Bearing outer ring inner channel refiner with improved structure

Abstract

The utility model provides a bearing outer ring inner channel refiner with an improved structure, which comprises a lathe bed, a grinding guide rail and a workpiece guide rail which are arranged on the lathe bed, a grinding carriage and a grinding wheel component are arranged on the grinding guide rail, a grinding moving mechanism is arranged beside the grinding guide rail, and a workpiece carriage, a clamping component and a correcting component are arranged on the workpiece guide rail. A workpiece moving mechanism is arranged beside the workpiece guide rail; the grinding moving mechanism and the workpiece moving mechanism each comprise a fixing box, a coupler, a lead screw, a nut base, a precise speed reducer and a servo motor. The grinding planker and the workpiece planker are both driven by the servo motor through the precise speed reducer and the coupler to be matched with the nut base to achieve movement, the output torque is large, transmission is stable, machining precision is high, and machining quality is guaranteed. The output end of the precise speed reducer is detachably connected with the coupler, and maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of production equipment improvement, in particular to a structurally improved bearing outer ring inner groove fine grinding machine. Background Art

[0002] The grinding quality of the inner raceway of a bearing outer ring is one of the primary indicators for evaluating bearing product quality. In existing grinding techniques, the movement of the grinding assembly and workpiece clamping assembly is achieved through a motor directly driving a lead screw that cooperates with a nut holder. Because the motor directly drives the lead screw, the transmission is not very smooth, resulting in reduced machining accuracy and affecting machining quality. Summary of the Invention

[0003] The purpose of the utility model is to provide a bearing outer ring inner groove fine grinding machine with an improved structure, which can solve the technical problems mentioned in the background technology.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a structurally improved bearing outer ring inner groove fine grinding machine, comprising a bed, wherein the bed is provided with a grinding guide rail and a workpiece guide rail perpendicular to each other, a grinding slide is slidably provided on the grinding guide rail, and a grinding wheel assembly for grinding the workpiece is provided on the grinding slide, a grinding moving mechanism for driving the grinding slide to slide back and forth along the grinding guide rail is provided next to the grinding guide rail, a workpiece slide is slidably provided on the workpiece guide rail, and a clamping assembly for clamping the workpiece and a correction assembly for correcting the grinding wheel of the grinding wheel assembly are provided on the workpiece slide, and a workpiece moving mechanism for driving the workpiece slide to slide back and forth along the workpiece guide rail is provided next to the workpiece guide rail;

[0005] The grinding moving mechanism and the workpiece moving mechanism both include a fixed box fixed on the bed, a coupling is provided in the fixed box, one end of the coupling is connected to one end of a screw, the other end of the screw passes through one side of the fixed box and is provided with a nut seat, the nut seat is connected to the grinding slide or the workpiece support plate, a precision reducer is detachably mounted on the outside of the other side of the fixed box, the output end of the precision reducer passes through the fixed box and is detachably connected to the other end of the coupling, a servo motor is fixed on the precision reducer, and the output end of the servo motor is connected to the input end of the precision reducer.

[0006] Preferably, an opening is provided on the upper side of the fixed box, and circular holes are provided on the front and rear sides of the fixed box. The screw rod is passed through one of the circular holes through a bearing assembly, and the other circular hole is for the output end of the precision reducer to pass through. The precision reducer is provided with a flange, which is fixed to the fixed box outside the outer periphery of the circular hole by screws. Connecting seats are provided on the left and right sides of the fixed box, and the connecting seats are fixed to the bed by screws.

[0007] Preferably, the coupling includes two coupling bodies with the same structure, and a toothed part located between the two coupling bodies, the coupling body is penetrated by a coupling hole for the output end or screw of the precision reducer to extend into, the head of the coupling body is provided with a radial gap and an axial gap, one end of the radial gap is connected with the inner end of the axial gap, and the two side walls of the axial gap are locked by connecting screws, the coupling body is radially provided with an adjustment screw hole connected with the coupling hole, and the adjustment screw hole is provided with an adjustment screw, the edge of the tail of the coupling body is evenly distributed with a plurality of protrusions, the toothed part has a plurality of tooth grooves, and the protrusions are correspondingly inserted into the tooth grooves.

