Milling equipment for bearing end cover surface machining

By designing milling equipment for bearing end cover surface processing, using a servo motor to drive a rotary table and an adjustable fixture, combined with rings and sliding brackets, continuous milling of the internal inclined surface of the bearing cover is achieved, solving the problem of frequent shutdowns to replace fixtures in the existing technology and improving production efficiency.

CN120755703AActive Publication Date: 2025-10-10ZHANGZHOU RUNSTAR BEARINGS MFG CO LTD
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Patent Information

Application Number
CN202511248461.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-03
Publication Date
2025-10-10
Estimated Expiration
2045-09-03

AI Technical Summary

Technical Problem

In the prior art, the milling process of the internal inclined surface of the bearing cover requires frequent shutdowns to replace fixtures, resulting in low production efficiency.

Method used

A milling device for machining the end cap surface of a bearing is designed. The device adopts a servo motor-driven rotary table and an adjustable fixture, combined with the design of a ring and a sliding bracket to achieve continuous positioning and loading and unloading of the workpiece. The coordination of the end gear and the milling assembly enables non-stop machining.

Benefits of technology

It improves production efficiency, reduces fixture positioning time, realizes continuous processing and loading and unloading of workpieces, and improves the degree of automation of the equipment.

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Abstract

The invention relates to the technical field of machining, in particular to milling equipment for bearing end cover face machining, which comprises a base, a tubular supporting piece is fixedly connected to the middle of the upper surface of the base, a servo motor is fixedly connected in the supporting piece, a circular connecting piece is fixedly connected to the output end of the servo motor, and a bearing end cover is fixedly connected to the connecting piece. A connecting piece is fixedly connected to the end face gear, an annular ring piece is fixedly connected to the outer portion of the connecting piece, a plurality of sliding supports are arranged on the ring piece in a sliding fit mode, gear boxes are rotatably installed in the sliding supports, and a rotating table is fixedly connected to an output shaft of each gear box. The time needed for positioning the clamp is saved, the feeding and discharging work of the workpiece is completed under the non-stop condition through rotation of the ring piece and horizontal movement of the sliding support, and the production efficiency is greatly improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of mechanical processing, and in particular to a milling device for processing a bearing end cover surface. Background Art

[0002] like Figure 1 As shown, the bearing cover is a common component in the gearbox, used to seal and support the bearing and the shaft inside the bearing. It is fixedly connected to the gearbox and is used to withstand the huge load generated by the rotation of the shaft during the operation of the gearbox. The bearing cover is generally cast into a blank by casting. The surface of the cast blank has a certain processing allowance, and it needs to be milled with a milling cutter to keep the bearing cover smooth and flat as a whole. During the processing, the surface of the batch bearing covers is usually milled first, and then the internal curved surface of the bearing cover with the milled surface is milled. In the process of milling the inside of the bearing cover, the inclined surface milling of the conical surface inside the bearing cover is the focus.

[0003] In the prior art, when milling the inclined surface inside the bearing cover, the bearing cover is only clamped by a simple clamp. After milling the inclined surface, the machine needs to be stopped, and the bearing cover on the clamp must be replaced and repositioned before milling the inclined surface can continue. The process of replacing the workpiece and positioning consumes a lot of time, greatly affecting production efficiency and is not conducive to large-scale production. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a milling device for machining the bearing end cover surface.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A milling device for processing the end cover surface of a bearing is designed, comprising a base, a circular tubular support member fixedly connected to the middle of the upper surface of the base, a servo motor fixedly connected inside the support member, a circular connecting member fixedly connected to the output end of the servo motor, an annular ring member fixedly connected to the outside of the connecting member, a plurality of sliding brackets slidably fitted on the ring member, a gear box rotatably installed inside the sliding bracket, a rotating table fixedly connected to the output shaft of the gear box, a clamp provided on the rotating table for clamping the workpiece, a power motor fixedly connected to the side wall of the gear box to input power to the gear box, a column installed on one side of the base surface, and a milling assembly provided on the top of the column for connecting a milling cutter.

