 . The bed fixing portion 41 is in the shape of a disc. The fixing of the bed fixing portion 41 and the bed is realized by arranging locking screws in the locking screw holes 42 . One end of the main shaft housing 4 close to the pulley mounting portion 15 is provided with an external thread 43 , and the external thread 43 is used to connect the locking nut 6 .

The working principle of the new cylindrical grinding independent grinding spindle of the present invention is as follows: the cylindrical grinding machine spindle body 1 is rotatably arranged inside the spindle housing 4 through the first rolling bearing 2 and the second rolling bearing 3 . The main shaft housing 4 can be fixed with the bed through the bed fixing part 41, the grinding wheel flange and the grinding wheel are mounted on the grinding wheel flange mounting part 13, the pulley is mounted on the pulley mounting part 15, and the motor on the bed is driven by a belt and a pulley. The main shaft body 1 of the cylindrical grinder is driven to rotate, and the main shaft body 1 of the cylindrical grinder rotates inside the main shaft housing 4 under the action of the first rolling bearing 2 and the second rolling bearing 3, thereby driving the grinding wheel at the end to rotate.

The new cylindrical grinding independent grinding spindle of the present utility model uses the first rolling bearing 2 and the second rolling bearing 3 to replace the structure of the static pressure spindle or the dynamic and static pressure spindle plus the copper sleeve in the traditional cylindrical grinding independent grinding spindle. While the normal rotation of the cylindrical grinder spindle body 1, the rigidity and precision of the cylindrical grinder spindle structure are improved. In addition, when the first rolling bearing 2 or the second rolling bearing 3 is worn or damaged, the first rolling bearing 2 or the second rolling bearing 3 can be replaced separately without replacing the entire cylindrical grinder spindle, which is convenient for replacement, reduces the maintenance cost, and consumes less energy. Less electricity, high precision.

It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and/or combinations thereof.

It should be noted that the terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that data so used may be interchanged under appropriate circumstances such that the embodiments of the application described herein can, for example, be practiced in sequences other than those illustrated or described herein.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (4)

1. A novel cylindrical grinding independent grinding spindle, characterized in that, comprising: a cylindrical grinding machine spindle body (1), a first rolling bearing (2), a second rolling bearing (3) and a spindle housing (4); Both ends of the central region of the cylindrical grinder main shaft body (1) are respectively provided with a first bearing installation part (11) and a second bearing installation part (12), the first bearing installation part (11) and the The diameter of the second bearing mounting portion (12) is smaller than the diameter of the central region of the cylindrical grinder main shaft body (1); the first bearing mounting portion (11) is sleeved with a first rolling bearing (2), the A second rolling bearing (3) is sleeved on the second bearing mounting portion (12); the cylindrical grinder main shaft body (1) is arranged inside the main shaft housing (4), the first rolling bearing (2) and the the second rolling bearing (3) is fixed in the main shaft housing (4); One end of the cylindrical grinder main shaft body (1) further comprises a grinding wheel flange mounting portion (13) connected with the first bearing mounting portion (11), and a grinding wheel flange mounting portion (13) connected with the grinding wheel flange mounting portion (13). A first locking nut fixing portion (14); the other end of the cylindrical grinder main shaft body (1) further comprises a pulley mounting portion (15) connected with the second bearing mounting portion (12), and a pulley mounting portion (15) connected with the second bearing mounting portion (12), a second locking nut fixing part (16) connected to the pulley installation part (15); The grinding wheel flange mounting portion (13) and the pulley mounting portion (15) protrude from both ends of the spindle housing (4), and the spindle housing (4) is close to the grinding wheel flange mounting portion ( 13) One end is provided with a dustproof and waterproof outer cover (5), and the dustproof and waterproof outer cover (5) is rotatable relative to the main shaft housing (4); A bed fixing portion (41) is connected to the outside of one end of the spindle housing (4) close to the grinding wheel flange mounting portion (13), and the bed fixing portion (41) is provided with locking screw holes ( 42); one end of the main shaft housing (4) close to the pulley mounting portion (15) is provided with an external thread (43), and the external thread (43) is used to connect the locking nut (6). 2. A novel cylindrical grinding independent grinding spindle according to claim 1, characterized in that the number of the first rolling bearing (2) and the second rolling bearing (3) is one or more respectively. 3. A novel cylindrical grinding independent grinding spindle according to claim 1, characterized in that the first rolling bearing (2) and the second rolling bearing (3) are angular contact bearings, roller bearings or One or a combination of two of the plane bearings. 4. A novel cylindrical grinding independent grinding spindle according to claim 1, characterized in that the diameters of the first bearing mounting portion (11) and the second bearing mounting portion (12) are equal or different equal, the dimensions of the first rolling bearing (2) and the second rolling bearing (3) are the same or different.

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