Outer groove grinding machine for machining ball bearing

Abstract

The utility model relates to the technical field of grinding machines, and provides an outer groove grinding machine for machining ball bearings, which comprises a grinding table, a collecting opening is arranged on the grinding table, a driving rotating component is arranged on the upper end face of the grinding table, and a driving grinding component is arranged on the upper end face of the grinding table. The driving rotating assembly comprises a supporting table, a fixing sleeve is arranged on the upper end face of the supporting table, a driving shaft is inserted into the fixing sleeve, connecting shafts are arranged on the surfaces of the two opposite sides of the driving shaft, a clamping chuck is arranged at one end of each connecting shaft, and a driven gear is arranged at the tail end of each connecting shaft. A driving gear is arranged at the output end of the output motor and meshed with the driven gear. By means of the technical scheme, the problems that in the prior art, after a motor drives a chuck to rotate for a long time, rotation jumping is generated, the bearing is prone to being greatly pressed, and the service life of the bearing is sharply shortened are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding machines, in particular to a grinding machine for processing outer grooves of ball bearings. Background Art

[0002] The outer ring groove grinder is mainly used for grinding the inner surface of the bearing ring. It is a new generation of high-precision and high-efficiency production machine tools. The outer ring groove grinder is particularly suitable for small batch and large batch production.

[0003] The objects of grinding are mainly various cylinders, cones, shouldered stepped shafts, annular workpieces and rotating surfaces. High-precision universal cylindrical grinders are mainly used to process high-precision shafts, sleeves, foil rollers, ring gauges, plug gauges and other parts.

[0004] During the external groove grinding process, the motor usually drives the chuck to rotate for a long time, which will cause rotational jumps and easily exert great pressure on the bearings, which will sharply shorten the service life of the bearings. In view of this, an external groove grinder for processing ball bearings is developed. Utility Model Content

[0005] The utility model provides an outer groove grinder for processing ball bearings, which solves the problem in the related art that a motor drives a chuck to rotate for a long time, resulting in rotational jump, and easily exerting great pressure on the bearing, thus sharply shortening the service life of the bearing.

[0006] The technical solution of the utility model is as follows:

[0007] A grinding table, wherein a collecting port is provided on the grinding table;

[0008] A driving rotating assembly, wherein the driving rotating assembly is arranged on the upper end surface of the grinding table;

[0009] A driving and grinding assembly, wherein the driving and grinding assembly is arranged on the upper end surface of the grinding table;

[0010] The driving rotating assembly includes a supporting table, a fixing sleeve is provided on the upper end surface of the supporting table, a driving shaft is inserted in the fixing sleeve, connecting shafts are provided on the opposite side surfaces of the driving shaft, a clamping chuck is provided at one end of the connecting shaft, a driven gear is provided at the end of the connecting shaft, an output motor is provided on the upper end surface of the grinding table, a driving gear is provided at the output end of the output motor, and the driving gear is meshed with the driven gear.

[0011] As a further technical solution, a connecting frame is provided on the lower end surface of the grinding table, a collecting cover is provided on the connecting frame, a guide cover is provided at one end of the collecting cover, a hanging frame is provided on the opposite side surfaces of the guide cover, and the upper end of the hanging frame is connected to the lower end surface of the grinding table.

[0012] As a further technical solution, the drive grinding assembly includes a limit platform, a sliding groove is formed on the limit platform, a drive rod is embedded in the sliding groove, a grinding shaft is provided at one end of the drive rod, and a grinding wheel is provided on the grinding shaft.

[0013] As a further technical solution, an adjustment table is provided on the upper end surface of the grinding table, a driving cylinder is provided on the adjustment table, the output end of the driving cylinder is inserted into the sliding groove, and the telescopic end of the driving cylinder is fixedly connected to the driving rod.

[0014] As a further technical solution, the air guide cover is communicated with the collecting cover, the width of the air guide cover matches that of the collecting cover, and the collecting cover is an arc-shaped structure and bends downward.

[0015] As a further technical solution, a limiting opening is opened on the cross section of the connecting shaft, a pin shaft is connected to a limiting wheel in the limiting opening, a pin shaft is connected to a self-rotating wheel on the side surface of the driving shaft, there are several self-rotating wheels, and multiple self-rotating wheels are evenly distributed on the driving shaft.