[0007] Preferably, the sliding bracket is provided with an adjustment structure for adjusting the inclination angle of the clamp, and the adjustment structure includes a slider and a movable rod. The slider is slidably fitted in the sliding bracket, one end of the movable rod is hinged to the bottom of the gear box, and the other end of the movable rod is hinged to the top of the slider.

[0008] Preferably, the sliding support bottom is fixed with a baffle on both sides, the baffle is rotatably installed with an inner spline pipe with a threaded outer wall, and the inner spline pipe is threadedly matched with the sliding block to drive the sliding block to slide.

[0009] Preferably, the upper surface of the ring is rotatably installed with a face gear, the upper surface of the ring is fixed with a dust cover to prevent cutting chips from falling on the face gear, the dust cover is rotatably installed with a spline shaft, one end of the spline shaft is slidably matched in the inner spline pipe, the other end of the spline shaft is fixed with a driven gear, and the driven gear is matched with the face gear.

[0010] Preferably, the bottom of the ring is rotatably installed with a driving wheel abutting against the bottom surface of the face gear to drive the face gear to rotate.

[0011] Preferably, a plurality of notches are formed in the ring, the notches correspond to the sliding supports one by one, the notches are slidably matched with first hinged seats, and the first hinged seats are fixedly connected to the bottom surface of the sliding support.

[0012] Preferably, the bottom surface of the ring is provided with a plurality of driving structures to drive the first hinged seat to slide in the notch, the driving structure comprises a hinged rod and a connecting rod, the connecting rod is fixed to the bottom surface of the ring, the bottom end of the connecting rod is fixed with a sliding sleeve, the sliding sleeve is slidably matched with a sliding rod, the bottom end of the sliding rod is fixed with a second hinged seat, one end of the hinged rod is hinged to the first hinged seat, and the other end of the hinged rod is hinged to the second hinged seat.

[0013] Preferably, the support is provided with a lifting structure to drive the sliding rod to vertically slide in the sliding sleeve, the lifting structure comprises a guide rod and a pipe, the guide rod is horizontally fixed to the top end of the sliding rod, the pipe is fixed to the outer wall of the support, the top end of the pipe is rotatably connected to the bottom surface of the connecting piece, the outer wall of the pipe is formed with a wave-shaped guide groove, and the guide rod is slidably matched in the guide groove.

[0014] The milling equipment for bearing cover face machining has the beneficial effects that the rotation of the face gear can position and adjust all clamps at a time, the time required for clamp positioning is saved, the workpiece feeding and discharging work is completed without stopping under the rotation of the ring and the horizontal movement of the sliding support, and the production efficiency is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a working state schematic view of the bearing cover.

[0016] Figure 2 It is a structural schematic view of the milling equipment for bearing cover face machining.

[0017] Figure 3A top view of a milling device for machining a bearing end cover face according to the present invention.

[0018] Figure 4 A side view of a milling device for machining a bearing end cover face according to the present invention. Figure 3 A cross-sectional view along A-A.

[0019] Figure 5 A side view of a milling device for machining a bearing end cover face according to the present invention. Figure 3 A cross-sectional view along B-B.

[0020] Figure 6 A side view of a milling device for machining a bearing end cover face according to the present invention. Figure 5 An enlarged view of D.

[0021] Figure 7 A structure diagram of a base of a milling device for machining a bearing end cover face according to the present invention.

[0022] Figure 8 A structure diagram of a bottom of a ring of a milling device for machining a bearing end cover face according to the present invention.

[0023] Figure 9 A structure diagram of a ring cooperating with a pipe of a milling device for machining a bearing end cover face according to the present invention.

[0024] Figure 10 A side view of a milling device for machining a bearing end cover face according to the present invention. Figure 9 An enlarged view of E.

[0025] Figure 11 A structure diagram of an upper surface of a ring of a milling device for machining a bearing end cover face according to the present invention.

[0026] Figure 12 A side view of a milling device for machining a bearing end cover face according to the present invention. Figure 11 An enlarged view of C.

