Rotary table bearing grinding machining inner supporting device

Abstract

The utility model relates to the technical field of bearing machining equipment, in particular to a rotary table bearing grinding inner supporting device which comprises a back plate, a cylinder is arranged on the upper surface of the back plate, a shaft is rotatably connected to the inner side face of the cylinder, a rotating arm is installed at the end of the outer side face of the shaft, and the end of the rotating arm is connected with a bakelite block through a bakelite block fixing rod. A bracket for supporting the rotating arm is arranged on the outer side surface of the back plate; the bakelite block fixing rod is eccentrically installed on the bakelite block, and a notch is formed in the bakelite block. According to the inner supporting device for abrasive machining of the rotary table bearing, the problems existing in supporting outer circle machining can be solved, it is guaranteed that the position of the bearing is accurate in the machining process, machining errors caused by position deviation are reduced, and therefore the size precision and geometric precision of the bearing are improved; the bearing is stressed more uniformly during machining, deformation caused by overlarge local stress is avoided, and the shape precision such as roundness and cylindricity of the bearing can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing processing equipment technical field, concretely is a kind of inner support device for rotary table bearing grinding processing. BACKGROUND

[0002] Bearing part processing grinding machine tool fixture is a device used for clamping workpiece in grinding process. Its function is to position workpiece to make workpiece obtain correct position relative to machine tool and grinding wheel, and reliably clamp workpiece.

[0003] The fixture used in grinding process of rolling bearing ring in bearing industry has developed from centering type to centerless type. Electromagnetic centerless fixture is one of centerless fixtures with more advantages and more advanced technology, and has become a standard device for bearing grinding process. Its main configuration is that magnetic pole with magnetic force is used to fix workpiece end face, and upper and lower support positioning workpiece outer circle is used to realize workpiece positioning. Eccentricity, eccentric direction, support angle and support angle need to be adjusted when using.

[0004] The above-mentioned electromagnetic centerless fixture lacks inner circle support when processing thin-wall bearing workpiece and high-precision workpiece, and thin-wall bearing workpiece is easily offset by external force during processing, which causes processing error. At the same time, thin-wall bearing workpiece is deformed due to excessive local stress during processing, which affects the roundness of bearing workpiece. SUMMARY

[0005] The technical problem to be solved by the utility model is to overcome the defects of the prior art, provide an inner support device for rotary table bearing grinding processing, which can solve the problems existing in supporting outer circle processing, ensure the accurate position of bearing during processing, reduce processing error caused by position offset, improve the dimensional accuracy and geometric accuracy of bearing, make the stress of bearing more uniform during processing, avoid deformation caused by excessive local stress, help to ensure the shape accuracy such as roundness and cylindricity of bearing, reduce surface roughness and dimensional deviation caused by vibration, improve the stability and reliability of processing, and effectively solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an inner support device for rotary table bearing grinding processing, comprising a back plate, a column is arranged on the upper surface of the back plate, a shaft is rotatably connected to the inner side surface of the column, a rotating arm is installed on the outer side surface end of the shaft, a rubber block is connected to the end of the rotating arm through a rubber block fixing rod, and a bracket supporting the rotating arm is arranged on the outer side surface of the back plate.

[0007] The rubber block fixing rod is eccentrically installed on the rubber block, and a notch is arranged on the rubber block.

[0008] Preferably, the upper surface of the back plate is provided with a mounting hole, and a screw is arranged in the mounting hole.

[0009] Preferably, the rotating arm is fixed on the shaft by screws.

[0010] Preferably, the column is fixed on the back plate by an internal hexagonal screw.

[0011] Preferably, the back plate is connected with a horizontal plate by a T-shaped nut, the horizontal plate is provided with a strip-shaped slot, the T-shaped nut is arranged through the strip-shaped slot, the end of the horizontal plate is provided with a bakelite block fixing rod, and the end of the bakelite block fixing rod is connected with the bakelite block.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] 1. The inner support device for grinding processing of the rotating table bearing can solve the problems existing in supporting outer circle processing, ensure the position accuracy of the bearing in the processing process, reduce the processing error caused by position deviation, thereby improving the size precision and geometric precision of the bearing; the bearing is more uniformly stressed in processing, deformation caused by excessive local stress is avoided, the roundness, cylindricity and other shape precision of the bearing are helped to ensure; the surface roughness problem and size deviation caused by vibration are reduced, and the stability and reliability of processing are improved.

[0014] 2. The setting of the shaft facilitates the rotation adjustment of the bakelite block, the supporting rotating arm can well support the bracket after the bracket is rotated to the working state; the waterproof ring and the left cover plate are arranged to prevent water from entering the inside of the column; when the bakelite block is used, the sharp parts at both ends of the cutout press the inner ring of the sleeve ring, when the surface of the bakelite block is abraded after being used for a period of time, a new gap can be cut out along the original cutout direction by a cutting machine. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a front view of the utility model;

[0016] Fig. 2 It is a front view of the utility model.

[0017] In the drawing: 1 back plate, 2 column, 3 shaft, 4 bearing, 5 left cover plate, 6 middle sleeve, 7 gasket, 8 left sleeve, 9 right sleeve, 10 right cover plate, 11 rotating arm, 12 horizontal plate, 13 screw one, 14 waterproof ring, 15 screw two, 16 screw three, 17 screw four, 18 horizontal plate positioning plate, 19 screw five, 20 bakelite block fixing rod, 21 bakelite block, 22 nut one, 23 bracket, 24 internal hexagonal screw, 25 screw six, 26 T-shaped nut. DETAILED DESCRIPTION

[0018] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by the person skilled in the art without creative labor fall within the scope of the present application.