[0016] As a further technical solution, the clamping chuck is a three-jaw chuck, and the grinding wheel is located on one side surface of the clamping chuck.

[0017] As a further technical solution, the grinding table is a rectangular structure, and supporting feet are provided at the four corners of the lower end surface of the grinding table.

[0018] As a further technical solution, two opposite ends of the side surface of the driving shaft are provided with rotation bearings, and the rotation bearings are arranged between the driving shaft and the fixing sleeve.

[0019] As a further technical solution, the output motor and the grinding table are fixedly screwed together by locking bolts.

[0020] The working principle and beneficial effects of the utility model are:

[0021] The utility model drives the output motor in the rotating assembly to drive the driving gear to rotate, and after the driving gear is meshed with the driven gear, drives the driving shaft and the connecting shaft to rotate in the fixed sleeve, and drives the clamping chuck to rotate, and the limiting wheel in the limiting opening allows the connecting shaft and the driving shaft to slide smoothly in the fixed sleeve, the self-rotating wheel assists the connecting shaft and the driving shaft to rotate smoothly, and the self-rotating bearing is used for the connecting shaft and the driving shaft to slide smoothly in the fixed sleeve, which enhances the self-rotation stability of the connecting shaft and the driving shaft and prevents the connecting shaft and the driving shaft from rotating and jumping during the rotation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is a side view of the drive shaft of the utility model;

[0025] Figure 3 This is an axial view of the collection cover of the utility model;

[0026] In the figure: 1. Grinding table; 2. Collecting port; 3. Driving rotating assembly; 3-1. Support table; 3-2. Fixed sleeve; 3-3. Driving shaft; 3-4. Connecting shaft; 3-5. Clamping chuck; 3-6. Driven gear; 3-7. Output motor; 3-8. Driving gear; 3-9. Connecting frame; 3-10. Collecting cover; 3-11. Guide cover; 3-12. Lifting frame; 4. Driving grinding assembly; 4-1. Limiting table; 4-2. Sliding groove; 4-3. Driving rod; 4-4. Grinding shaft; 4-5. Grinding wheel; 4-6. Adjusting table; 4-7. Driving cylinder; 5. Limiting port; 6. Limiting wheel; 7. Rotating wheel; 8. Support foot; 9. Rotating bearing. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1~Figure 3 As shown, this embodiment provides a grinding machine for machining the outer groove of a ball bearing, comprising

[0029] A grinding table 1, wherein a collecting port 2 is provided on the grinding table 1;

[0030] A driving rotating assembly 3, wherein the driving rotating assembly 3 is arranged on the upper end surface of the grinding table 1;

[0031] A driving grinding assembly 4, wherein the driving grinding assembly 4 is arranged on the upper end surface of the grinding table 1;

[0032] The driving rotating assembly 3 includes a supporting table 3-1, a fixing sleeve 3-2 is provided on the upper end surface of the supporting table 3-1, a driving shaft 3-3 is inserted in the fixing sleeve 3-2, connecting shafts 3-4 are provided on the opposite side surfaces of the driving shaft 3-3, a clamping chuck 3-5 is provided at one end of the connecting shaft 3-4, a driven gear 3-6 is provided at the end of the connecting shaft 3-4, an output motor 3-7 is provided on the upper end surface of the grinding table 1, a driving gear 3-8 is provided at the output end of the output motor 3-7, and the driving gear 3-8 is meshed with the driven gear 3-6.

[0033] In this embodiment, the clamping bearing is clamped on the clamping chuck 3-5, and the output motor 3-7 drives the driving gear 3-8 to rotate. After the driving gear 3-8 engages with the driven gear 3-6, it drives the driving shaft 3-3 and the connecting shaft 3-4 to rotate in the fixed sleeve 3-2, and drives the clamping chuck 3-5 to rotate.

