Positioning device for machine tool bearing polishing

Abstract

The utility model discloses a positioning device for machine tool bearing polishing, which comprises a placing frame and a driving piece, the driving piece comprises a mounting frame, an air cylinder is arranged at the position of the mounting frame corresponding to the middle of the placing frame, a connecting seat is arranged at the telescopic end of the air cylinder, and a fixing seat is rotatably arranged at the bottom of the connecting seat. Uniformly distributed connecting plates are rotationally arranged on the side surface of the fixed seat, a pressing block is rotationally arranged at one end, far away from the fixed seat, of each connecting plate, and a retainer for keeping the pressing blocks stable is arranged on the lower side of the fixed seat. According to the positioning device for machine tool bearing polishing, a bearing inner ring can be quickly positioned and locked, manual operation is not needed, manpower can be saved, the working efficiency is high, the situation that the bearing inner ring is too loose or too tight can be avoided, the bearing inner ring is prevented from being abraded, the bearing inner ring can be driven to synchronously rotate, the bearing inner ring can be conveniently and quickly polished, and the working efficiency is improved. The use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing processing, in particular to a positioning device for polishing machine tool bearings. Background Art

[0002] Roller bearings, a type of rolling bearing, are widely used in modern machinery. They rely on rolling contact between key components to support rotating parts. Roller bearings are now mostly standardized. They offer advantages such as low starting torque, high rotational accuracy, and ease of selection. When machining roller bearings for machine tools, the machining accuracy of the bearings affects the accuracy of the machine tool.

[0003] When machining roller bearings for machine tools, the inner raceway of the bearings needs to be polished to improve the accuracy of the inner raceway. Currently, a four-jaw chuck is typically used to position the inner race during polishing. This positioning method has the following disadvantages: 1. Manual adjustment of the jaws can easily cause the inner race to loosen (due to inadequate fixation) or wear (due to excessive force); 2. Manual fixation is slow and inefficient. Therefore, the present application provides a positioning device for polishing machine tool bearings to address the aforementioned issues. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a positioning device for polishing machine tool bearings, which can quickly position and lock the inner ring of the bearing without manual operation, save manpower, and have high work efficiency. It can also avoid the situation of being too loose or too tight, thereby avoiding wear on the inner ring of the bearing. It can also drive the inner ring of the bearing to rotate synchronously, which is convenient for rapid polishing of the inner ring of the bearing. It is easy to use and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning device for polishing machine tool bearings, comprising a placement frame and a driving member, the driving member comprising a mounting frame, a cylinder is provided at the position corresponding to the middle of the mounting frame and the placement frame, a connecting seat is provided at the telescopic end of the cylinder, a fixed seat is rotatably provided at the bottom of the connecting seat, a connecting plate is rotatably provided on the side of the fixing seat, a pressure block is rotatably provided at the end of the connecting plate away from the fixing seat, and a retaining frame for keeping the pressure block stable is provided on the lower side of the fixing seat.

[0006] As a preferred technical solution of the present invention, the placement rack includes a base, and a turntable is rotatably provided on the upper surface of the base.

[0007] As a preferred technical solution of the present invention, the retaining frame includes a central disk, and a telescopic rod is provided on the side of the central disk corresponding to the pressing block, and the telescopic end of the telescopic rod is connected to the pressing block.

[0008] As a preferred technical solution of the present invention, a screw hole is provided on the upper surface of the center disk, and a positioning bolt is connected to the internal thread of the screw hole.

[0009] As a preferred technical solution of the present invention, a friction pad is provided on the side of the pressing block away from the connecting plate.

[0010] As an optimal technical solution of the present invention, a driver for driving the fixed seat to rotate is provided on the side of the connecting seat, and the driver includes a motor installed on the side of the connecting seat through a motor seat. Pulleys are provided on the output shaft of the motor and the side of the fixed seat, and the two pulleys are connected by belt drive.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The positioning device for polishing machine tool bearings in the example of the present invention can quickly position and lock the inner ring of the bearing without manual operation, which can save manpower and improve work efficiency. It can also avoid being too loose or too tight, thereby avoiding wear on the inner ring of the bearing. It can also drive the inner ring of the bearing to rotate synchronously, which is convenient for rapid polishing of the inner ring of the bearing and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the local structure of the utility model.

[0015] In the figure: 1 base, 2 turntable, 3 mounting frame, 31 cylinder, 4 connecting seat, 5 fixing seat, 51 connecting plate, 52 pressure block, 6 center plate, 61 telescopic rod, 62 positioning bolt, 7 motor. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1-2The utility model provides a technical solution: a positioning device for polishing machine tool bearings, including a placement frame and a driving member, the driving member includes a mounting frame 3, a cylinder 31 is provided at the position corresponding to the middle of the mounting frame 3, a connecting seat 4 is provided at the telescopic end of the cylinder 31, a fixing seat 5 is rotatably provided at the bottom of the connecting seat 4, a connecting plate 51 is rotatably provided on the side of the fixing seat 5, a pressure block 52 is rotatably provided at one end of the connecting plate 51 away from the fixing seat 5, a retaining frame for maintaining the stability of the pressure block 52 is provided on the lower side of the fixing seat 5, the retaining frame includes a center disk 6, and the side surfaces corresponding to the center disk 6 and the pressure block 52 are provided. A telescopic rod 61 is provided on the surface, and the telescopic end of the telescopic rod 61 is connected to the pressure block 52. The inner ring of the bearing is placed on the turntable 2, and the cylinder 31 is controlled to extend. During the extension of the cylinder 31, the connecting plate 51 and the pressure block 52 are driven downward through the connecting seat 4 and the fixed seat 5 until the bottom of the positioning bolt 62 contacts the upper surface of the turntable 2; the cylinder 31 continues to extend, and then the connecting plate 51 is driven downward during the downward movement of the fixed seat 5, and the connecting plate 51 drives the telescopic rod 61 to extend through the pressure block 52 until the pressure block 52 squeezes the friction pad to the inner side of the bearing inner ring, thereby completing the centering and positioning operation of the bearing inner ring.