[0027] Figure 13 A front view of a sliding bracket of a milling device for machining a bearing end cover face according to the present invention.

[0028] Figure 14 A structure diagram of a sliding bracket of a milling device for machining a bearing end cover face according to the present invention. Figure 1 .

[0029] Figure 15 A structure diagram of a sliding bracket of a milling device for machining a bearing end cover face according to the present invention. Figure 2 .

[0030] Figure 16Structure diagram of sliding support of milling equipment for bearing end cover surface machining Figure 3 .

[0031] Figure 17 Structure diagram of inside of sliding support of milling equipment for bearing end cover surface machining.

[0032] Figure 18 Schematic diagram of milling cutter working state of milling equipment for bearing end cover surface machining Figure 1 .

[0033] Figure 19 Schematic diagram of milling cutter working state of milling equipment for bearing end cover surface machining Figure 2 .

[0034] In the figure: 1, base; 2, column; 3, milling assembly; 4, support; 5, servo motor; 6, pipe; 601, guide groove; 7, connecting piece; 8, ring; 9, notch; 10, dust cover; 11, face gear; 12, spline shaft; 13, driven gear; 14, inner spline pipe; 15, sliding support; 16, baffle; 17, sliding block; 18, movable rod; 19, first hinged seat; 20, hinged rod; 21, second hinged seat; 22, sliding rod; 23, guide rod; 24, gear box; 25, rotary table; 26, clamp; 27, power motor; 28, sliding sleeve; 29, connecting rod; 30, drive wheel. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments.

[0036] Referring to Figures 2-5 and Figures 13-16 , a kind of milling equipment for bearing end cover surface machining, including base 1, the upper surface of base 1 middle part is fixedly connected with the support 4 of circular tube, support 4 in fixedly connected with servo motor 5, servo motor 5 output end is fixedly connected with the connecting piece 7 of circle, to drive connecting piece 7 rotation, connecting piece 7 outside is fixedly connected with the ring 8 of circular ring, ring 8 is slidably fitted with multiple sliding supports 15, gear box 24 is rotatably installed in sliding support 15, the output shaft of gear box 24 is fixedly connected with rotary table 25, rotary table 25 is equipped with clamp 26 to be clamped to workpiece, power motor 27 is fixedly connected on the side wall of gear box 24, to input power to gear box 24, column 2 is installed on the surface of base 1 side, and column 2 top is equipped with milling assembly 3 to connect milling cutter.

[0037] When the device is working, the power motor 27 drives the rotating table 25 to rotate through the gear box 24, and the clamp 26 on the rotating table 25 clamps and fixes the workpiece, which rotates with the rotating table 25.

[0038] Secondly, as shown in Figure 18 and Figure 19 , the gear box 24 is rotated on the sliding support 15 to adjust the inclination angle of the workpiece, so that the generatrix of the conical surface inside the bearing cover is in a vertical state.

[0039] Finally, since the column 2 is detachably connected to the base 1, the horizontal position of the milling assembly 3 is adjusted by adjusting the position of the column 2 on the base 1, so that the milling cutter at the bottom of the milling assembly 3 abuts against the conical surface, at this time, the milling assembly 3 drives the milling cutter to work to mill the conical surface.

[0040] As shown in Figures 13-17 , the sliding support 15 is provided with an adjusting structure for adjusting the inclination angle of the clamp 26, the adjusting structure includes a sliding block 17 and a movable rod 18, the sliding block 17 is slidingly fitted in the sliding support 15, one end of the movable rod 18 is hinged to the bottom of the gear box 24, the other end of the movable rod 18 is hinged to the top of the sliding block 17, the sliding support 15 is fixedly connected with a baffle 16 on both sides of the bottom, and the inner spline tube 14 with threads on the outer wall is rotatably installed on the baffle 16, the inner spline tube 14 is threadedly matched with the sliding block 17 to drive the sliding block 17 to slide.

[0041] When the inner spline tube 14 rotates, the sliding block 17 is driven to move horizontally inside the sliding support 15 through the threads on the surface, and the sliding block 17 drives the gear box 24 to rotate on the sliding support 15 through the movable rod 18 during movement, so as to adjust the angle of the workpiece in the clamp 26.