[0008] Compared with the existing technology, the beneficial effects of the present invention are: the grinding slide and the workpiece slide of the present invention both use servo motors to drive the lead screw and the nut seat through a precision reducer and a coupling to achieve movement, with large output torque, smooth transmission, high processing accuracy, and guaranteed processing quality. Moreover, the servo motor is detachably mounted on the fixed box through the precision reducer, and the output end of the precision reducer is detachably connected to the coupling, which is easy to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a three-dimensional diagram of the present utility model.

[0010] Figure 2 It is a top view of the present utility model.

[0011] Figure 3 It is an exploded view of the grinding slide of the present utility model.

[0012] Figure 4 It is a three-dimensional diagram of the coupling body of the present utility model. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0014] like Figure 1-Figure 4As shown, the utility model provides a structurally improved bearing outer ring inner groove fine grinding machine, comprising a bed 1, on which a grinding guide rail 2 and a workpiece guide rail 3 perpendicular to each other are provided, a grinding carriage 4 is slidably provided on the grinding guide rail 2, a grinding wheel assembly 5 for grinding the workpiece is provided on the grinding carriage 4, a grinding moving mechanism for driving the grinding carriage 4 to slide back and forth along the grinding guide rail is provided next to the grinding guide rail 2, a workpiece carriage 6 is slidably provided on the workpiece guide rail 3, a clamping assembly 7 for clamping the workpiece and a correction assembly 8 for correcting the grinding wheel of the grinding wheel assembly 5 are provided on the workpiece guide rail 3, and a workpiece moving mechanism for driving the workpiece carriage 6 to slide back and forth along the workpiece guide rail 3 is provided next to the workpiece guide rail 3;

[0015] The grinding moving mechanism and the workpiece moving mechanism both include a fixed box 9 fixed on the bed 1, a coupling 10 is provided in the fixed box 9, one end of the coupling 10 is connected to one end of a screw 11, the other end of the screw 11 passes through one side of the fixed box 9 and is provided with a nut seat 12, the nut seat 12 is connected to the grinding slide 4 or the workpiece support plate 6, and a precision reducer 13 is detachably installed on the outside of the other side of the fixed box 9, the output end of the precision reducer 13 passes through the fixed box 9 and is detachably connected to the other end of the coupling 10, a servo motor 14 is fixed on the precision reducer 13, and the output end of the servo motor 14 is connected to the input end of the precision reducer 13.

[0016] When the present invention is in use, the servo motor 14 drives the corresponding screw 11 to rotate via the precision reducer 13. The screw 11 cooperates with the nut seat 12 to drive the corresponding grinding carriage 4 or workpiece carriage 6 to move, thereby processing the workpiece through the grinding wheel assembly 5. Because the servo motor 14 drives the screw 11 to operate via the precision reducer 13, the output torque is large, the transmission is smooth, the processing accuracy is high, and the processing quality is guaranteed. At the same time, because the servo motor 14 is detachably mounted on the fixed box 9 via the precision reducer 13, the output end of the precision reducer 13 is detachably connected to the coupling 10, the servo motor 14 and the precision reducer 13 are located outside the bed 1 and adopt a detachable structure, which is convenient for maintenance.

[0017] Preferably, the upper side of the fixed box 9 is provided with an opening, and circular holes 15 are provided on the front and rear sides of the fixed box 9. The screw rod 11 is inserted into one of the circular holes 15 through a bearing assembly 16, and the output end of the precision reducer 13 passes through the other circular hole 15. The precision reducer 13 is provided with a flange 17, which is fixed to the fixed box 9 outside the periphery of the circular hole 15 by screws. The left and right sides of the fixed box 9 are provided with connecting seats 18, which are fixed to the bed 1 by screws. The upper side of the fixed box 9 is open to facilitate observation and operation of the connection between the precision reducer 13 and the coupling 10. The precision reducer 13 is detachably mounted on the fixed box 9 via the flange 17, and the fixed box 9 is detachably mounted on the bed 1 via the connecting seat 18.

