Grinding tool for step surface of outer ring of deep groove ball bearing with mounting edge

Abstract

The utility model provides a grinding tool for a step surface of an outer ring of a deep groove ball bearing with a mounting edge. The grinding tool comprises a magnetic attraction seat and a pressing block, the magnetic attraction seat is arranged on a lathe rotating shaft; an adjusting hole is formed in the middle of the pressing block and is in a long strip shape, a fixing block is arranged on the lathe in the direction of the front end of a lathe rotating shaft, and a bolt penetrates through the adjusting hole to fix the pressing block to the fixing block. The number of the pressing blocks is two, and the two pressing blocks are located on the axis radial line of the lathe rotating shaft. According to the grinding tool for the deep groove ball bearing outer ring step face with the installation edge, the bearing outer ring with the installation edge can be ground through an existing machining lathe, the good fixing effect is achieved, the bearing outer ring is prevented from moving in the machining process, the fixing step is convenient and rapid, and the machining efficiency is improved. And the method is suitable for the machining process of the bearing outer ring with the mounting edge under most conditions.

Description

Technical Field

[0001] This utility model belongs to the field of machine tool processing fixtures, specifically relating to a grinding fixture for mounting the stepped surface of the outer ring of a deep groove ball bearing. Background Technology

[0002] Bearings are essential components in modern machinery, supporting rotating parts and reducing friction during rotation. Depending on the application and equipment requirements, bearings have different structures. Typical bearings only have an inner and outer ring structure, but in some applications, bearings with mounting edges are required. Due to the added mounting edge, bearings with mounting edges cannot be machined using standard bearing tools and require specialized bearing ring grinders. However, these machines are expensive, significantly increasing production costs. Existing lathes cannot be scrapped. Therefore, it is necessary to research and develop a grinding fixture that allows for the grinding of bearings with mounting edges on existing lathes. Utility Model Content

[0003] To address the above problems, this utility model provides a grinding fixture for mounting the stepped surface of the outer ring of a deep groove ball bearing. The bearing outer ring can be mounted and fixed for processing using a magnetic mounting base, providing a good fixing effect.

[0004] A grinding fixture for the stepped surface of the outer ring of a deep groove ball bearing with an mounting edge includes a magnetic base and pressure blocks. The magnetic base is mounted on the lathe spindle, and its magnetic force can magnetically attract and fix the outer ring of the bearing, thereby fixing the outer ring of the bearing on the lathe spindle for machining. An adjustment hole with an elongated shape is provided in the middle of the pressure block. A fixing block is installed on the lathe at the front end of the lathe spindle. A bolt is installed in the adjustment hole, and the pressure block is fixed to the fixing block by passing the bolt through the adjustment hole. The shape of the adjustment hole allows the pressure block to be positioned using the bolt as a positioning point. Two pressure blocks are installed in the fixing hole, with their positions aligned radially from the axis of the lathe spindle. By adjusting the position of the pressure blocks, the mounting edge on the outer ring of the bearing is pressed tightly.

[0005] To ensure that the magnetic holder can be stably fixed on the lathe spindle, the magnetic holder is made into a cylindrical shape, and a flange is set at one end of the magnetic holder. Multiple fixing holes are opened on the flange, and bolts are installed in the fixing holes. The magnetic holder is firmly fixed to the lathe spindle by passing the bolts through the fixing holes, so that the magnetic holder and the lathe spindle are coaxially set.

[0006] To enhance the fixing effect of the pressure block on the outer ring of the bearing, a rubber pad is placed at the end of the pressure block facing the lathe shaft. This increases the friction between the pressure block and the outer ring of the bearing and reduces the wear of the pressure block.

[0007] To provide better clamping effect during processing, the angle between the two clamping blocks and the grinding wheel on the lathe is set to 120°. The three are evenly distributed along the circumference, and force is applied to the outer ring of the bearing from three points to prevent the outer ring of the bearing from moving.

[0008] To ensure the adjustment angle of the pressure block, allowing it to move only in a radial direction centered on the pivot axis, two bolts are used in the adjustment hole of the pressure block to restrict its movement direction.

[0009] The grinding fixture for the stepped surface of the outer ring of a deep groove ball bearing with mounting edge provided by this utility model can grind the outer ring of the bearing with mounting edge using an existing machining lathe. It has a good fixing effect, avoids the movement of the outer ring of the bearing during the machining process, and the fixing steps are convenient and quick. It is suitable for most cases of machining processes of the outer ring of bearing with mounting edge. Attached Figure Description

[0010] The present invention will now be described in further detail with reference to the accompanying drawings.