[0034] Specifically, a connecting frame 3-9 is provided on the lower end surface of the grinding table 1, a collecting cover 3-10 is provided on the connecting frame 3-9, a guide cover 3-11 is provided at one end of the collecting cover 3-10, and a hanging frame 3-12 is provided on the opposite side surfaces of the guide cover 3-11, and the upper end of the hanging frame 3-12 is connected to the lower end surface of the grinding table 1.

[0035] In this embodiment, during the grinding process, the grinding residues fall from the collecting port 2, are cleaned by the collecting cover 3-10 on the connecting frame 3-9, and are collected centrally by the guide cover 3-11 during the cleaning process.

[0036] Furthermore, the driving grinding component 4 includes a limit table 4-1, a sliding groove 4-2 is opened on the limit table 4-1, a driving rod 4-3 is embedded in the sliding groove 4-2, a grinding shaft 4-4 is arranged at one end of the driving rod 4-3, and a grinding wheel 4-5 is arranged on the grinding shaft 4-4.

[0037] In this embodiment, the driving rod 4-3 slides horizontally in the sliding groove 4-2, which can make the grinding shaft 4-4 on the driving rod 4-3 swing, so that the bearing on the clamping chuck 3-5 is ground by the grinding wheel 4-5.

[0038] Furthermore, an adjustment table 4-6 is provided on the upper end surface of the grinding table 1, and a driving cylinder 4-7 is provided on the adjustment table 4-6. The output end of the driving cylinder 4-7 is inserted into the sliding groove 4-2, and the telescopic end of the driving cylinder 4-7 is fixedly connected to the driving rod 4-3.

[0039] In this embodiment, the driving cylinder 4-7 on the adjustment platform 4-6 is used to drive the driving rod 4-3 to slide horizontally in the sliding groove 4-2.

[0040] Furthermore, the air guide hood 3-11 is connected to the collecting hood 3-10, and the width of the air guide hood 3-11 matches that of the collecting hood 3-10. The collecting hood 3-10 is an arc-shaped structure and bends downward. A limiting opening 5 is opened on the cross section of the connecting shaft 3-4, and a limiting wheel 6 is connected to the pin shaft in the limiting opening 5. A self-rotating wheel 7 is connected to the pin shaft on the side surface of the driving shaft 3-3. There are several self-rotating wheels 7, and multiple self-rotating wheels 7 are evenly distributed on the driving shaft 3-3. The clamping chuck 3-5 is a three-claw chuck, and the grinding wheel 4-5 is located on one side surface of the clamping chuck 3-5.

[0041] In this embodiment, the limiting wheel 6 in the limiting opening 5 allows the connecting shaft 3-4 and the driving shaft 3-3 to slide smoothly in the fixing sleeve 3-2, and the rotating wheel 7 assists the connecting shaft 3-4 and the driving shaft 3-3 to rotate smoothly.

[0042] Furthermore, the grinding table 1 is a rectangular structure, and supporting feet 8 are arranged at the four corners of the lower end surface of the grinding table 1. Rotation bearings 9 are arranged at the opposite ends of the side surface of the driving shaft 3-3. The rotation bearings 9 are arranged between the driving shaft 3-3 and the fixed sleeve 3-2, and the output motor 3-7 and the grinding table 1 are fixedly screwed together by locking bolts.

[0043] In this embodiment, the support legs 8 are used to support the grinding table 1, and the rotation bearing 9 is used to ensure that the connecting shaft 3-4 and the driving shaft 3-3 slide smoothly in the fixed sleeve 3-2.