[0042] As shown in Figure 11 , Figure 12 and Figure 17 , the end face gear 11 is rotatably installed on the upper surface of the ring piece 8, the dust cover 10 is fixedly connected to the upper surface of the ring piece 8 to prevent cutting chips from falling on the end face gear 11, the spline shaft 12 is rotatably installed on the dust cover 10, one end of the spline shaft 12 is slidingly fitted in the inner spline tube 14, and the other end of the spline shaft 12 is fixedly connected with the driven gear 13 which is matched with the end face gear 11.

[0043] When the end face gear 11 rotates, all the driven gears 13 are simultaneously driven to rotate, the driven gears 13 drive the spline shaft 12 to rotate, the spline shaft 12 is matched with the inner spline tube 14, and the spline shaft 12 drives the inner spline tube 14 to rotate during rotation.

[0044] As shown in Figure 5 and Figure 6As shown, the bottom of the ring 8 is rotatably connected with a driving wheel 30, which abuts against the bottom surface of the face gear 11 to drive the face gear 11 to rotate.

[0045] The staff manually drives the driving wheel 30 at the bottom of the ring 8 to rotate, which drives the face gear 11 to rotate in the process of rotating the driving wheel 30, so that the face gear 11 drives all the driven gears 13 to rotate.

[0046] As shown in Figures 8-11 , a plurality of notches 9 are formed through the ring 8, and the notches 9 correspond to the sliding supports 15 one by one. The first hinged seat 19 is slidingly connected in the notches 9 and is fixedly connected to the bottom surface of the sliding support 15.

[0047] When the first hinged seat 19 slides in the notches 9, it drives the sliding support 15 to move synchronously, thereby driving the workpiece to move, so as to complete the feeding and discharging of the workpiece in the milling process.

[0048] As shown in Figure 8 , Figure 9 and Figures 13-17 , a plurality of driving structures are arranged on the bottom surface of the ring 8 to drive the first hinged seat 19 to slide in the notches 9. The driving structure includes a hinged rod 20 and a connecting rod 29. The connecting rod 29 is fixedly connected to the bottom surface of the ring 8. The bottom end of the connecting rod 29 is fixedly connected with a sliding sleeve 28. The sliding sleeve 28 is slidingly connected with a sliding rod 22. The bottom end of the sliding rod 22 is fixedly connected with a second hinged seat 21. One end of the hinged rod 20 is hinged to the first hinged seat 19, and the other end of the hinged rod 20 is hinged to the second hinged seat 21.

[0049] The sliding sleeve 28 is fixedly connected with the ring 8 through the connecting rod 29. When the sliding rod 22 moves vertically in the sliding sleeve 28, it drives the second hinged seat 21 to move synchronously. When the second hinged seat 21 moves vertically, it drives the first hinged seat 19 to slide in the notches 9 through the hinged rod 20, so as to drive the sliding support 15 to move.

[0050] As shown in Figure 7 , Figure 9 and Figure 10 , the support 4 is provided with a lifting structure to drive the sliding rod 22 to vertically slide in the sliding sleeve 28. The lifting structure includes a guide rod 23 and a pipe 6. The guide rod 23 is horizontally fixedly connected to the top end of the sliding rod 22. The pipe 6 is fixedly connected to the outer wall of the support 4. The top end of the pipe 6 is rotatably connected to the bottom surface of the connecting piece 7. The outer wall of the pipe 6 is provided with a wave-shaped guide groove 601, and the guide rod 23 is slidingly connected in the guide groove 601.

[0051] The servo motor 5 is powered to drive the connecting member 7 to rotate, the connecting member 7 rotates to drive the ring member 8 to rotate, the rotation of the ring member 8 drives the sliding sleeve 28 to rotate around the pipe member 6 through the connecting rod 29, and the sliding rod 22 in the sliding sleeve 28 also rotates around the pipe member 6, and since the guide rod 23 at the top end of the sliding rod 22 is in sliding fit with the guide groove 601 on the surface of the pipe member 6, the guide rod 23 moves up and down along the guide groove 601 during the rotation of the sliding rod 22 around the pipe member 6, so that the sliding rod 22 vertically slides in the sliding sleeve 28.