[0019] Please refer to Figs. 1-2 The utility model provides a technical scheme: a rotary table bearing grinding processing inner support device, including backplate 1, the upper surface of backplate 1 is equipped with cylinder 2, the inner side of cylinder 2 is rotatably connected with shaft 3, the outer side end of shaft 3 is installed with rotary arm 11, the end of rotary arm 11 is connected with bakelite block 21 through bakelite block fixed link 20, the outer side of backplate 1 is equipped with bracket 23 supporting rotary arm 11.

[0020] Specifically, the setting of shaft 3 facilitates the rotation adjustment of bakelite block 21, and after bracket 23 is rotated to the working state, the supporting rotary arm 11 can play a good supporting role on bracket 23.

[0021] More specifically, the inner side of cylinder 2 is sequentially sleeved with left sleeve 8, bearing 4, middle sleeve 6 and right sleeve 9 from left to right, the number of bearing 4 is two, the two bearings 4 are arranged on the left and right sides of middle sleeve 6, bearing 4 is installed on the outer side of shaft 3, one end of shaft 3 is installed with gasket 7, gasket 7 is fixed on the end of shaft 3 through screw six 25, gasket 7 is tightly pressed on the inner ring of bearing 4, one end of cylinder 2 is installed with left side cover plate 5 through screw one 13, the other end of cylinder 2 is installed with right side cover plate 10 through screw two 15, right side cover plate 10 is in contact with shaft 3 through waterproof ring 14.

[0022] By setting waterproof ring 14 and left side cover plate 5, water can be prevented from entering the inside of cylinder 2.

[0023] Bakelite block fixed link 20 is eccentrically installed on bakelite block 21, and a notch is formed in bakelite block 21.

[0024] Specifically, the installation position of bakelite block fixed link 20 on bakelite block 21 is away from the center position of bakelite block 21, bakelite block 21 is circular, and an angle is cut off during use, and the setting of bakelite block 21 can not only realize the positioning of the inner ring of the bearing, but also can avoid the inner ring of the bearing being scratched during the machining process.

[0025] More specifically, when bakelite block 21 is used, the sharp parts at both ends of the notch are pressed on the inner ring of the sleeve, and when bakelite block 21 is used for a period of time and the surface is worn, a new notch can be cut out along the original notch direction by using a cutting machine.

[0026] It is worth noting that after the new gap cutting is completed, the eccentricity, eccentric direction, support angle and support angle need to be adjusted, and after the first piece is debugged and processed qualified, the adjusting bolt can be fixed, and the workpiece can be quickly raised and lowered by turning the inner support rotating arm.

[0027] Further, the upper surface of the back plate 1 is provided with a mounting hole, and a screw three 16 is arranged in the mounting hole.

[0028] Specifically, the back plate 1 can be fixed on the machining seat of the lathe through the screw three 16.

[0029] Further, the rotating arm 11 is fixed on the shaft 3 through a screw four 17.

[0030] Specifically, rotating arms 11 of different lengths can be selected according to different machining ring sleeves.

[0031] Further, the column 2 is fixed on the back plate 1 through an internal hexagonal screw 24.

[0032] Specifically, the hexagonal screw 24 facilitates quick disassembly of the column 2.

[0033] Further, the back plate 1 is connected with a horizontal plate 12 through a T-shaped nut 26, the horizontal plate 12 is provided with a strip-shaped groove, the T-shaped nut 26 is arranged through the strip-shaped groove, the end of the horizontal plate 12 is provided with a bakelite block fixing rod 20, and the end of the bakelite block fixing rod 20 is connected with a bakelite block 21.

[0034] Specifically, the bottom of the bakelite block fixing rod 20 is connected with the bakelite block 21 through a bolt, the top of the bakelite block fixing rod 20 is fixed on the horizontal plate 12 through a nut one 22, and the length of the horizontal plate 12 can be adjusted according to needs, and after adjustment, the T-shaped nut 26 can be locked.

[0035] In use: loosen the T-shaped nut 26 and the nut one 22, adjust the position of the bakelite block 21, so that the two sharp ends of the bakelite block 21 can abut against the inner surface of the ring sleeve, then fix the T-shaped nut 26 and the nut one 22, and then perform trial machining, and after trial machining is qualified, the workpiece can be quickly raised and lowered by turning the rotating arm 11.

[0036] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An internal support device for turntable bearing grinding, comprising a back plate (1), characterized in that: The upper surface of the back plate (1) is provided with a column (2), the inner side surface of the column (2) is rotatably connected to a shaft (3), the outer side end of the shaft (3) is mounted with a rotating arm (11), the end of the rotating arm (11) is connected to a bakelite block (21) via a bakelite block fixing rod (20), and the outer side surface of the back plate (1) is provided with a bracket (23) for supporting the rotating arm (11); The bakelite block fixing rod (20) is eccentrically mounted on the bakelite block (21), and the bakelite block (21) is provided with a notch.

2. The inner support device for turntable bearing grinding according to claim 1, characterized in that: The upper surface of the back plate (1) is provided with a mounting hole, and a third screw (16) is provided in the mounting hole.

3. The inner support device for turntable bearing grinding according to claim 1, characterized in that: The rotating arm (11) is fixed to the shaft (3) by screw four (17).

4. The inner support device for turntable bearing grinding according to claim 1, characterized in that: The column (2) is fixed to the back plate (1) via hexagon socket screws (24).

5. The inner support device for turntable bearing grinding according to claim 1, characterized in that: The back plate (1) is connected to the transverse plate (12) via a T-shaped nut (26), the transverse plate (12) is provided with a strip groove, the T-shaped nut (26) is arranged through the strip groove, and a bakelite block fixing rod (20) is installed at the end of the transverse plate (12), and the end of the bakelite block fixing rod (20) is connected to the bakelite block (21).

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