[0044] When grinding is required, the bearing is placed in the clamping chuck 3-5, and the output motor 3-7 drives the driving gear 3-8 to rotate. After the driving gear 3-8 is meshed with the driven gear 3-6, the driving shaft 3-3 and the connecting shaft 3-4 are driven to rotate in the fixed sleeve 3-2, and the clamping chuck 3-5 is driven to rotate. The driving cylinder 4-7 on the adjustment table 4-6 is used to drive the driving rod 4-3 to slide horizontally in the sliding groove 4-2. The driving rod 4-3 slides horizontally in the sliding groove 4-2, which can make the grinding shaft 4-4 on the driving rod 4-3 swing, so that the bearing on the clamping chuck 3-5 is grinded by the grinding wheel 4-5. During the grinding process, the grinding residue falls from the collecting port 2 and is cleaned by the collecting cover 3-10 on the connecting frame 3-9, and is collected centrally by the guide cover 3-11 during the cleaning process.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A grinding machine for processing the outer groove of a ball bearing, characterized in that: include A grinding table (1), wherein a collecting port (2) is formed on the grinding table (1); A driving rotating assembly (3), wherein the driving rotating assembly (3) is arranged on the upper end surface of the grinding table (1); A driving grinding component (4), wherein the driving grinding component (4) is arranged on the upper end surface of the grinding table (1); The driving rotating assembly (3) comprises a supporting platform (3-1), the upper end surface of the supporting platform (3-1) is provided with a fixing sleeve (3-2), a driving shaft (3-3) is inserted in the fixing sleeve (3-2), connecting shafts (3-4) are provided on opposite side surfaces of the driving shaft (3-3), a clamping chuck (3-5) is provided at one end of the connecting shaft (3-4), a driven gear (3-6) is provided at the end of the connecting shaft (3-4), an output motor (3-7) is provided on the upper end surface of the grinding table (1), a driving gear (3-8) is provided at the output end of the output motor (3-7), and the driving gear (3-8) is meshed with the driven gear (3-6).

2. The outer groove grinding machine for machining ball bearings according to claim 1, characterized in that: The lower end surface of the grinding table (1) is provided with a connecting frame (3-9), a collecting cover (3-10) is provided on the connecting frame (3-9), a guide cover (3-11) is provided at one end of the collecting cover (3-10), and hanging frames (3-12) are provided on the opposite two side surfaces of the guide cover (3-11), and the upper end of the hanging frame (3-12) is connected to the lower end surface of the grinding table (1).

3. The outer groove grinding machine for machining ball bearings according to claim 1, characterized in that: The driving grinding assembly (4) comprises a limiting platform (4-1), a sliding groove (4-2) is formed on the limiting platform (4-1), a driving rod (4-3) is embedded in the sliding groove (4-2), a grinding shaft (4-4) is arranged at one end of the driving rod (4-3), and a grinding wheel (4-5) is arranged on the grinding shaft (4-4).

4. The outer groove grinding machine for machining ball bearings according to claim 3, characterized in that: The upper end surface of the grinding table (1) is provided with an adjustment table (4-6), and the adjustment table (4-6) is provided with a driving cylinder (4-7). The output end of the driving cylinder (4-7) is inserted into the sliding groove (4-2), and the telescopic end of the driving cylinder (4-7) is fixedly connected to the driving rod (4-3).

5. The outer groove grinding machine for machining ball bearings according to claim 2, characterized in that: The air guide cover (3-11) is connected to the collecting cover (3-10), the width of the air guide cover (3-11) matches that of the collecting cover (3-10), and the collecting cover (3-10) is an arc-shaped structure and is bent downward.

6. The outer groove grinding machine for machining ball bearings according to claim 1, characterized in that: A limit opening (5) is formed on the cross section of the connecting shaft (3-4), a limit wheel (6) is connected to the pin in the limit opening (5), a self-rotating wheel (7) is connected to the pin on the side surface of the driving shaft (3-3), and the self-rotating wheels (7) are provided in a plurality and are evenly distributed on the driving shaft (3-3).

7. The outer groove grinding machine for machining ball bearings according to claim 3, characterized in that: The clamping chuck (3-5) is a three-jaw chuck, and the grinding wheel (4-5) is located on one side surface of the clamping chuck (3-5).

8. The outer groove grinding machine for machining ball bearings according to claim 1, characterized in that: The grinding table (1) is a rectangular structure, and supporting feet (8) are arranged at the four corners of the lower end surface of the grinding table (1).

9. The outer groove grinding machine for machining ball bearings according to claim 1, characterized in that: Rotation bearings (9) are provided at opposite ends of the side surface of the drive shaft (3-3), and the rotation bearings (9) are arranged between the drive shaft (3-3) and the fixed sleeve (3-2).

10. The outer groove grinding machine for machining ball bearings according to claim 1, characterized in that: The output motor (3-7) is screwed and fixedly connected to the grinding table (1) via locking bolts.

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