[0052] Working principle:

[0053] Fix a workpiece in a clamp 26;

[0054] The driving wheel 30 is manually rotated to drive the end face gear 11 to rotate through the driving wheel 30, the rotation of the end face gear 11 drives all the driven gears 13 to rotate, the rotation of the driven gears 13 drives the spline shaft 12 to rotate, the spline shaft 12 drives the inner spline pipe 14 to rotate, the inner spline pipe 14 drives the sliding block 17 to slide through the threaded fit, the sliding block 17 slides to drive the gear box 24 to deflect on the top of the sliding support 15 to adjust the angle of the workpiece, and after a generatrix of the conical surface of the workpiece is in a vertical state, the angle positioning work of all the clamps 26 is completed, and the remaining clamps 26 do not need to be positioned and can be directly fixed to the workpiece.

[0055] After the workpiece is rotated by starting the power motor 27, the position of the column is adjusted, the milling cutter is abutted on the conical surface of the workpiece, and the milling cutter is driven to operate by the milling assembly 3 to mill the conical surface of the workpiece.

[0056] After the workpiece is processed, the servo motor 5 is started to drive the connecting member 7 to rotate, the connecting member 7 rotates to drive the ring member 8 to rotate, and the rotation of the ring member 8 moves the workpiece to be processed at the next station to the milling cutter. At the same time, the rotation of the ring member 8 drives the sliding sleeve 28 to rotate around the pipe member 6 through the connecting rod 29, and the sliding rod 22 in the sliding sleeve 28 also rotates around the pipe member 6, and since the guide rod 23 at the top end of the sliding rod 22 is in sliding fit with the guide groove 601 on the surface of the pipe member 6, the guide rod 23 moves up and down along the guide groove 601 during the rotation of the sliding rod 22 around the pipe member 6.

[0057] In a cycle of up and down movement:

[0058] The sliding rod 22 first moves downward, the sliding rod 22 drives the second hinged seat 21 to move downward, the second hinged seat 21 drives the circumferentially arranged first hinged seat 19 to move centripetally through the hinged rod 20, the centripetal movement of the first hinged seat 19 makes the sliding support 15 close to the connecting member 7, so that the workpiece in the clamp 26 moves horizontally and separates from the milling cutter.

[0059] After the finished workpiece is separated from the milling cutter, the work station where the milling cutter is located is vacated by rotating the ring 8, so that the workpiece to be processed in the next work station is moved to the milling cutter.

[0060] After the finished workpiece vacates the position, the workpiece to be processed is moved to the work station where the milling cutter is located. At this time, the slide rod 22 starts to move upward, the second hinged seat 21 is moved upward by the slide rod 22, the second hinged seat 21 drives the first hinged seat 19 arranged in a circle to do centrifugal motion through the hinged rod 20. The centrifugal motion of the first hinged seat 19 will make the sliding support 15 away from the connecting piece 7, so that the workpiece to be processed in the clamp 26 is close to the milling cutter, so that the conical surface in the workpiece to be processed abuts on the milling cutter, so as to complete the feeding and discharging work of the workpiece without stopping.

[0061] Since the finished workpiece vacates the work station, the finished workpiece can be replaced at any time, without stopping the equipment to replace the workpiece.

[0062] Compared with the prior art, the milling device for machining the surface of the bearing end cover provided by the present application can position and adjust all clamps 26 at one time through the rotation of the face gear 11, save the time required for clamp positioning, complete the feeding and discharging work of the workpiece without stopping through the rotation of the ring 8 and the horizontal movement of the sliding support 15, and greatly improve the production efficiency.