[0018] Preferably, the coupling 10 includes two coupling bodies 101 with the same structure, and a toothed part 102 located between the two coupling bodies 101, the coupling body 101 is penetrated by a coupling hole 103 for the output end of the precision reducer 13 or the screw 11 to extend into, the head of the coupling body 101 is provided with a radial gap 104 and an axial gap 105, one end of the radial gap 104 is connected to the inner end of the axial gap 105, and the two side walls of the axial gap 105 are locked by connecting screws, the coupling body 101 is radially provided with an adjustment screw hole 106 connected to the coupling hole 103, and the adjusting screw hole 106 is provided with an adjusting screw, the edge of the tail of the coupling body 101 is evenly distributed with a plurality of protrusions 107, and the toothed part 102 has a plurality of tooth grooves 108, and the protrusions 107 are correspondingly inserted into the tooth grooves 108. The protrusions 107 of the two coupling bodies 101 are staggered and inserted into the tooth grooves 108 of the corresponding toothed parts 102. The two coupling bodies 101 are assembled into a whole through the toothed parts 102. The output end of the precision reducer 13 extends into the coupling hole 103 of one coupling body 101, and one end of the screw rod 11 extends into the coupling hole 103 of the other coupling body 101. Tighten the connecting screw and the adjusting screw to connect the precision reducer 13 and the screw rod 11 through the coupling 10.

[0019] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and the embodiments. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A structurally improved bearing outer ring inner groove fine grinding machine, comprising a bed, characterized in that: The bed is provided with a grinding guide rail and a workpiece guide rail perpendicular to each other, a grinding slide is slidably provided on the grinding guide rail, and a grinding wheel assembly for grinding the workpiece is provided on the grinding slide. A grinding moving mechanism for driving the grinding slide to slide back and forth along the grinding guide rail is provided next to the grinding guide rail, a workpiece slide is slidably provided on the workpiece guide rail, and a clamping assembly for clamping the workpiece and a correction assembly for correcting the grinding wheel of the grinding wheel assembly are provided on the workpiece slide. A workpiece moving mechanism for driving the workpiece slide to slide back and forth along the workpiece guide rail is provided next to the workpiece guide rail; The grinding moving mechanism and the workpiece moving mechanism both include a fixed box fixed on the bed, a coupling is provided in the fixed box, one end of the coupling is connected to one end of a screw, the other end of the screw passes through one side of the fixed box and is provided with a nut seat, the nut seat is connected to the grinding slide or the workpiece support plate, a precision reducer is detachably mounted on the outside of the other side of the fixed box, the output end of the precision reducer passes through the fixed box and is detachably connected to the other end of the coupling, a servo motor is fixed on the precision reducer, and the output end of the servo motor is connected to the input end of the precision reducer.

2. The structurally improved bearing outer ring inner groove fine grinding machine according to claim 1, characterized in that: An opening is provided on the upper side of the fixed box, and circular holes are provided on the front and rear sides of the fixed box. The screw rod is passed through one of the circular holes through a bearing assembly, and the other circular hole is for the output end of the precision reducer to pass through. The precision reducer is provided with a flange, which is fixed to the fixed box outside the outer periphery of the circular hole by screws. Connecting seats are provided on the left and right sides of the fixed box, and the connecting seats are fixed to the bed by screws.

3. The structurally improved bearing outer ring inner groove fine grinding machine according to claim 1 or 2, characterized in that: The coupling includes two coupling bodies with the same structure and a toothed part located between the two coupling bodies. A coupling hole is passed through the coupling body for the output end or the screw rod of the precision reducer to extend into. A radial gap and an axial gap are provided on the head of the coupling body. One end of the radial gap is connected to the inner end of the axial gap. The two side walls of the axial gap are locked by connecting screws. An adjusting screw hole connected to the coupling hole is radially provided on the coupling body. An adjusting screw is provided in the adjusting screw hole. The edge of the tail of the coupling body is evenly distributed with a plurality of protrusions. The toothed part has a plurality of tooth grooves, and the protrusions are correspondingly inserted into the tooth grooves.

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