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the bearing outer ring in the installation state of this utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the present invention in use;

[0014] The figure shows: 1-magnetic base; 2-pressure block; 3-lathe spindle; 4-adjustment hole; 5-fixing block; 6-flange; 7-fixing hole; 8-rubber pad; 9-grinding wheel. Detailed Implementation

[0015] To further illustrate the concept of this utility model, the specific embodiments of this utility model will be further described below with reference to the accompanying drawings:

[0016] A grinding fixture with a stepped outer ring surface for mounting a deep groove ball bearing, such as Figure 1 As shown, it includes a magnetic base 1 and a pressure block 2. The magnetic base 1 is made of neodymium magnet. The main body of the magnetic base 1 is cylindrical. A flange 6 is provided at the end of the magnetic base 1. Four fixing holes 7 are evenly opened on the flange 6. The magnetic base 1 is connected and fixed to the lathe spindle 3 by bolts passing through the fixing holes 7. During connection, it is ensured that the magnetic base 1 and the lathe spindle 3 are coaxial.

[0017] Take a long strip of metal as pressure block 2, and make a long strip of adjustment hole 4 in the middle of pressure block 2. Attach a rubber pad 8 to one end of pressure block 2. Make two pressure blocks 2 in the above manner. Install a metal plate as a fixing block 5 on the upper part of the lathe. The fixing block 5 is positioned at the predetermined machining position of the bearing outer ring, and the fixing block 5 provides machining space. Using the position of the grinding wheel 9 during machining as a reference, and the line connecting the center of the grinding wheel 9 to the point where the outer ring of the grinding wheel 9 contacts the outer ring of the bearing as a reference line, install the two pressure blocks 2 on the fixing block 5. The installation method is to connect the pressure blocks 2 to the fixing block 5 by passing two bolts through the adjustment hole 4. The angle between the position of the two pressure blocks 2 and the reference line is 120° with the axis of the lathe spindle 3 as the central axis. Figure 2 As shown, the two pressure blocks 2 and the grinding wheel 9 can apply force evenly to the outer ring of the bearing. When installing the pressure block 2, the end with the rubber pad 8 should face the lathe shaft 3.

[0018] When machining the bearing outer ring, first attach the bearing outer ring to the magnetic holder 1, ensuring the mounting edge of the bearing outer ring contacts the magnetic holder 1. Under the strong magnetic force of the magnetic holder 1, the bearing outer ring is fixed to the lathe spindle 3. When the lathe spindle 3 rotates, it drives the bearing outer ring to rotate. Then, loosen the bolts on the pressure block 2 and adjust its position so that one end of the rubber pad 8 of the pressure block 2 is on the outer diameter of the bearing outer ring. After adjustment, tighten the bolts to secure it. At this point, one end of the rubber pad 8 of the pressure block 2 contacts the outer wall of the bearing outer ring and presses against the mounting edge of the bearing outer ring, completing the fixation of the bearing outer ring. After fixation, the grinding wheel 9 can be started to perform cutting operations on the bearing outer ring, such as... Figure 3 As shown, the rotation of the lathe spindle 3 can drive the outer ring of the bearing to rotate, thereby adjusting the cutting position. The improvement in this invention is only in the grinding fixture part; therefore, the overall structure of the machining lathe is not shown in the drawings, and the machining lathe part has been simplified. However, as a basic machining equipment in this field, the specific structure of the machining lathe is known to those skilled in the art.

[0019] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Various modifications and variations can be made by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. made using the present utility model should be included within the protection scope of the present utility model.

Claims

1. A grinding fixture with a stepped outer ring surface for a deep groove ball bearing with an mounting edge, characterized in that: It includes a magnetic base (1) and a pressure block (2); the magnetic base (1) is set on the lathe spindle (3); the pressure block (2) has an adjustment hole (4) in the middle, the adjustment hole (4) is long and narrow, and a fixing block (5) is provided on the lathe in the direction of the front end of the lathe spindle (3). A bolt is provided in the adjustment hole (4), and the bolt passes through the adjustment hole (4) to fix the pressure block (2) on the fixing block (5); there are two pressure blocks (2), and the two pressure blocks (2) are located on the radial line of the axis of the lathe spindle (3).

2. The grinding fixture for the stepped surface of the outer ring of a deep groove ball bearing with mounting edge as described in claim 1, characterized in that: The magnetic base (1) is cylindrical. The end of the magnetic base (1) is provided with a flange (6). Multiple fixing holes (7) are opened on the flange (6). Bolts are provided in the fixing holes (7). The bolts pass through the fixing holes (7) to fix the magnetic base (1) on the lathe shaft (3). The magnetic base (1) and the lathe shaft (3) are coaxially arranged.

3. The grinding fixture with the stepped surface of the outer ring of a deep groove ball bearing with mounting edge as described in claim 2, characterized in that: The end of the pressure block (2) facing the lathe shaft (3) is provided with a rubber pad (8).

4. The grinding fixture with the stepped surface of the outer ring of a deep groove ball bearing with mounting edge as described in claim 3, characterized in that: The angle between the two pressure blocks (2) and the grinding wheel (9) on the lathe is 120°.

5. The grinding fixture for the stepped surface of the outer ring of a deep groove ball bearing with mounting edge as described in claim 4, characterized in that: The adjustment hole (4) of the pressure block (2) has two bolts.

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