[0063] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A milling device for machining a bearing end cover surface, comprising a base (1), a cylindrical support member (4) fixedly connected to the middle of the upper surface of the base (1), a servo motor (5) fixedly connected inside the support member (4), characterized in that: A circular connector (7) is fixedly connected to the output end of the servo motor (5), a circular ring (8) is fixedly connected to the outside of the connector (7), a plurality of sliding brackets (15) are slidably fitted on the ring (8), a gear box (24) is rotatably mounted in the sliding bracket (15), a rotating table (25) is fixedly connected to the output shaft of the gear box (24), a fixture (26) is provided on the rotating table (25) for clamping the workpiece, a power motor (27) is fixedly connected to the side wall of the gear box (24) to input power to the gear box (24), and a gear box (24) is provided on the base (1). ) is mounted on one side of the surface of the ring member (8), a milling assembly (3) is provided on the top of the column (2) for connecting the milling cutter, an end face gear (11) is rotatably mounted on the upper surface of the ring member (8), a dust cover (10) is fixedly connected to the upper surface of the ring member (8) for preventing cutting chips from falling on the end face gear (11), a spline shaft (12) is rotatably mounted on the dust cover (10), one end of the spline shaft (12) is slidably fitted in the inner spline tube (14), and the other end of the spline shaft (12) is fixedly connected to a driven gear (13), and the driven gear (13) matches the end face gear (11).

2. The milling equipment for machining the bearing end cover surface according to claim 1, characterized in that: The sliding bracket (15) is provided with an adjustment structure for adjusting the tilt angle of the clamp (26), and the adjustment structure includes a slider (17) and a movable rod (18). The slider (17) is slidably fitted in the sliding bracket (15), and one end of the movable rod (18) is hinged to the bottom of the gear box (24), and the other end of the movable rod (18) is hinged to the top of the slider (17).

3. The milling equipment for machining the bearing end cover surface according to claim 2, characterized in that: Baffles (16) are fixedly connected to both sides of the bottom of the sliding bracket (15), and an inner spline tube (14) with a threaded outer wall is rotatably mounted on the baffle (16). The inner spline tube (14) is threadably matched with the slider (17) to drive the slider (17) to slide.

4. The milling equipment for machining the bearing end cover surface according to claim 3, characterized in that: A driving wheel (30) is rotatably mounted on the bottom of the ring member (8), and the driving wheel (30) abuts against the bottom surface of the end face gear (11) to drive the end face gear (11) to rotate.

5. The milling equipment for machining the bearing end cover surface according to any one of claims 1 to 4, characterized in that: A plurality of slots (9) are formed through the ring member (8), and the slots (9) correspond to the sliding brackets (15) one by one. A first hinge seat (19) is slidably fitted in the slots (9), and the first hinge seat (19) is fixedly connected to the bottom surface of the sliding bracket (15).

6. The milling equipment for machining the bearing end cover surface according to claim 5, characterized in that: The bottom surface of the ring member (8) is provided with a plurality of driving structures for driving the first hinge seat (19) to slide in the slot (9), the driving structure comprising a hinge rod (20) and a connecting rod (29), the connecting rod (29) being fixed to the bottom surface of the ring member (8), the bottom end of the connecting rod (29) being fixed with a sliding sleeve (28), the sliding sleeve (28) being slidably fitted with a sliding rod (22), the bottom end of the sliding rod (22) being fixed with a second hinge seat (21), one end of the hinge rod (20) being hinged to the first hinge seat (19), and the other end of the hinge rod (20) being hinged to the second hinge seat (21).

7. The milling equipment for machining the bearing end cover surface according to claim 6, characterized in that: The support member (4) is provided with a lifting structure for driving the slide rod (22) to slide vertically in the slide sleeve (28), and the lifting structure includes a guide rod (23) and a pipe (6), wherein the guide rod (23) is horizontally fixed to the top end of the slide rod (22), the pipe (6) is fixed to the outer wall of the support member (4), the top end of the pipe (6) is rotatably connected to the bottom surface of the connecting member (7), and a wavy guide groove (601) is provided on the outer wall of the pipe (6), and the guide rod (23) is slidably fitted in the guide groove (601).

Citation Information

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