[0018] Furthermore, the placement rack includes a base 1, and a turntable 2 is rotatably provided on the upper surface of the base 1, so that the turntable 2 can rotate together with the bearing assembly, reducing the friction between the bearing assembly and the turntable 2.

[0019] Furthermore, a screw hole is opened on the upper surface of the center disk 6, and the internal thread of the screw hole is connected to a positioning bolt 62. In order to ensure that the pressure block 52 contacts the middle of the inner ring of the bearing, the positioning bolt 62 is rotated to adjust the distance between the bottom of the center disk 6 and the turntable 2, thereby adjusting the distance between the pressure block 52 and the turntable 2.

[0020] Furthermore, a friction pad is provided on a side of the pressing block 52 away from the connecting plate 51 to increase the friction between the pressing block 52 and the bearing.

[0021] Furthermore, a driver for driving the fixed seat 5 to rotate is provided on the side of the connecting seat 4. The driver includes a motor 7 installed on the side of the connecting seat 4 through a motor seat. Pulleys are provided on the output shaft of the motor 7 and the side of the fixed seat 5, and the two pulleys are connected by a belt drive to control the rotation of the motor 7. The fixed seat 5 rotates under the transmission action of the pulley and the belt, and the fixed seat 5 drives the inner ring of the bearing to rotate through the connecting plate 51 and the pressure block 52, and then the outer peripheral side of the inner ring of the bearing is polished by an external polishing device.

[0022] When using:

[0023] Place the inner ring of the bearing on the turntable 2 and control the extension of the cylinder 31. During the extension process, the cylinder 31 drives the connecting plate 51 and the pressing block 52 to move downward through the connecting seat 4 and the fixing seat 5 until the bottom of the positioning bolt 62 contacts the upper surface of the turntable 2.

[0024] The cylinder 31 continues to extend, and the fixing seat 5 moves downward, driving the connecting plate 51 downward. The connecting plate 51 drives the telescopic rod 61 to extend through the pressing block 52 until the pressing block 52 presses the friction pad to the inner side of the bearing inner ring, thereby completing the centering and positioning operation of the bearing inner ring.

[0025] The control motor 7 rotates, and the fixed seat 5 rotates under the transmission action of the pulley and the belt. The fixed seat 5 drives the inner ring of the bearing to rotate through the connecting plate 51 and the pressure block 52, and then the outer peripheral side of the inner ring of the bearing is polished by external polishing equipment.

[0026] The utility model can quickly position and lock the inner ring of the bearing without manual operation, which can save manpower and improve work efficiency. It can also avoid the situation of being too loose or too tight, thereby avoiding wear of the inner ring of the bearing. It can also drive the inner ring of the bearing to rotate synchronously, which is convenient for rapid polishing of the inner ring of the bearing and is easy to use.

[0027] The undisclosed parts of the present invention are all prior art, and their specific structures, materials and working principles will not be described in detail. Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning device for polishing machine tool bearings, comprising a placement frame and a driving member, characterized in that: The driving member includes a mounting frame (3), a cylinder (31) is provided at a position corresponding to the middle of the mounting frame (3), a connecting seat (4) is provided at the telescopic end of the cylinder (31), a fixing seat (5) is rotatably provided at the bottom of the connecting seat (4), a connecting plate (51) is rotatably provided on the side of the fixing seat (5), a pressure block (52) is rotatably provided at one end of the connecting plate (51) away from the fixing seat (5), and a retaining frame for maintaining the stability of the pressure block (52) is provided at the lower side of the fixing seat (5).

2. The positioning device for polishing machine tool bearings according to claim 1, characterized in that: The placement rack comprises a base (1), and a turntable (2) is rotatably provided on the upper surface of the base (1).

3. The positioning device for polishing machine tool bearings according to claim 1, characterized in that: The retaining frame comprises a central disk (6), and a telescopic rod (61) is provided on the side of the central disk (6) corresponding to the pressing block (52), and the telescopic end of the telescopic rod (61) is connected to the pressing block (52).

4. The positioning device for polishing machine tool bearings according to claim 3, characterized in that: A screw hole is provided on the upper surface of the center disk (6), and a positioning bolt (62) is connected to the inner thread of the screw hole.

5. The positioning device for polishing machine tool bearings according to claim 1, characterized in that: A friction pad is provided on the side of the pressing block (52) away from the connecting plate (51).

6. The positioning device for polishing machine tool bearings according to claim 1, characterized in that: A driver for driving the fixed seat (5) to rotate is provided on the side of the connecting seat (4), and the driver includes a motor (7) mounted on the side of the connecting seat (4) through a motor seat. Pulleys are provided on the output shaft of the motor (7) and the side of the fixed seat (5), and the two pulleys are connected by a belt drive.

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